1 fd04aace 2003-11-23 devnull #include <u.h>
 2 fd04aace 2003-11-23 devnull #include <libc.h>
 3 fd04aace 2003-11-23 devnull 
 4 fd04aace 2003-11-23 devnull int
 5 fd04aace 2003-11-23 devnull cistrcmp(char *s1, char *s2)
 6 fd04aace 2003-11-23 devnull {
 7 fd04aace 2003-11-23 devnull 	int c1, c2;
 8 fd04aace 2003-11-23 devnull 
 9 fd04aace 2003-11-23 devnull 	while(*s1){
10 fd04aace 2003-11-23 devnull 		c1 = *(uchar*)s1++;
11 fd04aace 2003-11-23 devnull 		c2 = *(uchar*)s2++;
12 fd04aace 2003-11-23 devnull 
13 fd04aace 2003-11-23 devnull 		if(c1 == c2)
14 fd04aace 2003-11-23 devnull 			continue;
15 fd04aace 2003-11-23 devnull 
16 fd04aace 2003-11-23 devnull 		if(c1 >= 'A' && c1 <= 'Z')
17 fd04aace 2003-11-23 devnull 			c1 -= 'A' - 'a';
18 fd04aace 2003-11-23 devnull 
19 fd04aace 2003-11-23 devnull 		if(c2 >= 'A' && c2 <= 'Z')
20 fd04aace 2003-11-23 devnull 			c2 -= 'A' - 'a';
21 fd04aace 2003-11-23 devnull 
22 fd04aace 2003-11-23 devnull 		if(c1 != c2)
23 fd04aace 2003-11-23 devnull 			return c1 - c2;
24 fd04aace 2003-11-23 devnull 	}
25 fd04aace 2003-11-23 devnull 	return -*s2;
26 fd04aace 2003-11-23 devnull }