pcap_lookupdev - find the default device on which to capture
#include <pcap/pcap.h> char errbuf[PCAP_ERRBUF_SIZE]; [DEPRECATED] char *pcap_lookupdev(char *errbuf);
PCAP_LOOKUPDEV(3pcap) PCAP_LOOKUPDEV(3pcap)
NAME
pcap_lookupdev - find the default device on which to capture
SYNOPSIS
#include <pcap/pcap.h>
char errbuf[PCAP_ERRBUF_SIZE];
[DEPRECATED] char *pcap_lookupdev(char *errbuf);
DESCRIPTION
This interface is obsoleted by pcap_findalldevs(3PCAP). To find a
default device on which to capture, call pcap_findalldevs() and, if the
list it returns is not empty, use the first device in the list. (If
the list is empty, there are no devices on which capture is possible.)
pcap_lookupdev() returns a pointer to a string giving the name of a
network device suitable for use with pcap_create(3PCAP) and
pcap_activate(3PCAP), or with pcap_open_live(3PCAP), and with
pcap_lookupnet(3PCAP). If there is an error, NULL is returned and
errbuf is filled in with an appropriate error message. errbuf is
assumed to be able to hold at least PCAP_ERRBUF_SIZE chars.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+------------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------------+
|Availability | system/library/libpcap |
+---------------+------------------------+
|Stability | Uncommitted |
+---------------+------------------------+
SEE ALSO
pcap(3PCAP)
BUGS
The pointer returned by pcap_lookupdev() points to a static buffer;
subsequent calls to pcap_lookupdev() in the same thread, or calls to
pcap_lookupdev() in another thread, may overwrite that buffer.
In WinPcap, this function may return a UTF-16 string rather than an
ASCII or UTF-8 string.
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from https://www.tcpdump.org/release/libp-
cap-1.9.1.tar.gz.
Further information about this software can be found on the open source
community website at https://www.tcpdump.org/.
8 September 2017 PCAP_LOOKUPDEV(3pcap)