mirror of
https://github.com/sheumann/hush.git
synced 2024-11-14 20:09:05 +00:00
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/*
|
|
* printenv implementation for busybox
|
|
*
|
|
* Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
|
|
* Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "busybox.h"
|
|
|
|
int printenv_main(int argc, char **argv)
|
|
{
|
|
extern char **environ;
|
|
int e = 0;
|
|
|
|
/* no variables specified, show whole env */
|
|
if (argc == 1)
|
|
while (environ[e])
|
|
puts(environ[e++]);
|
|
|
|
/* search for specified variables and print them out if found */
|
|
else {
|
|
int i;
|
|
size_t l;
|
|
char *arg, *env;
|
|
|
|
for (i=1; (arg = argv[i]); ++i)
|
|
for (; (env = environ[e]); ++e) {
|
|
l = strlen(arg);
|
|
if (!strncmp(env, arg, l) && env[l] == '=')
|
|
puts(env + l + 1);
|
|
}
|
|
}
|
|
|
|
bb_fflush_stdout_and_exit(0);
|
|
}
|