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28 lines
366 B
C
28 lines
366 B
C
#include <u.h>
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#include <libc.h>
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int
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cistrncmp(char *s1, char *s2, int n)
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{
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int c1, c2;
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while(*s1 && n-- > 0){
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c1 = *(uchar*)s1++;
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c2 = *(uchar*)s2++;
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if(c1 == c2)
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continue;
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if(c1 >= 'A' && c1 <= 'Z')
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c1 -= 'A' - 'a';
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if(c2 >= 'A' && c2 <= 'Z')
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c2 -= 'A' - 'a';
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if(c1 != c2)
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return c1 - c2;
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}
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if(n <= 0)
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return 0;
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return -*s2;
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}
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