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magicvars: can now also list values 

Also uppercased the abbreviation GPIO in printf.

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Holger Schurig 2014-05-15 11:08:56 +02:00 committed by Sascha Hauer
parent 2071940c76
commit 0b6d24c0d7
1 changed files with 29 additions and 1 deletions
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30
commands/magicvar.c
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@ -1,21 +1,49 @@
#include <common.h>
#include <command.h>
#include <getopt.h>
#include <environment.h>
#include <magicvar.h>
static int do_magicvar(int argc, char *argv[])
{
struct magicvar *m;
int opt;
int verbose = 0;
while ((opt = getopt(argc, argv, "v")) > 0) {
switch (opt) {
case 'v':
verbose = 1;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
for (m = &__barebox_magicvar_start;
m != &__barebox_magicvar_end;
m++)
m++) {
printf("%-32s %s\n", m->name, m->description);
if (verbose) {
const char *val = getenv(m->name);
if (val && strlen(val))
printf(" %s\n", val);
}
}
return 0;
}
BAREBOX_CMD_HELP_START(magicvar)
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-v", "verbose (list all value if there is one)")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(magicvar)
.cmd = do_magicvar,
BAREBOX_CMD_DESC("list information about magic variables")
BAREBOX_CMD_OPTS("[-v]")
BAREBOX_CMD_HELP(cmd_magicvar_help)
BAREBOX_CMD_GROUP(CMD_GRP_ENV)
BAREBOX_CMD_END