4c8
/* NetDialer, Simple dialer for use with PE1CHL NET */

#include <dos.h>
#include <bios.h>
#include <conio.h>
#include <stdio.h>

#define DATA_READY 0x100
#define TRUE       1
#define FALSE      0

int com;

init()
{
FILE* cnf_file;
char comstr[80];

     if(! (cnf_file = fopen("ND.CFG","rt")))
     {
          printf("Error: can't find ND.CFG\n");
          exit(1);
     }
     fgets(comstr,80,cnf_file);

     if(! (com = atoi(comstr))) 
     {
          printf("Error: invalid COM port\n");
          exit(1);
     }
     printf("<< NetDialer >> Simple dialer for PE1CHL NET\n");
     printf("Using COM%d...\n\n",com);

}


int main(void)
{
int in, out, status, DONE = FALSE;

     init();

     while (!DONE)
     {
          status = bioscom(3, 0, com-1);
          if (status & DATA_READY)
          {
               putch(out = bioscom(2, 0, com-1) & 0xFF);
               if(out == '\x0A')
                    if(wherey() == 25) clreol();
          }
          if (bioskey(1))
          {
               if ((in = bioskey(0) & 0xFF) == '\x1B')
                    DONE = TRUE;
               bioscom(1, in, com-1);
          }
     }
     exit(0);
}
.

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