Daemonize and allow the build of .debug and .release versions

1 files changed, 18 insertions, 0 deletions

diff --git a/main.c b/main.c
index 8eb6f40..906be15 100644
--- a/main.c
+++ b/main.c
@@ -80,6 +80,22 @@ static void * answer_request(size_t new_socket) {
         return NULL;
 }
 
+
+int become_daemon(const char * name) {
+        if(fork()) {
+                exit(EXIT_SUCCESS);
+        } else {
+                setsid();
+                if(fork()) {
+                        exit(EXIT_SUCCESS);
+                } else {
+                        syslog(0, "daemon '%s' is running with pid %d", name, getpid());
+                        return EXIT_SUCCESS;
+                }
+        }
+}
+
+
 static int serve(int server_fd)
 {
         struct sockaddr_in address;
@@ -127,6 +143,8 @@ int main(const int argc, char const * argv[]) {
         ? err(errno, NULL)
         : listen(server_fd, SOMAXCONN)
         ? err(errno, NULL)
+        : become_daemon(argv[0])
+        ? err(errno, NULL)
         : serve(server_fd)
         ? err(errno, NULL)
         : exit(EXIT_SUCCESS)