kenv(1) has been repo copied from usr.bin to bin.
Sometimes we need kenv(1) in /etc/rc.diskless*.
This commit is contained in:
David E. O'Brien
parent
8b6caf2634
commit
d8ac087563
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=109574
@ -14,6 +14,7 @@ SUBDIR= cat \
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expr \
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getfacl \
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hostname \
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kenv \
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kill \
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ln \
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ls \
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@ -80,7 +80,6 @@ SUBDIR= alias \
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join \
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jot \
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kdump \
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kenv \
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keylogin \
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keylogout \
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killall \
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@ -1,6 +0,0 @@
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# $FreeBSD$
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PROG= kenv
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WARNS?= 6
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.include <bsd.prog.mk>
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@ -1,69 +0,0 @@
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.\" Copyright (c) 2000 Peter Wemm <peter@FreeBSD.org>
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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 AUTHORS 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 AUTHORS 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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.\" $FreeBSD$
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.\"
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.Dd July 8, 2000
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.Dt KENV 1
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.Os
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.Sh NAME
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.Nm kenv
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.Nd dump or modify the kernel environment
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.Sh SYNOPSIS
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.Nm
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.Op Fl h
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.Nm
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.Ar variable Ns Op = Ns Ar value
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.Nm
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.Fl u
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.Ar variable
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.Sh DESCRIPTION
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The
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.Nm
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utility will dump the kernel environment if
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invoked without arguments.
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If the
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.Fl h
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option is specified, it will limit the report to kernel probe hints.
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If an optional
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.Ar variable
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name is specified,
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.Nm
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will only report that value.
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If the
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.Fl u
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option is specified,
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.Nm
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will delete the given environment variable.
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If the environment variable is followed by an optional
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.Ar value ,
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.Nm
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will set the environment variable to this value.
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.Sh SEE ALSO
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.Xr kenv 2 ,
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.Xr loader 8
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.Sh HISTORY
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The
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.Nm
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utility appeared in
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.Fx 4.1.1 .
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@ -1,175 +0,0 @@
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/*
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* Copyright (c) 2000 Peter Wemm <peter@freebsd.org>
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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 AUTHORS 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 AUTHORS 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/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <err.h>
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#include <kenv.h>
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#include <unistd.h>
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static void usage(void);
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static int kdumpenv(void);
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static int kgetenv(char *);
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static int ksetenv(char *, char *);
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static int kunsetenv(char *);
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static int hflag = 0;
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static int uflag = 0;
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static void
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usage(void)
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{
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(void)fprintf(stderr, "%s\n%s\n%s\n",
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"usage: kenv [-h]",
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" kenv variable[=value]",
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" kenv -u variable");
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exit(1);
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}
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int
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main(int argc, char **argv)
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{
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char *env, *eq, *val;
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int ch, error;
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error = 0;
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val = NULL;
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env = NULL;
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while ((ch = getopt(argc, argv, "hu")) != -1) {
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switch (ch) {
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case 'h':
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hflag++;
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break;
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case 'u':
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uflag++;
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break;
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc > 0) {
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env = argv[0];
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eq = strchr(env, '=');
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if (eq != NULL) {
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*eq++ = '\0';
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val = eq;
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}
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argv++;
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argc--;
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}
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if (hflag && (env != NULL))
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usage();
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if ((argc > 0) || (uflag && (env == NULL)))
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usage();
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if (env == NULL)
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kdumpenv();
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else if (val == NULL) {
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if (uflag) {
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error = kunsetenv(env);
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if (error)
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warnx("unable to unset %s", env);
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} else {
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error = kgetenv(env);
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if (error)
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warnx("unable to get %s", env);
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}
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} else {
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error = ksetenv(env, val);
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if (error)
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warnx("unable to set %s to %s", env, val);
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}
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return (error);
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}
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static int
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kdumpenv()
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{
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char *buf, *cp;
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int len;
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len = kenv(KENV_DUMP, NULL, NULL, 0);
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len = len * 120 / 100;
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buf = malloc(len);
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if (buf == NULL)
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return (-1);
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/* Be defensive */
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memset(buf, 0, len);
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kenv(KENV_DUMP, NULL, buf, len);
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for (; *buf != '\0'; buf += strlen(buf) + 1) {
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if (hflag) {
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if (strncmp(buf, "hint.", 5) != 0)
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continue;
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}
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cp = strchr(buf, '=');
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if (cp == NULL)
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continue;
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*cp++ = '\0';
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printf("%s=\"%s\"\n", buf, cp);
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buf = cp;
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}
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return (0);
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}
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static int
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kgetenv(char *env)
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{
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char buf[1024];
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int ret;
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ret = kenv(KENV_GET, env, buf, sizeof(buf));
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if (ret == -1)
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return (ret);
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printf("%s\n", buf);
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return (0);
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}
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static int
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ksetenv(char *env, char *val)
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{
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int ret;
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ret = kenv(KENV_SET, env, val, strlen(val)+1);
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if (ret == 0)
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printf("%s=\"%s\"\n", env, val);
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return (ret);
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}
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static int
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kunsetenv(char *env)
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{
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int ret;
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ret = kenv(KENV_UNSET, env, NULL, 0);
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return (ret);
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}
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