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-rw-r--r--util-linux/Config.in20
-rw-r--r--util-linux/dmesg.c23
2 files changed, 40 insertions, 3 deletions
diff --git a/util-linux/Config.in b/util-linux/Config.in
index 501ed6bfc..65d670824 100644
--- a/util-linux/Config.in
+++ b/util-linux/Config.in
@@ -17,6 +17,26 @@ config CONFIG_DMESG
are also logged to the system console. Enable this option if you
wish to enable the 'dmesg' utility.
+config CONFIG_FEATURE_DMESG_PRETTY
+ bool "pretty dmesg output"
+ default y
+ depends on CONFIG_DMESG
+ help
+ If you wish to scrub the syslog level from the output, say 'Y' here.
+ The syslog level is a string prefixed to every line with the form "<#>".
+
+ With this option you will see:
+ # dmesg
+ Linux version 2.6.17.4 .....
+ BIOS-provided physical RAM map:
+ BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
+
+ Without this option you will see:
+ # dmesg
+ <5>Linux version 2.6.17.4 .....
+ <6>BIOS-provided physical RAM map:
+ <6> BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
+
config CONFIG_FBSET
bool "fbset"
default n
diff --git a/util-linux/dmesg.c b/util-linux/dmesg.c
index 2b59ee23d..34519dfd1 100644
--- a/util-linux/dmesg.c
+++ b/util-linux/dmesg.c
@@ -3,7 +3,8 @@
*
* dmesg - display/control kernel ring buffer.
*
- * Copyring 2006 Rob Landley <rob@landley.net>
+ * Copyright 2006 Rob Landley <rob@landley.net>
+ * Copyright 2006 Bernhard Fischer <rep.nop@aon.at>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
@@ -28,8 +29,24 @@ int dmesg_main(int argc, char *argv[])
buf = xmalloc(len);
if (0 > (len = klogctl(3 + (flags & 1), buf, len)))
bb_perror_msg_and_die("klogctl");
- write(1,buf,len);
- if (len && buf[len-1]!='\n') putchar('\n');
+
+ // Skip <#> at the start of lines, and make sure we end with a newline.
+
+ if (ENABLE_FEATURE_DMESG_PRETTY) {
+ int last = '\n';
+ int in;
+
+ for (in = 0; in<len;) {
+ if (last == '\n' && buf[in] == '<') in += 3;
+ else putchar(last = buf[in++]);
+ }
+ if (last != '\n') putchar('\n');
+ } else {
+ write(1,buf,len);
+ if (len && buf[len-1]!='\n') putchar('\n');
+ }
+
+ if (ENABLE_FEATURE_CLEAN_UP) free(buf);
}
return 0;