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- /*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2005, Digium, Inc.
- *
- * Mark Spencer <markster@digium.com>
- *
- * 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 Function to lookup the callerid number, and see if it is blacklisted
- *
- * \author Mark Spencer <markster@digium.com>
- *
- * \ingroup functions
- *
- */
- /*** MODULEINFO
- <support_level>core</support_level>
- ***/
- #include "asterisk.h"
- ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
- #include "asterisk/pbx.h"
- #include "asterisk/module.h"
- #include "asterisk/channel.h"
- #include "asterisk/astdb.h"
- /*** DOCUMENTATION
- <function name="BLACKLIST" language="en_US">
- <synopsis>
- Check if the callerid is on the blacklist.
- </synopsis>
- <syntax />
- <description>
- <para>Uses astdb to check if the Caller*ID is in family <literal>blacklist</literal>.
- Returns <literal>1</literal> or <literal>0</literal>.</para>
- </description>
- <see-also>
- <ref type="function">DB</ref>
- </see-also>
- </function>
- ***/
- static int blacklist_read(struct ast_channel *chan, const char *cmd, char *data, char *buf, size_t len)
- {
- char blacklist[1];
- int bl = 0;
- if (!chan) {
- ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
- return -1;
- }
- if (ast_channel_caller(chan)->id.number.valid && ast_channel_caller(chan)->id.number.str) {
- if (!ast_db_get("blacklist", ast_channel_caller(chan)->id.number.str, blacklist, sizeof (blacklist)))
- bl = 1;
- }
- if (ast_channel_caller(chan)->id.name.valid && ast_channel_caller(chan)->id.name.str) {
- if (!ast_db_get("blacklist", ast_channel_caller(chan)->id.name.str, blacklist, sizeof (blacklist)))
- bl = 1;
- }
- snprintf(buf, len, "%d", bl);
- return 0;
- }
- static int blacklist_read2(struct ast_channel *chan, const char *cmd, char *data, struct ast_str **str, ssize_t len)
- {
- /* 2 bytes is a single integer, plus terminating null */
- if (ast_str_size(*str) - ast_str_strlen(*str) < 2) {
- if (len > ast_str_size(*str) || len == 0) {
- ast_str_make_space(str, len ? len : ast_str_strlen(*str) + 2);
- }
- }
- if (ast_str_size(*str) - ast_str_strlen(*str) >= 2) {
- int res = blacklist_read(chan, cmd, data, ast_str_buffer(*str) + ast_str_strlen(*str), 2);
- ast_str_update(*str);
- return res;
- }
- return -1;
- }
- static struct ast_custom_function blacklist_function = {
- .name = "BLACKLIST",
- .read = blacklist_read,
- .read2 = blacklist_read2,
- };
- static int unload_module(void)
- {
- return ast_custom_function_unregister(&blacklist_function);
- }
- static int load_module(void)
- {
- return ast_custom_function_register(&blacklist_function);
- }
- AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Look up Caller*ID name/number from blacklist database");
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