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Diffstat (limited to 'trunk/funcs/func_sha1.c')
-rw-r--r-- | trunk/funcs/func_sha1.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/trunk/funcs/func_sha1.c b/trunk/funcs/func_sha1.c new file mode 100644 index 000000000..6474140dd --- /dev/null +++ b/trunk/funcs/func_sha1.c @@ -0,0 +1,76 @@ +/* + * Asterisk -- An open source telephony toolkit. + * + * Copyright (C) 2006, Digium, Inc. + * Copyright (C) 2006, Claude Patry + * + * See http://www.asterisk.org for more information about + * the Asterisk project. Please do not directly contact + * any of the maintainers of this project for assistance; + * the project provides a web site, mailing lists and IRC + * channels for your use. + * + * This program is free software, distributed under the terms of + * the GNU General Public License Version 2. See the LICENSE file + * at the top of the source tree. + */ + +/*! \file + * + * \brief SHA1 digest related dialplan functions + * + * \author Claude Patry <cpatry@gmail.com> + * + * \ingroup functions + */ + +#include "asterisk.h" + +ASTERISK_FILE_VERSION(__FILE__, "$Revision$") + +#include "asterisk/module.h" +#include "asterisk/pbx.h" + +static int sha1(struct ast_channel *chan, const char *cmd, char *data, + char *buf, size_t len) +{ + *buf = '\0'; + + if (ast_strlen_zero(data)) { + ast_log(LOG_WARNING, "Syntax: SHA1(<data>) - missing argument!\n"); + return -1; + } + + if (len >= 41) + ast_sha1_hash(buf, data); + else { + ast_log(LOG_ERROR, + "Insufficient space to produce SHA1 hash result (%d < 41)\n", + (int) len); + } + + return 0; +} + +static struct ast_custom_function sha1_function = { + .name = "SHA1", + .synopsis = "Computes a SHA1 digest", + .syntax = "SHA1(<data>)", + .read = sha1, + .desc = "Generate a SHA1 digest via the SHA1 algorythm.\n" + " Example: Set(sha1hash=${SHA1(junky)})\n" + " Sets the asterisk variable sha1hash to the string '60fa5675b9303eb62f99a9cd47f9f5837d18f9a0'\n" + " which is known as his hash\n", +}; + +static int unload_module(void) +{ + return ast_custom_function_unregister(&sha1_function); +} + +static int load_module(void) +{ + return ast_custom_function_register(&sha1_function); +} + +AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "SHA-1 computation dialplan function"); |