static void sfdisk_init(struct sfdisk *sf)
{
fdisk_init_debug(0);
sfdiskprog_init_debug();
sf->cxt = fdisk_new_context();
if (!sf->cxt)
err(EXIT_FAILURE, _("failed to allocate libfdisk context"));
fdisk_set_ask(sf->cxt, ask_callback, (void *) sf);
if (sf->label_nested) {
struct fdisk_context *x = fdisk_new_nested_context(sf->cxt,
sf->label_nested);
if (!x)
err(EXIT_FAILURE, _("failed to allocate nested libfdisk context"));
/* the original context is available by fdisk_get_parent() */
sf->cxt = x;
}
}
static int test_listitems(struct fdisk_test *ts, int argc, char *argv[])
{
const char *disk = argv[1];
struct fdisk_context *cxt;
struct fdisk_labelitem *item;
int i = 0, rc;
cxt = fdisk_new_context();
item = fdisk_new_labelitem();
fdisk_assign_device(cxt, disk, 1);
do {
rc = fdisk_get_disklabel_item(cxt, i++, item);
switch (rc) {
case 0: /* success */
{
const char *name = fdisk_labelitem_get_name(item);
const char *str;
uint64_t num;
if (fdisk_labelitem_is_string(item)
&& fdisk_labelitem_get_data_string(item, &str) == 0)
printf("%s: %s\n", name, str);
else if (fdisk_labelitem_get_data_u64(item, &num) == 0)
printf("%s: %ju\n", name, num);
break;
}
case 1: /* item unsuported by label -- ignore */
rc = 0;
break;
case 2: /* end (out of range) */
break;
default: /* error */
break;
}
} while (rc == 0);
fdisk_unref_labelitem(item);
fdisk_unref_context(cxt);
return rc < 0 ? rc : 0;
}
/* usable for example in usage() */
void list_available_columns(FILE *out)
{
size_t i;
int termwidth;
struct fdisk_label *lb = NULL;
struct fdisk_context *cxt = fdisk_new_context();
if (!cxt)
return;
termwidth = get_terminal_width();
if (termwidth <= 0)
termwidth = 80;
fprintf(out, _("\nAvailable columns (for -o):\n"));
while (fdisk_next_label(cxt, &lb) == 0) {
size_t width = 6; /* label name and separators */
fprintf(out, " %s:", fdisk_label_get_name(lb));
for (i = 1; i < FDISK_NFIELDS; i++) {
const struct fdisk_field *fl = fdisk_label_get_field(lb, i);
const char *name = fl ? fdisk_field_get_name(fl) : NULL;
size_t len;
if (!name)
continue;
len = strlen(name) + 1;
if (width + len > (size_t) termwidth) {
fputs("\n ", out);
width = 6;
}
fprintf(out, " %s", name);
width += len;
}
fputc('\n', out);
}
fdisk_unref_context(cxt);
}
int main(int argc, char **argv)
{
int i, c, act = ACT_FDISK;
int colormode = UL_COLORMODE_AUTO;
struct fdisk_context *cxt;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
atexit(close_stdout);
fdisk_init_debug(0);
cxt = fdisk_new_context();
if (!cxt)
err(EXIT_FAILURE, _("failed to allocate libfdisk context"));
fdisk_context_set_ask(cxt, ask_callback, NULL);
while ((c = getopt(argc, argv, "b:c::C:hH:lL::sS:t:u::vV")) != -1) {
switch (c) {
case 'b':
{
size_t sz = strtou32_or_err(optarg,
_("invalid sector size argument"));
if (sz != 512 && sz != 1024 && sz != 2048 && sz != 4096)
usage(stderr);
fdisk_save_user_sector_size(cxt, sz, sz);
break;
}
case 'C':
fdisk_save_user_geometry(cxt,
strtou32_or_err(optarg,
_("invalid cylinders argument")),
0, 0);
break;
case 'c':
if (optarg) {
/* this setting is independent on the current
* actively used label */
struct fdisk_label *lb = fdisk_context_get_label(cxt, "dos");
if (!lb)
err(EXIT_FAILURE, _("not found DOS label driver"));
if (strcmp(optarg, "=dos") == 0)
fdisk_dos_enable_compatible(lb, TRUE);
else if (strcmp(optarg, "=nondos") == 0)
fdisk_dos_enable_compatible(lb, FALSE);
else
usage(stderr);
}
/* use default if no optarg specified */
break;
case 'H':
fdisk_save_user_geometry(cxt, 0,
strtou32_or_err(optarg,
_("invalid heads argument")),
0);
break;
case 'S':
fdisk_save_user_geometry(cxt, 0, 0,
strtou32_or_err(optarg,
_("invalid sectors argument")));
break;
case 'l':
act = ACT_LIST;
break;
case 'L':
if (optarg)
colormode = colormode_or_err(optarg,
_("unsupported color mode"));
break;
case 's':
act = ACT_SHOWSIZE;
break;
case 't':
{
struct fdisk_label *lb = NULL;
while (fdisk_context_next_label(cxt, &lb) == 0)
fdisk_label_set_disabled(lb, 1);
lb = fdisk_context_get_label(cxt, optarg);
if (!lb)
errx(EXIT_FAILURE, _("unsupported disklabel: %s"), optarg);
fdisk_label_set_disabled(lb, 0);
}
case 'u':
if (optarg && *optarg == '=')
optarg++;
if (fdisk_context_set_unit(cxt, optarg) != 0)
usage(stderr);
break;
case 'V':
case 'v':
printf(UTIL_LINUX_VERSION);
return EXIT_SUCCESS;
case 'h':
usage(stdout);
default:
usage(stderr);
}
}
if (argc-optind != 1 && fdisk_has_user_device_properties(cxt))
warnx(_("The device properties (sector size and geometry) should"
" be used with one specified device only."));
colors_init(colormode);
switch (act) {
case ACT_LIST:
fdisk_context_enable_listonly(cxt, 1);
if (argc > optind) {
int k;
for (k = optind; k < argc; k++)
print_device_pt(cxt, argv[k]);
} else
print_all_devices_pt(cxt);
break;
case ACT_SHOWSIZE:
/* deprecated */
if (argc - optind <= 0)
usage(stderr);
for (i = optind; i < argc; i++) {
if (argc - optind == 1)
printf("%llu\n", get_dev_blocks(argv[i]));
else
printf("%s: %llu\n", argv[i], get_dev_blocks(argv[i]));
}
break;
case ACT_FDISK:
if (argc-optind != 1)
usage(stderr);
if (fdisk_context_assign_device(cxt, argv[optind], 0) != 0)
err(EXIT_FAILURE, _("cannot open %s"), argv[optind]);
/* Here starts interactive mode, use fdisk_{warn,info,..} functions */
color_enable(UL_COLOR_GREEN);
fdisk_info(cxt, _("Welcome to fdisk (%s)."), PACKAGE_STRING);
color_disable();
fdisk_info(cxt, _("Changes will remain in memory only, until you decide to write them.\n"
"Be careful before using the write command.\n"));
fflush(stdout);
if (!fdisk_dev_has_disklabel(cxt)) {
fdisk_warnx(cxt, _("Device does not contain a recognized partition table."));
fdisk_create_disklabel(cxt, NULL);
}
while (1)
process_fdisk_menu(&cxt);
}
fdisk_free_context(cxt);
return EXIT_SUCCESS;
}