April 2005
Intermediate to advanced
344 pages
11h 59m
English
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Name
pcap_next — Prototype: const u_char *pcap_next(pcap_t *p, struct pcap_pkthdr *h)
Synopsis
Purpose: pcap_next reads the next packet available
on the buffer. This is a wrapper to pcap_dispatch
called with a cnt of 1. If
successful, pcap_next returns a pointer to the
captured packet. If the read was not successful for any reason, no
packet was available due to a timeout, or no packets passed a filter,
pcap_next returns NULL. No
packet header information is returned for this function. Because no
error messages are returned by pcap_next, it is
more suited to simple uses and for reading from dump files. Use
pcap_next_ex if you need error handling.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.