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* Import _chsize_s().
* Update _chsize().
CORE-8080

svn path=/trunk/; revision=63321
This commit is contained in:
Amine Khaldi 2014-05-17 10:35:35 +00:00
parent 9273fa01fa
commit fa9bf9ef6e
1 changed files with 19 additions and 8 deletions
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27
reactos/lib/sdk/crt/stdio/file.c
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@ -1198,15 +1198,17 @@ int CDECL fseek(FILE* file, long offset, int whence)
} }
/********************************************************************* /*********************************************************************
* _chsize (MSVCRT.@) * _chsize_s (MSVCRT.@)
*/ */
int CDECL _chsize(int fd, long size) int CDECL _chsize_s(int fd, __int64 size)
{ {
LONG cur, pos; __int64 cur, pos;
HANDLE handle; HANDLE handle;
BOOL ret = FALSE; BOOL ret = FALSE;
TRACE("(fd=%d, size=%d)\n", fd, size); TRACE("(fd=%d, size=%s)\n", fd, wine_dbgstr_longlong(size));
if (!MSVCRT_CHECK_PMT(size >= 0)) return EINVAL;
LOCK_FILES(); LOCK_FILES();
@ -1214,10 +1216,10 @@ int CDECL _chsize(int fd, long size)
if (handle != INVALID_HANDLE_VALUE) if (handle != INVALID_HANDLE_VALUE)
{ {
/* save the current file pointer */ /* save the current file pointer */
cur = _lseek(fd, 0, SEEK_CUR); cur = _lseeki64(fd, 0, SEEK_CUR);
if (cur >= 0) if (cur >= 0)
{ {
pos = _lseek(fd, size, SEEK_SET); pos = _lseeki64(fd, size, SEEK_SET);
if (pos >= 0) if (pos >= 0)
{ {
ret = SetEndOfFile(handle); ret = SetEndOfFile(handle);
@ -1225,12 +1227,21 @@ int CDECL _chsize(int fd, long size)
} }
/* restore the file pointer */ /* restore the file pointer */
_lseek(fd, cur, SEEK_SET); _lseeki64(fd, cur, SEEK_SET);
} }
} }
UNLOCK_FILES(); UNLOCK_FILES();
return ret ? 0 : -1; return ret ? 0 : *_errno();
}
/*********************************************************************
* _chsize (MSVCRT.@)
*/
int CDECL _chsize(int fd, long size)
{
/* _chsize_s returns errno on failure but _chsize should return -1 */
return _chsize_s( fd, size ) == 0 ? 0 : -1;
} }
/********************************************************************* /*********************************************************************