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- #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;
- }
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