Added metadata string to call struct.

This will follow the call around until we destroy the call, at which point the
metadata string will be freed.

daemon/call.c

@@ -2219,6 +2219,9 @@ void call_destroy(struct call *c) {
 		c->recording_pcaps = g_slist_delete_link(c->recording_pcaps, c->recording_pcaps);
 	}
 
+	// TODO - here is where we write out metadata for IPC communication
+	free(c->metadata);
+
 	rwlock_unlock_w(&c->master_lock);
 }
 
@@ -2857,7 +2860,7 @@ out:
 void setup_recording_files(struct call *call, struct call_monologue *monologue) {
 	if (call->record_call
 	    && monologue->recording_pd == NULL && monologue->recording_pdumper == NULL) {
-    char rec_path_prefix[16];
+		char rec_path_prefix[16];
 		char recording_path[21];
 		/*
 		 *

daemon/call.h

@@ -147,7 +147,7 @@ enum call_type {
 #define PS_FLAG_CONFIRMED			0x00200000
 #define PS_FLAG_KERNELIZED			0x00400000
 #define PS_FLAG_NO_KERNEL_SUPPORT		0x00800000
-#define PS_FLAG_FORCE_DAEMON_MODE				0x01000000
+#define PS_FLAG_FORCE_DAEMON_MODE		0x01000000
 #define PS_FLAG_FINGERPRINT_VERIFIED		0x02000000
 #define PS_FLAG_STRICT_SOURCE			SHARED_FLAG_STRICT_SOURCE
 #define PS_FLAG_MEDIA_HANDOVER			SHARED_FLAG_MEDIA_HANDOVER
@@ -399,8 +399,8 @@ struct call_monologue {
 	GHashTable		*other_tags;
 	struct call_monologue	*active_dialogue;
 	GQueue			medias;
-	pcap_t *recording_pd;
-	pcap_dumper_t *recording_pdumper;
+	pcap_t			*recording_pd;
+	pcap_dumper_t		*recording_pdumper;
 };
 
 struct call {
@@ -436,6 +436,7 @@ struct call {
 
 	unsigned int		redis_hosted_db;
 	unsigned int		foreign_call; // created_via_redis_notify call
+	str			*metadata;
 };
 
 struct callmaster_config {

daemon/call_interfaces.c

@@ -647,7 +647,7 @@ static const char *call_offer_answer_ng(bencode_item_t *input, struct callmaster
 		bencode_item_t *output, enum call_opmode opmode, const char* addr,
 		const endpoint_t *sin)
 {
-	str sdp, fromtag, totag = STR_NULL, callid, viabranch, recordcall = STR_NULL;
+	str sdp, fromtag, totag = STR_NULL, callid, viabranch, recordcall = STR_NULL, metadata = STR_NULL;
 	char *errstr;
 	GQueue parsed = G_QUEUE_INIT;
 	GQueue streams = G_QUEUE_INIT;
@@ -683,6 +683,10 @@ static const char *call_offer_answer_ng(bencode_item_t *input, struct callmaster
 		goto out;
 
 	call = call_get_opmode(&callid, m, opmode);
+
+	bencode_dictionary_get_str(input, "metadata", &metadata);
+	call->metadata = str_dup(&metadata);
+
 	errstr = "Unknown call-id";
 	if (!call)
 		goto out;

daemon/media_socket.c

@@ -1407,7 +1407,7 @@ static void stream_pcap_dump(pcap_dumper_t *pdumper, str *s) {
 	// This must be the same value we use in `pcap_open_dead`
 	header.len = s->len + 28;
 
-  // Copy all the headers and payload into a new string
+	// Copy all the headers and payload into a new string
 	unsigned char pkt_s[*ip_total_length];
 	memcpy(pkt_s, ip_header, 20);
 	memcpy(pkt_s + 20, udp_header, 8);