void check_plausibility(const char *device)
{
int val;
ext2fs_struct_stat s;
val = ext2fs_stat(device, &s);
if(val == -1) {
fprintf(stderr, _("Could not stat %s --- %s\n"),
device, error_message(errno));
if (errno == ENOENT)
fputs(_("\nThe device apparently does not exist; "
"did you specify it correctly?\n"), stderr);
exit(1);
}
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
/* On FreeBSD, all disk devices are character specials */
if (!S_ISBLK(s.st_mode) && !S_ISCHR(s.st_mode))
#else
if (!S_ISBLK(s.st_mode))
#endif
{
printf(_("%s is not a block special device.\n"), device);
proceed_question();
return;
}
#ifdef HAVE_LINUX_MAJOR_H
#ifndef MAJOR
#define MAJOR(dev) ((dev)>>8)
#define MINOR(dev) ((dev) & 0xff)
#endif
#ifndef SCSI_BLK_MAJOR
#ifdef SCSI_DISK0_MAJOR
#ifdef SCSI_DISK8_MAJOR
#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR) || \
((M) >= SCSI_DISK8_MAJOR && (M) <= SCSI_DISK15_MAJOR))
#else
#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
#endif /* defined(SCSI_DISK8_MAJOR) */
#define SCSI_BLK_MAJOR(M) (SCSI_DISK_MAJOR((M)) || (M) == SCSI_CDROM_MAJOR)
#else
#define SCSI_BLK_MAJOR(M) ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
#endif /* defined(SCSI_DISK0_MAJOR) */
#endif /* defined(SCSI_BLK_MAJOR) */
if (((MAJOR(s.st_rdev) == HD_MAJOR &&
MINOR(s.st_rdev)%64 == 0) ||
(SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
MINOR(s.st_rdev)%16 == 0))) {
printf(_("%s is entire device, not just one partition!\n"),
device);
proceed_question();
}
#endif
}
void check_plausibility(const char *device, int force)
{
int val;
struct stat s;
val = stat(device, &s);
if (force)
return;
if (val == -1)
bb_perror_msg_and_die("can't stat '%s'", device);
if (!S_ISBLK(s.st_mode)) {
printf("%s is not a block special device.\n", device);
proceed_question();
return;
}
#ifdef HAVE_LINUX_MAJOR_H
#ifndef MAJOR
#define MAJOR(dev) ((dev)>>8)
#define MINOR(dev) ((dev) & 0xff)
#endif
#ifndef SCSI_BLK_MAJOR
#ifdef SCSI_DISK0_MAJOR
#ifdef SCSI_DISK8_MAJOR
#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR) || \
((M) >= SCSI_DISK8_MAJOR && (M) <= SCSI_DISK15_MAJOR))
#else
#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
#endif /* defined(SCSI_DISK8_MAJOR) */
#define SCSI_BLK_MAJOR(M) (SCSI_DISK_MAJOR((M)) || (M) == SCSI_CDROM_MAJOR)
#else
#define SCSI_BLK_MAJOR(M) ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
#endif /* defined(SCSI_DISK0_MAJOR) */
#endif /* defined(SCSI_BLK_MAJOR) */
if (((MAJOR(s.st_rdev) == HD_MAJOR &&
MINOR(s.st_rdev)%64 == 0) ||
(SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
MINOR(s.st_rdev)%16 == 0))) {
printf("%s is entire device, not just one partition!\n", device);
proceed_question();
}
#endif
}
/*
* return 1 if the device looks plausible, creating the file if necessary
*/
int check_plausibility(const char *device, int flags, int *ret_is_dev)
{
int fd, ret, is_dev = 0;
ext2fs_struct_stat s;
int fl = O_RDONLY;
blkid_cache cache = NULL;
char *fs_type = NULL;
char *fs_label = NULL;
fd = ext2fs_open_file(device, fl, 0666);
if ((fd < 0) && (errno == ENOENT) && (flags & CREATE_FILE)) {
fl |= O_CREAT;
fd = ext2fs_open_file(device, fl, 0666);
if (fd >= 0 && (flags & VERBOSE_CREATE))
printf(_("Creating regular file %s\n"), device);
}
if (fd < 0) {
fprintf(stderr, _("Could not open %s: %s\n"),
device, error_message(errno));
if (errno == ENOENT)
fputs(_("\nThe device apparently does not exist; "
"did you specify it correctly?\n"), stderr);
exit(1);
}
if (ext2fs_fstat(fd, &s) < 0) {
perror("stat");
exit(1);
}
close(fd);
if (S_ISBLK(s.st_mode))
is_dev = 1;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
/* On FreeBSD, all disk devices are character specials */
if (S_ISCHR(s.st_mode))
is_dev = 1;
#endif
if (ret_is_dev)
*ret_is_dev = is_dev;
if ((flags & CHECK_BLOCK_DEV) && !is_dev) {
printf(_("%s is not a block special device.\n"), device);
return 0;
}
/*
* Note: we use the older-style blkid API's here because we
* want as much functionality to be available when using the
* internal blkid library, when e2fsprogs is compiled for
* non-Linux systems that will probably not have the libraries
* from util-linux available. We only use the newer
* blkid-probe interfaces to access functionality not
* available in the original blkid library.
*/
if ((flags & CHECK_FS_EXIST) && blkid_get_cache(&cache, NULL) >= 0) {
fs_type = blkid_get_tag_value(cache, "TYPE", device);
if (fs_type)
fs_label = blkid_get_tag_value(cache, "LABEL", device);
blkid_put_cache(cache);
}
if (fs_type) {
if (fs_label)
printf(_("%s contains a %s file system "
"labelled '%s'\n"), device, fs_type, fs_label);
else
printf(_("%s contains a %s file system\n"), device,
fs_type);
if (strncmp(fs_type, "ext", 3) == 0)
print_ext2_info(device);
free(fs_type);
free(fs_label);
return 0;
}
ret = check_partition_table(device);
if (ret >= 0)
return ret;
#ifdef HAVE_LINUX_MAJOR_H
#ifndef MAJOR
#define MAJOR(dev) ((dev)>>8)
#define MINOR(dev) ((dev) & 0xff)
#endif
#ifndef SCSI_BLK_MAJOR
#ifdef SCSI_DISK0_MAJOR
#ifdef SCSI_DISK8_MAJOR
#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR) || \
((M) >= SCSI_DISK8_MAJOR && (M) <= SCSI_DISK15_MAJOR))
#else
#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
#endif /* defined(SCSI_DISK8_MAJOR) */
#define SCSI_BLK_MAJOR(M) (SCSI_DISK_MAJOR((M)) || (M) == SCSI_CDROM_MAJOR)
#else
#define SCSI_BLK_MAJOR(M) ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
#endif /* defined(SCSI_DISK0_MAJOR) */
#endif /* defined(SCSI_BLK_MAJOR) */
if (((MAJOR(s.st_rdev) == HD_MAJOR &&
MINOR(s.st_rdev)%64 == 0) ||
(SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
MINOR(s.st_rdev)%16 == 0))) {
printf(_("%s is entire device, not just one partition!\n"),
device);
return 0;
}
#endif
return 1;
}
