[PATCH] dmesg: add -r option to print raw format even when FEATURE_DMESG_PRETTY is enabled

[Peter Korsgaard]

Similar to the "big" util-linux version. For !DMESG_PRETTY, the option is accepted
(but ignored) as well, for compatibility reasons.

Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 util-linux/dmesg.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
index 81ba1c9..e543446 100644
--- a/util-linux/dmesg.c
+++ b/util-linux/dmesg.c
@@ -16,6 +16,7 @@
 //usage:     "\n	-c		Clear ring buffer after printing"
 //usage:     "\n	-n LEVEL	Set console logging level"
 //usage:     "\n	-s SIZE		Buffer size"
+//usage:     "\n	-r		Print raw message buffer"
 
 #include <sys/klog.h>
 #include "libbb.h"
@@ -29,11 +30,12 @@ int dmesg_main(int argc UNUSED_PARAM, char **argv)
 	enum {
 		OPT_c = 1 << 0,
 		OPT_s = 1 << 1,
-		OPT_n = 1 << 2
+		OPT_n = 1 << 2,
+		OPT_r = 1 << 3
 	};
 
 	opt_complementary = "s+:n+"; /* numeric */
-	opts = getopt32(argv, "cs:n:", &len, &level);
+	opts = getopt32(argv, "cs:n:r", &len, &level);
 	if (opts & OPT_n) {
 		if (klogctl(8, NULL, (long) level))
 			bb_perror_msg_and_die("klogctl");
@@ -55,7 +57,7 @@ int dmesg_main(int argc UNUSED_PARAM, char **argv)
 		return EXIT_SUCCESS;
 
 
-	if (ENABLE_FEATURE_DMESG_PRETTY) {
+	if (ENABLE_FEATURE_DMESG_PRETTY && !(opts & OPT_r)) {
 		int last = '\n';
 		int in = 0;
 
-- 
2.1.4