ref: f8e18c25020d34e589f51f0436a62f2284ca2ec3
dir: /libc/src/strncat.c/
/* See LICENSE file for copyright and license details. */
#include <string.h>
char *
strncat(char * restrict dst, const char * restrict src, size_t n)
{
char *ret = dst;
while (*dst)
++dst;
while (n-- > 0 && *src)
*dst++ = *src++;
*dst = '\0';
return ret;
}