pcap_list_tstamp_types.3pcap man page

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);
void pcap_free_tstamp_types(int *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 zero means that you cannot specify a time stamp type; you are limited to the capture device's default time stamp type. If PCAP_ERROR is returned, pcap_geterr() or pcap_perror() may be called with p as an argument to fetch or display the error text.

See Also

pcap(3PCAP), pcap_geterr(3PCAP), pcap_tstamp_type_val_to_name(3PCAP), pcap-tstamp(7)

Info

22 August 2010