# include <slang/slang.h>
#endif
+#ifndef _XOPEN_SOURCE
+# define _XOPEN_SOURCE 500 /* for inclusion of get_wch */
+#endif
+
#ifdef HAVE_SLCURSES_H
# include <slcurses.h>
#elif defined(HAVE_SLANG_SLCURSES_H)
#include "colors.h"
#include "debug.h"
#include "list.h"
+#include "blkdev.h"
static const char *default_disks[] = {
#ifdef __GNU__
static struct cfdisk_menu *menu_pop(struct cfdisk *cf);
static void menu_refresh_size(struct cfdisk *cf);
+static int ui_end(void);
static int ui_refresh(struct cfdisk *cf);
static void ui_warnx(const char *fmt, ...);
static void ui_warn(const char *fmt, ...);
static int ui_menu_move(struct cfdisk *cf, int key);
static void ui_menu_resize(struct cfdisk *cf);
-static int ui_get_size(struct cfdisk *cf, const char *prompt, uintmax_t *res,
- uintmax_t low, uintmax_t up, int *expsize);
+static int ui_get_size(struct cfdisk *cf, const char *prompt, uint64_t *res,
+ uint64_t low, uint64_t up, int *expsize);
static int ui_enabled;
-static int ui_resize;
+static volatile sig_atomic_t sig_resize;
+static volatile sig_atomic_t sig_die;
/* ncurses LINES and COLS may be actual variables or *macros*, but we need
* something portable and writable */
static struct cfdisk_menuitem main_menuitems[] = {
{ 'b', N_("Bootable"), N_("Toggle bootable flag of the current partition") },
{ 'd', N_("Delete"), N_("Delete the current partition") },
+ { 'r', N_("Resize"), N_("Reduce or enlarge the current partition") },
{ 'n', N_("New"), N_("Create new partition from free space") },
{ 'q', N_("Quit"), N_("Quit program without writing changes") },
{ 't', N_("Type"), N_("Change the partition type") },
struct cfdisk {
struct fdisk_context *cxt; /* libfdisk context */
struct fdisk_table *table; /* partition table */
+ struct fdisk_table *original_layout; /* original on-disk PT */
struct cfdisk_menu *menu; /* the current menu */
#endif
unsigned int wrong_order :1, /* PT not in right order */
zero_start :1, /* ignore existing partition table */
+ device_is_used : 1, /* don't use re-read ioctl */
show_extra :1; /* show extra partinfo */
};
static void cfdisk_init_debug(void)
{
- __UL_INIT_DEBUG(cfdisk, CFDISK_DEBUG_, 0, CFDISK_DEBUG);
+ __UL_INIT_DEBUG_FROM_ENV(cfdisk, CFDISK_DEBUG_, 0, CFDISK_DEBUG);
}
/* Initialize output columns -- we follow libfdisk fields (usually specific
return fdisk_label_get_fields_ids(NULL, cf->cxt, &cf->fields, &cf->nfields);
}
+static void die_on_signal(void)
+{
+ DBG(MISC, ul_debug("die on signal."));
+ ui_end();
+ exit(EXIT_FAILURE);
+}
+
static void resize(void)
{
struct winsize ws;
DBG(UI, ul_debug("ui: resize refresh ui_cols=%zu, ui_lines=%zu",
ui_cols, ui_lines));
- ui_resize = 0;
+ sig_resize = 0;
}
/* Reads partition in tree-like order from scols
{
struct fdisk_partition *pa;
struct fdisk_label *lb;
- struct fdisk_iter *itr = NULL;
+ struct fdisk_iter *itr;
struct libscols_table *table = NULL;
struct libscols_iter *s_itr = NULL;
char *res = NULL;
* parno stored within struct fdisk_partition) */
/* remove all */
- fdisk_reset_iter(itr, FDISK_ITER_FORWARD);
- while (fdisk_table_next_partition(tb, itr, &pa) == 0)
- fdisk_table_remove_partition(tb, pa);
+ fdisk_reset_table(tb);
s_itr = scols_new_iter(SCOLS_ITER_FORWARD);
if (!s_itr)
refresh();
/* wait for keys */
- do {
+ while (!sig_die) {
key = getch();
- if (ui_resize)
+ if (sig_die)
+ break;
+ if (sig_resize)
ui_menu_resize(cf);
if (ui_menu_move(cf, key) == 0)
continue;
free(cm);
return 0;
}
- } while (1);
+ }
+
+ if (sig_die)
+ die_on_signal();
menu_pop(cf);
free(cm);
clrtoeol();
}
+static int __attribute__((__noreturn__)) ui_err(int rc, const char *fmt, ...)
+ {
+ va_list ap;
+ ui_end();
+
+ va_start(ap, fmt);
+ fprintf(stderr, "%s: ", program_invocation_short_name);
+ vfprintf(stderr, fmt, ap);
+ fprintf(stderr, ": %s\n", strerror(errno));
+ va_end(ap);
+
+ exit(rc);
+}
+
static int __attribute__((__noreturn__)) ui_errx(int rc, const char *fmt, ...)
{
va_list ap;
clrtoeol();
}
-static void die_on_signal(int dummy __attribute__((__unused__)))
+
+static void sig_handler_die(int dummy __attribute__((__unused__)))
{
- DBG(MISC, ul_debug("die on signal."));
- ui_end();
- exit(EXIT_FAILURE);
+ sig_die = 1;
}
-static void resize_on_signal(int dummy __attribute__((__unused__)))
+static void sig_handler_resize(int dummy __attribute__((__unused__)))
{
- DBG(MISC, ul_debug("resize on signal."));
- ui_resize = 1;
+ sig_resize = 1;
}
static void menu_refresh_size(struct cfdisk *cf)
/* setup SIGCHLD handler */
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
- sa.sa_handler = die_on_signal;
+ sa.sa_handler = sig_handler_die;
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
- sa.sa_handler = resize_on_signal;
+ sa.sa_handler = sig_handler_resize;
sigaction(SIGWINCH, &sa, NULL);
ui_enabled = 1;
if (!m->page_sz) /* small menu */
return (ui_lines - (cf->menu->nitems + 1)) / 2 + idx;
return (idx % m->page_sz) + 1;
- } else {
+ }
+
+ {
size_t len = MENU_H_ITEMWIDTH(m) + MENU_H_BETWEEN; /** item width */
size_t items = ui_cols / len; /* items per line */
if ((size_t) ui_cols <= nc)
return 0;
return (ui_cols - nc) / 2;
- } else {
+ }
+
+ {
size_t len = MENU_H_ITEMWIDTH(cf->menu) + MENU_H_BETWEEN; /* item width */
size_t items = ui_cols / len; /* items per line */
size_t extra = items < cf->menu->nitems ? /* extra space on line */
cf->fstab = mnt_new_table();
if (cf->fstab) {
mnt_table_set_cache(cf->fstab, cf->mntcache);
- mnt_table_parse_fstab(cf->fstab, NULL);
+ if (mnt_table_parse_fstab(cf->fstab, NULL) != 0) {
+ mnt_unref_table(cf->fstab);
+ cf->fstab = NULL;
+ }
}
}
if (cf->fstab)
assert(cf);
assert(cf->menu);
- if (key == ERR)
+ if (key == (int) ERR)
return 0; /* ignore errors */
m = cf->menu;
return 0;
}
- DBG(MENU, ul_debug(" no memu move key"));
+ DBG(MENU, ul_debug(" no menu move key"));
return 1;
}
/* but don't call me from ui_run(), this is for pop-up menus only */
static void ui_menu_resize(struct cfdisk *cf)
{
- DBG(MENU, ul_debug("memu resize/refresh"));
+ DBG(MENU, ul_debug("menu resize/refresh"));
resize();
ui_clean_menu(cf);
menu_refresh_size(cf);
if (!ui_enabled)
return -EINVAL;
- strsz = size_to_human_string(SIZE_SUFFIX_SPACE
+ strsz = size_to_human_string(SIZE_DECIMAL_2DIGITS
+ | SIZE_SUFFIX_SPACE
| SIZE_SUFFIX_3LETTER, bytes);
lb = fdisk_get_label(cf->cxt, NULL);
attron(A_BOLD);
ui_center(0, _("Disk: %s"), fdisk_get_devname(cf->cxt));
attroff(A_BOLD);
- ui_center(1, _("Size: %s, %ju bytes, %ju sectors"),
+ ui_center(1, _("Size: %s, %"PRIu64" bytes, %ju sectors"),
strsz, bytes, (uintmax_t) fdisk_get_nsectors(cf->cxt));
if (fdisk_get_disklabel_id(cf->cxt, &id) == 0 && id)
ui_center(2, _("Label: %s, identifier: %s"),
else
ui_center(2, _("Label: %s"), fdisk_label_get_name(lb));
free(strsz);
+ free(id);
ui_draw_table(cf);
ui_draw_menu(cf);
clrtoeol();
if (prompt) {
- mvaddstr(ln, cl, (char *) prompt);
+ mvaddstr(ln, cl, prompt);
cl += mbs_safe_width(prompt);
}
curs_set(1);
- while (1) {
+ while (!sig_die) {
wint_t c; /* we have fallback in widechar.h */
move(ln, cl);
defined(HAVE_LIBNCURSESW) && defined(HAVE_WIDECHAR)
if (get_wch(&c) == ERR) {
#else
- if ((c = getch()) == ERR) {
+ if ((c = getch()) == (wint_t) ERR) {
#endif
- if (ui_resize) {
+ if (sig_die)
+ break;
+ if (sig_resize) {
resize();
continue;
}
rc = mbs_edit_delete(edit);
break;
case '\b':
+ case KEY_DELETE:
case KEY_BACKSPACE:
rc = mbs_edit_backspace(edit);
break;
beep();
}
+ if (sig_die)
+ die_on_signal();
+
rc = strlen(edit->buf); /* success */
done:
move(ln, 0);
return rc;
}
-/* @res is default value as well as result in bytes */
-static int ui_get_size(struct cfdisk *cf, const char *prompt, uintmax_t *res,
- uintmax_t low, uintmax_t up, int *expsize)
+static int ui_get_size(struct cfdisk *cf, /* context */
+ const char *prompt, /* UI dialog string */
+ uint64_t *res, /* result in bytes */
+ uint64_t low, /* minimal size */
+ uint64_t up, /* maximal size */
+ int *expsize) /* explicitly specified size */
{
char buf[128];
- uintmax_t user = 0;
+ uint64_t user = 0;
ssize_t rc;
char *dflt = size_to_human_string(0, *res);
- DBG(UI, ul_debug("get_size (default=%ju)", *res));
+ DBG(UI, ul_debug("get_size (default=%"PRIu64")", *res));
ui_clean_info();
if (rc == 0) {
ui_warnx(_("Please, specify size."));
continue; /* nothing specified */
- } else if (rc == -CFDISK_ERR_ESC)
+ } if (rc == -CFDISK_ERR_ESC)
break; /* cancel dialog */
if (strcmp(buf, dflt) == 0)
insec = 1;
buf[len - 1] = '\0';
}
- rc = parse_size(buf, &user, &pwr); /* parse */
+ rc = parse_size(buf, (uintmax_t *)&user, &pwr); /* parse */
}
if (rc == 0) {
- DBG(UI, ul_debug("get_size user=%ju, power=%d, sectors=%s",
+ DBG(UI, ul_debug("get_size user=%"PRIu64", power=%d, in-sectors=%s",
user, pwr, insec ? "yes" : "no"));
if (insec)
user *= fdisk_get_sector_size(cf->cxt);
if (user < low) {
- ui_warnx(_("Minimum size is %ju bytes."), low);
+ ui_warnx(_("Minimum size is %"PRIu64" bytes."), low);
rc = -ERANGE;
}
if (user > up && pwr && user < up + (1ULL << pwr * 10))
user = up;
if (user > up) {
- ui_warnx(_("Maximum size is %ju bytes."), up);
+ ui_warnx(_("Maximum size is %"PRIu64" bytes."), up);
rc = -ERANGE;
}
if (rc == 0 && insec && expsize)
*res = user;
free(dflt);
- DBG(UI, ul_debug("get_size (result=%ju, rc=%zd)", *res, rc));
+ DBG(UI, ul_debug("get_size (result=%"PRIu64", rc=%zd)", *res, rc));
return rc;
}
ui_draw_menu(cf);
refresh();
- do {
+ while (!sig_die) {
int key = getch();
- if (ui_resize)
+ if (sig_die)
+ break;
+ if (sig_resize)
ui_menu_resize(cf);
if (ui_menu_move(cf, key) == 0)
continue;
case 'Q':
goto done;
}
- } while (1);
+ }
+ if (sig_die)
+ die_on_signal();
done:
menu_pop(cf);
if (codetypes) {
ui_info(_("Device does not contain a recognized partition table."));
- do {
+ while (!sig_die) {
int key;
if (refresh_menu) {
key = getch();
- if (ui_resize)
+ if (sig_die)
+ break;
+ if (sig_resize)
ui_menu_resize(cf);
if (ui_menu_move(cf, key) == 0)
continue;
refresh_menu = 1;
break;
}
- } while (1);
+ }
+ if (sig_die)
+ die_on_signal();
done:
menu_pop(cf);
free(cm);
ui_info(_("Press a key to continue."));
getch();
+
+ if (sig_die)
+ die_on_signal();
return 0;
}
ignore[i++] = 'd'; /* delete */
ignore[i++] = 't'; /* set type */
ignore[i++] = 'b'; /* set bootable */
+ ignore[i++] = 'r'; /* resize */
cf->menu->prefkey = 'n';
} else {
cf->menu->prefkey = 'q';
break;
case 'n': /* New */
{
- uint64_t start, size, dflt_size, secs;
+ uint64_t start, size, dflt_size, secs, max_size;
struct fdisk_partition *npa; /* the new partition */
int expsize = 0; /* size specified explicitly in sectors */
/* free space range */
start = fdisk_partition_get_start(pa);
- size = dflt_size = fdisk_partition_get_size(pa) * fdisk_get_sector_size(cf->cxt);
+ size = max_size = dflt_size = fdisk_partition_get_size(pa) * fdisk_get_sector_size(cf->cxt);
if (ui_get_size(cf, _("Partition size: "), &size,
fdisk_get_sector_size(cf->cxt),
- size, &expsize) == -CFDISK_ERR_ESC)
+ max_size, &expsize) == -CFDISK_ERR_ESC)
break;
secs = size / fdisk_get_sector_size(cf->cxt);
info = _("The type of partition %zu is unchanged.");
break;
}
+ case 'r': /* resize */
+ {
+ struct fdisk_partition *npa, *next;
+ uint64_t size, max_size, secs;
+
+ if (fdisk_partition_is_freespace(pa) || !fdisk_partition_has_start(pa))
+ return -EINVAL;
+
+ size = fdisk_partition_get_size(pa);
+
+ /* is the next freespace? */
+ next = fdisk_table_get_partition(cf->table, cf->lines_idx + 1);
+ if (next && fdisk_partition_is_freespace(next))
+ size += fdisk_partition_get_size(next);
+
+ size *= fdisk_get_sector_size(cf->cxt);
+ max_size = size;
+
+ if (ui_get_size(cf, _("New size: "), &size,
+ fdisk_get_sector_size(cf->cxt),
+ max_size, NULL) == -CFDISK_ERR_ESC)
+ break;
+ secs = size / fdisk_get_sector_size(cf->cxt);
+ npa = fdisk_new_partition();
+ if (!npa)
+ return -ENOMEM;
+
+ fdisk_partition_set_size(npa, secs);
+
+ rc = fdisk_set_partition(cf->cxt, n, npa);
+ fdisk_unref_partition(npa);
+ if (rc == 0) {
+ ref = 1;
+ info = _("Partition %zu resized.");
+ }
+ break;
+ }
case 's': /* Sort */
if (cf->wrong_order) {
fdisk_reorder_partitions(cf->cxt);
if (rc)
warn = _("Failed to write disklabel.");
else {
- fdisk_reread_partition_table(cf->cxt);
+ if (cf->device_is_used)
+ fdisk_reread_changes(cf->cxt, cf->original_layout);
+ else
+ fdisk_reread_partition_table(cf->cxt);
info = _("The partition table has been altered.");
}
cf->nwrites++;
if (!fdisk_has_label(cf->cxt) || cf->zero_start) {
rc = ui_create_label(cf);
- if (rc < 0)
- ui_errx(EXIT_FAILURE,
+ if (rc < 0) {
+ errno = -rc;
+ ui_err(EXIT_FAILURE,
_("failed to create a new disklabel"));
+ }
if (rc)
return rc;
}
ui_draw_extra(cf);
if (fdisk_is_readonly(cf->cxt))
- ui_warnx(_("Device is open in read-only mode."));
+ ui_warnx(_("Device is open in read-only mode. Changes will remain in memory only."));
else if (cf->wrong_order)
ui_info(_("Note that partition table entries are not in disk order now."));
- do {
+ while (!sig_die) {
int key = getch();
rc = 0;
- if (ui_resize)
+
+ if (sig_die)
+ break;
+ if (sig_resize)
/* Note that ncurses getch() returns ERR when interrupted
* by signal, but SLang does not interrupt at all. */
ui_resize_refresh(cf);
ui_table_goto(cf, (int) cf->lines_idx - cf->page_sz);
break;
}
+ /* fallthrough */
case KEY_HOME:
ui_table_goto(cf, 0);
break;
ui_table_goto(cf, cf->lines_idx + cf->page_sz);
break;
}
+ /* fallthrough */
case KEY_END:
ui_table_goto(cf, (int) cf->nlines - 1);
break;
if (rc == 1)
break; /* quit */
- } while (1);
+ }
menu_pop(cf);
return 0;
}
-static void __attribute__ ((__noreturn__)) usage(FILE *out)
+static void __attribute__((__noreturn__)) usage(void)
{
+ FILE *out = stdout;
fputs(USAGE_HEADER, out);
fprintf(out,
_(" %1$s [options] <disk>\n"), program_invocation_short_name);
fputs(_("Display or manipulate a disk partition table.\n"), out);
fputs(USAGE_OPTIONS, out);
- fputs(_(" -L, --color[=<when>] colorize output (auto, always or never)\n"), out);
+ fprintf(out,
+ _(" -L, --color[=<when>] colorize output (%s, %s or %s)\n"), "auto", "always", "never");
fprintf(out,
" %s\n", USAGE_COLORS_DEFAULT);
fputs(_(" -z, --zero start with zeroed partition table\n"), out);
+ fprintf(out,
+ _(" --lock[=<mode>] use exclusive device lock (%s, %s or %s)\n"), "yes", "no", "nonblock");
+ fputs(_(" -r, --read-only forced open cfdisk in read-only mode\n"), out);
fputs(USAGE_SEPARATOR, out);
- fputs(USAGE_HELP, out);
- fputs(USAGE_VERSION, out);
+ printf(USAGE_HELP_OPTIONS(26));
- fprintf(out, USAGE_MAN_TAIL("cfdisk(8)"));
- exit(out == stderr ? EXIT_FAILURE : EXIT_SUCCESS);
+ printf(USAGE_MAN_TAIL("cfdisk(8)"));
+ exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
- const char *diskpath = NULL;
+ const char *diskpath = NULL, *lockmode = NULL;
int rc, c, colormode = UL_COLORMODE_UNDEF;
+ int read_only = 0;
struct cfdisk _cf = { .lines_idx = 0 },
*cf = &_cf;
-
+ enum {
+ OPT_LOCK = CHAR_MAX + 1
+ };
static const struct option longopts[] = {
{ "color", optional_argument, NULL, 'L' },
+ { "lock", optional_argument, NULL, OPT_LOCK },
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "zero", no_argument, NULL, 'z' },
+ { "read-only", no_argument, NULL, 'r' },
{ NULL, 0, NULL, 0 },
};
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
- atexit(close_stdout);
+ close_stdout_atexit();
- while((c = getopt_long(argc, argv, "L::hVz", longopts, NULL)) != -1) {
+ while((c = getopt_long(argc, argv, "L::hVzr", longopts, NULL)) != -1) {
switch(c) {
case 'h':
- usage(stdout);
+ usage();
break;
case 'L':
colormode = UL_COLORMODE_AUTO;
colormode = colormode_or_err(optarg,
_("unsupported color mode"));
break;
+ case 'r':
+ read_only = 1;
+ break;
case 'V':
- printf(UTIL_LINUX_VERSION);
- return EXIT_SUCCESS;
+ print_version(EXIT_SUCCESS);
case 'z':
cf->zero_start = 1;
break;
+ case OPT_LOCK:
+ lockmode = "1";
+ if (optarg) {
+ if (*optarg == '=')
+ optarg++;
+ lockmode = optarg;
+ }
+ break;
default:
errtryhelp(EXIT_FAILURE);
}
} else
diskpath = argv[optind];
- rc = fdisk_assign_device(cf->cxt, diskpath, 0);
- if (rc == -EACCES)
+ rc = fdisk_assign_device(cf->cxt, diskpath, read_only);
+ if (rc == -EACCES && read_only == 0)
rc = fdisk_assign_device(cf->cxt, diskpath, 1);
if (rc != 0)
err(EXIT_FAILURE, _("cannot open %s"), diskpath);
+ if (!fdisk_is_readonly(cf->cxt)) {
+ if (blkdev_lock(fdisk_get_devfd(cf->cxt), diskpath, lockmode) != 0)
+ return EXIT_FAILURE;
+
+ cf->device_is_used = fdisk_device_is_used(cf->cxt);
+ fdisk_get_partitions(cf->cxt, &cf->original_layout);
+ }
+
/* Don't use err(), warn() from this point */
ui_init(cf);
ui_run(cf);
cfdisk_free_lines(cf);
free(cf->linesbuf);
+ free(cf->fields);
fdisk_unref_table(cf->table);
#ifdef HAVE_LIBMOUNT
projects / thirdparty / util-linux.git / blobdiff