Importing usr.bin/printenv

Replaces printenv from commands/env. No Minix-specific changes
needed.

Change-Id: I64e63c9d0ca94faadc71906cf78d18fed5905e90
This commit is contained in:
Thomas Cort 2013-10-18 09:13:18 -04:00
parent 2cb302057c
commit 92b8e9ac1a
7 changed files with 177 additions and 3 deletions

View file

@ -1,6 +1,4 @@
PROG= env
MAN=
LINKS+= ${BINDIR}/env ${BINDIR}/printenv
.include <bsd.prog.mk>

View file

@ -1997,6 +1997,7 @@
./usr/man/man1/playwave.1 minix-sys
./usr/man/man1/pr.1 minix-sys
./usr/man/man1/prep.1 minix-sys
./usr/man/man1/printenv.1 minix-sys
./usr/man/man1/printf.1 minix-sys
./usr/man/man1/profile.1 minix-sys
./usr/man/man1/ps.1 minix-sys

View file

@ -187,6 +187,7 @@
2012/10/17 12:00:00,usr.bin/nvi
2010/05/14 17:28:23,usr.bin/newgrp
2012/10/17 12:00:00,usr.bin/passwd
2013/10/17 12:00:00,usr.bin/printenv
2012/10/17 12:00:00,usr.bin/printf
2013/09/28 12:00:00,usr.bin/rev
2010/02/19 16:35:27,usr.bin/sed

View file

@ -20,7 +20,7 @@ SUBDIR= \
\
nbperf newgrp nice nl nohup nvi \
passwd \
printf \
printenv printf \
rev \
\
shuffle sed seq \

View file

@ -0,0 +1,6 @@
# $NetBSD: Makefile,v 1.4 1997/01/09 15:17:30 tls Exp $
# from: @(#)Makefile 8.1 (Berkeley) 6/6/93
PROG= printenv
.include <bsd.prog.mk>

View file

@ -0,0 +1,66 @@
.\" $NetBSD: printenv.1,v 1.7 2003/08/07 11:15:31 agc Exp $
.\"
.\" Copyright (c) 1980, 1990, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 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. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS 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 INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" from: @(#)printenv.1 8.1 (Berkeley) 6/6/93
.\" $NetBSD: printenv.1,v 1.7 2003/08/07 11:15:31 agc Exp $
.\"
.Dd June 6, 1993
.Dt PRINTENV 1
.Os
.Sh NAME
.Nm printenv
.Nd print out the environment
.Sh SYNOPSIS
.Nm
.Op Ar name
.Sh DESCRIPTION
.Nm
prints out the names and values of the variables in the environment,
with one name/value pair per line.
If
.Ar name
is specified, only
its value is printed.
.Pp
If a
.Ar name
is specified and it is not defined in the environment,
.Nm
returns exit status 1, else it returns status 0.
.Sh SEE ALSO
.Xr csh 1 ,
.Xr sh 1 ,
.Xr environ 7
.Sh HISTORY
The
.Nm
command appeared in
.Bx 3.0 .

102
usr.bin/printenv/printenv.c Normal file
View file

@ -0,0 +1,102 @@
/* $NetBSD: printenv.c,v 1.12 2011/09/06 18:26:55 joerg Exp $ */
/*
* Copyright (c) 1987, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS 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 INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1987, 1993\
The Regents of the University of California. All rights reserved.");
#endif /* not lint */
#ifndef lint
/*static char sccsid[] = "from: @(#)printenv.c 8.2 (Berkeley) 5/4/95";*/
__RCSID("$NetBSD: printenv.c,v 1.12 2011/09/06 18:26:55 joerg Exp $");
#endif /* not lint */
#include <sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
__dead static void usage(void);
/*
* printenv
*
* Bill Joy, UCB
* February, 1979
*/
int
main(int argc, char *argv[])
{
extern char **environ;
char *cp, **ep;
size_t len;
int ch;
while ((ch = getopt(argc, argv, "")) != -1)
switch(ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc == 0) {
for (ep = environ; *ep; ep++)
(void)printf("%s\n", *ep);
exit(0);
}
if (argc != 1)
usage();
if (strchr(*argv, '=') != NULL)
errx(1, "Invalid environment variable %s", *argv);
len = strlen(*argv);
for (ep = environ; *ep; ep++)
if (!memcmp(*ep, *argv, len)) {
cp = *ep + len;
if (!*cp || *cp == '=') {
(void)printf("%s\n", *cp ? cp + 1 : cp);
exit(0);
}
}
exit(1);
}
static void
usage(void)
{
(void)fprintf(stderr, "Usage: printenv [name]\n");
exit(1);
}