| #include <u.h> | |
| #include <libc.h> | |
| int | |
| cistrncmp(char *s1, char *s2, int n) | |
| { | |
| int c1, c2; | |
| while(*s1 && n-- > 0){ | |
| 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; | |
| } | |
| if(n <= 0) | |
| return 0; | |
| return -*s2; | |
| } |