mirror of
https://github.com/reactos/reactos.git
synced 2024-08-30 23:28:58 +00:00
122 lines
2.5 KiB
C
122 lines
2.5 KiB
C
/*
|
|
* PROJECT: ReactOS CRT library
|
|
* LICENSE: See COPYING in the top level directory
|
|
* FILE: lib/sdk/crt/stdlib/wmakpath_s.c
|
|
* PURPOSE: Creates a path
|
|
* PROGRAMMERS: Wine team
|
|
* Copyright 1996,1998 Marcus Meissner
|
|
* Copyright 1996 Jukka Iivonen
|
|
* Copyright 1997,2000 Uwe Bonnes
|
|
* Copyright 2000 Jon Griffiths
|
|
*
|
|
*/
|
|
|
|
#include <precomp.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/*********************************************************************
|
|
* _wmakepath_s (MSVCRT.@)
|
|
*
|
|
* Safe version of _wmakepath.
|
|
*/
|
|
int CDECL _wmakepath_s(wchar_t *path, size_t size, const wchar_t *drive,
|
|
const wchar_t *directory, const wchar_t *filename,
|
|
const wchar_t *extension)
|
|
{
|
|
wchar_t *p = path;
|
|
|
|
if (!path || !size)
|
|
{
|
|
*_errno() = EINVAL;
|
|
return EINVAL;
|
|
}
|
|
|
|
if (drive && drive[0])
|
|
{
|
|
if (size <= 2)
|
|
goto range;
|
|
|
|
*p++ = drive[0];
|
|
*p++ = ':';
|
|
size -= 2;
|
|
}
|
|
|
|
if (directory && directory[0])
|
|
{
|
|
size_t len = strlenW(directory);
|
|
unsigned int needs_separator = directory[len - 1] != '/' && directory[len - 1] != '\\';
|
|
size_t copylen = min(size - 1, len);
|
|
|
|
if (size < 2)
|
|
goto range;
|
|
|
|
memmove(p, directory, copylen * sizeof(wchar_t));
|
|
|
|
if (size <= len)
|
|
goto range;
|
|
|
|
p += copylen;
|
|
size -= copylen;
|
|
|
|
if (needs_separator)
|
|
{
|
|
if (size < 2)
|
|
goto range;
|
|
|
|
*p++ = '\\';
|
|
size -= 1;
|
|
}
|
|
}
|
|
|
|
if (filename && filename[0])
|
|
{
|
|
size_t len = strlenW(filename);
|
|
size_t copylen = min(size - 1, len);
|
|
|
|
if (size < 2)
|
|
goto range;
|
|
|
|
memmove(p, filename, copylen * sizeof(wchar_t));
|
|
|
|
if (size <= len)
|
|
goto range;
|
|
|
|
p += len;
|
|
size -= len;
|
|
}
|
|
|
|
if (extension && extension[0])
|
|
{
|
|
size_t len = strlenW(extension);
|
|
unsigned int needs_period = extension[0] != '.';
|
|
size_t copylen;
|
|
|
|
if (size < 2)
|
|
goto range;
|
|
|
|
if (needs_period)
|
|
{
|
|
*p++ = '.';
|
|
size -= 1;
|
|
}
|
|
|
|
copylen = min(size - 1, len);
|
|
memcpy(p, extension, copylen * sizeof(wchar_t));
|
|
|
|
if (size <= len)
|
|
goto range;
|
|
|
|
p += copylen;
|
|
}
|
|
|
|
*p = '\0';
|
|
return 0;
|
|
|
|
range:
|
|
path[0] = '\0';
|
|
*_errno() = ERANGE;
|
|
return ERANGE;
|
|
}
|
|
|