works with spinwriter on terminal port (with sheetfeeder)

[unix-history] / usr / src / old / vfilters / necf / necf.c

/*      necf.c  1.2     81/05/28        */
#include <stdio.h>
#include <sgtty.h>
#include <signal.h>

#define PAGESIZE        66

struct sgttyb tty;

main()
{
       extern char _sobuf[BUFSIZ];
       extern char *rindex();
       char line[256];
       register char c, *cp;
       register lnumber;

       signal(SIGINT, SIG_IGN);
       signal(SIGQUIT, SIG_IGN);
       signal(SIGHUP, SIG_IGN);

       tty.sg_ispeed = tty.sg_ospeed = B9600;
       tty.sg_erase = tty.sg_kill = -1;
       tty.sg_flags = (ANYP|XTABS|LDECCTQ);
       if (ioctl(1, TIOCSETP, (char *)&tty) < 0)
               exit (2);
       setbuf(stdout, _sobuf);
       printf("\033=\033\033\033O\f");
       lnumber = 0;
       while (fgets(line, sizeof(line), stdin) != NULL) {
               if (lnumber == PAGESIZE-1) {
                       putchar('\f');
                       lnumber = 0;
               }
               if (lnumber >= 2) {
                       if ((cp = rindex(line, '\n')) != NULL)
                               *cp = '\r';
                       printf("%s", line);
               }
               lnumber++;
       }
       fflush (stdout);
}