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8ec86dcf DSH |
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 | |
40720ce3 | 10 | * notice, this list of conditions and the following disclaimer. |
8ec86dcf DSH |
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 | ||
60 | char *BUF_strdup(const char *str) | |
40720ce3 MC |
61 | { |
62 | if (str == NULL) | |
63 | return (NULL); | |
64 | return BUF_strndup(str, strlen(str)); | |
65 | } | |
8ec86dcf DSH |
66 | |
67 | char *BUF_strndup(const char *str, size_t siz) | |
40720ce3 MC |
68 | { |
69 | char *ret; | |
8ec86dcf | 70 | |
40720ce3 MC |
71 | if (str == NULL) |
72 | return (NULL); | |
8ec86dcf | 73 | |
40720ce3 MC |
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 | } | |
8ec86dcf DSH |
82 | |
83 | void *BUF_memdup(const void *data, size_t siz) | |
40720ce3 MC |
84 | { |
85 | void *ret; | |
8ec86dcf | 86 | |
40720ce3 MC |
87 | if (data == NULL) |
88 | return (NULL); | |
8ec86dcf | 89 | |
40720ce3 MC |
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 | } | |
8ec86dcf DSH |
97 | |
98 | size_t BUF_strlcpy(char *dst, const char *src, size_t size) | |
40720ce3 MC |
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 | } | |
8ec86dcf DSH |
109 | |
110 | size_t BUF_strlcat(char *dst, const char *src, size_t size) | |
40720ce3 MC |
111 | { |
112 | size_t l = 0; | |
113 | for (; size > 0 && *dst; size--, dst++) | |
114 | l++; | |
115 | return l + BUF_strlcpy(dst, src, size); | |
116 | } |