mirror of https://github.com/openssl/openssl.git
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */
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/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
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* project 2003.
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*/
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/* ====================================================================
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* Copyright (c) 2003 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <ctype.h>
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#include <e_os.h>
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#include "o_str.h"
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int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n)
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{
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#if defined(OPENSSL_IMPLEMENTS_strncasecmp)
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while (*str1 && *str2 && n)
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{
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int res = toupper(*str1) - toupper(*str2);
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if (res) return res < 0 ? -1 : 1;
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str1++;
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str2++;
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n--;
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}
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if (n == 0)
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return 0;
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if (*str1)
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return 1;
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if (*str2)
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return -1;
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return 0;
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#else
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/* Recursion hazard warning! Whenever strncasecmp is #defined as
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* OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be
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* defined as well. */
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return strncasecmp(str1, str2, n);
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#endif
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}
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int OPENSSL_strcasecmp(const char *str1, const char *str2)
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{
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#if defined(OPENSSL_IMPLEMENTS_strncasecmp)
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return OPENSSL_strncasecmp(str1, str2, (size_t)-1);
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#else
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return strcasecmp(str1, str2);
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#endif
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}
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int OPENSSL_memcmp(const void *v1,const void *v2,size_t n)
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{
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const unsigned char *c1=v1,*c2=v2;
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int ret=0;
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while(n && (ret=*c1-*c2)==0) n--,c1++,c2++;
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return ret;
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}
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