*** old/skt.c	2006-06-28 02:52:20.000000000 +0900
--- new/skt.c	2006-06-28 02:54:51.000000000 +0900
***************
*** 164,173 ****
      case 2:  strcpy(infilename,argv[1]);
               strcpy(outfilename,"");
               break;
!     default: while(strlen(infilename) == 0)
!                    { printf("Input file: "); scanf(infilename); }
               printf("Output file: ");
!              scanf(outfilename);
    }
    if (strlen(outfilename) == 0) 
      { strcpy (outfilename,infilename);   /* default output file name */
--- 164,177 ----
      case 2:  strcpy(infilename,argv[1]);
               strcpy(outfilename,"");
               break;
!     default: while(strlen(infilename) == 0) {
!                  printf("Input file: "); 
!                  fgets(infilename, sizeof infilename, stdin);
!                  infilename[strlen(infilename)-1] = '\0';
!              }  
               printf("Output file: ");
!              fgets(outfilename, sizeof outfilename, stdin);
!              outfilename[strlen(outfilename)-1] = '\0';
    }
    if (strlen(outfilename) == 0) 
      { strcpy (outfilename,infilename);   /* default output file name */