From: Max Kellermann <max@duempel.org>
Date: Sat, 19 Jun 2010 11:05:02 +0000 (+0200)
Subject: screen_browser: check for error before adding song to playlist
X-Git-Tag: release-0.17~7
X-Git-Url: https://git.tokkee.org/?p=ncmpc.git;a=commitdiff_plain;h=2a400039ea3adeec43a927e606e5f6d78e012988

screen_browser: check for error before adding song to playlist

The function enqueue_and_play() may cause an assertion failure,
because it evaluates the filelist_entry object after
mpdclient_get_connection() call.  However, mpdclient_get_connection() may
indirectly invalidate the filelist_entry object, when it sees that the
connection has become invalid; it will return a NULL connection then.
This results in an assertion failure or a segmentation fault.
---

diff --git a/NEWS b/NEWS
index b93ea55..526570d 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,6 @@
 ncmpc 0.17 - not yet released
 * screen_queue: fix range selection check on "shuffle"
+* screen_browser: check for error before adding song to playlist
 * po: added Brazilian Portuguese translation
 
 
diff --git a/src/screen_browser.c b/src/screen_browser.c
index 45e11eb..04673f4 100644
--- a/src/screen_browser.c
+++ b/src/screen_browser.c
@@ -143,6 +143,9 @@ static bool
 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 {
 	struct mpd_connection *connection = mpdclient_get_connection(c);
+	if (connection == NULL)
+		return false;
+
 	const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 	int id;