projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 224c7076 A |
1 | /* |
| 2 | * Copyright (c) 1987, 1993 | |
| e9ce8d39 A |
3 | * The Regents of the University of California. All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms, with or without | |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| e9ce8d39 A |
13 | * 4. Neither the name of the University nor the names of its contributors |
| 14 | * may be used to endorse or promote products derived from this software | |
| 15 | * without specific prior written permission. | |
| 16 | * | |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 | * SUCH DAMAGE. | |
| 28 | */ | |
| 29 | ||
| 5b2abdfb | 30 | #if defined(LIBC_SCCS) && !defined(lint) |
| 224c7076 | 31 | static char sccsid[] = "@(#)strcasecmp.c 8.1 (Berkeley) 6/4/93"; |
| 5b2abdfb | 32 | #endif /* LIBC_SCCS and not lint */ |
| 9385eb3d | 33 | #include <sys/cdefs.h> |
| 1f2f436a | 34 | __FBSDID("$FreeBSD: src/lib/libc/string/strcasecmp.c,v 1.8 2009/02/03 17:58:20 danger Exp $"); |
| 224c7076 A |
35 | |
| 36 | #include "xlocale_private.h" | |
| e9ce8d39 | 37 | |
| 9385eb3d | 38 | #include <strings.h> |
| 224c7076 A |
39 | #include <ctype.h> |
| 40 | ||
| 41 | typedef unsigned char u_char; | |
| 42 | ||
| 43 | int | |
| 44 | strcasecmp_l(s1, s2, loc) | |
| 45 | const char *s1, *s2; | |
| 46 | locale_t loc; | |
| 47 | { | |
| 48 | const u_char | |
| 49 | *us1 = (const u_char *)s1, | |
| 50 | *us2 = (const u_char *)s2; | |
| 51 | ||
| 52 | NORMALIZE_LOCALE(loc); | |
| 53 | while (tolower_l(*us1, loc) == tolower_l(*us2++, loc)) | |
| 54 | if (*us1++ == '\0') | |
| 55 | return (0); | |
| 56 | return (tolower_l(*us1, loc) - tolower_l(*--us2, loc)); | |
| 57 | } | |
| 58 | ||
| 59 | int | |
| 1f2f436a | 60 | strcasecmp(const char *s1, const char *s2) |
| 224c7076 A |
61 | { |
| 62 | return strcasecmp_l(s1, s2, __current_locale()); | |
| 63 | } | |
| e9ce8d39 | 64 | |
| 9385eb3d | 65 | int |
| 224c7076 A |
66 | strncasecmp_l(s1, s2, n, loc) |
| 67 | const char *s1, *s2; | |
| 68 | size_t n; | |
| 69 | locale_t loc; | |
| e9ce8d39 | 70 | { |
| 224c7076 A |
71 | NORMALIZE_LOCALE(loc); |
| 72 | if (n != 0) { | |
| 73 | const u_char | |
| 74 | *us1 = (const u_char *)s1, | |
| 75 | *us2 = (const u_char *)s2; | |
| e9ce8d39 | 76 | |
| 224c7076 A |
77 | do { |
| 78 | if (tolower_l(*us1, loc) != tolower_l(*us2++, loc)) | |
| 79 | return (tolower_l(*us1, loc) - tolower_l(*--us2, loc)); | |
| 80 | if (*us1++ == '\0') | |
| 81 | break; | |
| 82 | } while (--n != 0); | |
| 83 | } | |
| 84 | return (0); | |
| 85 | } | |
| 86 | ||
| 87 | int | |
| 1f2f436a | 88 | strncasecmp(const char *s1, const char *s2, size_t n) |
| 224c7076 A |
89 | { |
| 90 | return strncasecmp_l(s1, s2, n, __current_locale()); | |
| e9ce8d39 | 91 | } |