1 /* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */ 2 /* Written by Richard Levitte (richard (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh (at) 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 } 112
