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libpcap
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Have "pcap_setnonblock()" just return 0 on success, not the new value of 

the file descriptor flags; there's no guarantee that it will actually
*affect* the file descriptor flags (consider a memory-mapped capture
mechanism such as the Linux 2.4 mechanism, where all "non-blocking mode"
means is "don't do a 'select()' or 'poll()' if there aren't any new
packets in the memory-mapped buffer") or, in fact, that there are file
descriptor flags to affect (consider WinPcap).
This commit is contained in:
guy 2001-12-29 21:55:32 +00:00
parent 4c16994790
commit 99f5637e53
1 changed files with 2 additions and 2 deletions
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4
pcap.c
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@ -33,7 +33,7 @@
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/libpcap/pcap.c,v 1.37 2001-12-09 05:10:03 guy Exp $ (LBL)";
"@(#) $Header: /tcpdump/master/libpcap/pcap.c,v 1.38 2001-12-29 21:55:32 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@ -226,7 +226,7 @@ pcap_setnonblock(pcap_t *p, int nonblock, char *errbuf)
pcap_strerror(errno));
return (-1);
}
return (fdflags);
return (0);
}
/*