4.3BSD - /usr/ingres/source/monitor/getch.c

   1: # include   "monitor.h"
   2: # include   <ingres.h>
   3: # include   <aux.h>
   4: # include   <sccs.h>
   5: 
   6: SCCSID(@(#)getch.c	8.1	12/31/84)
   7: 
   8: 
   9: 
  10: /*
  11: **  GET CHARACTER
  12: **
  13: **	This routine is just a getchar, except it allows a pseudo-
  14: **	EOF marker.
  15: */
  16: 
  17: char
  18: getch()
  19: {
  20:     register char   c;
  21: 
  22:     if (GiveEof)
  23:         c = '\0';
  24:     else
  25:         c = getc(Input);
  26:     if (c < 0)
  27:         c = '\0';
  28: 
  29:     /* deliver EOF if newline in Oneline mode */
  30:     if (c == '\n' && Oneline)
  31:     {
  32:         ungetc(c, Input);
  33:         c = '\0';
  34:     }
  35: 
  36:     GiveEof = FALSE;
  37:     return (c);
  38: }

Defined functions