29 lines
536 B
C
29 lines
536 B
C
/* $NetBSD: strcasecmp.c,v 1.3 2019/08/13 08:48:07 christos Exp $ */
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/*
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* Written by Martin Husemann <martin@NetBSD.org>
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* Public domain.
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*/
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#include <strings.h>
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/*
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* Simple strcasecmp, try to avoid pulling in real locales
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*/
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int
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strcasecmp(const char *s1, const char *s2)
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{
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unsigned char c1, c2;
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do {
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c1 = *s1++;
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c2 = *s2++;
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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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} while (c1 == c2 && c1 != 0 && c2 != 0);
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return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1));
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}
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