Branch data Line data Source code
1 : : /* crypto/buffer/buffer.c */
2 : : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 : : * All rights reserved.
4 : : *
5 : : * This package is an SSL implementation written
6 : : * by Eric Young (eay@cryptsoft.com).
7 : : * The implementation was written so as to conform with Netscapes SSL.
8 : : *
9 : : * This library is free for commercial and non-commercial use as long as
10 : : * the following conditions are aheared to. The following conditions
11 : : * apply to all code found in this distribution, be it the RC4, RSA,
12 : : * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 : : * included with this distribution is covered by the same copyright terms
14 : : * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 : : *
16 : : * Copyright remains Eric Young's, and as such any Copyright notices in
17 : : * the code are not to be removed.
18 : : * If this package is used in a product, Eric Young should be given attribution
19 : : * as the author of the parts of the library used.
20 : : * This can be in the form of a textual message at program startup or
21 : : * in documentation (online or textual) provided with the package.
22 : : *
23 : : * Redistribution and use in source and binary forms, with or without
24 : : * modification, are permitted provided that the following conditions
25 : : * are met:
26 : : * 1. Redistributions of source code must retain the copyright
27 : : * notice, this list of conditions and the following disclaimer.
28 : : * 2. Redistributions in binary form must reproduce the above copyright
29 : : * notice, this list of conditions and the following disclaimer in the
30 : : * documentation and/or other materials provided with the distribution.
31 : : * 3. All advertising materials mentioning features or use of this software
32 : : * must display the following acknowledgement:
33 : : * "This product includes cryptographic software written by
34 : : * Eric Young (eay@cryptsoft.com)"
35 : : * The word 'cryptographic' can be left out if the rouines from the library
36 : : * being used are not cryptographic related :-).
37 : : * 4. If you include any Windows specific code (or a derivative thereof) from
38 : : * the apps directory (application code) you must include an acknowledgement:
39 : : * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 : : *
41 : : * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 : : * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 : : * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 : : * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 : : * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 : : * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 : : * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 : : * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 : : * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 : : * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 : : * SUCH DAMAGE.
52 : : *
53 : : * The licence and distribution terms for any publically available version or
54 : : * derivative of this code cannot be changed. i.e. this code cannot simply be
55 : : * copied and put under another distribution licence
56 : : * [including the GNU Public Licence.]
57 : : */
58 : :
59 : : #define OPENSSL_FIPSAPI
60 : :
61 : : #include <stdio.h>
62 : : #include "cryptlib.h"
63 : : #include <openssl/buffer.h>
64 : :
65 : 10262 : size_t BUF_strnlen(const char *str, size_t maxlen)
66 : : {
67 : : const char *p;
68 : :
69 [ + + ][ + - ]: 145914 : for (p = str; maxlen-- != 0 && *p != '\0'; ++p)
70 : : ;
71 : :
72 : 10262 : return p - str;
73 : : }
74 : :
75 : 10196 : char *BUF_strdup(const char *str)
76 : : {
77 [ + - ]: 10196 : if (str == NULL) return(NULL);
78 : 10196 : return BUF_strndup(str, strlen(str));
79 : : }
80 : :
81 : 10262 : char *BUF_strndup(const char *str, size_t siz)
82 : : {
83 : : char *ret;
84 : :
85 [ + - ]: 10262 : if (str == NULL) return(NULL);
86 : :
87 : 10262 : siz = BUF_strnlen(str, siz);
88 : :
89 : 10262 : ret=OPENSSL_malloc(siz+1);
90 [ - + ]: 10262 : if (ret == NULL)
91 : : {
92 : 0 : BUFerr(BUF_F_BUF_STRNDUP,ERR_R_MALLOC_FAILURE);
93 : 0 : return(NULL);
94 : : }
95 : 10262 : BUF_strlcpy(ret,str,siz+1);
96 : 10262 : return(ret);
97 : : }
98 : :
99 : 1322 : void *BUF_memdup(const void *data, size_t siz)
100 : : {
101 : : void *ret;
102 : :
103 [ + - ]: 1322 : if (data == NULL) return(NULL);
104 : :
105 : 1322 : ret=OPENSSL_malloc(siz);
106 [ - + ]: 1322 : if (ret == NULL)
107 : : {
108 : 0 : BUFerr(BUF_F_BUF_MEMDUP,ERR_R_MALLOC_FAILURE);
109 : 0 : return(NULL);
110 : : }
111 : 1322 : return memcpy(ret, data, siz);
112 : : }
113 : :
114 : 108021 : size_t BUF_strlcpy(char *dst, const char *src, size_t size)
115 : : {
116 : 108021 : size_t l = 0;
117 [ + + ][ + + ]: 1563259 : for(; size > 1 && *src; size--)
118 : : {
119 : 1455238 : *dst++ = *src++;
120 : 1455238 : l++;
121 : : }
122 [ + - ]: 108021 : if (size)
123 : 108021 : *dst = '\0';
124 : 108021 : return l + strlen(src);
125 : : }
126 : :
127 : 19577 : size_t BUF_strlcat(char *dst, const char *src, size_t size)
128 : : {
129 : 19577 : size_t l = 0;
130 [ + - ][ + + ]: 303073 : for(; size > 0 && *dst; size--, dst++)
131 : 283496 : l++;
132 : 19577 : return l + BUF_strlcpy(dst, src, size);
133 : : }
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