| 1 | /* @(#)setbuffer.c 4.4 (Berkeley) %G% */ |
| 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 | char *buf; |
| 29 | extern char *malloc(); |
| 30 | |
| 31 | fflush(iop); |
| 32 | setbuffer(iop, NULL, 0); |
| 33 | buf = malloc(BUFSIZ); |
| 34 | if (buf != NULL) { |
| 35 | setbuffer(iop, buf, BUFSIZ); |
| 36 | iop->_flag |= _IOLBF|_IOMYBUF; |
| 37 | } |
| 38 | } |