#include <u.h> | |
#include <libc.h> | |
int | |
cistrcmp(char *s1, char *s2) | |
{ | |
int c1, c2; | |
while(*s1){ | |
c1 = *(uchar*)s1++; | |
c2 = *(uchar*)s2++; | |
if(c1 == c2) | |
continue; | |
if(c1 >= 'A' && c1 <= 'Z') | |
c1 -= 'A' - 'a'; | |
if(c2 >= 'A' && c2 <= 'Z') | |
c2 -= 'A' - 'a'; | |
if(c1 != c2) | |
return c1 - c2; | |
} | |
return -*s2; | |
} |