1*2139Sjp161948 /* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */
2*2139Sjp161948 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
3*2139Sjp161948 * project 2003.
4*2139Sjp161948 */
5*2139Sjp161948 /* ====================================================================
6*2139Sjp161948 * Copyright (c) 2003 The OpenSSL Project. All rights reserved.
7*2139Sjp161948 *
8*2139Sjp161948 * Redistribution and use in source and binary forms, with or without
9*2139Sjp161948 * modification, are permitted provided that the following conditions
10*2139Sjp161948 * are met:
11*2139Sjp161948 *
12*2139Sjp161948 * 1. Redistributions of source code must retain the above copyright
13*2139Sjp161948 * notice, this list of conditions and the following disclaimer.
14*2139Sjp161948 *
15*2139Sjp161948 * 2. Redistributions in binary form must reproduce the above copyright
16*2139Sjp161948 * notice, this list of conditions and the following disclaimer in
17*2139Sjp161948 * the documentation and/or other materials provided with the
18*2139Sjp161948 * distribution.
19*2139Sjp161948 *
20*2139Sjp161948 * 3. All advertising materials mentioning features or use of this
21*2139Sjp161948 * software must display the following acknowledgment:
22*2139Sjp161948 * "This product includes software developed by the OpenSSL Project
23*2139Sjp161948 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24*2139Sjp161948 *
25*2139Sjp161948 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26*2139Sjp161948 * endorse or promote products derived from this software without
27*2139Sjp161948 * prior written permission. For written permission, please contact
28*2139Sjp161948 * openssl-core@openssl.org.
29*2139Sjp161948 *
30*2139Sjp161948 * 5. Products derived from this software may not be called "OpenSSL"
31*2139Sjp161948 * nor may "OpenSSL" appear in their names without prior written
32*2139Sjp161948 * permission of the OpenSSL Project.
33*2139Sjp161948 *
34*2139Sjp161948 * 6. Redistributions of any form whatsoever must retain the following
35*2139Sjp161948 * acknowledgment:
36*2139Sjp161948 * "This product includes software developed by the OpenSSL Project
37*2139Sjp161948 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38*2139Sjp161948 *
39*2139Sjp161948 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40*2139Sjp161948 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41*2139Sjp161948 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42*2139Sjp161948 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43*2139Sjp161948 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44*2139Sjp161948 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45*2139Sjp161948 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46*2139Sjp161948 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47*2139Sjp161948 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48*2139Sjp161948 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49*2139Sjp161948 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50*2139Sjp161948 * OF THE POSSIBILITY OF SUCH DAMAGE.
51*2139Sjp161948 * ====================================================================
52*2139Sjp161948 *
53*2139Sjp161948 * This product includes cryptographic software written by Eric Young
54*2139Sjp161948 * (eay@cryptsoft.com). This product includes software written by Tim
55*2139Sjp161948 * Hudson (tjh@cryptsoft.com).
56*2139Sjp161948 *
57*2139Sjp161948 */
58*2139Sjp161948
59*2139Sjp161948 #include <ctype.h>
60*2139Sjp161948 #include <e_os.h>
61*2139Sjp161948 #include "o_str.h"
62*2139Sjp161948
OPENSSL_strncasecmp(const char * str1,const char * str2,size_t n)63*2139Sjp161948 int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n)
64*2139Sjp161948 {
65*2139Sjp161948 #if defined(OPENSSL_IMPLEMENTS_strncasecmp)
66*2139Sjp161948 while (*str1 && *str2 && n)
67*2139Sjp161948 {
68*2139Sjp161948 int res = toupper(*str1) - toupper(*str2);
69*2139Sjp161948 if (res) return res < 0 ? -1 : 1;
70*2139Sjp161948 str1++;
71*2139Sjp161948 str2++;
72*2139Sjp161948 n--;
73*2139Sjp161948 }
74*2139Sjp161948 if (n == 0)
75*2139Sjp161948 return 0;
76*2139Sjp161948 if (*str1)
77*2139Sjp161948 return 1;
78*2139Sjp161948 if (*str2)
79*2139Sjp161948 return -1;
80*2139Sjp161948 return 0;
81*2139Sjp161948 #else
82*2139Sjp161948 /* Recursion hazard warning! Whenever strncasecmp is #defined as
83*2139Sjp161948 * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be
84*2139Sjp161948 * defined as well. */
85*2139Sjp161948 return strncasecmp(str1, str2, n);
86*2139Sjp161948 #endif
87*2139Sjp161948 }
OPENSSL_strcasecmp(const char * str1,const char * str2)88*2139Sjp161948 int OPENSSL_strcasecmp(const char *str1, const char *str2)
89*2139Sjp161948 {
90*2139Sjp161948 #if defined(OPENSSL_IMPLEMENTS_strncasecmp)
91*2139Sjp161948 return OPENSSL_strncasecmp(str1, str2, (size_t)-1);
92*2139Sjp161948 #else
93*2139Sjp161948 return strcasecmp(str1, str2);
94*2139Sjp161948 #endif
95*2139Sjp161948 }
96*2139Sjp161948
OPENSSL_memcmp(const void * v1,const void * v2,size_t n)97*2139Sjp161948 int OPENSSL_memcmp(const void *v1,const void *v2,size_t n)
98*2139Sjp161948 {
99*2139Sjp161948 const unsigned char *c1=v1,*c2=v2;
100*2139Sjp161948 int ret=0;
101*2139Sjp161948
102*2139Sjp161948 while(n && (ret=*c1-*c2)==0) n--,c1++,c2++;
103*2139Sjp161948
104*2139Sjp161948 return ret;
105*2139Sjp161948 }
106