*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
+
+//usage:#define dmesg_trivial_usage
+//usage: "[-c] [-n LEVEL] [-s SIZE]"
+//usage:#define dmesg_full_usage "\n\n"
+//usage: "Print or control the kernel ring buffer\n"
+//usage: "\n -c Clear ring buffer after printing"
+//usage: "\n -n LEVEL Set console logging level"
+//usage: "\n -s SIZE Buffer size"
+
#include <sys/klog.h>
#include "libbb.h"
if (len == 0)
return EXIT_SUCCESS;
- /* Skip <#> at the start of lines, and make sure we end with a newline */
if (ENABLE_FEATURE_DMESG_PRETTY) {
int last = '\n';
int in = 0;
- do {
- if (last == '\n' && buf[in] == '<')
- in += 3;
- else {
+ /* Skip <[0-9]+> at the start of lines */
+ while (1) {
+ if (last == '\n' && buf[in] == '<') {
+ while (buf[in++] != '>' && in < len)
+ ;
+ } else {
last = buf[in++];
- bb_putchar(last);
+ putchar(last);
}
- } while (in < len);
+ if (in >= len)
+ break;
+ }
+ /* Make sure we end with a newline */
if (last != '\n')
bb_putchar('\n');
} else {