mirror of
https://source.denx.de/u-boot/u-boot.git
synced 2025-10-31 08:21:36 +01:00
bc11756daf
Changed implementation such that fw_printenv returns failure status when one or more specified variables do not exist or when incorrect command syntax is used. This aids scripting fw_printenv such that the script can key of the return status rather than relying on standard error "scraping". Signed-off-by: Grant Erickson <gerickson@nuovations.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/*
|
|
* (C) Copyright 2000-2008
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* Command line user interface to firmware (=U-Boot) environment.
|
|
*
|
|
* Implements:
|
|
* fw_printenv [[ -n name ] | [ name ... ]]
|
|
* - prints the value of a single environment variable
|
|
* "name", the ``name=value'' pairs of one or more
|
|
* environment variables "name", or the whole
|
|
* environment if no names are specified.
|
|
* fw_setenv name [ value ... ]
|
|
* - If a name without any values is given, the variable
|
|
* with this name is deleted from the environment;
|
|
* otherwise, all "value" arguments are concatenated,
|
|
* separated by single blank characters, and the
|
|
* resulting string is assigned to the environment
|
|
* variable "name"
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include "fw_env.h"
|
|
|
|
#define CMD_PRINTENV "fw_printenv"
|
|
#define CMD_SETENV "fw_setenv"
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
char *p;
|
|
char *cmdname = *argv;
|
|
|
|
if ((p = strrchr (cmdname, '/')) != NULL) {
|
|
cmdname = p + 1;
|
|
}
|
|
|
|
if (strcmp(cmdname, CMD_PRINTENV) == 0) {
|
|
|
|
if (fw_printenv (argc, argv) != 0)
|
|
return (EXIT_FAILURE);
|
|
|
|
return (EXIT_SUCCESS);
|
|
|
|
} else if (strcmp(cmdname, CMD_SETENV) == 0) {
|
|
|
|
if (fw_setenv (argc, argv) != 0)
|
|
return (EXIT_FAILURE);
|
|
|
|
return (EXIT_SUCCESS);
|
|
|
|
}
|
|
|
|
fprintf (stderr,
|
|
"Identity crisis - may be called as `" CMD_PRINTENV
|
|
"' or as `" CMD_SETENV "' but not as `%s'\n",
|
|
cmdname);
|
|
return (EXIT_FAILURE);
|
|
}
|