mirror of
https://github.com/sheumann/hush.git
synced 2024-08-21 11:28:57 +00:00
add a printenv implementation
This commit is contained in:
parent
c0bc9652fd
commit
6d1d2e59bf
@ -164,6 +164,12 @@ config CONFIG_ENV
|
|||||||
a command; without options it displays the current
|
a command; without options it displays the current
|
||||||
environment.
|
environment.
|
||||||
|
|
||||||
|
config CONFIG_PRINTENV
|
||||||
|
bool "printenv"
|
||||||
|
default n
|
||||||
|
help
|
||||||
|
printenv is used to print all or part of environment.
|
||||||
|
|
||||||
config CONFIG_EXPR
|
config CONFIG_EXPR
|
||||||
bool "expr"
|
bool "expr"
|
||||||
default n
|
default n
|
||||||
|
@ -60,6 +60,7 @@ COREUTILS-$(CONFIG_MKNOD) += mknod.o
|
|||||||
COREUTILS-$(CONFIG_MV) += mv.o
|
COREUTILS-$(CONFIG_MV) += mv.o
|
||||||
COREUTILS-$(CONFIG_NICE) += nice.o
|
COREUTILS-$(CONFIG_NICE) += nice.o
|
||||||
COREUTILS-$(CONFIG_OD) += od.o
|
COREUTILS-$(CONFIG_OD) += od.o
|
||||||
|
COREUTILS-$(CONFIG_PRINTENV) += printenv.o
|
||||||
COREUTILS-$(CONFIG_PRINTF) += printf.o
|
COREUTILS-$(CONFIG_PRINTF) += printf.o
|
||||||
COREUTILS-$(CONFIG_PWD) += pwd.o
|
COREUTILS-$(CONFIG_PWD) += pwd.o
|
||||||
COREUTILS-$(CONFIG_REALPATH) += realpath.o
|
COREUTILS-$(CONFIG_REALPATH) += realpath.o
|
||||||
|
52
coreutils/printenv.c
Normal file
52
coreutils/printenv.c
Normal file
@ -0,0 +1,52 @@
|
|||||||
|
/*
|
||||||
|
* 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>
|
||||||
|
|
||||||
|
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);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
exit(EXIT_SUCCESS);
|
||||||
|
}
|
Loading…
Reference in New Issue
Block a user