From cee45b78694de3e35090c7496af6e2a7e867f517 Mon Sep 17 00:00:00 2001
From: Sebastian Krysmanski <noreply@manski.net>
Date: Fri, 27 Dec 2013 16:45:49 +0100
Subject: [PATCH] Fixed and documented example.c * Most code from shairplay.c *
 Removed password (didn't work) * Renamed device to "FakePort" ("AppleTV" may
 already be in use) * Example no longer quits after 100 seconds

---
 .gitignore         |  1 +
 src/test/example.c | 78 +++++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 72 insertions(+), 7 deletions(-)

diff --git a/.gitignore b/.gitignore
index dbb3f51..95089f2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,4 +26,5 @@ autom4te.cache
 aclocal.m4
 stamp-h1
 src/shairplay
+src/test/example
 
diff --git a/src/test/example.c b/src/test/example.c
index 393b782..e93f252 100644
--- a/src/test/example.c
+++ b/src/test/example.c
@@ -1,3 +1,15 @@
+/*
+ * Starts the AirPlay server (name "FakePort") and dumps the received contents
+ * to files:
+ * - audio.pcm : decoded audio content
+ * - metadata.bin : meta data
+ * - covertart.jpg : cover art
+ *
+ * Requires avahi-daemon to run. Also requires file "airplay.key" in the same directory.
+ *
+ * Compile with: gcc -o example -g -I../../include/shairplay example.c -lshairplay 
+ */
+
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
@@ -9,6 +21,35 @@
 #include "dnssd.h"
 #include "raop.h"
 
+static int running;
+
+#ifndef WIN32
+
+#include <signal.h>
+static void
+signal_handler(int sig)
+{
+	switch (sig) {
+	case SIGINT:
+	case SIGTERM:
+		running = 0;
+		break;
+	}
+}
+static void
+init_signals(void)
+{
+	struct sigaction sigact;
+
+	sigact.sa_handler = signal_handler;
+	sigemptyset(&sigact.sa_mask);
+	sigact.sa_flags = 0;
+	sigaction(SIGINT, &sigact, NULL);
+	sigaction(SIGTERM, &sigact, NULL);
+}
+
+#endif
+
 static void *
 audio_init(void *cls, int bits, int channels, int samplerate)
 {
@@ -75,14 +116,16 @@ raop_log_callback(void *cls, int level, const char *msg)
 int
 main(int argc, char *argv[])
 {
-        const char *name = "AppleTV";
-        unsigned short raop_port = 5000;
-        const char hwaddr[] = { 0x48, 0x5d, 0x60, 0x7c, 0xee, 0x22 };
+	const char *name = "FakePort";
+	unsigned short raop_port = 5000;
+	const char hwaddr[] = { 0x48, 0x5d, 0x60, 0x7c, 0xee, 0x22 };
 
 	dnssd_t *dnssd;
 	raop_t *raop;
 	raop_callbacks_t raop_cbs;
 
+	int error;
+
 	raop_cbs.cls = NULL;
 	raop_cbs.audio_init = audio_init;
 	raop_cbs.audio_set_volume = audio_set_volume;
@@ -93,18 +136,39 @@ main(int argc, char *argv[])
 	raop_cbs.audio_destroy = audio_destroy;
 
 	raop = raop_init_from_keyfile(10, &raop_cbs, "airport.key", NULL);
+	if (raop == NULL) {
+		fprintf(stderr, "Could not initialize the RAOP service (airport.key missing?)\n");
+		return -1;
+	}
+
 	raop_set_log_level(raop, RAOP_LOG_DEBUG);
 	raop_set_log_callback(raop, &raop_log_callback, NULL);
-	raop_start(raop, &raop_port, hwaddr, sizeof(hwaddr), "test");
+	raop_start(raop, &raop_port, hwaddr, sizeof(hwaddr), NULL);
+
+	error = 0;
+	dnssd = dnssd_init(&error);
+	if (error) {
+		fprintf(stderr, "ERROR: Could not initialize dnssd library!\n");
+		fprintf(stderr, "------------------------------------------\n");
+		fprintf(stderr, "You could try the following resolutions based on your OS:\n");
+		fprintf(stderr, "Windows: Try installing http://support.apple.com/kb/DL999\n");
+		fprintf(stderr, "Debian/Ubuntu: Try installing libavahi-compat-libdnssd-dev package\n");
+		raop_destroy(raop);
+		return -1;
+	}
 
-	dnssd = dnssd_init(NULL);
 	dnssd_register_raop(dnssd, name, raop_port, hwaddr, sizeof(hwaddr), 1);
 
+	printf("Startup complete... Kill with Ctrl+C\n");
+
+	running = 1;
+	while (running != 0) {
 #ifndef WIN32
-	sleep(100);
+		sleep(1);
 #else
-	Sleep(100*1000);
+		Sleep(1000);
 #endif
+	}
 
 	dnssd_unregister_raop(dnssd);
 	dnssd_destroy(dnssd);
-- 
2.34.1