/* crypto/o_str.c -*- mode:C; c-file-style: "eay" -*- */

 /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL

  * project 2003.

  */

 /* ====================================================================

  * Copyright (c) 2003 The OpenSSL Project.  All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  *

  * 1. Redistributions of source code must retain the above copyright

  *    notice, this list of conditions and the following disclaimer. 

  *

  * 2. Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in

  *    the documentation and/or other materials provided with the

  *    distribution.

  *

  * 3. All advertising materials mentioning features or use of this

  *    software must display the following acknowledgment:

  *    "This product includes software developed by the OpenSSL Project

  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"

  *

  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to

  *    endorse or promote products derived from this software without

  *    prior written permission. For written permission, please contact

  *    openssl-core@openssl.org.

  *

  * 5. Products derived from this software may not be called "OpenSSL"

  *    nor may "OpenSSL" appear in their names without prior written

  *    permission of the OpenSSL Project.

  *

  * 6. Redistributions of any form whatsoever must retain the following

  *    acknowledgment:

  *    "This product includes software developed by the OpenSSL Project

  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"

  *

  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY

  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR

  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED

  * OF THE POSSIBILITY OF SUCH DAMAGE.

  * ====================================================================

  *

  * This product includes cryptographic software written by Eric Young

  * (eay@cryptsoft.com).  This product includes software written by Tim

  * Hudson (tjh@cryptsoft.com).

  *

  */

 #include <ctype.h>

 #include <e_os.h>

 #include "o_str.h"

 EXPORT_C int OPENSSL_strncasecmp(const char *str1, const char *str2, size_t n)

 	{

 #if defined(OPENSSL_IMPLEMENTS_strncasecmp)

 	while (*str1 && *str2 && n)

 		{

 		int res = toupper(*str1) - toupper(*str2);

 		if (res) return res < 0 ? -1 : 1;

 		str1++;

 		str2++;

 		n--;

 		}

 	if (n == 0)

 		return 0;

 	if (*str1)

 		return 1;

 	if (*str2)

 		return -1;

 		return 0;

 #else

 	/* Recursion hazard warning! Whenever strncasecmp is #defined as

 	 * OPENSSL_strncasecmp, OPENSSL_IMPLEMENTS_strncasecmp must be

 	 * defined as well. */

 	return strncasecmp(str1, str2, n);

 #endif

 	}

 EXPORT_C int OPENSSL_strcasecmp(const char *str1, const char *str2)

 	{

 #if defined(OPENSSL_IMPLEMENTS_strncasecmp)

 	return OPENSSL_strncasecmp(str1, str2, (size_t)-1);

 #else

 	return strcasecmp(str1, str2);

 #endif

 	}

 EXPORT_C int OPENSSL_memcmp(const void *v1,const void *v2,size_t n)

 	{

 	const unsigned char *c1=v1,*c2=v2;

 	int ret=0;

 	while(n && (ret=*c1-*c2)==0) n--,c1++,c2++;

 	return ret;

 	}