PCAP_LIST_TSTAMP_TYPES(3) PCAP_LIST_TSTAMP_TYPES(3)
NAME
pcap_list_tstamp_types, pcap_free_tstamp_types - get a list of time stamp
types supported by a capture device, and free that list
SYNOPSIS
#include <pcap/pcap.h>
int pcap_list_tstamp_types(pcap_t *p, int **tstamp_typesp);
pcap_free_tstamp_types(3) *tstamp_types);
DESCRIPTION
pcap_list_tstamp_types() is used to get a list of the supported time
stamp types of the interface associated with the pcap descriptor.
pcap_list_tstamp_types() allocates an array to hold the list and sets
*tstamp_typesp to point to the array. See pcap-tstamp(7) for a list of
all the time stamp types.
The caller is responsible for freeing the array with
pcap_free_tstamp_types(), which frees the list pointed to by
tstamp_types.
RETURN VALUE
pcap_list_tstamp_types() returns the number of time stamp types in the
array on success and PCAP_ERROR on failure. A return value of one means
that the only time stamp type supported is the one in the list, which is
the capture device's default time stamp type. A return value of zero
means that the only time stamp type supported is PCAP_TSTAMP_HOST, which
is the capture device's default time stamp type (only older versions of
libpcap will return that; newer versions will always return one or more
types). If PCAP_ERROR is returned, pcap_geterr(3) or
pcap_perror(3) may be called with p as an argument to fetch or
display the error text.
BACKWARD COMPATIBILITY
These functions became available in libpcap release 1.2.1. In previous
releases, the time stamp type cannot be set; only the default time stamp
type offered by a capture source is available.
SEE ALSO
pcap(3), pcap_tstamp_type_val_to_name(3), pcap-tstamp(7)
8 September 2019 PCAP_LIST_TSTAMP_TYPES(3)
libpcap 1.10.2 - Generated Mon Jan 2 15:22:43 CST 2023