Do some signal handling

main.c

@@ -8,6 +8,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <fcntl.h>
+#include <signal.h>
 
 #include <linux/limits.h>
 
@@ -186,6 +187,36 @@ static int connection_handler(void * cls,
     connection, MHD_HTTP_INTERNAL_SERVER_ERROR, error500Response);
 }
 
+// signal handler for SIGTERM, SIGINT, etc.
+// sets the flag for a clean shutdown
+void sig_shutdown_handler(int sig) {
+  LOG(LVL_DEBUG, "Handling signal: %i", sig);
+  running = 0;
+}
+
+void init_signal_handlers(void) {
+  struct sigaction sa;
+  sa.sa_handler = sig_shutdown_handler;
+  sigemptyset(&sa.sa_mask);
+  sa.sa_flags = 0;
+  sa.sa_restorer = NULL;
+
+  if(sigaction(SIGTERM, &sa, NULL) == -1) {
+    LOG(LVL_ERR, "sigaction [SIGTERM] failed: %s", strerror(errno));
+  }
+
+  if(sigaction(SIGINT, &sa, NULL) == -1) {
+    LOG(LVL_ERR, "sigaction [SIGINT] failed: %s", strerror(errno));
+  }
+
+  sa.sa_handler = SIG_IGN;
+
+  if(sigaction(SIGPIPE, &sa, NULL) == -1) {
+    LOG(LVL_ERR, "sigaction [SIGPIPE] failed: %s", strerror(errno));
+  }
+
+}
+
 int main(int argc, char ** argv) {
   struct MHD_Daemon *d;
   struct stat sBuf;
@@ -251,6 +282,9 @@ int main(int argc, char ** argv) {
   }
 #endif
 
+  // setup the signal handlers
+  init_signal_handlers();
+
   // create the static response for error pages
   error403Response = MHD_create_response_from_data(
       strlen(ERROR_403),
@@ -289,7 +323,7 @@ int main(int argc, char ** argv) {
   }
 
   while(running) {
-    getc(stdin);
+    sleep(60);
   }
 
   LOG(LVL_INFO, "Shutting down...");
@@ -304,6 +338,7 @@ int main(int argc, char ** argv) {
   magic_close(magicCookie);
 #endif
 
+  LOG(LVL_INFO, "Thanks for using fileshare.");
   logger_shutdown();
   return EXIT_SUCCESS;
 }