MT#55283 switch o= strings to `str`

So we can attach other attributes to the strings

Change-Id: I3e6090c8557879efb40ddeb6635ed4b10e742112

daemon/call.c

@@ -2672,14 +2672,14 @@ static void __call_monologue_init_from_flags(struct call_monologue *ml, struct c
 
 		/* sdp session name */
 		if (flags->session_sdp_name.len &&
-			(!ml->sdp_session_name || /* if not set yet */
+			(!ml->sdp_session_name.len || /* if not set yet */
-			(ml->sdp_session_name && !flags->replace_sess_name))) /* replace_sess_name = do not replace if possible*/
+			(ml->sdp_session_name.len && !flags->replace_sess_name))) /* replace_sess_name = do not replace if possible*/
 		{
-			ml->sdp_session_name = call_strdup_str(&flags->session_sdp_name);
+			ml->sdp_session_name = call_str_cpy(&flags->session_sdp_name);
 		}
 		/* sdp session timing */
 		if (flags->session_timing.len)
-			ml->sdp_session_timing = call_strdup_str(&flags->session_timing);
+			ml->sdp_session_timing = call_str_cpy(&flags->session_timing);
 		/* sdp bandwidth per session level
 		 * 0 value is supported (e.g. b=RR:0 and b=RS:0), to be able to disable rtcp */
 		ml->sdp_session_bandwidth.as = flags->session_bandwidth.as;
@@ -2689,7 +2689,7 @@ static void __call_monologue_init_from_flags(struct call_monologue *ml, struct c
 		ml->sdp_session_bandwidth.tias = flags->session_bandwidth.tias;
 		/* sdp session group */
 		if (flags->session_group.len)
-			ml->sdp_session_group = call_strdup_str(&flags->session_group);
+			ml->sdp_session_group = call_str_cpy(&flags->session_group);
 	}
 
 	// reset offer ipv4/ipv6/mixed media stats

daemon/redis.c

@@ -1490,10 +1490,10 @@ static int redis_tags(call_t *c, struct redis_list *tags, parser_arg arg) {
 
 		/* s= */
 		if (!redis_hash_get_str(&s, rh, "sdp_session_name"))
-			ml->sdp_session_name = call_strdup_str(&s);
+			ml->sdp_session_name = call_str_cpy(&s);
 		/* t= */
 		if (!redis_hash_get_str(&s, rh, "sdp_session_timing"))
-			ml->sdp_session_timing = call_strdup_str(&s);
+			ml->sdp_session_timing = call_str_cpy(&s);
 		/* o= */
 		if (!redis_hash_get_str(&s, rh, "sdp_orig_parsed")) {
 			ml->session_sdp_orig = g_slice_alloc0(sizeof(*ml->session_sdp_orig));
@@ -2553,8 +2553,8 @@ static str redis_encode_json(ng_parser_ctx_t *ctx, call_t *c, void **to_free) {
 				if (ml->metadata.s)
 					JSON_SET_SIMPLE_STR("metadata", &ml->metadata);
 
-				JSON_SET_SIMPLE_CSTR("sdp_session_name", ml->sdp_session_name ? ml->sdp_session_name : "");
+				JSON_SET_SIMPLE_STR("sdp_session_name", &ml->sdp_session_name);
-				JSON_SET_SIMPLE_CSTR("sdp_session_timing", ml->sdp_session_timing ? ml->sdp_session_timing : "");
+				JSON_SET_SIMPLE_STR("sdp_session_timing", &ml->sdp_session_timing);
 
 				if (ml->session_sdp_orig) {
 					JSON_SET_SIMPLE_STR("sdp_orig_username", &ml->session_sdp_orig->username);

daemon/sdp.c

@@ -2761,10 +2761,11 @@ static void sdp_out_add_origin(GString *out, struct call_monologue *monologue,
 
 static void sdp_out_add_session_name(GString *out, struct call_monologue *monologue)
 {
+	g_string_append(out, "s=");
+
 	/* PUBLISH exceptionally doesn't include sdp session name from SDP.
 	 * The session name and other values should be copied only from a source SDP,
 	 * if that is also a media source. For a publish request that's not the case. */
-	const char * sdp_session_name = rtpe_config.software_id;
 
 	/* for the offer/answer model or subscribe don't use the given monologues SDP,
 	 * but try the one of the subscription, because the given monologue itself
@@ -2775,22 +2776,27 @@ static void sdp_out_add_session_name(GString *out, struct call_monologue *monolo
 		/* if a session name was empty in the s= attr of the coming message,
 		 * while processing this ml in `__call_monologue_init_from_flags()`,
 		 * then just keep it empty. */
-		sdp_session_name = (ms->monologue->sdp_session_name) ? : "";
+		if (ms->monologue->sdp_session_name.len)
+			g_string_append_len(out, ms->monologue->sdp_session_name.s, ms->monologue->sdp_session_name.len);
 	}
+	else
+		g_string_append(out, rtpe_config.software_id);
 
-	g_string_append_printf(out, "s=%s\r\n", sdp_session_name);
+	g_string_append(out, "\r\n");
 }
 
 static void sdp_out_add_timing(GString *out, struct call_monologue *monologue)
 {
-	const char * sdp_session_timing = "0 0"; /* default */
+	/* sdp timing per session level */
+	g_string_append(out, "t=");
 
 	struct media_subscription *ms = call_get_top_media_subscription(monologue);
-	if (ms && ms->monologue && ms->monologue->sdp_session_timing)
+	if (ms && ms->monologue && ms->monologue->sdp_session_timing.len)
-		sdp_session_timing = ms->monologue->sdp_session_timing;
+		g_string_append_len(out, ms->monologue->sdp_session_timing.s, ms->monologue->sdp_session_timing.len);
+	else
+		g_string_append(out, "0 0"); /* default */
 
-	/* sdp timing per session level */
+	g_string_append(out, "\r\n");
-	g_string_append_printf(out, "t=%s\r\n", sdp_session_timing);
 }
 
 static void sdp_out_add_other(GString *out, struct call_monologue *monologue,
@@ -2811,8 +2817,8 @@ static void sdp_out_add_other(GString *out, struct call_monologue *monologue,
 		append_attr_to_gstring(out, "ice-lite", NULL, flags, media->type_id);
 
 	/* group */
-	if (ms && ms->monologue && ms->monologue->sdp_session_group && flags->ice_option == ICE_FORCE_RELAY)
+	if (ms && ms->monologue && ms->monologue->sdp_session_group.len && flags->ice_option == ICE_FORCE_RELAY)
-		append_attr_to_gstring(out, "group", &STR(ms->monologue->sdp_session_group), flags, media->type_id);
+		append_attr_to_gstring(out, "group", &ms->monologue->sdp_session_group, flags, media->type_id);
 
 	/* carry other session level a= attributes to the outgoing SDP */
 	monologue->sdp_attr_print(out, monologue, flags);

include/call.h

@@ -595,9 +595,9 @@ struct call_monologue {
 	sdp_origin * session_sdp_orig;	/* actual origin belonging to this monologue */
 	sdp_origin * session_last_sdp_orig;	/* previously used origin by other other side */
 
-	char			*sdp_session_name;
+	str			sdp_session_name;
-	char			*sdp_session_timing;
+	str			sdp_session_timing;
-	char			*sdp_session_group;	/* a=group: e.g. BUNDLE */
+	str			sdp_session_group;	/* a=group: e.g. BUNDLE */
 	struct ssrc_hash	*ssrc_hash;
 	str			metadata;
 	struct janus_session	*janus_session;