struct btrfs_tlv_header *cmd_attrs[BTRFS_SEND_A_MAX + 1];
u32 version;
+ /*
+ * end of last successful read, equivalent to start of current
+ * malformated part of block
+ */
+ size_t stream_pos;
+
struct btrfs_send_ops *ops;
void *user;
};
ret = 0;
out_eof:
- if (pos < len) {
+ if (0 < pos && pos < len) {
error("short read from stream: expected %zu read %zu", len, pos);
ret = -EIO;
+ } else {
+ sctx->stream_pos += pos;
}
out:
sctx.fd = fd;
sctx.ops = ops;
sctx.user = user;
+ sctx.stream_pos = 0;
ret = read_buf(&sctx, (char*)&hdr, sizeof(hdr));
if (ret < 0)
goto out;
if (ret) {
- ret = 1;
+ ret = -ENODATA;
goto out;
}