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It appears that the IRIX SIOCSNOOPLEN "ioctl", as used by "libpcap" to 

set the capture length on IRIX, may fail if the capture length supplied
is too large, rather than just truncating it.  Use MIN_PACKET_SIZE,
rather than WTAP_MAX_PACKET_SIZE, in our sample open.

Let's hope some *other* platform doesn't barf if the capture length is
too *small*....

(Sigh.  Would that "pcap_open_live()" accepted 0 as a capture size,
meaning "give me the whole packet".  Unfortunately, it doesn't, so IRIX
users may have to crank the capture size back in the capture dialog
box.)

svn path=/trunk/; revision=1239
This commit is contained in:
Guy Harris 1999-12-07 22:11:02 +00:00
parent 1b7ba3f862
commit 4c691e81ad
1 changed files with 5 additions and 2 deletions
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7
gtk/capture_dlg.c
View File

@ -1,7 +1,7 @@
/* capture_dlg.c
* Routines for packet capture windows
*
* $Id: capture_dlg.c,v 1.9 1999/11/06 02:05:32 guy Exp $
* $Id: capture_dlg.c,v 1.10 1999/12/07 22:11:02 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
@ -456,8 +456,11 @@ get_interface_list() {
/*
* Skip interfaces that we can't open with "libpcap".
* Open with the minimum packet size - it appears that the
* IRIX SIOCSNOOPLEN "ioctl" may fail if the capture length
* supplied is too large, rather than just truncating it.
*/
pch = pcap_open_live(ifr->ifr_name, WTAP_MAX_PACKET_SIZE, 0, 0, err_str);
pch = pcap_open_live(ifr->ifr_name, MIN_PACKET_SIZE, 0, 0, err_str);
if (pch == NULL)
goto next;
pcap_close(pch);