X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/9c96da2b288cebb53388ad4e30adbe9b87f67d91..7f88fa1553a361d5d70a87eeeb7a37e1f3476cc8:/keyd.c

diff --git a/keyd.c b/keyd.c
index 33af8ea..c802264 100644
--- a/keyd.c
+++ b/keyd.c
@@ -2,11 +2,13 @@
  * keyd.c - key retrieval daemon
  *
  * Jonathan McDowell <noodles@earth.li>
- * 
+ *
  * Copyright 2004 Project Purple
  */
 
+#include <errno.h>
 #include <fcntl.h>
+#include <getopt.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -27,6 +29,32 @@
 #include "onak-conf.h"
 #include "parsekey.h"
 
+void daemonize(void)
+{
+	pid_t pid;
+
+	pid = fork();
+
+	if (pid < 0) {
+		logthing(LOGTHING_CRITICAL,
+			"Failed to fork into background: %d (%s)",
+			errno,
+			strerror(errno));
+		exit(EXIT_FAILURE);
+	} else if (pid > 0) {
+		logthing(LOGTHING_INFO, "Backgrounded as pid %d.", pid);
+		exit(EXIT_SUCCESS);
+	}
+
+	pid = setsid();
+
+	freopen("/dev/null", "r", stdin);
+	freopen("/dev/null", "w", stdout);
+	freopen("/dev/null", "w", stderr);
+
+	return;
+}
+
 void iteratefunc(void *ctx, struct openpgp_publickey *key)
 {
 	struct openpgp_packet_list *packets = NULL;
@@ -341,9 +369,30 @@ int main(int argc, char *argv[])
 	int fd = -1;
 	fd_set rfds;
 	char sockname[1024];
+	char *configfile = NULL;
+	bool foreground = false;
+	int optchar;
+
+	while ((optchar = getopt(argc, argv, "c:f")) != -1 ) {
+		switch (optchar) {
+		case 'c':
+			configfile = strdup(optarg);
+			break;
+		case 'f':
+			foreground = true;
+			break;
+		}
+	}
 
-	readconfig(NULL);
+	readconfig(configfile);
+	free(configfile);
+	configfile = NULL;
 	initlogthing("keyd", config.logfile);
+	config.use_keyd = false;
+
+	if (!foreground) {
+		daemonize();
+	}
 
 	catchsignals();
 	
@@ -369,6 +418,6 @@ int main(int argc, char *argv[])
 
 	cleanuplogthing();
 	cleanupconfig();
-	
+
 	return(EXIT_SUCCESS);
 }