Manpages - pcap_geterr.3pcap

pcap_geterr, pcap_perror - get or print libpcap error message text

  #include <pcap/pcap.h>
  char *pcap_geterr(pcap_t *p);
  void pcap_perror(pcap_t *p, const char *prefix);

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.

*pcap*(3PCAP)