busybox/coreutils/printenv.c
Denys Vlasenko 0ef64bdb40 *: make GNU licensing statement forms more regular
This change retains "or later" state! No licensing _changes_ here,
only form is adjusted (article, space between "GPL" and "v2" and so on).

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2010-08-16 20:14:46 +02:00

38 lines
833 B
C

/* vi: set sw=4 ts=4: */
/*
* printenv implementation for busybox
*
* Copyright (C) 2005 by Erik Andersen <andersen@codepoet.org>
* Copyright (C) 2005 by Mike Frysinger <vapier@gentoo.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
#include "libbb.h"
int printenv_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int printenv_main(int argc UNUSED_PARAM, char **argv)
{
int exit_code = EXIT_SUCCESS;
/* no variables specified, show whole env */
if (!argv[1]) {
int e = 0;
while (environ[e])
puts(environ[e++]);
} else {
/* search for specified variables and print them out if found */
char *arg, *env;
while ((arg = *++argv) != NULL) {
env = getenv(arg);
if (env)
puts(env);
else
exit_code = EXIT_FAILURE;
}
}
fflush_stdout_and_exit(exit_code);
}