| wdenk | 6aff311 | 2002-12-17 01:51:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2000 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * Command line user interface to firmware (=PPCBoot) environment. |
| 26 | * |
| 27 | * Implements: |
| 28 | * fw_printenv [ name ... ] |
| 29 | * - prints the values of the environment variables |
| 30 | * "name", or the whole environment if no names are |
| 31 | * specified |
| 32 | * fw_setenv name [ value ... ] |
| 33 | * - If a name without any values is given, the variable |
| 34 | * with this name is deleted from the environment; |
| 35 | * otherwise, all "value" arguments are concatenated, |
| 36 | * separated by sinlge blank characters, and the |
| 37 | * resulting string is assigned to the environment |
| 38 | * variable "name" |
| 39 | */ |
| 40 | |
| 41 | #include <stdio.h> |
| 42 | #include <string.h> |
| 43 | #include <stdlib.h> |
| 44 | #include "fw_env.h" |
| 45 | |
| 46 | #define CMD_PRINTENV "fw_printenv" |
| 47 | #define CMD_SETENV "fw_setenv" |
| 48 | |
| 49 | int |
| 50 | main(int argc, char *argv[]) |
| 51 | { |
| 52 | char *p; |
| 53 | char *cmdname = *argv; |
| 54 | |
| 55 | if ((p = strrchr (cmdname, '/')) != NULL) { |
| 56 | cmdname = p + 1; |
| 57 | } |
| 58 | |
| 59 | if (strcmp(cmdname, CMD_PRINTENV) == 0) { |
| 60 | |
| 61 | fw_printenv (argc, argv); |
| 62 | |
| 63 | return (EXIT_SUCCESS); |
| 64 | |
| 65 | } else if (strcmp(cmdname, CMD_SETENV) == 0) { |
| 66 | |
| 67 | if (fw_setenv (argc, argv) != 0) |
| 68 | return (EXIT_FAILURE); |
| 69 | |
| 70 | return (EXIT_SUCCESS); |
| 71 | } |
| 72 | |
| 73 | fprintf (stderr, |
| 74 | "Identity crisis - may be called as `" CMD_PRINTENV |
| 75 | "' or as `" CMD_SETENV "' but not as `%s'\n", |
| 76 | cmdname); |
| 77 | return (EXIT_FAILURE); |
| 78 | } |