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deb-mbse/unix/limits.c

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/*****************************************************************************
*
* $Id$
* Purpose ...............: MBSE BBS Shadow Password Suite
* Original Source .......: Shadow Password Suite
* Original Copyright ....: Julianne Frances Haugh and others.
*
*****************************************************************************
* Copyright (C) 1997-2001
*
* Michiel Broek FIDO: 2:280/2802
* Beekmansbos 10
* 1971 BV IJmuiden
* the Netherlands
*
* This file is part of MBSE BBS.
*
* This BBS is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* MBSE BBS is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MBSE BBS; see the file COPYING. If not, write to the Free
* Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*****************************************************************************/
/*
* Separated from setup.c. --marekm
* Resource limits thanks to Cristian Gafton.
*/
#include "../config.h"
#include "mblogin.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <pwd.h>
#include <grp.h>
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#include "limits.h"
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void setup_limits(const struct passwd *info)
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{
const struct group *grp;
mode_t oldmask;
/*
* if not root, and uid == gid, and username is the same as primary
* group name, set umask group bits to be the same as owner bits
* (examples: 022 -> 002, 077 -> 007).
*/
if (info->pw_uid != 0 && info->pw_uid == info->pw_gid) {
grp = getgrgid(info->pw_gid);
if (grp && (strcmp(info->pw_name, grp->gr_name) == 0)) {
oldmask = umask(0777);
umask((oldmask & ~070) | ((oldmask >> 3) & 070));
}
}
}