X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev.c;h=17eade221ec867a8420c56bc77f6b28c9c5f8a44;hp=6e7ac25175b8dc9450b9426cda9a266f538c2288;hb=3fd52a7694d94b57fc5a0dc380673a78683118fe;hpb=dbfc520c605dee3244dbbfd563e908901324689b

diff --git a/udev.c b/udev.c
index 6e7ac2517..17eade221 100644
--- a/udev.c
+++ b/udev.c
@@ -27,15 +27,37 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
+#include <ctype.h>
+#include <signal.h>
 
 #include "udev.h"
 #include "udev_version.h"
+#include "udev_dbus.h"
 #include "namedev.h"
 #include "udevdb.h"
 #include "libsysfs/libsysfs.h"
 
+/* global variables */
+char **main_argv;
+char **main_envp;
 
-static char *get_action(void)
+static void sig_handler(int signum)
+{
+	dbg("caught signal %d", signum);
+	switch (signum) {
+		case SIGINT:
+		case SIGTERM:
+		case SIGKILL:
+			sysbus_disconnect();
+			udevdb_exit();
+			exit(20 + signum);
+			break;
+		default:
+			dbg("unhandled signal");
+	}
+}
+
+static inline char *get_action(void)
 {
 	char *action;
 
@@ -43,22 +65,34 @@ static char *get_action(void)
 	return action;
 }
 
+static inline char *get_devpath(void)
+{
+	char *devpath;
+
+	devpath = getenv("DEVPATH");
+	return devpath;
+}
 
-static char *get_device(void)
+static inline char *get_seqnum(void)
 {
-	char *device;
+	char *seqnum;
 
-	device = getenv("DEVPATH");
-	return device;
+	seqnum = getenv("SEQNUM");
+	return seqnum;
 }
 
-int main(int argc, char *argv[])
+int main(int argc, char **argv, char **envp)
 {
 	char *action;
-	char *device;
+	char *devpath;
 	char *subsystem;
 	int retval = -EINVAL;
-	
+
+	main_argv = argv;
+	main_envp = envp;
+
+	dbg("version %s", UDEV_VERSION);
+
 	if (argc != 2) {
 		dbg ("unknown number of arguments");
 		goto exit;
@@ -66,17 +100,17 @@ int main(int argc, char *argv[])
 
 	subsystem = argv[1];
 
-	device = get_device();
-	if (!device) {
-		dbg ("no device?");
+	devpath = get_devpath();
+	if (!devpath) {
+		dbg ("no devpath?");
 		goto exit;
 	}
-	dbg("looking at %s", device);
+	dbg("looking at '%s'", devpath);
 
 	/* we only care about class devices and block stuff */
-	if (!strstr(device, "class") &&
-	    !strstr(device, "block")) {
-		dbg("not block or class");
+	if (!strstr(devpath, "class") &&
+	    !strstr(devpath, "block")) {
+		dbg("not a block or class device");
 		goto exit;
 	}
 
@@ -92,29 +126,43 @@ int main(int argc, char *argv[])
 		goto exit;
 	}
 
+	/* initialize our configuration */
+	udev_init_config();
+
+	/* connect to the system message bus */
+	sysbus_connect();
+
 	/* initialize udev database */
 	retval = udevdb_init(UDEVDB_DEFAULT);
 	if (retval != 0) {
-		dbg("Unable to initialize database.");
-		goto exit;
+		dbg("unable to initialize database");
+		goto exit_sysbus;
 	}
 
+	/* set up a default signal handler for now */
+	signal(SIGINT, sig_handler);
+	signal(SIGTERM, sig_handler);
+	signal(SIGKILL, sig_handler);
+
 	/* initialize the naming deamon */
 	namedev_init();
 
 	if (strcmp(action, "add") == 0)
-		retval = udev_add_device(device, argv[1]);
+		retval = udev_add_device(devpath, subsystem);
 
 	else if (strcmp(action, "remove") == 0)
-		retval = udev_remove_device(device, argv[1]);
+		retval = udev_remove_device(devpath, subsystem);
 
 	else {
-		dbg("Unknown action: %s", action);
+		dbg("unknown action '%s'", action);
 		retval = -EINVAL;
 	}
 	udevdb_exit();
 
-exit:	
+exit_sysbus:
+	/* disconnect from the system message bus */
+	sysbus_disconnect();
+
+exit:
 	return retval;
 }
-