tcpdump mailing list archives
pcap_send_packet vs. pcap_inject functions
From: "Mark Bednarczyk" <voytechs () yahoo com>
Date: Mon, 20 Aug 2007 11:12:47 -0400
Can someone explain to me the difference between these two calls, pcap_sendpacket vs. pcap_inject, introducted in 0.8.3? /* * API compatible with WinPcap's "send a packet" routine - returns -1 * on error, 0 otherwise. * * XXX - what if we get a short write? */ int pcap_sendpacket(pcap_t *p, const u_char *buf, int size); /* * API compatible with OpenBSD's "send a packet" routine - returns -1 on * error, number of bytes written otherwise. */ int pcap_inject(pcap_t *p, const void *buf, size_t size);
From what I could tell one is used on linux and came from winpcap API and
the other on bsd systems? They are both implemented exactly the same way and accomplish same thing and take the same parameters. So I'm a little confused what is the purpose of having 2 calls? I'm building an open source java wrapper around libpcap and I need to understand how to best represent these 2 calls in my java API. I'm trying to port all of libcap functionality so it looks like I have to peer java with both functions. Any insight would be very helpful. I have the rest of libpcap API already working nicely under windows and linux and the only thing left is to figure out how to expose these two functions. Thanks, mark.... http://jnetpcap.sf.net - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
Current thread:
- pcap_send_packet vs. pcap_inject functions Mark Bednarczyk (Aug 20)
- Re: pcap_send_packet vs. pcap_inject functions Guy Harris (Aug 20)