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ctdb-common: Stop a pcap-related crash on error

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errbuf can't be NULL.  Might as well use it.

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
This commit is contained in:
Martin Schwenke 2022-08-09 13:49:42 +10:00 committed by Amitay Isaacs
parent 8b54587b1a
commit 40380a8042
1 changed files with 5 additions and 2 deletions
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7
ctdb/common/system_socket.c
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@ -969,11 +969,14 @@ int ctdb_sys_read_tcp_packet(int s, void *private_data,
int ctdb_sys_open_capture_socket(const char *iface, void **private_data)
{
char errbuf[PCAP_ERRBUF_SIZE];
pcap_t *pt;
pt=pcap_open_live(iface, 100, 0, 0, NULL);
pt = pcap_open_live(iface, 100, 0, 0, errbuf);
if (pt == NULL) {
DBG_ERR("Failed to open capture device %s\n", iface);
DBG_ERR("Failed to open pcap capture device %s (%s)\n",
iface,
errbuf);
return -1;
}
*((pcap_t **)private_data) = pt;