2 * Copyright (c) 1987, 1993
3 * The Regents of the University of California. All rights reserved.
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6 * modification, are permitted provided that the following conditions
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13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
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18 * may be used to endorse or promote products derived from this software
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33 * $FreeBSD: head/sys/libkern/strcasecmp.c 148865 2005-08-08 19:38:00Z pjd $
36 #include <sys/param.h>
37 #include <sys/ctype.h>
38 #include <sys/libkern.h>
41 strcasecmp(const char *s1
, const char *s2
)
43 const u_char
*us1
= (const u_char
*)s1
, *us2
= (const u_char
*)s2
;
45 while (tolower(*us1
) == tolower(*us2
)) {
50 return (tolower(*us1
) - tolower(*us2
));
54 strncasecmp(const char *s1
, const char *s2
, size_t n
)
58 const u_char
*us1
= (const u_char
*)s1
;
59 const u_char
*us2
= (const u_char
*)s2
;
62 if (tolower(*us1
) != tolower(*us2
))
63 return (tolower(*us1
) - tolower(*us2
));