rename "parking" to "features" in preparation for some more (possibly post 1.0) feature additions

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@3463 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 816 insertions, 0 deletions

diff --git a/res/res_features.c b/res/res_features.c
new file mode 100755
index 000000000..b55f1be5e
--- /dev/null
+++ b/res/res_features.c
@@ -0,0 +1,816 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Routines implementing call parking
+ * 
+ * Copyright (C) 1999, Mark Spencer
+ *
+ * Mark Spencer <markster@linux-support.net>
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#include <asterisk/lock.h>
+#include <asterisk/file.h>
+#include <asterisk/logger.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/options.h>
+#include <asterisk/module.h>
+#include <asterisk/translate.h>
+#include <asterisk/say.h>
+#include <asterisk/channel_pvt.h>
+#include <asterisk/features.h>
+#include <asterisk/musiconhold.h>
+#include <asterisk/config.h>
+#include <asterisk/cli.h>
+#include <asterisk/manager.h>
+#include <asterisk/utils.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/time.h>
+#include <sys/signal.h>
+#include <netinet/in.h>
+
+#define DEFAULT_PARK_TIME 45000
+
+static char *parkedcall = "ParkedCall";
+
+/* No more than 45 seconds parked before you do something with them */
+static int parkingtime = DEFAULT_PARK_TIME;
+
+/* Context for which parking is made accessible */
+static char parking_con[AST_MAX_EXTENSION] = "parkedcalls";
+
+/* Extension you type to park the call */
+static char parking_ext[AST_MAX_EXTENSION] = "700";
+
+static char pickup_ext[AST_MAX_EXTENSION] = "*8";
+
+/* First available extension for parking */
+static int parking_start = 701;
+
+/* Last available extension for parking */
+static int parking_stop = 750;
+
+/* Registrar for operations */
+static char *registrar = "res_parking";
+
+static char *synopsis = "Answer a parked call";
+
+static char *descrip = "ParkedCall(exten):"
+"Used to connect to a parked call.  This Application is always\n"
+"registered internally and does not need to be explicitly added\n"
+"into the dialplan, although you should include the 'parkedcalls'\n"
+"context.\n";
+
+struct parkeduser {
+	struct ast_channel *chan;
+	struct timeval start;
+	int parkingnum;
+	/* Where to go if our parking time expires */
+	char context[AST_MAX_EXTENSION];
+	char exten[AST_MAX_EXTENSION];
+	int priority;
+	int parkingtime;
+	struct parkeduser *next;
+};
+
+static struct parkeduser *parkinglot;
+
+AST_MUTEX_DEFINE_STATIC(parking_lock);
+
+static pthread_t parking_thread;
+
+STANDARD_LOCAL_USER;
+
+LOCAL_USER_DECL;
+
+char *ast_parking_ext(void)
+{
+	return parking_ext;
+}
+
+char *ast_pickup_ext(void)
+{
+	return pickup_ext;
+}
+
+int ast_park_call(struct ast_channel *chan, struct ast_channel *peer, int timeout, int *extout)
+{
+	/* We put the user in the parking list, then wake up the parking thread to be sure it looks
+	   after these channels too */
+	struct parkeduser *pu, *cur;
+	int x;
+	pu = malloc(sizeof(struct parkeduser));
+	if (pu) {
+		ast_mutex_lock(&parking_lock);
+		for (x=parking_start;x<=parking_stop;x++) {
+			cur = parkinglot;
+			while(cur) {
+				if (cur->parkingnum == x) 
+					break;
+				cur = cur->next;
+			}
+			if (!cur)
+				break;
+		}
+		if (x <= parking_stop) {
+			chan->appl = "Parked Call";
+			chan->data = NULL; 
+
+			pu->chan = chan;
+			/* Start music on hold */
+			ast_moh_start(pu->chan, NULL);
+			gettimeofday(&pu->start, NULL);
+			pu->parkingnum = x;
+			if (timeout > 0)
+				pu->parkingtime = timeout;
+			else
+				pu->parkingtime = parkingtime;
+			if (extout)
+				*extout = x;
+			/* Remember what had been dialed, so that if the parking
+			   expires, we try to come back to the same place */
+			if (strlen(chan->macrocontext))
+				strncpy(pu->context, chan->macrocontext, sizeof(pu->context)-1);
+			else
+				strncpy(pu->context, chan->context, sizeof(pu->context)-1);
+			if (strlen(chan->macroexten))
+				strncpy(pu->exten, chan->macroexten, sizeof(pu->exten)-1);
+			else
+				strncpy(pu->exten, chan->exten, sizeof(pu->exten)-1);
+			if (chan->macropriority)
+				pu->priority = chan->macropriority;
+			else
+				pu->priority = chan->priority;
+			pu->next = parkinglot;
+			parkinglot = pu;
+			ast_mutex_unlock(&parking_lock);
+			/* Wake up the (presumably select()ing) thread */
+			pthread_kill(parking_thread, SIGURG);
+			if (option_verbose > 1) 
+				ast_verbose(VERBOSE_PREFIX_2 "Parked %s on %d\n", pu->chan->name, pu->parkingnum);
+
+			manager_event(EVENT_FLAG_CALL, "ParkedCall",
+                                "Exten: %d\r\n"
+                                "Channel: %s\r\n"
+                                "From: %s\r\n"
+                                "Timeout: %ld\r\n"
+                                "CallerID: %s\r\n"
+                                ,pu->parkingnum, pu->chan->name, peer->name
+                                ,(long)pu->start.tv_sec + (long)(pu->parkingtime/1000) - (long)time(NULL)
+                                ,(pu->chan->callerid ? pu->chan->callerid : "")
+                                );
+
+			if (peer)
+				ast_say_digits(peer, pu->parkingnum, "", peer->language);
+			return 0;
+		} else {
+			ast_log(LOG_WARNING, "No more parking spaces\n");
+			free(pu);
+			ast_mutex_unlock(&parking_lock);
+			return -1;
+		}
+	} else {
+		ast_log(LOG_WARNING, "Out of memory\n");
+		return -1;
+	}
+	return 0;
+}
+
+int ast_masq_park_call(struct ast_channel *rchan, struct ast_channel *peer, int timeout, int *extout)
+{
+	struct ast_channel *chan;
+	struct ast_frame *f;
+	/* Make a new, fake channel that we'll use to masquerade in the real one */
+	chan = ast_channel_alloc(0);
+	if (chan) {
+		/* Let us keep track of the channel name */
+		snprintf(chan->name, sizeof (chan->name), "Parked/%s",rchan->name);
+		/* Make formats okay */
+		chan->readformat = rchan->readformat;
+		chan->writeformat = rchan->writeformat;
+		ast_channel_masquerade(chan, rchan);
+		/* Setup the extensions and such */
+		strncpy(chan->context, rchan->context, sizeof(chan->context) - 1);
+		strncpy(chan->exten, rchan->exten, sizeof(chan->exten) - 1);
+		chan->priority = rchan->priority;
+		/* Make the masq execute */
+		f = ast_read(chan);
+		if (f)
+			ast_frfree(f);
+		ast_park_call(chan, peer, timeout, extout);
+	} else {
+		ast_log(LOG_WARNING, "Unable to create parked channel\n");
+		return -1;
+	}
+	return 0;
+}
+
+int ast_bridge_call(struct ast_channel *chan,struct ast_channel *peer,struct ast_bridge_config *config)
+{
+	/* Copy voice back and forth between the two channels.  Give the peer
+	   the ability to transfer calls with '#<extension' syntax. */
+	int len;
+	struct ast_frame *f;
+	struct ast_channel *who;
+	char newext[256], *ptr;
+	int res;
+	struct ast_option_header *aoh;
+	struct ast_channel *transferer;
+	struct ast_channel *transferee;
+	char *transferer_real_context;
+	int allowdisconnect,allowredirect_in,allowredirect_out;
+
+	allowdisconnect = config->allowdisconnect;
+	allowredirect_in = config->allowredirect_in;
+	allowredirect_out = config->allowredirect_out;
+
+	/* Answer if need be */
+	if (ast_answer(chan))
+		return -1;
+	peer->appl = "Bridged Call";
+	peer->data = chan->name;
+	/* copy the userfield from the B-leg to A-leg if applicable */
+	if (chan->cdr && peer->cdr && strlen(peer->cdr->userfield)) {
+		char tmp[256];
+		if (strlen(chan->cdr->userfield)) {
+			snprintf(tmp, sizeof(tmp), "%s;%s",chan->cdr->userfield, peer->cdr->userfield);
+			ast_cdr_appenduserfield(chan, tmp);
+		} else
+			ast_cdr_setuserfield(chan, peer->cdr->userfield);
+		/* free the peer's cdr without ast_cdr_free complaining */
+		free(peer->cdr);
+		peer->cdr = NULL;
+	}
+	for (;;) {
+	  res = ast_channel_bridge(chan,peer,config,&f, &who);
+		if (res < 0) {
+			ast_log(LOG_WARNING, "Bridge failed on channels %s and %s\n", chan->name, peer->name);
+			return -1;
+		}
+		
+		if (!f || ((f->frametype == AST_FRAME_CONTROL) && ((f->subclass == AST_CONTROL_HANGUP) || (f->subclass == AST_CONTROL_BUSY) || 
+			(f->subclass == AST_CONTROL_CONGESTION)))) {
+				res = -1;
+				break;
+		}
+		if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_RINGING)) {
+			if (who == chan)
+				ast_indicate(peer, AST_CONTROL_RINGING);
+			else
+				ast_indicate(chan, AST_CONTROL_RINGING);
+		}
+		if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == -1)) {
+			if (who == chan)
+				ast_indicate(peer, -1);
+			else
+				ast_indicate(chan, -1);
+		}
+		if ((f->frametype == AST_FRAME_CONTROL) && (f->subclass == AST_CONTROL_OPTION)) {
+			aoh = f->data;
+			/* Forward option Requests */
+			if (aoh && (aoh->flag == AST_OPTION_FLAG_REQUEST)) {
+				if (who == chan)
+					ast_channel_setoption(peer, ntohs(aoh->option), aoh->data, f->datalen - sizeof(struct ast_option_header), 0);
+				else
+					ast_channel_setoption(chan, ntohs(aoh->option), aoh->data, f->datalen - sizeof(struct ast_option_header), 0);
+			}
+		}
+            if (f && (f->frametype == AST_FRAME_DTMF) && (who == chan) && allowdisconnect &&
+		     (f->subclass == '*')) {
+		if (option_verbose > 3)
+			ast_verbose(VERBOSE_PREFIX_3 "User hit %c to disconnect call.\n", f->subclass);
+			res = -1;
+			break;
+
+			}
+
+		if ((f->frametype == AST_FRAME_DTMF) &&
+			((allowredirect_in && who == peer) || (allowredirect_out && who == chan)) &&
+			(f->subclass == '#')) {
+				if(allowredirect_in &&  who == peer) {
+					transferer = peer;
+					transferee = chan;
+				}
+				else {
+					transferer = chan;
+					transferee = peer;
+				}
+
+				/* Use the non-macro context to transfer the call */
+				if(strlen(transferer->macrocontext))
+					transferer_real_context=transferer->macrocontext;
+				else
+					transferer_real_context=transferer->context;
+
+				/* Start autoservice on chan while we talk
+				   to the originator */
+				ast_autoservice_start(transferee);
+				ast_moh_start(transferee, NULL);
+
+				memset(newext, 0, sizeof(newext));
+				ptr = newext;
+
+					/* Transfer */
+				if ((res=ast_streamfile(transferer, "pbx-transfer", transferer->language))) {
+					ast_moh_stop(transferee);
+					ast_autoservice_stop(transferee);
+					break;
+				}
+				if ((res=ast_waitstream(transferer, AST_DIGIT_ANY)) < 0) {
+					ast_moh_stop(transferee);
+					ast_autoservice_stop(transferee);
+					break;
+				}
+				ast_stopstream(transferer);
+				if (res > 0) {
+					/* If they've typed a digit already, handle it */
+					newext[0] = res;
+					ptr++;
+					len --;
+				}
+				res = 0;
+				while(strlen(newext) < sizeof(newext) - 1) {
+					res = ast_waitfordigit(transferer, 3000);
+					if (res < 1) 
+						break;
+					if (res == '#')
+						break;
+					*(ptr++) = res;
+					if (!ast_matchmore_extension(transferer, transferer_real_context
+								, newext, 1, transferer->callerid)) {
+						break;
+					}
+				}
+
+				if (res < 0) {
+					ast_moh_stop(transferee);
+					ast_autoservice_stop(transferee);
+					break;
+				}
+				if (!strcmp(newext, ast_parking_ext())) {
+					ast_moh_stop(transferee);
+
+					if (ast_autoservice_stop(transferee))
+						res = -1;
+					else if (!ast_park_call(transferee, transferer, 0, NULL)) {
+						/* We return non-zero, but tell the PBX not to hang the channel when
+						   the thread dies -- We have to be careful now though.  We are responsible for 
+						   hanging up the channel, else it will never be hung up! */
+
+						if(transferer==peer)
+							res=AST_PBX_KEEPALIVE;
+						else
+							res=AST_PBX_NO_HANGUP_PEER;
+						break;
+					} else {
+						ast_log(LOG_WARNING, "Unable to park call %s\n", transferee->name);
+					}
+					/* XXX Maybe we should have another message here instead of invalid extension XXX */
+				} else if (ast_exists_extension(transferee, transferer_real_context, newext, 1, transferer->callerid)) {
+					ast_moh_stop(transferee);
+					res=ast_autoservice_stop(transferee);
+					if (!transferee->pbx) {
+						/* Doh!  Use our handy async_goto funcitons */
+						if (option_verbose > 2) 
+							ast_verbose(VERBOSE_PREFIX_3 "Transferring %s to '%s' (context %s) priority 1\n"
+								,transferee->name, newext, transferer_real_context);
+						if (ast_async_goto(transferee, transferer_real_context, newext, 1))
+							ast_log(LOG_WARNING, "Async goto fialed :(\n");
+						res = -1;
+					} else {
+						/* Set the channel's new extension, since it exists, using transferer context */
+						strncpy(transferee->exten, newext, sizeof(transferee->exten)-1);
+						strncpy(transferee->context, transferer_real_context, sizeof(transferee->context)-1);
+						transferee->priority = 0;
+						ast_frfree(f);
+					}
+					break;
+				} else {
+					if (option_verbose > 2)	
+						ast_verbose(VERBOSE_PREFIX_3 "Unable to find extension '%s' in context '%s'\n", newext, transferer_real_context);
+				}
+				res = ast_streamfile(transferer, "pbx-invalid", transferee->language);
+				if (res) {
+					ast_moh_stop(transferee);
+					ast_autoservice_stop(transferee);
+					break;
+				}
+				res = ast_waitstream(transferer, AST_DIGIT_ANY);
+				ast_stopstream(transferer);
+				ast_moh_stop(transferee);
+				res = ast_autoservice_stop(transferee);
+				if (res) {
+					if (option_verbose > 1)
+						ast_verbose(VERBOSE_PREFIX_2 "Hungup during autoservice stop on '%s'\n", transferee->name);
+				}
+			} else {
+            if (f && (f->frametype == AST_FRAME_DTMF)) {
+                  if (who == peer)
+                        ast_write(chan, f);
+                  else
+                        ast_write(peer, f);
+            }            
+#if 1
+				ast_log(LOG_DEBUG, "Read from %s (%d,%d)\n", who->name, f->frametype, f->subclass);
+#endif
+			}
+         if (f)
+               ast_frfree(f);
+	}
+	return res;
+}
+
+static void *do_parking_thread(void *ignore)
+{
+	int ms, tms, max;
+	struct parkeduser *pu, *pl, *pt = NULL;
+	struct timeval tv;
+	struct ast_frame *f;
+	int x;
+	fd_set rfds, efds;
+	fd_set nrfds, nefds;
+	FD_ZERO(&rfds);
+	FD_ZERO(&efds);
+	for (;;) {
+		ms = -1;
+		max = -1;
+		ast_mutex_lock(&parking_lock);
+		pl = NULL;
+		pu = parkinglot;
+		gettimeofday(&tv, NULL);
+		FD_ZERO(&nrfds);
+		FD_ZERO(&nefds);
+		while(pu) {
+			tms = (tv.tv_sec - pu->start.tv_sec) * 1000 + (tv.tv_usec - pu->start.tv_usec) / 1000;
+			if (tms > pu->parkingtime) {
+				/* They've been waiting too long, send them back to where they came.  Theoretically they
+				   should have their original extensions and such, but we copy to be on the safe side */
+				strncpy(pu->chan->exten, pu->exten, sizeof(pu->chan->exten)-1);
+				strncpy(pu->chan->context, pu->context, sizeof(pu->chan->context)-1);
+				pu->chan->priority = pu->priority;
+				/* Stop music on hold */
+				ast_moh_stop(pu->chan);
+				/* Start up the PBX, or hang them up */
+				if (ast_pbx_start(pu->chan))  {
+					ast_log(LOG_WARNING, "Unable to restart the PBX for user on '%s', hanging them up...\n", pu->chan->name);
+					ast_hangup(pu->chan);
+				}
+				/* And take them out of the parking lot */
+				if (pl) 
+					pl->next = pu->next;
+				else
+					parkinglot = pu->next;
+				pt = pu;
+				pu = pu->next;
+				free(pt);
+			} else {
+				for (x=0;x<AST_MAX_FDS;x++) {
+					if ((pu->chan->fds[x] > -1) && (FD_ISSET(pu->chan->fds[x], &rfds) || FD_ISSET(pu->chan->fds[x], &efds))) {
+						if (FD_ISSET(pu->chan->fds[x], &efds))
+							pu->chan->exception = 1;
+						pu->chan->fdno = x;
+						/* See if they need servicing */
+						f = ast_read(pu->chan);
+						if (!f || ((f->frametype == AST_FRAME_CONTROL) && (f->subclass ==  AST_CONTROL_HANGUP))) {
+							/* There's a problem, hang them up*/
+							if (option_verbose > 1) 
+								ast_verbose(VERBOSE_PREFIX_2 "%s got tired of being parked\n", pu->chan->name);
+							ast_hangup(pu->chan);
+							/* And take them out of the parking lot */
+							if (pl) 
+								pl->next = pu->next;
+							else
+								parkinglot = pu->next;
+							pt = pu;
+							pu = pu->next;
+							free(pt);
+							break;
+						} else {
+							/* XXX Maybe we could do something with packets, like dial "0" for operator or something XXX */
+							ast_frfree(f);
+							goto std;	/* XXX Ick: jumping into an else statement??? XXX */
+						}
+					}
+				}
+				if (x >= AST_MAX_FDS) {
+std:					for (x=0;x<AST_MAX_FDS;x++) {
+						/* Keep this one for next one */
+						if (pu->chan->fds[x] > -1) {
+							FD_SET(pu->chan->fds[x], &nrfds);
+							FD_SET(pu->chan->fds[x], &nefds);
+							if (pu->chan->fds[x] > max)
+								max = pu->chan->fds[x];
+						}
+					}
+					/* Keep track of our longest wait */
+					if ((tms < ms) || (ms < 0))
+						ms = tms;
+					pl = pu;
+					pu = pu->next;
+				}
+			}
+		}
+		ast_mutex_unlock(&parking_lock);
+		rfds = nrfds;
+		efds = nefds;
+		tv.tv_sec = ms / 1000;
+		tv.tv_usec = (ms % 1000) * 1000;
+		/* Wait for something to happen */
+		ast_select(max + 1, &rfds, NULL, &efds, (ms > -1) ? &tv : NULL);
+		pthread_testcancel();
+	}
+	return NULL;	/* Never reached */
+}
+
+static int park_exec(struct ast_channel *chan, void *data)
+{
+	int res=0;
+	struct localuser *u;
+	struct ast_channel *peer=NULL;
+	struct parkeduser *pu, *pl=NULL;
+	int park;
+	int dres;
+	struct ast_bridge_config config;
+
+	if (!data) {
+		ast_log(LOG_WARNING, "Park requires an argument (extension number)\n");
+		return -1;
+	}
+	LOCAL_USER_ADD(u);
+	park = atoi((char *)data);
+	ast_mutex_lock(&parking_lock);
+	pu = parkinglot;
+	while(pu) {
+		if (pu->parkingnum == park) {
+			if (pl)
+				pl->next = pu->next;
+			else
+				parkinglot = pu->next;
+			break;
+		}
+		pl = pu;
+		pu = pu->next;
+	}
+	ast_mutex_unlock(&parking_lock);
+	if (pu) {
+		peer = pu->chan;
+		free(pu);
+	}
+	/* JK02: it helps to answer the channel if not already up */
+	if (chan->_state != AST_STATE_UP) {
+		ast_answer(chan);
+	}
+
+	if (peer) {
+		ast_moh_stop(peer);
+		res = ast_channel_make_compatible(chan, peer);
+		if (res < 0) {
+			ast_log(LOG_WARNING, "Could not make channels %s and %s compatible for bridge\n", chan->name, peer->name);
+			ast_hangup(peer);
+			return -1;
+		}
+		/* This runs sorta backwards, since we give the incoming channel control, as if it
+		   were the person called. */
+		if (option_verbose > 2) 
+			ast_verbose(VERBOSE_PREFIX_3 "Channel %s connected to parked call %d\n", chan->name, park);
+
+		memset(&config,0,sizeof(struct ast_bridge_config));
+		config.allowredirect_in = 1;
+		config.allowredirect_out = 1;
+		config.allowdisconnect = 0;
+		config.timelimit = 0;
+		config.play_warning = 0;
+		config.warning_freq = 0;
+		config.warning_sound=NULL;
+		res = ast_bridge_call(chan,peer,&config);
+
+		/* Simulate the PBX hanging up */
+		if (res != AST_PBX_NO_HANGUP_PEER)
+			ast_hangup(peer);
+		return res;
+	} else {
+		/* XXX Play a message XXX */
+	  dres = ast_streamfile(chan, "pbx-invalidpark", chan->language);
+	  if (!dres)
+	    dres = ast_waitstream(chan, "");
+	  else {
+	    ast_log(LOG_WARNING, "ast_streamfile of %s failed on %s\n", "pbx-invalidpark", chan->name);
+	    dres = 0;
+	  }
+		if (option_verbose > 2) 
+			ast_verbose(VERBOSE_PREFIX_3 "Channel %s tried to talk to non-existant parked call %d\n", chan->name, park);
+		res = -1;
+	}
+	LOCAL_USER_REMOVE(u);
+	return res;
+}
+
+static int handle_parkedcalls(int fd, int argc, char *argv[])
+{
+	struct parkeduser *cur;
+
+	ast_cli(fd, "%4s %25s (%-15s %-12s %-4s) %-6s \n", "Num", "Channel"
+		, "Context", "Extension", "Pri", "Timeout");
+
+	ast_mutex_lock(&parking_lock);
+
+	cur=parkinglot;
+	while(cur) {
+		ast_cli(fd, "%4d %25s (%-15s %-12s %-4d) %6lds\n"
+			,cur->parkingnum, cur->chan->name, cur->context, cur->exten
+			,cur->priority, cur->start.tv_sec + (cur->parkingtime/1000) - time(NULL));
+
+		cur = cur->next;
+	}
+
+	ast_mutex_unlock(&parking_lock);
+
+	return RESULT_SUCCESS;
+}
+
+static char showparked_help[] =
+"Usage: show parkedcalls\n"
+"       Lists currently parked calls.\n";
+
+static struct ast_cli_entry showparked =
+{ { "show", "parkedcalls", NULL }, handle_parkedcalls, "Lists parked calls", showparked_help };
+/* Dump lot status */
+static int manager_parking_status( struct mansession *s, struct message *m )
+{
+	struct parkeduser *cur;
+	char *id = astman_get_header(m,"ActionID");
+	char idText[256] = "";
+
+	if (id && !ast_strlen_zero(id))
+		snprintf(idText,256,"ActionID: %s\r\n",id);
+
+	astman_send_ack(s, m, "Parked calls will follow");
+
+        ast_mutex_lock(&parking_lock);
+
+        cur=parkinglot;
+        while(cur) {
+                ast_cli(s->fd, "Event: ParkedCall\r\n"
+			"Exten: %d\r\n"
+			"Channel: %s\r\n"
+			"Timeout: %ld\r\n"
+			"CallerID: %s\r\n"
+			"%s"
+			"\r\n"
+                        ,cur->parkingnum, cur->chan->name
+                        ,(long)cur->start.tv_sec + (long)(cur->parkingtime/1000) - (long)time(NULL)
+			,(cur->chan->callerid ? cur->chan->callerid : "")
+			,idText);
+
+                cur = cur->next;
+        }
+
+	ast_cli(s->fd,
+	"Event: ParkedCallsComplete\r\n"
+	"%s"
+	"\r\n",idText);
+
+        ast_mutex_unlock(&parking_lock);
+
+        return RESULT_SUCCESS;
+}
+
+
+
+int load_module(void)
+{
+	int res;
+	int x;
+	int start, end;
+	struct ast_context *con;
+	char exten[AST_MAX_EXTENSION];
+	struct ast_config *cfg;
+	struct ast_variable *var;
+
+	ast_cli_register(&showparked);
+
+	cfg = ast_load("features.conf");
+	if (!cfg) {
+		cfg = ast_load("parking.conf");
+		if (cfg)
+			ast_log(LOG_NOTICE, "parking.conf is deprecated in favor of 'features.conf'.  Please rename it.\n");
+	}
+	if (cfg) {
+		var = ast_variable_browse(cfg, "general");
+		while(var) {
+			if (!strcasecmp(var->name, "parkext")) {
+				strncpy(parking_ext, var->value, sizeof(parking_ext) - 1);
+			} else if (!strcasecmp(var->name, "context")) {
+				strncpy(parking_con, var->value, sizeof(parking_con) - 1);
+			} else if (!strcasecmp(var->name, "parkingtime")) {
+				if ((sscanf(var->value, "%d", &parkingtime) != 1) || (parkingtime < 1)) {
+					ast_log(LOG_WARNING, "%s is not a valid parkingtime\n", var->value);
+					parkingtime = DEFAULT_PARK_TIME;
+				} else
+					parkingtime = parkingtime * 1000;
+			} else if (!strcasecmp(var->name, "parkpos")) {
+				if (sscanf(var->value, "%i-%i", &start, &end) != 2) {
+					ast_log(LOG_WARNING, "Format for parking positions is a-b, where a and b are numbers at line %d of parking.conf\n", var->lineno);
+				} else {
+					parking_start = start;
+					parking_stop = end;
+				}
+			}
+			var = var->next;
+		}
+		ast_destroy(cfg);
+	}
+	con = ast_context_find(parking_con);
+	if (!con) {
+		con = ast_context_create(NULL,parking_con, registrar);
+		if (!con) {
+			ast_log(LOG_ERROR, "Parking context '%s' does not exist and unable to create\n", parking_con);
+			return -1;
+		}
+	}
+	for(x=parking_start; x<=parking_stop;x++) {
+		snprintf(exten, sizeof(exten), "%d", x);
+		ast_add_extension2(con, 1, exten, 1, NULL, parkedcall, strdup(exten), free, registrar);
+	}
+	pthread_create(&parking_thread, NULL, do_parking_thread, NULL);
+	res = ast_register_application(parkedcall, park_exec, synopsis, descrip);
+	if (!res) {
+		ast_manager_register( "ParkedCalls", 0, manager_parking_status, "List parked calls" );
+	}
+	return res;
+}
+
+int ast_pickup_call(struct ast_channel *chan)
+{
+	struct ast_channel *cur;
+	int res = -1;
+	cur = ast_channel_walk_locked(NULL);
+	while(cur) {
+		if (!cur->pbx && 
+			(cur != chan) &&
+			(chan->pickupgroup & cur->callgroup) &&
+			((cur->_state == AST_STATE_RINGING) ||
+			 (cur->_state == AST_STATE_RING))) {
+			 	break;
+		}
+		ast_mutex_unlock(&cur->lock);
+		cur = ast_channel_walk_locked(cur);
+	}
+	if (cur) {
+		ast_log(LOG_DEBUG, "Call pickup on chan '%s' by '%s'\n",cur->name, chan->name);
+		res = ast_answer(chan);
+		if (res)
+			ast_log(LOG_WARNING, "Unable to answer '%s'\n", chan->name);
+		res = ast_queue_control(chan, AST_CONTROL_ANSWER);
+		if (res)
+			ast_log(LOG_WARNING, "Unable to queue answer on '%s'\n", chan->name);
+		res = ast_channel_masquerade(cur, chan);
+		if (res)
+			ast_log(LOG_WARNING, "Unable to masquerade '%s' into '%s'\n", chan->name, cur->name);		/* Done */
+		ast_mutex_unlock(&cur->lock);
+	} else	{
+		ast_log(LOG_DEBUG, "No call pickup possible...\n");
+	}
+	return res;
+}
+
+int unload_module(void)
+{
+	STANDARD_HANGUP_LOCALUSERS;
+
+	ast_manager_unregister( "ParkedCalls" );
+	ast_cli_unregister(&showparked);
+
+	return ast_unregister_application(parkedcall);
+}
+
+char *description(void)
+{
+	return "Call Parking Resource";
+}
+
+int usecount(void)
+{
+	/* Never allow parking to be unloaded because it will
+	   unresolve needed symbols in the dialer */
+#if 0
+	int res;
+	STANDARD_USECOUNT(res);
+	return res;
+#else
+	return 1;
+#endif
+}
+
+char *key()
+{
+	return ASTERISK_GPL_KEY;
+}