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/* safe strcpy and strcat versions
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 2008 by Paulius Zaleckas, JSC Teltonika
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <string.h>
#include "gsmd.h"
#include <gsmd/gsmd.h>
/**
* strlcpy - Copy a %NUL terminated string into a sized buffer
* @dest: Where to copy the string to
* @src: Where to copy the string from
* @size: size of destination buffer
*
* Compatible with *BSD: the result is always a valid
* NUL-terminated string that fits in the buffer (unless,
* of course, the buffer size is zero). It does not pad
* out the result like strncpy() does.
*/
size_t strlcpy(char *dest, const char *src, size_t size)
{
size_t ret = strlen(src);
if (size) {
size_t len;
if (ret >= size) {
len = size - 1;
DEBUGP("\"%s\" was truncated by %i characters\n", src,
ret - len);
}
else
len = ret;
memcpy(dest, src, len);
dest[len] = '\0';
}
return ret;
}
/**
* strlcat - Append a length-limited, %NUL-terminated string to another
* @dest: The string to be appended to
* @src: The string to append to it
* @count: The size of the destination buffer.
*/
size_t strlcat(char *dest, const char *src, size_t count)
{
size_t dsize = strlen(dest);
size_t len = strlen(src);
size_t res = dsize + len;
/* This would be a bug */
if (dsize >= count) {
DEBUGP("Length of destination string > provided buffer size!\n");
return 0;
}
dest += dsize;
count -= dsize;
if (len >= count) {
len = count - 1;
DEBUGP("\"%s\" was truncated by %i characters\n", src,
res - len);
}
memcpy(dest, src, len);
dest[len] = 0;
return res;
}
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