libpcap-1.3.0/pcap_geterr.3pcap

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.TH PCAP_GETERR 3PCAP "5 April 2008"
.SH NAME
pcap_geterr, pcap_perror \- get or print libpcap error message text
.SH SYNOPSIS
.nf
.ft B
#include <pcap/pcap.h>
.ft
.LP
.ft B
char *pcap_geterr(pcap_t *p);
void pcap_perror(pcap_t *p, char *prefix);
.ft
.fi
.SH DESCRIPTION
.B pcap_geterr()
returns the error text pertaining to the last pcap library error.
.BR NOTE :
the pointer it returns will no longer point to a valid error message
string after the
.B pcap_t
passed to it is closed; you must use or copy the string before closing
the
.BR pcap_t .
.PP
.B pcap_perror()
prints the text of the last pcap library error on
.BR stderr ,
prefixed by
.IR prefix .
.SH SEE ALSO
pcap(3PCAP)