[Cluster-devel] [PATCH 1/5] fsck.gfs2: Log to syslog on start and exit
Andrew Price
anprice at redhat.com
Wed May 7 14:33:37 UTC 2014
In order to piece together the order in which fsck.gfs2 runs and
gfs2_edit savemeta were done it's useful to keep a log of the command
line options used and the fsck.gfs2 start and end times. Log these to
syslog.
Signed-off-by: Andrew Price <anprice at redhat.com>
---
gfs2/fsck/main.c | 35 +++++++++++++++++++++++++++++++++++
gfs2/man/fsck.gfs2.8 | 2 ++
2 files changed, 37 insertions(+)
diff --git a/gfs2/fsck/main.c b/gfs2/fsck/main.c
index 346e580..0031ec0 100644
--- a/gfs2/fsck/main.c
+++ b/gfs2/fsck/main.c
@@ -12,6 +12,7 @@
#include <libintl.h>
#include <locale.h>
#define _(String) gettext(String)
+#include <syslog.h>
#include "copyright.cf"
#include "libgfs2.h"
@@ -261,6 +262,36 @@ static int fsck_pass(const struct fsck_pass *p, struct gfs2_sbd *sdp)
return 0;
}
+static void exitlog(void)
+{
+ syslog(LOG_INFO, "exiting.");
+}
+
+static void startlog(int argc, char **argv)
+{
+ int i;
+ char *cmd, *p;
+ size_t len;
+
+ for (len = i = 0; i < argc; i++)
+ len += strlen(argv[i]);
+ len += argc; /* Add spaces and '\0' */
+
+ cmd = malloc(len);
+ if (cmd == NULL) {
+ perror(argv[0]);
+ exit(FSCK_ERROR);
+ }
+ p = cmd;
+ for (i = 0; i < argc; i++, p++) {
+ p = stpcpy(p, argv[i]);
+ *p = ' ';
+ }
+ *(--p) = '\0';
+ syslog(LOG_INFO, "started: %s", cmd);
+ free(cmd);
+}
+
int main(int argc, char **argv)
{
struct gfs2_sbd sb;
@@ -274,6 +305,10 @@ int main(int argc, char **argv)
setlocale(LC_ALL, "");
textdomain("gfs2-utils");
+ openlog("fsck.gfs2", LOG_CONS|LOG_PID, LOG_USER);
+ startlog(argc - 1, &argv[1]);
+ atexit(exitlog);
+
memset(sdp, 0, sizeof(*sdp));
if ((error = read_cmdline(argc, argv, &opts)))
diff --git a/gfs2/man/fsck.gfs2.8 b/gfs2/man/fsck.gfs2.8
index 3ecfbe3..56dcddc 100644
--- a/gfs2/man/fsck.gfs2.8
+++ b/gfs2/man/fsck.gfs2.8
@@ -35,6 +35,8 @@ computer. Therefore, fsck.gfs2 will always check the file system unless
the -p (preen) option is used, in which case it follows special rules
(see below).
+fsck.gfs2 will log to the system log on start and exit to aid debugging and
+administration.
.SH OPTIONS
.TP
\fB-a\fP
--
1.9.0
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