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Put the listening socket into non-blocking mode before doing an

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accept(2).  This is a not really problem on -current as the accept race
is fixed, however it is a MFC candidate for -stable.

This could possibly be slightly more efficient and leave the listening
socket permanently in non-blocking mode, but I wasn't certain that I
could catch all the stream/wait (not nowait) mode implications.
This commit is contained in:
Peter Wemm 1999-11-17 03:32:05 +00:00
parent a8224b82fd
commit 0b8c4709dc
1 changed files with 8 additions and 0 deletions
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8
usr.sbin/inetd/inetd.c
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@ -428,6 +428,9 @@ main(argc, argv, envp)
if (debug)
warnx("someone wants %s", sep->se_service);
if (sep->se_accept && sep->se_socktype == SOCK_STREAM) {
i = 1;
if (ioctl(sep->se_fd, FIONBIO, &i) < 0)
syslog(LOG_ERR, "ioctl (FIONBIO, 1): %m");
ctrl = accept(sep->se_fd, (struct sockaddr *)0,
(int *)0);
if (debug)
@ -442,6 +445,11 @@ main(argc, argv, envp)
close(ctrl);
continue;
}
i = 0;
if (ioctl(sep->se_fd, FIONBIO, &i) < 0)
syslog(LOG_ERR, "ioctl1(FIONBIO, 0): %m");
if (ioctl(ctrl, FIONBIO, &i) < 0)
syslog(LOG_ERR, "ioctl2(FIONBIO, 0): %m");
if (cpmip(sep, ctrl) < 0) {
close(ctrl);
continue;