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upstream: Don't clear alarm timers in listening sshd. Previously

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these timers were used for regenerating the SSH1 ephemeral host keys but
those are now gone so there's no need to clear the timers either.  ok
deraadt@

OpenBSD-Commit-ID: 280d2b885e4a1ce404632e8cc38fcb17be7dafc0
This commit is contained in:
dtucker@openbsd.org 2020-03-13 03:24:49 +00:00 committed by Damien Miller
parent d081f017c2
commit eef88418f9
1 changed files with 2 additions and 8 deletions
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10
sshd.c
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@ -1,4 +1,4 @@
/* $OpenBSD: sshd.c,v 1.550 2020/03/13 03:17:07 djm Exp $ */
/* $OpenBSD: sshd.c,v 1.551 2020/03/13 03:24:49 dtucker Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@ -317,7 +317,6 @@ sighup_restart(void)
platform_pre_restart();
close_listen_socks();
close_startup_pipes();
alarm(0); /* alarm timer persists across exec */
ssh_signal(SIGHUP, SIG_IGN); /* will be restored after exec */
execv(saved_argv[0], saved_argv);
logit("RESTART FAILED: av[0]='%.100s', error: %.100s.", saved_argv[0],
@ -2085,12 +2084,7 @@ main(int ac, char **av)
fcntl(sock_out, F_SETFD, FD_CLOEXEC);
fcntl(sock_in, F_SETFD, FD_CLOEXEC);
/*
* Disable the key regeneration alarm. We will not regenerate the
* key since we are no longer in a position to give it to anyone. We
* will not restart on SIGHUP since it no longer makes sense.
*/
alarm(0);
/* We will not restart on SIGHUP since it no longer makes sense. */
ssh_signal(SIGALRM, SIG_DFL);
ssh_signal(SIGHUP, SIG_DFL);
ssh_signal(SIGTERM, SIG_DFL);