release v0.18.14

That attribute was uninitialized before, which could crash
libavformat.

See Debian bug 760669

.gitignore

@@ -63,6 +63,7 @@ test/run_normalize
 test/tmp
 test/run_inotify
 test/test_queue_priority
+test/test_protocol
 test/run_ntp_server
 test/run_resolver
 test/run_tcp_connect

Makefile.am

@@ -1064,6 +1064,7 @@ C_TESTS = \
 	test/test_mixramp \
 	test/test_icy_parser \
 	test/test_pcm \
+	test/test_protocol \
 	test/test_queue_priority
 
 if ENABLE_ARCHIVE
@@ -1538,6 +1539,16 @@ test_test_archive_LDADD = \
 	$(GLIB_LIBS) \
 	$(CPPUNIT_LIBS)
 
+test_test_protocol_SOURCES = \
+	src/protocol/ArgParser.cxx \
+	test/test_protocol.cxx
+test_test_protocol_CPPFLAGS = $(AM_CPPFLAGS) $(CPPUNIT_CFLAGS) -DCPPUNIT_HAVE_RTTI=0
+test_test_protocol_CXXFLAGS = $(AM_CXXFLAGS) -Wno-error=deprecated-declarations
+test_test_protocol_LDADD = \
+	libsystem.a \
+	libutil.a \
+	$(CPPUNIT_LIBS)
+
 test_test_queue_priority_SOURCES = \
 	src/Queue.cxx \
 	test/test_queue_priority.cxx

NEWS

@@ -1,3 +1,11 @@
+ver 0.18.14 (2014/09/11)
+* protocol
+  - fix range parser bug on certain 32 bit architectures
+* decoder
+  - audiofile: fix crash after seeking
+  - ffmpeg: fix crash with ffmpeg/libav version 11
+  - fix assertion failure after seeking
+
 ver 0.18.13 (2014/08/31)
 * protocol
   - don't change song on "seekcur" in random mode

configure.ac

@@ -1,6 +1,6 @@
 AC_PREREQ(2.60)
 
-AC_INIT(mpd, 0.18.13, mpd-devel@musicpd.org)
+AC_INIT(mpd, 0.18.14, mpd-devel@musicpd.org)
 
 VERSION_MAJOR=0
 VERSION_MINOR=18

src/DecoderAPI.cxx

@@ -47,6 +47,7 @@ decoder_initialized(Decoder &decoder,
 
 	assert(dc.state == DecoderState::START);
 	assert(dc.pipe != nullptr);
+	assert(dc.pipe->IsEmpty());
 	assert(decoder.stream_tag == nullptr);
 	assert(decoder.decoder_tag == nullptr);
 	assert(!decoder.seeking);
@@ -405,6 +406,9 @@ decoder_data(Decoder &decoder,
 	    length == 0)
 		return cmd;
 
+	assert(!decoder.initial_seek_pending);
+	assert(!decoder.initial_seek_running);
+
 	/* send stream tags */
 
 	if (update_stream_tag(decoder, is)) {

src/DecoderInternal.cxx

@@ -83,6 +83,9 @@ void
 decoder_flush_chunk(Decoder &decoder)
 {
 	DecoderControl &dc = decoder.dc;
+	assert(!decoder.seeking);
+	assert(!decoder.initial_seek_running);
+	assert(!decoder.initial_seek_pending);
 
 	assert(decoder.chunk != nullptr);
 

src/DecoderThread.cxx

@@ -26,6 +26,7 @@
 #include "Song.hxx"
 #include "system/FatalError.hxx"
 #include "Mapper.hxx"
+#include "MusicPipe.hxx"
 #include "fs/Traits.hxx"
 #include "fs/AllocatedPath.hxx"
 #include "DecoderAPI.hxx"
@@ -418,9 +419,18 @@ decoder_task(void *arg)
 			dc.replay_gain_prev_db = dc.replay_gain_db;
 			dc.replay_gain_db = 0;
 
-			/* fall through */
+			decoder_run(dc);
+			break;
 
 		case DecoderCommand::SEEK:
+			/* this seek was too late, and the decoder had
+			   already finished; start a new decoder */
+
+			/* we need to clear the pipe here; usually the
+			   PlayerThread is responsible, but it is not
+			   aware that the decoder has finished */
+			dc.pipe->Clear(*dc.buffer);
+
 			decoder_run(dc);
 			break;
 

src/decoder/AudiofileDecoderPlugin.cxx

@@ -110,9 +110,9 @@ audiofile_file_seek(AFvirtualfile *vfile, AFfileoffset offset, int is_relative)
 
 	Error error;
 	if (is.LockSeek(offset, whence, error)) {
-		LogError(error, "Seek failed");
 		return is.GetOffset();
 	} else {
+		LogError(error, "Seek failed");
 		return -1;
 	}
 }

src/decoder/FfmpegDecoderPlugin.cxx

@@ -383,10 +383,23 @@ ffmpeg_probe(Decoder *decoder, InputStream &is)
 	nbytes -= PADDING;
 
 	AVProbeData avpd;
+
+	/* new versions of ffmpeg may add new attributes, and leaving
+	   them uninitialized may crash; hopefully, zero-initializing
+	   everything we don't know is ok */
+	memset(&avpd, 0, sizeof(avpd));
+
 	avpd.buf = buffer;
 	avpd.buf_size = nbytes;
 	avpd.filename = is.uri.c_str();
 
+#ifdef AVPROBE_SCORE_MIME
+	/* this attribute was added in libav/ffmpeg version 11, but
+	   unfortunately it's "uint8_t" instead of "char", and it's
+	   not "const" - wtf? */
+	avpd.mime_type = (uint8_t *)const_cast<char *>(is.GetMimeType());
+#endif
+
 	return av_probe_input_format(&avpd, true);
 }
 

src/protocol/ArgParser.cxx

@@ -81,7 +81,7 @@ check_range(Client &client, unsigned *value_r1, unsigned *value_r2,
 		/* compatibility with older MPD versions: specifying
 		   "-1" makes MPD display the whole list */
 		*value_r1 = 0;
-		*value_r2 = std::numeric_limits<unsigned>::max();
+		*value_r2 = std::numeric_limits<int>::max();
 		return true;
 	}
 
@@ -108,7 +108,7 @@ check_range(Client &client, unsigned *value_r1, unsigned *value_r2,
 		}
 
 		if (test == test2)
-			value = std::numeric_limits<unsigned>::max();
+			value = std::numeric_limits<int>::max();
 
 		if (value < 0) {
 			command_error(client, ACK_ERROR_ARG,

test/run_decoder.cxx

@@ -175,8 +175,10 @@ decoder_replay_gain(gcc_unused Decoder &decoder,
 }
 
 void
-decoder_mixramp(gcc_unused Decoder &decoder, gcc_unused MixRampInfo &&mix_ramp)
+decoder_mixramp(gcc_unused Decoder &decoder, MixRampInfo &&mix_ramp)
 {
+	fprintf(stderr, "MixRamp: start='%s' end='%s'\n",
+		mix_ramp.GetStart(), mix_ramp.GetEnd());
 }
 
 int main(int argc, char **argv)

test/test_protocol.cxx

@@ -0,0 +1,60 @@
+#include "config.h"
+#include "protocol/ArgParser.hxx"
+#include "protocol/Result.hxx"
+#include "Compiler.h"
+
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/TestFactoryRegistry.h>
+#include <cppunit/ui/text/TestRunner.h>
+#include <cppunit/extensions/HelperMacros.h>
+
+static enum ack last_error = ack(-1);
+
+void
+command_error(gcc_unused Client &client, enum ack error,
+	      gcc_unused const char *fmt, ...)
+{
+	last_error = error;
+}
+
+class ArgParserTest : public CppUnit::TestFixture {
+	CPPUNIT_TEST_SUITE(ArgParserTest);
+	CPPUNIT_TEST(TestRange);
+	CPPUNIT_TEST_SUITE_END();
+
+public:
+	void TestRange();
+};
+
+void
+ArgParserTest::TestRange()
+{
+	Client &client = *(Client *)nullptr;
+	unsigned a, b;
+
+	CPPUNIT_ASSERT(check_range(client, &a, &b, "1"));
+	CPPUNIT_ASSERT_EQUAL(1u, a);
+	CPPUNIT_ASSERT_EQUAL(2u, b);
+
+	CPPUNIT_ASSERT(check_range(client, &a, &b, "1:5"));
+	CPPUNIT_ASSERT_EQUAL(1u, a);
+	CPPUNIT_ASSERT_EQUAL(5u, b);
+
+	CPPUNIT_ASSERT(check_range(client, &a, &b, "1:"));
+	CPPUNIT_ASSERT_EQUAL(1u, a);
+	CPPUNIT_ASSERT(b >= 999999u);
+
+	CPPUNIT_ASSERT(!check_range(client, &a, &b, "-2"));
+	CPPUNIT_ASSERT_EQUAL(ACK_ERROR_ARG, last_error);
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(ArgParserTest);
+
+int
+main(gcc_unused int argc, gcc_unused char **argv)
+{
+	CppUnit::TextUi::TestRunner runner;
+	auto &registry = CppUnit::TestFactoryRegistry::getRegistry();
+	runner.addTest(registry.makeTest());
+	return runner.run() ? EXIT_SUCCESS : EXIT_FAILURE;
+}