implementing a somewhat proper signal handler

inc/utils.h

@@ -5,3 +5,5 @@ void uts_logger(rfc3161_context *ct, int priority, char *fmt, ...);
 void log_hex(rfc3161_context *ct, int priority, char *id,
              unsigned char *content, int content_length);
 int set_params(rfc3161_context *ct, char *conf_file);
+int g_uts_sig_up;
+int g_uts_sig;

src/lib/http.c

@@ -12,6 +12,7 @@
 #include <string.h>
 #include <stdbool.h>
 #include <sys/syslog.h>
+#include <unistd.h>
 #include "http.h"
 
 void log_request_debug(const struct mg_request_info *request_info,
@@ -147,7 +148,9 @@ int http_server_start(char *conffile, bool stdout_dbg) {
 
     // Wait until user hits "enter". Server is running in separate thread.
     // Navigating to http://localhost:8080 will invoke begin_request_handler().
-    getchar();
+    while ( g_uts_sig == 0 ){
+	sleep(1);
+    }
 
     // Stop the server.
     mg_stop(ctx);

src/lib/utils.c

@@ -30,6 +30,14 @@ CODE prioritynames[] = {{"alert", LOG_ALERT},
                         {"warning", LOG_WARNING},
                         {NULL, -1}};
 
+static void signal_handler_general(int sig_num) {
+    g_uts_sig = sig_num;
+}
+
+static void signal_handler_up(int sig_num) {
+    g_uts_sig_up = sig_num;
+}
+
 void skeleton_daemon() {
     pid_t pid;
 
@@ -48,10 +56,14 @@ void skeleton_daemon() {
     if (setsid() < 0)
         exit(EXIT_FAILURE);
 
+    g_uts_sig_up = 0;
+    g_uts_sig = 0;
     /* Catch, ignore and handle signals */
     // TODO: Implement a working signal handler */
+    signal(SIGTERM, signal_handler_general);
+    signal(SIGINT, signal_handler_general);
+    signal(SIGHUP, signal_handler_up);
     signal(SIGCHLD, SIG_IGN);
-    signal(SIGHUP, SIG_IGN);
 
     /* Fork off for the second time*/
     pid = fork();