ref: 4c09eaec1c1f81e175b6e8b6266e8a2c9aa7afaa
dir: /lib/c/strncmp.c/
#include <string.h>
#undef strncmp
int
strncmp(const char *s1, const char *s2, size_t n)
{
int c;
if (n == 0)
return 0;
while ((c = *s1) != '\0' && c == *s2) {
if (--n == 0)
return 0;
++s1, ++s2;
}
return (*(unsigned char *) s1 - *(unsigned char *) s2);
}