?? fw_env_main.c
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/* * (C) Copyright 2000 * 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 [ name ... ] * - prints the values of the 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 sinlge 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"intmain(int argc, char *argv[]){ char *p; char *cmdname = *argv; if ((p = strrchr (cmdname, '/')) != NULL) { cmdname = p + 1; } if (strcmp(cmdname, CMD_PRINTENV) == 0) { fw_printenv (argc, argv); 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);}
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