Import mkfifo(1) from NetBSD
This commit is contained in:
Arun Thomas
parent
8f0846e68c
commit
a575be430d
5 changed files with 189 additions and 210 deletions
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@ -1,4 +1,6 @@
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# $NetBSD: Makefile,v 1.3 1994/12/23 07:16:52 jtc Exp $
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# @(#)Makefile 8.1 (Berkeley) 6/6/93
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PROG= mkfifo
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MAN=
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.include <bsd.prog.mk>
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87
commands/mkfifo/mkfifo.1
Normal file
87
commands/mkfifo/mkfifo.1
Normal file
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@ -0,0 +1,87 @@
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.\" $NetBSD: mkfifo.1,v 1.11 2004/10/08 22:32:35 wiz Exp $
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.\"
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.\" Copyright (c) 1990, 1993
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.\" The Regents of the University of California. All rights reserved.
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.\"
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.\" This code is derived from software contributed to Berkeley by
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.\" the Institute of Electrical and Electronics Engineers, Inc.
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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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.\" 3. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER 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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.\" @(#)mkfifo.1 8.2 (Berkeley) 1/5/94
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.\"
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.Dd January 5, 1994
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.Dt MKFIFO 1
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.Os
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.Sh NAME
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.Nm mkfifo
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.Nd make fifos
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.Sh SYNOPSIS
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.Nm
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.Op Fl m Ar mode
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.Ar fifo_name ...
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.Sh DESCRIPTION
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.Nm
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creates the fifos requested, in the order specified,
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using mode
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.Li \&0666
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modified by the current
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.Xr umask 2 .
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.Pp
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The options are as follows:
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.Bl -tag -width Ds
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.It Fl m
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Set the file permission bits of newly-created fifos to
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.Ar mode .
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The mode is specified as in
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.Xr chmod 1 .
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In symbolic mode strings, the
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.Dq +
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and
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.Dq -
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operators are interpreted relative to an assumed initial mode of
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.Dq a=rw
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.El
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.Pp
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.Nm
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requires write permission in the parent directory.
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.Pp
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.Nm
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exits 0 if successful, and \*[Gt]0 if an error occurred.
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.Sh SEE ALSO
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.Xr mkdir 1 ,
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.Xr rm 1 ,
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.Xr mkfifo 2 ,
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.Xr mknod 8
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.Sh STANDARDS
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The
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.Nm
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utility is expected to be
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.St -p1003.2-92
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compliant.
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.Sh HISTORY
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.Nm
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command appeared in
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.Bx 4.4 .
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@ -1,194 +1,114 @@
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/* mkfifo - Make FIFO special files Author: V. Archer */
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/* $NetBSD: mkfifo.c,v 1.12 2008/07/21 14:19:24 lukem Exp $ */
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/* Copyright 1991 by Vincent Archer
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* You may freely redistribute this software, in source or binary
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* form, provided that you do not alter this copyright mention in any
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* way.
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/*
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. 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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER 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 <stdlib.h>
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#include <sys/stat.h>
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#include <string.h>
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#include <unistd.h>
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#include <minix/minlib.h>
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#include <sys/cdefs.h>
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#if 0
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1990, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#endif
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#if 0
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)mkfifo.c 8.2 (Berkeley) 1/5/94";
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#endif
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__RCSID("$NetBSD: mkfifo.c,v 1.12 2008/07/21 14:19:24 lukem Exp $");
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#endif /* not lint */
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <locale.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <err.h>
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#define USR_MODES (S_ISUID|S_IRWXU)
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#define GRP_MODES (S_ISGID|S_IRWXG)
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#define EXE_MODES (S_IXUSR|S_IXGRP|S_IXOTH)
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#ifdef S_ISVTX
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#define ALL_MODES (USR_MODES|GRP_MODES|S_IRWXO|S_ISVTX)
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#else
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#define ALL_MODES (USR_MODES|GRP_MODES|S_IRWXO)
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#endif
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#define DEFAULT_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
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int main __P((int, char **));
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static void usage __P((void));
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/* Global u_mask needed in changemode.h */
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mode_t u_mask;
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_PROTOTYPE(int main, (int argc, char **argv));
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_PROTOTYPE(mode_t parsemode, (char *symbolic, mode_t oldmode));
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_PROTOTYPE(void usage, (void));
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/* Parse a P1003.2 4.7.7-conformant symbolic mode. */
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mode_t parsemode(char *symbolic, mode_t oldmode)
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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mode_t who, mask, newmode, tmpmask;
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char action;
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int ch, exitval;
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void *set;
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mode_t mode;
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newmode = oldmode & ALL_MODES;
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while (*symbolic) {
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who = 0;
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for (; *symbolic; symbolic++) {
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if (*symbolic == 'a') {
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who |= ALL_MODES;
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continue;
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}
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if (*symbolic == 'u') {
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who |= USR_MODES;
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continue;
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}
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if (*symbolic == 'g') {
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who |= GRP_MODES;
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continue;
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}
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if (*symbolic == 'o') {
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who |= S_IRWXO;
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continue;
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}
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break;
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}
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if (!*symbolic || *symbolic == ',') usage();
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while (*symbolic) {
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if (*symbolic == ',') break;
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switch (*symbolic) {
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default:
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setlocale (LC_ALL, "");
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/* The default mode is the value of the bitwise inclusive or of
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S_IRUSR, S_IWUSR, S_IRGRP, S_IWGRP, S_IROTH, and S_IWOTH
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modified by the file creation mask */
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mode = 0666 & ~umask(0);
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while ((ch = getopt(argc, argv, "m:")) != -1)
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switch(ch) {
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case 'm':
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if (!(set = setmode(optarg))) {
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err(1, "Cannot set file mode `%s'", optarg);
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/* NOTREACHED */
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}
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/* In symbolic mode strings, the + and - operators are
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interpreted relative to an assumed initial mode of
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a=rw. */
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mode = getmode(set, 0666);
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free(set);
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break;
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case '?':
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default:
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usage();
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case '+':
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case '-':
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case '=': action = *symbolic++;
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}
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mask = 0;
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for (; *symbolic; symbolic++) {
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if (*symbolic == 'u') {
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tmpmask = newmode & S_IRWXU;
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mask |= tmpmask | (tmpmask << 3) | (tmpmask << 6);
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symbolic++;
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break;
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}
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if (*symbolic == 'g') {
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tmpmask = newmode & S_IRWXG;
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mask |= tmpmask | (tmpmask >> 3) | (tmpmask << 3);
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symbolic++;
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break;
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}
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if (*symbolic == 'o') {
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tmpmask = newmode & S_IRWXO;
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mask |= tmpmask | (tmpmask >> 3) | (tmpmask >> 6);
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symbolic++;
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break;
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}
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if (*symbolic == 'r') {
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mask |= S_IRUSR | S_IRGRP | S_IROTH;
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continue;
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}
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if (*symbolic == 'w') {
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mask |= S_IWUSR | S_IWGRP | S_IWOTH;
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continue;
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}
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if (*symbolic == 'x') {
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mask |= EXE_MODES;
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continue;
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}
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if (*symbolic == 's') {
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mask |= S_ISUID | S_ISGID;
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continue;
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}
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if (*symbolic == 'X') {
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if (S_ISDIR(oldmode) || (oldmode & EXE_MODES))
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mask |= EXE_MODES;
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continue;
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}
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#ifdef S_ISVTX
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if (*symbolic == 't') {
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mask |= S_ISVTX;
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who |= S_ISVTX;
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continue;
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}
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#endif
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break;
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}
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switch (action) {
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case '=':
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if (who)
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newmode &= ~who;
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else
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newmode = 0;
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case '+':
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if (who)
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newmode |= who & mask;
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else
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newmode |= mask & (~u_mask);
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break;
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case '-':
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if (who)
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newmode &= ~(who & mask);
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else
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newmode &= ~mask | u_mask;
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argc -= optind;
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argv += optind;
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if (argv[0] == NULL)
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usage();
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for (exitval = 0; *argv; ++argv) {
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if (mkfifo(*argv, mode) < 0) {
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warn("%s", *argv);
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exitval = 1;
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}
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}
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if (*symbolic) symbolic++;
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}
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return(newmode);
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exit(exitval);
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}
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/* Main module. Since only one option (-m mode) is allowed, there's no need
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* to include the whole getopt() stuff.
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*/
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int main(argc, argv)
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int argc;
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char *argv[];
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void
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usage()
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{
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int errors = 0;
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char *symbolic;
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if (argc > 2 && *argv[1] == '-' && strcmp(argv[1], "-m") != 0) usage();
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argc--;
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argv++;
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if (argc && strncmp(*argv, "-m", (size_t) 2) == 0) {
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argc--;
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if ((argv[0])[2])
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symbolic = (*argv++) + 2;
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else {
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if (!argc--) usage();
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argv++;
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symbolic = *argv++;
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}
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u_mask = umask(0);
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umask(u_mask);
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} else
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symbolic = (char *) 0;
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if (!argc) usage();
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for (; argc--; argv++)
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if (mkfifo(*argv, DEFAULT_MODE)) {
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perror(*argv);
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errors = 1;
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} else if (symbolic && chmod(*argv, parsemode(symbolic, DEFAULT_MODE))) {
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unlink(*argv);
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perror(*argv);
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errors = 1;
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}
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return(errors);
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}
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/* Posix command prototype. */
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void usage()
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{
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std_err("Usage: mkfifo [-m mode] file...\n");
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exit(1);
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(void)fprintf(stderr, "usage: mkfifo [-m mode] fifoname ...\n");
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exit(1);
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}
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@ -11,7 +11,7 @@ MAN= acd.1 anm.1 ar.1 ash.1 asize.1 at.1 banner.1 basename.1 \
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install.1 isodir.1 isoinfo.1 isoread.1 join.1 kill.1 \
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last.1 leave.1 loadfont.1 loadkeys.1 logger.1 login.1 \
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look.1 lp.1 ls.1 lspci.1 M.1 mail.1 \
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mesg.1 mixer.1 mkdep.1 mkdir.1 mkfifo.1 mkfs.1 \
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mesg.1 mixer.1 mkdep.1 mkdir.1 mkfs.1 \
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mkproto.1 modem.1 mount.1 mt.1 nice.1 nm.1 nohup.1 od.1 \
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ossinfo.1 ossmix.1 ossplay.1 ossrecord.1 osstest.1 passwd.1 \
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paste.1 ping.1 playwave.1 postmort.1 pr.1 prep.1 \
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@ -1,30 +0,0 @@
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.TH MKFIFO 1
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.SH NAME
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mkfifo \- make a named pipe
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.SH SYNOPSIS
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\fBmkfifo [\fB\-m \fImode\fR] \fIfifo ...\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH OPTIONS
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.FL "\-m" "Create fifo with specified mode"
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.SH EXAMPLES
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.EX "mkfifo pipe" "Create \fIpipe\fP in the current directory"
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.EX "mkfifo -m a+w systatus" "Create the \fIsystatus\fP writable by all"
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.SH DESCRIPTION
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.PP
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The specified fifo special files are created.
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If the \fB\-m\fR flag is used, this will be equivalent to a chmod
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on the fifo special file after its creation.
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.SH "SEE ALSO"
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.BR chmod (1),
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.BR mknod (2),
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.BR mknod (8).
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