Use gdb to inspect the pcap_main_t. In particular, determine
vec_len(pm->pcap_data) [“(gdb) vl(pm->pcap_data)”] and pm->n_pcap_data_written.
For reasonable N pcap_write(...) is known to work.
D.
From: vpp-dev@lists.fd.io On Behalf Of aihua1...@163.com
Sent: Sunday, October 16, 2022 11:23 PM
To: vpp-dev@lists.fd.io
Subject: [vpp-dev] pcap_write error: bad address #pcap
dear all:
pcap_write,use type int n;
if n is negative。 int n = vec_len (pm->pcap_data) -
pm->n_pcap_data_written;
write func will failed，errno = 14.
n = write (pm->file_descriptor,
vec_elt_at_index (pm->pcap_data, pm->n_pcap_data_written),
n);
int cast to size_t may case some overflow？
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#22041): https://lists.fd.io/g/vpp-dev/message/22041
Mute This Topic: https://lists.fd.io/mt/94377467/21656
Mute #pcap:https://lists.fd.io/g/vpp-dev/mutehashtag/pcap
Group Owner: vpp-dev+ow...@lists.fd.io
Unsubscribe: https://lists.fd.io/g/vpp-dev/leave/1480452/21656/631435203/xyzzy
[arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
