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1 /* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */ | |
2 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL | |
3 * project 2003. | |
4 */ | |
5 /* ==================================================================== | |
6 * Copyright (c) 2003 The OpenSSL Project. All rights reserved. | |
7 * | |
8 * Redistribution and use in source and binary forms, with or without | |
9 * modification, are permitted provided that the following conditions | |
10 * are met: | |
11 * | |
12 * 1. Redistributions of source code must retain the above copyright | |
13 * notice, this list of conditions and the following disclaimer. | |
14 * | |
15 * 2. Redistributions in binary form must reproduce the above copyright | |
16 * notice, this list of conditions and the following disclaimer in | |
17 * the documentation and/or other materials provided with the | |
18 * distribution. | |
19 * | |
20 * 3. All advertising materials mentioning features or use of this | |
21 * software must display the following acknowledgment: | |
22 * "This product includes software developed by the OpenSSL Project | |
23 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
24 * | |
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 * endorse or promote products derived from this software without | |
27 * prior written permission. For written permission, please contact | |
28 * openssl-core@openssl.org. | |
29 * | |
30 * 5. Products derived from this software may not be called "OpenSSL" | |
31 * nor may "OpenSSL" appear in their names without prior written | |
32 * permission of the OpenSSL Project. | |
33 * | |
34 * 6. Redistributions of any form whatsoever must retain the following | |
35 * acknowledgment: | |
36 * "This product includes software developed by the OpenSSL Project | |
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
38 * | |
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 * ==================================================================== | |
52 * | |
53 * This product includes cryptographic software written by Eric Young | |
54 * (eay@cryptsoft.com). This product includes software written by Tim | |
55 * Hudson (tjh@cryptsoft.com). | |
56 * | |
57 */ | |
58 | |
59 #include <ctype.h> | |
60 #include <e_os.h> | |
61 #include "o_str.h" | |
62 | |
63 #if !defined(OPENSSL_IMPLEMENTS_strncasecmp) && \ | |
64 !defined(OPENSSL_SYSNAME_WIN32) && \ | |
65 !defined(NETWARE_CLIB) | |
66 # include <strings.h> | |
67 #endif | |
68 | |
69 int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n) | |
70 { | |
71 #if defined(OPENSSL_IMPLEMENTS_strncasecmp) | |
72 while (*str1 && *str2 && n) | |
73 { | |
74 int res = toupper(*str1) - toupper(*str2); | |
75 if (res) return res < 0 ? -1 : 1; | |
76 str1++; | |
77 str2++; | |
78 n--; | |
79 } | |
80 if (n == 0) | |
81 return 0; | |
82 if (*str1) | |
83 return 1; | |
84 if (*str2) | |
85 return -1; | |
86 return 0; | |
87 #else | |
88 /* Recursion hazard warning! Whenever strncasecmp is #defined as | |
89 * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be | |
90 * defined as well. */ | |
91 return strncasecmp(str1, str2, n); | |
92 #endif | |
93 } | |
94 int OPENSSL_strcasecmp(const char *str1, const char *str2) | |
95 { | |
96 #if defined(OPENSSL_IMPLEMENTS_strncasecmp) | |
97 return OPENSSL_strncasecmp(str1, str2, (size_t)-1); | |
98 #else | |
99 return strcasecmp(str1, str2); | |
100 #endif | |
101 } | |
102 | |
103 int OPENSSL_memcmp(const void *v1,const void *v2,size_t n) | |
104 { | |
105 const unsigned char *c1=v1,*c2=v2; | |
106 int ret=0; | |
107 | |
108 while(n && (ret=*c1-*c2)==0) n--,c1++,c2++; | |
109 | |
110 return ret; | |
111 } | |
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