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mount: implement -v option to print available filesystems 

It's useful to know which filesystems a barebox binary supports.
Add a -v option to the mount command to find it out.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2013-09-27 23:26:00 +02:00
parent d915fcbc6d
commit 7a1c5027f9
2 changed files with 26 additions and 10 deletions
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35
commands/mount.c
View File

@ -31,27 +31,40 @@
static int do_mount(int argc, char *argv[])
{
int opt;
int ret = 0;
int ret = 0, verbose = 0;
struct fs_device_d *fsdev;
struct driver_d *drv;
const char *type = NULL;
const char *mountpoint, *dev;
if (argc == 1) {
while ((opt = getopt(argc, argv, "t:v")) > 0) {
switch (opt) {
case 't':
type = optarg;
break;
case 'v':
verbose++;
break;
}
}
if (argc == optind) {
for_each_fs_device(fsdev) {
printf("%s on %s type %s\n",
fsdev->backingstore ? fsdev->backingstore : "none",
fsdev->path,
fsdev->dev.name);
}
return 0;
}
while ((opt = getopt(argc, argv, "t:")) > 0) {
switch (opt) {
case 't':
type = optarg;
break;
if (verbose) {
printf("\nSupported filesystems:\n\n");
bus_for_each_driver(&fs_bus, drv) {
struct fs_driver_d * fsdrv = drv_to_fs_driver(drv);
printf("%s\n", fsdrv->drv.name);
}
}
return 0;
}
if (argc < optind + 2)
@ -77,7 +90,9 @@ static int do_mount(int argc, char *argv[])
}
BAREBOX_CMD_HELP_START(mount)
BAREBOX_CMD_HELP_USAGE("mount [[-t <fstype] <device> <mountpoint>]\n")
BAREBOX_CMD_HELP_USAGE("mount [[OPTIONS] <device> <mountpoint>]\n")
BAREBOX_CMD_HELP_OPT("-t <type>", "specify filesystem type\n")
BAREBOX_CMD_HELP_OPT("-v", "be more verbose\n")
BAREBOX_CMD_HELP_SHORT("Mount a filesystem of a given type to a mountpoint.\n")
BAREBOX_CMD_HELP_SHORT("If no fstype is specified, try to detect it automatically.\n")
BAREBOX_CMD_HELP_SHORT("If no argument is given, list mounted filesystems.\n")

1
include/fs.h
View File

@ -87,6 +87,7 @@ struct fs_driver_d {
extern struct list_head fs_device_list;
#define for_each_fs_device(f) list_for_each_entry(f, &fs_device_list, list)
extern struct bus_type fs_bus;
struct fs_device_d {
char *backingstore; /* the device we are associated with */