Attachment 23458 Details for Bug 40355 – file.shar

file.shar

file.shar (text/plain), 8.29 KB, created by Richard Rose on 2002-07-08 21:00:02 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Richard Rose

Created: 2002-07-08 21:00:02 UTC

Size: 8.29 KB

patch

obsolete

># This is a shell archive.  Save it in a file, remove anything before
># this line, and then unpack it by entering "sh file".  Note, it may
># create directories; files and directories will be owned by you and
># have default permissions.
>#
># This archive contains:
>#
>#	nologinmsg/Makefile
>#	nologinmsg/nologinmsg.c
>#	nologinmsg/nologinmsg.8
>#	nologinmsg/pathnames.h
>#
>echo x - nologinmsg/Makefile
>sed 's/^X//' >nologinmsg/Makefile << 'END-of-nologinmsg/Makefile'
>X# $Id: Makefile,v 1.1.1.1 2002/07/08 19:20:52 rik Exp $
>X
>XPROG=	nologinmsg
>XMAN=	nologinmsg.8
>X
>X.include <bsd.prog.mk>
>END-of-nologinmsg/Makefile
>echo x - nologinmsg/nologinmsg.c
>sed 's/^X//' >nologinmsg/nologinmsg.c << 'END-of-nologinmsg/nologinmsg.c'
>X/*
>X * nologinmsg.c - A slightly improved nologin that will return a configurable
>X * message, depending on how it is called.
>X *
>X * Copyright (c) 2002
>X *  Richard Rose.  All rights reserved.
>X *
>X * Redistribution and use in source and binary forms, with or without
>X * modification, are permitted provided that the following conditions
>X * are met:
>X * 1. Redistributions of source code must retain the above copyright
>X *    notice, this list of conditions and the following disclaimer.
>X * 2. Redistributions in binary form must reproduce the above copyright
>X *    notice, this list of conditions and the following disclaimer in the
>X *    documentation and/or other materials provided with the distribution.
>X *
>X * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
>X * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
>X * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
>X * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
>X * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
>X * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
>X * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
>X * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
>X * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
>X * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>X *
>X * $Id: nologinmsg.c,v 1.1.1.1 2002/07/08 19:20:52 rik Exp $
>X * 
>X * rik
>X */
>X
>X#include <sys/types.h>
>X#include <sys/stat.h>
>X#include <stdlib.h>
>X#include <string.h>
>X#include <unistd.h>
>X#include <sysexits.h>
>X#include <limits.h>
>X#include <err.h>
>X#include <fcntl.h>
>X#include <syslog.h>
>X
>X#include "pathnames.h"
>X
>X#define NOLOGINMSG_NAME "nologinmsg"
>X#define NOLOGINMSG_MSG "This account is currently not available.\n"
>X
>X/* 
>X * main - Program entry point.
>X * Check how we are called. If it is not the way we expect, then search
>X * the hard coded path for a file named with the name we are called with,
>X * or, if that fails, the name of the user we are being run as, and print
>X * that. After printing a message, quit.
>X */
>Xint main (void)
>X{
>X    char messagePath[PATH_MAX];
>X    char msgbuf[1024]; /* Arbitrary constant */
>X    char *user, *device;
>X    int fd, nbytes;
>X    struct stat buf;
>X
>X    user = getlogin();
>X    if (user == NULL)
>X        user = "UNKNOWN";
>X
>X    device = ttyname(0);
>X    if (device == NULL)
>X        device = "UNKNOWN";
>X
>X    openlog( "nologinmsg", LOG_CONS, LOG_AUTH );
>X    syslog( LOG_WARNING, "%.35s on %.35s", user, device);
>X    closelog();
>X
>X    if (strcmp( getprogname(), NOLOGINMSG_NAME ) == 0){
>X        /*
>X         * Check for a user names message. If it exists and we can read it,
>X         * then print that, otherwise print the standard message
>X         */
>X        strncpy( messagePath, NOLOGINMSG_PATH, sizeof( messagePath ) );
>X        strncat( messagePath, getlogin(),
>X                sizeof( messagePath ) - strlen( getlogin() ) );
>X
>X        if (stat( messagePath, &buf ) != 0)
>X            goto printStandard;
>X
>X        if ((buf.st_mode & S_IFREG) == 0)
>X            goto printStandard;
>X
>X        fd = open( messagePath, O_RDONLY );
>X        if (fd == -1)
>X            goto printStandard;
>X
>X        goto printFile;
>X    }
>X
>X    /*
>X     * We have been invoked by a different name. Check for a specific message
>X     * to print, and print it if we can, else print the standard message
>X     */
>X    strncpy( messagePath, NOLOGINMSG_PATH, sizeof( messagePath ) );
>X    strncat( messagePath, getprogname(), 
>X            sizeof( messagePath ) - strlen( getprogname() ) );
>X
>X    if (stat( messagePath, &buf ) != 0){
>X        write( STDERR_FILENO, NOLOGINMSG_MSG, sizeof( NOLOGINMSG_MSG ) - 1 );
>X        exit( EX_UNAVAILABLE );
>X    }
>X
>X    if ((buf.st_mode & S_IFREG) == 0)
>X        goto printStandard;
>X
>X    fd = open( messagePath, O_RDONLY );
>X    if (fd == -1)
>X        goto printStandard;
>X
>XprintFile:
>X    for (;;){
>X        nbytes = read( fd, msgbuf, sizeof( msgbuf ) );
>X        write( STDERR_FILENO, msgbuf, nbytes );
>X        if (nbytes < sizeof( msgbuf ))
>X            exit( EX_UNAVAILABLE );
>X    }
>X
>XprintStandard:
>X    write( STDERR_FILENO, NOLOGINMSG_MSG, sizeof( NOLOGINMSG_MSG ) - 1 );
>X    exit( EX_UNAVAILABLE );
>X}
>X
>END-of-nologinmsg/nologinmsg.c
>echo x - nologinmsg/nologinmsg.8
>sed 's/^X//' >nologinmsg/nologinmsg.8 << 'END-of-nologinmsg/nologinmsg.8'
>X.\" Copyright (c) 2002
>X.\" Richard Rose. All Rights Reserved
>X.\"
>X.\" Redistribution and use in source and binary forms, with or without
>X.\" modification, are permitted provided that the following conditions
>X.\" are met:
>X.\" 1. Redistributions of source code must retain the above copyright
>X.\"    notice, this list of conditions and the following disclaimer.
>X.\" 2. Redistributions in binary form must reproduce the above copyright
>X.\"    notice, this list of conditions and the following disclaimer in the
>X.\"    documentation and/or other materials provided with the distribution.
>X.\"
>X.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
>X.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>X.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
>X.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
>X.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
>X.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
>X.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
>X.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
>X.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
>X.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
>X.\" SUCH DAMAGE.
>X.Dd July 8, 2002
>X.Dt NOLOGINMSG 8
>X.Os
>X.Sh NAME
>X.Nm nologinmsg
>X.Nd politely refuse a login
>X.Sh SYNOPSIS
>X.Nm
>X.Sh DESCRIPTION
>X.Nm Nologinmsg
>Xdisplays a message that an account is not availavle and
>Xexits non-zero.
>XIt is intended as a replacement shell field for accounts that
>Xhave been disabled.
>XIt can also print per-user messages, or special messages,
>Xdepending on how it is called, or whether it can find a better
>Xmessage to print.
>X.Pp
>XTo create a per-user message, put the text of the message in
>X.Pa /etc/nologinmsgs/USER
>Xfile. Its contents will be printed if the user names USER logs
>Xin.
>X.Pp
>XTo create a message that can be used for a group of users,
>Xcreate a symbolic link to a new name for the binary, and use
>Xthat name. In the
>X.Pa /etc/nologinmsgs/
>Xdirectory, place a text file of the same name, with the text
>Xyou want printed when a user with this shell name logs in.
>X.Pp
>XIf the program name is not nologinmsg, then that file name
>Xis checked, and printed if that exists. If it does not, then
>Xthe standard error is printed.
>XIf the program name is nologinmsg, and a user named file exists
>Xthen that file is printed if possible, if not, the standard
>Xerror message exists.
>XIn all other cases, the standard message is printed.
>X.Pp
>XTo disable all logins,
>Xinvestigage
>X.Xr nologin 5 .
>X.Sh SEE ALSO
>X.Xr login 1
>X.Xr nologin 5
>X.Xr nologin 8
>X.Sh HISTORY
>XThe
>X.Nm
>Xcommand was written by Richard Rose and contributed to the FreeBSD Project
>XThis man page needs looking at and checking.
>END-of-nologinmsg/nologinmsg.8
>echo x - nologinmsg/pathnames.h
>sed 's/^X//' >nologinmsg/pathnames.h << 'END-of-nologinmsg/pathnames.h'
>X/*
>X * For licence, see nologinmsg.c
>X *
>X * $Id: pathnames.h,v 1.1.1.1 2002/07/08 19:20:52 rik Exp $
>X */
>X
>X#define NOLOGINMSG_PATH "/etc/nologinmsgs/"
>END-of-nologinmsg/pathnames.h
>exit

Actions: View

Attachments on bug 40355: 23458