git: 9front

ref: 8c0e8beedb32de53ad63ab50cf23939e2c6bbe63
dir: /sys/src/libc/port/strncmp.c/

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#include <u.h>
#include <libc.h>

int
strncmp(char *s1, char *s2, long n)
{
	unsigned c1, c2;

	while(n > 0) {
		c1 = *s1++;
		c2 = *s2++;
		n--;
		if(c1 != c2) {
			if(c1 > c2)
				return 1;
			return -1;
		}
		if(c1 == 0)
			break;
	}
	return 0;
}