RetroArch/libretro-common/compat/compat_strl.c
2017-12-16 01:20:21 +01:00

70 lines
2.1 KiB
C

/* Copyright (C) 2010-2017 The RetroArch team
*
* ---------------------------------------------------------------------------------------
* The following license statement only applies to this file (compat_strl.c).
* ---------------------------------------------------------------------------------------
*
* Permission is hereby granted, free of charge,
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <ctype.h>
#include <compat/strl.h>
/* Implementation of strlcpy()/strlcat() based on OpenBSD. */
#ifndef __MACH__
size_t strlcpy(char *dest, const char *source, size_t size)
{
size_t src_size = 0;
size_t n = size;
if (n)
while (--n && (*dest++ = *source++)) src_size++;
if (!n)
{
if (size) *dest = '\0';
while (*source++) src_size++;
}
return src_size;
}
size_t strlcat(char *dest, const char *source, size_t size)
{
size_t len = strlen(dest);
dest += len;
if (len > size)
size = 0;
else
size -= len;
return len + strlcpy(dest, source, size);
}
#endif
char *strldup(const char *s, size_t n)
{
char *dst = (char*)malloc(sizeof(char) * (n + 1));
strlcpy(dst, s, n);
return dst;
}