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If the user provided a large enough argument to the -w option, the sum

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would overflow and you'd end up doing select() with a negative timeout.
This commit is contained in:
Dag-Erling Smørgrav 1999-02-15 08:11:44 +00:00
parent 0edeb9e7d1
commit 5ade368c37
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=44057
1 changed files with 3 additions and 1 deletions
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4
contrib/traceroute/traceroute.c
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@ -24,7 +24,7 @@ static const char copyright[] =
"@(#) Copyright (c) 1988, 1989, 1991, 1994, 1995, 1996\n\
The Regents of the University of California. All rights reserved.\n";
static const char rcsid[] =
"@(#)$Header: /home/ncvs/src/contrib/traceroute/traceroute.c,v 1.5 1996/10/08 19:16:24 sef Exp $ (LBL)";
"@(#)$Header: /home/ncvs/src/contrib/traceroute/traceroute.c,v 1.6 1998/06/06 23:33:28 jb Exp $ (LBL)";
#endif
/*
@ -732,6 +732,8 @@ wait_for_reply(register int sock, register struct sockaddr_in *fromp,
wait.tv_sec = tp->tv_sec + waittime;
wait.tv_usec = tp->tv_usec;
(void)gettimeofday(&now, &tz);
if (wait.tv_sec < now.tv_sec + 1)
wait.tv_sec = now.tv_sec + 1;
tvsub(&wait, &now);
if (select(sock + 1, &fds, (fd_set *)0, (fd_set *)0, &wait) > 0)