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authorAndreas Baumann <mail@andreasbaumann.cc>2015-01-03 12:04:58 +0100
committerAndreas Baumann <mail@andreasbaumann.cc>2015-01-03 12:04:58 +0100
commit008d0be72b2f160382c6e880765e96b64a050c65 (patch)
tree36f48a98a3815a408e2ce1693dd182af90f80305 /release/src/router/busybox/dmesg.c
parent611becfb8726c60cb060368541ad98191d4532f5 (diff)
downloadtomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.gz
tomato-008d0be72b2f160382c6e880765e96b64a050c65.tar.bz2
imported original firmware WRT54GL_v4.30.11_11_US
Diffstat (limited to 'release/src/router/busybox/dmesg.c')
-rw-r--r--release/src/router/busybox/dmesg.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/release/src/router/busybox/dmesg.c b/release/src/router/busybox/dmesg.c
new file mode 100644
index 00000000..73de6d1a
--- /dev/null
+++ b/release/src/router/busybox/dmesg.c
@@ -0,0 +1,95 @@
+/* vi: set sw=4 ts=4: */
+/* dmesg.c -- Print out the contents of the kernel ring buffer
+ * Created: Sat Oct 9 16:19:47 1993
+ * Revised: Thu Oct 28 21:52:17 1993 by faith@cs.unc.edu
+ * Copyright 1993 Theodore Ts'o (tytso@athena.mit.edu)
+ * This program comes with ABSOLUTELY NO WARRANTY.
+ * Modifications by Rick Sladkey (jrs@world.std.com)
+ * Larger buffersize 3 June 1998 by Nicolai Langfeldt, based on a patch
+ * by Peeter Joot. This was also suggested by John Hudson.
+ * 1999-02-22 Arkadiusz Mi¶kiewicz <misiek@misiek.eu.org>
+ * - added Native Language Support
+ *
+ * from util-linux -- adapted for busybox by
+ * Erik Andersen <andersee@debian.org>. I ripped out Native Language
+ * Support, replaced getopt, added some gotos for redundant stuff.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#if __GNU_LIBRARY__ < 5
+# ifdef __alpha__
+# define klogctl syslog
+# endif
+#else
+# include <sys/klog.h>
+#endif
+
+#include "busybox.h"
+
+int dmesg_main(int argc, char **argv)
+{
+ char *buf;
+ int c;
+ int bufsize = 8196;
+ int i;
+ int n;
+ int level = 0;
+ int lastc;
+ int cmd = 3;
+
+ while ((c = getopt(argc, argv, "cn:s:")) != EOF) {
+ switch (c) {
+ case 'c':
+ cmd = 4;
+ break;
+ case 'n':
+ cmd = 8;
+ if (optarg == NULL)
+ show_usage();
+ level = atoi(optarg);
+ break;
+ case 's':
+ if (optarg == NULL)
+ show_usage();
+ bufsize = atoi(optarg);
+ break;
+ default:
+ show_usage();
+ }
+ }
+
+ if (optind < argc) {
+ show_usage();
+ }
+
+ if (cmd == 8) {
+ if (klogctl(cmd, NULL, level) < 0)
+ perror_msg_and_die("klogctl");
+ return EXIT_SUCCESS;
+ }
+
+ if (bufsize < 4096)
+ bufsize = 4096;
+ buf = (char *) xmalloc(bufsize);
+ if ((n = klogctl(cmd, buf, bufsize)) < 0)
+ perror_msg_and_die("klogctl");
+
+ lastc = '\n';
+ for (i = 0; i < n; i++) {
+ if (lastc == '\n' && buf[i] == '<') {
+ i++;
+ while (buf[i] >= '0' && buf[i] <= '9')
+ i++;
+ if (buf[i] == '>')
+ i++;
+ }
+ lastc = buf[i];
+ putchar(lastc);
+ }
+ if (lastc != '\n')
+ putchar('\n');
+ return EXIT_SUCCESS;
+}