Add FreeBSD service and installation. Change default PID file directory. SystemV and SystemD scripts should be updated.

Makefile.am

@@ -4,7 +4,11 @@ bin_PROGRAMS = shairport-sync
 shairport_sync_SOURCES = shairport.c rtsp.c mdns.c mdns_external.c common.c rtp.c player.c alac.c audio.c loudness.c
 
 AM_CFLAGS = -Wno-multichar -DSYSCONFDIR=\"$(sysconfdir)\" -O2
-AM_CPPFLAGS = -Wno-multichar -DSYSCONFDIR=\"$(sysconfdir)\" -O2
+if BUILD_FOR_FREEBSD
+  AM_CPPFLAGS = -I/usr/local/include -Wno-multichar -DSYSCONFDIR=\"$(sysconfdir)\" -O2
+else
+  AM_CPPFLAGS = -Wno-multichar -DSYSCONFDIR=\"$(sysconfdir)\" -O2
+endif
 
 if USE_APPLE_ALAC
   shairport_sync_SOURCES += apple_alac.cpp
@@ -70,11 +74,19 @@ if INSTALL_CONFIG_FILES
 	cp scripts/shairport-sync.conf $(DESTDIR)$(sysconfdir)/shairport-sync.conf.sample
 	[ -f $(DESTDIR)$(sysconfdir)/shairport-sync.conf ] || cp scripts/shairport-sync.conf $(DESTDIR)$(sysconfdir)/shairport-sync.conf
 endif
-if INSTALL_SYSTEMV
+if BUILD_FOR_SYSTEMV
 	[ -e $(DESTDIR)$(sysconfdir)/init.d ] || mkdir -p $(DESTDIR)$(sysconfdir)/init.d
 	[ -f $(DESTDIR)$(sysconfdir)/init.d/shairport-sync ] || cp scripts/shairport-sync $(DESTDIR)$(sysconfdir)/init.d/
 endif
-if INSTALL_SYSTEMD
+if BUILD_FOR_SYSTEMD
 	[ -e $(DESTDIR)$(systemdsystemunitdir) ] || mkdir -p $(DESTDIR)$(systemdsystemunitdir)
 	[ -f $(DESTDIR)$(systemdsystemunitdir)/shairport-sync.service ] || cp scripts/shairport-sync.service $(DESTDIR)$(systemdsystemunitdir)
 endif
+if BUILD_FOR_FREEBSD
+	pw showgroup shairport-sync > /dev/null 2>&1 || pw addgroup  shairport-sync > /dev/null 2>&1
+	pw showuser shairport-sync > /dev/null 2>&1 || pw adduser  shairport-sync > /dev/null 2>&1
+	[ -e /var/run/shairport-sync ] || mkdir -p /var/run/shairport-sync
+	chown shairport-sync:shairport-sync /var/run/shairport-sync
+	[ -f /usr/local/etc/rc.d/shairport-sync ] || cp scripts/shairport-sync.freebsd /usr/local/etc/rc.d/shairport-sync
+	chmod 555 /usr/local/etc/rc.d/shairport-sync 
+endif

configure.ac

@@ -8,8 +8,6 @@ AC_CONFIG_SRCDIR([shairport.c])
 AC_CONFIG_HEADERS([config.h])
 
 # Derived from the Avahi configure.ac file
-#
-#
 # Specifying the OS type, defaulting to linux.
 #
 AC_ARG_WITH(os_type, AS_HELP_STRING([--with-os-type=OSType],[Specify the distribution to target: One of linux freebsd or darwin]))
@@ -30,6 +28,8 @@ if test "x${with_os_type}" = xlinux -o "x${with_os_type}" = xfreebsd ; then
  AC_CHECK_LIB([rt],[clock_gettime], , AC_MSG_ERROR(librt needed))
 fi
 
+AM_CONDITIONAL([BUILD_FOR_FREEBSD], [test "x${with_os_type}" = xfreebsd ])
+
 ##### Some build systems are not fully using pkg-config, so we can use the flag ${with_pkg_config} on a case-by-case basis
 ##### to control how to deal with them
 
@@ -73,13 +73,13 @@ AM_CONDITIONAL([USE_PIPE], [test "x$with_pipe" = "xyes" ])
 
 AC_ARG_WITH([systemv],
 [  --with-systemv = install a System V startup script during a make install], , )
-AM_CONDITIONAL([INSTALL_SYSTEMV], [test "x$with_systemv" = "xyes"])
+AM_CONDITIONAL([BUILD_FOR_SYSTEMV], [test "x$with_systemv" = "xyes"])
 
 # Check to see if we should include the systemd stuff to define it as a service
 
 AC_ARG_WITH([systemd],
 [  --with-systemd = install a systemd service description file during a make install], , )
-AM_CONDITIONAL([INSTALL_SYSTEMD], [test "x$with_systemd" = "xyes"])
+AM_CONDITIONAL([BUILD_FOR_SYSTEMD], [test "x$with_systemd" = "xyes"])
 
 # Add the libconfig package
 if  test "x${with_pkg_config}" = xyes ; then

scripts/shairport-sync.freebsd

@@ -0,0 +1,26 @@
+#!/bin/sh
+#
+# $FreeBSD: releng/11.0/etc/rc.d/motd 298514 2016-04-23 16:10:54Z lme $
+#
+
+# PROVIDE: shairport-sync
+# REQUIRE: FILESYSTEMS DAEMON hostname 
+
+. /etc/rc.subr
+
+name="shairport-sync"
+start_cmd="${name}_start"
+stop_cmd="${name}_stop"
+
+shairport-sync_start()
+{
+	su -m shairport-sync -c "/usr/local/bin/shairport-sync -d"
+}
+
+shairport-sync_stop()
+{
+	su -m shairport-sync -c "/usr/local/bin/shairport-sync -k"
+}
+
+load_rc_config $name
+run_rc_command "$1"

shairport.c

@@ -873,9 +873,9 @@ void shairport_startup_complete(void) {
   }
 }
 
-#ifdef USE_CUSTOM_PID_DIR
 
 const char *pid_file_proc(void) {
+#ifdef USE_CUSTOM_PID_DIR
 #ifdef HAVE_ASPRINTF
   static char *fn = NULL;
   asprintf(&fn, "%s/%s.pid", PIDDIR, daemon_pid_file_ident ? daemon_pid_file_ident : "unknown");
@@ -884,10 +884,18 @@ const char *pid_file_proc(void) {
   snprintf(fn, sizeof(fn), "%s/%s.pid", PIDDIR,
            daemon_pid_file_ident ? daemon_pid_file_ident : "unknown");
 #endif
-
+#else
+#ifdef HAVE_ASPRINTF
+  static char *fn = NULL;
+  asprintf(&fn, "/var/run/shairport-sync/%s.pid", daemon_pid_file_ident ? daemon_pid_file_ident : "unknown");
+#else
+  static char fn[8192];
+  snprintf(fn, sizeof(fn), "/var/run/shairport-sync/%s.pid",
+           daemon_pid_file_ident ? daemon_pid_file_ident : "unknown");
+#endif
+#endif
   return fn;
 }
-#endif
 
 void exit_function() {
   if (config.cfg)
@@ -1005,11 +1013,10 @@ int main(int argc, char **argv) {
     return 1;
   }
 
-#if USE_CUSTOM_PID_DIR
-  debug(1, "Locating custom pid dir at \"%s\"", PIDDIR);
-  /* Point to a function to help locate where the PID file will go */
+  // Point to a function to help locate where the PID file will go
+  // We always use this function because the default location
+  // is unsatisfactory. By default we want to use /var/run/shairport-sync/.
   daemon_pid_file_proc = pid_file_proc;
-#endif
 
   /* Set indentification string for the daemon for both syslog and PID file */
   daemon_pid_file_ident = daemon_log_ident = daemon_ident_from_argv0(argv[0]);