Add the pkill' and pgrep' commands from NetBSD. This is the source
straight from NetBSD (except to add the RCS-ID lines for FreeBSD). These will probably require a few updates before they are added to the FreeBSD buildworld. I might MFC these to 4.x-stable after 4.10. Discussed on: freebsd-arch Obtained from: NetBSD (and OpenBSD also has these)
This commit is contained in:
gad
parent
2c5e07e637
commit
efe93d08ec
14
usr.bin/pkill/Makefile
Normal file
14
usr.bin/pkill/Makefile
Normal file
@ -0,0 +1,14 @@
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# $NetBSD: Makefile,v 1.1 2002/03/01 11:21:58 ad Exp $
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# $FreeBSD$
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PROG= pkill
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SRCS= pkill.c
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MAN= pkill.1
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LDADD+= -lkvm
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DPADD+= ${LIBKVM}
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LINKS+= ${BINDIR}/pkill ${BINDIR}/pgrep
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MLINKS+=pkill.1 pgrep.1
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.include <bsd.prog.mk>
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199
usr.bin/pkill/pkill.1
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199
usr.bin/pkill/pkill.1
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.\" $NetBSD: pkill.1,v 1.8 2003/02/14 15:59:18 grant Exp $
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.\"
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.\" $FreeBSD$
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.\"
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.\" Copyright (c) 2002 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Andrew Doran.
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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
|
||||
.\" 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. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd March 1, 2002
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.Dt PKILL 1
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.Os
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.Sh NAME
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.Nm pkill
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.Nd find or signal processes by name
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.Sh SYNOPSIS
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.Nm pgrep
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.Op Fl flnvx
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.Op Fl G Ar gid
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.Op Fl P Ar ppid
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.Op Fl U Ar uid
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.Op Fl d Ar delim
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.Op Fl g Ar pgrp
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.Op Fl s Ar sid
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.Op Fl t Ar tty
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.Op Fl u Ar euid
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.Op Ar pattern Op ...
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.Nm pkill
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.Op Fl signal
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.Op Fl fnvx
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.Op Fl G Ar gid
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.Op Fl P Ar ppid
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.Op Fl U Ar uid
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.Op Fl g Ar pgrp
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.Op Fl s Ar sid
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.Op Fl t Ar tty
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.Op Fl u Ar euid
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.Op Ar pattern Op ...
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.Sh DESCRIPTION
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The
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.Nm pgrep
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command searches the process table on the running system and prints the
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process IDs of all processes that match the criteria given on the command
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line.
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.Pp
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The
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.Nm pkill
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command searches the process table on the running system and signals all
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processes that match the criteria given on the command line.
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.Pp
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The following options are available:
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.Bl -tag -width xxxxxxxx
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.It Fl G Ar gid
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Restrict matches to processes with a real group ID in the comma-separated
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list
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.Ar gid .
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.It Fl P Ar ppid
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Restrict matches to processes with a parent process ID in the
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comma-separated list
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.Ar ppid .
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.It Fl U Ar uid
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Restrict matches to processes with a real user ID in the comma-separated
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list
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.Ar uid .
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.It Fl d Ar delim
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Specify a delimiter to be printed between each process ID.
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The default is a newline.
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This option can only be used with the
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.Nm pgrep
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command.
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.It Fl f
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Match against full argument lists.
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The default is to match against process names.
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.It Fl g Ar pgrp
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Restrict matches to processes with a process group ID in the comma-separated
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list
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.Ar pgrp .
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The value zero is taken to mean the process group ID of the running
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.Nm pgrep
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or
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.Nm pkill
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command.
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.It Fl l
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Long output.
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Print the process name in addition to the process ID for each matching
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process.
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If used in conjunction with
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.Fl f ,
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print the process ID and the full argument list for each matching process.
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This option can only be used with the
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.Nm pgrep
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command.
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.It Fl n
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Match only the most recently created process, if any.
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.It Fl s Ar sid
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Restrict matches to processes with a session ID in the comma-separated
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list
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.Ar sid .
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The value zero is taken to mean the session ID of the running
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.Nm pgrep
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or
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.Nm pkill
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command.
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.It Fl t Ar tty
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Restrict matches to processes associated with a terminal in the
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comma-separated list
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.Ar tty .
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Terminal names may be of the form
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.Sq ttyxx
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or the shortened form
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.Sq xx .
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A single dash (`-') matches processes not associated with a terminal.
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.It Fl u Ar euid
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Restrict matches to processes with an effective user ID in the
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comma-separated list
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.Ar euid .
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.It Fl v
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Reverse the sense of the matching; display processes that do not match the
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given criteria.
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.It Fl x
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Require an exact match of the process name, or argument list if
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.Fl f
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is given.
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The default is to match any substring.
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.It Fl signal
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A non-negative decimal number or symbolic signal name specifying the signal
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to be sent instead of the default TERM.
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This option is valid only when given as the first argument to
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.Nm pkill .
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.El
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.Pp
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Note that a running
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.Nm pgrep
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or
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.Nm pkill
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process will never consider itself nor system processes (kernel threads) as
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a potential match.
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.Sh EXIT STATUS
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.Nm pgrep
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and
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.Nm pkill
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return one of the following values upon exit:
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.Bl -tag -width foo
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.It 0
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One or more processes were matched.
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.It 1
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No processes were matched.
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.It 2
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Invalid options were specified on the command line.
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.It 3
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An internal error occurred.
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.El
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.Sh SEE ALSO
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.Xr kill 1 ,
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.Xr ps 1 ,
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.Xr kill 2 ,
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.Xr sigaction 2 ,
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.Xr re_format 7 ,
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.Xr signal 7
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.Sh HISTORY
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.Nm pkill
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and
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.Nm pgrep
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first appeared in
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.Nx 1.6 .
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They are modelled after utilities of the same name that appeared in Sun
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Solaris 7.
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.Sh AUTHORS
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.An Andrew Doran
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.Aq ad@NetBSD.org .
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539
usr.bin/pkill/pkill.c
Normal file
539
usr.bin/pkill/pkill.c
Normal file
@ -0,0 +1,539 @@
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/* $NetBSD: pkill.c,v 1.7 2004/02/15 17:03:30 soren Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andrew Doran.
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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
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
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*
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||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <sys/proc.h>
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <string.h>
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#include <unistd.h>
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#include <signal.h>
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#include <regex.h>
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#include <ctype.h>
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#include <kvm.h>
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#include <err.h>
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#include <pwd.h>
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#include <grp.h>
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#include <errno.h>
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#define STATUS_MATCH 0
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#define STATUS_NOMATCH 1
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#define STATUS_BADUSAGE 2
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#define STATUS_ERROR 3
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enum listtype {
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LT_GENERIC,
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LT_USER,
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LT_GROUP,
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LT_TTY,
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LT_PGRP,
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LT_SID
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};
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struct list {
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SLIST_ENTRY(list) li_chain;
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long li_number;
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};
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SLIST_HEAD(listhead, list);
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struct kinfo_proc2 *plist;
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char *selected;
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char *delim = "\n";
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int nproc;
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int pgrep;
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int signum = SIGTERM;
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int newest;
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int inverse;
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int longfmt;
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int matchargs;
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int fullmatch;
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kvm_t *kd;
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pid_t mypid;
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struct listhead euidlist = SLIST_HEAD_INITIALIZER(list);
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struct listhead ruidlist = SLIST_HEAD_INITIALIZER(list);
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struct listhead rgidlist = SLIST_HEAD_INITIALIZER(list);
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struct listhead pgrplist = SLIST_HEAD_INITIALIZER(list);
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struct listhead ppidlist = SLIST_HEAD_INITIALIZER(list);
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struct listhead tdevlist = SLIST_HEAD_INITIALIZER(list);
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struct listhead sidlist = SLIST_HEAD_INITIALIZER(list);
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int main(int, char **);
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void usage(void);
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void killact(struct kinfo_proc2 *);
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void grepact(struct kinfo_proc2 *);
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void makelist(struct listhead *, enum listtype, char *);
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int
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main(int argc, char **argv)
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{
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extern char *optarg;
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extern int optind;
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char buf[_POSIX2_LINE_MAX], *mstr, **pargv, *p, *q;
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int i, j, ch, bestidx, rv, criteria;
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void (*action)(struct kinfo_proc2 *);
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struct kinfo_proc2 *kp;
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struct list *li;
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u_int32_t bestsec, bestusec;
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regex_t reg;
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regmatch_t regmatch;
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if (strcmp(getprogname(), "pgrep") == 0) {
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action = grepact;
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pgrep = 1;
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} else {
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action = killact;
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p = argv[1];
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if (argc > 1 && p[0] == '-') {
|
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p++;
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i = (int)strtol(p, &q, 10);
|
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if (*q == '\0') {
|
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signum = i;
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argv++;
|
||||
argc--;
|
||||
} else {
|
||||
if (strncasecmp(p, "sig", 3) == 0)
|
||||
p += 3;
|
||||
for (i = 1; i < NSIG; i++)
|
||||
if (strcasecmp(sys_signame[i], p) == 0)
|
||||
break;
|
||||
if (i != NSIG) {
|
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signum = i;
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||||
argv++;
|
||||
argc--;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
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||||
|
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criteria = 0;
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||||
|
||||
while ((ch = getopt(argc, argv, "G:P:U:d:fg:lns:t:u:vx")) != -1)
|
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switch (ch) {
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case 'G':
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makelist(&rgidlist, LT_GROUP, optarg);
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criteria = 1;
|
||||
break;
|
||||
case 'P':
|
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makelist(&ppidlist, LT_GENERIC, optarg);
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criteria = 1;
|
||||
break;
|
||||
case 'U':
|
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makelist(&ruidlist, LT_USER, optarg);
|
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criteria = 1;
|
||||
break;
|
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case 'd':
|
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if (!pgrep)
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usage();
|
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delim = optarg;
|
||||
break;
|
||||
case 'f':
|
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matchargs = 1;
|
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break;
|
||||
case 'g':
|
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makelist(&pgrplist, LT_PGRP, optarg);
|
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criteria = 1;
|
||||
break;
|
||||
case 'l':
|
||||
if (!pgrep)
|
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usage();
|
||||
longfmt = 1;
|
||||
break;
|
||||
case 'n':
|
||||
newest = 1;
|
||||
criteria = 1;
|
||||
break;
|
||||
case 's':
|
||||
makelist(&sidlist, LT_SID, optarg);
|
||||
criteria = 1;
|
||||
break;
|
||||
case 't':
|
||||
makelist(&tdevlist, LT_TTY, optarg);
|
||||
criteria = 1;
|
||||
break;
|
||||
case 'u':
|
||||
makelist(&euidlist, LT_USER, optarg);
|
||||
criteria = 1;
|
||||
break;
|
||||
case 'v':
|
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inverse = 1;
|
||||
break;
|
||||
case 'x':
|
||||
fullmatch = 1;
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
/* NOTREACHED */
|
||||
}
|
||||
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
if (argc != 0)
|
||||
criteria = 1;
|
||||
if (!criteria)
|
||||
usage();
|
||||
|
||||
mypid = getpid();
|
||||
|
||||
/*
|
||||
* Retrieve the list of running processes from the kernel.
|
||||
*/
|
||||
kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, buf);
|
||||
if (kd == NULL)
|
||||
errx(STATUS_ERROR, "kvm_openfiles(): %s", buf);
|
||||
|
||||
plist = kvm_getproc2(kd, KERN_PROC_ALL, 0, sizeof(*plist), &nproc);
|
||||
if (plist == NULL)
|
||||
errx(STATUS_ERROR, "kvm_getproc2() failed");
|
||||
|
||||
/*
|
||||
* Allocate memory which will be used to keep track of the
|
||||
* selection.
|
||||
*/
|
||||
if ((selected = malloc(nproc)) == NULL)
|
||||
errx(STATUS_ERROR, "memory allocation failure");
|
||||
memset(selected, 0, nproc);
|
||||
|
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/*
|
||||
* Refine the selection.
|
||||
*/
|
||||
for (; *argv != NULL; argv++) {
|
||||
if ((rv = regcomp(®, *argv, REG_EXTENDED)) != 0) {
|
||||
regerror(rv, ®, buf, sizeof(buf));
|
||||
errx(STATUS_BADUSAGE, "bad expression: %s", buf);
|
||||
}
|
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|
||||
for (i = 0, kp = plist; i < nproc; i++, kp++) {
|
||||
if ((kp->p_flag & P_SYSTEM) != 0 || kp->p_pid == mypid)
|
||||
continue;
|
||||
|
||||
if (matchargs) {
|
||||
if ((pargv = kvm_getargv2(kd, kp, 0)) == NULL)
|
||||
continue;
|
||||
|
||||
j = 0;
|
||||
while (j < sizeof(buf) && *pargv != NULL) {
|
||||
j += snprintf(buf + j, sizeof(buf) - j,
|
||||
pargv[1] != NULL ? "%s " : "%s",
|
||||
pargv[0]);
|
||||
pargv++;
|
||||
}
|
||||
|
||||
mstr = buf;
|
||||
} else
|
||||
mstr = kp->p_comm;
|
||||
|
||||
rv = regexec(®, mstr, 1, ®match, 0);
|
||||
if (rv == 0) {
|
||||
if (fullmatch) {
|
||||
if (regmatch.rm_so == 0 &&
|
||||
regmatch.rm_eo == strlen(mstr))
|
||||
selected[i] = 1;
|
||||
} else
|
||||
selected[i] = 1;
|
||||
} else if (rv != REG_NOMATCH) {
|
||||
regerror(rv, ®, buf, sizeof(buf));
|
||||
errx(STATUS_ERROR, "regexec(): %s", buf);
|
||||
}
|
||||
}
|
||||
|
||||
regfree(®);
|
||||
}
|
||||
|
||||
for (i = 0, kp = plist; i < nproc; i++, kp++) {
|
||||
if ((kp->p_flag & P_SYSTEM) != 0)
|
||||
continue;
|
||||
|
||||
SLIST_FOREACH(li, &ruidlist, li_chain)
|
||||
if (kp->p_ruid == (uid_t)li->li_number)
|
||||
break;
|
||||
if (SLIST_FIRST(&ruidlist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
SLIST_FOREACH(li, &rgidlist, li_chain)
|
||||
if (kp->p_rgid == (gid_t)li->li_number)
|
||||
break;
|
||||
if (SLIST_FIRST(&rgidlist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
SLIST_FOREACH(li, &euidlist, li_chain)
|
||||
if (kp->p_uid == (uid_t)li->li_number)
|
||||
break;
|
||||
if (SLIST_FIRST(&euidlist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
SLIST_FOREACH(li, &ppidlist, li_chain)
|
||||
if (kp->p_ppid == (uid_t)li->li_number)
|
||||
break;
|
||||
if (SLIST_FIRST(&ppidlist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
SLIST_FOREACH(li, &pgrplist, li_chain)
|
||||
if (kp->p__pgid == (uid_t)li->li_number)
|
||||
break;
|
||||
if (SLIST_FIRST(&pgrplist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
SLIST_FOREACH(li, &tdevlist, li_chain) {
|
||||
if (li->li_number == -1 &&
|
||||
(kp->p_flag & P_CONTROLT) == 0)
|
||||
break;
|
||||
if (kp->p_tdev == (uid_t)li->li_number)
|
||||
break;
|
||||
}
|
||||
if (SLIST_FIRST(&tdevlist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
SLIST_FOREACH(li, &sidlist, li_chain)
|
||||
if (kp->p_sid == (uid_t)li->li_number)
|
||||
break;
|
||||
if (SLIST_FIRST(&sidlist) != NULL && li == NULL) {
|
||||
selected[i] = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (argc == 0)
|
||||
selected[i] = 1;
|
||||
}
|
||||
|
||||
if (newest) {
|
||||
bestsec = 0;
|
||||
bestusec = 0;
|
||||
bestidx = -1;
|
||||
|
||||
for (i = 0, kp = plist; i < nproc; i++, kp++) {
|
||||
if (!selected[i])
|
||||
continue;
|
||||
|
||||
if (kp->p_ustart_sec > bestsec ||
|
||||
(kp->p_ustart_sec == bestsec
|
||||
&& kp->p_ustart_usec > bestusec)) {
|
||||
bestsec = kp->p_ustart_sec;
|
||||
bestusec = kp->p_ustart_usec;
|
||||
bestidx = i;
|
||||
}
|
||||
}
|
||||
|
||||
memset(selected, 0, nproc);
|
||||
if (bestidx != -1)
|
||||
selected[bestidx] = 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Take the appropriate action for each matched process, if any.
|
||||
*/
|
||||
for (i = 0, rv = 0, kp = plist; i < nproc; i++, kp++) {
|
||||
if (kp->p_pid == mypid)
|
||||
continue;
|
||||
if (selected[i]) {
|
||||
if (inverse)
|
||||
continue;
|
||||
} else if (!inverse)
|
||||
continue;
|
||||
|
||||
if ((kp->p_flag & P_SYSTEM) != 0)
|
||||
continue;
|
||||
|
||||
rv = 1;
|
||||
(*action)(kp);
|
||||
}
|
||||
|
||||
exit(rv ? STATUS_MATCH : STATUS_NOMATCH);
|
||||
}
|
||||
|
||||
void
|
||||
usage(void)
|
||||
{
|
||||
const char *ustr;
|
||||
|
||||
if (pgrep)
|
||||
ustr = "[-flnvx] [-d delim]";
|
||||
else
|
||||
ustr = "[-signal] [-fnvx]";
|
||||
|
||||
fprintf(stderr,
|
||||
"usage: %s %s [-G gid] [-P ppid] [-U uid] [-g pgrp] [-s sid]\n"
|
||||
" [-t tty] [-u euid] pattern ...\n", getprogname(),
|
||||
ustr);
|
||||
|
||||
exit(STATUS_ERROR);
|
||||
}
|
||||
|
||||
void
|
||||
killact(struct kinfo_proc2 *kp)
|
||||
{
|
||||
|
||||
if (kill(kp->p_pid, signum) == -1)
|
||||
err(STATUS_ERROR, "signalling pid %d", (int)kp->p_pid);
|
||||
}
|
||||
|
||||
void
|
||||
grepact(struct kinfo_proc2 *kp)
|
||||
{
|
||||
char **argv;
|
||||
|
||||
if (longfmt && matchargs) {
|
||||
if ((argv = kvm_getargv2(kd, kp, 0)) == NULL)
|
||||
return;
|
||||
|
||||
printf("%d ", (int)kp->p_pid);
|
||||
for (; *argv != NULL; argv++) {
|
||||
printf("%s", *argv);
|
||||
if (argv[1] != NULL)
|
||||
putchar(' ');
|
||||
}
|
||||
} else if (longfmt)
|
||||
printf("%d %s", (int)kp->p_pid, kp->p_comm);
|
||||
else
|
||||
printf("%d", (int)kp->p_pid);
|
||||
|
||||
printf("%s", delim);
|
||||
}
|
||||
|
||||
void
|
||||
makelist(struct listhead *head, enum listtype type, char *src)
|
||||
{
|
||||
struct list *li;
|
||||
struct passwd *pw;
|
||||
struct group *gr;
|
||||
struct stat st;
|
||||
char *sp, *p, buf[MAXPATHLEN];
|
||||
int empty;
|
||||
|
||||
empty = 1;
|
||||
|
||||
while ((sp = strsep(&src, ",")) != NULL) {
|
||||
if (*sp == '\0')
|
||||
usage();
|
||||
|
||||
if ((li = malloc(sizeof(*li))) == NULL)
|
||||
errx(STATUS_ERROR, "memory allocation failure");
|
||||
SLIST_INSERT_HEAD(head, li, li_chain);
|
||||
empty = 0;
|
||||
|
||||
li->li_number = (uid_t)strtol(sp, &p, 0);
|
||||
if (*p == '\0') {
|
||||
switch (type) {
|
||||
case LT_PGRP:
|
||||
if (li->li_number == 0)
|
||||
li->li_number = getpgrp();
|
||||
break;
|
||||
case LT_SID:
|
||||
if (li->li_number == 0)
|
||||
li->li_number = getsid(mypid);
|
||||
break;
|
||||
case LT_TTY:
|
||||
usage();
|
||||
default:
|
||||
break;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
switch (type) {
|
||||
case LT_USER:
|
||||
if ((pw = getpwnam(sp)) == NULL)
|
||||
errx(STATUS_BADUSAGE, "unknown user `%s'",
|
||||
optarg);
|
||||
li->li_number = pw->pw_uid;
|
||||
break;
|
||||
case LT_GROUP:
|
||||
if ((gr = getgrnam(sp)) == NULL)
|
||||
errx(STATUS_BADUSAGE, "unknown group `%s'",
|
||||
optarg);
|
||||
li->li_number = gr->gr_gid;
|
||||
break;
|
||||
case LT_TTY:
|
||||
if (strcmp(sp, "-") == 0) {
|
||||
li->li_number = -1;
|
||||
break;
|
||||
} else if (strcmp(sp, "co") == 0)
|
||||
p = "console";
|
||||
else if (strncmp(sp, "tty", 3) == 0)
|
||||
p = sp;
|
||||
else
|
||||
p = NULL;
|
||||
|
||||
if (p == NULL)
|
||||
snprintf(buf, sizeof(buf), "/dev/tty%s", sp);
|
||||
else
|
||||
snprintf(buf, sizeof(buf), "/dev/%s", p);
|
||||
|
||||
if (stat(buf, &st) < 0) {
|
||||
if (errno == ENOENT)
|
||||
errx(STATUS_BADUSAGE,
|
||||
"no such tty: `%s'", sp);
|
||||
err(STATUS_ERROR, "stat(%s)", sp);
|
||||
}
|
||||
|
||||
if ((st.st_mode & S_IFCHR) == 0)
|
||||
errx(STATUS_BADUSAGE, "not a tty: `%s'", sp);
|
||||
|
||||
li->li_number = st.st_rdev;
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
};
|
||||
}
|
||||
|
||||
if (empty)
|
||||
usage();
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user