1 /* crypto/buffer/buf_str.c */
2 /* ====================================================================
3 * Copyright (c) 2007 The OpenSSL Project. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * licensing@OpenSSL.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55
56 #include <stdio.h>
57 #include "cryptlib.h"
58 #include <openssl/buffer.h>
59
BUF_strdup(const char * str)60 char *BUF_strdup(const char *str)
61 {
62 if (str == NULL)
63 return (NULL);
64 return BUF_strndup(str, strlen(str));
65 }
66
BUF_strndup(const char * str,size_t siz)67 char *BUF_strndup(const char *str, size_t siz)
68 {
69 char *ret;
70
71 if (str == NULL)
72 return (NULL);
73
74 ret = OPENSSL_malloc(siz + 1);
75 if (ret == NULL) {
76 BUFerr(BUF_F_BUF_STRNDUP, ERR_R_MALLOC_FAILURE);
77 return (NULL);
78 }
79 BUF_strlcpy(ret, str, siz + 1);
80 return (ret);
81 }
82
BUF_memdup(const void * data,size_t siz)83 void *BUF_memdup(const void *data, size_t siz)
84 {
85 void *ret;
86
87 if (data == NULL)
88 return (NULL);
89
90 ret = OPENSSL_malloc(siz);
91 if (ret == NULL) {
92 BUFerr(BUF_F_BUF_MEMDUP, ERR_R_MALLOC_FAILURE);
93 return (NULL);
94 }
95 return memcpy(ret, data, siz);
96 }
97
BUF_strlcpy(char * dst,const char * src,size_t size)98 size_t BUF_strlcpy(char *dst, const char *src, size_t size)
99 {
100 size_t l = 0;
101 for (; size > 1 && *src; size--) {
102 *dst++ = *src++;
103 l++;
104 }
105 if (size)
106 *dst = '\0';
107 return l + strlen(src);
108 }
109
BUF_strlcat(char * dst,const char * src,size_t size)110 size_t BUF_strlcat(char *dst, const char *src, size_t size)
111 {
112 size_t l = 0;
113 for (; size > 0 && *dst; size--, dst++)
114 l++;
115 return l + BUF_strlcpy(dst, src, size);
116 }
117