/*
 * :ts=4
 *
 * SMB file system wrapper for AmigaOS, using the AmiTCP V3 API
 *
 * Copyright (C) 2000-2018 by Olaf `Olsen' Barthel <obarthel -at- gmx -dot- net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/*
 * cpr smbfs.debug domain=workgroup user=olsen password=... volume=olsen //felix/olsen
 * cpr smbfs.debug dumpsmb user=guest volume=amiga //windows7-amiga/Users/Public
 * copy "amiga:Public/Documents/Amiga Files/Shared/dir/Windows-Export/LP2NRFP.h" ram:
 * smbfs.debug user=guest volume=sicherung //192.168.1.76/sicherung-smb
 * smbfs maxtransmit=16600 debuglevel=2 dumpsmb dumpsmblevel=2 domain=workgroup user=olsen password=... volume=olsen //felix/olsen
 * Fritz!Box: smbfs debuglevel=2 debugfile=ram:fritz.nas.log user=nas password=nas volume=fritz.nas //fritzbox-3272/fritz.nas
 * Samba 4.6.7: smbfs debuglevel=2 debugfile=ram:ubuntu-17.log volume=ubuntu-test //ubuntu-17-olaf/test
 * Samba 4.7.6: smbfs debuglevel=2 debugfile=ram:ubuntu-18.log volume=ubuntu-test //ubuntu-18-olaf/test
 * Samba 3.0.25: smbfs debuglevel=2 debugfile=ram:samba-3.0.25.log user=olsen password=... volume=olsen //192.168.1.118/olsen
 */

#include "smbfs.h"

/****************************************************************************/

#include "smb_abstraction.h"
#include "cp437.h"
#include "cp850.h"
#include "errors.h"
#include "quad_math.h"
#include "dump_smb.h"

/****************************************************************************/

#include <smb/smb_fs_sb.h>
#include <smb/smb_fs.h>
#include <smb/smb.h>

/****************************************************************************/

#include "smbfs_rev.h"
TEXT Version[] = VERSTAG;

/****************************************************************************/

#define UNIX_TIME_OFFSET 252460800
#define MAX_FILENAME_LEN 255

/****************************************************************************/

#define SMB_ROOT_DIR_NAME	"\\"
#define SMB_PATH_SEPARATOR	'\\'

/****************************************************************************/

typedef STRPTR	KEY;
typedef LONG *	NUMBER;
typedef LONG	SWITCH;

/****************************************************************************/

struct FileNode
{
	struct MinNode		fn_MinNode;

	ULONG				fn_Magic;

	struct FileHandle *	fn_Handle;

	QUAD				fn_OffsetQuad;
	LONG				fn_Mode;

	smba_file_t *		fn_File;
	STRPTR				fn_FullName;
};

/****************************************************************************/

struct LockNode
{
	struct MinNode			ln_MinNode;

	ULONG					ln_Magic;

	struct FileLock			ln_FileLock;

	smba_file_t *			ln_File;
	STRPTR					ln_FullName;

	const struct MsgPort *	ln_LastUser;

	unsigned int			ln_RestartExamine:1;
};

/****************************************************************************/

/* The minimum operating system version we require to work. */
#define MINIMUM_OS_VERSION 37		/* Kickstart 2.04 or better */
/*#define MINIMUM_OS_VERSION 39*/	/* Kickstart 3.0 or better */

/****************************************************************************/

/* Careful: the memory pool routines in amiga.lib are available only to
 *          SAS/C and similar compilers (not necessarily to GCC).
 */
#if defined(__GNUC__) && (MINIMUM_OS_VERSION < 39)

#undef MINIMUM_OS_VERSION
#define MINIMUM_OS_VERSION 39

#endif /* __GNUC__ */

/****************************************************************************/

#if (MINIMUM_OS_VERSION < 39)

/* These are in amiga.lib */
APTR ASM AsmCreatePool(REG(d0,ULONG memFlags),REG(d1,ULONG puddleSize),REG(d2,ULONG threshSize),REG(a6,struct Library * SysBase));
void ASM AsmDeletePool(REG(a0,APTR poolHeader),REG(a6,struct Library * SysBase));
APTR ASM AsmAllocPooled(REG(a0,APTR poolHeader),REG(d0,ULONG memSize),REG(a6,struct Library * SysBase));
void ASM AsmFreePooled(REG(a0,APTR poolHeader),REG(a1,APTR memory),REG(d0,ULONG memSize),REG(a6,struct Library * SysBase));

#define CreatePool(memFlags,puddleSize,threshSize) AsmCreatePool((memFlags),(puddleSize),(threshSize),SysBase)
#define DeletePool(poolHeader) AsmDeletePool((poolHeader),SysBase)
#define AllocPooled(poolHeader,memSize) AsmAllocPooled((poolHeader),(memSize),SysBase)
#define FreePooled(poolHeader,memory,memSize) AsmFreePooled((poolHeader),(memory),(memSize),SysBase)

#endif /* MINIMUM_OS_VERSION */

/****************************************************************************/

/* Forward declarations for local routines. */
static LONG main(void);
static ULONG get_stack_size(void);
static void stack_usage_init(struct StackSwapStruct * stk);
static ULONG stack_usage_exit(const struct StackSwapStruct * stk);
static LONG CVSPrintf(const TEXT * format_string, APTR args);
static void VSPrintf(STRPTR buffer, const TEXT * formatString, APTR args);
static void cleanup(void);
static BOOL setup(const TEXT * program_name, const TEXT * service, const TEXT * workgroup, const TEXT * username, STRPTR opt_password, BOOL opt_changecase, const TEXT * opt_clientname, const TEXT * opt_servername, int opt_cachesize, int opt_max_transmit, int opt_timeout, LONG *opt_time_zone_offset, LONG *opt_dst_offset, BOOL opt_raw_smb, BOOL opt_unicode, BOOL opt_prefer_core_protocol, BOOL opt_prefer_write_raw, BOOL opt_write_behind, BOOL opt_prefer_read_raw, const TEXT * device_name, const TEXT * volume_name, const TEXT * translation_file);
static void file_system_handler(BOOL raise_priority, const TEXT * device_name, const TEXT * volume_name, const TEXT * service_name);

/****************************************************************************/

struct Library *			SysBase;
struct Library *			DOSBase;
struct Library *			UtilityBase;
struct Library *			IntuitionBase;
struct Library *			SocketBase;
struct Library *			LocaleBase;
struct Library *			TimerBase;
struct Library *			IconBase;

/****************************************************************************/

#if defined(__amigaos4__)

/****************************************************************************/

struct ExecIFace *			IExec;
struct DOSIFace *			IDOS;
struct UtilityIFace *		IUtility;
struct IntuitionIFace *		IIntuition;
struct SocketIFace *		ISocket;
struct LocaleIFace *		ILocale;
struct TimerIFace *			ITimer;
struct IconIFace *			IIcon;

/****************************************************************************/

#endif /* __amigaos4__ */

/****************************************************************************/

struct timerequest			TimerRequest;

/****************************************************************************/

struct Locale *				Locale;

/****************************************************************************/

int							errno;
int							h_errno;

/****************************************************************************/

static struct DosList *		DeviceNode;
static BOOL					DeviceNodeAdded;
static struct DosList *		VolumeNode;
static BOOL					VolumeNodeAdded;
static struct MsgPort *		FileSystemPort;

static smba_server_t *		ServerData;

static BOOL					Quit;
static BOOL					Quiet;
static BOOL					CaseSensitive;
static BOOL					OmitHidden;

static LONG					DSTOffset;
static LONG					TimeZoneOffset;
static BOOL					OverrideLocaleTimeZone;

static BOOL					WriteProtected;
static ULONG				WriteProtectKey;

static struct MinList		FileList;
static struct MinList		LockList;

static APTR					MemoryPool;
static ULONG				total_memory_allocated;
static ULONG				max_memory_allocated;

static struct RDArgs *		Parameters;
static struct DiskObject *	Icon;

static struct WBStartup *	WBStartup;

static struct MinList		ErrorList;

static STRPTR				NewProgramName;

static BOOL					TranslateNames;

static TEXT					map_amiga_to_smb_name[256];
static TEXT					map_smb_to_amiga_name[256];

/****************************************************************************/

#if defined(__amigaos4__)

/* The AmigaOS 2.x/3.x version needs about 20000 bytes of stack,
 * which is allocated at runtime. This is how it's done with
 * AmigaOS 4.x, for which the shell allocates the stack
 * before launching the program.
 */
const char stack_size_cookie[] = "$STACK: 30000";

#endif /* __amigaos4__ */

/****************************************************************************/

extern int STDARGS swap_stack_and_call(struct StackSwapStruct * stk,APTR function);

/****************************************************************************/

LONG
_start(STRPTR args, LONG args_length, struct ExecBase * exec_base)
{
	struct StackSwapStruct * stk = NULL;
	APTR new_stack = NULL;
	LONG new_stack_size = 20000;
	struct Process * this_process;
	LONG result = RETURN_FAIL;

	#if defined(__amigaos4__)
	{
		SysBase = (struct Library *)exec_base;

		IExec = (struct ExecIFace *)((struct ExecBase *)SysBase)->MainInterface;
	}
	#else
	{
		SysBase = (struct Library *)AbsExecBase;
	}
	#endif /* __amigaos4__ */

	/* Pick up the Workbench startup message, if
	 * there is one.
	 */
	this_process = (struct Process *)FindTask(NULL);
	if(this_process->pr_CLI == ZERO)
	{
		WaitPort(&this_process->pr_MsgPort);
		WBStartup = (struct WBStartup *)GetMsg(&this_process->pr_MsgPort);
	}
	else
	{
		WBStartup = NULL;
	}

	/* Open the libraries we need and check
	 * whether we could get them.
	 */
	DOSBase = OpenLibrary("dos.library",0);

	#if defined(__amigaos4__)
	{
		if(DOSBase != NULL)
		{
			IDOS = (struct DOSIFace *)GetInterface(DOSBase, "main", 1, 0);
			if(IDOS == NULL)
			{
				CloseLibrary(DOSBase);
				DOSBase = NULL;
			}
		}
	}
	#endif /* __amigaos4__ */

	UtilityBase = OpenLibrary("utility.library",37);

	#if defined(__amigaos4__)
	{
		if(UtilityBase != NULL)
		{
			IUtility = (struct UtilityIFace *)GetInterface(UtilityBase, "main", 1, 0);
			if(IUtility == NULL)
			{
				CloseLibrary(UtilityBase);
				UtilityBase = NULL;
			}
		}
	}
	#endif /* __amigaos4__ */

	if(UtilityBase == NULL || DOSBase == NULL || DOSBase->lib_Version < MINIMUM_OS_VERSION)
	{
		/* Complain loudly if this is not the operating
		 * system version we expected.
		 */
		if(DOSBase != NULL && this_process->pr_CLI != ZERO)
		{
			STRPTR msg;

			#if (MINIMUM_OS_VERSION < 39)
			{
				msg = "AmigaOS 2.04 or higher required.\n";
			}
			#else
			{
				msg = "AmigaOS 3.0 or higher required.\n";
			}
			#endif /* MINIMUM_OS_VERSION */

			Write(Output(),msg,strlen(msg));
		}

		goto out;
	}

	/* For AmigaOS4 we expect the stack size to be
	 * sufficient, because of the "STACK" string
	 * cookie.
	 */
	#if defined(__amigaos4__)
	{
		result = main();
	}
	/* For AmigaOS 2.x/3.x we check how much stack size the
	 * program has available and, if necessary, allocate
	 * a larger stack and use that instead.
	 */
	#else
	{
		/* Not enough stack size available? */
		if(get_stack_size() < new_stack_size)
		{
			/* Make the new stack size a multiple of 32 bytes. */
			new_stack_size = 32 + ((new_stack_size + 31UL) & ~31UL);

			/* Allocate the new stack swapping data structure
			 * and the stack space separately.
			 */
			stk = AllocVec(sizeof(*stk),MEMF_PUBLIC|MEMF_ANY);
			if(stk == NULL)
				goto out;

			new_stack = AllocMem(new_stack_size,MEMF_PUBLIC|MEMF_ANY);
			if(new_stack == NULL)
				goto out;

			/* Fill in the lower and upper bounds, then take care of
			 * the stack pointer itself.
			 */
			stk->stk_Lower		= new_stack;
			stk->stk_Upper		= ((ULONG)new_stack) + new_stack_size;
			stk->stk_Pointer	= (APTR)(stk->stk_Upper - 32);

			/* Testing: fill the stack with a preset pattern, so that we
			 * can measure later how much stack space was used.
			 */
			/* stack_usage_init(stk); */

			result = swap_stack_and_call(stk,(APTR)main);

			/* Testing: figure out how much stack space was used. */
			/* Printf("stack size used = %lu\n",stack_usage_exit(stk)); */
		}
		/* Sufficient stack space should be available. */
		else
		{
			result = main();
		}
	}
	#endif /* __amigaos4__ */

 out:

	if(stk != NULL)
		FreeVec(stk);

	if(new_stack != NULL)
		FreeMem(new_stack,new_stack_size);

	#if defined(__amigaos4__)
	{
		if(IUtility != NULL)
		{
			DropInterface((struct Interface *)IUtility);
			IUtility = NULL;
		}
	}
	#endif /* __amigaos4__ */

	if(UtilityBase != NULL)
	{
		CloseLibrary(UtilityBase);
		UtilityBase = NULL;
	}

	#if defined(__amigaos4__)
	{
		if(IDOS != NULL)
		{
			DropInterface((struct Interface *)IDOS);
			IDOS = NULL;
		}
	}
	#endif /* __amigaos4__ */

	if(DOSBase != NULL)
	{
		CloseLibrary(DOSBase);
		DOSBase = NULL;
	}

	if(WBStartup != NULL)
	{
		Forbid();
		ReplyMsg((struct Message *)WBStartup);
	}

	return(result);
}

/****************************************************************************/

/* Figure out how much stack size is available to the running
 * Task. Returns the size in bytes.
 */
static ULONG
get_stack_size(void)
{
	struct Task * tc = FindTask(NULL);
	ULONG upper,lower;
	ULONG result;

	/* How much stack size was provided? */
	upper = (ULONG)tc->tc_SPUpper;
	lower = (ULONG)tc->tc_SPLower;

	result = upper - lower;

	return(result);
}

/****************************************************************************/

/* This byte value is used to detect how much stack size
 * was being used.
 */
#define STACK_FILL_COOKIE 0xA1

/****************************************************************************/

/* Testing: Fill the stack memory with a well-defined value which can later
 * be used to figure out how much stack space was used by the program.
 * This is needed by stack_usage_exit().
 */
static void
stack_usage_init(struct StackSwapStruct * stk)
{
	size_t stack_size = ((ULONG)stk->stk_Upper - (ULONG)stk->stk_Lower);

	memset(stk->stk_Lower,STACK_FILL_COOKIE,stack_size);
}

/* Testing: Check how much stack space was used by looking at where
 * the test pattern previously written to the stack memory was
 * overwritten. Returns how much space was used (in bytes).
 */
static ULONG
stack_usage_exit(const struct StackSwapStruct * stk)
{
	const UBYTE * m = (const UBYTE *)stk->stk_Lower;
	size_t stack_size = ((ULONG)stk->stk_Upper - (ULONG)stk->stk_Lower);
	size_t unused_stack_space,i;

	unused_stack_space = 0;

	/* Figure out how much of the stack was used by checking
	 * if the fill pattern was overwritten.
	 */
	for(i = 0 ; i < stack_size ; i++)
	{
		/* Strangely, the first long word is always trashed,
		 * even if the stack doesn't grow down this far...
		 */
		if(i > sizeof(LONG) && m[i] != STACK_FILL_COOKIE)
			break;

		unused_stack_space++;
	}

	return(stack_size - unused_stack_space);
}

/****************************************************************************/

/* This is the traditional main() program. */
static LONG
main(void)
{
	struct
	{
		KEY		Workgroup;
		KEY		UserName;
		KEY		Password;
		SWITCH	ChangeCase;
		SWITCH	CaseSensitive;
		SWITCH	OmitHidden;
		SWITCH	Quiet;
		SWITCH	RaisePriority;
		KEY		ClientName;
		KEY		ServerName;
		KEY		DeviceName;
		KEY		VolumeName;
		NUMBER	CacheSize;
		NUMBER	MaxTransmit;
		NUMBER	Timeout;
		NUMBER	TimeZoneOffset;
		NUMBER	DSTOffset;
		KEY		Protocol;
		SWITCH	NetBIOSTransport;
		SWITCH	PreferWriteRaw;
		SWITCH	WriteBehind;
		SWITCH	PreferReadRaw;
		KEY		Unicode;
		SWITCH	CP437;
		SWITCH	CP850;
		KEY		TranslationFile;
		KEY		Service;
		NUMBER	DebugLevel;
		KEY		DebugFile;
		SWITCH	DumpSMB;
		NUMBER	DumpSMBLevel;
		KEY		DumpSMBFile;
	} args;

	STRPTR cmd_template =
		"DOMAIN=WORKGROUP/K,"
		"USER=USERNAME/K,"
		"PASSWORD/K,"
		"CHANGECASE/S,"
		"CASE=CASESENSITIVE/S,"
		"OMITHIDDEN/S,"
		"QUIET/S,"
		"RAISEPRIORITY/S,"
		"CLIENT=CLIENTNAME/K,"
		"SERVER=SERVERNAME/K,"
		"DEVICE=DEVICENAME/K,"
		"VOLUME=VOLUMENAME/K,"
		"CACHE=CACHESIZE/N/K,"
		"MAXTRANSMIT/N/K,"
		"TIMEOUT/N/K,"
		"TZ=TIMEZONEOFFSET/N/K,"
		"DST=DSTOFFSET/N/K,"
		"PROTOCOL/K,"
		"NETBIOS/S,"
		"PREFERWRITERAW/S,"
		"WRITEBEHIND/S,"
		"PREFERREADRAW/S,"
		"UNICODE/K,"
		"CP437/S,"
		"CP850/S,"
		"TRANSLATE=TRANSLATIONFILE/K,"
		"SERVICE/A,"
		"DEBUGLEVEL=DEBUG/N/K,"
		"DEBUGFILE/K,"
		"DUMPSMB/S,"
		"DUMPSMBLEVEL/N/K,"
		"DUMPSMBFILE/K";

	BPTR debug_file = (BPTR)NULL;
	BOOL close_debug_file = FALSE;
	TEXT program_name[MAX_FILENAME_LEN+1];
	LONG result = RETURN_FAIL;
	LONG number;
	LONG tz_number, dst_number;
	LONG cache_size = 0;
	LONG max_transmit = -1;
	LONG timeout = 0;
	char env_protocol[8];
	char env_workgroup_name[17];
	char env_user_name[64];
	char env_password[64];

	/* Don't emit any debugging output before we are ready. */
	SETDEBUGLEVEL(0);

	/* This needs to be set up properly for report_error()
	 * to work.
	 */
	NewList((struct List *)&ErrorList);

	memset(&args,0,sizeof(args));

	/* If this program was launched from Workbench,
	 * parameter passing will have to be handled
	 * differently.
	 */
	if(WBStartup != NULL)
	{
		STRPTR str;
		BPTR old_dir;
		LONG n;

		if(WBStartup->sm_NumArgs > 1)
			n = 1;
		else
			n = 0;

		/* Get the name of the program, as it was launched
		 * from Workbench. We actually prefer the name of
		 * the first project file, if there is one.
		 */
		strlcpy(program_name,WBStartup->sm_ArgList[n].wa_Name,sizeof(program_name));

		/* Now open icon.library and read that icon. */
		IconBase = OpenLibrary("icon.library",0);

		#if defined(__amigaos4__)
		{
			if(IconBase != NULL)
			{
				IIcon = (struct IconIFace *)GetInterface(IconBase, "main", 1, 0);
				if(IIcon == NULL)
				{
					CloseLibrary(IconBase);
					IconBase = NULL;
				}
			}
		}
		#endif /* __amigaos4__ */

		if(IconBase == NULL)
		{
			report_error("Could not open 'icon.library'.");
			goto out;
		}

		old_dir = CurrentDir(WBStartup->sm_ArgList[n].wa_Lock);
		Icon = GetDiskObject(WBStartup->sm_ArgList[n].wa_Name);
		CurrentDir(old_dir);

		if(Icon == NULL)
		{
			report_error("Icon not found.");
			goto out;
		}

		/* Only input validation errors are reported below. */
		result = RETURN_ERROR;

		/* Examine the icon's tool types and use the
		 * information to fill the startup parameter
		 * data structure.
		 */
		str = FindToolType(Icon->do_ToolTypes,"DOMAIN");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"WORKGROUP");

		if(str == NULL)
		{
			if(GetVar("smbfs_domain",env_workgroup_name,sizeof(env_workgroup_name),0) > 0 ||
			   GetVar("smbfs_workgroup",env_workgroup_name,sizeof(env_workgroup_name),0) > 0)
			{
				str = env_workgroup_name;
			}
		}

		args.Workgroup = str;

		str = FindToolType(Icon->do_ToolTypes,"USER");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"USERNAME");

		if(str == NULL)
		{
			if(GetVar("smbfs_user",env_user_name,sizeof(env_user_name),0) > 0 ||
			   GetVar("smbfs_username",env_user_name,sizeof(env_user_name),0) > 0)
			{
				str = env_user_name;
			}
		}

		args.UserName = str;

		str = FindToolType(Icon->do_ToolTypes,"PASSWORD");
		if(str == NULL)
		{
			if(GetVar("smbfs_password",env_password,sizeof(env_password),0) > 0)
				str = env_password;
		}

		args.Password = str;

		if(FindToolType(Icon->do_ToolTypes,"CHANGECASE") != NULL)
			args.ChangeCase = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"OMITHIDDEN") != NULL)
			args.OmitHidden = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"QUIET") != NULL)
			args.Quiet = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"RAISEPRIORITY") != NULL)
			args.RaisePriority = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"CASE") != NULL ||
		   FindToolType(Icon->do_ToolTypes,"CASESENSITIVE") != NULL)
		{
			args.CaseSensitive = TRUE;
		}

		str = FindToolType(Icon->do_ToolTypes,"CLIENT");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"CLIENTNAME");

		args.ClientName = str;

		str = FindToolType(Icon->do_ToolTypes,"SERVER");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"SERVERNAME");

		args.ServerName = str;

		str = FindToolType(Icon->do_ToolTypes,"DEVICE");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"DEVICENAME");

		args.DeviceName = str;

		str = FindToolType(Icon->do_ToolTypes,"VOLUME");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"VOLUMENAME");

		args.VolumeName = str;

		str = FindToolType(Icon->do_ToolTypes,"SERVICE");
		args.Service = str;

		if(str != NULL)
		{
			/* Set up the name of the program, as it will be
			 * displayed in error requesters.
			 */
			NewProgramName = AllocVec(strlen(WBStartup->sm_ArgList[0].wa_Name) + strlen(" ''") + strlen(str)+1,MEMF_ANY|MEMF_PUBLIC);
			if(NewProgramName != NULL)
				SPrintf(NewProgramName,"%s '%s'",WBStartup->sm_ArgList[0].wa_Name,str);
		}

		str = FindToolType(Icon->do_ToolTypes,"DEBUG");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"DEBUGLEVEL");

		if(str != NULL)
		{
			if(StrToLong(str,&number) == -1)
			{
				report_error("Invalid number '%s' for 'DEBUG' parameter.",str);
				goto out;
			}

			args.DebugLevel = &number;
		}

		str = FindToolType(Icon->do_ToolTypes,"DEBUGFILE");
		if(str != NULL)
			args.DebugFile = str;

		str = FindToolType(Icon->do_ToolTypes,"TZ");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"TIMEZONEOFFSET");

		if(str != NULL)
		{
			if(StrToLong(str,&tz_number) == -1)
			{
				report_error("Invalid number '%s' for 'TIMEZONEOFFSET' parameter.",str);
				goto out;
			}

			args.TimeZoneOffset = &tz_number;
		}

		str = FindToolType(Icon->do_ToolTypes,"DST");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"DSTOFFSET");

		if(str != NULL)
		{
			if(StrToLong(str,&dst_number) == -1)
			{
				report_error("Invalid number '%s' for 'DSTOFFSET' parameter.",str);
				goto out;
			}

			args.DSTOffset = &dst_number;
		}

		str = FindToolType(Icon->do_ToolTypes,"PROTOCOL");
		if(str == NULL)
		{
			if(GetVar("smbfs_protocol",env_protocol,sizeof(env_protocol),0) > 0)
				str = env_protocol;
		}

		args.Protocol = str;

		if(FindToolType(Icon->do_ToolTypes,"NETBIOS") != NULL)
			args.NetBIOSTransport = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"PREFERWRITERAW") != NULL)
			args.PreferWriteRaw = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"WRITEBEHIND") != NULL)
			args.WriteBehind = TRUE;

		if(FindToolType(Icon->do_ToolTypes,"PREFERREADRAW") != NULL)
			args.PreferReadRaw = TRUE;

		str = FindToolType(Icon->do_ToolTypes,"TRANSLATE");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"TRANSLATIONFILE");

		if(str != NULL)
		{
			args.TranslationFile = str;
		}
		else
		{
			str = FindToolType(Icon->do_ToolTypes,"UNICODE");
			if (str != NULL)
				args.Unicode = str;
			else if (FindToolType(Icon->do_ToolTypes,"CP437") != NULL)
				args.CP437 = TRUE;
			else if (FindToolType(Icon->do_ToolTypes,"CP850") != NULL)
				args.CP850 = TRUE;
		}

		str = FindToolType(Icon->do_ToolTypes,"CACHE");
		if(str == NULL)
			str = FindToolType(Icon->do_ToolTypes,"CACHESIZE");

		if(str != NULL)
		{
			if(StrToLong(str,&number) == -1)
			{
				report_error("Invalid number '%s' for 'CACHE' parameter.",str);
				goto out;
			}

			cache_size = number;
		}

		str = FindToolType(Icon->do_ToolTypes,"MAXTRANSMIT");
		if(str != NULL)
		{
			if(StrToLong(str,&number) == -1)
			{
				report_error("Invalid number '%s' for 'MAXTRANSMIT' parameter.",str);
				goto out;
			}

			max_transmit = number;
		}

		str = FindToolType(Icon->do_ToolTypes,"TIMEOUT");
		if(str != NULL)
		{
			if(StrToLong(str,&number) == -1 || number < 0)
			{
				report_error("Invalid number '%s' for 'TIMEOUT' parameter.",str);
				goto out;
			}

			timeout = number;
		}

		if(args.Service == NULL)
		{
			report_error("'SERVICE' parameter needs an argument.");
			goto out;
		}
	}
	else
	{
		/* Only input validation errors are reported below. */
		result = RETURN_ERROR;

		GetProgramName(program_name,sizeof(program_name));

		Parameters = ReadArgs(cmd_template,(LONG *)&args,NULL);
		if(Parameters == NULL)
		{
			PrintFault(IoErr(),FilePart(program_name));
			goto out;
		}

		if(args.Workgroup == NULL)
		{
			if(GetVar("smbfs_domain",env_workgroup_name,sizeof(env_workgroup_name),0) > 0 ||
			   GetVar("smbfs_workgroup",env_workgroup_name,sizeof(env_workgroup_name),0) > 0)
			{
				args.Workgroup = env_workgroup_name;
			}
		}

		if(args.UserName == NULL)
		{
			if(GetVar("smbfs_user",env_user_name,sizeof(env_user_name),0) > 0 ||
			   GetVar("smbfs_username",env_user_name,sizeof(env_user_name),0) > 0)
			{
				args.UserName = env_user_name;
			}
		}

		if(args.Password == NULL)
		{
			if(GetVar("smbfs_password",env_password,sizeof(env_password),0) > 0)
				args.Password = env_password;
		}

		if(args.Protocol == NULL)
		{
			if(GetVar("smbfs_protocol",env_protocol,sizeof(env_protocol),0) > 0)
				args.Protocol = env_protocol;
		}

		if(args.Service != NULL)
		{
			const TEXT * name = FilePart(program_name);

			/* Set up the name of the program, as it will be
			 * displayed in the proces status list.
			 */
			NewProgramName = AllocVec(strlen(name) + strlen(" ''") + strlen(args.Service)+1,MEMF_ANY|MEMF_PUBLIC);
			if(NewProgramName != NULL)
				SPrintf(NewProgramName,"%s '%s'",name,args.Service);
		}

		if(args.CacheSize != NULL)
			cache_size = (*args.CacheSize);

		if(args.MaxTransmit != NULL)
			max_transmit = (*args.MaxTransmit);

		if(args.Timeout != NULL && (*args.Timeout) >= 0)
			timeout = (*args.Timeout);
	}

	/* Use the default if no user name is given. */
	if(args.UserName == NULL)
		args.UserName = "GUEST";

	/* Use the default if no device or volume name is given. */
	if(args.DeviceName == NULL && args.VolumeName == NULL)
		args.DeviceName = "SMBFS";

	/* Restrict the command set which smbfs uses? */
	if(args.Protocol == NULL)
		args.Protocol = "NT1";

	if(Stricmp(args.Protocol,"NT1") != SAME && Stricmp(args.Protocol,"CORE") != SAME)
	{
		report_error("'PROTOCOL' parameter must be either 'NT1' or 'CORE'.");
		goto out;
	}

	/* Disable Unicode support for path names, etc.? */
	if(args.Unicode == NULL)
		args.Unicode = "ON";

	if(Stricmp(args.Unicode,"OFF") != SAME && Stricmp(args.Unicode,"ON") != SAME)
	{
		report_error("'UNICODE' parameter must be either 'ON' or 'OFF'.");
		goto out;
	}

	/* Code page based translation using a file disables
	 * the built-in CP437 and CP850 translation.
	 */
	if(args.TranslationFile != NULL)
		args.CP437 = args.CP850 = FALSE;
	else if (args.CP437)
		args.CP850 = FALSE;
	else if (args.CP850)
		args.CP437 = FALSE;

	/* Use one of the built-in code page translation tables? */
	if (args.CP437)
	{
		SHOWMSG("using code page 437 translation");

		memmove(map_amiga_to_smb_name,unicode_to_cp437,sizeof(unicode_to_cp437));
		memmove(map_smb_to_amiga_name,cp437_to_unicode,sizeof(cp437_to_unicode));

		TranslateNames = TRUE;
	}
	else if (args.CP850)
	{
		SHOWMSG("using code page 850 translation");

		memmove(map_amiga_to_smb_name,unicode_to_cp850,sizeof(unicode_to_cp850));
		memmove(map_smb_to_amiga_name,cp850_to_unicode,sizeof(cp850_to_unicode));

		TranslateNames = TRUE;
	}

	CaseSensitive = (BOOL)args.CaseSensitive;
	OmitHidden = (BOOL)args.OmitHidden;

	/* You don't need to provide a specific workgroup name. smbfs will
	 * work perfectly find with modern (and somewhat older) SMB implementations
	 * if the workgroup name does not match the server's workgroup name.
	 * But a workgroup name is still mandatory because it's required as part
	 * of the protocol which sets up the connection between client and
	 * server.
	 *
	 * It all boils down to this: if you don't choose a workgroup name,
	 * smbfs will use a default of "WORKGROUP".
	 */
	if(args.Workgroup == NULL)
	{
		strlcpy(env_workgroup_name,"WORKGROUP",sizeof(env_workgroup_name));
		args.Workgroup = env_workgroup_name;
	}

	#if DEBUG
	{
		if(args.DebugFile != NULL)
		{
			/* Try to append the output to an existing file. */
			debug_file = Open(args.DebugFile,MODE_OLDFILE);
			if(debug_file == (BPTR)NULL)
			{
				/* File does not exist? Then create a new file. */
				if(IoErr() == ERROR_OBJECT_NOT_FOUND)
				{
					debug_file = Open(args.DebugFile,MODE_NEWFILE);
					if(debug_file != (BPTR)NULL)
						ChangeMode(CHANGE_FH,debug_file,SHARED_LOCK);
				}
			}
			else
			{
				/* File exists; seek to the end of it. */
				Seek(debug_file,0,OFFSET_END);
			}

			close_debug_file = TRUE;
		}
		else
		{
			if(WBStartup == NULL)
				debug_file = Output();
		}

		SETDEBUGFILE(debug_file);
	}
	#endif /* DEBUG */

	/* Configure the debugging options. */
	SETPROGRAMNAME(FilePart(program_name));

	if(args.DebugLevel != NULL)
	{
		#if !DEBUG
		{
			if(WBStartup == NULL)
				report_error("This version of smbfs cannot create debug output.");
		}
		#endif /* !DEBUG */

		SETDEBUGLEVEL(*args.DebugLevel);
	}
	else
	{
		SETDEBUGLEVEL(0);
	}

	/* Enable SMB packet decoding, but only if not started from Workbench. */
	#if defined(DUMP_SMB)
	{
		LONG dump_smb_level = 0;

		if(args.DumpSMBLevel != NULL)
			dump_smb_level = (*args.DumpSMBLevel);

		if(args.DumpSMB && WBStartup == NULL)
			control_smb_dump(TRUE, dump_smb_level, (const char *)args.DumpSMBFile);
	}
	#else
	{
		if(WBStartup == NULL && (args.DumpSMBLevel != NULL || args.DumpSMB))
			report_error("This version of smbfs cannot create SMB debug output.");
	}
	#endif /* DUMP_SMB */

	D(("%s (%s)",VERS,DATE));

	if(setup(
		FilePart(program_name),
		args.Service,
		args.Workgroup,
		args.UserName,
		args.Password,
		args.ChangeCase,
		args.ClientName,
		args.ServerName,
		cache_size,
		max_transmit,
		timeout,
		args.TimeZoneOffset,
		args.DSTOffset,
		!args.NetBIOSTransport,	/* Use raw SMB transport instead of NetBIOS transport? */
		Stricmp(args.Unicode,"OFF") != SAME,
		Stricmp(args.Protocol,"CORE") == SAME,
		args.PreferWriteRaw,
		args.WriteBehind,
		args.PreferReadRaw,
		args.DeviceName,
		args.VolumeName,
		args.TranslationFile))
	{
		Quiet = args.Quiet;

		if(Locale != NULL)
			SHOWVALUE(Locale->loc_GMTOffset);

		file_system_handler(args.RaisePriority,args.DeviceName,args.VolumeName,args.Service);

		result = RETURN_WARN;
	}
	else
	{
		result = RETURN_ERROR;
	}

 out:

	#if DEBUG
	{
		D(("total amount of memory allocated = %lu", total_memory_allocated));
		D(("maximum amount of memory allocated = %lu", max_memory_allocated));
	}
	#endif /* DEBUG */

	#if defined(DUMP_SMB)
	{
		if(args.DumpSMB && WBStartup == NULL)
			control_smb_dump(FALSE, 0, NULL);
	}
	#endif /* DUMP_SMB */

	cleanup();

	if(close_debug_file && debug_file != (BPTR)NULL)
	{
		Close(debug_file);

		SETDEBUGFILE((BPTR)NULL);

		SETDEBUGLEVEL(0);
	}

	return(result);
}

/****************************************************************************/

static LONG VARARGS68K
LocalFPrintf(BPTR output, const TEXT * format, ...)
{
	va_list args;
	LONG result;

	if(output == ZERO)
		output = Output();

	#if defined(__amigaos4__)
	{
		va_startlinear(args,format);
		result = VFPrintf(output, format, va_getlinearva(args,APTR));
		va_end(args);
	}
	#else
	{
		va_start(args,format);
		result = VFPrintf(output, format, args);
		va_end(args);
	}
	#endif /* __amigaos4__ */

	return(result);
}

/****************************************************************************/

/* Obtain the descriptive text corresponding to an error number
 * that may have been generated by the TCP/IP stack, or by
 * the SMB POSIX error conversion code.
 */
STRPTR
posix_strerror(int error)
{
	STRPTR result;

	/* Is this one of our own error codes? */
	if(error >= error_end_of_file)
	{
		static const struct { int code; const char * message; } messages[] =
		{
			{ error_end_of_file,						"end of file" },
			{ error_invalid_netbios_session,			"invalid NetBIOS session" },
			{ error_message_exceeds_buffer_size,		"message exceeds buffer size" },
			{ error_invalid_buffer_format,				"invalid buffer format" },
			{ error_data_exceeds_buffer_size,			"data exceeds buffer size" },
			{ error_invalid_parameter_size,				"invalid parameter size" },
			{ error_check_smb_error,					"check SMB error class and code" },
			{ error_server_setup_incomplete,			"server setup incomplete" },
			{ error_server_connection_invalid,			"server connection invalid" },
			{ error_smb_message_signature_missing,		"SMB message signature missing" },
			{ error_smb_message_too_short,				"SMB message too short" },
			{ error_smb_message_invalid_command,		"SMB message invalid command" },
			{ error_smb_message_invalid_word_count,		"SMB message invalid word count" },
			{ error_smb_message_invalid_byte_count,		"SMB message invalid byte count" },
			{ error_looping_in_find_next,				"looping in find_next" },
			{ error_invalid_directory_size,				"invalid directory size" },
			{ error_session_request_failed,				"session request failed" },
			{ error_unsupported_dialect,				"unsupported dialect" },
			{ -1, NULL }
		};

		int i;

		result = "";

		for(i = 0 ; messages[i].code != -1 ; i++)
		{
			if(messages[i].code == error)
			{
				result = (STRPTR)messages[i].message;
				break;
			}
		}
	}
	else
	{
		struct TagItem tags[2];

		tags[0].ti_Tag	= SBTM_GETVAL(SBTC_ERRNOSTRPTR);
		tags[0].ti_Data	= error;
		tags[1].ti_Tag	= TAG_END;

		SocketBaseTagList(tags);

		result = (STRPTR)tags[0].ti_Data;
	}

	return(result);
}

/****************************************************************************/

/* Return the descriptive text associated with a host lookup failure code. */
STRPTR
host_strerror(int error)
{
	struct TagItem tags[2];
	STRPTR result;

	tags[0].ti_Tag	= SBTM_GETVAL(SBTC_HERRNOSTRPTR);
	tags[0].ti_Data	= error;
	tags[1].ti_Tag	= TAG_END;

	SocketBaseTagList(tags);

	result = (STRPTR)tags[0].ti_Data;

	return(result);
}

/****************************************************************************/

/* Compare two strings, either case sensitive or not
 * sensitive to the case of the letters. How this is
 * to be done is controlled by a global option. This
 * routine is called whenever two SMB file names are
 * to be compared.
 */
LONG
compare_names(const TEXT * a,const TEXT * b)
{
	LONG result;

	if(CaseSensitive)
		result = strcmp(a,b);
	else
		result = Stricmp(a,b);

	return(result);
}

/****************************************************************************/

/* Translate a string into all upper case characters. */
void
string_toupper(STRPTR s)
{
	TEXT c;

	while((c = (*s)) != '\0')
		(*s++) = ToUpper(c);
}

/****************************************************************************/

/* Prepare the accumulated list of error messages for display
 * and purge the contents of that list.
 */
static void
display_error_message_list(void)
{
	struct MinNode * last = NULL;
	struct MinNode * mn;
	TEXT * message = NULL;
	const TEXT * str;
	int size;

	/* Determine how much memory will have to be
	 * allocated to hold all the accumulated
	 * error messages.
	 */
	size = 0;

	for(mn = ErrorList.mlh_Head ;
	    mn->mln_Succ != NULL ;
	    mn = mn->mln_Succ)
	{
		last = mn;

		str = (TEXT *)(mn + 1);

		size += strlen(str)+1;
	}

	/* Allocate the memory for the messages, then
	 * copy them there.
	 */
	if(size > 0)
	{
		message = AllocVec(size,MEMF_ANY);
		if(message != NULL)
		{
			int message_len;
			int len;

			message_len = 0;

			for(mn = ErrorList.mlh_Head ;
			    mn->mln_Succ != NULL ;
			    mn = mn->mln_Succ)
			{
				str = (TEXT *)(mn + 1);
				len = strlen(str);

				memcpy(&message[message_len], str, len);
				message_len += len;

				if(mn != last)
					message[message_len++] = '\n';
			}

			message[message_len] = '\0';
		}
	}

	/* Purge the list. */
	while((mn = (struct MinNode *)RemHead((struct List *)&ErrorList)) != NULL)
		FreeVec(mn);

	/* Display the error messages. */
	if(message != NULL)
	{
		IntuitionBase = OpenLibrary("intuition.library",37);

		#if defined(__amigaos4__)
		{
			if(IntuitionBase != NULL)
			{
				IIntuition = (struct IntuitionIFace *)GetInterface(IntuitionBase, "main", 1, 0);
				if(IIntuition == NULL)
				{
					CloseLibrary(IntuitionBase);
					IntuitionBase = NULL;
				}
			}
		}
		#endif /* __amigaos4__ */

		if(IntuitionBase != NULL)
		{
			struct EasyStruct es;
			STRPTR title;

			memset(&es,0,sizeof(es));

			if(NewProgramName == NULL)
				title = WBStartup->sm_ArgList[0].wa_Name;
			else
				title = NewProgramName;

			es.es_StructSize	= sizeof(es);
			es.es_Title			= title;
			es.es_TextFormat	= message;
			es.es_GadgetFormat	= "OK";

			EasyRequestArgs(NULL,&es,NULL,NULL);
		}

		FreeVec(message);
	}

	#if defined(__amigaos4__)
	{
		if(IIntuition != NULL)
		{
			DropInterface((struct Interface *)IIntuition);
			IIntuition = NULL;
		}
	}
	#endif /* __amigaos4__ */

	CloseLibrary(IntuitionBase);
	IntuitionBase = NULL;
}

/* Add another error message to the list; the messages are
 * collected so that they may be displayed together when
 * necessary.
 */
static void
add_error_message(const TEXT * fmt,APTR args)
{
	int size;

	size = CVSPrintf(fmt,args);
	if(size > 0)
	{
		struct MinNode * mn;

		mn = AllocVec(sizeof(*mn) + size,MEMF_ANY|MEMF_PUBLIC);
		if(mn != NULL)
		{
			STRPTR msg = (STRPTR)(mn + 1);

			VSPrintf(msg,fmt,args);

			AddTail((struct List *)&ErrorList,(struct Node *)mn);
		}
	}
}

/****************************************************************************/

/* Report an error that has occured; if the program was not launched
 * from Shell, error messages will be accumulated for later display.
 */
void VARARGS68K
report_error(const TEXT * fmt,...)
{
	if(NOT Quiet)
	{
		va_list args;

		if(WBStartup != NULL)
		{
			#if defined(__amigaos4__)
			{
				va_startlinear(args,fmt);
				add_error_message(fmt,va_getlinearva(args,APTR));
				va_end(args);
			}
			#else
			{
				va_start(args,fmt);
				add_error_message(fmt,args);
				va_end(args);
			}
			#endif /* __amigaos4__ */
		}
		else
		{
			struct Process * this_process = (struct Process *)FindTask(NULL);
			TEXT program_name[MAX_FILENAME_LEN+1];
			BPTR output;

			GetProgramName(program_name,sizeof(program_name));

			if(this_process->pr_CES != ZERO)
				output = this_process->pr_CES;
			else
				output = Output();

			LocalFPrintf(output, "%s: ",FilePart(program_name));

			#if defined(__amigaos4__)
			{
				va_startlinear(args,fmt);
				VFPrintf(output, fmt, va_getlinearva(args,APTR));
				va_end(args);
			}
			#else
			{
				va_start(args,fmt);
				VFPrintf(output,fmt,args);
				va_end(args);
			}
			#endif /* __amigaos4__ */

			LocalFPrintf(output, "\n");
		}
	}
}

/****************************************************************************/

/* Release memory allocated from the global pool. */
void
free_memory(APTR address)
{
	if(address != NULL)
	{
		ULONG * mem = address;
		ULONG size = mem[-1];

		#if DEBUG
		{
			total_memory_allocated -= size;
			
			if(GETDEBUGLEVEL() > 0)
				memset(address,0xA3,size - sizeof(*mem));
		}
		#endif /* DEBUG */

		FreePooled(MemoryPool,&mem[-1],size);
	}
}

/* Allocate memory from the global pool. */
APTR
allocate_memory(LONG size)
{
	APTR result = NULL;

	if(size > 0)
	{
		ULONG * mem;

		size = (sizeof(*mem) + size + 7) & ~7UL;

		mem = AllocPooled(MemoryPool,size);
		if(mem != NULL)
		{
			(*mem++) = size;

			#if DEBUG
			{
				if(GETDEBUGLEVEL() > 0)
					memset(mem,0xA5,mem[-1] - sizeof(*mem));

				total_memory_allocated += size;
				if(max_memory_allocated < total_memory_allocated)
					max_memory_allocated = total_memory_allocated;
			}
			#endif /* DEBUG */

			result = mem;
		}
	}

	return(result);
}

/****************************************************************************/

/* Obtain the number of seconds to add to the current time
 * to translate local time into UTC.
 */
LONG
get_time_zone_delta(void)
{
	LONG seconds;

	if(OverrideLocaleTimeZone)
	{
		seconds = 60 * TimeZoneOffset;
	}
	else if (Locale != NULL)
	{
		/* The GMT offset actually is the number of minutes to add to
		 * the local time to yield Greenwich Mean Time. It is negative
		 * for all time zones east of the Greenwich meridian and
		 * positive for all time zones west of it.
		 */
		seconds = 60 * Locale->loc_GMTOffset;
	}
	else
	{
		seconds = 0;
	}

	D(("time zone offset: %ld + %ld = %ld",seconds,DSTOffset,seconds + DSTOffset));

	return(seconds + DSTOffset);
}

/****************************************************************************/

/* Obtain the current time, in standard Unix format, adjusted for the
 * local time zone.
 */
ULONG
get_current_time(void)
{
	struct timeval tv;
	ULONG result;

	GetSysTime((APTR)&tv);

	result = tv.tv_secs + UNIX_TIME_OFFSET + get_time_zone_delta();

	return(result);
}

/****************************************************************************/

/* Fill in a 'tm' type time specification with time information
 * corresponding to the number of seconds provided. Input is
 * in Unix format.
 */
void
seconds_to_tm(time_t seconds,struct tm * tm)
{
	struct ClockData clock_data;

	if(seconds < UNIX_TIME_OFFSET)
		seconds = 0;
	else
		seconds -= UNIX_TIME_OFFSET;

	Amiga2Date(seconds,&clock_data);

	memset(tm,0,sizeof(*tm));

	tm->tm_sec	= clock_data.sec;
	tm->tm_min	= clock_data.min;
	tm->tm_hour	= clock_data.hour;
	tm->tm_mday	= clock_data.mday;
	tm->tm_mon	= clock_data.month - 1;
	tm->tm_year	= clock_data.year - 1900;
}

/* Calculate the number of seconds that have passed since January 1st 1970
 * based upon the time specification provided. Output is in Unix format.
 */
time_t
tm_to_seconds(const struct tm * const tm)
{
	struct ClockData clock_data;
	time_t seconds;

	clock_data.sec		= tm->tm_sec;
	clock_data.min		= tm->tm_min;
	clock_data.hour		= tm->tm_hour;
	clock_data.mday		= tm->tm_mday;
	clock_data.month	= tm->tm_mon + 1;
	clock_data.year		= tm->tm_year + 1900;

	seconds = Date2Amiga(&clock_data) + UNIX_TIME_OFFSET;

	return(seconds);
}

/****************************************************************************/

struct FormatContext
{
	TEXT *	fc_Buffer;
	int		fc_Size;
};

/****************************************************************************/

static void ASM
CountChar(REG(a3,struct FormatContext * fc))
{
	fc->fc_Size++;
}

/* Count the number of characters SPrintf() would put into a string. */
static LONG
CVSPrintf(const TEXT * format_string,APTR args)
{
	struct FormatContext fc;

	fc.fc_Size = 0;

	RawDoFmt((STRPTR)format_string,args,(void (*)())CountChar,&fc);

	return(fc.fc_Size);
}

/****************************************************************************/

static void ASM
StuffChar(REG(d0,TEXT c),REG(a3,struct FormatContext * fc))
{
	(*fc->fc_Buffer++) = c;
}

static void
VSPrintf(STRPTR buffer, const TEXT * formatString, APTR args)
{
	struct FormatContext fc;

	fc.fc_Buffer = buffer;

	RawDoFmt(formatString,args,(void (*)())StuffChar,&fc);
}

/****************************************************************************/

/* Format a string for output. */
void VARARGS68K
SPrintf(STRPTR buffer, const TEXT * formatString,...)
{
	va_list varArgs;

	#if defined(__amigaos4__)
	{
		va_startlinear(varArgs,formatString);
		VSPrintf(buffer,formatString,va_getlinearva(varArgs,APTR));
		va_end(varArgs);
	}
	#else
	{
		va_start(varArgs,formatString);
		VSPrintf(buffer,formatString,varArgs);
		va_end(varArgs);
	}
	#endif /* __amigaos4__ */
}

/****************************************************************************/

/* NetBIOS broadcast name query code courtesy of Christopher R. Hertel.
 * Thanks very much, Chris!
 */
struct addr_entry
{
	unsigned short flags;
	unsigned char address[4];
};

struct nmb_header
{
	unsigned short name_trn_id;
	unsigned short flags;
	unsigned short qdcount;
	unsigned short ancount;
	unsigned short nscount;
	unsigned short arcount;
};

static UBYTE *
L1_Encode(UBYTE * dst, const UBYTE * name, const UBYTE pad, const UBYTE sfx)
{
	int i = 0;
	int j = 0;
	int k;

	while(('\0' != name[i]) && (i < 15))
	{
		k = ToUpper(name[i]);
		i++;
		dst[j++] = 'A' + ((k & 0xF0) >> 4);
		dst[j++] = 'A' + (k & 0x0F);
	}

	i = 'A' + ((pad & 0xF0) >> 4);
	k = 'A' + (pad & 0x0F);

	while(j < 30)
	{
		dst[j++] = i;
		dst[j++] = k;
	}

	dst[30] = 'A' + ((sfx & 0xF0) >> 4);
	dst[31] = 'A' + (sfx & 0x0F);
	dst[32] = '\0';

	return(dst);
}

static int
L2_Encode(UBYTE * dst, const UBYTE * name, const UBYTE pad, const UBYTE sfx, const UBYTE * scope)
{
	int lenpos;
	int i;
	int j;

	if(NULL == L1_Encode(&dst[1], name, pad, sfx))
		return(-1);

	dst[0] = 0x20;
	lenpos = 33;

	if('\0' != (*scope))
	{
		do
		{
			for(i = 0, j = (lenpos + 1);
			    ('.' != scope[i]) && ('\0' != scope[i]);
			    i++, j++)
			{
				dst[j] = ToUpper(scope[i]);
			}

			dst[lenpos] = (UBYTE)i;
			lenpos += i + 1;
			scope += i;
		}
		while('.' == (*scope++));

		dst[lenpos] = '\0';
	}

	return(lenpos + 1);
}

int
BroadcastNameQuery(const char *name, const char *scope, UBYTE *address)
{
	static const UBYTE header[12] =
	{
		0x07, 0xB0,	/* 1964 == 0x07B0. */
		0x01, 0x10,	/* Binary 0 0000 0010001 0000 */
		0x00, 0x01,	/* One name query. */
		0x00, 0x00,	/* Zero answers. */
		0x00, 0x00,	/* Zero authorities. */
		0x00, 0x00	/* Zero additional. */
	};

	static const UBYTE query_tail[4] =
	{
		0x00, 0x20,
		0x00, 0x01
	};

	struct timeval tv;
	fd_set read_fds;
	int sock_fd;
	int option_true = 1;
	struct sockaddr_in sox;
	struct nmb_header nmb_header;
	UBYTE buffer[512];
	int total_len;
	int i,n;
	int result;
	struct servent * s;

	ENTER();

	sock_fd = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
	if(sock_fd < 0)
	{
		SHOWMSG("couldn't get the socket");
		result = errno;
		goto out;
	}

	if(setsockopt(sock_fd, SOL_SOCKET, SO_BROADCAST, &option_true, sizeof(option_true)) < 0)
	{
		SHOWMSG("couldn't enable the broadcast option");
		result = errno;
		goto out;
	}

	sox.sin_family = AF_INET;
	sox.sin_addr.s_addr = htonl(0xFFFFFFFF);

	s = getservbyname("netbios-ns","udp");
	if(s != NULL)
		sox.sin_port = s->s_port;
	else
		sox.sin_port = htons(137);

	memcpy(buffer, header, (total_len = sizeof(header)));

	n = L2_Encode(&buffer[total_len], name, ' ', '\0', scope);
	if(n < 0)
	{
		SHOWMSG("name encoding failed");
		result = EINVAL;
		goto out;
	}

	total_len += n;
	memcpy(&buffer[total_len], query_tail, sizeof(query_tail));
	total_len += sizeof(query_tail);

	result = ENOENT;
	n = 0;

	/* Send the query packet; retry five times with a one second
	 * delay in between.
	 */
	for(i = 0 ; i < 5 ; i++)
	{
		if(sendto(sock_fd, (void *) buffer, total_len, 0, (struct sockaddr *)&sox, sizeof(struct sockaddr_in)) < 0)
		{
			SHOWMSG("could not send the packet");
			result = errno;
			goto out;
		}

		/* Wait for a response to arrive. */
		tv.tv_secs = 1;
		tv.tv_micro = 0;

		FD_ZERO(&read_fds);
		FD_SET(sock_fd,&read_fds);

		if(WaitSelect(sock_fd+1, &read_fds, NULL, NULL, &tv, NULL) > 0)
		{
			n = recv(sock_fd, buffer, sizeof(buffer), 0);
			if(n < 0)
			{
				SHOWMSG("could not pick up the response packet");
				result = errno;
				goto out;
			}
			else if (n > 0)
			{
				break;
			}
		}
	}

	/* Did we get anything at all? */
	if(n > (int)sizeof(nmb_header))
	{
		/* Check whether the query was successful. */
		memcpy(&nmb_header, buffer, sizeof(nmb_header));
		if((nmb_header.flags & 0xF) == OK)
		{
			/* Find the NB/IP fields which directly follow
			 * the name.
			 */
			for(i = sizeof(header) + strlen(&buffer[sizeof(header)])+1 ; i < n - (int)sizeof(query_tail) ; i++)
			{
				if(memcmp(&buffer[i], query_tail, sizeof(query_tail)) == SAME)
				{
					int start;

					/* This should be the start of the interesting bits;
					 * we skip the NB/IP fields and the TTL field.
					 */
					start = i + sizeof(query_tail) + sizeof(long);
					if(start < n)
					{
						unsigned short read_len;
						struct addr_entry addr_entry;

						/* This should be the read length. */
						memcpy(&read_len, &buffer[start], 2);

						/* Is there any useful and readable data attached? */
						if(read_len >= sizeof(addr_entry) &&
						   start + (int)sizeof(read_len) + (int)sizeof(addr_entry) <= n)
						{
							/* Copy a single address entry; this should be
							 * just the one we need.
							 */
							memcpy(&addr_entry, &buffer[start + sizeof(read_len)], sizeof(addr_entry));

							/* Copy the address field (IPv4 only). */
							memcpy(address, addr_entry.address, 4);

							result = 0;
						}
					}

					break;
				}
			}
		}
	}

out:

	if(sock_fd >= 0)
		CloseSocket(sock_fd);

	RETURN(result);
	return(result);
}

/****************************************************************************/

/* Send a disk change notification message which will be picked up
 * by all applications that listen for this kind of event, e.g.
 * Workbench.
 */
static void
send_disk_change_notification(ULONG class)
{
	struct IOStdReq * input_request = NULL;
	struct MsgPort * input_port;
	struct InputEvent ie;

	ENTER();

	input_port = CreateMsgPort();
	if(input_port == NULL)
		goto out;

	input_request = (struct IOStdReq *)CreateIORequest(input_port,sizeof(*input_request));
	if(input_request == NULL)
		goto out;

	if(OpenDevice("input.device",0,(struct IORequest *)input_request,0) != OK)
		goto out;

	memset(&ie,0,sizeof(ie));

	ie.ie_Class		= class;
	ie.ie_Qualifier	= IEQUALIFIER_MULTIBROADCAST;

	GetSysTime(&ie.ie_TimeStamp);

	input_request->io_Command	= IND_WRITEEVENT;
	input_request->io_Data		= &ie;
	input_request->io_Length	= sizeof(ie);

	DoIO((struct IORequest *)input_request);

 out:

	if(input_request != NULL)
	{
		if(input_request->io_Device != NULL)
			CloseDevice((struct IORequest *)input_request);

		DeleteIORequest((struct IORequest *)input_request);
	}

	DeleteMsgPort(input_port);

	LEAVE();
}

/****************************************************************************/

/* Find the file node corresponding to a given name,
 * skipping a particular entry if necessary.
 */
static struct FileNode *
find_file_node(const TEXT * name,struct FileNode * skip)
{
	struct FileNode * result = NULL;
	struct FileNode * fn;

	for(fn = (struct FileNode *)FileList.mlh_Head ;
	    fn->fn_MinNode.mln_Succ != NULL ;
	    fn = (struct FileNode *)fn->fn_MinNode.mln_Succ)
	{
		if(fn != skip && compare_names(name,fn->fn_FullName) == SAME)
		{
			result = fn;
			break;
		}
	}

	return(result);
}

/* Find the lock node corresponding to a given name,
 * skipping a particular entry if necessary.
 */
static struct LockNode *
find_lock_node(const TEXT * name,struct LockNode * skip)
{
	struct LockNode * result = NULL;
	struct LockNode * ln;

	for(ln = (struct LockNode *)LockList.mlh_Head ;
	    ln->ln_MinNode.mln_Succ != NULL ;
	    ln = (struct LockNode *)ln->ln_MinNode.mln_Succ)
	{
		if(ln != skip && compare_names(name,ln->ln_FullName) == SAME)
		{
			result = ln;
			break;
		}
	}

	return(result);
}

/* Check whether a new reference to be made to a named
 * file will cause a conflict of access modes. No two
 * files and locks may refer to the same object if
 * either of these references is made in exclusive
 * mode. This is the case which this function is
 * trying to avoid.
 */
static int
check_access_mode_collision(const TEXT * name,LONG mode)
{
	int error = ERROR_OBJECT_IN_USE;
	struct LockNode * ln;
	struct FileNode * fn;

	ENTER();

	D(("name = '%s'", escape_name(name)));

	fn = find_file_node(name,NULL);
	if(fn != NULL)
	{
		if(mode != SHARED_LOCK || fn->fn_Mode != SHARED_LOCK)
		{
			D(("collides with '%s'",escape_name(fn->fn_FullName)));
			goto out;
		}
	}

	ln = find_lock_node(name,NULL);
	if(ln != NULL)
	{
		if(mode != SHARED_LOCK || ln->ln_FileLock.fl_Access != SHARED_LOCK)
		{
			D(("collides with '%s'",escape_name(ln->ln_FullName)));
			goto out;
		}
	}

	error = OK;

 out:

	RETURN(error);
	return(error);
}

/* Find out whether there already exists a reference to a
 * certain file or directory.
 */
static int
name_already_in_use(const TEXT * name)
{
	int error;

	if(find_file_node(name,NULL) != NULL || find_lock_node(name,NULL) != NULL)
		error = ERROR_OBJECT_IN_USE;
	else
		error = OK;

	return(error);
}

/* Check whether an Amiga file name uses special characters which
 * should be avoided when used with the SMB file sharing protocol.
 */
static BOOL
is_reserved_name(const TEXT * name)
{
	BOOL result = TRUE;
	TEXT c;

	/* Disallow "." and "..". */
	if(name[0] == '.' && (name[1] == '\0' || (name[1] == '.' && name[2] == '\0')))
		goto out;

	/* Disallow the use of the backslash in file names. */
	while((c = (*name++)) != '\0')
	{
		if(c == SMB_PATH_SEPARATOR)
			goto out;
	}

	result = FALSE;

 out:

	return(result);
}

/****************************************************************************/

/* Convert a POSIX error code into an AmigaDOS error code. */
static LONG
map_errno_to_ioerr(int error)
{
	/* Not all of these mappings make good sense; bear in mind that
	 * POSIX covers more than a hundred different error codes
	 * whereas with AmigaDOS we're stranded with a measly 48...
	 */
	static const int map_posix_to_amigados[][2] =
	{
		{ E2BIG,			ERROR_TOO_MANY_ARGS },			/* Argument list too long */
		{ EACCES,			ERROR_READ_PROTECTED },			/* Permission denied */
		{ EADDRINUSE,		ERROR_OBJECT_IN_USE },			/* Address already in use */
		{ EADDRNOTAVAIL,	ERROR_DIR_NOT_FOUND },			/* Can't assign requested address */
		{ EAFNOSUPPORT,		ERROR_NOT_IMPLEMENTED },		/* Address family not supported by protocol family */
		{ EAGAIN, 			ERROR_LOCK_TIMEOUT },			/* Resource temporarily unavailable */
		{ EBADF,			ERROR_INVALID_LOCK },			/* Bad file descriptor */
		{ EBUSY,			ERROR_OBJECT_IN_USE },			/* Device busy */
		{ ECONNABORTED,		ERROR_DIR_NOT_FOUND },			/* Software caused connection abort */
		{ ECONNREFUSED,		ERROR_OBJECT_IN_USE },			/* Connection refused */
		{ ECONNRESET,		ERROR_DIR_NOT_FOUND },			/* Connection reset by peer */
		{ EDEADLK,			ERROR_READ_PROTECTED },			/* Resource deadlock avoided */
		{ EDESTADDRREQ,		ERROR_REQUIRED_ARG_MISSING },	/* Destination address required */
		{ EDQUOT,			ERROR_DISK_FULL },				/* Disc quota exceeded */
		{ EEXIST,			ERROR_OBJECT_EXISTS },			/* File exists */
		{ EFAULT,			ERROR_BAD_NUMBER },				/* Bad address */
		{ EFBIG,			ERROR_OBJECT_IN_USE },			/* File too large */
		{ EHOSTDOWN,		ERROR_DIR_NOT_FOUND },			/* Host is down */
		{ EHOSTUNREACH,		ERROR_DIR_NOT_FOUND },			/* No route to host */
		{ EINTR,			ERROR_BREAK },					/* Interrupted system call */
		{ EINVAL,			ERROR_BAD_NUMBER },				/* Invalid argument */
		{ EIO,				ERROR_OBJECT_IN_USE },			/* Input/output error */
		{ EISCONN,			ERROR_OBJECT_IN_USE },			/* Socket is already connected */
		{ EISDIR,			ERROR_OBJECT_WRONG_TYPE },		/* Is a directory */
		{ ELOOP,			ERROR_TOO_MANY_LEVELS },		/* Too many levels of symbolic links */
		{ EMFILE,			ERROR_NO_FREE_STORE },			/* Too many open files */
		{ EMLINK,			ERROR_TOO_MANY_LEVELS },		/* Too many links */
		{ EMSGSIZE,			ERROR_LINE_TOO_LONG },			/* Message too long */
		{ ENAMETOOLONG,		ERROR_LINE_TOO_LONG },			/* File name too long */
		{ ENETDOWN,			ERROR_DIR_NOT_FOUND },			/* Network is down */
		{ ENETRESET,		ERROR_DIR_NOT_FOUND },			/* Network dropped connection on reset */
		{ ENETUNREACH,		ERROR_DIR_NOT_FOUND },			/* Network is unreachable */
		{ ENFILE,			ERROR_NO_FREE_STORE },			/* Too many open files in system */
		{ ENOBUFS,			ERROR_BUFFER_OVERFLOW },		/* No buffer space available */
		{ ENODEV,			ERROR_OBJECT_WRONG_TYPE },		/* Operation not supported by device */
		{ ENOENT,			ERROR_OBJECT_NOT_FOUND },		/* No such file or directory */
		{ ENOLCK,			ERROR_NOT_IMPLEMENTED },		/* no locks available */
		{ ENOMEM,			ERROR_NO_FREE_STORE },			/* Cannot allocate memory */
		{ ENOPROTOOPT,		ERROR_NOT_IMPLEMENTED },		/* Protocol not available */
		{ ENOSPC,			ERROR_DISK_FULL },				/* No space left on device */
		{ ENOTBLK,			ERROR_OBJECT_WRONG_TYPE },		/* Block device required */
		{ ENOTCONN,			ERROR_OBJECT_WRONG_TYPE },		/* Socket is not connected */
		{ ENOTDIR,			ERROR_OBJECT_WRONG_TYPE },		/* Not a directory */
		{ ENOTEMPTY,		ERROR_DIRECTORY_NOT_EMPTY },	/* Directory not empty */
		{ ENOTSOCK,			ERROR_OBJECT_WRONG_TYPE },		/* Socket operation on non-socket */
		{ ENXIO,			ERROR_OBJECT_NOT_FOUND },		/* No such device or address */
		{ EOPNOTSUPP,		ERROR_NOT_IMPLEMENTED },		/* Operation not supported */
		{ EPERM,			ERROR_READ_PROTECTED },			/* Operation not permitted */
		{ EPFNOSUPPORT,		ERROR_NOT_IMPLEMENTED },		/* Protocol family not supported */
		{ EPROCLIM,			ERROR_TASK_TABLE_FULL },		/* Too many processes */
		{ EPROTONOSUPPORT,	ERROR_NOT_IMPLEMENTED },		/* Protocol not supported */
		{ EPROTOTYPE,		ERROR_BAD_TEMPLATE },			/* Protocol wrong type for socket */
		{ ERANGE,			ERROR_BAD_NUMBER },				/* Numerical result out of range */
		{ EROFS,			ERROR_WRITE_PROTECTED },		/* Read-only file system */
		{ ESHUTDOWN,		ERROR_INVALID_LOCK },			/* Can't send after socket shutdown */
		{ ESOCKTNOSUPPORT,	ERROR_NOT_IMPLEMENTED },		/* Socket type not supported */
		{ ESPIPE,			ERROR_SEEK_ERROR },				/* Illegal seek */
		{ ESRCH,			ERROR_OBJECT_NOT_FOUND },		/* No such process */
		{ ETXTBSY,			ERROR_OBJECT_IN_USE },			/* Text file busy */
		{ EUSERS,			ERROR_TASK_TABLE_FULL },		/* Too many users */
		{ EXDEV,			ERROR_NOT_IMPLEMENTED },		/* Cross-device link */

		{ error_invalid_netbios_session,			ERROR_BUFFER_OVERFLOW },
		{ error_message_exceeds_buffer_size,		ERROR_BUFFER_OVERFLOW },
		{ error_invalid_buffer_format,				ERROR_BAD_NUMBER },
		{ error_data_exceeds_buffer_size,			ERROR_BUFFER_OVERFLOW },
		{ error_invalid_parameter_size,				ERROR_BAD_NUMBER },
		{ error_server_setup_incomplete,			ERROR_INVALID_COMPONENT_NAME },
		{ error_server_connection_invalid,			ERROR_INVALID_COMPONENT_NAME },
		{ error_smb_message_signature_missing,		ERROR_BAD_STREAM_NAME },
		{ error_smb_message_too_short,				ERROR_BAD_STREAM_NAME },
		{ error_smb_message_invalid_command,		ERROR_BAD_STREAM_NAME },
		{ error_smb_message_invalid_word_count,		ERROR_BAD_STREAM_NAME },
		{ error_smb_message_invalid_byte_count,		ERROR_BAD_STREAM_NAME },
		{ error_looping_in_find_next,				ERROR_TOO_MANY_LEVELS },
		{ error_invalid_directory_size,				ERROR_BAD_NUMBER },
		{ error_session_request_failed,				ERROR_INVALID_COMPONENT_NAME },
		{ error_unsupported_dialect,				ERROR_BAD_NUMBER },

		{ -1,				-1 }
	};

	#if DEBUG
	int original_error = error;
	#endif /* DEBUG */

	LONG result = ERROR_ACTION_NOT_KNOWN;
	int i;

	ENTER();

	/* Try our best to translate the SMB error class and code into a POSIX
	 * error code...
	 */
	if(error == error_check_smb_error)
	{
		int error_class	= ((struct smb_server *)ServerData)->rcls;
		int error_code	= ((struct smb_server *)ServerData)->err;

		error = smb_errno(error_class, error_code);
	}

	for(i = 0 ; map_posix_to_amigados[i][0] != -1 ; i++)
	{
		if(map_posix_to_amigados[i][0] == error)
		{
			result = map_posix_to_amigados[i][1];
			break;
		}
	}

	#if DEBUG
	{
		TEXT amigados_error_text[256];

		Fault(result,NULL,amigados_error_text,sizeof(amigados_error_text));

		if(original_error == error_check_smb_error)
		{
			int error_class	= ((struct smb_server *)ServerData)->rcls;
			int error_code	= ((struct smb_server *)ServerData)->err;
			char * smb_class_name;
			char * smb_code_text;

			smb_translate_error_class_and_code(error_class,error_code,&smb_class_name,&smb_code_text);

			LOG(("Translated SMB %ld/%ld (%s/%s) -> POSIX %ld (%s) -> AmigaDOS error %ld (%s)\n", error_class, error_code, smb_class_name, smb_code_text, error, posix_strerror(error), result, amigados_error_text));
		}
		else
		{
			LOG(("Translated POSIX %ld (%s) -> AmigaDOS error %ld (%s)\n", error, posix_strerror(error), result, amigados_error_text));
		}
	}
	#endif /* DEBUG */

	RETURN(result);
	return(result);
}

/****************************************************************************/

/* Check if the name for an AmigaDOS device or volume is not too short,
 * not too long and does not contain unprintable/unsuitable characters.
 */
static BOOL
is_valid_device_name(const TEXT * name, int len)
{
	BOOL result = FALSE;
	int i, c;

	if(len <= 0 || len > 255)
		goto out;

	for(i = 0 ; i < len ; i++)
	{
		c = name[i];

		if(c == '/' || c == ':' || (c < ' ' && c != '\t') || (128 <= c && c < 160))
			goto out;
	}

	result = TRUE;

 out:

	return(result);
}

/****************************************************************************/

/* Check if a file name is right and proper for AmigaDOS use,
 * which excludes the use unprintable characters, the path
 * delimiters ':' and '/', but also the SMB path delimeter
 * character '\'.
 *
 * Returns ERROR_INVALID_COMPONENT_NAME if the name is
 * unsuitable, 0 otherwise.
 */
static int
validate_amigados_file_name(const TEXT * name,int len)
{
	int error = ERROR_INVALID_COMPONENT_NAME;
	int i, c;

	if(len <= 0 || len > 255)
		goto out;

	for(i = 0 ; i < len ; i++)
	{
		c = name[i];

		/* This should be a printable character and none of
		 * the characters reserved by the file system which
		 * should not appear in a file/directory name.
		 */
		if(c == '/' || c == ':' || c == SMB_PATH_SEPARATOR || (c < ' ' && c != '\t') || (128 <= c && c < 160))
			goto out;
	}

	error = OK;

 out:

	return(error);
}

/****************************************************************************/

/* Remove a DosList entry using the proper protocols. Note that
 * this function can fail!
 */
static BOOL
really_remove_dosentry(struct DosList * entry)
{
	struct DosPacket * dp;
	struct Message * mn;
	struct MsgPort * port;
	struct DosList * dl;
	BOOL result = FALSE;
	int kind,i;

	ENTER();

	if(entry->dol_Type == DLT_DEVICE)
	{
		D(("removing '%b' (device)", entry->dol_Name));
		kind = LDF_DEVICES;
	}
	else
	{
		D(("removing '%b' (volume)", entry->dol_Name));
		kind = LDF_VOLUMES;
	}

	port = entry->dol_Task;

	for(i = 0 ; i < 100 ; i++)
	{
		dl = AttemptLockDosList(LDF_WRITE|kind);
		if(((ULONG)dl) <= 1)
			dl = NULL;

		if(dl != NULL)
		{
			D(("doslist is locked; removing '%b' for good", entry->dol_Name));

			RemDosEntry(entry);

			UnLockDosList(LDF_WRITE|kind);

			result = TRUE;

			break;
		}

		while((mn = GetMsg(port)) != NULL)
		{
			SHOWMSG("returning pending packet");

			dp = (struct DosPacket *)mn->mn_Node.ln_Name;

			ReplyPkt(dp,(dp->dp_Action == ACTION_READ_LINK) ? -1 : DOSFALSE,ERROR_ACTION_NOT_KNOWN);
		}

		Delay(TICKS_PER_SECOND / 10);
	}

	if(NOT result)
		SHOWMSG("that didn't work");

	RETURN(result);
	return(result);
}

/****************************************************************************/

/* Release all resources allocated by the setup() routine. */
static void
cleanup(void)
{
	BOOL send_disk_change = FALSE;

	ENTER();

	/* If any errors have cropped up, display them now before
	 * we call it quits.
	 */
	display_error_message_list();

	if(NewProgramName != NULL)
	{
		FreeVec(NewProgramName);
		NewProgramName = NULL;
	}

	if(Parameters != NULL)
	{
		FreeArgs(Parameters);
		Parameters = NULL;
	}

	if(Icon != NULL)
	{
		FreeDiskObject(Icon);
		Icon = NULL;
	}

	if(ServerData != NULL)
	{
		smba_disconnect(ServerData);
		ServerData = NULL;
	}

	if(DeviceNode != NULL)
	{
		if(DeviceNodeAdded)
		{
			SHOWMSG("removing the device node");

			if(really_remove_dosentry(DeviceNode))
			{
				SHOWMSG("freeing the device node");
				FreeDosEntry(DeviceNode);
			}
			else
			{
				SHOWMSG("that didn't work.");
			}
		}
		else
		{
			FreeDosEntry(DeviceNode);
		}

		DeviceNode = NULL;
	}

	if(VolumeNode != NULL)
	{
		if(VolumeNodeAdded)
		{
			SHOWMSG("removing the volume node");

			if(really_remove_dosentry(VolumeNode))
			{
				SHOWMSG("freeing the volume node");
				FreeDosEntry(VolumeNode);

				send_disk_change = TRUE;
			}
			else
			{
				SHOWMSG("that didn't work.");
			}
		}
		else
		{
			FreeDosEntry(VolumeNode);
		}

		VolumeNode = NULL;
	}

	if(FileSystemPort != NULL)
	{
		struct DosPacket * dp;
		struct Message * mn;

		SHOWMSG("returning all pending packets");

		/* Return all queued packets; there should be none, though. */
		while((mn = GetMsg(FileSystemPort)) != NULL)
		{
			dp = (struct DosPacket *)mn->mn_Node.ln_Name;

			ReplyPkt(dp,(dp->dp_Action == ACTION_READ_LINK) ? -1 : DOSFALSE,ERROR_ACTION_NOT_KNOWN);
		}

		SHOWMSG("done");

		DeleteMsgPort(FileSystemPort);
		FileSystemPort = NULL;
	}

	if(WBStartup == NULL && send_disk_change)
	{
		SHOWMSG("sending a disk removed event");
		send_disk_change_notification(IECLASS_DISKREMOVED);
	}

	SHOWMSG("closing libraries and devices...");

	#if defined(__amigaos4__)
	{
		if(ITimer != NULL)
		{
			DropInterface((struct Interface *)ITimer);
			ITimer = NULL;
		}
	}
	#endif /* __amigaos4__ */

	if(TimerBase != NULL)
	{
		CloseDevice((struct IORequest *)&TimerRequest);
		TimerBase = NULL;
	}

	#if defined(__amigaos4__)
	{
		if(ISocket != NULL)
		{
			DropInterface((struct Interface *)ISocket);
			ISocket = NULL;
		}
	}
	#endif /* __amigaos4__ */

	if(SocketBase != NULL)
	{
		CloseLibrary(SocketBase);
		SocketBase = NULL;
	}

	#if defined(__amigaos4__)
	{
		if(IIcon != NULL)
		{
			DropInterface((struct Interface *)IIcon);
			IIcon = NULL;
		}
	}
	#endif /* __amigaos4__ */

	if(IconBase != NULL)
	{
		CloseLibrary(IconBase);
		IconBase = NULL;
	}

	if(Locale != NULL)
	{
		CloseLocale(Locale);
		Locale = NULL;
	}

	#if defined(__amigaos4__)
	{
		if(ILocale != NULL)
		{
			DropInterface((struct Interface *)ILocale);
			ILocale = NULL;
		}
	}
	#endif /* __amigaos4__ */

	if(LocaleBase != NULL)
	{
		CloseLibrary(LocaleBase);
		LocaleBase = NULL;
	}

	if(MemoryPool != NULL)
	{
		DeletePool(MemoryPool);
		MemoryPool = NULL;
	}

	LEAVE();
}

/* Allocate all the necessary resources to get going. */
static BOOL
setup(
	const TEXT *	program_name,
	const TEXT *	service,
	const TEXT *	workgroup,
	const TEXT *	username,
	STRPTR			opt_password,
	BOOL			opt_changecase,
	const TEXT *	opt_clientname,
	const TEXT *	opt_servername,
	int				opt_cachesize,
	int				opt_max_transmit,
	int				opt_timeout,
	LONG *			opt_time_zone_offset,
	LONG *			opt_dst_offset,
	BOOL			opt_raw_smb,
	BOOL			opt_unicode,
	BOOL			opt_prefer_core_protocol,
	BOOL			opt_prefer_write_raw,
	BOOL			opt_write_behind,
	BOOL			opt_prefer_read_raw, 
	const TEXT *	device_name,
	const TEXT *	volume_name,
	const TEXT *	translation_file)
{
	BOOL result = FALSE;
	struct DosList * dl;
	int error = 0;
	int smb_error_class = 0, smb_error = 0;
	const TEXT * actual_volume_name;
	int actual_volume_name_len;
	TEXT name[MAX_FILENAME_LEN+1];
	BOOL device_exists = FALSE;
	int len,i;

	ENTER();

	NewList((struct List *)&FileList);
	NewList((struct List *)&LockList);

	MemoryPool = CreatePool(MEMF_ANY|MEMF_PUBLIC,4096,4096);
	if(MemoryPool == NULL)
	{
		report_error("Could not create memory pool.");
		goto out;
	}

	LocaleBase = OpenLibrary("locale.library",38);

	#if defined(__amigaos4__)
	{
		if(LocaleBase != NULL)
		{
			ILocale = (struct LocaleIFace *)GetInterface(LocaleBase, "main", 1, 0);
			if(ILocale == NULL)
			{
				CloseLibrary(LocaleBase);
				LocaleBase = NULL;
			}
		}
	}
	#endif /* __amigaos4__ */

	if(LocaleBase != NULL)
		Locale = OpenLocale(NULL);

	if(opt_time_zone_offset != NULL)
	{
		TimeZoneOffset			= -(*opt_time_zone_offset);
		OverrideLocaleTimeZone	= TRUE;

		SHOWVALUE(TimeZoneOffset);
	}
	else
	{
		if(Locale != NULL)
			SHOWVALUE(Locale->loc_GMTOffset);
	}

	if(opt_dst_offset != NULL)
	{
		DSTOffset = -60 * (*opt_dst_offset);

		SHOWVALUE(DSTOffset);
	}

	memset(&TimerRequest,0,sizeof(TimerRequest));

	if(OpenDevice(TIMERNAME,UNIT_VBLANK,(struct IORequest *)&TimerRequest,0) != OK)
	{
		report_error("Could not open 'timer.device'.");
		goto out;
	}

	TimerBase = (struct Library *)TimerRequest.tr_node.io_Device;

	#if defined(__amigaos4__)
	{
		if(TimerBase != NULL)
		{
			ITimer = (struct TimerIFace *)GetInterface(TimerBase, "main", 1, 0);
			if(ITimer == NULL)
			{
				report_error("Could not open 'timer.device'.");
				goto out;
			}
		}
	}
	#endif /* __amigaos4__ */

	SocketBase = OpenLibrary("bsdsocket.library",3);

	#if defined(__amigaos4__)
	{
		if(SocketBase != NULL)
		{
			ISocket = (struct SocketIFace *)GetInterface(SocketBase, "main", 1, 0);
			if(ISocket == NULL)
			{
				CloseLibrary(SocketBase);
				SocketBase = NULL;
			}
		}
	}
	#endif /* __amigaos4__ */

	if(SocketBase == NULL)
	{
		report_error("Could not open 'bsdsocket.library' V3; TCP/IP stack not running?");
		goto out;
	}

	error = SocketBaseTags(
		SBTM_SETVAL(SBTC_ERRNOPTR(sizeof(errno))),	&errno,
		SBTM_SETVAL(SBTC_HERRNOLONGPTR),			&h_errno,
		SBTM_SETVAL(SBTC_LOGTAGPTR),				program_name,
		SBTM_SETVAL(SBTC_BREAKMASK),				SIGBREAKF_CTRL_C,
	TAG_END);
	if(error != OK)
	{
		report_error("Could not initialize 'bsdsocket.library' (%ld, %s).",error,posix_strerror(error));
		goto out;
	}

	if(opt_changecase)
	{
		for(i = 0 ; i < (int)strlen(opt_password) ; i++)
			opt_password[i] = ToUpper(opt_password[i]);
	}

	/* Read the translation file, if possible. */
	if(translation_file != NULL)
	{
		STRPTR msg = NULL;
		BPTR file;

		error = OK;

		D(("using translation file '%s'",translation_file));

		file = Open(translation_file,MODE_OLDFILE);
		if(file != ZERO)
		{
			if(Read(file,map_amiga_to_smb_name,256) != 256 ||
			   Read(file,map_smb_to_amiga_name,256) != 256)
			{
				msg = "Could not read translation file";
				error = IoErr();
			}

			Close(file);
		}
		else
		{
			msg = "Could not open translation file";
			error = IoErr();
		}

		if(msg == NULL)
		{
			TranslateNames = TRUE;
		}
		else
		{
			TEXT description[100];
			STRPTR s;

			Fault(error,NULL,description,sizeof(description));

			/* Drop the line feed - we don't need it. */
			s = strchr(description,'\n');
			if(s != NULL)
				(*s) = '\0';

			report_error("%s '%s' (%ld, %s).",msg,translation_file,error,description);
			goto out;
		}
	}

	if(smba_start(
		service,
		workgroup,
		username,
		opt_password,
		opt_clientname,
		opt_servername,
		opt_cachesize,
		opt_max_transmit,
		opt_timeout,
		opt_raw_smb,
		opt_unicode,
		opt_prefer_core_protocol,
		opt_prefer_write_raw,
		opt_write_behind,
		opt_prefer_read_raw, 
		&error,
		&smb_error_class,
		&smb_error,
		&ServerData) < 0)
	{
		goto out;
	}

	FileSystemPort = CreateMsgPort();
	if(FileSystemPort == NULL)
	{
		report_error("Could not create filesystem port.");
		goto out;
	}

	/* If a device name was provided, check whether it is
	 * well-formed.
	 */
	if(device_name != NULL)
	{
		len = strlen(device_name);

		/* Lose the trailing ':' character, if any. */
		if(len > 0 && device_name[len-1] == ':')
			len--;

		if(NOT is_valid_device_name(device_name, len))
		{
			report_error("Device name '%s' cannot be used with AmigaDOS.",device_name);
			goto out;
		}

		memcpy(name,device_name,len);
		name[len] = '\0';

		dl = LockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

		if(FindDosEntry(dl,name,LDF_DEVICES) != NULL)
			device_exists = TRUE;
	}
	else
	{
		dl = LockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

		/* Find a unique device name. */
		for(i = 0 ; i < 100 ; i++)
		{
			SPrintf(name,"SMBFS%ld",i);

			device_exists = (BOOL)(FindDosEntry(dl,name,LDF_DEVICES) != NULL);
			if(NOT device_exists)
			{
				device_name = name;
				break;
			}
		}
	}

	if(device_exists)
	{
		UnLockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

		report_error("Device name '%s:' is already taken.",device_name);
		goto out;
	}

	/* Finally, create the device node. */
	DeviceNode = MakeDosEntry(name,DLT_DEVICE);
	if(DeviceNode == NULL)
	{
		UnLockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

		report_error("Could not create device node.");
		goto out;
	}

	DeviceNode->dol_Task = FileSystemPort;

	/* Examine the volume name; make sure that it is
	 * well-formed.
	 */
	if(volume_name == NULL)
		actual_volume_name = device_name;
	else
		actual_volume_name = volume_name;

	/* Ignore a trailing colon character. */
	actual_volume_name_len = strlen(actual_volume_name);
	if(actual_volume_name_len > 0 && actual_volume_name[actual_volume_name_len-1] == ':')
		actual_volume_name_len--;

	if(NOT is_valid_device_name(actual_volume_name,actual_volume_name_len))
	{
		UnLockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

		report_error("Volume name '%s' cannot be used with AmigaDOS.",actual_volume_name);
		goto out;
	}

	/* Now, finally, take care of the volume name. */
	memcpy(name,actual_volume_name,actual_volume_name_len);
	name[actual_volume_name_len] = '\0';

	VolumeNode = MakeDosEntry(name,DLT_VOLUME);
	if(VolumeNode == NULL)
	{
		UnLockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

		report_error("Could not create volume node.");
		goto out;
	}

	VolumeNode->dol_Task = FileSystemPort;
	DateStamp(&VolumeNode->dol_misc.dol_volume.dol_VolumeDate);

	/* Allow the file system to be identified by looking at the
	 * contents of the volume node. We put "SMB\0" into the
	 * dol_DiskType field. This was suggested by Chris Handley
	 * and Chris Young. Thank you very much!
	 */
	VolumeNode->dol_misc.dol_volume.dol_DiskType = ID_SMB_DISK;

	if(DeviceNode != NULL)
	{
		AddDosEntry(DeviceNode);

		DeviceNodeAdded = TRUE;
	}

	/* Note: we always need the volume node to make some file
	 *       system operations safe (e.g. Lock()), but we may
	 *       not always need to make it visible.
	 */
	if(volume_name != NULL && VolumeNode != NULL)
	{
		AddDosEntry(VolumeNode);

		VolumeNodeAdded = TRUE;
	}

	/* And that concludes the mounting operation. */
	UnLockDosList(LDF_WRITE|LDF_VOLUMES|LDF_DEVICES);

	/* Tell Workbench and friends to update their volume lists. */
	if(VolumeNodeAdded)
		send_disk_change_notification(IECLASS_DISKINSERTED);

	SetProgramName(NewProgramName);

	result = TRUE;

 out:

	RETURN(result);
	return(result);
}

/****************************************************************************/

/* Truncate an file size or position which cannot be represented by a
 * single 32 bit integer and substitute it with something vaguely more
 * sensible (which probably isn't so sensible in the first place, but
 * we keep trying).
 */
static ULONG
truncate_64_bit_position(const QUAD * position_quad)
{
	ULONG result;

	if(position_quad->High == 0)
		result = position_quad->Low;
	else
		result = 0xFFFFFFFFUL;

	return(result);
}

/****************************************************************************/

#if DEBUG

/* Create a form of the given file/directory name which shows unprintable
 * characters through the use of 'C' style escape sequences. Returns a
 * pointer to a local static buffer which contains the escaped string.
 * If the escape form of the name is too long to fit into the buffer,
 * the text " [...]" will be appended to contents of the buffer, to indicate
 * that the name was truncated.
 */
TEXT *
escape_name(const TEXT * name)
{
	static const TEXT truncated_suffix[] = " [...]";
	static TEXT buffer[4 * 256 + sizeof(truncated_suffix)];

	const int buffer_size = (int)sizeof(buffer) - sizeof(truncated_suffix);
	BOOL truncated = FALSE;
	TEXT hex_code[6];
	TEXT * str;
	int len;
	TEXT c;

	len = 0;

	while((c = (*name++)) != '\0')
	{
		if (c < ' ')
		{
			int l = 2;

			switch(c)
			{
				case '\a':

					str = "\\a";
					break;

				case '\b':

					str = "\\b";
					break;

				case '\f':

					str = "\\f";
					break;

				case '\n':

					str = "\\n";
					break;

				case '\r':

					str = "\\r";
					break;

				case '\t':

					str = "\\t";
					break;

				case '\v':

					str = "\\v";
					break;

				default:

					SPrintf(hex_code,"\\x%02lx",c);
					str = hex_code;

					l = 4;
					break;
			}

			if(len + l >= buffer_size)
			{
				truncated = TRUE;
				break;
			}

			memcpy(&buffer[len],str,l);
			len += l;
		}
		else if (127 <= c && c <= 160)
		{
			if(len + 4 >= buffer_size)
			{
				truncated = TRUE;
				break;
			}

			SPrintf(hex_code,"\\x%02lx",c);

			memcpy(&buffer[len],hex_code,4);
			len += 4;
		}
		else if (c == '\\')
		{
			if(len + 2 >= buffer_size)
			{
				truncated = TRUE;
				break;
			}

			buffer[len++] = c;
			buffer[len++] = c;
		}
		else
		{
			if(len + 1 >= buffer_size)
			{
				truncated = TRUE;
				break;
			}

			buffer[len++] = c;
		}
	}

	if(truncated)
	{
		memcpy(&buffer[len],truncated_suffix,sizeof(truncated_suffix)-1);
		len += sizeof(truncated_suffix)-1;
	}

	buffer[len] = '\0';

	return(buffer);
}

#endif /* DEBUG */

/****************************************************************************/

/* Convert a BCPL string into a standard NUL terminated 'C' string. */
static void
convert_from_bcpl_to_c_string(STRPTR cstring,int cstring_size,const void * bstring)
{
	const TEXT * from = bstring;
	int len;

	ASSERT( cstring_size > 0 );

	len = from[0];
	if(len > cstring_size-1)
		len = cstring_size-1;

	if(len > 0)
		memcpy(cstring,&from[1],len);

	if(cstring_size > 0)
	{
		ASSERT( len >= 0 );

		cstring[len] = '\0';
	}
}

/* Convert a NUL terminated 'C' string into a BCPL string. */
static void
convert_from_c_to_bcpl_string(void * bstring,int bstring_size,const TEXT * cstring,int len)
{
	TEXT * to = bstring;

	ASSERT( bstring_size > 0 );

	if(bstring_size > 0)
	{
		if(bstring_size > 256)
			bstring_size = 256;

		if(len > bstring_size-1)
			len = bstring_size-1;

		(*to++) = len;
		memcpy(to,cstring,len);
	}
}

/****************************************************************************/

/* Remove any double '\' in the path, which for AmigaDOS path name
 * semantics would mean "move up one directory level", but which is
 * either ambiguous or has no meaning for SMB and the file system
 * layer it sits upon.
 *
 * Hence "foo\bar\\baz" becomes "foo\baz", "foo\\bar", becomes "bar",
 * "foo\\" becomes "" and "\foo" is not permitted and will result in
 * an error.
 *
 * A trailing path name separator will be removed since it has no
 * meaning for SMB path names, e.g. "Documents\" will become "Documents".
 */
static int
reduce_path_name(TEXT * name,int len,int * new_len_ptr)
{
	int error = ERROR_INVALID_COMPONENT_NAME;
	int position;

	ENTER();

	ASSERT( name != NULL );

	SHOWSTRING(name);

	position = len;

	while(len > 1)
	{
		position--;
		if(position == 0)
			break;

		/* Do we have to remove the path component preceding
		 * this separator character?
		 */
		if(position > 1 &&
		   name[position] == SMB_PATH_SEPARATOR &&
		   name[position - 1] == SMB_PATH_SEPARATOR &&
		   name[position - 2] != SMB_PATH_SEPARATOR)
		{
			int start, component_len;

			start = position;

			position -= 2;

			/* Find the position of the path component we
			 * will have to remove.
			 */
			while(position >= 0 && name[position] != SMB_PATH_SEPARATOR)
				position--;

			if(position < 0 || name[position] == SMB_PATH_SEPARATOR)
				position++;

			/* How many characters do we have to remove? */
			component_len = start - position + 1;

			/* Remove the path component from the path. */
			memmove(&name[position],&name[position + component_len],len - (position + component_len));

			len -= component_len;

			position = len;
		}
	}

	/* "\foo" is not permitted. */
	if(len > 0 && name[0] == SMB_PATH_SEPARATOR)
	{
		D(("leading '%lc' not permitted", SMB_PATH_SEPARATOR));
		goto out;
	}

	/* There should never be a trailing path separator (since it would
	 * not separate anything, and it has no meaning in SMB paths).
	 */
	if(len > 0 && name[len-1] == SMB_PATH_SEPARATOR)
		len--;

	name[len] = '\0';

	if(new_len_ptr != NULL)
		(*new_len_ptr) = len;

	error = OK;

 out:

	RETURN(error);
	return(error);
}

/****************************************************************************/

/* Build the fully qualified name of a file or directory in reference
 * to the name of the parent directory. This takes care of all the
 * special cases, such as the root directory. The result will be converted
 * to be in a form suitable for use with the SMB file sharing service.
 *
 * Note that the parent directory name uses SMB path name separator
 * characters ("\"), but the path name to be added ("name") uses the
 * AmigaDOS path name separator characters ("/").
 *
 * This function will return ERROR_NO_FREE_STORE if the memory allocation
 * failed, and ERROR_INVALID_COMPONENT_NAME if the combination of the
 * parent name and the name wound up referring to the root directory.
 */
static int
build_full_path_name(
	const TEXT *	parent_name,
	const TEXT *	name,
	STRPTR *		result_ptr)
{
	int error = OK;
	int parent_name_len;
	int name_len;
	STRPTR buffer;
	int size;
	int len;
	int i;

	ENTER();

	if(parent_name == NULL)
		D(("parent_name = NULL"));
	else
		D(("parent_name = '%s'",escape_name(parent_name)));

	D(("name = '%s'",escape_name(name)));

	(*result_ptr) = NULL;

	if(name != NULL)
	{
		name_len = strlen(name);

		/* Throw everything left of the colon away. */
		for(i = 0 ; i < name_len ; i++)
		{
			/* A colon character is permitted in
			 * path components, but is not
			 * necessarily useful...
			 */
			if(name[i] == '/')
				break;

			if(name[i] == ':')
			{
				name = &name[i];
				name_len -= i;

				break;
			}
		}
	}
	else
	{
		name_len = 0;
	}

	if(parent_name != NULL)
	{
		/* Skip any leading delimiters. */
		while((*parent_name) == SMB_PATH_SEPARATOR)
			parent_name++;

		parent_name_len = strlen(parent_name);

		/* Ignore any trailing delimiters. */
		while(parent_name_len > 0 && parent_name[parent_name_len-1] == SMB_PATH_SEPARATOR)
			parent_name_len--;
	}
	else
	{
		parent_name_len = 0;
	}

	/* Is the path to be added absolute? If so,
	 * it will replace the parent name.
	 */
	if(name_len > 0 && (*name) == ':')
	{
		int c;

		name++;
		name_len--;

		size = 1 + name_len + 1;

		buffer = allocate_memory(size);
		if(buffer == NULL)
		{
			error = ERROR_NO_FREE_STORE;
			goto out;
		}

		buffer[0] = SMB_PATH_SEPARATOR;

		/* Copy the name, replacing the path name
		 * separator characters.
		 */
		for(i = 0 ; i < name_len ; i++)
		{
			c = name[i];
			if(c == '/')
				c = SMB_PATH_SEPARATOR;

			buffer[1 + i] = c;
		}

		len = 1 + name_len;
	}
	/* Add the path name to the parent path. */
	else
	{
		size = 1 + parent_name_len + 1 + name_len + 1;

		buffer = allocate_memory(size);
		if(buffer == NULL)
		{
			error = ERROR_NO_FREE_STORE;
			goto out;
		}

		buffer[0] = SMB_PATH_SEPARATOR;
		len = 1;

		/* Add the parent path, if any. */
		if(parent_name_len > 0)
		{
			memcpy(&buffer[len],parent_name,parent_name_len);
			len += parent_name_len;
		}

		/* Add the path, if any. */
		if(name_len > 0)
		{
			int c;

			/* Add a path separator, if necessary. */
			if(parent_name_len > 0)
				buffer[len++] = SMB_PATH_SEPARATOR;

			/* Copy the name, replacing the path name
			 * separator characters.
			 */
			for(i = 0 ; i < name_len ; i++)
			{
				c = name[i];
				if(c == '/')
					c = SMB_PATH_SEPARATOR;

				buffer[len+i] = c;
			}

			len += name_len;
		}
	}

	ASSERT( len < size );

	buffer[len] = '\0';

	D(("buffer = '%s'",escape_name(buffer)));
	SHOWVALUE(size);
	SHOWVALUE(len);

	/* Remove any double '\' in the path, which for AmigaDOS path name
	 * semantics would mean "move up one directory level", but which is
	 * either ambiguous or has no meaning for SMB and the file system
	 * layer it sits upon.
	 */
	if(len > 1)
	{
		int new_len;

		error = reduce_path_name(&buffer[1],len-1,&new_len);
		if(error != OK)
			goto out;

		ASSERT( new_len <= len-1 );

		if(new_len < len-1)
			D(("reduced buffer = '%s'",escape_name(buffer)));
	}

	(*result_ptr) = buffer;
	buffer = NULL;

 out:

	free_memory(buffer);

	RETURN(error);
	return(error);
}

/****************************************************************************/

/* Break up an SMB path name into two parts, this being the directory part
 * and a base part. For example, in "\foo\bar\baz" the directory part would
 * be "\foo\bar" and the base part would be "baz".
 *
 * Because breaking up the path name may require adding a NUL byte to
 * separate the directory and base parts, buffer memory will be allocated to
 * hold the path name.
 *
 * Pointers to the directory and base parts will be provided by filling in the
 * dir_part_ptr and base_part_ptr pointers, unless these are NULL. Note that
 * the strings are read-only.
 *
 * This function will return an error if memory allocation failed or if the
 * path name provided cannot be split.
 *
 * Make sure to release the memory allocated which the temp_ptr will point to
 * when you no longer need it.
 */
static int
split_path_name(
	const TEXT *	path,
	int				path_len,
	STRPTR *		temp_ptr,
	STRPTR *		dir_part_ptr,
	STRPTR *		base_part_ptr)
{
	STRPTR dir_part = NULL;
	STRPTR base_part = NULL;
	int error = OK;
	STRPTR temp;
	int i;

	ASSERT( path != NULL && path_len >= 0 && temp_ptr != NULL );

	(*temp_ptr) = NULL;

	if(dir_part_ptr != NULL)
		(*dir_part_ptr) = NULL;

	if(base_part_ptr != NULL)
		(*base_part_ptr) = NULL;

	/* Make a copy of the path string. */
	temp = allocate_memory(path_len+1);
	if(temp == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memcpy(temp,path,path_len);
	temp[path_len] = '\0';

	/* Find the last '\' character which separates
	 * the directory part from the base part.
	 */
	for(i = path_len-1 ; i >= 0 ; i--)
	{
		if(temp[i] == SMB_PATH_SEPARATOR)
		{
			/* Is this the root directory? */
			if(i == 0)
			{
				/* We return this constant value as the
				 * directory part (root directory).
				 */
				dir_part = "\\";

				/* If possible, return what follows the root
				 * directory as the base part.
				 */
				if(path_len > 1)
					base_part = &temp[i+1];
			}
			else
			{
				/* Chop off the directory part. */
				dir_part = temp;
				temp[i] = '\0';

				if(i+1 < path_len)
					base_part = &temp[i+1];
			}

			break;
		}
	}

	/* We have to have a directory part and a base part. */
	if(dir_part == NULL || base_part == NULL)
	{
		error = ERROR_INVALID_COMPONENT_NAME;
		goto out;
	}

	/* Don't forget to free this when it is no longer needed. */
	(*temp_ptr)	= temp;
	temp = NULL;

	if(dir_part_ptr != NULL)
		(*dir_part_ptr) = dir_part;

	if(base_part_ptr != NULL)
		(*base_part_ptr) = base_part;

 out:

	free_memory(temp);

	return(error);
}

/****************************************************************************/

/* Return a pointer to the base part of an SMB path name. For example,
 * in "\foo\bar\baz" the base part would be "baz", and in "foo" the
 * base part (in the absence of a directory part) would be identical
 * to the path name "foo".
 *
 * Note that this function requires the path name to consist of a
 * directory and a base part, and the base part must not be empty,
 * e.g. "foo\" is not supported.
 */
static const TEXT *
get_base_name(const TEXT * path_name,int path_name_len)
{
	const TEXT * result = path_name;

	if(path_name_len > 1)
	{
		int i;

		for(i = path_name_len-1 ; i >= 0 ; i--)
		{
			if(path_name[i] == SMB_PATH_SEPARATOR)
			{
				ASSERT( i+1 < path_name_len );

				result = &path_name[i+1];
				break;
			}
		}
	}

	return(result);
}

/****************************************************************************/

/* Find the parent directory of a file or directory. This strips off the
 * last part of the name, e.g. translating "\foo" into "\" and "\foo\bar"
 * into "\foo". There is no parent for the root directory ("\").
 */
static int
get_parent_dir_name(const TEXT * name,int name_len,STRPTR * parent_name_ptr)
{
	STRPTR parent_name = NULL;
	int error;
	int i;

	ENTER();

	ASSERT( name != NULL && name_len >= 0 && parent_name_ptr != NULL );

	(*parent_name_ptr) = NULL;

	D(("finding parent directory of '%s'",escape_name(name)));

	if(name_len == 0)
	{
		SHOWMSG("no parent directory found");

		/* The root directory has no parent. */
		error = ERROR_INVALID_COMPONENT_NAME;
		goto out;
	}

	/* Drop any trailing '\' character. */
	if(name_len > 1 && name[name_len-1] == SMB_PATH_SEPARATOR)
		name_len--;

	if(name_len == 1 && name[0] == SMB_PATH_SEPARATOR)
	{
		SHOWMSG("no parent directory found");

		/* The root directory has no parent. */
		error = ERROR_INVALID_COMPONENT_NAME;
		goto out;
	}

	/* Remove the last part of the path. */
	for(i = name_len - 1 ; i >= 0 ; i--)
	{
		if(name[i] == SMB_PATH_SEPARATOR)
		{
			/* This translates "\foo" into "\", and
			 * "\foo\bar" into "\foo".
			 */
			if(i == 0)
				name_len = 1;
			else
				name_len = i;

			break;
		}
	}

	parent_name = allocate_memory(name_len+1);
	if(parent_name == NULL)
	{
		SHOWMSG("not enough memory");

		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memcpy(parent_name,name,name_len);
	parent_name[name_len] = '\0';

	D(("parent directory = '%s'",escape_name(parent_name)));

	(*parent_name_ptr) = parent_name;
	parent_name = NULL;

	error = OK;

 out:

	free_memory(parent_name);

	RETURN(error);
	return(error);
}

/****************************************************************************/

/* Translate an Amiga file name into an encoded form, such as
 * through a code page translation table. The file name provided will
 * be modified in place and may become longer than it already is.
 */
static int
translate_amiga_name_to_smb_name(STRPTR name, int name_len, int name_size)
{
	int error = ERROR_INVALID_COMPONENT_NAME;

	ASSERT( name != NULL && name_len < name_size );

	/* Translate the Amiga file name using a translation table? */
	if (TranslateNames)
	{
		const TEXT * map = map_amiga_to_smb_name;
		TEXT c;
		int i;

		for(i = 0 ; i < name_len ; i++)
		{
			c = map[name[i]];

			/* The NUL means that the respective mapping cannot
			 * represent the desired character.
			 */
			if(c == '\0')
				goto out;

			name[i] = c;
		}
	}

	error = OK;

 out:

	return(error);
}

/****************************************************************************/

/* Translate an SMB file name in encoded form, such as
 * through a code page translation table, into a form suitable
 * for use with AmigaDOS. The file name provided will be modified
 * in place and may become longer than it already is.
 */
static int
translate_smb_name_to_amiga_name(STRPTR name, int name_len, int name_size)
{
	int error = ERROR_INVALID_COMPONENT_NAME;

	ASSERT( name != NULL && name_len < name_size );

	/* Translate the name to Amiga format using a mapping table. */
	if (TranslateNames)
	{
		const TEXT * map = map_smb_to_amiga_name;
		TEXT c;
		int i;

		for(i = 0 ; i < name_len ; i++)
		{
			c = map[name[i]];

			/* The NUL means that the respective mapping cannot
			 * represent the desired character.
			 */
			if(c == '\0')
				goto out;

			name[i] = c;
		}
	}

	error = OK;

 out:

	return(error);
}

/****************************************************************************/

/* Restart directory scanning for all locks which share
 * the parent directory of a directory or file which was
 * just deleted.
 *
 * Because restarting interferes with the default
 * procedure for deleting all the entries of a directory,
 * we do not restart scanning on directories which the
 * same process is currently scanning and issuing deletion
 * commands for.
 */
static void
restart_directory_scanning(const struct MsgPort * user,const TEXT * parent_dir_name)
{
	struct LockNode * ln;

	ENTER();

	SHOWSTRING(parent_dir_name);

	for(ln = (struct LockNode *)LockList.mlh_Head ;
	    ln->ln_MinNode.mln_Succ != NULL ;
	    ln = (struct LockNode *)ln->ln_MinNode.mln_Succ)
	{
		/* Try not to self-disrupt directory scanning while
		 * deleting the contents of the directory.
		 */
		if(ln->ln_LastUser == user)
			continue;

		if(compare_names(parent_dir_name,ln->ln_FullName) == SAME)
		{
			D(("restart scanning for '%s'", escape_name(ln->ln_FullName)));

			ln->ln_RestartExamine = TRUE;
		}
	}

	LEAVE();
}

/****************************************************************************/

static BPTR
Action_Parent(
	const struct MsgPort *	user,
	struct FileLock *		parent,
	LONG *					error_ptr)
{
	BPTR result = ZERO;
	STRPTR full_name = NULL;
	struct LockNode * parent_ln;
	struct LockNode * ln = NULL;
	int error;

	ENTER();

	SHOWVALUE(parent);

	/* The zero lock's parent is the zero lock. */
	if(parent == NULL)
	{
		error = OK;
		goto out;
	}

	parent_ln = (struct LockNode *)parent->fl_Key;

	if(parent_ln == NULL || parent_ln->ln_Magic != ID_SMB_DISK)
	{
		SHOWMSG("lock doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	parent_ln->ln_LastUser = user;

	error = get_parent_dir_name(parent_ln->ln_FullName,strlen(parent_ln->ln_FullName),&full_name);
	if(error != OK)
	{
		/* Check if we ended up having to return the parent of
		 * the root directory. This is indicated by the
		 * error code ERROR_INVALID_COMPONENT_NAME.
		 */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = OK;

		goto out;
	}

	ln = allocate_memory(sizeof(*ln));
	if(ln == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(ln,0,sizeof(*ln));

	ln->ln_FileLock.fl_Key		= (LONG)ln;
	ln->ln_Magic				= ID_SMB_DISK;
	ln->ln_FileLock.fl_Access	= SHARED_LOCK;
	ln->ln_FileLock.fl_Task		= FileSystemPort;
	ln->ln_FileLock.fl_Volume	= MKBADDR(VolumeNode);
	ln->ln_FullName				= full_name;
	ln->ln_LastUser				= user;

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_read_only,open_dont_truncate,&ln->ln_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	AddTail((struct List *)&LockList,(struct Node *)ln);
	result = MKBADDR(&ln->ln_FileLock);
	SHOWVALUE(&ln->ln_FileLock);

	full_name = NULL;
	ln = NULL;

 out:

	free_memory(full_name);
	free_memory(ln);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_DeleteObject(
	const struct MsgPort *	user,
	struct FileLock *		parent,
	const void *			bcpl_name,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	STRPTR full_name = NULL;
	smba_file_t * file = NULL;
	const TEXT * parent_name;
	STRPTR full_parent_name = NULL;
	TEXT name[MAX_FILENAME_LEN+1];
	struct LockNode * ln;
	smba_stat_t st;
	int error;

	ENTER();

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		ln = (struct LockNode *)parent->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		parent_name = ln->ln_FullName;

		ln->ln_LastUser = user;
	}
	else
	{
		parent_name = NULL;
	}

	D(("name = '%b'",MKBADDR(bcpl_name)));

	/* Name string, as given in the DOS packet, is in
	 * BCPL format and needs to be converted into
	 * 'C' format.
	 */
	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to delete the root directory, are you kidding? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
		{
			LOG(("cannot delete the root directory\n"));

			error = ERROR_OBJECT_IN_USE;
		}

		goto out;
	}

	/* Is there a file handle or file lock attached to this
	 * object? If so, we'll exit right away.
	 */
	error = check_access_mode_collision(full_name,EXCLUSIVE_LOCK);
	if(error != OK)
	{
		LOG(("there is still a lock or file attached to %s\n", full_name));
		goto out;
	}
	
	/* We need to find this file's parent directory, so that
	 * in case the directory contents are currently being
	 * examined, that process is restarted.
	 */
	error = get_parent_dir_name(full_name,strlen(full_name),&full_parent_name);
	if(error != OK)
		goto out;

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_read_only,open_dont_truncate,&file,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	if(smba_getattr(file,&st,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	smba_close(ServerData,file);
	file = NULL;

	if(st.is_dir)
	{
		SHOWMSG("removing a directory");

		if(smba_rmdir(ServerData,full_name,&error) < 0)
		{
			int translated_error;
			
			if(error == error_check_smb_error)
				translated_error = smb_errno(((struct smb_server *)ServerData)->rcls,((struct smb_server *)ServerData)->err);
			else
				translated_error = error;
			
			D(("that didn't work (error=%ld)", translated_error));

			/* This is a little bit difficult to justify since
			 * the error code may indicate a different cause,
			 * but in practice 'EACCES' seems to be returned
			 * if the directory to remove is not empty.
			 *
			 * Except when it isn't: the CIFS documentation
			 * mentions that ERRDOS/ERRnoaccess can mean
			 * "access denied", "directory is in use" or
			 * "directory is not empty". All of these may
			 * map to either EACCESS or EPERM (we don't use
			 * the third alternative ENOENT).
			 */
			if(translated_error == EACCES || translated_error == EPERM)
			{
				SHOWMSG("that directory might not be empty");
				
				error = ERROR_DIRECTORY_NOT_EMPTY;
			}
			else
			{
				SHOWMSG("could be some other problem");
				
				error = map_errno_to_ioerr(error);
			}

			goto out;
		}
	}
	else
	{
		SHOWMSG("removing a file");

		if(smba_remove(ServerData,full_name,&error) < 0)
		{
			SHOWVALUE(error);

			error = map_errno_to_ioerr(error);
			goto out;
		}
	}

	/* Restart directory scanning for all locks which share
	 * the parent directory of the object just deleted.
	 */
	restart_directory_scanning(user, full_parent_name);

	SHOWMSG("done.");

	result = DOSTRUE;

 out:

	if(file != NULL)
		smba_close(ServerData,file);

	free_memory(full_name);
	free_memory(full_parent_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static BPTR
Action_CreateDir(
	const struct MsgPort *	user,
	struct FileLock *		parent,
	const void * 			bcpl_name,
	LONG *					error_ptr)
{
	BPTR result = ZERO;
	STRPTR full_name = NULL;
	struct LockNode * ln = NULL;
	const TEXT * parent_name;
	smba_file_t * dir = NULL;
	TEXT name[MAX_FILENAME_LEN+1];
	STRPTR dir_name,base_name,temp = NULL;
	int error;

	ENTER();

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		struct LockNode * parent_ln = (struct LockNode *)parent->fl_Key;

		if(parent_ln == NULL || parent_ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		parent_ln->ln_LastUser = user;

		parent_name = parent_ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	D(("name = '%b'",MKBADDR(bcpl_name)));

	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to overwrite the root directory, are you kidding? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_IN_USE;

		goto out;
	}

	error = split_path_name(full_name,strlen(full_name),&temp,&dir_name,&base_name);
	if(error != OK)
	{
		D(("could not split path '%s'",escape_name(full_name)));
		goto out;
	}

	D(("path name = '%s'",escape_name(full_name)));
	D(("directory name = '%s'\n", dir_name));
	D(("base name = '%s'\n", base_name));

	ln = allocate_memory(sizeof(*ln));
	if(ln == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(ln,0,sizeof(*ln));

	ln->ln_FileLock.fl_Key		= (LONG)ln;
	ln->ln_Magic				= ID_SMB_DISK;
	ln->ln_FileLock.fl_Access	= EXCLUSIVE_LOCK;
	ln->ln_FileLock.fl_Task		= FileSystemPort;
	ln->ln_FileLock.fl_Volume	= MKBADDR(VolumeNode);
	ln->ln_FullName				= full_name;
	ln->ln_LastUser				= user;

	if(smba_open(ServerData,dir_name,open_read_only,open_dont_truncate,&dir,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	ASSERT( base_name != NULL );

	if(smba_mkdir(dir,base_name,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	smba_close(ServerData,dir);
	dir = NULL;

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_read_only,open_dont_truncate,&ln->ln_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	AddTail((struct List *)&LockList,(struct Node *)ln);
	result = MKBADDR(&ln->ln_FileLock);
	SHOWVALUE(&ln->ln_FileLock);

	full_name = NULL;
	ln = NULL;

 out:

	if(dir != NULL)
		smba_close(ServerData,dir);

	free_memory(temp);
	free_memory(full_name);
	free_memory(ln);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static BPTR
Action_LocateObject(
	const struct MsgPort *	user,
	struct FileLock *		parent,
	const void * 			bcpl_name,
	LONG					mode,
	LONG *					error_ptr)
{
	BPTR result = ZERO;
	STRPTR full_name = NULL;
	struct LockNode * ln = NULL;
	const TEXT * parent_name;
	TEXT name[MAX_FILENAME_LEN+1];
	int error;

	ENTER();

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		struct LockNode * parent_ln = (struct LockNode *)parent->fl_Key;

		if(parent_ln == NULL || parent_ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		parent_ln->ln_LastUser = user;

		parent_name = parent_ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	D(("name = '%b'",MKBADDR(bcpl_name)));

	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	if(is_reserved_name(FilePart(name)))
	{
		error = ERROR_OBJECT_NOT_FOUND;
		goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to get a lock on the root directory's parent?
		 * My pleasure.
		 */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_NOT_FOUND;

		goto out;
	}

	ln = allocate_memory(sizeof(*ln));
	if(ln == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(ln,0,sizeof(*ln));

	ln->ln_FileLock.fl_Key		= (LONG)ln;
	ln->ln_Magic				= ID_SMB_DISK;
	ln->ln_FileLock.fl_Access	= (mode != EXCLUSIVE_LOCK) ? SHARED_LOCK : EXCLUSIVE_LOCK;
	ln->ln_FileLock.fl_Task		= FileSystemPort;
	ln->ln_FileLock.fl_Volume	= MKBADDR(VolumeNode);
	ln->ln_FullName				= full_name;
	ln->ln_LastUser				= user;

	error = check_access_mode_collision(full_name,ln->ln_FileLock.fl_Access);
	if(error != OK)
		goto out;

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_read_only,open_dont_truncate,&ln->ln_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	AddTail((struct List *)&LockList,(struct Node *)ln);
	result = MKBADDR(&ln->ln_FileLock);
	SHOWVALUE(&ln->ln_FileLock);

	full_name = NULL;
	ln = NULL;

 out:

	free_memory(full_name);
	free_memory(ln);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static BPTR
Action_CopyDir(
	const struct MsgPort *	user,
	struct FileLock *		lock,
	LONG *					error_ptr)
{
	BPTR result = ZERO;
	STRPTR full_name = NULL;
	struct LockNode * ln = NULL;
	const TEXT * source_name;
	int source_name_len;
	LONG source_mode;
	int error;

	ENTER();

	SHOWVALUE(lock);

	if(lock != NULL && lock->fl_Access != SHARED_LOCK)
	{
		SHOWMSG("cannot duplicate exclusive lock");
		error = ERROR_OBJECT_IN_USE;
		goto out;
	}

	ln = allocate_memory(sizeof(*ln));
	if(ln == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(ln,0,sizeof(*ln));

	if(lock != NULL)
	{
		struct LockNode * source = (struct LockNode *)lock->fl_Key;

		if(source == NULL || source->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		source->ln_LastUser = user;

		source_name = source->ln_FullName;
		source_mode = source->ln_FileLock.fl_Access;
	}
	else
	{
		source_name = SMB_ROOT_DIR_NAME;
		source_mode = SHARED_LOCK;
	}

	source_name_len = strlen(source_name);

	full_name = allocate_memory(source_name_len+1);
	if(full_name == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	/* Length includes the terminating NUL byte. */
	memcpy(full_name,source_name,source_name_len+1);

	ln->ln_FileLock.fl_Key		= (LONG)ln;
	ln->ln_Magic				= ID_SMB_DISK;
	ln->ln_FileLock.fl_Access	= source_mode;
	ln->ln_FileLock.fl_Task		= FileSystemPort;
	ln->ln_FileLock.fl_Volume	= MKBADDR(VolumeNode);
	ln->ln_FullName				= full_name;
	ln->ln_LastUser				= user;

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_read_only,open_dont_truncate,&ln->ln_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	AddTail((struct List *)&LockList,(struct Node *)ln);
	result = MKBADDR(&ln->ln_FileLock);
	SHOWVALUE(&ln->ln_FileLock);

	full_name = NULL;
	ln = NULL;

 out:

	free_memory(full_name);
	free_memory(ln);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_FreeLock(
	struct FileLock *	lock,
	LONG *				error_ptr)
{
	LONG result = DOSTRUE;
	const struct LockNode * key;
	struct LockNode * found;
	struct LockNode * ln;
	int error = OK;

	ENTER();

	SHOWVALUE(lock);

	if(lock == NULL)
		goto out;

	/* Make sure that no lock is released twice, and that we
	 * know which locks are ours.
	 */
	found = NULL;
	key = (struct LockNode *)lock->fl_Key;

	if(key == NULL || key->ln_Magic != ID_SMB_DISK)
	{
		SHOWMSG("lock doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	for(ln = (struct LockNode *)LockList.mlh_Head ;
		ln->ln_MinNode.mln_Succ != NULL ; 
		ln = (struct LockNode *)ln->ln_MinNode.mln_Succ)
	{
		if(ln == key)
		{
			found = ln;
			break;
		}
	}

	if(found == NULL)
	{
		error = ERROR_INVALID_LOCK;
		goto out;
	}

	Remove((struct Node *)found);

	smba_close(ServerData,found->ln_File);

	found->ln_Magic = 0;

	free_memory(found->ln_FullName);
	free_memory(found);

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_SameLock(
	const struct MsgPort *	user,
	struct FileLock *		lock1,
	struct FileLock *		lock2,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	const TEXT * name1;
	const TEXT * name2;
	int error = OK;

	ENTER();

	SHOWVALUE(lock1);
	SHOWVALUE(lock2);

	if(lock1 != NULL)
	{
		struct LockNode * ln = (struct LockNode *)lock1->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		name1 = ln->ln_FullName;
	}
	else
	{
		name1 = SMB_ROOT_DIR_NAME;
	}

	if(lock2 != NULL)
	{
		struct LockNode * ln = (struct LockNode *)lock2->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		name2 = ln->ln_FullName;
	}
	else
	{
		name2 = SMB_ROOT_DIR_NAME;
	}

	D(("name1 = '%s'",escape_name(name1)));
	D(("name2 = '%s'",escape_name(name2)));

	if(Stricmp(name1,name2) == SAME)
		result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_SetProtect(
	const struct MsgPort *	user,
	struct FileLock *		parent,
	const void * 			bcpl_name,
	LONG					mask,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	STRPTR full_name = NULL;
	smba_file_t * file = NULL;
	const TEXT * parent_name;
	TEXT name[MAX_FILENAME_LEN+1];
	smba_stat_t st;
	int error;

	ENTER();

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		struct LockNode * ln = (struct LockNode *)parent->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		parent_name = ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	D(("name = '%b'",MKBADDR(bcpl_name)));

	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to change the protection bits of the root
		 * directory, are you kidding?
		 */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_WRONG_TYPE;

		goto out;
	}

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_writable,open_dont_truncate,&file,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	memset(&st,0,sizeof(st));

	st.atime = -1;
	st.ctime = -1;
	st.mtime = -1;

	if((mask & FIBF_DELETE) != 0)
	{
		SHOWMSG("write/delete protection enabled");
		st.is_read_only = TRUE;
	}
	else
	{
		SHOWMSG("write/delete protection disabled");
	}

	/* Careful: the 'archive' attribute has exactly the opposite
	 *          meaning in the Amiga and the SMB worlds.
	 */
	st.is_changed_since_last_archive = ((mask & FIBF_ARCHIVE) == 0);

	if(smba_setattr(file,&st,NULL,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	result = DOSTRUE;

 out:

	if(file != NULL)
		smba_close(ServerData,file);

	free_memory(full_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_RenameObject(
	const struct MsgPort *	user,
	struct FileLock *		source_lock,
	const void *			source_bcpl_name,
	struct FileLock *		destination_lock,
	const void *			destination_bcpl_name,
	LONG *					error_ptr)
{
	struct LockNode * ln;
	LONG result = DOSFALSE;
	STRPTR full_source_name = NULL;
	STRPTR full_destination_name = NULL;
	STRPTR parent_source_name = NULL;
	STRPTR parent_destination_name = NULL;
	TEXT name[MAX_FILENAME_LEN+1];
	const TEXT * parent_name;
	int error;

	ENTER();

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	SHOWVALUE(source_lock);
	SHOWVALUE(destination_lock);

	D(("source name = '%b'",MKBADDR(source_bcpl_name)));
	D(("destination name = '%b'",MKBADDR(destination_bcpl_name)));

	if(source_lock != NULL)
	{
		ln = (struct LockNode *)source_lock->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		parent_name = ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	convert_from_bcpl_to_c_string(name,sizeof(name),source_bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_source_name);
	if(error != OK)
	{
		/* Trying to rename the root directory, are you kidding? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_IN_USE;

		goto out;
	}

	if(destination_lock != NULL)
	{
		ln = (struct LockNode *)destination_lock->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		parent_name = ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	convert_from_bcpl_to_c_string(name,sizeof(name),destination_bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_destination_name);
	if(error != OK)
	{
		/* Trying to rename the root directory, are you kidding? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_IN_USE;

		goto out;
	}

	/* Is this object still in use? If so, renaming it would require
	 * updating the names in all the file locks and file handles which
	 * use it.
	 */
	error = name_already_in_use(full_source_name);
	if(error != OK)
		goto out;

	error = name_already_in_use(full_destination_name);
	if(error != OK)
		goto out;

	D(("source name = '%s'",escape_name(full_source_name)));
	D(("destination name = '%s'",escape_name(full_destination_name)));

	if(smba_rename(ServerData,full_source_name,full_destination_name,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	get_parent_dir_name(full_source_name,strlen(full_source_name),&parent_source_name);
	get_parent_dir_name(full_destination_name,strlen(full_destination_name),&parent_destination_name);

	/* Restart directory scanning in the source directory from which
	 * the entry was removed unless entry just changed name, but did
	 * not move to a different directory.
	 */
	if(parent_source_name != NULL && (parent_destination_name == NULL || compare_names(parent_source_name,parent_destination_name) != SAME))
		restart_directory_scanning(user,parent_source_name);

	result = DOSTRUE;

 out:

	free_memory(full_source_name);
	free_memory(full_destination_name);

	free_memory(parent_source_name);
	free_memory(parent_destination_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_DiskInfo(
	struct InfoData *	id,
	LONG *				error_ptr)
{
	LONG result = DOSTRUE;
	LONG block_size;
	LONG num_blocks;
	LONG num_blocks_free;
	int error;

	ENTER();

	memset(id,0,sizeof(*id));

	if(WriteProtected)
		id->id_DiskState = ID_WRITE_PROTECTED;
	else
		id->id_DiskState = ID_VALIDATED;

	if(smba_statfs(ServerData,&block_size,&num_blocks,&num_blocks_free,&error) >= 0)
	{
		SHOWMSG("got the disk data");
		SHOWVALUE(block_size);
		SHOWVALUE(num_blocks);
		SHOWVALUE(num_blocks_free);

		if(block_size <= 0)
			block_size = 512;

		if(block_size < 512)
		{
			num_blocks		/= (512 / block_size);
			num_blocks_free	/= (512 / block_size);
		}
		else if (block_size > 512)
		{
			num_blocks		*= (block_size / 512);
			num_blocks_free	*= (block_size / 512);
		}

		id->id_NumBlocks		= num_blocks;
		id->id_NumBlocksUsed	= num_blocks - num_blocks_free;
		id->id_BytesPerBlock	= 512;
		id->id_DiskType			= ID_DOS_DISK;
		id->id_VolumeNode		= MKBADDR(VolumeNode);
		id->id_InUse			= NOT (IsListEmpty((struct List *)&FileList) && IsListEmpty((struct List *)&LockList));

		if(id->id_NumBlocks == 0)
			id->id_NumBlocks = 1;

		if(id->id_NumBlocksUsed == 0)
			id->id_NumBlocksUsed = 1;
	}
	else
	{
		SHOWMSG("could not get any disk data");

		id->id_NumBlocks		= 1;
		id->id_NumBlocksUsed	= 1;
		id->id_BytesPerBlock	= 512;
		id->id_DiskType			= ID_NO_DISK_PRESENT;

		error = map_errno_to_ioerr(error);
		result = DOSFALSE;
	}

	SHOWVALUE(id->id_NumBlocks);
	SHOWVALUE(id->id_NumBlocksUsed);
	SHOWVALUE(id->id_BytesPerBlock);
	SHOWVALUE(id->id_DiskType);
	SHOWVALUE(id->id_VolumeNode);
	SHOWVALUE(id->id_InUse);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

static LONG
Action_Info(
	const struct MsgPort *	user,
	struct FileLock *		lock,
	struct InfoData *		id,
	LONG *					error_ptr)
{
	struct LockNode * ln;
	LONG result = DOSFALSE;
	LONG error = OK;

	ENTER();

	SHOWVALUE(lock);

	/* We need to check if the lock matches the volume node. However,
	 * a NULL lock is valid, too.
	 */
	if(lock != NULL && lock->fl_Volume != MKBADDR(VolumeNode))
	{
		SHOWMSG("volume node does not match");

		error = ERROR_NO_DISK;
		goto out;
	}

	ln = (struct LockNode *)lock->fl_Key;

	if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
	{
		SHOWMSG("lock doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	ln->ln_LastUser = user;

	result = Action_DiskInfo(id,error_ptr);

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_ExamineObject(
	const struct MsgPort *	user,
	struct FileLock *		lock,
	struct FileInfoBlock *	fib,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	int error = OK;

	ENTER();

	SHOWVALUE(lock);

	memset(fib,0,sizeof(*fib));

	fib->fib_DiskKey = -1;

	if(lock == NULL)
	{
		const TEXT * volume_name = BADDR(VolumeNode->dol_Name);
		int len = volume_name[0];

		SHOWMSG("ZERO root lock");

		ASSERT( len < (int)sizeof(fib->fib_FileName) );

		memcpy(&fib->fib_FileName[1],&volume_name[1],len);
		fib->fib_FileName[0] = len;

		fib->fib_DirEntryType	= ST_ROOT;
		fib->fib_EntryType		= ST_ROOT;
		fib->fib_NumBlocks		= 1;
		fib->fib_Date			= VolumeNode->dol_misc.dol_volume.dol_VolumeDate;
		fib->fib_Protection		= FIBF_OTR_READ|FIBF_OTR_EXECUTE|FIBF_OTR_WRITE|FIBF_OTR_DELETE|
								  FIBF_GRP_READ|FIBF_GRP_EXECUTE|FIBF_GRP_WRITE|FIBF_GRP_DELETE;
	}
	else
	{
		struct LockNode * ln = (struct LockNode *)lock->fl_Key;
		LONG seconds;
		smba_stat_t st;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		if(smba_getattr(ln->ln_File,&st,&error) < 0)
		{
			SHOWMSG("information not available");

			error = map_errno_to_ioerr(error);
			goto out;
		}

		seconds = st.mtime;

		seconds -= UNIX_TIME_OFFSET + get_time_zone_delta();
		if(seconds < 0)
			seconds = 0;

		fib->fib_Date.ds_Days	= (seconds / (24 * 60 * 60));
		fib->fib_Date.ds_Minute	= (seconds % (24 * 60 * 60)) / 60;
		fib->fib_Date.ds_Tick	= (seconds % 60) * TICKS_PER_SECOND;

		D(("ln->ln_FullName = '%s'",escape_name(ln->ln_FullName)));

		if(strcmp(ln->ln_FullName,SMB_ROOT_DIR_NAME) == SAME)
		{
			const TEXT * volume_name = BADDR(VolumeNode->dol_Name);
			int len = volume_name[0];

			SHOWMSG("root lock");

			ASSERT( len < (int)sizeof(fib->fib_FileName) );

			memcpy(&fib->fib_FileName[1],&volume_name[1],len);
			fib->fib_FileName[0] = len;

			fib->fib_DirEntryType	= ST_ROOT;
			fib->fib_EntryType		= ST_ROOT;
			fib->fib_NumBlocks		= 1;
			fib->fib_DiskKey		= 0;
			fib->fib_Protection		= FIBF_OTR_READ|FIBF_OTR_EXECUTE|FIBF_OTR_WRITE|FIBF_OTR_DELETE|
									  FIBF_GRP_READ|FIBF_GRP_EXECUTE|FIBF_GRP_WRITE|FIBF_GRP_DELETE;
		}
		else
		{
			QUAD size_quad;
			QUAD num_blocks_quad;
			TEXT translated_name[MAX_FILENAME_LEN+1];
			const TEXT * name;
			int name_len;

			name = get_base_name(ln->ln_FullName,strlen(ln->ln_FullName));
			name_len = strlen(name);

			if(NOT ServerData->server.unicode_enabled)
			{
				if(name_len >= (int)sizeof(translated_name))
				{
					D(("name is too long (%ld >= %ld)", name_len, sizeof(translated_name)));

					error = ERROR_INVALID_COMPONENT_NAME;
					goto out;
				}

				/* Length includes the terminating NUL byte. */
				memcpy(translated_name,name,name_len+1);

				error = translate_smb_name_to_amiga_name(translated_name,name_len,sizeof(translated_name));
				if(error != OK)
				{
					D(("name is not acceptable"));
					goto out;
				}

				name = translated_name;
				name_len = strlen(name);
			}

			/* Check if this is a usable Amiga file or directory name. */
			error = validate_amigados_file_name(name, name_len);
			if(error != OK)
			{
				D(("name contains unacceptable characters"));
				goto out;
			}

			/* Will the name fit? */
			if(name_len >= (int)sizeof(fib->fib_FileName))
			{
				D(("name is too long (%ld >= %ld)", name_len, sizeof(fib->fib_FileName)));

				error = ERROR_INVALID_COMPONENT_NAME;
				goto out;
			}

			/* Store the file/directory name in the form expected
			 * by dos.library.
			 */
			convert_from_c_to_bcpl_string(fib->fib_FileName,sizeof(fib->fib_FileName),name,name_len);

			/* We pretend that the volume uses 512 bytes per
			 * block (or in SMB terms: the sector size is
			 * 512 bytes). The conversion is a bit elaborate
			 * here...
			 */
			size_quad.Low	= st.size_low;
			size_quad.High	= st.size_high;

			/* Round up when dividing by 512. */
			add_64_plus_32_to_64(&size_quad,511,&num_blocks_quad);
			divide_64_by_32(&num_blocks_quad,512,&num_blocks_quad);

			fib->fib_DirEntryType	= st.is_dir ? ST_USERDIR : ST_FILE;
			fib->fib_EntryType		= fib->fib_DirEntryType;
			fib->fib_NumBlocks		= num_blocks_quad.Low;
			fib->fib_Size			= truncate_64_bit_position(&size_quad);
			fib->fib_Protection		= FIBF_OTR_READ|FIBF_OTR_EXECUTE|FIBF_OTR_WRITE|FIBF_OTR_DELETE|
									  FIBF_GRP_READ|FIBF_GRP_EXECUTE|FIBF_GRP_WRITE|FIBF_GRP_DELETE;

			if(st.is_read_only)
			{
				fib->fib_Protection &= ~(FIBF_OTR_DELETE|FIBF_GRP_DELETE);
				fib->fib_Protection |= FIBF_DELETE;
			}

			/* Careful: the 'archive' attribute has exactly the opposite
			 *          meaning in the Amiga and the SMB worlds.
			 */
			if(NOT st.is_changed_since_last_archive)
				fib->fib_Protection |= FIBF_ARCHIVE;

			if(st.is_dir)
				fib->fib_DiskKey = 0;
		}
	}

	result = DOSTRUE;

	D(("fib->fib_FileName = \"%b\"",MKBADDR(fib->fib_FileName)));
	SHOWVALUE(fib->fib_DirEntryType);
	SHOWVALUE(fib->fib_NumBlocks);
	SHOWVALUE(fib->fib_Size);
	SHOWVALUE(fib->fib_Date.ds_Days);
	SHOWVALUE(fib->fib_Date.ds_Minute);
	SHOWVALUE(fib->fib_Date.ds_Tick);
	SHOWVALUE(fib->fib_DiskKey);

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

/* Check if the name is acceptable as an Amiga file name. Note
 * that we do not check the length.
 */
static BOOL
name_is_acceptable(const TEXT * name)
{
	BOOL result = FALSE;
	int c;

	c = name[0];

	/* Empty names are not acceptable. */
	if(c == '\0')
		goto out;

	/* This takes care of "." and "..". */
	if(c == '.' && (name[1] == '\0' || (name[1] == '.' && name[2] == '\0')))
		goto out;

	/* Now for embedded '/', ':' and '\' characters. */
	while((c = (*name++)) != '\0')
	{
		if(c == '/' || c == ':' || c == SMB_PATH_SEPARATOR)
			goto out;
	}

	result = TRUE;

 out:

	return(result);
}

/****************************************************************************/

static int
dir_scan_callback_func_exnext(
	struct FileInfoBlock *	fib,
	int						unused_fpos,
	int						nextpos,
	const TEXT *			name,
	int						eof,
	smba_stat_t *			st)
{
	int result = 0;
	int name_len;
	LONG seconds;
	QUAD size_quad;
	QUAD num_blocks_quad;
	TEXT translated_name[MAX_FILENAME_LEN+1];

	ENTER();

	#if DEBUG
	{
		QUAD st_size_quad;

		st_size_quad.Low	= st->size_low;
		st_size_quad.High	= st->size_high;

		D((" '%s'",escape_name(name)));
		D(("   is_dir=%ld is_read_only=%ld is_hidden=%ld size=%s", st->is_dir,st->is_read_only,st->is_hidden,convert_quad_to_string(&st_size_quad)));
		D(("   nextpos=%ld eof=%ld",nextpos,eof));
	}
	#endif /* DEBUG */

	/* Skip file and drawer names that we wouldn't be
	 * able to handle in the first place.
	 */
	if(NOT name_is_acceptable(name))
	{
		D(("   name is not acceptable"));
		goto out;
	}

	if(st->is_hidden && OmitHidden)
	{
		D(("   ignoring hidden directory entry"));
		goto out;
	}

	name_len = strlen(name);

	if(NOT ServerData->server.unicode_enabled)
	{
		if(name_len >= (int)sizeof(translated_name))
		{
			D(("   name is too long (%ld >= %ld)", name_len, sizeof(translated_name)));
			goto out;
		}

		/* Length includes the terminating NUL byte. */
		memcpy(translated_name,name,name_len+1);

		if(translate_smb_name_to_amiga_name(translated_name,name_len,sizeof(translated_name)) != OK)
		{
			D(("   name is not acceptable"));
			goto out;
		}

		name = translated_name;
		name_len = strlen(name);
	}

	/* Check if this is a usable Amiga file or directory name. */
	if(validate_amigados_file_name(name, name_len) != OK)
	{
		D(("   name contains unacceptable characters"));
		goto out;
	}

	/* Will the name fit? */
	if(name_len >= (int)sizeof(fib->fib_FileName))
	{
		D(("   name is too long (%ld >= %ld)", name_len, sizeof(fib->fib_FileName)));
		goto out;
	}

	/* Store the file/directory name in the form expected
	 * by dos.library.
	 */
	convert_from_c_to_bcpl_string(fib->fib_FileName,sizeof(fib->fib_FileName),name,name_len);

	D(("   final name = '%b'", MKBADDR(fib->fib_FileName)));

	/* Convert the size of the file into blocks, with 512 bytes per block. */
	size_quad.Low	= st->size_low;
	size_quad.High	= st->size_high;

	/* Round up when dividing by 512. */
	add_64_plus_32_to_64(&size_quad,511,&num_blocks_quad);
	divide_64_by_32(&num_blocks_quad,512,&num_blocks_quad);

	fib->fib_DirEntryType	= st->is_dir ? ST_USERDIR : ST_FILE;
	fib->fib_EntryType		= fib->fib_DirEntryType;
	fib->fib_NumBlocks		= num_blocks_quad.Low;
	fib->fib_Size			= truncate_64_bit_position(&size_quad);
	fib->fib_Protection		= FIBF_OTR_READ|FIBF_OTR_EXECUTE|FIBF_OTR_WRITE|FIBF_OTR_DELETE|
							  FIBF_GRP_READ|FIBF_GRP_EXECUTE|FIBF_GRP_WRITE|FIBF_GRP_DELETE;

	if(st->is_read_only)
		fib->fib_Protection ^= (FIBF_OTR_DELETE|FIBF_GRP_DELETE|FIBF_DELETE);

	/* Careful: the 'archive' attribute has exactly the opposite
	 *          meaning in the Amiga (= was archived) and the SMB
	 *          worlds (= needs to be archived), respectively.
	 */
	if(NOT st->is_changed_since_last_archive)
		fib->fib_Protection |= FIBF_ARCHIVE;

	/* If modification time is 0 use creation time instead (cyfm 2009-03-18). */
	seconds = (st->mtime == 0 ? st->ctime : st->mtime);

	seconds -= UNIX_TIME_OFFSET + get_time_zone_delta();
	if(seconds < 0)
		seconds = 0;

	fib->fib_Date.ds_Days	= (seconds / (24 * 60 * 60));
	fib->fib_Date.ds_Minute	= (seconds % (24 * 60 * 60)) / 60;
	fib->fib_Date.ds_Tick	= (seconds % 60) * TICKS_PER_SECOND;

	result = 1;

 out:

	fib->fib_DiskKey = eof ? -1 : nextpos;

	RETURN(result);
	return(result);
}

static LONG
Action_ExamineNext(
	const struct MsgPort *	user,
	struct FileLock *		lock,
	struct FileInfoBlock *	fib,
	LONG *					error_ptr)
{
	struct LockNode * ln;
	LONG result = DOSFALSE;
	int error = OK;
	long offset;
	int count;

	ENTER();

	SHOWVALUE(lock);

	if(fib->fib_DiskKey == -1)
	{
		SHOWMSG("scanning finished.");
		error = ERROR_NO_MORE_ENTRIES;
		goto out;
	}

	if(lock == NULL)
	{
		SHOWMSG("invalid lock");

		fib->fib_DiskKey = -1;

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	ln = (struct LockNode *)lock->fl_Key;

	if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
	{
		SHOWMSG("lock doesn't look right");

		fib->fib_DiskKey = -1;

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	ln->ln_LastUser = user;

	/* Check if we should restart scanning the directory
	 * contents. This is tricky at best and may produce
	 * irritating results :(
	 */
	if(ln->ln_RestartExamine)
	{
		offset = 0;

		ln->ln_RestartExamine = FALSE;
	}
	else
	{
		offset = fib->fib_DiskKey;
	}

	memset(fib,0,sizeof(*fib));

	SHOWMSG("calling 'smba_readdir'");
	SHOWVALUE(offset);

	count = smba_readdir(ln->ln_File,offset,fib,(smba_callback_t)dir_scan_callback_func_exnext,&error);

	SHOWVALUE(count);

	if(error == OK && (count == 0 || fib->fib_FileName[0] == '\0'))
	{
		SHOWMSG("nothing to be read");
		fib->fib_DiskKey = -1;

		error = ERROR_NO_MORE_ENTRIES;
		goto out;
	}
	else if (error != OK)
	{
		SHOWMSG("error whilst scanning");
		SHOWVALUE(error);
		fib->fib_DiskKey = -1;

		error = map_errno_to_ioerr(error);
		goto out;
	}

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

struct ExAllContext
{
	struct ExAllData *		ec_Last;
	struct ExAllData *		ec_Next;
	int						ec_BytesLeft;
	int						ec_MinSize;
	struct ExAllControl *	ec_Control;
	ULONG					ec_Type;
	LONG					ec_Error;
	BOOL					ec_FirstAttempt;
};

static int
dir_scan_callback_func_exall(
	struct ExAllContext *	ec,
	int						unused_fpos,
	int						nextpos,
	const TEXT *			name,
	int						eof,
	smba_stat_t *			st)
{
	TEXT translated_name[MAX_FILENAME_LEN+1];
	BOOL ignore_this_entry = FALSE;
	int name_len = -1;
	int result = 0;

	ENTER();

	#if DEBUG
	{
		QUAD st_size_quad;

		st_size_quad.Low	= st->size_low;
		st_size_quad.High	= st->size_high;

		D((" '%s'",escape_name(name)));
		D(("   is_dir=%ld is_read_only=%ld is_hidden=%ld size=%s", st->is_dir,st->is_read_only,st->is_hidden,convert_quad_to_string(&st_size_quad)));
		D(("   nextpos=%ld eof=%ld",nextpos,eof));
	}
	#endif /* DEBUG */

	/* Skip file and drawer names that we wouldn't be
	 * able to handle in the first place.
	 */
	if (NOT name_is_acceptable(name))
	{
		D(("   name is not acceptable"));
		ignore_this_entry = TRUE;
	}
	else if (st->is_hidden && OmitHidden)
	{
		D(("   ignoring hidden directory entry"));
		ignore_this_entry = TRUE;
	}
	else if (NOT ServerData->server.unicode_enabled)
	{
		name_len = strlen(name);

		if(name_len < (int)sizeof(translated_name))
		{
			/* Length includes the terminating NUL byte. */
			memcpy(translated_name,name,name_len+1);

			if(translate_smb_name_to_amiga_name(translated_name,name_len,sizeof(translated_name)) == OK)
			{
				name = translated_name;
				name_len = strlen(name);
			}
			else
			{
				D(("   name cannot be translated"));

				ignore_this_entry = TRUE;
			}
		}
		else
		{
			D(("   name is too long (%ld >= %ld)", name_len, sizeof(translated_name)));

			ignore_this_entry = TRUE;
		}
	}

	/* Check if this is a usable Amiga file or directory name. */
	if(NOT ignore_this_entry)
	{
		if(name_len == -1)
			name_len = strlen(name);

		if(validate_amigados_file_name(name, name_len) != OK)
		{
			D(("   final name contains unacceptable characters"));

			ignore_this_entry = TRUE;
		}
	}

	/* Skip file and drawer names that we wouldn't be
	 * able to handle in the first place.
	 */
	if(NOT ignore_this_entry)
	{
		ULONG type = ec->ec_Type;
		struct ExAllData * ed;
		int ed_size;

		if(name_len == -1)
			name_len = strlen(name);

		/* Figure out how large this entry needs to be, and
		 * if necessary stop processing if there is not enough
		 * room left to store it.
		 */
		ed_size = ec->ec_MinSize + name_len+1;

		if(ec->ec_Next == NULL || ed_size > ec->ec_BytesLeft)
		{
			D(("Not enough room to return this entry: size %ld > ec->ec_BytesLeft %ld",ed_size,ec->ec_BytesLeft));

			/* If this is the first directory entry,
			 * stop the entire process before it has
			 * really begun.
			 */
			if(ec->ec_FirstAttempt)
			{
				SHOWMSG("this was the first read attempt -- aborting");
				ec->ec_Control->eac_Entries = 0;
				ec->ec_Error = ERROR_NO_FREE_STORE;
			}
			else
			{
				SHOWMSG("the caller should try again");
				ec->ec_Error = 0;
			}

			result = 1;
			goto out;
		}

		/* Fill in this entry. */
		ed = ec->ec_Next;

		/* Until we know better, assume that this will be
		 * the last list entry.
		 */
		ed->ed_Next = NULL;

		/* Copy the name, including the terminating NUL byte. */
		ed->ed_Name = (STRPTR)(((ULONG)ed) + ec->ec_MinSize);
		memcpy(ed->ed_Name,name,name_len+1);

		/* Fill in as many records as were requested. */
		if(type >= ED_TYPE)
			ed->ed_Type = st->is_dir ? ST_USERDIR : ST_FILE;

		if(type >= ED_SIZE)
		{
			QUAD size_quad;

			size_quad.Low	= st->size_low;
			size_quad.High	= st->size_high;

			ed->ed_Size = truncate_64_bit_position(&size_quad);
		}

		if(type >= ED_PROTECTION)
		{
			ed->ed_Prot = FIBF_OTR_READ|FIBF_OTR_EXECUTE|FIBF_OTR_WRITE|FIBF_OTR_DELETE|
			              FIBF_GRP_READ|FIBF_GRP_EXECUTE|FIBF_GRP_WRITE|FIBF_GRP_DELETE;

			if(st->is_read_only)
				ed->ed_Prot ^= (FIBF_OTR_DELETE|FIBF_GRP_DELETE|FIBF_DELETE);

			/* Careful: the 'archive' attribute has exactly the opposite
			 *          meaning in the Amiga and the SMB worlds.
			 */
			if(NOT st->is_changed_since_last_archive)
				ed->ed_Prot |= FIBF_ARCHIVE;
		}

		if(type >= ED_DATE)
		{
			LONG seconds;

			/* If modification time is 0 use creation time instead (cyfm 2009-03-18). */
			seconds = (st->mtime == 0 ? st->ctime : st->mtime);

			seconds -= UNIX_TIME_OFFSET + get_time_zone_delta();
			if(seconds < 0)
				seconds = 0;

			ed->ed_Days		= (seconds / (24 * 60 * 60));
			ed->ed_Mins		= (seconds % (24 * 60 * 60)) / 60;
			ed->ed_Ticks	= (seconds % 60) * TICKS_PER_SECOND;
		}

		if(type >= ED_COMMENT)
			ed->ed_Comment = "";

		if(type >= ED_OWNER)
			ed->ed_OwnerUID = ed->ed_OwnerGID = 0;

		if(ec->ec_Control->eac_MatchString != NULL)
		{
			D(("checking name against match string '%s'", ec->ec_Control->eac_MatchString));

			if(NOT MatchPatternNoCase(ec->ec_Control->eac_MatchString,ed->ed_Name))
			{
				SHOWMSG("name does not match");
				ignore_this_entry = TRUE;
			}
		}

		if(!ignore_this_entry && ec->ec_Control->eac_MatchFunc != NULL)
		{
			SHOWMSG("checking if match function accepts the entry");

			/* NOTE: the order of the parameters passed to the match hook
			 *       function can be somewhat confusing. For standard
			 *       hook functions, the order of the parameters and the
			 *       registers they go into is hook=A0, object=A2,
			 *       message=A1. However, the documentation for the 'ExAll()'
			 *       function always lists them in ascending order, that is
			 *       hook=A0, message=A1, object=A2, which can lead to
			 *       quite some confusion and strange errors.
			 */
			if(NOT CallHookPkt(ec->ec_Control->eac_MatchFunc,&type,ed))
			{
				SHOWMSG("match function rejected the entry");

				ignore_this_entry = TRUE;
			}
		}

		if(!ignore_this_entry)
		{
			SHOWMSG("registering new entry");

			/* Link the previous entry to the current one. */
			if(ec->ec_Last != NULL)
				ec->ec_Last->ed_Next = ed;

			/* All entries need to begin on a word-aligned address,
			 * which means that we need to pad the entry size to
			 * a multiple of 2.
			 */
			if((ed_size % 2) > 0)
				ed_size++;

			/* Note: due to the padding byte the number of bytes
			 *       left may become negative.
			 */
			ec->ec_BytesLeft -= ed_size;

			ec->ec_Next = ec->ec_BytesLeft > 0 ? (struct ExAllData *)(((ULONG)ed) + ed_size) : NULL;
			ec->ec_Last = ed;

			ec->ec_Control->eac_Entries++;

			SHOWVALUE(ec->ec_Last->ed_Next);
			D(("ed->ed_Name = '%s'", ed->ed_Name));
		}
	}

	ec->ec_Control->eac_LastKey = (ULONG)(eof ? -1 : nextpos);

 out:

	ec->ec_FirstAttempt = FALSE;

	RETURN(result);
	return(result);
}

static LONG
Action_ExamineAll(
	const struct MsgPort *	last_user,
	struct FileLock *		lock,
	struct ExAllData *		ed,
	LONG					size,
	ULONG					type,
	struct ExAllControl *	eac,
	LONG *					error_ptr)
{
	struct ExAllContext ec;
	struct LockNode * ln;
	LONG result = DOSFALSE;
	int error = OK;
	LONG offset;
	int count;

	ENTER();

	SHOWVALUE(lock);

	SHOWVALUE(eac->eac_LastKey);

	eac->eac_Entries = 0;

	if(size < (LONG)sizeof(ed->ed_Next))
	{
		SHOWMSG("buffer is far too short.");
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	ed->ed_Next = NULL;

	if(eac->eac_LastKey == (ULONG)-1)
	{
		SHOWMSG("scanning finished.");
		error = ERROR_NO_MORE_ENTRIES;
		goto out;
	}

	if(lock == NULL)
	{
		SHOWMSG("invalid lock");
		error = ERROR_INVALID_LOCK;
		goto out;
	}

	if(type < ED_NAME || type > ED_OWNER)
	{
		D(("type %ld not supported",type));
		error = ERROR_BAD_NUMBER;
		goto out;
	}

	SHOWVALUE(type);

	memset(&ec,0,sizeof(ec));

	ec.ec_Next			= ed;
	ec.ec_BytesLeft		= size;
	ec.ec_Control		= eac;
	ec.ec_Type			= type;
	ec.ec_Error			= ERROR_NO_MORE_ENTRIES;
	ec.ec_FirstAttempt	= TRUE;

	switch(type)
	{
		case ED_NAME:

			ec.ec_MinSize = offsetof(struct ExAllData,ed_Type);
			break;

		case ED_TYPE:

			ec.ec_MinSize = offsetof(struct ExAllData,ed_Size);
			break;

		case ED_SIZE:

			ec.ec_MinSize = offsetof(struct ExAllData,ed_Prot);
			break;

		case ED_PROTECTION:

			ec.ec_MinSize = offsetof(struct ExAllData,ed_Days);
			break;

		case ED_DATE:

			ec.ec_MinSize = offsetof(struct ExAllData,ed_Comment);
			break;

		case ED_COMMENT:

			ec.ec_MinSize = offsetof(struct ExAllData,ed_OwnerUID);
			break;

		case ED_OWNER:

			ec.ec_MinSize = sizeof(struct ExAllData);
			break;
	}

	SHOWVALUE(ec.ec_MinSize);

	offset = eac->eac_LastKey;

	ln = (struct LockNode *)lock->fl_Key;

	if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
	{
		SHOWMSG("lock doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	ln->ln_LastUser = last_user;

	/* Check if we should restart scanning the directory
	 * contents. This is tricky at best and may produce
	 * irritating results :(
	 */
	if(ln->ln_RestartExamine)
	{
		offset = 0;

		ln->ln_RestartExamine = FALSE;
	}

	if(offset == 0)
	{
		smba_stat_t st;

		SHOWMSG("first invocation");

		SHOWMSG("getting file attributes");
		if(smba_getattr(ln->ln_File,&st,&error) < 0)
		{
			SHOWMSG("didn't work");
			error = map_errno_to_ioerr(error);

			eac->eac_LastKey = (ULONG)-1;

			goto out;
		}

		if(NOT st.is_dir)
		{
			SHOWMSG("lock does not refer to a directory");
			error = ERROR_OBJECT_WRONG_TYPE;

			eac->eac_LastKey = (ULONG)-1;

			goto out;
		}
	}

	SHOWMSG("calling 'smba_readdir'");
	SHOWVALUE(offset);

	count = smba_readdir(ln->ln_File,offset,&ec,(smba_callback_t)dir_scan_callback_func_exall,&error);

	SHOWVALUE(count);

	if(error == OK && (count == 0 || eac->eac_Entries == 0))
	{
		SHOWMSG("nothing to be read");
		if(ec.ec_Error != OK)
		{
			SHOWMSG("flagging an error");
			SHOWVALUE(ec.ec_Error);

			eac->eac_LastKey = (ULONG)-1;

			error = ec.ec_Error;
		}

		goto out;
	}
	else if (error != OK)
	{
		SHOWMSG("error whilst scanning");

		eac->eac_LastKey = (ULONG)-1;

		error = map_errno_to_ioerr(error);
		goto out;
	}

	SHOWMSG("ok");
	result = DOSTRUE;

 out:

	#if DEBUG
	{
		SHOWVALUE(eac->eac_Entries);

		while(ed != NULL)
		{
			SHOWSTRING(ed->ed_Name);

			ed = ed->ed_Next;
		}
	}
	#endif /* DEBUG */

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_Find(
	const struct MsgPort *	user,
	LONG					action,
	struct FileHandle *		fh,
	struct FileLock *		parent,
	const void *			bcpl_name,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	STRPTR parent_path = NULL;
	STRPTR full_name = NULL;
	struct FileNode * fn = NULL;
	const TEXT * parent_name;
	TEXT name[MAX_FILENAME_LEN+1];
	STRPTR temp = NULL;
	smba_stat_t st;
	int error;

	ENTER();

	switch(action)
	{
		case ACTION_FINDINPUT:

			D(("ACTION_FINDINPUT [Open(\"%b\",MODE_OLDFILE)]",MKBADDR(bcpl_name)));
			break;

		case ACTION_FINDOUTPUT:

			D(("ACTION_FINDOUTPUT [Open(\"%b\",MODE_NEWFILE)]",MKBADDR(bcpl_name)));
			break;

		case ACTION_FINDUPDATE:

			D(("ACTION_FINDUPDATE [Open(\"%b\",MODE_READWRITE)]",MKBADDR(bcpl_name)));
			break;
	}

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		struct LockNode * ln = (struct LockNode *)parent->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		parent_name = ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	if(is_reserved_name(FilePart(name)))
	{
		error = ERROR_OBJECT_NOT_FOUND;
		goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to open the root directory? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_WRONG_TYPE;

		goto out;
	}

	fn = allocate_memory(sizeof(*fn));
	if(fn == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(fn,0,sizeof(*fn));

	fn->fn_Handle	= fh;
	fn->fn_Magic	= ID_SMB_DISK;
	fn->fn_FullName	= full_name;
	fn->fn_Mode		= (action == ACTION_FINDINPUT) ? SHARED_LOCK : EXCLUSIVE_LOCK;

	error = check_access_mode_collision(full_name,fn->fn_Mode);
	if(error != OK)
		goto out;

	D(("full_name = '%s'",escape_name(full_name)));

	/* Create a new file, or truncate an existing file? */
	if(action == ACTION_FINDOUTPUT)
	{
		STRPTR dir_name,base_name;
		smba_file_t * dir;

		if(WriteProtected)
		{
			error = ERROR_DISK_WRITE_PROTECTED;
			goto out;
		}

		error = split_path_name(full_name,strlen(full_name),&temp,&dir_name,&base_name);
		if(error != OK)
		{
			D(("could not split path '%s'",escape_name(full_name)));
			goto out;
		}

		SHOWMSG("creating a file; finding parent path first");
		D(("dir_name = '%s'",escape_name(dir_name)));

		if(smba_open(ServerData,dir_name,open_read_only,open_dont_truncate,&dir,&error) < 0)
		{
			error = map_errno_to_ioerr(error);
			goto out;
		}

		SHOWMSG("now trying to create the file");
		D(("base name = '%s'",escape_name(base_name)));

		if(smba_create(dir,base_name,&error) < 0)
		{
			SHOWMSG("didn't work.");
			SHOWVALUE(error);

			smba_close(ServerData,dir);

			error = map_errno_to_ioerr(error);

			SHOWVALUE(error);

			goto out;
		}

		SHOWMSG("good.");

		smba_close(ServerData,dir);
	}

	/* Open the file for read access if ACTION_FINDINPUT is used,
	 * and for write access for ACTION_FINDOUTPUT/ACTION_FINDUPDATE.
	 */
	if(smba_open(ServerData,full_name,(action != ACTION_FINDINPUT),open_dont_truncate,&fn->fn_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	/* Make sure that we ended opening a file, and not a directory.
	 * Embarrassing questions might otherwise be asked later...
	 */
	if(smba_getattr(fn->fn_File,&st,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	if(st.is_dir)
	{
		D(("ouch: '%s' is a directory, not a file",escape_name(full_name)));

		error = ERROR_OBJECT_WRONG_TYPE;
		goto out;
	}

	fh->fh_Arg1 = (LONG)fn;

	AddTail((struct List *)&FileList,(struct Node *)fn);
	result = DOSTRUE;

	full_name = NULL;
	fn = NULL;

 out:

	free_memory(temp);
	free_memory(full_name);
	free_memory(fn);
	free_memory(parent_path);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_Read(
	struct FileNode *	fn,
	APTR				mem,
	LONG				length,
	LONG *				error_ptr)
{
	LONG result = 0;
	int error = OK;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	SHOWVALUE(length);

	if(length > 0)
	{
		result = smba_read(fn->fn_File,mem,length,&fn->fn_OffsetQuad,&error);
		if(result < 0)
		{
			error = map_errno_to_ioerr(error);

			result = -1;
			goto out;
		}

		add_64_plus_32_to_64(&fn->fn_OffsetQuad, result, &fn->fn_OffsetQuad);
	}

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_Write(
	struct FileNode *	fn,
	APTR				mem,
	LONG				length,
	LONG *				error_ptr)
{
	LONG result = DOSFALSE;
	int error = OK;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	SHOWVALUE(length);

	if(length > 0)
	{
		result = smba_write(fn->fn_File,mem,length,&fn->fn_OffsetQuad,&error);
		if(result < 0)
		{
			error = map_errno_to_ioerr(error);

			result = -1;
			goto out;
		}

		add_64_plus_32_to_64(&fn->fn_OffsetQuad, result, &fn->fn_OffsetQuad);
	}

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_End(
	struct FileNode *	which_fn,
	LONG *				error_ptr)
{
	LONG result = DOSFALSE;
	struct FileNode * fn;
	struct FileNode * found;
	int error = OK;

	if(which_fn == NULL || which_fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	found = NULL;

	for(fn = (struct FileNode *)FileList.mlh_Head ;
	    fn->fn_MinNode.mln_Succ != NULL ;
	    fn = (struct FileNode *)fn->fn_MinNode.mln_Succ)
	{
		if(fn == which_fn)
		{
			found = fn;
			break;
		}
	}

	if(found == NULL)
	{
		SHOWMSG("file not known");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	Remove((struct Node *)found);

	smba_close(ServerData,found->fn_File);

	found->fn_Magic = 0;

	free_memory(found->fn_FullName);
	free_memory(found);

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	return(result);
}

/****************************************************************************/

static LONG
Action_Seek(
	struct FileNode *	fn,
	LONG				position,
	LONG				mode,
	LONG *				error_ptr)
{
	QUAD previous_position_quad;
	QUAD reference_position_quad;
	QUAD new_position_quad;
	LONG result = -1;
	smba_stat_t st;
	int error;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	previous_position_quad = fn->fn_OffsetQuad;

	switch(mode)
	{
		case OFFSET_BEGINNING:

			reference_position_quad.Low		= 0;
			reference_position_quad.High	= 0;

			break;

		case OFFSET_CURRENT:

			reference_position_quad = fn->fn_OffsetQuad;

			break;

		case OFFSET_END:

			if(smba_getattr(fn->fn_File,&st,&error) < 0)
			{
				error = map_errno_to_ioerr(error);
				goto out;
			}

			reference_position_quad.Low		= st.size_low;
			reference_position_quad.High	= st.size_high;

			break;

		default:

			error = ERROR_ACTION_NOT_KNOWN;
			goto out;
	}

	if(position < 0)
	{
		QUAD position_quad;

		position_quad.Low	= -position;
		position_quad.High	= 0;

		/* We cannot seek back beyond the beginning of the file. */
		if(compare_64_to_64(&reference_position_quad,&position_quad) < 0)
		{
			error = ERROR_SEEK_ERROR;
			goto out;
		}

		subtract_64_from_64_to_64(&reference_position_quad,&position_quad,&new_position_quad);
	}
	else
	{
		/* Careful, we need to check for overflow, too. */
		if(add_64_plus_32_to_64(&reference_position_quad,position,&new_position_quad) > 0)
		{
			error = ERROR_SEEK_ERROR;
			goto out;
		}
	}

	error = OK;

	fn->fn_OffsetQuad = new_position_quad;

	result = truncate_64_bit_position(&previous_position_quad);

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_SetFileSize(
	struct FileNode *	fn,
	LONG				position,
	LONG				mode,
	LONG *				error_ptr)
{
	QUAD previous_position_quad;
	QUAD reference_position_quad;
	QUAD new_position_quad;
	LONG result = -1;
	smba_stat_t st;
	int error;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	previous_position_quad = fn->fn_OffsetQuad;

	switch(mode)
	{
		case OFFSET_BEGINNING:

			reference_position_quad.Low		= 0;
			reference_position_quad.High	= 0;

			break;

		case OFFSET_CURRENT:

			reference_position_quad = fn->fn_OffsetQuad;

			break;

		case OFFSET_END:

			if(smba_getattr(fn->fn_File,&st,&error) < 0)
			{
				error = map_errno_to_ioerr(error);
				goto out;
			}

			reference_position_quad.Low		= st.size_low;
			reference_position_quad.High	= st.size_high;

			break;

		default:

			error = ERROR_ACTION_NOT_KNOWN;
			goto out;
	}

	if(position < 0)
	{
		QUAD position_quad;

		position_quad.Low	= -position;
		position_quad.High	= 0;

		/* We cannot seek back beyond the beginning of the file. */
		if(compare_64_to_64(&reference_position_quad,&position_quad) < 0)
		{
			error = ERROR_SEEK_ERROR;
			goto out;
		}

		subtract_64_from_64_to_64(&reference_position_quad,&position_quad,&new_position_quad);
	}
	else
	{
		/* Careful, we need to check for overflow, too. */
		if(add_64_plus_32_to_64(&reference_position_quad,position,&new_position_quad) > 0)
		{
			error = ERROR_SEEK_ERROR;
			goto out;
		}
	}

	if(smba_setattr(fn->fn_File,NULL,&new_position_quad,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	error = OK;

	/* If the current seek position reaches beyond the new
	 * size of the file, move it to the end of the file.
	 */
	if(compare_64_to_64(&fn->fn_OffsetQuad,&new_position_quad) > 0)
		fn->fn_OffsetQuad = new_position_quad;

	result = truncate_64_bit_position(&previous_position_quad);

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_SetDate(
	const struct MsgPort *		user,
	struct FileLock *			parent,
	const void *				bcpl_name,
	const struct DateStamp *	ds,
	LONG *						error_ptr)
{
	LONG result = DOSFALSE;
	STRPTR full_name = NULL;
	smba_file_t * file = NULL;
	const TEXT * parent_name;
	TEXT name[MAX_FILENAME_LEN+1];
	smba_stat_t st;
	LONG seconds;
	int error;

	ENTER();

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		struct LockNode * ln = (struct LockNode *)parent->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		parent_name = ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	D(("name = '%b'",MKBADDR(bcpl_name)));

	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to change the date of the root directory? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_IN_USE;

		goto out;
	}

	D(("full_name = '%s'",escape_name(full_name)));

	if(smba_open(ServerData,full_name,open_writable,open_dont_truncate,&file,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	if(smba_getattr(file,&st,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	seconds = (ds->ds_Days * 24 * 60 + ds->ds_Minute) * 60 + (ds->ds_Tick / TICKS_PER_SECOND);

	memset(&st,0,sizeof(st));

	st.atime = -1;
	st.ctime = -1;
	st.mtime = seconds + UNIX_TIME_OFFSET + get_time_zone_delta();

	if(smba_setattr(file,&st,NULL,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	result = DOSTRUE;

 out:

	if(file != NULL)
		smba_close(ServerData,file);

	free_memory(full_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_ExamineFH(
	struct FileNode *		fn,
	struct FileInfoBlock *	fib,
	LONG *					error_ptr)
{
	QUAD size_quad;
	QUAD num_blocks_quad;
	LONG result = DOSFALSE;
	smba_stat_t st;
	int error;
	LONG seconds;
	TEXT translated_name[MAX_FILENAME_LEN+1];
	const TEXT * name;
	int name_len;

	ENTER();

	memset(fib,0,sizeof(*fib));

	fib->fib_DiskKey = -1;

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	if(smba_getattr(fn->fn_File,&st,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}
	
	name = get_base_name(fn->fn_FullName,strlen(fn->fn_FullName));
	name_len = strlen(name);

	if(NOT ServerData->server.unicode_enabled)
	{
		if(name_len >= (int)sizeof(translated_name))
		{
			D(("name is too long (%ld >= %ld)", name_len, sizeof(translated_name)));

			error = ERROR_INVALID_COMPONENT_NAME;
			goto out;
		}

		/* Length includes the terminating NUL byte. */
		memcpy(translated_name,name,name_len+1);

		error = translate_smb_name_to_amiga_name(translated_name,name_len,sizeof(translated_name));
		if(error != OK)
		{
			D(("name is not acceptable"));
			goto out;
		}

		name = translated_name;
		name_len = strlen(name);
	}

	/* Check if this is a usable Amiga file or directory name. */
	error = validate_amigados_file_name(name, name_len);
	if(error != OK)
	{
		D(("name contains unacceptable characters"));
		goto out;
	}

	/* Will the name fit? */
	if(name_len >= (int)sizeof(fib->fib_FileName))
	{
		D(("name is too long (%ld >= %ld)", name_len, sizeof(fib->fib_FileName)));

		error = ERROR_INVALID_COMPONENT_NAME;
		goto out;
	}

	/* Store the file/directory name in the form expected
	 * by dos.library.
	 */
	convert_from_c_to_bcpl_string(fib->fib_FileName,sizeof(fib->fib_FileName),name,name_len);

	/* Convert the size of the file into blocks, with 512 bytes per block. */
	size_quad.Low	= st.size_low;
	size_quad.High	= st.size_high;

	/* Round up when dividing by 512. */
	add_64_plus_32_to_64(&size_quad,511,&num_blocks_quad);
	divide_64_by_32(&num_blocks_quad,512,&num_blocks_quad);

	fib->fib_DirEntryType	= ST_FILE;
	fib->fib_EntryType		= ST_FILE;
	fib->fib_NumBlocks		= num_blocks_quad.Low;
	fib->fib_Size			= truncate_64_bit_position(&size_quad);

	fib->fib_Protection		= FIBF_OTR_READ|FIBF_OTR_EXECUTE|FIBF_OTR_WRITE|FIBF_OTR_DELETE|
							  FIBF_GRP_READ|FIBF_GRP_EXECUTE|FIBF_GRP_WRITE|FIBF_GRP_DELETE;

	if(st.is_read_only)
		fib->fib_Protection ^= (FIBF_OTR_DELETE|FIBF_GRP_DELETE|FIBF_DELETE);

	/* Careful: the 'archive' attribute has exactly the opposite
	 *          meaning in the Amiga and the SMB worlds.
	 */
	if(NOT st.is_changed_since_last_archive)
		fib->fib_Protection |= FIBF_ARCHIVE;

	/* If modification time is 0 use creation time instead (cyfm 2009-03-18). */
	seconds = (st.mtime == 0 ? st.ctime : st.mtime);

	seconds -= UNIX_TIME_OFFSET + get_time_zone_delta();
	if(seconds < 0)
		seconds = 0;

	fib->fib_Date.ds_Days	= (seconds / (24 * 60 * 60));
	fib->fib_Date.ds_Minute	= (seconds % (24 * 60 * 60)) / 60;
	fib->fib_Date.ds_Tick	= (seconds % 60) * TICKS_PER_SECOND;

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static BPTR
Action_ParentFH(
	struct FileNode *	fn,
	LONG *				error_ptr)
{
	BPTR result = ZERO;
	struct LockNode * ln = NULL;
	int error;
	STRPTR parent_dir_name = NULL;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	error = get_parent_dir_name(fn->fn_FullName,strlen(fn->fn_FullName),&parent_dir_name);
	if(error != OK)
		goto out;

	ln = allocate_memory(sizeof(*ln));
	if(ln == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(ln,0,sizeof(*ln));

	ln->ln_FileLock.fl_Key		= (LONG)ln;
	ln->ln_Magic				= ID_SMB_DISK;
	ln->ln_FileLock.fl_Access	= SHARED_LOCK;
	ln->ln_FileLock.fl_Task		= FileSystemPort;
	ln->ln_FileLock.fl_Volume	= MKBADDR(VolumeNode);
	ln->ln_FullName				= parent_dir_name;

	D(("parent_dir_name = '%s'",escape_name(parent_dir_name)));

	if(smba_open(ServerData,parent_dir_name,open_read_only,open_dont_truncate,&ln->ln_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	AddTail((struct List *)&LockList,(struct Node *)ln);
	result = MKBADDR(&ln->ln_FileLock);
	SHOWVALUE(&ln->ln_FileLock);

	parent_dir_name = NULL;
	ln = NULL;

 out:

	free_memory(ln);
	free_memory(parent_dir_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static BPTR
Action_CopyDirFH(
	const struct MsgPort *	user,
	struct FileNode *		fn,
	LONG *					error_ptr)
{
	BPTR result = ZERO;
	struct LockNode * ln = NULL;
	STRPTR full_name = NULL;
	int full_name_len;
	int error;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	if(fn->fn_Mode != SHARED_LOCK)
	{
		error = ERROR_OBJECT_IN_USE;
		goto out;
	}

	full_name_len = strlen(fn->fn_FullName);

	full_name = allocate_memory(full_name_len+1);
	if(full_name == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	/* Length includes the terminating NUL byte. */
	memcpy(full_name,fn->fn_FullName,full_name_len+1);

	ln = allocate_memory(sizeof(*ln));
	if(ln == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(ln,0,sizeof(*ln));

	ln->ln_FileLock.fl_Key		= (LONG)ln;
	ln->ln_Magic				= ID_SMB_DISK;
	ln->ln_FileLock.fl_Access	= SHARED_LOCK;
	ln->ln_FileLock.fl_Task		= FileSystemPort;
	ln->ln_FileLock.fl_Volume	= MKBADDR(VolumeNode);
	ln->ln_FullName				= full_name;
	ln->ln_LastUser				= user;

	D(("full_name = '%s'",escape_name(full_name)));

	if (smba_open(ServerData,full_name,open_read_only,open_dont_truncate,&ln->ln_File,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	AddTail((struct List *)&LockList,(struct Node *)ln);
	result = MKBADDR(&ln->ln_FileLock);
	SHOWVALUE(&ln->ln_FileLock);

	full_name = NULL;
	ln = NULL;

 out:

	free_memory(ln);
	free_memory(full_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_FHFromLock(
	struct FileHandle *	fh,
	struct FileLock *	fl,
	LONG *				error_ptr)
{
	LONG result = DOSFALSE;
	struct FileNode * fn;
	struct LockNode * ln;
	int error = OK;

	ENTER();

	SHOWVALUE(fl);

	ln = (struct LockNode *)fl->fl_Key;

	if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
	{
		SHOWMSG("lock doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	fn = allocate_memory(sizeof(*fn));
	if(fn == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	memset(fn,0,sizeof(*fn));

	fn->fn_Handle	= fh;
	fn->fn_Magic	= ID_SMB_DISK;
	fn->fn_FullName	= ln->ln_FullName;
	fn->fn_File		= ln->ln_File;
	fn->fn_Mode		= fl->fl_Access;

	Remove((struct Node *)ln);
	ln->ln_Magic = 0;
	free_memory(ln);

	fh->fh_Arg1 = (LONG)fn;

	AddTail((struct List *)&FileList,(struct Node *)fn);
	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_RenameDisk(
	const void *	bcpl_name,
	LONG *			error_ptr)
{
	LONG result = DOSFALSE;
	int error = OK;
	STRPTR old_name;
	STRPTR new_name;
	const TEXT * name;
	int len;

	ENTER();

	if(NOT VolumeNodeAdded)
	{
		error = ERROR_OBJECT_IN_USE;
		goto out;
	}

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	D(("name = '%b'",MKBADDR(bcpl_name)));

	/* Now for the really interesting part; the new name
	 * is to be a NUL-terminated BCPL string, and as such
	 * must be allocated via AllocVec().
	 */

	name = bcpl_name;

	len = name[0];

	new_name = AllocVec(1 + len + 1,MEMF_ANY|MEMF_PUBLIC);
	if(new_name == NULL)
	{
		error = ERROR_NO_FREE_STORE;
		goto out;
	}

	new_name[0] = len;
	memcpy(&new_name[1],&name[1],len);
	new_name[len+1] = '\0';

	Forbid();

	old_name = BADDR(VolumeNode->dol_Name);
	VolumeNode->dol_Name = MKBADDR(new_name);

	Permit();

	FreeVec(old_name);

	send_disk_change_notification(IECLASS_DISKINSERTED);

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_ChangeMode(
	const struct MsgPort *	user,
	LONG					type,
	APTR					object,
	LONG					new_mode,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	struct FileLock * fl = NULL;
	struct FileNode * fn = NULL;
	struct LockNode * ln = NULL;
	const TEXT * name;
	LONG old_mode;
	int error = OK;

	ENTER();

	/* Sanity check; verify parameters */
	if((type != CHANGE_LOCK && type != CHANGE_FH) ||
	   (new_mode != EXCLUSIVE_LOCK && new_mode != SHARED_LOCK))
	{
		error = ERROR_ACTION_NOT_KNOWN;
		goto out;
	}

	/* Now obtain the data structures, name and mode
	 * associated with the object in question.
	 */
	if(type == CHANGE_LOCK)
	{
		fl = object;

		ln = (struct LockNode *)fl->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		name = ln->ln_FullName;
		old_mode = fl->fl_Access;

		ln->ln_LastUser = user;
	}
	else
	{
		struct FileHandle * fh = object;

		fn = (struct FileNode *)fh->fh_Arg1;

		if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
		{
			SHOWMSG("file doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		name = fn->fn_FullName;
		old_mode = fn->fn_Mode;
	}

	/* Do we need to change anything at all? */
	if(new_mode == old_mode)
	{
		result = DOSTRUE;
		goto out;
	}

	/* This is the easiest case; change an
	 * exclusive access mode to a shared
	 * access mode. Since the original mode
	 * can be used by one object only,
	 * we get away by updating the mode
	 * value.
	 */
	if(new_mode == SHARED_LOCK)
	{
		if(type == CHANGE_LOCK)
			fl->fl_Access = new_mode;
		else
			fn->fn_Mode = new_mode;

		result = DOSTRUE;
		goto out;
	}

	/* Is there another shared access lock
	 * which refers to the same object?
	 */
	if(find_lock_node(name,ln) != NULL)
	{
		error = ERROR_OBJECT_IN_USE;
		goto out;
	}

	/* Is there another shared access file
	 * which refers to the same object?
	 */
	if(find_file_node(name,fn) != NULL)
	{
		error = ERROR_OBJECT_IN_USE;
		goto out;
	}

	/* There is just one single reference
	 * to this object; change the mode
	 * and quit.
	 */
	if(type == CHANGE_LOCK)
		fl->fl_Access = new_mode;
	else
		fn->fn_Mode = new_mode;

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_WriteProtect(
	LONG	flag,
	ULONG	key,
	LONG *	error_ptr)
{
	LONG result = DOSFALSE;
	int error = OK;

	ENTER();

	if(flag == DOSFALSE)
	{
		if(WriteProtected)
		{
			if(key != WriteProtectKey)
			{
				error = ERROR_INVALID_LOCK;
				goto out;
			}

			WriteProtected = FALSE;

			if(VolumeNodeAdded)
			{
				send_disk_change_notification(IECLASS_DISKREMOVED);
				send_disk_change_notification(IECLASS_DISKINSERTED);
			}
		}
	}
	else
	{
		if(NOT WriteProtected)
		{
			WriteProtected = TRUE;
			WriteProtectKey = key;

			if(VolumeNodeAdded)
			{
				send_disk_change_notification(IECLASS_DISKREMOVED);
				send_disk_change_notification(IECLASS_DISKINSERTED);
			}
		}
		else
		{
			error = ERROR_INVALID_LOCK;
			goto out;
		}
	}

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_MoreCache(
	LONG	buffer_delta,
	LONG *	error_ptr)
{
	LONG result;
	int old_size;

	ENTER();

	old_size = smba_get_dircache_size(ServerData);

	result = smba_change_dircache_size(ServerData,old_size + buffer_delta);
	if(result == old_size && buffer_delta != 0)
	{
		result = DOSFALSE;
		(*error_ptr) = ERROR_NO_FREE_STORE;
	}

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_SetComment(
	const struct MsgPort *	user,
	struct FileLock *		parent,
	const void *			bcpl_name,
	const void *			bcpl_comment,
	LONG *					error_ptr)
{
	LONG result = DOSFALSE;
	STRPTR full_name = NULL;
	smba_file_t * file = NULL;
	const TEXT * parent_name;
	TEXT name[MAX_FILENAME_LEN+1];
	int error;

	ENTER();

	if(WriteProtected)
	{
		error = ERROR_DISK_WRITE_PROTECTED;
		goto out;
	}

	D(("name = '%b', comment = '%s'",MKBADDR(bcpl_name),MKBADDR(bcpl_comment)));

	SHOWVALUE(parent);

	if(parent != NULL)
	{
		struct LockNode * ln = (struct LockNode *)parent->fl_Key;

		if(ln == NULL || ln->ln_Magic != ID_SMB_DISK)
		{
			SHOWMSG("lock doesn't look right");

			error = ERROR_INVALID_LOCK;
			goto out;
		}

		ln->ln_LastUser = user;

		parent_name = ln->ln_FullName;
	}
	else
	{
		parent_name = NULL;
	}

	convert_from_bcpl_to_c_string(name,sizeof(name),bcpl_name);

	if (NOT ServerData->server.unicode_enabled)
	{
		error = translate_amiga_name_to_smb_name(name,strlen(name),sizeof(name));
		if(error != OK)
			goto out;
	}

	error = build_full_path_name(parent_name,name,&full_name);
	if(error != OK)
	{
		/* Trying to change the comment of the root directory? */
		if(error == ERROR_INVALID_COMPONENT_NAME)
			error = ERROR_OBJECT_IN_USE;

		goto out;
	}

	D(("full_name = '%s'",escape_name(full_name)));

	if (smba_open(ServerData,full_name,open_writable,open_dont_truncate,&file,&error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	/* All this work and we're only doing something very silly... */
	result = DOSTRUE;

 out:

	if(file != NULL)
		smba_close(ServerData,file);

	free_memory(full_name);

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_LockRecord (
	struct FileNode *	fn,
	LONG				offset,
	LONG				length,
	LONG				mode,
	ULONG				timeout,
	LONG *				error_ptr)
{
	LONG result = DOSFALSE;
	int error;
	LONG umode;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	/* Sanity checks... */
	if (mode < REC_EXCLUSIVE || mode > REC_SHARED_IMMED)
	{
		error = ERROR_ACTION_NOT_KNOWN;
		goto out;
	}

	/* Invalid offset, size or integer overflow? */
	if (offset < 0 || length <= 0 || offset + length < offset)
	{
		error = ERROR_LOCK_COLLISION;
		goto out;
	}

	if ((mode == REC_SHARED) || (mode == REC_SHARED_IMMED))
		umode = 1;
	else
		umode = 0;

	if ((mode == REC_SHARED_IMMED) || (mode == REC_EXCLUSIVE_IMMED))
		timeout = 0;

	if (timeout > 0)
	{
		if (timeout > 214748364)
			timeout = ~0UL;	/* wait forever */
		else
			timeout *= 20;	/* milliseconds instead of Ticks */
	}

	if (smba_lockrec (fn->fn_File, offset, length, umode, 0, (long)timeout, &error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static LONG
Action_FreeRecord (
	struct FileNode *	fn,
	LONG				offset,
	LONG				length,
	LONG *				error_ptr)
{
	LONG result = DOSFALSE;
	int error;

	ENTER();

	if(fn == NULL || fn->fn_Magic != ID_SMB_DISK)
	{
		SHOWMSG("file doesn't look right");

		error = ERROR_INVALID_LOCK;
		goto out;
	}

	/* Sanity checks... */
	if(offset < 0 || length <= 0 || offset + length < offset)
	{
		error = ERROR_RECORD_NOT_LOCKED;
		goto out;
	}

	if (smba_lockrec (fn->fn_File, offset, length, 2, -1, 0, &error) < 0)
	{
		error = map_errno_to_ioerr(error);
		goto out;
	}

	result = DOSTRUE;

 out:

	(*error_ptr) = error;

	RETURN(result);
	return(result);
}

/****************************************************************************/

static void
file_system_handler(BOOL raise_priority, const TEXT * device_name,const TEXT * volume_name,const TEXT * service_name)
{
	struct Process * this_process = (struct Process *)FindTask(NULL);
	BOOL sign_off = FALSE;
	int old_priority = 0;
	fd_set read_fds;
	int server_fd;
	ULONG signals;
	BOOL done;

	ENTER();

	display_error_message_list();

	if(NOT Quiet && WBStartup == NULL)
	{
		struct CommandLineInterface * cli;

		cli = Cli();
		if(NOT cli->cli_Background)
		{
			TEXT name[MAX_FILENAME_LEN+1];
			LONG max_cli;
			LONG which;
			LONG i;

			Forbid();

			which = max_cli = MaxCli();

			for(i = 1 ; i <= max_cli ; i++)
			{
				if(FindCliProc(i) == this_process)
				{
					which = i;
					break;
				}
			}

			Permit();

			if(volume_name == NULL)
				strlcpy(name,device_name,sizeof(name));
			else
				strlcpy(name,volume_name,sizeof(name));

			/* If the device or volume name had a trailing
			 * colon character attached, remove it so that the
			 * output below will always show one colon
			 * character following the name, and not two.
			 */
			for(i = strlen(name)-1 ; i >= 0 ; i--)
			{
				if(name[i] == ':')
					name[i] = '\0';
				else
					break;
			}

			LocalFPrintf(ZERO, "Connected '%s' to '%s:'; \"Break %ld\" or [Ctrl-C] to stop... ",
			service_name,name,which);

			Flush(Output());

			sign_off = TRUE;
		}
	}

	/* Don't show any further error message in the shell, and
	 * certainly don't allocate memory for error messages which
	 * would have to be displayed in an error requester (which
	 * doesn't happen).
	 */
	Quiet = TRUE;

	done = FALSE;

	if(raise_priority)
	{
		/* Raise the Task priority of the file system to 10
		 * unless it already is running at priority 10 or higher.
		 */
		Forbid();

		old_priority = this_process->pr_Task.tc_Node.ln_Pri;
		if(old_priority < 10)
			SetTaskPri((struct Task *)this_process, 10);

		Permit();
	}

	FD_ZERO(&read_fds);

	do
	{
		server_fd = ServerData->server.mount_data.fd;

		/* If the server is currently connected, check if it has sent
		 * a NetBIOS "keep alive" message and deal with it.
		 */
		if(server_fd >= 0)
		{
			/* We want to know if this socket has readable data for us. */
			FD_SET(server_fd, &read_fds);

			signals = SIGBREAKF_CTRL_C | SIGBREAKF_CTRL_F | (1UL << FileSystemPort->mp_SigBit);

			/* Wait for the server to send something, a signal to be received
			 * or the next file system packet to arrive.
			 */
			if(WaitSelect(server_fd+1,&read_fds,NULL,NULL,NULL,&signals) > 0)
			{
				int num_bytes;
				UBYTE data[4];
				int error;

				/* We need to pick up everything that might be waiting to be
				 * read, but we need to stop reading from the socket as soon
				 * as there is no further data.
				 */
				while(TRUE)
				{
					/* Throw away what's waiting to be read. */
					num_bytes = smb_discard_netbios_frames(&ServerData->server, server_fd, &error);
					if(num_bytes != -1)
					{
						int non_blocking_io;

						SHOWMSG("checking for more data...");

						non_blocking_io = TRUE;
						IoctlSocket(server_fd, FIONBIO, &non_blocking_io);

						/* If there's what might be one NetBIOS header worth
						 * of data waiting to be read, keep going.
						 */
						num_bytes = recv(server_fd, data, sizeof(data), MSG_PEEK);
						if(num_bytes < 0)
							error = errno;

						non_blocking_io = FALSE;
						IoctlSocket(server_fd, FIONBIO, &non_blocking_io);

						if(num_bytes > 0)
						{
							D(("there's probably something waiting to be read... (%ld bytes)", num_bytes));
							continue;
						}

						SHOWMSG("no more data's waiting");
					}

					/* If we ran into trouble we might want to shut down
					 * the server connection...
					 */
					if(num_bytes < 0 && error != EWOULDBLOCK)
					{
						D(("picked up trouble (error=%ld)",error));

						smb_check_server_connection(&ServerData->server, error);
					}

					SHOWMSG("and were'done here");
					break;
				}
			}

			D(("signals = 0x%08lx",signals));

			/* We don't want to call FD_ZERO() on each loop
			 * count, because it is costly. This is why we
			 * clear the socket which we previously used on
			 * WaitSelect(), just in case the next loop
			 * iteration may end up changing the value of
			 * ServerData->server.mount_data.fd.
			 */
			FD_CLR(server_fd, &read_fds);
		}
		/* The server connection isn't ready yet, so we wait for
		 * stop/debug signals and more file system packets.
		 */
		else
		{
			signals = Wait(SIGBREAKF_CTRL_C | SIGBREAKF_CTRL_F | (1UL << FileSystemPort->mp_SigBit));
		}

		if(signals & SIGBREAKF_CTRL_C)
		{
			SHOWMSG("stop signal received; trying to quit...");
			Quit = TRUE;
		}

		if(signals & (1UL << FileSystemPort->mp_SigBit))
		{
			struct DosPacket * dp;
			struct Message * mn;
			LONG res1,res2;

			while((mn = GetMsg(FileSystemPort)) != NULL)
			{
				dp = (struct DosPacket *)mn->mn_Node.ln_Name;

				D(("got packet; sender '%s'",((struct Node *)dp->dp_Port->mp_SigTask)->ln_Name));

				res2 = 0;

				switch(dp->dp_Action)
				{
					case ACTION_DIE:

						SHOWMSG("ACTION_DIE");
						if(IsListEmpty((struct List *)&FileList) && IsListEmpty((struct List *)&LockList))
						{
							SHOWMSG("no locks or files pending; quitting");

							res1 = DOSTRUE;
						}
						else
						{
							SHOWMSG("locks or files still pending; cannot quit yet");

							res1 = DOSFALSE;
							res2 = ERROR_OBJECT_IN_USE;
						}

						Quit = TRUE;
						break;

					case ACTION_CURRENT_VOLUME:
						/* (Ignore) -> VolumeNode */

						res1 = MKBADDR(VolumeNode);
						break;

					case ACTION_LOCATE_OBJECT:
						/* Lock,Name,Mode -> Lock */

						res1 = Action_LocateObject(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),BADDR(dp->dp_Arg2),dp->dp_Arg3,&res2);
						break;

					case ACTION_RENAME_DISK:
						/* Name -> Bool */

						res1 = Action_RenameDisk(BADDR(dp->dp_Arg1),&res2);
						break;

					case ACTION_FREE_LOCK:
						/* Lock -> Bool */

						res1 = Action_FreeLock((struct FileLock *)BADDR(dp->dp_Arg1),&res2);
						break;

					case ACTION_DELETE_OBJECT:
						/* Lock,Name -> Bool */

						res1 = Action_DeleteObject(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_RENAME_OBJECT:
						/* Source lock,source name,destination lock,destination name -> Bool */

						res1 = Action_RenameObject(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),BADDR(dp->dp_Arg2),
							(struct FileLock *)BADDR(dp->dp_Arg3),BADDR(dp->dp_Arg4),&res2);

						break;

					case ACTION_MORE_CACHE:
						/* Buffer delta -> Total number of buffers */

						/* NOTE: documentation for this packet type is inconsistent;
						 *       in the 'good old' 1.x days 'res1' was documented as
						 *       the total number of buffers to be returned. In the
						 *       2.x documentation it is said that 'res1' should
						 *       return the success code, with 'res2' to hold the
						 *       total number of buffers. However, the 'AddBuffers'
						 *       shell command doesn't work that way, and the
						 *       dos.library implementation of 'AddBuffers()' doesn't
						 *       work that way either. The 1.3 'AddBuffers' command
						 *       appears to treat a zero result as failure and a
						 *       non-zero result as success, which suggests that this
						 *       is how the packet is supposed to work, contrary to
						 *       what the official documentation says.
						 */
						res1 = Action_MoreCache(dp->dp_Arg1,&res2);
						break;

					case ACTION_COPY_DIR:
						/* Lock -> Lock */

						res1 = Action_CopyDir(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),&res2);
						break;

					case ACTION_SET_PROTECT:
						/* (Ignore),Lock,Name,Mask -> Bool */

						res1 = Action_SetProtect(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg2),BADDR(dp->dp_Arg3),dp->dp_Arg4,&res2);
						break;

					case ACTION_CREATE_DIR:
						/* Lock,Name -> Lock */

						res1 = Action_CreateDir(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_EXAMINE_OBJECT:
						/* FileLock,FileInfoBlock -> Bool */

						res1 = Action_ExamineObject(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),(struct FileInfoBlock *)BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_EXAMINE_NEXT:
						/* FileLock,FileInfoBlock -> Bool */

						res1 = Action_ExamineNext(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),(struct FileInfoBlock *)BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_DISK_INFO:
						/* InfoData -> Bool */

						Action_DiskInfo((struct InfoData *)BADDR(dp->dp_Arg1),&res2);
						res1 = DOSTRUE;
						res2 = 0;
						break;

					case ACTION_INFO:
						/* FileLock,InfoData -> Bool */

						res1 = Action_Info(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),(struct InfoData *)BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_SET_COMMENT:
						/* (Ignore),FileLock,Name,Comment -> Bool */

						res1 = Action_SetComment(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg2),BADDR(dp->dp_Arg3),BADDR(dp->dp_Arg4),&res2);
						break;

					case ACTION_PARENT:
						/* Lock -> Lock */

						res1 = Action_Parent(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),&res2);
						break;

					case ACTION_INHIBIT:

						SHOWMSG("ACTION_INHIBIT");
						res1 = DOSTRUE;
						break;

					case ACTION_SET_DATE:
						/* (Ignore),FileLock,Name,DateStamp(APTR) -> Bool */

						res1 = Action_SetDate(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg2),BADDR(dp->dp_Arg3),(struct DateStamp *)dp->dp_Arg4,&res2);
						break;

					case ACTION_SAME_LOCK:
						/* Lock,Lock -> Bool */

						res1 = Action_SameLock(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),(struct FileLock *)BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_READ:
						/* FileHandle->fh_Arg1,Buffer(APTR),Length -> Length */

						res1 = Action_Read((struct FileNode *)dp->dp_Arg1,(APTR)dp->dp_Arg2,dp->dp_Arg3,&res2);
						break;

					case ACTION_WRITE:
						/* FileHandle->fh_Arg1,Buffer(APTR),Length -> Length */

						res1 = Action_Write((struct FileNode *)dp->dp_Arg1,(APTR)dp->dp_Arg2,dp->dp_Arg3,&res2);
						break;

					case ACTION_FINDUPDATE:
					case ACTION_FINDINPUT:
					case ACTION_FINDOUTPUT:
						/* FileHandle,FileLock,Name -> Bool */

						res1 = Action_Find(dp->dp_Port,dp->dp_Action,(struct FileHandle *)BADDR(dp->dp_Arg1),(struct FileLock *)BADDR(dp->dp_Arg2),BADDR(dp->dp_Arg3),&res2);
						break;

					case ACTION_END:
						/* FileHandle->fh_Arg1 -> Bool */

						res1 = Action_End((struct FileNode *)dp->dp_Arg1,&res2);
						break;

					case ACTION_SEEK:
						/* FileHandle->fh_Arg1,Position,Mode -> Position */

						res1 = Action_Seek((struct FileNode *)dp->dp_Arg1,dp->dp_Arg2,dp->dp_Arg3,&res2);
						break;

					case ACTION_SET_FILE_SIZE:
						/* FileHandle->fh_Arg1,Offset,Mode -> New file size */

						res1 = Action_SetFileSize((struct FileNode *)dp->dp_Arg1,dp->dp_Arg2,dp->dp_Arg3,&res2);
						break;

					case ACTION_WRITE_PROTECT:
						/* Flag,Key -> Bool */

						res1 = Action_WriteProtect(dp->dp_Arg1,dp->dp_Arg2,&res2);
						break;

					case ACTION_FH_FROM_LOCK:
						/* FileHandle(BPTR),FileLock -> Bool */

						res1 = Action_FHFromLock((struct FileHandle *)BADDR(dp->dp_Arg1),(struct FileLock *)BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_IS_FILESYSTEM:

						SHOWMSG("ACTION_IS_FILESYSTEM");
						res1 = DOSTRUE;
						break;

					case ACTION_CHANGE_MODE:
						/* Type,Object,Mode -> Bool */

						res1 = Action_ChangeMode(dp->dp_Port,dp->dp_Arg1,BADDR(dp->dp_Arg2),dp->dp_Arg3,&res2);
						break;

					case ACTION_COPY_DIR_FH:
						/* FileHandle->fh_Arg1 -> Bool */

						res1 = Action_CopyDirFH(dp->dp_Port,(struct FileNode *)dp->dp_Arg1,&res2);
						break;

					case ACTION_PARENT_FH:
						/* FileHandle->fh_Arg1 -> Bool */

						res1 = Action_ParentFH((struct FileNode *)dp->dp_Arg1,&res2);
						break;

					case ACTION_EXAMINE_ALL:
						/* FileLock,ExAllData(APTR),Size,Type,ExAllControl(APTR) -> Bool */

						res1 = Action_ExamineAll(dp->dp_Port,(struct FileLock *)BADDR(dp->dp_Arg1),(struct ExAllData *)dp->dp_Arg2,
							dp->dp_Arg3,dp->dp_Arg4,(struct ExAllControl *)dp->dp_Arg5,&res2);

						break;

					case ACTION_EXAMINE_FH:
						/* FileHandle->fh_Arg1,FileInfoBlock -> Bool */

						res1 = Action_ExamineFH((struct FileNode *)dp->dp_Arg1,(struct FileInfoBlock *)BADDR(dp->dp_Arg2),&res2);
						break;

					case ACTION_EXAMINE_ALL_END:
						/* FileLock,ExAllData(APTR),Size,Type,ExAllControl(APTR) -> Bool */

						res1 = DOSTRUE;
						break;

					case ACTION_LOCK_RECORD:
						/* FileHandle->fh_Arg1,position,length,mode,time-out -> Bool */

						res1 = Action_LockRecord((struct FileNode *)dp->dp_Arg1,dp->dp_Arg2,dp->dp_Arg3,dp->dp_Arg4,(ULONG)dp->dp_Arg5,&res2);
						break;

					case ACTION_FREE_RECORD:
						/* FileHandle->fh_Arg1,position,length -> Bool */

						res1 = Action_FreeRecord((struct FileNode *)dp->dp_Arg1,dp->dp_Arg2,dp->dp_Arg3,&res2);
						break;

					case ACTION_READ_LINK:

						/* Return -1 for ACTION_READ_LINK, for which DOSFALSE (= 0)
						 * would otherwise be a valid response. Bug fix contributed
						 * by Harry 'Piru' Sintonen.
						 */
						res1 = -1;
						res2 = ERROR_ACTION_NOT_KNOWN;
						break;

					default:

						D(("Anything goes: dp->dp_Action=%ld (0x%lx)",dp->dp_Action,dp->dp_Action));

						res1 = DOSFALSE;
						res2 = ERROR_ACTION_NOT_KNOWN;
						break;
				}

				SHOWVALUE(res1);
				SHOWVALUE(res2);

				ReplyPkt(dp,res1,res2);

				D(("\n"));
			}

			/* Let's get paranoid: check if we should quit. */
			if(SetSignal(0,0) & SIGBREAKF_CTRL_C)
			{
				SHOWMSG("stop signal received; trying to quit...");
				Quit = TRUE;

				break;
			}
		}

		#if DEBUG
		{
			if(signals & SIGBREAKF_CTRL_F)
			{
				struct FileNode * fn;
				struct LockNode * ln;

				D(("list of open files:"));

				for(fn = (struct FileNode *)FileList.mlh_Head ;
				    fn->fn_MinNode.mln_Succ != NULL ;
				    fn = (struct FileNode *)fn->fn_MinNode.mln_Succ)
				{
					D(("  name='%s'",escape_name(fn->fn_FullName)));
					D(("  mode=%ld, offset=%s",fn->fn_Mode,convert_quad_to_string(&fn->fn_OffsetQuad)));
					D((""));
				}

				D(("list of allocated locks:"));

				for(ln = (struct LockNode *)LockList.mlh_Head ;
				    ln->ln_MinNode.mln_Succ != NULL ;
				    ln = (struct LockNode *)ln->ln_MinNode.mln_Succ)
				{
					D(("  name='%s'",escape_name(ln->ln_FullName)));
					D(("  mode=%ld",ln->ln_FileLock.fl_Access));
					D((""));
				}
			}
		}
		#endif /* DEBUG */

		if(Quit)
		{
			if(IsListEmpty((struct List *)&FileList) && IsListEmpty((struct List *)&LockList))
			{
				SHOWMSG("no locks or files pending; quitting");
				done = TRUE;
			}
			else
			{
				SHOWMSG("locks or files still pending; cannot quit yet");
			}
		}
	}
	while(NOT done);

	if(raise_priority)
	{
		/* Restore the priority of the file system, unless the priority
		 * has already been changed.
		 */
		Forbid();

		if(old_priority < 10 && this_process->pr_Task.tc_Node.ln_Pri == 10)
			SetTaskPri((struct Task *)this_process, old_priority);

		Permit();
	}

	if(sign_off)
		LocalFPrintf(ZERO, "stopped.\n");

	LEAVE();
}

/****************************************************************************/

/* Convert an unsigned 64 bit integer into a string. The
 * conversion uses a local static buffer and returns a pointer
 * to the first digit of the string.
 */
const char *
convert_quad_to_string(const QUAD * const number)
{
	static char string[22]; /* 21 bytes should be sufficient. */

	QUAD m = (*number);
	ULONG n;
	int len;

	memset(string,'\0',sizeof(string));

	for(len = sizeof(string) - 2 ; len >= 0 ; )
	{
		n = divide_64_by_32(&m,10,&m);

		string[len--] = '0' + n;

		if(m.High == 0 && m.Low == 0)
			break;
	}

	return(&string[len+1]);
}

/****************************************************************************/

/*
 * Copy src to string dst of size siz.	At most siz-1 characters
 * will be copied.  Always NUL terminates (unless siz == 0).
 * Returns strlen(src); if retval >= siz, truncation occurred.
 */
size_t
strlcpy(char *dst, const char *src, size_t siz)
{
	char *d = dst;
	const char *s = src;
	size_t n = siz;
	size_t result;

	/* Copy as many bytes as will fit */
	if(n != 0 && --n != 0)
	{
		do
		{
			if(((*d++) = (*s++)) == '\0')
				break;
		}
		while(--n != 0);
	}

	/* Not enough room in dst, add NUL and traverse rest of src */
	if(n == 0)
	{
		if(siz != 0)
			(*d) = '\0';	/* NUL-terminate dst */

		while((*s++) != '\0')
			;
	}

	result = s - src - 1;	/* count does not include NUL */

	return(result);
}

/*
 * Appends src to string dst of size siz (unlike strncat, siz is the
 * full size of dst, not space left).  At most siz-1 characters
 * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
 * Returns strlen(src) + MIN(siz, strlen(initial dst)).
 * If retval >= siz, truncation occurred.
 */
size_t
strlcat(char *dst, const char *src, size_t siz)
{
	char *d = dst;
	const char *s = src;
	size_t n = siz;
	size_t dlen;
	size_t result;

	/* Find the end of dst and adjust bytes left but don't go past end */
	while(n-- != 0 && (*d) != '\0')
		d++;

	dlen = d - dst;
	n = siz - dlen;

	if(n == 0)
	{
		result = dlen + strlen(s);
	}
	else
	{
		while((*s) != '\0')
		{
			if(n != 1)
			{
				(*d++) = (*s);
				n--;
			}

			s++;
		}

		(*d) = '\0';

		result = dlen + (s - src);	/* count does not include NUL */
	}

	return(result);
}