diff options
author | Martin Willi <martin@strongswan.org> | 2006-10-31 12:27:59 +0000 |
---|---|---|
committer | Martin Willi <martin@strongswan.org> | 2006-10-31 12:27:59 +0000 |
commit | db7ef62494fb6859df150e2b06b3ca91881d95af (patch) | |
tree | bd8d6e7e72ba0f27d9b34fa803d61eb243736208 /src/libstrongswan/chunk.h | |
parent | de8b8a8c44c87130a2a5120a4c07262fa6806f6b (diff) | |
download | strongswan-db7ef62494fb6859df150e2b06b3ca91881d95af.tar.bz2 strongswan-db7ef62494fb6859df150e2b06b3ca91881d95af.tar.xz |
better split up of library files "types.h" & "definitions.h"
centralized all printf specifier character definitions
reuse of arginfo handlers
more cleanups
fixed more AMD64 issues
added DEBUG_LEVEL compile flag to exclude DBGn() statements
Diffstat (limited to 'src/libstrongswan/chunk.h')
-rw-r--r-- | src/libstrongswan/chunk.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/libstrongswan/chunk.h b/src/libstrongswan/chunk.h new file mode 100644 index 000000000..93c4b512f --- /dev/null +++ b/src/libstrongswan/chunk.h @@ -0,0 +1,88 @@ +/** + * @file chunk.h + * + * @brief Pointer/lenght abstraction and its functions. + * + */ + +/* + * Copyright (C) 2005-2006 Martin Willi + * Copyright (C) 2005 Jan Hutter + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef CHUNK_H_ +#define CHUNK_H_ + +#include <string.h> +#include <stdarg.h> + +#include <library.h> + +typedef struct chunk_t chunk_t; + +/** + * General purpose pointer/length abstraction. + */ +struct chunk_t { + /** Pointer to start of data */ + u_char *ptr; + /** Length of data in bytes */ + size_t len; +}; + +/** + * A { NULL, 0 }-chunk handy for initialization. + */ +extern chunk_t chunk_empty; + +/** + * Initialize a chunk to point to a static(!) buffer + */ +#define chunk_from_buf(str) { str, sizeof(str) } + +/** + * Clone chunk contents in a newly allocated chunk + */ +chunk_t chunk_clone(chunk_t chunk); + +/** + * Allocate a chunk from concatenation of other chunks. + * mode is a string 'm' and 'c, 'm' means move chunk, + * 'c' means copy chunk. + */ +chunk_t chunk_cat(const char* mode, ...); + +/** + * Free contents of a chunk + */ +void chunk_free(chunk_t *chunk); + +/** + * Allocate a chunk + */ +chunk_t chunk_alloc(size_t bytes); + +/** + * Compare two chunks for equality, + * NULL chunks are never equal. + */ +bool chunk_equals(chunk_t a, chunk_t b); + +/** + * Compare two chunks for equality, + * NULL chunks are always equal. + */ +bool chunk_equals_or_null(chunk_t a, chunk_t b); + +#endif /* CHUNK_H_ */ |