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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @brief Set an environment variable
*/
/*
* COPYRIGHT (C) 2009 Chris Johns <chrisj@rtems.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <rtems.h>
#include <rtems/shell.h>
#include "internal.h"
static int rtems_shell_main_setenv(int argc, char *argv[])
{
char* env = NULL;
char* string = NULL;
int len = 0;
int arg;
char* p;
if (argc <= 2) {
printf("error: no variable or string\n");
return 1;
}
env = argv[1];
for (arg = 2; arg < argc; arg++)
len += strlen(argv[arg]);
len += argc - 2 - 1;
string = malloc(len + 1);
if (!string) {
printf("error: no memory\n");
return 1;
}
for (arg = 2, p = string; arg < argc; arg++) {
strcpy(p, argv[arg]);
p += strlen(argv[arg]);
if (arg < (argc - 1)) {
*p = ' ';
p++;
}
}
if (setenv(env, string, 1) < 0) {
printf( "error: %s\n", strerror(errno) );
free( string );
return 1;
}
free( string );
return 0;
}
rtems_shell_cmd_t rtems_shell_SETENV_Command = {
"setenv", /* name */
"setenv [var] [string]", /* usage */
"misc", /* topic */
rtems_shell_main_setenv, /* command */
NULL, /* alias */
NULL /* next */
};
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