ubase

commit 76614ae86b9b8a3d0fa3e75f8d1ada3df33d7d66
parent f6cf690aa212922c4c1b97027d16728d8a8ee99d
Author: sin <sin@2f30.org>
Date:   Wed, 14 Aug 2013 14:34:57 +0100

Support -C for dmesg(1)

Diffstat:
M
dmesg.c
 | 
7
++++++-

1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/dmesg.c b/dmesg.c
@@ -11,13 +11,14 @@ static int dmesg_show(int fd, const void *buf, size_t n);
 
 enum {
 	SYSLOG_ACTION_READ_ALL = 3,
+	SYSLOG_ACTION_CLEAR = 5,
 	SYSLOG_ACTION_SIZE_BUFFER = 10
 };
 
 static void
 usage(void)
 {
-	eprintf("usage: %s\n", argv0);
+	eprintf("usage: [-C] %s\n", argv0);
 }
 
 int
@@ -27,6 +28,10 @@ main(int argc, char *argv[])
 	char *buf;
 
 	ARGBEGIN {
+	case 'C':
+		if (klogctl(SYSLOG_ACTION_CLEAR, NULL, 0) < 0)
+			eprintf("klogctl:");
+		return 0;
 	default:
 		usage();
 	} ARGEND;