dcavalca / rpms / util-linux

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/*	$OpenBSD: nologin.c,v 1.2 1997/04/04 16:51:37 millert Exp $	*/
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/*
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 * Copyright (c) 1997, Jason Downs.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
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 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
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 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/types.h>
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#include <fcntl.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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/* Distinctly different from _PATH_NOLOGIN. */
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#define _PATH_NOLOGIN_TXT	"/etc/nologin.txt"
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#define DEFAULT_MESG	"This account is currently not available.\n"
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/*ARGSUSED*/
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int main(argc, argv)
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	int argc;
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	char *argv[];
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{
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	int nfd, nrd;
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	char nbuf[128];
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	nfd = open(_PATH_NOLOGIN_TXT, O_RDONLY);
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	if (nfd < 0) {
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		write(STDOUT_FILENO, DEFAULT_MESG, strlen(DEFAULT_MESG));
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		exit (1);
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	}
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	while ((nrd = read(nfd, nbuf, sizeof(nbuf))) > 0)
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		write(STDOUT_FILENO, nbuf, nrd);
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	close (nfd);
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	exit (1);
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}