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authorGuy Harris <guy@alum.mit.edu>2016-10-21 19:18:15 -0700
committerGuy Harris <guy@alum.mit.edu>2016-10-22 02:27:32 +0000
commit10ca4c7527122efde0300205deaa6c0143f07219 (patch)
tree5352128043afff3b586c4a314ab2d240aec36f6a /wiretap/commview.c
parent49cf42c571f3f94632957371ccd99533e71764ff (diff)
downloadwireshark-10ca4c7527122efde0300205deaa6c0143f07219.tar.gz
More checks for localtime() and gmtime() returning NULL.
And some comments in the case where we're converting the result of time() - if your machine's idea of time predates January 1, 1970, 00:00:00 UTC, it'll crash on Windows, but that's not a case where a *file* can cause the problem due either to a bad file time stamp or bad time stamps in the file. Change-Id: I837a438e4b875dd8c4f3ec2137df7a16ee4e9498 Reviewed-on: https://code.wireshark.org/review/18369 Reviewed-by: Guy Harris <guy@alum.mit.edu>
Diffstat (limited to 'wiretap/commview.c')
-rw-r--r--wiretap/commview.c27
1 files changed, 20 insertions, 7 deletions
diff --git a/wiretap/commview.c b/wiretap/commview.c
index f44dbe5578..e6dbd8101f 100644
--- a/wiretap/commview.c
+++ b/wiretap/commview.c
@@ -422,13 +422,26 @@ static gboolean commview_dump(wtap_dumper *wdh,
cv_hdr.version = 0;
tm = localtime(&phdr->ts.secs);
- cv_hdr.year = tm->tm_year + 1900;
- cv_hdr.month = tm->tm_mon + 1;
- cv_hdr.day = tm->tm_mday;
- cv_hdr.hours = tm->tm_hour;
- cv_hdr.minutes = tm->tm_min;
- cv_hdr.seconds = tm->tm_sec;
- cv_hdr.usecs = GUINT32_TO_LE(phdr->ts.nsecs / 1000);
+ if (tm != NULL) {
+ cv_hdr.year = tm->tm_year + 1900;
+ cv_hdr.month = tm->tm_mon + 1;
+ cv_hdr.day = tm->tm_mday;
+ cv_hdr.hours = tm->tm_hour;
+ cv_hdr.minutes = tm->tm_min;
+ cv_hdr.seconds = tm->tm_sec;
+ cv_hdr.usecs = GUINT32_TO_LE(phdr->ts.nsecs / 1000);
+ } else {
+ /*
+ * Second before the Epoch.
+ */
+ cv_hdr.year = 1969;
+ cv_hdr.month = 12;
+ cv_hdr.day = 31;
+ cv_hdr.hours = 23;
+ cv_hdr.minutes = 59;
+ cv_hdr.seconds = 59;
+ cv_hdr.usecs = 0;
+ }
switch(phdr->pkt_encap) {