Sat Aug 6 00:39:29 2011

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: 280811 $")
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    int res = -1;
00045    char *opt = data;
00046 
00047    if (!chan)
00048       return -1;
00049 
00050    if (strchr(opt, '|')) {
00051       char name[80], num[80];
00052 
00053       data = strsep(&opt, "|");
00054       ast_callerid_split(opt, name, sizeof(name), num, sizeof(num));
00055 
00056       if (!strncasecmp("all", data, 3)) {
00057          snprintf(buf, len, "\"%s\" <%s>", name, num);
00058          res = 0;
00059       } else if (!strncasecmp("name", data, 4)) {
00060          ast_copy_string(buf, name, len);
00061          res = 0;
00062       } else if (!strncasecmp("num", data, 3) ||
00063             !strncasecmp("number", data, 6)) {
00064 
00065          ast_copy_string(buf, num, len);
00066          res = 0;
00067       } else {
00068          ast_log(LOG_ERROR, "Unknown callerid data type '%s'.\n", data);
00069       }
00070    } else {
00071       ast_channel_lock(chan);
00072 
00073       if (!strncasecmp("all", data, 3)) {
00074          snprintf(buf, len, "\"%s\" <%s>",
00075              S_OR(chan->cid.cid_name, ""),
00076              S_OR(chan->cid.cid_num, ""));
00077          res = 0;
00078       } else if (!strncasecmp("name", data, 4)) {
00079          if (chan->cid.cid_name) {
00080             ast_copy_string(buf, chan->cid.cid_name, len);
00081             res = 0;
00082          }
00083       } else if (!strncasecmp("num", data, 3)
00084                || !strncasecmp("number", data, 6)) {
00085          if (chan->cid.cid_num) {
00086             ast_copy_string(buf, chan->cid.cid_num, len);
00087             res = 0;
00088          }
00089       } else if (!strncasecmp("ani", data, 3)) {
00090          if (chan->cid.cid_ani) {
00091             ast_copy_string(buf, chan->cid.cid_ani, len);
00092             res = 0;
00093          }
00094       } else if (!strncasecmp("dnid", data, 4)) {
00095          if (chan->cid.cid_dnid) {
00096             ast_copy_string(buf, chan->cid.cid_dnid, len);
00097             res = 0;
00098          }
00099       } else if (!strncasecmp("rdnis", data, 5)) {
00100          if (chan->cid.cid_rdnis) {
00101             ast_copy_string(buf, chan->cid.cid_rdnis, len);
00102             res = 0;
00103          }
00104       } else {
00105          ast_log(LOG_ERROR, "Unknown callerid data type '%s'.\n", data);
00106       }
00107 
00108       ast_channel_unlock(chan);
00109    }
00110 
00111    return res;
00112 }
00113 
00114 static int callerid_write(struct ast_channel *chan, char *cmd, char *data,
00115            const char *value)
00116 {
00117    int valid = 1;
00118    if (!value || !chan)
00119       return -1;
00120 
00121    if (!strncasecmp("all", data, 3)) {
00122       char name[256];
00123       char num[256];
00124 
00125       if (!ast_callerid_split(value, name, sizeof(name), num, sizeof(num))) {
00126          ast_set_callerid(chan, num, name, num);
00127          if (chan->cdr)
00128             ast_cdr_setcid(chan->cdr, chan);
00129       }
00130    } else if (!strncasecmp("name", data, 4)) {
00131       ast_set_callerid(chan, NULL, value, NULL);
00132       if (chan->cdr)
00133          ast_cdr_setcid(chan->cdr, chan);
00134    } else if (!strncasecmp("num", data, 3) ||
00135          !strncasecmp("number", data, 6)) {
00136       ast_set_callerid(chan, value, NULL, NULL);
00137       if (chan->cdr)
00138          ast_cdr_setcid(chan->cdr, chan);
00139    } else if (!strncasecmp("ani", data, 3)) {
00140       ast_set_callerid(chan, NULL, NULL, value);
00141       if (chan->cdr)
00142          ast_cdr_setcid(chan->cdr, chan);
00143    } else if (!strncasecmp("dnid", data, 4)) {
00144       ast_channel_lock(chan);
00145       if (chan->cid.cid_dnid)
00146          free(chan->cid.cid_dnid);
00147       chan->cid.cid_dnid = ast_strdup(value);
00148       if (chan->cdr)
00149          ast_cdr_setcid(chan->cdr, chan);
00150       ast_channel_unlock(chan);
00151    } else if (!strncasecmp("rdnis", data, 5)) {
00152       ast_channel_lock(chan);
00153       if (chan->cid.cid_rdnis)
00154          free(chan->cid.cid_rdnis);
00155       chan->cid.cid_rdnis = ast_strdup(value);
00156       if (chan->cdr)
00157          ast_cdr_setcid(chan->cdr, chan);
00158       ast_channel_unlock(chan);
00159    } else {
00160       ast_log(LOG_ERROR, "Unknown callerid data type '%s'.\n", data);
00161       valid = 0;
00162    }
00163 
00164    if (valid) {
00165       chan->cid.cid_tns = 1;
00166    }
00167 
00168    return 0;
00169 }
00170 
00171 static struct ast_custom_function callerid_function = {
00172    .name = "CALLERID",
00173    .synopsis = "Gets or sets Caller*ID data on the channel.",
00174    .syntax = "CALLERID(datatype[,<optional-CID>])",
00175    .desc =
00176       "Gets or sets Caller*ID data on the channel.  The allowable datatypes\n"
00177       "are \"all\", \"name\", \"num\", \"ANI\", \"DNID\", \"RDNIS\".\n"
00178       "Uses channel callerid by default or optional callerid, if specified.\n",
00179    .read = callerid_read,
00180    .write = callerid_write,
00181 };
00182 
00183 static int unload_module(void)
00184 {
00185    return ast_custom_function_unregister(&callerid_function);
00186 }
00187 
00188 static int load_module(void)
00189 {
00190    return ast_custom_function_register(&callerid_function);
00191 }
00192 
00193 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Caller ID related dialplan function");

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