2.9BSD - /usr/src/lib/c/stdio/findiop.c

   1: /*	@(#)findiop.c	2.1	SCCS id keyword	*/
   2: #include <stdio.h>
   3: 
   4: FILE *
   5: _findiop()
   6: {
   7:     extern FILE *_lastbuf;
   8:     register FILE *iop;
   9: 
  10:     for(iop = _iob; iop->_flag & (_IOREAD|_IOWRT|_IORW);)
  11:         if (++iop >= _lastbuf)
  12:             return(NULL);
  13: 
  14:     return(iop);
  15: }

Defined functions