X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/f42ab5050f79833030453b21d69f4f3be9fcd0d0..7f88fa1553a361d5d70a87eeeb7a37e1f3476cc8:/keyd.c

diff --git a/keyd.c b/keyd.c
index f8f5d4a..c802264 100644
--- a/keyd.c
+++ b/keyd.c
@@ -2,14 +2,17 @@
  * 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>
+#include <sys/select.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <sys/un.h>
@@ -26,13 +29,39 @@
 #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;
 	struct openpgp_packet_list *list_end = NULL;
 	struct buffer_ctx           storebuf;
 	int                         ret = 0;
-	int                         fd = (int) ctx;
+	int                         *fd = (int *) ctx;
 
 	if (key != NULL) {
 		storebuf.offset = 0;
@@ -52,10 +81,10 @@ void iteratefunc(void *ctx, struct openpgp_publickey *key)
 		logthing(LOGTHING_TRACE,
 				"Sending %d bytes.",
 				storebuf.offset);
-		ret = write(fd, &storebuf.offset,
+		ret = write(*fd, &storebuf.offset,
 			sizeof(storebuf.offset));
 		if (ret != 0) {
-			write(fd, storebuf.buffer,
+			write(*fd, storebuf.buffer,
 				storebuf.offset);
 		}
 
@@ -137,6 +166,7 @@ int sock_do(int fd)
 				logthing(LOGTHING_INFO,
 						"Fetching 0x%llX, result: %d",
 						keyid,
+						config.dbbackend->
 						fetch_key(keyid, &key, false));
 				if (key != NULL) {
 					storebuf.size = 8192;
@@ -184,6 +214,7 @@ int sock_do(int fd)
 				logthing(LOGTHING_INFO,
 						"Fetching %s, result: %d",
 						search,
+						config.dbbackend->
 						fetch_key_text(search, &key));
 				if (key != NULL) {
 					storebuf.size = 8192;
@@ -244,7 +275,7 @@ int sock_do(int fd)
 						&packets,
 						0);
 				parse_keys(packets, &key);
-				store_key(key, false, false);
+				config.dbbackend->store_key(key, false, false);
 				free_packet_list(packets);
 				packets = NULL;
 				free_publickey(key);
@@ -265,7 +296,8 @@ int sock_do(int fd)
 				logthing(LOGTHING_INFO,
 						"Deleting 0x%llX, result: %d",
 						keyid,
-						delete_key(keyid, false));
+						config.dbbackend->delete_key(
+							keyid, false));
 			}
 			break;
 		case KEYD_CMD_GETFULLKEYID:
@@ -276,14 +308,15 @@ int sock_do(int fd)
 				ret = 1;
 			}
 			if (ret == 0) {
-				keyid = getfullkeyid(keyid);
+				keyid = config.dbbackend->getfullkeyid(keyid);
 				write(fd, &keyid, sizeof(keyid));
 			}
 			break;
 		case KEYD_CMD_KEYITER:
 			cmd = KEYD_REPLY_OK;
 			write(fd, &cmd, sizeof(cmd));
-			iterate_keys(iteratefunc, (void *) fd);
+			config.dbbackend->iterate_keys(iteratefunc,
+					&fd);
 			bytes = 0;
 			write(fd, &bytes, sizeof(bytes));
 			break;
@@ -306,7 +339,8 @@ int sock_do(int fd)
 
 int sock_close(int fd)
 {
-	return shutdown(fd, SHUT_RDWR);
+	shutdown(fd, SHUT_RDWR);
+	return close(fd);
 }
 
 int sock_accept(int fd)
@@ -335,9 +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();
 	
@@ -348,7 +403,7 @@ int main(int argc, char *argv[])
 		FD_ZERO(&rfds);
 		FD_SET(fd, &rfds);
 
-		initdb(false);
+		config.dbbackend->initdb(false);
 
 		logthing(LOGTHING_NOTICE, "Accepting connections.");
 		while (!cleanup() && select(fd + 1, &rfds, NULL, NULL, NULL) != -1) {
@@ -356,13 +411,13 @@ int main(int argc, char *argv[])
 			sock_accept(fd);
 			FD_SET(fd, &rfds);
 		}
-		cleanupdb();
+		config.dbbackend->cleanupdb();
 		sock_close(fd);
 		unlink(sockname);
 	}
 
 	cleanuplogthing();
 	cleanupconfig();
-	
+
 	return(EXIT_SUCCESS);
 }