Update: Allow update of pidfile on the fly.

src/Makefile.am

@@ -6,6 +6,7 @@ bin_PROGRAMS = icecast
 
 noinst_HEADERS = \
     admin.h \
+    main.h \
     cfgfile.h \
     logging.h \
     sighandler.h \

src/cfgfile.c

@@ -42,6 +42,7 @@
 #include "fserve.h"
 #include "stats.h"
 #include "connection.h"
+#include "main.h"
 
 #define CATMODULE                       "CONFIG"
 #define CONFIG_DEFAULT_LOCATION         "Earth"
@@ -701,6 +702,7 @@ void config_reread_config(void)
         config_set_config(&new_config);
         config = config_get_config_unlocked();
         restart_logging(config);
+        main_config_reload(config);
         connection_reread_config(config);
         yp_recheck_config(config);
         fserve_recheck_mime_types(config);

src/main.c

@@ -60,6 +60,7 @@
 #include <pwd.h>
 #endif
 
+#include "main.h"
 #include "cfgfile.h"
 #include "util.h"
 #include "sighandler.h"
@@ -86,6 +87,8 @@
 static int background;
 static char *pidfile = NULL;
 
+static void pidfile_update(ice_config_t *config, int always_try);
+
 static void _fatal_error(const char *perr)
 {
 #ifdef WIN32_SERVICE
@@ -162,6 +165,12 @@ static void shutdown_subsystems(void)
     xslt_shutdown();
 }
 
+void main_config_reload(ice_config_t *config)
+{
+    ICECAST_LOG_DEBUG("Reloading configuration.");
+    pidfile_update(config, 0);
+}
+
 static int _parse_config_opts(int argc, char **argv, char *filename, size_t size)
 {
     int i = 1;
@@ -365,7 +374,7 @@ static void pidfile_update(ice_config_t *config, int always_try)
         fprintf(f, "%lld\n", (long long int)getpid());
         fclose(f);
 
-        ICECAST_LOG_INFO("pidfile %H updated.");
+        ICECAST_LOG_INFO("pidfile %H updated.", pidfile);
     }
 
     if (newpidfile != pidfile) {

src/main.h

+/* Icecast
+ *
+ * This program is distributed under the GNU General Public License, version 2.
+ * A copy of this license is included with this source.
+ *
+ * Copyright 2018,      Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
+ */
+
+#ifndef __MAIN_H__
+#define __MAIN_H__
+
+#include "cfgfile.h"
+
+void main_config_reload(ice_config_t *config);
+
+#endif