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git.ipfire.org Git - people/ms/u-boot.git/blob - tools/env/fw_env_main.c
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 * Command line user interface to firmware (=U-Boot) environment.
28 * fw_printenv [ name ... ]
29 * - prints the values of the environment variables
30 * "name", or the whole environment if no names are
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
46 #define CMD_PRINTENV "fw_printenv"
47 #define CMD_SETENV "fw_setenv"
50 main(int argc
, char *argv
[])
53 char *cmdname
= *argv
;
55 if ((p
= strrchr (cmdname
, '/')) != NULL
) {
59 if (strcmp(cmdname
, CMD_PRINTENV
) == 0) {
61 fw_printenv (argc
, argv
);
63 return (EXIT_SUCCESS
);
65 } else if (strcmp(cmdname
, CMD_SETENV
) == 0) {
67 if (fw_setenv (argc
, argv
) != 0)
68 return (EXIT_FAILURE
);
70 return (EXIT_SUCCESS
);
74 "Identity crisis - may be called as `" CMD_PRINTENV
75 "' or as `" CMD_SETENV
"' but not as `%s'\n",
77 return (EXIT_FAILURE
);