udevd: add --verbose option to log also to stdout

3 files changed, 29 insertions, 3 deletions

diff --git a/udevd.8 b/udevd.8
index bb6d27fb..aef20902 100644
--- a/udevd.8
+++ b/udevd.8
@@ -14,7 +14,7 @@
 udevd \- event managing daemon
 .SH "SYNOPSIS"
 .HP 6
-\fBudevd\fR [\fB\-\-daemon\fR] [\fB\-\-help\fR]
+\fBudevd\fR [\fB\-\-daemon\fR] [\fB\-\-verbose\fR] [\fB\-\-help\fR]
 .HP 20
 \fBudevcontrol \fR\fB\fIcommand\fR\fR
 .SH "DESCRIPTION"
@@ -25,6 +25,9 @@ udevd listens to kernel uevents and passes the incoming events to udev. It ensur
 \fB\-\-daemon\fR
 Detach and run in the background.
 .TP 3n
+\fB\-\-verbose\fR
+Print log messages to stdout.
+.TP 3n
 \fB\-\-help\fR
 Print usage.
 .TP 3n
diff --git a/udevd.c b/udevd.c
index df6e2228..eb632bd8 100644
--- a/udevd.c
+++ b/udevd.c
@@ -45,6 +45,8 @@
 #include "udevd.h"
 #include "udev_selinux.h"
 
+static int verbose;
+
 static struct udev_rules rules;
 static int udevd_sock = -1;
 static int uevent_netlink_sock = -1;
@@ -76,6 +78,13 @@ void log_message(int priority, const char *format, ...)
 	va_start(args, format);
 	vsyslog(priority, format, args);
 	va_end(args);
+
+	if (verbose) {
+		va_start(args, format);
+		vprintf(format, args);
+		va_end(args);
+		printf("\n");
+	}
 }
 
 #endif
@@ -921,6 +930,7 @@ int main(int argc, char *argv[], char *envp[])
 	int option;
 	static const struct option options[] = {
 		{ "daemon", 0, NULL, 'd' },
+		{ "verbose", 0, NULL, 'v' },
 		{ "help", 0, NULL, 'h' },
 		{}
 	};
@@ -942,8 +952,13 @@ int main(int argc, char *argv[], char *envp[])
 		case 'd':
 			daemonize = 1;
 			break;
+		case 'v':
+			verbose = 1;
+			if (udev_log_priority < LOG_INFO)
+				udev_log_priority = LOG_INFO;
+			break;
 		case 'h':
-			printf("Usage: udevd [--help] [--daemon]\n");
+			printf("Usage: udevd [--help] [--daemon] [--verbose]\n");
 			goto exit;
 		default:
 			goto exit;
@@ -1006,7 +1021,8 @@ int main(int argc, char *argv[], char *envp[])
 	fd = open("/dev/null", O_RDWR);
 	if (fd >= 0) {
 		dup2(fd, STDIN_FILENO);
-		dup2(fd, STDOUT_FILENO);
+		if (!verbose)
+			dup2(fd, STDOUT_FILENO);
 		dup2(fd, STDERR_FILENO);
 		if (fd > STDERR_FILENO)
 			close(fd);
diff --git a/udevd.xml b/udevd.xml
index f0682ed0..cc2a1bcd 100644
--- a/udevd.xml
+++ b/udevd.xml
@@ -26,6 +26,7 @@
         <cmdsynopsis>
           <command>udevd</command>
           <arg><option>--daemon</option></arg>
+          <arg><option>--verbose</option></arg>
           <arg><option>--help</option></arg>
         </cmdsynopsis>
         <cmdsynopsis>
@@ -48,6 +49,12 @@
             </listitem>
           </varlistentry>
           <varlistentry>
+            <term><option>--verbose</option></term>
+            <listitem>
+              <para>Print log messages to stdout.</para>
+            </listitem>
+          </varlistentry>
+          <varlistentry>
             <term><option>--help</option></term>
             <listitem>
               <para>Print usage.</para>