source: branches/stable/mindi-busybox/coreutils/printenv.c @ 821

Last change on this file since 821 was 821, checked in by Bruno Cornec, 14 years ago

Addition of busybox 1.2.1 as a mindi-busybox new package
This should avoid delivering binary files in mindi not built there (Fedora and Debian are quite serious about that)

File size: 1.4 KB
Line 
1/*
2 * printenv implementation for busybox
3 *
4 * Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
5 * Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#include <stdio.h>
24#include <string.h>
25#include <stdlib.h>
26#include "busybox.h"
27
28int printenv_main(int argc, char **argv)
29{
30    extern char **environ;
31    int e = 0;
32
33    /* no variables specified, show whole env */
34    if (argc == 1)
35        while (environ[e])
36            puts(environ[e++]);
37
38    /* search for specified variables and print them out if found */
39    else {
40        int i;
41        size_t l;
42        char *arg, *env;
43
44        for (i=1; (arg = argv[i]); ++i)
45            for (; (env = environ[e]); ++e) {
46                l = strlen(arg);
47                if (!strncmp(env, arg, l) && env[l] == '=')
48                    puts(env + l + 1);
49            }
50    }
51
52    bb_fflush_stdout_and_exit(0);
53}
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