40     FILE *mem = fopen(fb, "rb");  in main()  local
41     if (mem==NULL) {  in main()
51     fseek(mem, start, SEEK_SET);  in main()
53         n = fwrite(&magic, 1, sizeof(magic), mem);  in main()
56     fread(&v, 1, sizeof(v), mem);  in main()
57     fclose(mem); mem=NULL;  in main()
63         mem = fopen(fb, "rb");  in main()
64         fseek(mem, nstart, SEEK_SET);  in main()
66             n = fread(&vv, 1, sizeof(vv), mem);  in main()
69         n = fread(&vv, 1, sizeof(vv), mem);  in main()
72     if (mem) fclose(mem);  in main()