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Ignore errors from pcap_dispatch.
author
Emil Mikulic
<emikulic@gmail.com>
Thu, 1 Jan 2009 11:30:37 +0000
(22:30 +1100)
committer
Emil Mikulic
<emikulic@gmail.com>
Fri, 24 Apr 2009 11:40:23 +0000
(21:40 +1000)
This makes interface going down survivable on Linux.
Prompted by: Chris Franklin
cap.c
patch
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diff --git
a/cap.c
b/cap.c
index
b39b1c4
..
986bed5
100644
(file)
--- a/
cap.c
+++ b/
cap.c
@@
-244,8
+244,10
@@
cap_poll(fd_set *read_set
linkhdr->handler, /* callback func from decode.c */
NULL); /* user */
- if (ret < 0)
- errx(1, "pcap_dispatch(): %s", pcap_geterr(pcap));
+ if (ret < 0) {
+ warnx("pcap_dispatch(): %s", pcap_geterr(pcap));
+ return;
+ }
/* Despite count = -1, Linux will only dispatch one packet at a time. */
total += ret;