1*11307Smckusick /* @(#)setbuffer.c 4.2 (Berkeley) 02/27/83 */ 28327Smckusick #include <stdio.h> 38327Smckusick 48327Smckusick setbuffer(iop, buf, size) 58327Smckusick register struct _iobuf *iop; 68327Smckusick char *buf; 78327Smckusick int size; 88327Smckusick { 98327Smckusick if (iop->_base != NULL && iop->_flag&_IOMYBUF) 108327Smckusick free(iop->_base); 118327Smckusick iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF); 128327Smckusick if ((iop->_base = buf) == NULL) { 138327Smckusick iop->_flag |= _IONBF; 148327Smckusick iop->_bufsiz = NULL; 158327Smckusick } else { 168327Smckusick iop->_ptr = iop->_base; 178327Smckusick iop->_bufsiz = size; 188327Smckusick } 198327Smckusick iop->_cnt = 0; 208327Smckusick } 21*11307Smckusick 22*11307Smckusick /* 23*11307Smckusick * set line buffering for either stdout or stderr 24*11307Smckusick */ 25*11307Smckusick setlinebuf(iop) 26*11307Smckusick register struct _iobuf *iop; 27*11307Smckusick { 28*11307Smckusick static char _sebuf[BUFSIZ]; 29*11307Smckusick extern char _sobuf[]; 30*11307Smckusick 31*11307Smckusick if (iop != stdout && iop != stderr) 32*11307Smckusick return; 33*11307Smckusick fflush(iop); 34*11307Smckusick setbuffer(iop, NULL, 0); 35*11307Smckusick setbuffer(iop, iop == stderr ? _sebuf : _sobuf, BUFSIZ); 36*11307Smckusick iop->_flag |= _IOLBF; 37*11307Smckusick } 38