projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 586c39b1 DF |
1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. | |
| 3 | * All rights reserved. The Berkeley software License Agreement | |
| 4 | * specifies the terms and conditions for redistribution. | |
| 5 | */ | |
| 6 | ||
| 7 | #ifndef lint | |
| 8 | static char sccsid[] = "@(#)setbuffer.c 5.1 (Berkeley) %G%"; | |
| 9 | #endif not lint | |
| 10 | ||
| 30b0fd94 KM |
11 | #include <stdio.h> |
| 12 | ||
| 13 | setbuffer(iop, buf, size) | |
| 41e01b3e | 14 | register FILE *iop; |
| 30b0fd94 KM |
15 | char *buf; |
| 16 | int size; | |
| 17 | { | |
| 18 | if (iop->_base != NULL && iop->_flag&_IOMYBUF) | |
| 19 | free(iop->_base); | |
| 20 | iop->_flag &= ~(_IOMYBUF|_IONBF|_IOLBF); | |
| 21 | if ((iop->_base = buf) == NULL) { | |
| 22 | iop->_flag |= _IONBF; | |
| 23 | iop->_bufsiz = NULL; | |
| 24 | } else { | |
| 25 | iop->_ptr = iop->_base; | |
| 26 | iop->_bufsiz = size; | |
| 27 | } | |
| 28 | iop->_cnt = 0; | |
| 29 | } | |
| d5c54585 KM |
30 | |
| 31 | /* | |
| 32 | * set line buffering for either stdout or stderr | |
| 33 | */ | |
| 34 | setlinebuf(iop) | |
| 41e01b3e | 35 | register FILE *iop; |
| d5c54585 | 36 | { |
| 8f58e367 | 37 | char *buf; |
| 63b1c981 | 38 | extern char *malloc(); |
| d5c54585 | 39 | |
| d5c54585 | 40 | fflush(iop); |
| 8f58e367 MK |
41 | setbuffer(iop, NULL, 0); |
| 42 | buf = malloc(BUFSIZ); | |
| 43 | if (buf != NULL) { | |
| 44 | setbuffer(iop, buf, BUFSIZ); | |
| 45 | iop->_flag |= _IOLBF|_IOMYBUF; | |
| 46 | } | |
| d5c54585 | 47 | } |