83     FILE *file;  in main()  local
187         file = fopen(write_filename, "r");  in main()
188         if (!file) {  in main()
193         if (fstat(fileno(file), &buf) < 0) {  in main()
208         if (fread(&buffer[sizeof(uint32_t)], 1, length, file) < (size_t)length) {  in main()
241         fclose(file);  in main()
245         file = fopen(read_filename, "w");  in main()
246         if (!file) {  in main()
257                 if (fwrite(buffer, 1, length, file) < (size_t)length)  in main()
282                         if (fwrite(buffer, 1, tot_len(length), file) < tot_len(length))  in main()
301         fclose(file);  in main()