openssl/crypto/buffer/buf_str.c

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/* crypto/buffer/buf_str.c */
/* ====================================================================
* Copyright (c) 2007 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
* licensing@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 <stdio.h>
#include "cryptlib.h"
#include <openssl/buffer.h>
char *BUF_strdup(const char *str)
{
if (str == NULL)
return (NULL);
return BUF_strndup(str, strlen(str));
}
char *BUF_strndup(const char *str, size_t siz)
{
char *ret;
if (str == NULL)
return (NULL);
ret = OPENSSL_malloc(siz + 1);
if (ret == NULL) {
BUFerr(BUF_F_BUF_STRNDUP, ERR_R_MALLOC_FAILURE);
return (NULL);
}
BUF_strlcpy(ret, str, siz + 1);
return (ret);
}
void *BUF_memdup(const void *data, size_t siz)
{
void *ret;
if (data == NULL)
return (NULL);
ret = OPENSSL_malloc(siz);
if (ret == NULL) {
BUFerr(BUF_F_BUF_MEMDUP, ERR_R_MALLOC_FAILURE);
return (NULL);
}
return memcpy(ret, data, siz);
}
size_t BUF_strlcpy(char *dst, const char *src, size_t size)
{
size_t l = 0;
for (; size > 1 && *src; size--) {
*dst++ = *src++;
l++;
}
if (size)
*dst = '\0';
return l + strlen(src);
}
size_t BUF_strlcat(char *dst, const char *src, size_t size)
{
size_t l = 0;
for (; size > 0 && *dst; size--, dst++)
l++;
return l + BUF_strlcpy(dst, src, size);
}