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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 | |
60 char *BUF_strdup(const char *str) | |
61 { | |
62 if (str == NULL) return(NULL); | |
63 return BUF_strndup(str, strlen(str)); | |
64 } | |
65 | |
66 char *BUF_strndup(const char *str, size_t siz) | |
67 { | |
68 char *ret; | |
69 | |
70 if (str == NULL) return(NULL); | |
71 | |
72 ret=OPENSSL_malloc(siz+1); | |
73 if (ret == NULL) | |
74 { | |
75 BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE); | |
76 return(NULL); | |
77 } | |
78 BUF_strlcpy(ret,str,siz+1); | |
79 return(ret); | |
80 } | |
81 | |
82 void *BUF_memdup(const void *data, size_t siz) | |
83 { | |
84 void *ret; | |
85 | |
86 if (data == NULL) return(NULL); | |
87 | |
88 ret=OPENSSL_malloc(siz); | |
89 if (ret == NULL) | |
90 { | |
91 BUFerr(BUF_F_BUF_MEMDUP,ERR_R_MALLOC_FAILURE); | |
92 return(NULL); | |
93 } | |
94 return memcpy(ret, data, siz); | |
95 } | |
96 | |
97 size_t BUF_strlcpy(char *dst, const char *src, size_t size) | |
98 { | |
99 size_t l = 0; | |
100 for(; size > 1 && *src; size--) | |
101 { | |
102 *dst++ = *src++; | |
103 l++; | |
104 } | |
105 if (size) | |
106 *dst = '\0'; | |
107 return l + strlen(src); | |
108 } | |
109 | |
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 } | |
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