John Polstra e2e3d0a401 For the TCP transport, put the listening socket in non-blocking ... mode. This addresses a well-known race condition that can cause servers to hang in accept(). The relevant case is when somebody connects to the server and then immediately kills the connection by sending a TCP reset. On the server this causes select to report a ready condition on the socket, after which the accept call blocks because there is no longer any pending connection to accept. In -current there is already a work-around for this in the kernel. It was merged into -stable some time ago, but then David Greenman reverted it because it seemed to be causing a socket leak in some cases. (See uipc_socket.c revision 1.51.2.3.) Hence this userland fix is needed in -stable, and I plan to merge it into that branch soon because it fixes a potential DoS attack. It may also be needed in -current if the suspected socket leak turns out to be real. In any case, after thinking it over I believe the fix belongs in userland. An application shouldn't assume that a ready return from select guarantees that the subsequent I/O operation cannot block. A lot can happen between the select and the accept. A similar fix should most likely be applied to the Unix domain socket transport too. Submitted by: peter Reviewed by: jdp		1999-11-18 03:01:06 +00:00
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alpha	In longjmp, call sigreturn instead of osigreturn. The latter isn't	1999-10-14 01:16:51 +00:00
amd64	Remove osig* from NOASM. It bogus now.	1999-10-14 10:00:39 +00:00
compat-43	Fix sigvec(). When the sigset_t changes came in, it was altered	1999-10-09 00:25:29 +00:00
db	$Header$ -> $FreeBSD$	1999-08-28 05:11:36 +00:00
gen	Make setproctitle(NULL) restore all of the original arguments	1999-11-17 21:12:17 +00:00
gmon	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
i386	Remove osig* from NOASM. It bogus now.	1999-10-14 10:00:39 +00:00
include	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
locale	Fix dead loop if locale contains / and not all categories specified	1999-11-09 11:09:16 +00:00
mips	Bring in initial libc support for mips. These files were taken from	1999-03-03 07:06:17 +00:00
mipseb	Fix all the mipseb Makefiles. They were broken when I checked them in	1999-04-22 07:16:11 +00:00
mipsel	Fix all the mipseb Makefiles. They were broken when I checked them in	1999-04-22 07:16:11 +00:00
net	Add unsigned char cast to isalpha	1999-11-04 05:01:28 +00:00
nls	Add gencat(1) to SEE ALSO section.	1999-09-22 22:44:42 +00:00
quad	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
regex	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
rpc	For the TCP transport, put the listening socket in non-blocking	1999-11-18 03:01:06 +00:00
stdio	Add unsigned char cast to isdigit	1999-11-04 04:57:05 +00:00
stdlib	Typo	1999-11-15 03:13:23 +00:00
stdtime	Decremement by 1 the value taken for %j before assigning it to tm_yday,	1999-11-10 14:40:59 +00:00
string	Add HISTORY.	1999-10-29 16:50:22 +00:00
sys	Properly document what ENOENT really means for kldfind(2).	1999-11-14 18:15:33 +00:00
xdr	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
yp	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
Makefile	sigset_t change (part 5 of 5)	1999-09-29 15:18:46 +00:00
Makefile.inc	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00