jack: duplicate jack_get_ports() return values

JACK documentation states: "The caller is responsible for calling free(3) any non-NULL returned value." This does not seem to include the array elements. Duplicate them after jack_get_ports(), and free only the array. Convert JackData.output_ports to non-const.

jack: duplicate jack_get_ports() return values
1fe12933 · Max Kellermann · 38fb8a01 · 1fe12933
Commit 1fe12933 authored Jan 02, 2009 by Max Kellermann
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Showing with 4 additions and 3 deletions

jack_plugin.c src/output/jack_plugin.c +4 -3

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--- a/src/output/jack_plugin.c
+++ b/src/output/jack_plugin.c
@@ -35,7 +35,7 @@ struct jack_data {

 	/* configuration */
 	char *name;
-	const char *output_ports[2];
+	char *output_ports[2];
 	int ringbuffer_size;

 	/* for srate() only */
@@ -299,8 +299,9 @@ mpd_jack_connect(struct jack_data *jd, struct audio_format *audio_format)
 	if (!jd->output_ports[1] &&
 	    (jports = jack_get_ports(jd->client, NULL, NULL,
 				     JackPortIsPhysical | JackPortIsInput))) {
-		jd->output_ports[0] = jports[0];
-		jd->output_ports[1] = jports[1] ? jports[1] : jports[0];
+		jd->output_ports[0] = g_strdup(jports[0]);
+		jd->output_ports[1] = g_strdup(jports[1] != NULL
+					       ? jports[1] : jports[0]);
 		g_debug("output_ports: %s %s",
 		      jd->output_ports[0], jd->output_ports[1]);
 		free(jports);