s->nb_snapshots = 0;
}
-int qcow2_read_snapshots(BlockDriverState *bs)
+int qcow2_read_snapshots(BlockDriverState *bs, Error **errp)
{
BDRVQcow2State *s = bs->opaque;
QCowSnapshotHeader h;
offset = ROUND_UP(offset, 8);
ret = bdrv_pread(bs->file, offset, &h, sizeof(h));
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
}
ret = bdrv_pread(bs->file, offset, &extra,
MIN(sizeof(extra), extra_data_size));
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
}
offset += extra_data_size;
sn->id_str = g_malloc(id_str_size + 1);
ret = bdrv_pread(bs->file, offset, sn->id_str, id_str_size);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
}
offset += id_str_size;
sn->name = g_malloc(name_size + 1);
ret = bdrv_pread(bs->file, offset, sn->name, name_size);
if (ret < 0) {
+ error_setg_errno(errp, -ret, "Failed to read snapshot table");
goto fail;
}
offset += name_size;
if (offset - s->snapshots_offset > QCOW_MAX_SNAPSHOTS_SIZE) {
ret = -EFBIG;
+ error_setg(errp, "Snapshot table is too big");
goto fail;
}
}
s->snapshots_offset = header.snapshots_offset;
s->nb_snapshots = header.nb_snapshots;
- ret = qcow2_read_snapshots(bs);
+ ret = qcow2_read_snapshots(bs, errp);
if (ret < 0) {
- error_setg_errno(errp, -ret, "Could not read snapshots");
goto fail;
}
Error **errp);
void qcow2_free_snapshots(BlockDriverState *bs);
-int qcow2_read_snapshots(BlockDriverState *bs);
+int qcow2_read_snapshots(BlockDriverState *bs, Error **errp);
/* qcow2-cache.c functions */
Qcow2Cache *qcow2_cache_create(BlockDriverState *bs, int num_tables,