- memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
- if ((unsigned)data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
- data->max_offset = mdata->offset + res->READ3res_u.resok.count;
+ if (res->READ3res_u.resok.count <= mdata->count) {
+ /* copy data into reassembly buffer if we have one */
+ if (data->buffer != NULL) {
+ memcpy(&data->buffer[mdata->offset - data->start_offset], res->READ3res_u.resok.data.data_val, res->READ3res_u.resok.count);
+ }
+ if (data->max_offset < mdata->offset + res->READ3res_u.resok.count) {
+ data->max_offset = mdata->offset + res->READ3res_u.resok.count;
+ }
+ } else {
+ rpc_set_error(nfs->rpc, "NFS: Read overflow. Server has sent more data than requested!");
+ data->error = 1;
+ }
+ }
+ /* check if we have received a short read */
+ if (res->READ3res_u.resok.count < mdata->count && !res->READ3res_u.resok.eof) {
+ if (res->READ3res_u.resok.count == 0) {
+ rpc_set_error(nfs->rpc, "NFS: Read failed. No bytes read and not at EOF!");
+ data->error = 1;
+ } else {
+ /* reissue reminder of this read request */
+ READ3args args;
+ mdata->offset += res->READ3res_u.resok.count;
+ mdata->count -= res->READ3res_u.resok.count;
+ nfs_fill_READ3args(&args, data->nfsfh, mdata->offset, mdata->count);
+ if (rpc_nfs3_read_async(nfs->rpc, nfs_pread_mcb, &args, mdata) == 0) {
+ data->num_calls++;
+ return;
+ } else {
+ rpc_set_error(nfs->rpc, "RPC error: Failed to send READ call for %s", data->path);
+ data->oom = 1;
+ }