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

   1: #include    <stdio.h>
   2: 
   3: setbuf(iop, buf)
   4: register struct _iobuf *iop;
   5: char *buf;
   6: {
   7:     if (iop->_base != NULL && iop->_flag&_IOMYBUF)
   8:         free(iop->_base);
   9: #ifndef UCB_LINEBUF
  10:     iop->_flag &= ~(_IOMYBUF|_IONBF);
  11: #else UCB_LINEBUF
  12:     iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF);
  13: #endif UCB_LINEBUF
  14:     if ((iop->_base = buf) == NULL)
  15:         iop->_flag |= _IONBF;
  16:     else
  17:         iop->_ptr = iop->_base;
  18:     iop->_cnt = 0;
  19: }

Defined functions