Add timestamp from core

The server has been attributing a timestamp to a crash report based on the
time the report is received.  This may differ greatly from the actual time
of the issue.  This is easily fixed with a stat of the corefile.

Unfortunately, the same can't as easily be done for getting the os-build,
which may also be incorrectly attributed on the client side based on the
/etc/os-release file's contents at the time of a crash's processing by
corewatcher, as opposed to at the actual time of the crash.

Tracking the combination of the reported os_build, core time, and receiving
time should give us more rich reporting and ability to discern problems
between different classes of users (eg: more/less network connectedness,
more/less aggressive adoption of updates).

Signed-off-by: Tim Pepper <timothy.c.pepper@linux.intel.com>

1 files changed, 15 insertions, 3 deletions

diff --git a/src/coredump.c b/src/coredump.c
index b967069..76d20de 100644
--- a/src/coredump.c
+++ b/src/coredump.c
@@ -321,16 +321,26 @@ static struct oops *extract_core(char *fullpath, char *appfile)
 {
 	struct oops *oops = NULL;
 	int ret = 0;
-	char *command = NULL, *h1 = NULL, *c1 = NULL, *c2 = NULL, *line = NULL, *text = NULL, *at = NULL;
+	char *command = NULL, *h1 = NULL, *c1 = NULL, *c2 = NULL, *line = NULL;
+	char *text = NULL, *at = NULL, *coretime = NULL;
 	char *m1 = NULL, *m2 = NULL;
 	FILE *file = NULL;
 	char *badchar = NULL;
 	char *release = get_release();
 	int parsing_maps = 0;
+	struct stat stat_buf;
 
 	if (asprintf(&command, "LANG=C gdb --batch -f %s %s -x /etc/corewatcher/gdb.command 2> /dev/null", appfile, fullpath) == -1)
 		return NULL;
 
+	if (stat(fullpath, &stat_buf) != -1) {
+		coretime = ctime(&stat_buf.st_mtime);
+	}
+	if (coretime == NULL) {
+		if (asprintf(&coretime, "Unknown\n") == -1)
+			return NULL;
+	}
+
 	if ((at = wrapper_scan(command))) {
 		free(appfile);
 		appfile = at;
@@ -338,9 +348,11 @@ static struct oops *extract_core(char *fullpath, char *appfile)
 
 	ret = asprintf(&h1,
 		       "cmdline: %s\n"
-		       "release: %s\n",
+		       "release: %s\n"
+		       "time: %s",
 		       appfile,
-		       release);
+		       release,
+		       coretime);
 	free(release);
 	if (ret == -1)
 		h1 = strdup("Unknown");