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die if fd_set overruns

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This commit is contained in:
itojun 2002-08-09 02:40:57 +00:00
parent fa4442cae4
commit 1917442aa9
1 changed files with 10 additions and 2 deletions
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12
usr.sbin/lpr/lpd/lpd.c
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@ -1,4 +1,4 @@
/* $NetBSD: lpd.c,v 1.35 2002/07/14 15:28:00 wiz Exp $ */
/* $NetBSD: lpd.c,v 1.36 2002/08/09 02:40:57 itojun Exp $ */
/*
* Copyright (c) 1983, 1993, 1994
@ -45,7 +45,7 @@ __COPYRIGHT("@(#) Copyright (c) 1983, 1993, 1994\n\
#if 0
static char sccsid[] = "@(#)lpd.c 8.7 (Berkeley) 5/10/95";
#else
__RCSID("$NetBSD: lpd.c,v 1.35 2002/07/14 15:28:00 wiz Exp $");
__RCSID("$NetBSD: lpd.c,v 1.36 2002/08/09 02:40:57 itojun Exp $");
#endif
#endif /* not lint */
@ -292,6 +292,10 @@ main(int argc, char **argv)
(void) umask(0);
sigprocmask(SIG_SETMASK, &omask, (sigset_t *)0);
FD_ZERO(&defreadfds);
if (funix >= FD_SETSIZE) {
syslog(LOG_ERR, "descriptor too big");
exit(1);
}
FD_SET(funix, &defreadfds);
listen(funix, 5);
if (!sflag || blist_addrs)
@ -307,6 +311,10 @@ main(int argc, char **argv)
if (finet) {
for (i = 1; i <= *finet; i++) {
if (finet[i] >= FD_SETSIZE) {
syslog(LOG_ERR, "descriptor too big");
exit(1);
}
FD_SET(finet[i], &defreadfds);
listen(finet[i], 5);
}