ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
if (ret != 0) {
printf("Failed to open(%s) %s\n", filename, nfs_get_error(nfs));
ret = nfs_open(nfs, filename, O_RDONLY, &nfsfh);
if (ret != 0) {
printf("Failed to open(%s) %s\n", filename, nfs_get_error(nfs));