2 * Copyright (c) 1988, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 static const char copyright[] =
36 "@(#) Copyright (c) 1988, 1993, 1994\n\
37 The Regents of the University of California. All rights reserved.\n";
42 static char sccsid[] = "@(#)env.c 8.3 (Berkeley) 4/2/94";
46 #include <sys/cdefs.h>
47 __FBSDID("$FreeBSD$");
58 extern char **environ;
62 static void usage(void);
65 main(int argc, char **argv)
67 char *altpath, **ep, *p, **parg;
73 while ((ch = getopt(argc, argv, "-iP:S:v")) != -1)
80 altpath = strdup(optarg);
84 * The -S option, for "split string on spaces, with
85 * support for some simple substitutions"...
87 split_spaces(optarg, &optind, &argc, &argv);
91 if (env_verbosity > 1)
92 fprintf(stderr, "#env verbosity now at %d\n",
103 fprintf(stderr, "#env clearing environ\n");
105 for (argv += optind; *argv && (p = strchr(*argv, '=')); ++argv) {
107 fprintf(stderr, "#env setenv:\t%s\n", *argv);
108 (void)setenv(*argv, ++p, 1);
112 search_paths(altpath, argv);
114 fprintf(stderr, "#env executing:\t%s\n", *argv);
115 for (parg = argv, argc = 0; *parg; parg++, argc++)
116 fprintf(stderr, "#env arg[%d]=\t'%s'\n",
118 if (env_verbosity > 1)
122 err(errno == ENOENT ? 127 : 126, "%s", *argv);
124 for (ep = environ; *ep; ep++)
125 (void)printf("%s\n", *ep);
132 (void)fprintf(stderr,
133 "usage: env [-iv] [-P utilpath] [-S string] [name=value ...]"
134 " [utility [argument ...]]\n");