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function. - NOTE THAT ALL THE CHANGES WITH REGARD TO USE OF DESTRUCTOR AND CONSTRUCTOR FUNCTIONS REQUIRE A COMPLETE REBUILD OF THE LIBRARY! IF YOU DO NOT DO THIS, THE CONSTRUCTOR/DESTRUCTOR FUNCTIONS MAY NOT GET CALLED. git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14744 87f5fb63-7c3d-0410-a384-fd976d0f7a62
468 lines
10 KiB
C
468 lines
10 KiB
C
/*
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* $Id: stdlib_startup.c,v 1.3 2004-09-29 19:57:58 obarthel Exp $
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*
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* :ts=4
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*
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* Portable ISO 'C' (1994) runtime library for the Amiga computer
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* Copyright (c) 2002-2004 by Olaf Barthel <olsen@sourcery.han.de>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Neither the name of Olaf Barthel nor the names of contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*#define DEBUG*/
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/****************************************************************************/
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#ifndef _STDLIB_MEM_DEBUG_H
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#include "stdlib_mem_debug.h"
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#endif /* _STDLIB_MEM_DEBUG_H */
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/****************************************************************************/
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#include "stdlib_headers.h"
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#include "unistd_headers.h"
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/****************************************************************************/
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#include <exec/execbase.h>
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/****************************************************************************/
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#include <setjmp.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <ctype.h>
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/****************************************************************************/
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#include "macros.h"
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/****************************************************************************/
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static struct MsgPort * old_console_task;
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static BOOL restore_console_task;
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/****************************************************************************/
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static BOOL restore_streams;
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/****************************************************************************/
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static BPTR old_output;
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static BPTR old_input;
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/****************************************************************************/
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static BPTR output;
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static BPTR input;
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/****************************************************************************/
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char ** __argv;
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int __argc;
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/****************************************************************************/
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UBYTE * __quote_vector;
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/****************************************************************************/
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static BOOL
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is_escape_character(UBYTE c)
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{
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BOOL result;
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result = (BOOL)(c == '*' || c == __shell_escape_character);
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return(result);
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}
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/****************************************************************************/
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static BOOL
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is_final_quote_character(const char * str)
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{
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BOOL result;
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result = (BOOL)(str[0] == '\"' && (str[1] == '\0' || isspace(str[1])));
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return(result);
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}
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/****************************************************************************/
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int
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__startup_init(void)
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{
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int result = -1;
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/* Shell startup? */
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if(__WBenchMsg == NULL)
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{
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int number_of_arguments;
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char * command_name;
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int command_name_len;
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char * arg_str;
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int arg_len;
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char * command_line;
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char * str;
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/* Make a copy of the current command name string. */
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command_name_len = (int)((UBYTE *)BADDR(Cli()->cli_CommandName))[0];
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__free_program_name = TRUE;
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command_name = AllocVec((ULONG)(command_name_len+1),MEMF_ANY);
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if(command_name == NULL)
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goto out;
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if(CANNOT GetProgramName(command_name,command_name_len+1))
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goto out;
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__program_name = (char *)command_name;
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/* Get the shell parameter string and find out
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* how long it is, stripping a trailing line
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* feed and blank spaces if necessary.
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*/
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arg_str = GetArgStr();
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while((*arg_str) == ' ' || (*arg_str) == '\t')
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arg_str++;
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arg_len = strlen(arg_str);
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while(arg_len > 0 && (arg_str[arg_len-1] == '\n' || arg_str[arg_len-1] == ' ' || arg_str[arg_len-1] == '\t'))
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arg_len--;
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/* Make a copy of the shell parameter string. */
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command_line = malloc((size_t)(arg_len+1));
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if(command_line == NULL)
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goto out;
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memmove(command_line,arg_str,(size_t)arg_len);
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command_line[arg_len] = '\0';
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/* If we have a valid command line string and a command
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* name, proceed to set up the argument vector.
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*/
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str = command_line;
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/* Count the number of arguments. */
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number_of_arguments = 1;
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while(TRUE)
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{
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/* Skip leading blank space. */
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while((*str) != '\0' && isspace(*str))
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str++;
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if((*str) == '\0')
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break;
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number_of_arguments++;
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/* Quoted parameter starts here? */
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if((*str) == '\"')
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{
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str++;
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/* Skip the quoted string. */
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while((*str) != '\0' && NOT is_final_quote_character(str))
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{
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/* Escape character? */
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if(is_escape_character(*str))
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{
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str++;
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if((*str) != '\0')
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str++;
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}
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else
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{
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str++;
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}
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}
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/* Skip the closing quote. */
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if((*str) != '\0')
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str++;
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}
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else
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{
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/* Skip the parameter. */
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while((*str) != '\0' && NOT isspace(*str))
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str++;
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if((*str) == '\0')
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break;
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}
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}
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/* Put all this together into an argument vector.
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* We allocate one extra slot to put a NULL pointer
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* into.
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*/
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__argv = (char **)malloc((number_of_arguments+1) * sizeof(*__argv));
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if(__argv == NULL)
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goto out;
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/* If necessary, allocate a bit vector to keep track of
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* which parameters are quoted and which ones are not.
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*/
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__quote_vector = __allocate_quote_vector(number_of_arguments+1);
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/* The first parameter is the program name. */
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__argv[0] = command_name;
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str = command_line;
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__argc = 1;
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while(TRUE)
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{
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/* Skip leading blank space. */
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while((*str) != '\0' && isspace(*str))
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str++;
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if((*str) == '\0')
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break;
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/* Quoted parameter starts here? */
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if((*str) == '\"')
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{
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char * arg;
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/* If necessary, indicate that this parameter was quoted. */
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if(__quote_vector != NULL)
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__quote_vector[__argc / 8] |= 1 << (7 - (__argc & 7));
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str++;
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__argv[__argc++] = str;
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arg = str;
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/* Process the quoted string. */
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while((*str) != '\0' && NOT is_final_quote_character(str))
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{
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if(is_escape_character(*str))
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{
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str++;
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switch(*str)
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{
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/* "*e" == "\033" */
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case 'E':
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case 'e':
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(*arg++) = '\033';
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break;
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/* "*n" == "\n" */
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case 'N':
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case 'n':
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(*arg++) = '\n';
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break;
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case '\0':
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/* NOTE: the termination is handled
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* down below.
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*/
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break;
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default:
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(*arg++) = (*str);
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break;
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}
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if((*str) != '\0')
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str++;
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}
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else
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{
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(*arg++) = (*str++);
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}
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}
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/* Skip the terminating quote. */
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if((*str) != '\0')
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str++;
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/* Make sure that the quoted string is properly terminated. This
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actually overwrites the final quote character. */
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(*arg) = '\0';
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}
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else
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{
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__argv[__argc++] = str;
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while((*str) != '\0' && NOT isspace(*str))
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str++;
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if((*str) == '\0')
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break;
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(*str++) = '\0';
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}
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}
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assert( __argc == number_of_arguments );
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assert( str <= &command_line[arg_len] );
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__argv[__argc] = NULL;
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}
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else
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{
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PROFILE_OFF();
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__program_name = (char *)__WBenchMsg->sm_ArgList[0].wa_Name;
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__original_current_directory = CurrentDir(__WBenchMsg->sm_ArgList[0].wa_Lock);
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__current_directory_changed = TRUE;
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if(__WBenchMsg->sm_ToolWindow != NULL)
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{
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input = Open(__WBenchMsg->sm_ToolWindow,MODE_NEWFILE);
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}
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else
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{
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static const char console_prefix[] = "CON:20/20/600/150/";
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static const char console_suffix[] = " Output/AUTO/CLOSE/WAIT";
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STRPTR window_specifier;
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STRPTR tool_name;
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size_t len;
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tool_name = FilePart(__WBenchMsg->sm_ArgList[0].wa_Name);
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len = strlen(console_prefix) + strlen(tool_name) + strlen(console_suffix);
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window_specifier = malloc(len+1);
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if(window_specifier == NULL)
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goto out;
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strcpy(window_specifier,console_prefix);
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strcat(window_specifier,tool_name);
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strcat(window_specifier,console_suffix);
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input = Open(window_specifier,MODE_NEWFILE);
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free(window_specifier);
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}
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if(input == ZERO)
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input = Open("NIL:",MODE_NEWFILE);
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if(input != ZERO)
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{
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struct FileHandle * fh = BADDR(input);
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/* Careful: "NIL:" will have a NULL MsgPort in the file handle. */
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if(fh->fh_Type != NULL)
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{
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old_console_task = SetConsoleTask(fh->fh_Type);
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output = Open("CONSOLE:",MODE_NEWFILE);
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if(output != ZERO)
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restore_console_task = TRUE;
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else
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SetConsoleTask((struct MsgPort *)old_console_task);
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}
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}
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if(output == ZERO)
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output = Open("NIL:",MODE_NEWFILE);
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if(input == ZERO || output == ZERO)
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goto out;
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old_input = SelectInput(input);
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old_output = SelectOutput(output);
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restore_streams = TRUE;
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__argv = (char **)__WBenchMsg;
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PROFILE_ON();
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}
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result = 0;
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out:
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return(result);
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}
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/****************************************************************************/
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CLIB_DESTRUCTOR(__startup_exit)
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{
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ENTER();
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PROFILE_OFF();
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/* Now clean up after the streams set up for the Workbench
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* startup...
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*/
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if(restore_console_task)
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{
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SetConsoleTask((struct MsgPort *)old_console_task);
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old_console_task = NULL;
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restore_console_task = FALSE;
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}
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if(restore_streams)
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{
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SelectInput(old_input);
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old_input = ZERO;
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SelectOutput(old_output);
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old_output = ZERO;
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restore_streams = FALSE;
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}
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if(input != ZERO)
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{
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Close(input);
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input = ZERO;
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}
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if(output != ZERO)
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{
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Close(output);
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output = ZERO;
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}
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PROFILE_ON();
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LEAVE();
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}
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