binary to ascii

[Siva Chelliah]

I wrote a program to translate binary files to ascii.  I tried under
Microsoft C 5.1 and Turbo C 2.0. But it works with
some files and stops in the middle of some files.  When I ran it against 
itself after compiling with Microsoft C, it stopped when it tried to read 1A
Am I missing something?
Please help.  
Now I know there is a program in UNIX to do this (uuencode)
If anybody wants the other program (ascii to binary ) let me know. Of course, 
we have to fix this first. 
NOTE : both programs works fine under UNIX.

#include "stdio.h"
#include <sys/types.h>
#include "unistd.h"
#include "fcntl.h"
main (argc,argv)
 int argc;
 char *argv[];
{
 unsigned int i;
 int hl;
 long flen;
 char c;
 FILE *fp;
 if((hl=open(argv[1],O_RDONLY))==-1){
     printf("error : file not found ");
     exit(1);
 }
 while (read(hl,&c,1)==1){ 
    i=(int ) c;
    i=i &  0x00FF;   /* this is necessary because when you read, sign is 
                        extended in c   */
    printf("%02X",i); 
  }
}