diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2020-01-16 15:35:29 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-01-16 15:35:29 -0500 |
| commit | f6c5ad97daf7b266d66987476da33d6dfe341b36 (patch) | |
| tree | 5e5d324aeb54d2235b4dac4f29156c2bf5562f06 | |
| parent | 00179a29867b72c47e074d8e0babe6622d074dba (diff) | |
| download | e2fsprogs-f6c5ad97daf7b266d66987476da33d6dfe341b36.tar.gz | |
libext2fs: reserve the error code EXT2_ET_NO_GDESC
This is really only needed in the 1.46+ where the EXT2_FLAG_SUPER_ONLY
is honored by ext2fs_open to only read the superblock, so that
fs->group_desc can be NULL. We define it in the maint branch so that
we can be sure the error tables are kept in sync (in the unlikely case
that a new error code needs to be assigned in the maint branch).
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | lib/ext2fs/ext2_err.et.in | 3 | ||||
| -rw-r--r-- | lib/ext2fs/imager.c | 3 |
2 files changed, 6 insertions, 0 deletions
diff --git a/lib/ext2fs/ext2_err.et.in b/lib/ext2fs/ext2_err.et.in index b2ba71ad2..0c76fee64 100644 --- a/lib/ext2fs/ext2_err.et.in +++ b/lib/ext2fs/ext2_err.et.in @@ -545,4 +545,7 @@ ec EXT2_ET_INODE_CORRUPTED, ec EXT2_ET_EA_INODE_CORRUPTED, "Inode containing extended attribute value is corrupted" +ec EXT2_ET_NO_GDESC, + "Group descriptors not loaded" + end diff --git a/lib/ext2fs/imager.c b/lib/ext2fs/imager.c index 7fd06f743..20bb99aea 100644 --- a/lib/ext2fs/imager.c +++ b/lib/ext2fs/imager.c @@ -201,6 +201,9 @@ errcode_t ext2fs_image_super_write(ext2_filsys fs, int fd, int j; #endif + if (fs->group_desc == NULL) + return EXT2_ET_NO_GDESC; + buf = malloc(fs->blocksize); if (!buf) return ENOMEM; |