1 files changed, 10 insertions, 5 deletions

diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
index 9e834ffd3..b399ab247 100644
--- a/util-linux/dmesg.c
+++ b/util-linux/dmesg.c
@@ -6,7 +6,7 @@
  * Copyright 2006 Rob Landley <rob@landley.net>
  * Copyright 2006 Bernhard Fischer <rep.nop@aon.at>
  *
- * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
 #include <sys/klog.h>
@@ -18,17 +18,22 @@ int dmesg_main(int argc ATTRIBUTE_UNUSED, char **argv)
         int len;
         char *buf;
         char *size, *level;
-        int flags = getopt32(argv, "cs:n:", &size, &level);
+        unsigned flags = getopt32(argv, "cs:n:", &size, &level);
+        enum {
+                OPT_c = 1<<0,
+                OPT_s = 1<<1,
+                OPT_n = 1<<2
+        };
 
-        if (flags & 4) {
+        if (flags & OPT_n) {
                 if (klogctl(8, NULL, xatoul_range(level, 0, 10)))
                         bb_perror_msg_and_die("klogctl");
                 return EXIT_SUCCESS;
         }
 
-        len = (flags & 2) ? xatoul_range(size, 2, INT_MAX) : 16384;
+        len = (flags & OPT_s) ? xatoul_range(size, 2, INT_MAX) : 16384;
         buf = xmalloc(len);
-        len = klogctl(3 + (flags & 1), buf, len);
+        len = klogctl(3 + (flags & OPT_c), buf, len);
         if (len < 0)
                 bb_perror_msg_and_die("klogctl");
         if (len == 0)