scc

 1#include <string.h>
 2
 3#undef strncpy
 4
 5char *
 6strncpy(char *restrict s1, const char *restrict s2, size_t n)
 7{
 8	char *ret = s1;
 9
10	for (; n > 0 && *s2; --n)
11		*s1++ = *s2++;
12
13	while (n-- > 0)
14		*s1++ = '\0';
15
16	return ret;
17}