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3a2f8f42 | 1 | /** @file\r |
53e1e5c6 | 2 | strncasecmp implementation\r |
3 | \r | |
4 | Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials are licensed and made available under\r | |
6 | the terms and conditions of the BSD License that accompanies this distribution.\r | |
7 | The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | * Copyright (c) 1987, 1993\r | |
3a2f8f42 | 14 | * The Regents of the University of California. All rights reserved.\r |
53e1e5c6 | 15 | *\r |
16 | * Redistribution and use in source and binary forms, with or without\r | |
17 | * modification, are permitted provided that the following conditions\r | |
18 | * are met:\r | |
19 | * 1. Redistributions of source code must retain the above copyright\r | |
20 | * notice, this list of conditions and the following disclaimer.\r | |
21 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
22 | * notice, this list of conditions and the following disclaimer in the\r | |
23 | * documentation and/or other materials provided with the distribution.\r | |
24 | * 3. Neither the name of the University nor the names of its contributors\r | |
25 | * may be used to endorse or promote products derived from this software\r | |
26 | * without specific prior written permission.\r | |
27 | *\r | |
28 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r | |
29 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r | |
30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r | |
31 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r | |
32 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r | |
33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r | |
34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r | |
35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r | |
36 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r | |
37 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r | |
38 | * SUCH DAMAGE.\r | |
39 | \r | |
3a2f8f42 DM |
40 | $NetBSD: strncasecmp.c,v 1.2 2007/06/04 18:19:27 christos Exp $\r |
41 | strcasecmp.c 8.1 (Berkeley) 6/4/93\r | |
53e1e5c6 | 42 | **/\r |
53e1e5c6 | 43 | #include <LibConfig.h>\r |
44 | #include <sys/cdefs.h>\r | |
45 | \r | |
46 | #if !defined(_KERNEL) && !defined(_STANDALONE)\r | |
47 | #include "namespace.h"\r | |
48 | #include <assert.h>\r | |
49 | #include <ctype.h>\r | |
50 | #include <string.h>\r | |
51 | #ifdef __weak_alias\r | |
52 | __weak_alias(strcasecmp,_strcasecmp)\r | |
53 | __weak_alias(strncasecmp,_strncasecmp)\r | |
54 | #endif\r | |
55 | #else\r | |
56 | #include <lib/libkern/libkern.h>\r | |
57 | #include <machine/limits.h>\r | |
3a2f8f42 | 58 | #endif\r |
53e1e5c6 | 59 | \r |
60 | int\r | |
61 | strncasecmp(const char *s1, const char *s2, size_t n)\r | |
62 | {\r | |
3a2f8f42 | 63 | int CompareVal;\r |
53e1e5c6 | 64 | \r |
3a2f8f42 DM |
65 | _DIAGASSERT(s1 != NULL);\r |
66 | _DIAGASSERT(s2 != NULL);\r | |
53e1e5c6 | 67 | \r |
3a2f8f42 DM |
68 | if (n != 0) {\r |
69 | do {\r | |
70 | CompareVal = tolower(*s1) - tolower(*s2);\r | |
71 | if (CompareVal != 0) {\r | |
72 | return (CompareVal);\r | |
73 | }\r | |
74 | ++s1;\r | |
75 | ++s2;\r | |
76 | if (*s1 == '\0') {\r | |
77 | break;\r | |
78 | }\r | |
79 | } while (--n != 0);\r | |
80 | }\r | |
81 | return (0);\r | |
53e1e5c6 | 82 | }\r |