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amiga-clib2/library/utime_utime.c
Olaf Barthel d1aaa84bcc - Moved the common DateStamp to time_t conversion code into a shared
function.

- The fall-back function for converting time into a string in strftime()
  now calls itself for the "%x" and "%X" format specifiers.


git-svn-id: file:///Users/olsen/Code/migration-svn-zu-git/logical-line-staging/clib2/trunk@14809 87f5fb63-7c3d-0410-a384-fd976d0f7a62
2005-01-24 10:25:46 +00:00

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/*
* $Id: utime_utime.c,v 1.4 2005-01-24 10:25:46 obarthel Exp $
*
* :ts=4
*
* Portable ISO 'C' (1994) runtime library for the Amiga computer
* Copyright (c) 2002-2005 by Olaf Barthel <olsen@sourcery.han.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Neither the name of Olaf Barthel nor the names of contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _STDLIB_NULL_POINTER_CHECK_H
#include "stdlib_null_pointer_check.h"
#endif /* _STDLIB_NULL_POINTER_CHECK_H */
/****************************************************************************/
#ifndef _UTIME_HEADERS_H
#include "utime_headers.h"
#endif /* _UTIME_HEADERS_H */
#ifndef _LOCALE_HEADERS_H
#include "locale_headers.h"
#endif /* _LOCALE_HEADERS_H */
/****************************************************************************/
/* The following is not part of the ISO 'C' (1994) standard. */
/****************************************************************************/
int
utime(const char * path_name,const struct utimbuf * times)
{
#if defined(UNIX_PATH_SEMANTICS)
struct name_translation_info path_name_nti;
#endif /* UNIX_PATH_SEMANTICS */
struct DateStamp ds;
int result = -1;
LONG status;
assert( path_name != NULL );
#if defined(CHECK_FOR_NULL_POINTERS)
{
if(path_name == NULL)
{
errno = EFAULT;
goto out;
}
}
#endif /* CHECK_FOR_NULL_POINTERS */
if(__check_abort_enabled)
__check_abort();
/* If a modification time is provided, convert it into the local
DateStamp format, as used by the SetFileDate() function. */
if(times != NULL)
{
time_t seconds;
seconds = times->modtime;
/* The modification time has to lie within the AmigaOS epoch. */
if(seconds < UNIX_TIME_OFFSET)
{
errno = EINVAL;
goto out;
}
/* Adjust the modification time to the AmigaOS epoch. */
seconds -= UNIX_TIME_OFFSET;
/* If possible, adjust the modification time to match the
local time zone settings. */
if(__default_locale != NULL)
seconds -= 60 * __default_locale->loc_GMTOffset;
ds.ds_Days = (seconds / (24 * 60 * 60));
ds.ds_Minute = (seconds % (24 * 60 * 60)) / 60;
ds.ds_Tick = (seconds % 60) * TICKS_PER_SECOND;
}
else
{
/* No special modification time provided; use the current
time instead. */
DateStamp(&ds);
}
#if defined(UNIX_PATH_SEMANTICS)
{
if(__unix_path_semantics)
{
if(__translate_unix_to_amiga_path_name(&path_name,&path_name_nti) != 0)
goto out;
if(path_name_nti.is_root)
{
errno = EACCES;
goto out;
}
}
}
#endif /* UNIX_PATH_SEMANTICS */
PROFILE_OFF();
status = SetFileDate((STRPTR)path_name,&ds);
PROFILE_ON();
if(status == DOSFALSE)
{
__translate_io_error_to_errno(IoErr(),&errno);
goto out;
}
result = 0;
out:
return(result);
}