4.3BSD - /usr/src/usr.lib/libpc/UNSYNC.c

   1: /* Copyright (c) 1979 Regents of the University of California */
   2: 
   3: static char sccsid[] = "@(#)UNSYNC.c 1.4 10/28/83";
   4: 
   5: #include "h00vars.h"
   6: 
   7: /*
   8:  * push back last char read to prepare for formatted read
   9:  */
  10: UNSYNC(curfile)
  11: 
  12:     register struct iorec   *curfile;
  13: {
  14:     if (curfile->funit & FWRITE) {
  15:         ERROR("%s: Attempt to read, but open for writing\n",
  16:             curfile->pfname);
  17:         return;
  18:     }
  19:     if (curfile->funit & EOFF) {
  20:         ERROR("%s: Tried to read past end of file\n", curfile->pfname);
  21:         return;
  22:     }
  23:     if ((curfile->funit & SYNC) == 0) {
  24:         ungetc(*curfile->fileptr, curfile->fbuf);
  25:     }
  26:     curfile->funit &= ~EOLN;
  27:     curfile->funit |= SYNC;
  28: }

Defined functions

Defined variables