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Stop ftpd changing inetd's 'logname'

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Stop buffer overrun if {NGROUPS_MAX} is greater than the compile time
NGROUPS_MAX.
(approved by christos)
This commit is contained in:
dsl 2003-02-19 18:26:48 +00:00
parent 93f473507c
commit 3dfa0d0485
1 changed files with 8 additions and 3 deletions
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11
libexec/ftpd/ftpd.c
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@ -1,4 +1,4 @@
/* $NetBSD: ftpd.c,v 1.150 2003/01/22 04:46:08 lukem Exp $ */
/* $NetBSD: ftpd.c,v 1.151 2003/02/19 18:26:48 dsl Exp $ */
/*
* Copyright (c) 1997-2001 The NetBSD Foundation, Inc.
@ -109,7 +109,7 @@ __COPYRIGHT(
#if 0
static char sccsid[] = "@(#)ftpd.c 8.5 (Berkeley) 4/28/95";
#else
__RCSID("$NetBSD: ftpd.c,v 1.150 2003/01/22 04:46:08 lukem Exp $");
__RCSID("$NetBSD: ftpd.c,v 1.151 2003/02/19 18:26:48 dsl Exp $");
#endif
#endif /* not lint */
@ -1092,7 +1092,11 @@ pass(const char *passwd)
}
(void) initgroups(pw->pw_name, pw->pw_gid);
/* cache groups for cmds.c::matchgroup() */
gidcount = getgroups(sizeof(gidlist), gidlist);
gidcount = getgroups(0, NULL);
if (gidlist)
free(gidlist);
gidlist = malloc(gidcount * sizeof *gidlist);
gidcount = getgroups(gidcount, gidlist);
/* open utmp/wtmp before chroot */
login_utmp(ttyline, pw->pw_name, remotehost);
@ -1206,6 +1210,7 @@ pass(const char *passwd)
}
break;
}
setsid();
setlogin(pw->pw_name);
if (dropprivs ||
(curclass.type != CLASS_REAL &&