mirror of
https://github.com/reactos/reactos.git
synced 2024-09-06 10:52:52 +00:00
36 lines
758 B
C
36 lines
758 B
C
![]() |
/* Appends src to string dst of size siz (unlike strncat, siz is the
|
||
|
* full size of dst, not space left). At most siz-1 characters
|
||
|
* will be copied. Always NUL terminates (unless siz == 0).
|
||
|
* Returns strlen(src); if retval >= siz, truncation occurred.
|
||
|
*/
|
||
|
|
||
|
#include <string.h>
|
||
|
|
||
|
int strlcat(char *dst, const char *src, int siz)
|
||
|
{
|
||
|
register char *d = dst;
|
||
|
register const char *s = src;
|
||
|
register int n = siz;
|
||
|
int dlen;
|
||
|
|
||
|
/* Find the end of dst and adjust bytes left but don't go past end */
|
||
|
while (*d != '\0' && n-- != 0)
|
||
|
d++;
|
||
|
dlen = d - dst;
|
||
|
n = siz - dlen;
|
||
|
|
||
|
if (n == 0)
|
||
|
return dlen + strlen(s);
|
||
|
while (*s != '\0') {
|
||
|
if (n != 1) {
|
||
|
*d++ = *s;
|
||
|
n--;
|
||
|
}
|
||
|
s++;
|
||
|
}
|
||
|
*d = '\0';
|
||
|
|
||
|
return dlen + (s - src); /* count does not include NUL */
|
||
|
}
|
||
|
|