alex/bcachefs-tools
1
0
Fork 0
mirror of https://github.com/koverstreet/bcachefs-tools.git synced 2025-02-22 00:00:03 +03:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Merge pull request #347 from g2p/format-safety

Browse Source 
Check for a sufficiently recent libblkid before formatting
This commit is contained in:
koverstreet 2024-10-27 16:13:55 -04:00 committed by GitHub
commit 64767d6443
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
c_src/tools-util.c
View File

@ -185,6 +185,24 @@ unsigned get_blocksize(int fd)
/* Open a block device, do magic blkid stuff to probe for existing filesystems: */
int open_for_format(struct dev_opts *dev, bool force)
{
int blkid_version_code = blkid_get_library_version(NULL, NULL);
if (blkid_version_code < 2401) {
if (force) {
fprintf(
stderr,
"Continuing with out of date libblkid %s because --force was passed.\n",
BLKID_VERSION);
} else {
// Reference for picking 2.40.1:
// https://mirrors.edge.kernel.org/pub/linux/utils/util-linux/v2.40/v2.40.1-ReleaseNotes
// https://github.com/util-linux/util-linux/issues/3103
die(
"Refusing to format when using libblkid %s\n"
"libblkid >= 2.40.1 is required to check for existing filesystems\n"
"Earlier versions may not recognize some bcachefs filesystems.\n", BLKID_VERSION);
}
}
blkid_probe pr;
const char *fs_type = NULL, *fs_label = NULL;
size_t fs_type_len, fs_label_len;