24 files changed, 201 insertions, 116 deletions
diff --git a/Makefile.am b/Makefile.am
index c105b9945..dac3e1772 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -130,7 +130,6 @@ libmpd_a_SOURCES = \
 	src/IOThread.cxx src/IOThread.hxx \
 	src/Instance.cxx src/Instance.hxx \
 	src/win32/Win32Main.cxx \
-	src/osx/OSXMain.cxx \
 	src/GlobalEvents.cxx src/GlobalEvents.hxx \
 	src/MixRampInfo.hxx \
 	src/MusicBuffer.cxx src/MusicBuffer.hxx \
diff --git a/NEWS b/NEWS
index 3b5531bde..81656deca 100644
--- a/NEWS
+++ b/NEWS
@@ -4,11 +4,21 @@ ver 0.20 (not yet released)
 * output
   - pulse: set channel map to WAVE-EX
 
-ver 0.19.2 (not yet released)
+ver 0.19.2 (2014/11/02)
+* input
+  - curl: fix redirected streams
+* playlist
+  - don't allow empty playlist name
+  - m3u: don't ignore unterminated last line
+  - m3u: recognize the file suffix ".m3u8"
 * decoder
+  - ignore URI query string for plugin detection
+  - faad: remove workaround for ancient libfaad2 ABI bug
   - ffmpeg: recognize MIME type audio/aacp
+  - mad: fix negative replay gain values
 * output
   - fix memory leak after filter initialization error
+  - fall back to PCM if given DSD sample rate is not supported
 * fix assertion failure on unsupported PCM conversion
 * auto-disable plugins that require GLib when --disable-glib is used
 
@@ -99,6 +109,15 @@ ver 0.19 (2014/10/10)
 * install systemd unit for socket activation
 * Android port
 
+ver 0.18.17 (2014/11/02)
+* playlist
+  - don't allow empty playlist name
+  - m3u: recognize the file suffix ".m3u8"
+* decoder
+  - ignore URI query string for plugin detection
+  - faad: remove workaround for ancient libfaad2 ABI bug
+  - ffmpeg: recognize MIME type audio/aacp
+
 ver 0.18.16 (2014/09/26)
 * fix DSD breakage due to typo in configure.ac
 
diff --git a/m4/faad.m4 b/m4/faad.m4
index 5ca520e79..9dcb1ccab 100644
--- a/m4/faad.m4
+++ b/m4/faad.m4
@@ -62,36 +62,7 @@ int main() {
 	CPPFLAGS=$oldcppflags
 fi
 
-if test x$enable_aac = xyes; then
-	oldcflags=$CFLAGS
-	oldlibs=$LIBS
-	oldcppflags=$CPPFLAGS
-	CFLAGS="$CFLAGS $FAAD_CFLAGS -Werror"
-	LIBS="$LIBS $FAAD_LIBS"
-	CPPFLAGS=$CFLAGS
-
-	AC_MSG_CHECKING(for broken libfaad headers)
-	AC_COMPILE_IFELSE([AC_LANG_SOURCE([
-#include <faad.h>
-#include <stddef.h>
-#include <stdint.h>
-
-int main() {
-	unsigned char channels;
-	uint32_t sample_rate;
-
-	NeAACDecInit2(NULL, NULL, 0, &sample_rate, &channels);
-	return 0;
-}
-	])],
-		[AC_MSG_RESULT(correct)],
-		[AC_MSG_RESULT(broken);
-		AC_DEFINE(HAVE_FAAD_LONG, 1, [Define if faad.h uses the broken "unsigned long" pointers])])
-
-	CFLAGS=$oldcflags
-	LIBS=$oldlibs
-	CPPFLAGS=$oldcppflags
-else
+if test x$enable_aac = xno; then
 	FAAD_LIBS=""
 	FAAD_CFLAGS=""
 fi
diff --git a/src/Main.cxx b/src/Main.cxx
index d17590e44..2719c05e0 100644
--- a/src/Main.cxx
+++ b/src/Main.cxx
@@ -114,6 +114,10 @@
 #include <ws2tcpip.h>
 #endif
 
+#ifdef __APPLE__
+#include <dispatch/dispatch.h>
+#endif
+
 #include <limits.h>
 
 static constexpr unsigned DEFAULT_BUFFER_SIZE = 4096;
@@ -401,8 +405,6 @@ int main(int argc, char *argv[])
 {
 #ifdef WIN32
 	return win32_main(argc, argv);
-#elif __APPLE__
-	return osx_main(argc, argv);
 #else
 	return mpd_main(argc, argv);
 #endif
@@ -410,6 +412,8 @@ int main(int argc, char *argv[])
 
 #endif
 
+static int mpd_main_after_fork(struct options);
+
 #ifdef ANDROID
 static inline
 #endif
@@ -513,6 +517,27 @@ int mpd_main(int argc, char *argv[])
 	daemonize_begin(options.daemon);
 #endif
 
+#ifdef __APPLE__
+	/* Runs the OS X native event loop in the main thread, and runs
+	   the rest of mpd_main on a new thread. This lets CoreAudio receive
+	   route change notifications (e.g. plugging or unplugging headphones).
+	   All hardware output on OS X ultimately uses CoreAudio internally.
+	   This must be run after forking; if dispatch is called before forking,
+	   the child process will have a broken internal dispatch state. */
+	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+		exit(mpd_main_after_fork(options));
+	});
+	dispatch_main();
+	return EXIT_FAILURE; // unreachable, because dispatch_main never returns
+#else
+	return mpd_main_after_fork(options);
+#endif
+}
+
+static int mpd_main_after_fork(struct options options)
+{
+	Error error;
+
 	GlobalEvents::Initialize(*instance->event_loop);
 	GlobalEvents::Register(GlobalEvents::IDLE, idle_event_emitted);
 #ifdef WIN32
diff --git a/src/Main.hxx b/src/Main.hxx
index dae7a5043..7e3fecd0b 100644
--- a/src/Main.hxx
+++ b/src/Main.hxx
@@ -75,15 +75,4 @@ win32_app_stopping(void);
 
 #endif
 
-#ifdef __APPLE__
-
-/* Runs the OS X native event loop in the main thread, and runs
- * mpd_main on a new thread. This lets CoreAudio receive route
- * change notifications (e.g. plugging or unplugging headphones).
- * All hardware output on OS X ultimately uses CoreAudio internally.
- */
-int osx_main(int argc, char *argv[]);
-
-#endif
-
 #endif
diff --git a/src/PlaylistFile.cxx b/src/PlaylistFile.cxx
index f0aa2d2d7..ab269378a 100644
--- a/src/PlaylistFile.cxx
+++ b/src/PlaylistFile.cxx
@@ -64,6 +64,10 @@ spl_global_init(void)
 bool
 spl_valid_name(const char *name_utf8)
 {
+	if (*name_utf8 == 0)
+		/* empty name not allowed */
+		return false;
+
 	/*
 	 * Not supporting '/' was done out of laziness, and we should
 	 * really strive to support it in the future.
diff --git a/src/TagStream.cxx b/src/TagStream.cxx
index 639763373..6201028f6 100644
--- a/src/TagStream.cxx
+++ b/src/TagStream.cxx
@@ -46,7 +46,8 @@ tag_stream_scan(InputStream &is, const tag_handler &handler, void *ctx)
 {
 	assert(is.IsReady());
 
-	const char *const suffix = uri_get_suffix(is.GetURI());
+	UriSuffixBuffer suffix_buffer;
+	const char *const suffix = uri_get_suffix(is.GetURI(), suffix_buffer);
 	const char *const mime = is.GetMimeType();
 
 	if (suffix == nullptr && mime == nullptr)
diff --git a/src/decoder/DecoderThread.cxx b/src/decoder/DecoderThread.cxx
index a39cfa6e9..dd5518b98 100644
--- a/src/decoder/DecoderThread.cxx
+++ b/src/decoder/DecoderThread.cxx
@@ -237,7 +237,8 @@ static bool
 decoder_run_stream_locked(Decoder &decoder, InputStream &is,
 			  const char *uri, bool &tried_r)
 {
-	const char *const suffix = uri_get_suffix(uri);
+	UriSuffixBuffer suffix_buffer;
+	const char *const suffix = uri_get_suffix(uri, suffix_buffer);
 
 	using namespace std::placeholders;
 	const auto f = std::bind(decoder_run_stream_plugin,
diff --git a/src/decoder/plugins/FaadDecoderPlugin.cxx b/src/decoder/plugins/FaadDecoderPlugin.cxx
index 793ab1011..add23aaa4 100644
--- a/src/decoder/plugins/FaadDecoderPlugin.cxx
+++ b/src/decoder/plugins/FaadDecoderPlugin.cxx
@@ -255,20 +255,12 @@ faad_decoder_init(NeAACDecHandle decoder, DecoderBuffer &buffer,
 	}
 
 	uint8_t channels;
-	uint32_t sample_rate;
-#ifdef HAVE_FAAD_LONG
-	/* neaacdec.h declares all arguments as "unsigned long", but
-	   internally expects uint32_t pointers.  To avoid gcc
-	   warnings, use this workaround. */
-	unsigned long *sample_rate_p = (unsigned long *)(void *)&sample_rate;
-#else
-	uint32_t *sample_rate_p = &sample_rate;
-#endif
+	unsigned long sample_rate;
 	long nbytes = NeAACDecInit(decoder,
 				   /* deconst hack, libfaad requires this */
 				   const_cast<unsigned char *>(data.data),
 				   data.size,
-				   sample_rate_p, &channels);
+				   &sample_rate, &channels);
 	if (nbytes < 0) {
 		error.Set(faad_decoder_domain, "Not an AAC stream");
 		return false;
diff --git a/src/decoder/plugins/MadDecoderPlugin.cxx b/src/decoder/plugins/MadDecoderPlugin.cxx
index 41efb593d..de6c9b127 100644
--- a/src/decoder/plugins/MadDecoderPlugin.cxx
+++ b/src/decoder/plugins/MadDecoderPlugin.cxx
@@ -657,7 +657,7 @@ parse_lame(struct lame *lame, struct mad_bitptr *ptr, int *bitlen)
 	unsigned name = mad_bit_read(ptr, 3); /* gain name */
 	unsigned orig = mad_bit_read(ptr, 3); /* gain originator */
 	unsigned sign = mad_bit_read(ptr, 1); /* sign bit */
-	unsigned gain = mad_bit_read(ptr, 9); /* gain*10 */
+	int gain = mad_bit_read(ptr, 9); /* gain*10 */
 	if (gain && name == 1 && orig != 0) {
 		lame->track_gain = ((sign ? -gain : gain) / 10.0) + adj;
 		FormatDebug(mad_domain, "LAME track gain found: %f",
diff --git a/src/decoder/plugins/Mp4v2DecoderPlugin.cxx b/src/decoder/plugins/Mp4v2DecoderPlugin.cxx
index bf97763c5..34bccd243 100644
--- a/src/decoder/plugins/Mp4v2DecoderPlugin.cxx
+++ b/src/decoder/plugins/Mp4v2DecoderPlugin.cxx
@@ -39,15 +39,7 @@ static MP4TrackId
 mp4_get_aac_track(MP4FileHandle handle, NeAACDecHandle decoder,
 		  AudioFormat &audio_format, Error &error)
 {
-	uint32_t sample_rate;
-#ifdef HAVE_FAAD_LONG
-	/* neaacdec.h declares all arguments as "unsigned long", but
-	   internally expects uint32_t pointers.  To avoid gcc
-	   warnings, use this workaround. */
-	unsigned long *sample_rate_r = (unsigned long*)&sample_rate;
-#else
-	uint32_t *sample_rate_r = sample_rate;
-#endif
+	unsigned long sample_rate;
 
 	const MP4TrackId tracks = MP4GetNumberOfTracks(handle);
 
@@ -80,7 +72,7 @@ mp4_get_aac_track(MP4FileHandle handle, NeAACDecHandle decoder,
 
 		uint8_t channels;
 		int32_t nbytes = NeAACDecInit(decoder, buff, buff_size,
-				       sample_rate_r, &channels);
+					      &sample_rate, &channels);
 
 		free(buff);
 
diff --git a/src/input/AsyncInputStream.hxx b/src/input/AsyncInputStream.hxx
index 7935f1a17..d1f0c3b9d 100644
--- a/src/input/AsyncInputStream.hxx
+++ b/src/input/AsyncInputStream.hxx
@@ -83,6 +83,10 @@ protected:
 	 */
 	void SetTag(Tag *_tag);
 
+	void ClearTag() {
+		SetTag(nullptr);
+	}
+
 	void Pause();
 
 	bool IsPaused() const {
diff --git a/src/input/InputStream.hxx b/src/input/InputStream.hxx
index 15c350103..81b903ba2 100644
--- a/src/input/InputStream.hxx
+++ b/src/input/InputStream.hxx
@@ -200,6 +200,10 @@ public:
 		return mime.empty() ? nullptr : mime.c_str();
 	}
 
+	void ClearMimeType() {
+		mime.clear();
+	}
+
 	gcc_nonnull_all
 	void SetMimeType(const char *_mime) {
 		assert(!ready);
diff --git a/src/input/TextInputStream.cxx b/src/input/TextInputStream.cxx
index b79f64bdc..5a8dcc065 100644
--- a/src/input/TextInputStream.cxx
+++ b/src/input/TextInputStream.cxx
@@ -38,8 +38,8 @@ TextInputStream::ReadLine()
 	while (true) {
 		auto dest = buffer.Write();
 		if (dest.size < 2) {
-			/* end of file (or line too long): terminate
-			   the current line */
+			/* line too long: terminate the current
+			   line */
 
 			assert(!dest.IsEmpty());
 			dest[0] = 0;
@@ -66,7 +66,19 @@ TextInputStream::ReadLine()
 		if (line != nullptr)
 			return line;
 
-		if (nbytes == 0)
-			return nullptr;
+		if (nbytes == 0) {
+			/* end of file: see if there's an unterminated
+			   line */
+
+			dest = buffer.Write();
+			assert(!dest.IsEmpty());
+			dest[0] = 0;
+
+			auto r = buffer.Read();
+			buffer.Clear();
+			return r.IsEmpty()
+				? nullptr
+				: r.data;
+		}
 	}
 }
diff --git a/src/input/plugins/CurlInputPlugin.cxx b/src/input/plugins/CurlInputPlugin.cxx
index 617805e2c..1e1a46108 100644
--- a/src/input/plugins/CurlInputPlugin.cxx
+++ b/src/input/plugins/CurlInputPlugin.cxx
@@ -109,6 +109,13 @@ struct CurlInputStream final : public AsyncInputStream {
 	 */
 	void FreeEasyIndirect();
 
+	/**
+	 * Called when a new response begins.  This is used to discard
+	 * headers from previous responses (for example authentication
+	 * and redirects).
+	 */
+	void ResponseBoundary();
+
 	void HeaderReceived(const char *name, std::string &&value);
 
 	size_t DataReceived(const void *ptr, size_t size);
@@ -598,6 +605,20 @@ CurlInputStream::~CurlInputStream()
 }
 
 inline void
+CurlInputStream::ResponseBoundary()
+{
+	/* undo all effects of HeaderReceived() because the previous
+	   response was not applicable for this stream */
+
+	seekable = false;
+	size = UNKNOWN_SIZE;
+	ClearMimeType();
+	ClearTag();
+
+	// TODO: reset the IcyInputStream?
+}
+
+inline void
 CurlInputStream::HeaderReceived(const char *name, std::string &&value)
 {
 	if (IsSeekPending())
@@ -645,6 +666,11 @@ input_curl_headerfunction(void *ptr, size_t size, size_t nmemb, void *stream)
 	size *= nmemb;
 
 	const char *header = (const char *)ptr;
+	if (size > 5 && memcmp(header, "HTTP/", 5) == 0) {
+		c.ResponseBoundary();
+		return size;
+	}
+
 	const char *end = header + size;
 
 	char name[64];
@@ -720,10 +746,10 @@ CurlInputStream::InitEasy(Error &error)
 			 input_curl_writefunction);
 	curl_easy_setopt(easy, CURLOPT_WRITEDATA, this);
 	curl_easy_setopt(easy, CURLOPT_HTTP200ALIASES, http_200_aliases);
-	curl_easy_setopt(easy, CURLOPT_FOLLOWLOCATION, 1);
-	curl_easy_setopt(easy, CURLOPT_NETRC, 1);
-	curl_easy_setopt(easy, CURLOPT_MAXREDIRS, 5);
-	curl_easy_setopt(easy, CURLOPT_FAILONERROR, true);
+	curl_easy_setopt(easy, CURLOPT_FOLLOWLOCATION, 1l);
+	curl_easy_setopt(easy, CURLOPT_NETRC, 1l);
+	curl_easy_setopt(easy, CURLOPT_MAXREDIRS, 5l);
+	curl_easy_setopt(easy, CURLOPT_FAILONERROR, 1l);
 	curl_easy_setopt(easy, CURLOPT_ERRORBUFFER, error_buffer);
 	curl_easy_setopt(easy, CURLOPT_NOPROGRESS, 1l);
 	curl_easy_setopt(easy, CURLOPT_NOSIGNAL, 1l);
diff --git a/src/lib/upnp/Discovery.cxx b/src/lib/upnp/Discovery.cxx
index 9ea78c624..1539e1512 100644
--- a/src/lib/upnp/Discovery.cxx
+++ b/src/lib/upnp/Discovery.cxx
@@ -26,6 +26,7 @@
 
 #include <upnp/upnptools.h>
 
+#include <stdlib.h>
 #include <string.h>
 
 // The service type string we are looking for.
diff --git a/src/osx/OSXMain.cxx b/src/osx/OSXMain.cxx
deleted file mode 100644
index 1ac9aec23..000000000
--- a/src/osx/OSXMain.cxx
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright (C) 2003-2014 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "Main.hxx"
-
-#ifdef __APPLE__
-
-#include <stdlib.h>
-#include <dispatch/dispatch.h>
-
-int osx_main(int argc, char *argv[])
-{
-	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
-		exit(mpd_main(argc, argv));
-	});
-	dispatch_main();
-	return EXIT_FAILURE; // unreachable, because dispatch_main never returns
-}
-
-#endif
diff --git a/src/output/OutputThread.cxx b/src/output/OutputThread.cxx
index 54664bb65..2ec0670c1 100644
--- a/src/output/OutputThread.cxx
+++ b/src/output/OutputThread.cxx
@@ -22,6 +22,7 @@
 #include "OutputAPI.hxx"
 #include "Domain.hxx"
 #include "pcm/PcmMix.hxx"
+#include "pcm/Domain.hxx"
 #include "notify.hxx"
 #include "filter/FilterInternal.hxx"
 #include "filter/plugins/ConvertFilterPlugin.hxx"
@@ -165,6 +166,10 @@ AudioOutput::Open()
 	out_audio_format.ApplyMask(config_audio_format);
 
 	mutex.unlock();
+
+	const AudioFormat retry_audio_format = out_audio_format;
+
+ retry_without_dsd:
 	success = ao_plugin_open(this, out_audio_format, error);
 	mutex.lock();
 
@@ -189,6 +194,31 @@ AudioOutput::Open()
 
 		mutex.unlock();
 		ao_plugin_close(this);
+
+		if (error.IsDomain(pcm_domain) &&
+		    out_audio_format.format == SampleFormat::DSD) {
+			/* if the audio output supports DSD, but not
+			   the given sample rate, it asks MPD to
+			   resample; resampling DSD however is not
+			   implemented; our last resort is to give up
+			   DSD and fall back to PCM */
+
+			// TODO: clean up this workaround
+
+			FormatError(output_domain, "Retrying without DSD");
+
+			out_audio_format = retry_audio_format;
+			out_audio_format.format = SampleFormat::FLOAT;
+
+			/* clear the Error to allow reusing it */
+			error.Clear();
+
+			/* sorry for the "goto" - this is a workaround
+			   for the stable branch that should be as
+			   unintrusive as possible */
+			goto retry_without_dsd;
+		}
+
 		CloseFilter();
 		mutex.lock();
 
diff --git a/src/playlist/PlaylistRegistry.cxx b/src/playlist/PlaylistRegistry.cxx
index bc5932de3..4e9ef890e 100644
--- a/src/playlist/PlaylistRegistry.cxx
+++ b/src/playlist/PlaylistRegistry.cxx
@@ -139,12 +139,12 @@ static SongEnumerator *
 playlist_list_open_uri_suffix(const char *uri, Mutex &mutex, Cond &cond,
 			      const bool *tried)
 {
-	const char *suffix;
 	SongEnumerator *playlist = nullptr;
 
 	assert(uri != nullptr);
 
-	suffix = uri_get_suffix(uri);
+	UriSuffixBuffer suffix_buffer;
+	const char *const suffix = uri_get_suffix(uri, suffix_buffer);
 	if (suffix == nullptr)
 		return nullptr;
 
@@ -257,7 +257,10 @@ playlist_list_open_stream(InputStream &is, const char *uri)
 			return playlist;
 	}
 
-	const char *suffix = uri != nullptr ? uri_get_suffix(uri) : nullptr;
+	UriSuffixBuffer suffix_buffer;
+	const char *suffix = uri != nullptr
+		? uri_get_suffix(uri, suffix_buffer)
+		: nullptr;
 	if (suffix != nullptr) {
 		auto playlist = playlist_list_open_stream_suffix(is, suffix);
 		if (playlist != nullptr)
diff --git a/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx b/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
index fdd4357ca..93316ca6c 100644
--- a/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
+++ b/src/playlist/plugins/ExtM3uPlaylistPlugin.cxx
@@ -130,6 +130,7 @@ ExtM3uPlaylist::NextSong()
 
 static const char *const extm3u_suffixes[] = {
 	"m3u",
+	"m3u8",
 	nullptr
 };
 
diff --git a/src/playlist/plugins/M3uPlaylistPlugin.cxx b/src/playlist/plugins/M3uPlaylistPlugin.cxx
index a4125bc70..0428d291a 100644
--- a/src/playlist/plugins/M3uPlaylistPlugin.cxx
+++ b/src/playlist/plugins/M3uPlaylistPlugin.cxx
@@ -60,6 +60,7 @@ M3uPlaylist::NextSong()
 
 static const char *const m3u_suffixes[] = {
 	"m3u",
+	"m3u8",
 	nullptr
 };
 
diff --git a/src/util/UriUtil.cxx b/src/util/UriUtil.cxx
index fdca47c00..62977e91b 100644
--- a/src/util/UriUtil.cxx
+++ b/src/util/UriUtil.cxx
@@ -54,6 +54,23 @@ uri_get_suffix(const char *uri)
 	return suffix;
 }
 
+const char *
+uri_get_suffix(const char *uri, UriSuffixBuffer &buffer)
+{
+	const char *suffix = uri_get_suffix(uri);
+	if (suffix == nullptr)
+		return nullptr;
+
+	const char *q = strchr(suffix, '?');
+	if (q != nullptr && size_t(q - suffix) < sizeof(buffer.data)) {
+		memcpy(buffer.data, suffix, q - suffix);
+		buffer.data[q - suffix] = 0;
+		suffix = buffer.data;
+	}
+
+	return suffix;
+}
+
 static const char *
 verify_uri_segment(const char *p)
 {
diff --git a/src/util/UriUtil.hxx b/src/util/UriUtil.hxx
index c2cc97a63..d478d5b92 100644
--- a/src/util/UriUtil.hxx
+++ b/src/util/UriUtil.hxx
@@ -42,6 +42,17 @@ gcc_pure
 const char *
 uri_get_suffix(const char *uri);
 
+struct UriSuffixBuffer {
+	char data[8];
+};
+
+/**
+ * Returns the file name suffix, ignoring the query string.
+ */
+gcc_pure
+const char *
+uri_get_suffix(const char *uri, UriSuffixBuffer &buffer);
+
 /**
  * Returns true if this is a safe "local" URI:
  *
diff --git a/test/test_util.cxx b/test/test_util.cxx
index aaadec68f..3e79aeca0 100644
--- a/test/test_util.cxx
+++ b/test/test_util.cxx
@@ -34,6 +34,25 @@ public:
 				     uri_get_suffix(".jpg"));
 		CPPUNIT_ASSERT_EQUAL((const char *)nullptr,
 				     uri_get_suffix("/foo/.jpg"));
+
+		/* the first overload does not eliminate the query
+		   string */
+		CPPUNIT_ASSERT_EQUAL(0, strcmp(uri_get_suffix("/foo/bar.jpg?query_string"),
+					       "jpg?query_string"));
+
+		/* ... but the second one does */
+		UriSuffixBuffer buffer;
+		CPPUNIT_ASSERT_EQUAL(0, strcmp(uri_get_suffix("/foo/bar.jpg?query_string",
+							      buffer),
+					       "jpg"));
+
+		/* repeat some of the above tests with the second overload */
+		CPPUNIT_ASSERT_EQUAL((const char *)nullptr,
+				     uri_get_suffix("/foo/bar", buffer));
+		CPPUNIT_ASSERT_EQUAL((const char *)nullptr,
+				     uri_get_suffix("/foo.jpg/bar", buffer));
+		CPPUNIT_ASSERT_EQUAL(0, strcmp(uri_get_suffix("/foo/bar.jpg", buffer),
+					       "jpg"));
 	}
 
 	void TestRemoveAuth() {