From c67c720fc8fcecf44299349c66e1eb5b72720acd Mon Sep 17 00:00:00 2001
From: Michael Geddes <openwrt@frog.wheelycreek.net>
Date: Mon, 19 Jan 2009 12:11:41 +0000
Subject: Add pickup2 module support.

---
 .../package/asterisk-xip/patches/040-pickup2.patch | 284 +++++++++++++++++++++
 1 file changed, 284 insertions(+)
 create mode 100644 contrib/package/asterisk-xip/patches/040-pickup2.patch

diff --git a/contrib/package/asterisk-xip/patches/040-pickup2.patch b/contrib/package/asterisk-xip/patches/040-pickup2.patch
new file mode 100644
index 000000000..cc665ec37
--- /dev/null
+++ b/contrib/package/asterisk-xip/patches/040-pickup2.patch
@@ -0,0 +1,284 @@
+*** xx/apps/app_pickup2.c	1970-01-01 08:00:00.000000000 +0800
+--- asterisk-1.4.22/apps/app_pickup2.c	2009-01-19 17:44:07.483909506 +0900
+***************
+*** 0 ****
+--- 1,279 ----
++ /*
++  * Asterisk -- A telephony toolkit for Linux.
++  *
++  * Pickup, channel independent call pickup
++  *
++  * Copyright (C) 2005-2007, Thorsten Knabe <ast@thorsten-knabe.de>
++  * 
++  * Copyright (C) 2004, Junghanns.NET GmbH
++  *
++  * Klaus-Peter Junghanns <kpj@junghanns.net>
++  *
++  * Copyright (C) 2004, Florian Overkamp <florian@obsimref.com>
++  *
++  * This program is free software, distributed under the terms of
++  * the GNU General Public License
++  */
++ 
++ /*** MODULEINFO
++ 	<defaultenabled>yes</defaultenabled>
++  ***/
++ 
++ #include "asterisk.h"
++ 
++ ASTERISK_FILE_VERSION(__FILE__, "$Revision: 2 $")
++ 
++ #include <stdlib.h>
++ #include <unistd.h>
++ #include <string.h>
++ #include <stdio.h>
++ #include <signal.h>
++ #include <pthread.h>
++ #include "asterisk/lock.h"
++ #include "asterisk/file.h"
++ #include "asterisk/logger.h"
++ #include "asterisk/channel.h"
++ #include "asterisk/pbx.h"
++ #include "asterisk/module.h"
++ #include "asterisk/musiconhold.h"
++ #include "asterisk/features.h"
++ #include "asterisk/options.h"
++ 
++ static char *app = "PickUp2";
++ static char *synopsis = "PickUp ringing channel.";
++ static char *descrip = 
++ "  PickUp2(Technology/resource[&Technology2/resource2&...][|<option>]):\n"
++ "Matches the list of prefixes in the parameter list against channels in\n"
++ "state RINGING. If a match is found the channel is picked up and\n"
++ "PICKUP_CHANNEL is set to the picked up channel name. If no matching\n"
++ "channel is found PICKUP_CHANNEL is empty.\n"
++ "Possible options:\n"
++ "B: match on channel name of bridged channel.\n";
++ 
++ static char *app2 = "PickDown2";
++ static char *synopsis2 = "Hangup ringing channel.";
++ static char *descrip2 = 
++ "  PickDown2(Technology/resource[&Technology2/resource2&...][|<option>]):\n"
++ "Matches the list of prefixes in the parameter list against channels in\n"
++ "state RINGING. If a match is found the channel is hung up and\n"
++ "PICKDOWN_CHANNEL is set to the hung up channel name. If no matching\n"
++ "channel is found PICKDOWN_CHANNEL is empty.\n"
++ "Possible options:\n"
++ "B: match on channel name of bridged channel.\n";
++ 
++ static char *app3 = "Steal2";
++ static char *synopsis3 = "Steal a connected channel.";
++ 
++ static char *descrip3 = 
++ "  Steal2(Technology/resource[&Technology2/resource2&...][|<option>]):\n"
++ "Matches the list of prefixes in the parameter list against channels in\n"
++ "state UP. If a match is found the channel is stolen and\n"
++ "STEAL_CHANNEL is set to the stolen channel name. If no matching\n"
++ "channel is found STEAL_CHANNEL is empty.\n"
++ "Possible options:\n"
++ "B: match on channel name of bridged channel.\n";
++ 
++ /* Find channel matching given pattern and state, skipping our own channel.
++  * Returns locked channel, which has to be unlocked using ast_mutex_unlock().
++  * Returns NULL when no matching channel is found.
++  */
++ static struct ast_channel *find_matching_channel(struct ast_channel *chan,
++ 	void *pattern, int chanstate)
++ {
++ 	struct ast_channel *cur;
++ 	char *pat = "";
++ 	char *next_pat = NULL;
++ 	char *option = "";
++ 	struct ast_channel *bridged;
++ 
++ 	/* copy original pattern or use empty pattern if no pattern has been given*/
++ 	if (pattern) {
++ 		pat = alloca(strlen(pattern) + 1);
++ 		strcpy(pat, pattern);
++ 	}
++ 	for (option = pat; *option; option++) {
++ 		if (*option == '|') {
++ 			*option = '\0';
++ 			option++;
++ 			break;
++ 		}
++ 	}
++ 	ast_verbose(VERBOSE_PREFIX_4 
++ 		"find_matching_channel: pattern='%s' option='%s' state=%d\n",
++ 		(char *)pat, option, chanstate);
++ 
++ 	/* match on bridged channel name */
++ 	if (!strcmp("B", option)) {
++ 		/* Iterate over each part of the pattern */
++ 		while (pat) {
++ 			/* find pattern for next iteration, 
++ 			 * terminate current pattern */
++ 			for (next_pat = pat; 
++ 				*next_pat && *next_pat != '&'; next_pat++);
++ 			if (*next_pat == '&') {
++ 				*next_pat = 0;
++ 				next_pat++;
++ 			} else
++ 				next_pat = NULL;
++ 			/* Iterate over all channels */
++ 			cur = ast_channel_walk_locked(NULL);
++ 			while (cur) {
++ 				bridged = ast_bridged_channel(cur);
++ 				if (bridged) {
++ 					ast_verbose(VERBOSE_PREFIX_4 
++ 						"find_matching_channel: trying channel='%s' bridged='%s' "
++ 						"state=%d pattern='%s'\n",
++ 						cur->name, bridged->name, cur->_state, pat);
++ 					if ((cur != chan) && (bridged != chan) &&
++ 						(cur->_state == chanstate) &&
++ 						!strncmp(pat, bridged->name, strlen(pat))) {
++ 						ast_verbose(VERBOSE_PREFIX_4
++ 								"find_matching_channel: "
++ 								"found channel='%s' bridged='%s'\n",
++ 								cur->name, bridged->name);
++ 						return(cur);
++ 					}
++ 				}
++ 				ast_mutex_unlock(&cur->lock);
++ 				cur = ast_channel_walk_locked(cur);
++ 			}
++ 			pat = next_pat;
++ 		}
++ 	} else {
++ 		/* Iterate over each part of the pattern */
++ 		while (pat) {
++ 			/* find pattern for next iteration, 
++ 			 * terminate current pattern */
++ 			for (next_pat = pat; 
++ 				*next_pat && *next_pat != '&'; next_pat++);
++ 			if (*next_pat == '&') {
++ 				*next_pat = 0;
++ 				next_pat++;
++ 			} else
++ 				next_pat = NULL;
++ 			/* Iterate over all channels */
++ 			cur = ast_channel_walk_locked(NULL);
++ 			while (cur) {
++ 				ast_verbose(VERBOSE_PREFIX_4 
++ 					"find_matching_channel: trying channel='%s' "
++ 					"state=%d pattern='%s'\n",
++ 					cur->name, cur->_state, pat);
++ 				if ((cur != chan) && 
++ 					(cur->_state == chanstate) &&
++ 					!strncmp(pat, cur->name, strlen(pat))) {
++ 					ast_verbose(VERBOSE_PREFIX_4
++ 							"find_matching_channel: "
++ 							"found channel='%s'\n",
++ 							cur->name);
++ 					return(cur);
++ 				}
++ 				ast_mutex_unlock(&cur->lock);
++ 				cur = ast_channel_walk_locked(cur);
++ 			}
++ 			pat = next_pat;
++ 		}
++ 	}
++ 	return(NULL);
++ }
++ 
++ static int pickup_channel(struct ast_channel *chan, void *pattern)
++ {
++ 	int ret = 0;
++ 	struct ast_module_user *u;
++ 	struct ast_channel *cur;
++ 	u = ast_module_user_add(chan);
++ 	cur = find_matching_channel(chan, pattern, AST_STATE_RINGING);
++ 	if (cur) {
++ 		ast_verbose(VERBOSE_PREFIX_3 
++ 			"Channel %s picked up ringing channel %s\n",
++ 			chan->name, cur->name);
++ 		pbx_builtin_setvar_helper(chan, "PICKUP_CHANNEL", cur->name);
++ 		if (chan->_state != AST_STATE_UP) {
++ 			ast_answer(chan);
++ 		}
++ 		if (ast_channel_masquerade(cur, chan)) {
++ 			ast_log(LOG_ERROR, "unable to masquerade\n");
++ 			ret = -1;
++ 		}
++ 		ast_mutex_unlock(&cur->lock);
++ 		ast_mutex_unlock(&chan->lock);
++ 	} else {
++ 		pbx_builtin_setvar_helper(chan, "PICKUP_CHANNEL", "");
++ 	}
++ 	ast_module_user_remove(u);
++ 	return(ret);
++ }
++ 
++ static int pickdown_channel(struct ast_channel *chan, void *pattern)
++ {
++ 	int ret = 0;
++ 	struct ast_module_user *u;
++ 	struct ast_channel *cur;
++ 	u = ast_module_user_add(chan);
++ 	cur = find_matching_channel(chan, pattern, AST_STATE_RINGING);
++ 	if (cur) {
++                 ast_verbose(VERBOSE_PREFIX_3 
++ 			"Channel %s hung up ringing channel %s\n",
++ 			chan->name, cur->name);
++ 		pbx_builtin_setvar_helper(chan, "PICKDOWN_CHANNEL", cur->name);
++ 		ast_softhangup_nolock(cur, AST_SOFTHANGUP_DEV);
++ 		ast_mutex_unlock(&cur->lock);
++ 	} else {
++ 		pbx_builtin_setvar_helper(chan, "PICKDOWN_CHANNEL", "");
++ 	}
++ 	ast_module_user_remove(u);
++ 	return(ret);
++ }
++ 
++ static int steal_channel(struct ast_channel *chan, void *pattern)
++ {
++ 	int ret = 0;
++ 	struct ast_module_user *u;
++ 	struct ast_channel *cur;
++ 	u = ast_module_user_add(chan);
++ 	cur = find_matching_channel(chan, pattern, AST_STATE_UP);
++ 	if (cur) {
++ 		ast_verbose(VERBOSE_PREFIX_3 
++ 			"Channel %s stole channel %s\n",
++ 			chan->name, cur->name);
++ 		pbx_builtin_setvar_helper(chan, "STEAL_CHANNEL", cur->name);
++ 		if (chan->_state != AST_STATE_UP) {
++ 			ast_answer(chan);
++ 		}
++ 		if (cur->_bridge) {
++ 			if (!ast_mutex_lock(&cur->_bridge->lock)) {
++ 				ast_moh_stop(cur->_bridge);
++ 				ast_mutex_unlock(&cur->_bridge->lock);
++ 			}
++ 		}
++ 			
++ 		if (ast_channel_masquerade(cur, chan)) {
++ 			ast_log(LOG_ERROR, "unable to masquerade\n");
++ 			ret = -1;
++ 		}
++ 		ast_mutex_unlock(&cur->lock);
++ 		ast_mutex_unlock(&chan->lock);
++ 	} else {
++ 		pbx_builtin_setvar_helper(chan, "STEAL_CHANNEL", "");
++ 	}
++ 	ast_module_user_remove(u);
++ 	return(ret);
++ }
++ 
++ static int unload_module(void)
++ {
++   	ast_module_user_hangup_all();
++ 	ast_unregister_application(app3);
++ 	ast_unregister_application(app2);
++ 	return ast_unregister_application(app);
++ }
++ 
++ static int load_module(void)
++ {
++ 	ast_register_application(app3, steal_channel, synopsis3, descrip3);
++ 	ast_register_application(app2, pickdown_channel, synopsis2, descrip2);
++ 	return ast_register_application(app, pickup_channel, synopsis, descrip);
++ }
++ 
++ AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, 
++     "PickUp2, PickDown2, Steal2 Application");
-- 
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