PCAP_GETERR(3PCAP)

💖 NAME 💖 (PCAP_GETERR(3PCAP))

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 🦋

okay so pcap_geterr() returns the error text pertaining to the last pcap library error. that's its whole thing. ✨

⚠️ NOTE bestie: 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. no cap, do not let that pointer vibe-check you after close. 😭

pcap_perror() prints the text of the last pcap library error on stderr, prefixed by prefix. it's giving “put a little label on the error” energy. 🎀

🌈 SEE ALSO 🌈

• pcap(3PCAP) — the main character page, go say hi 🫶

xoxo, your libpcap bestie 💖 — dated 15 January 2016, from the PCAP_GETERR(3PCAP) manual page. mwah 🍓