Mon Jul 14 17:24:56 2008

Asterisk developer's documentation


func_callerid.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 1999-2006, Digium, Inc.
00005  *
00006  * See http://www.asterisk.org for more information about
00007  * the Asterisk project. Please do not directly contact
00008  * any of the maintainers of this project for assistance;
00009  * the project provides a web site, mailing lists and IRC
00010  * channels for your use.
00011  *
00012  * This program is free software, distributed under the terms of
00013  * the GNU General Public License Version 2. See the LICENSE file
00014  * at the top of the source tree.
00015  */
00016 
00017 /*! \file
00018  *
00019  * \brief Caller ID related dialplan functions
00020  * 
00021  */
00022 
00023 #include "asterisk.h"
00024 
00025 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 90147 $")
00026 
00027 #include <stdlib.h>
00028 #include <stdio.h>
00029 #include <string.h>
00030 #include <sys/types.h>
00031 
00032 #include "asterisk/module.h"
00033 #include "asterisk/channel.h"
00034 #include "asterisk/pbx.h"
00035 #include "asterisk/logger.h"
00036 #include "asterisk/utils.h"
00037 #include "asterisk/app.h"
00038 #include "asterisk/options.h"
00039 #include "asterisk/callerid.h"
00040 
00041 static int callerid_read(struct ast_channel *chan, char *cmd, char *data,
00042           char *buf, size_t len)
00043 {
00044    char *opt = data;
00045 
00046    if (!chan)
00047       return -1;
00048 
00049    if (strchr(opt, '|')) {
00050       char name[80], num[80];
00051 
00052       data = strsep(&opt, "|");
00053       ast_callerid_split(opt, name, sizeof(name), num, sizeof(num));
00054 
00055       if (!strncasecmp("all", data, 3)) {
00056          snprintf(buf, len, "\"%s\" <%s>", name, num);
00057       } else if (!strncasecmp("name", data, 4)) {
00058          ast_copy_string(buf, name, len);
00059       } else if (!strncasecmp("num", data, 3) ||
00060             !strncasecmp("number", data, 6)) {
00061 
00062          ast_copy_string(buf, num, len);
00063       } else {
00064          ast_log(LOG_ERROR, "Unknown callerid data type '%s'.\n", data);
00065       }
00066    } else {
00067       ast_channel_lock(chan);
00068 
00069       if (!strncasecmp("all", data, 3)) {
00070          snprintf(buf, len, "\"%s\" <%s>",
00071              S_OR(chan->cid.cid_name, ""),
00072              S_OR(chan->cid.cid_num, ""));
00073       } else if (!strncasecmp("name", data, 4)) {
00074          if (chan->cid.cid_name) {
00075             ast_copy_string(buf, chan->cid.cid_name, len);
00076          }
00077       } else if (!strncasecmp("num", data, 3)
00078                || !strncasecmp("number", data, 6)) {
00079          if (chan->cid.cid_num) {
00080             ast_copy_string(buf, chan->cid.cid_num, len);
00081          }
00082       } else if (!strncasecmp("ani", data, 3)) {
00083          if (chan->cid.cid_ani) {
00084             ast_copy_string(buf, chan->cid.cid_ani, len);
00085          }
00086       } else if (!strncasecmp("dnid", data, 4)) {
00087          if (chan->cid.cid_dnid) {
00088             ast_copy_string(buf, chan->cid.cid_dnid, len);
00089          }
00090       } else if (!strncasecmp("rdnis", data, 5)) {
00091          if (chan->cid.cid_rdnis) {
00092             ast_copy_string(buf, chan->cid.cid_rdnis, len);
00093          }
00094       } else {
00095          ast_log(LOG_ERROR, "Unknown callerid data type '%s'.\n", data);
00096       }
00097 
00098       ast_channel_unlock(chan);
00099    }
00100 
00101    return 0;
00102 }
00103 
00104 static int callerid_write(struct ast_channel *chan, char *cmd, char *data,
00105            const char *value)
00106 {
00107    if (!value || !chan)
00108       return -1;
00109 
00110    if (!strncasecmp("all", data, 3)) {
00111       char name[256];
00112       char num[256];
00113 
00114       if (!ast_callerid_split(value, name, sizeof(name), num, sizeof(num)))
00115          ast_set_callerid(chan, num, name, num);
00116    } else if (!strncasecmp("name", data, 4)) {
00117       ast_set_callerid(chan, NULL, value, NULL);
00118    } else if (!strncasecmp("num", data, 3) ||
00119          !strncasecmp("number", data, 6)) {
00120       ast_set_callerid(chan, value, NULL, NULL);
00121    } else if (!strncasecmp("ani", data, 3)) {
00122       ast_set_callerid(chan, NULL, NULL, value);
00123    } else if (!strncasecmp("dnid", data, 4)) {
00124       ast_channel_lock(chan);
00125       if (chan->cid.cid_dnid)
00126          free(chan->cid.cid_dnid);
00127       chan->cid.cid_dnid = ast_strdup(value);
00128       ast_channel_unlock(chan);
00129    } else if (!strncasecmp("rdnis", data, 5)) {
00130       ast_channel_lock(chan);
00131       if (chan->cid.cid_rdnis)
00132          free(chan->cid.cid_rdnis);
00133       chan->cid.cid_rdnis = ast_strdup(value);
00134       ast_channel_unlock(chan);
00135    } else {
00136       ast_log(LOG_ERROR, "Unknown callerid data type '%s'.\n", data);
00137    }
00138 
00139    return 0;
00140 }
00141 
00142 static struct ast_custom_function callerid_function = {
00143    .name = "CALLERID",
00144    .synopsis = "Gets or sets Caller*ID data on the channel.",
00145    .syntax = "CALLERID(datatype[,<optional-CID>])",
00146    .desc =
00147       "Gets or sets Caller*ID data on the channel.  The allowable datatypes\n"
00148       "are \"all\", \"name\", \"num\", \"ANI\", \"DNID\", \"RDNIS\".\n"
00149       "Uses channel callerid by default or optional callerid, if specified.\n",
00150    .read = callerid_read,
00151    .write = callerid_write,
00152 };
00153 
00154 static int unload_module(void)
00155 {
00156    return ast_custom_function_unregister(&callerid_function);
00157 }
00158 
00159 static int load_module(void)
00160 {
00161    return ast_custom_function_register(&callerid_function);
00162 }
00163 
00164 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Caller ID related dialplan function");

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