playlist: moved "repeat" and "random" value checks to command.c

Client's input values should be validated by the command
implementation, and the core libraries shouldn't talk to the client
directly if possible.  Thus, setPlaylistRepeatStatus() and
setPlaylistRandomStatus() don't get the file descriptor, and cannot
fail (return void).

src/command.c

@@ -773,7 +773,15 @@ static int handleRepeat(int fd, mpd_unused int *permission,
 
 	if (check_int(fd, &status, argv[1], need_integer) < 0)
 		return -1;
-	return setPlaylistRepeatStatus(fd, status);
+
+	if (status != 0 && status != 1) {
+		commandError(fd, ACK_ERROR_ARG,
+			     "\"%i\" is not 0 or 1", status);
+		return -1;
+	}
+
+	setPlaylistRepeatStatus(status);
+	return 0;
 }
 
 static int handleRandom(int fd, mpd_unused int *permission,
@@ -783,7 +791,15 @@ static int handleRandom(int fd, mpd_unused int *permission,
 
 	if (check_int(fd, &status, argv[1], need_integer) < 0)
 		return -1;
-	return setPlaylistRandomStatus(fd, status);
+
+	if (status != 0 && status != 1) {
+		commandError(fd, ACK_ERROR_ARG,
+			     "\"%i\" is not 0 or 1", status);
+		return -1;
+	}
+
+	setPlaylistRandomStatus(status);
+	return 0;
 }
 
 static int handleStats(int fd, mpd_unused int *permission,

src/playlist.c

@@ -327,9 +327,9 @@ void readPlaylistState(FILE *fp)
 			if (strcmp
 			    (&(buffer[strlen(PLAYLIST_STATE_FILE_REPEAT)]),
 			     "1") == 0) {
-				setPlaylistRepeatStatus(STDERR_FILENO, 1);
+				setPlaylistRepeatStatus(1);
 			} else
-				setPlaylistRepeatStatus(STDERR_FILENO, 0);
+				setPlaylistRepeatStatus(0);
 		} else
 		    if (strncmp
 			(buffer, PLAYLIST_STATE_FILE_CROSSFADE,
@@ -348,9 +348,9 @@ void readPlaylistState(FILE *fp)
 			     (buffer
 			      [strlen(PLAYLIST_STATE_FILE_RANDOM)]),
 			     "1") == 0) {
-				setPlaylistRandomStatus(STDERR_FILENO, 1);
+				setPlaylistRandomStatus(1);
 			} else
-				setPlaylistRandomStatus(STDERR_FILENO, 0);
+				setPlaylistRandomStatus(0);
 		} else if (strncmp(buffer, PLAYLIST_STATE_FILE_CURRENT,
 				   strlen(PLAYLIST_STATE_FILE_CURRENT))
 			   == 0) {
@@ -1012,21 +1012,14 @@ int getPlaylistRandomStatus(void)
 	return playlist.random;
 }
 
-int setPlaylistRepeatStatus(int fd, int status)
+void setPlaylistRepeatStatus(int status)
 {
-	if (status != 0 && status != 1) {
-		commandError(fd, ACK_ERROR_ARG, "\"%i\" is not 0 or 1", status);
-		return -1;
-	}
-
 	if (playlist_state == PLAYLIST_STATE_PLAY) {
 		if (playlist.repeat && !status && playlist.queued == 0)
 			clearPlayerQueue();
 	}
 
 	playlist.repeat = status;
-
-	return 0;
 }
 
 int moveSongInPlaylist(int fd, int from, int to)
@@ -1183,15 +1176,10 @@ static void randomizeOrder(int start, int end)
 	}
 }
 
-int setPlaylistRandomStatus(int fd, int status)
+void setPlaylistRandomStatus(int status)
 {
 	int statusWas = playlist.random;
 
-	if (status != 0 && status != 1) {
-		commandError(fd, ACK_ERROR_ARG, "\"%i\" is not 0 or 1", status);
-		return -1;
-	}
-
 	playlist.random = status;
 
 	if (status != statusWas) {
@@ -1209,8 +1197,6 @@ int setPlaylistRandomStatus(int fd, int status)
 		} else
 			orderPlaylist();
 	}
-
-	return 0;
 }
 
 void previousSongInPlaylist(void)

src/playlist.h

@@ -105,11 +105,11 @@ int loadPlaylist(int fd, const char *utf8file);
 
 int getPlaylistRepeatStatus(void);
 
-int setPlaylistRepeatStatus(int fd, int status);
+void setPlaylistRepeatStatus(int status);
 
 int getPlaylistRandomStatus(void);
 
-int setPlaylistRandomStatus(int fd, int status);
+void setPlaylistRandomStatus(int status);
 
 int getPlaylistCurrentSong(void);