X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevd.c;h=a8328bbb81a60d2a093089d6490ddb8f7e58577b;hp=7ae7a5b232c7bd1264baa35e5ab091e6d927ac0b;hb=1e26698933e89c11dc6806d8bd37fd4386814239;hpb=c2cf40123f836b0f24da2604aba177b86b93823d

diff --git a/udevd.c b/udevd.c
index 7ae7a5b23..a8328bbb8 100644
--- a/udevd.c
+++ b/udevd.c
@@ -450,6 +450,7 @@ static void reap_sigchilds(void)
 static void user_sighandler(void)
 {
 	int sig;
+
 	while(1) {
 		int rc = read(pipefds[0], &sig, sizeof(sig));
 		if (rc < 0)
@@ -500,6 +501,7 @@ int main(int argc, char *argv[], char *envp[])
 	int fd;
 	struct sigaction act;
 	fd_set readfds;
+	const char *udevd_expected_seqnum;
 
 	logging_init("udevd");
 	dbg("version %s", UDEV_VERSION);
@@ -533,15 +535,14 @@ int main(int argc, char *argv[], char *envp[])
 
 	/* Set fds to dev/null */
 	fd = open( "/dev/null", O_RDWR );
-	if ( fd < 0 ) {
+	if (fd >= 0)  {
+		dup2(fd, 0);
+		dup2(fd, 1);
+		dup2(fd, 2);
+		if (fd > 2)
+			close(fd);
+	} else
 		dbg("error opening /dev/null %s", strerror(errno));
-		goto exit;
-	}
-	dup2(fd, 0);
-	dup2(fd, 1);
-	dup2(fd, 2);
-	if (fd > 2) 
-		close(fd);
 
 	/* become session leader */
 	setsid();
@@ -559,10 +560,8 @@ int main(int argc, char *argv[], char *envp[])
 		goto exit;
 	}
 	retval = fcntl(pipefds[0], F_SETFD, FD_CLOEXEC);
-	if (retval < 0) {
+	if (retval < 0)
 		dbg("error fcntl on read pipe: %s", strerror(errno));
-		goto exit;
-	}
 
 	retval = fcntl(pipefds[1], F_SETFL, O_NONBLOCK);
 	if (retval < 0) {
@@ -570,10 +569,8 @@ int main(int argc, char *argv[], char *envp[])
 		goto exit;
 	}
 	retval = fcntl(pipefds[1], F_SETFD, FD_CLOEXEC);
-	if (retval < 0) {
+	if (retval < 0)
 		dbg("error fcntl on write pipe: %s", strerror(errno));
-		goto exit;
-	}
 
 	/* set signal handlers */
 	act.sa_handler = (void (*) (int))sig_handler;
@@ -586,7 +583,7 @@ int main(int argc, char *argv[], char *envp[])
 
 	if (init_udevsend_socket() < 0) {
 		if (errno == EADDRINUSE)
-			dbg("another udevd is running, exit");
+			dbg("another udevd running, exit");
 		else
 			dbg("error initialising udevsend socket: %s", strerror(errno));
 
@@ -600,7 +597,14 @@ int main(int argc, char *argv[], char *envp[])
 	else
 		udev_bin = UDEV_BIN;
 
-	/* handle special startup timeout*/
+	/* possible set of expected_seqnum number */
+	udevd_expected_seqnum = getenv("UDEVD_EXPECTED_SEQNUM");
+	if (udevd_expected_seqnum != NULL) {
+		expected_seqnum = strtoull(udevd_expected_seqnum, NULL, 10);
+		dbg("initialize expected_seqnum to %llu", expected_seqnum);
+	}
+
+	/* get current time to provide shorter startup timeout */
 	sysinfo(&info);
 	startup_time = info.uptime;