ref: c4c303869381a1d06b5877e6a32e5bf016cb4531
dir: /libc/src/strncat.c/
/* See LICENSE file for copyright and license details. */
#include <string.h>
char *
strncat(char *dst, const char *src, size_t n)
{
char *ret = dst;
while (*dst)
++dst;
while (n-- > 0 && *src)
*dst++ = *src++;
*dst = '\0';
return ret;
}