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Diffstat (limited to 'src/include/openssl/buf.h')
-rw-r--r-- | src/include/openssl/buf.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/include/openssl/buf.h b/src/include/openssl/buf.h new file mode 100644 index 0000000..0a0a9b8 --- /dev/null +++ b/src/include/openssl/buf.h @@ -0,0 +1,123 @@ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] */ + +#ifndef OPENSSL_HEADER_BUFFER_H +#define OPENSSL_HEADER_BUFFER_H + +#include <openssl/base.h> + +#if defined(__cplusplus) +extern "C" { +#endif + + +/* Memory and string functions, see also mem.h. */ + + +/* BUF_MEM is a generic buffer object used by OpenSSL. */ +struct buf_mem_st { + size_t length; /* current number of bytes */ + char *data; + size_t max; /* size of buffer */ +}; + +/* BUF_MEM_new creates a new BUF_MEM which has no allocated data buffer. */ +OPENSSL_EXPORT BUF_MEM *BUF_MEM_new(void); + +/* BUF_MEM_free frees |buf->data| if needed and then frees |buf| itself. */ +OPENSSL_EXPORT void BUF_MEM_free(BUF_MEM *buf); + +/* BUF_MEM_grow ensures that |buf| has length |len| and allocates memory if + * needed. If the length of |buf| increased, the new bytes are filled with + * zeros. It returns the length of |buf|, or zero if there's an error. */ +OPENSSL_EXPORT size_t BUF_MEM_grow(BUF_MEM *buf, size_t len); + +/* BUF_MEM_grow_clean acts the same as |BUF_MEM_grow|, but clears the previous + * contents of memory if reallocing. */ +OPENSSL_EXPORT size_t BUF_MEM_grow_clean(BUF_MEM *str, size_t len); + +/* BUF_strdup returns an allocated, duplicate of |str|. */ +OPENSSL_EXPORT char *BUF_strdup(const char *str); + +/* BUF_strnlen returns the number of characters in |str|, excluding the NUL + * byte, but at most |max_len|. This function never reads more than |max_len| + * bytes from |str|. */ +OPENSSL_EXPORT size_t BUF_strnlen(const char *str, size_t max_len); + +/* BUF_strndup returns an allocated, duplicate of |str|, which is, at most, + * |size| bytes. The result is always NUL terminated. */ +OPENSSL_EXPORT char *BUF_strndup(const char *str, size_t size); + +/* BUF_memdup returns an allocated, duplicate of |size| bytes from |data|. */ +OPENSSL_EXPORT void *BUF_memdup(const void *data, size_t size); + +/* BUF_strlcpy acts like strlcpy(3). */ +OPENSSL_EXPORT size_t BUF_strlcpy(char *dst, const char *src, size_t dst_size); + +/* BUF_strlcat acts like strlcat(3). */ +OPENSSL_EXPORT size_t BUF_strlcat(char *dst, const char *src, size_t size); + + +#if defined(__cplusplus) +} /* extern C */ +#endif + +#define BUF_F_BUF_MEM_new 100 +#define BUF_F_buf_mem_grow 101 +#define BUF_F_BUF_strndup 102 +#define BUF_F_BUF_memdup 103 + +#endif /* OPENSSL_HEADER_BUFFER_H */ |