ref: a920c765f2b4130590fb5971a50690b21664957a dir: /libkern/strcmp.c/
#include <lib9.h> int strcmp(char *s1, char *s2) { unsigned c1, c2; for(;;) { c1 = *s1++; c2 = *s2++; if(c1 != c2) { if(c1 > c2) return 1; return -1; } if(c1 == 0) return 0; } }