1#define _BSD_SOURCE
2#include <string.h>
3
4size_t strlcat(char *d, const char *s, size_t n)
5{
6	size_t l = strnlen(d, n);
7	if (l == n) return l + strlen(s);
8	return l + strlcpy(d+l, s, n-l);
9}
10