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Annotation of 42BSD/lib/libc/stdio/setbuffer.c, revision 1.1.1.1

1.1       root        1: /* @(#)setbuffer.c     4.2 (Berkeley) 2/27/83 */
                      2: #include       <stdio.h>
                      3: 
                      4: setbuffer(iop, buf, size)
                      5:        register struct _iobuf *iop;
                      6:        char *buf;
                      7:        int size;
                      8: {
                      9:        if (iop->_base != NULL && iop->_flag&_IOMYBUF)
                     10:                free(iop->_base);
                     11:        iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF);
                     12:        if ((iop->_base = buf) == NULL) {
                     13:                iop->_flag |= _IONBF;
                     14:                iop->_bufsiz = NULL;
                     15:        } else {
                     16:                iop->_ptr = iop->_base;
                     17:                iop->_bufsiz = size;
                     18:        }
                     19:        iop->_cnt = 0;
                     20: }
                     21: 
                     22: /*
                     23:  * set line buffering for either stdout or stderr
                     24:  */
                     25: setlinebuf(iop)
                     26:        register struct _iobuf *iop;
                     27: {
                     28:        static char _sebuf[BUFSIZ];
                     29:        extern char _sobuf[];
                     30: 
                     31:        if (iop != stdout && iop != stderr)
                     32:                return;
                     33:        fflush(iop);
                     34:        setbuffer(iop, NULL, 0);
                     35:        setbuffer(iop, iop == stderr ? _sebuf : _sobuf, BUFSIZ);
                     36:        iop->_flag |= _IOLBF;
                     37: }

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