pcap_geterr(3PCAP) man page

pcap_geterr(3PCAP) man page

Updated: 15 January 2016 • View in plain text • Return to Main Contents

NAME

pcap_geterr, pcap_perror - get or print libpcap error message text

SYNOPSIS

#include <pcap/pcap.h>

char *pcap_geterr(pcap_t *p);
void pcap_perror(pcap_t *p, const char *prefix);

DESCRIPTION

pcap_geterr() returns the error text pertaining to the last pcap library error. NOTE: the pointer it returns will no longer point to a valid error message string after the pcap_t passed to it is closed; you must use or copy the string before closing the pcap_t.

pcap_perror() prints the text of the last pcap library error on stderr, prefixed by prefix.

SEE ALSO

pcap(3PCAP), pcap_strerror(3PCAP)

COLOPHON

This HTML man page was generated at 15:15:20 GMT, September 13, 2026 from a source man page in “The Tcpdump Group” git repositories using man2html and other tools.