Zero Byte File Identification

[FaStOnE]

Does anyone have any homegrown solutions for identifying a ZERO byte DOS file?

I'm trying to keep from FTP'ing ZERO byte files up to my ISeries for processing since CPYFRMPCD seems to puke on them.

[andy]

Re: Zero Byte File Identification

What's doing the FTP'ing ? Are you using a .cmd file or a programme or something ? (I'm after the language you want to do it in).

[Billw]

Re: Zero Byte File Identification

Do a IFS directory read and get the file size. Search code400 for IFS directory read program.
Good Luck

[andy]

Re: Zero Byte File Identification

Here's a bit of Windoze C code I threw together that will print out the file size of a given file and optionally delete it.

#include <windows.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>

void ShowHelp()
{
   printf("filesize.exe {filename} {/d}                                     \n");
   printf("             {/h>                                                \n");
   printf("                                                                 \n");
   printf("Displays the size of the file and optionally deletes empty files \n");
   printf("                                                                 \n");
   printf("  /h - Displays this message                                     \n");
   printf("  /d - Deletes the file if its size is zero                      \n");
}

int main( int argc, char *argv[])
{
   if(argc<2)
   {
      ShowHelp();
      return 0;
   }
   if(!stricmp(argv[1],"/h"))
   {
      ShowHelp();
   }

   {
      FILE *f = fopen(argv[1],"r");
      if(f==NULL)
      {
         printf("File not found\n");
      }
      else
      {
         fclose(f);
         {
            struct _stat s;

            if(0!=_stat(argv[1],&s))
            {
               printf("Failed to get file attributes\n");
               return 0;
            }
            printf("%i",s.st_size);
            if(argc==3)
            {
               if( !stricmp(argv[2],"/d") && s.st_size==0)
               {
                  DeleteFile(argv[1]);
                  printf(" - File deleted\n");
               }
            }
         }
      }

Example...

C:\Documents and Settings\Andy>dir test.txt
 Volume in drive C has no label.
 Volume Serial Number is 409B-65EE

 Directory of C:\Documents and Settings\Andy

02/06/2007  01:44                 0 test.txt
               1 File(s)              0 bytes
               0 Dir(s)  15,028,170,752 bytes free

C:\Documents and Settings\Andy>filesize test.txt /d
0 - File deleted

C:\Documents and Settings\Andy>

[jamief]

Re: Zero Byte File Identification

Thanks for sharing Andy

[bryce4president]

Re: Zero Byte File Identification

*I wipe away a happy tear at the site of C*

Yey for Andy!