date and time created 82/10/05 22:47:01 by mckusick

[unix-history] / usr / src / lib / libc / stdio / setbuffer.c

/* @(#)setbuffer.c      4.1 (Berkeley) %G% */
#include        <stdio.h>

setbuffer(iop, buf, size)
       register struct _iobuf *iop;
       char *buf;
       int size;
{
       if (iop->_base != NULL && iop->_flag&_IOMYBUF)
               free(iop->_base);
       iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF);
       if ((iop->_base = buf) == NULL) {
               iop->_flag |= _IONBF;
               iop->_bufsiz = NULL;
       } else {
               iop->_ptr = iop->_base;
               iop->_bufsiz = size;
       }
       iop->_cnt = 0;
}