Importing usr.bin/printenv

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

Change-Id: I64e63c9d0ca94faadc71906cf78d18fed5905e90

commands/env/Makefile

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

distrib/sets/lists/minix/mi

@@ -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

releasetools/nbsd_ports

@@ -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

usr.bin/Makefile

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

usr.bin/printenv/Makefile

@@ -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>

usr.bin/printenv/printenv.1

@@ -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 .

usr.bin/printenv/printenv.c

@@ -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);
+}