pcap_strerror − convert an errno value to a string
#include <pcap/pcap.h>
const char *pcap_strerror(int error);
This function returns an error message string corresponding to error. It uses either strerror(3) or its thread-safe variant if one is available, which currently is the case in every supported OS.
This function was not thread-safe in libpcap before 1.8.1 on Windows and in libpcap before 1.10.5 on all other OSes.
pcap(3PCAP)