OpenSSL  1.0.1c
 All Classes Files Functions Variables Typedefs Enumerations Enumerator Macros
buffer.h
Go to the documentation of this file.
1 /* crypto/buffer/buffer.h */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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 #ifndef HEADER_BUFFER_H
60 #define HEADER_BUFFER_H
61 
62 #include <openssl/ossl_typ.h>
63 
64 #ifdef __cplusplus
65 extern "C" {
66 #endif
67 
68 #include <stddef.h>
69 
70 #if !defined(NO_SYS_TYPES_H)
71 #include <sys/types.h>
72 #endif
73 
74 /* Already declared in ossl_typ.h */
75 /* typedef struct buf_mem_st BUF_MEM; */
76 
77 struct buf_mem_st
78  {
79  size_t length; /* current number of bytes */
80  char *data;
81  size_t max; /* size of buffer */
82  };
83 
84 BUF_MEM *BUF_MEM_new(void);
85 void BUF_MEM_free(BUF_MEM *a);
86 int BUF_MEM_grow(BUF_MEM *str, size_t len);
87 int BUF_MEM_grow_clean(BUF_MEM *str, size_t len);
88 char * BUF_strdup(const char *str);
89 char * BUF_strndup(const char *str, size_t siz);
90 void * BUF_memdup(const void *data, size_t siz);
91 void BUF_reverse(unsigned char *out, unsigned char *in, size_t siz);
92 
93 /* safe string functions */
94 size_t BUF_strlcpy(char *dst,const char *src,size_t siz);
95 size_t BUF_strlcat(char *dst,const char *src,size_t siz);
96 
97 
98 /* BEGIN ERROR CODES */
99 /* The following lines are auto generated by the script mkerr.pl. Any changes
100  * made after this point may be overwritten when the script is next run.
101  */
102 void ERR_load_BUF_strings(void);
103 
104 /* Error codes for the BUF functions. */
105 
106 /* Function codes. */
107 #define BUF_F_BUF_MEMDUP 103
108 #define BUF_F_BUF_MEM_GROW 100
109 #define BUF_F_BUF_MEM_GROW_CLEAN 105
110 #define BUF_F_BUF_MEM_NEW 101
111 #define BUF_F_BUF_STRDUP 102
112 #define BUF_F_BUF_STRNDUP 104
113 
114 /* Reason codes. */
115 
116 #ifdef __cplusplus
117 }
118 #endif
119 #endif