1*8327Smckusick /* @(#)setbuffer.c 4.1 (Berkeley) 10/05/82 */ 2*8327Smckusick #include <stdio.h> 3*8327Smckusick 4*8327Smckusick setbuffer(iop, buf, size) 5*8327Smckusick register struct _iobuf *iop; 6*8327Smckusick char *buf; 7*8327Smckusick int size; 8*8327Smckusick { 9*8327Smckusick if (iop->_base != NULL && iop->_flag&_IOMYBUF) 10*8327Smckusick free(iop->_base); 11*8327Smckusick iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF); 12*8327Smckusick if ((iop->_base = buf) == NULL) { 13*8327Smckusick iop->_flag |= _IONBF; 14*8327Smckusick iop->_bufsiz = NULL; 15*8327Smckusick } else { 16*8327Smckusick iop->_ptr = iop->_base; 17*8327Smckusick iop->_bufsiz = size; 18*8327Smckusick } 19*8327Smckusick iop->_cnt = 0; 20*8327Smckusick } 21