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mdmon: make switchroot an undecorated option 

Simplify the usage from:
	mdmon [--switch-root dir] /device/name/for/container
to...
	mdmon /device/name/for/container [target_dir]

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-01-20 01:36:50 -07:00
parent 66afdfa977
commit 5746141e3f
1 changed files with 5 additions and 9 deletions
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14
mdmon.c
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@ -271,7 +271,7 @@ static int do_fork(void)
void usage(void)
{
fprintf(stderr, "Usage: mdmon [--switch-root dir] /device/name/for/container\n");
fprintf(stderr, "Usage: mdmon /device/name/for/container [target_dir]\n");
exit(2);
}
@ -287,17 +287,11 @@ int main(int argc, char *argv[])
int status = 0;
switch (argc) {
case 3:
switchroot = argv[2];
case 2:
container_name = argv[1];
break;
case 4:
if (strcmp(argv[1], "--switch-root") != 0) {
fprintf(stderr, "mdmon: unknown argument %s\n", argv[1]);
usage();
}
switchroot = argv[2];
container_name = argv[3];
break;
default:
usage();
}
@ -355,6 +349,8 @@ int mdmon(char *devname, int devnum, int scan, char *switchroot)
int status;
int ignore;
dprintf("starting mdmon for %s in %s\n",
devname, switchroot ? : "/");
mdfd = open_dev(devnum);
if (mdfd < 0) {
fprintf(stderr, "mdmon: %s: %s\n", devname,