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- /*
- * setbuffer.c --
- *
- * Source code for the "setbuffer" library procedure.
- *
- * Copyright 1988 Regents of the University of California
- * Permission to use, copy, modify, and distribute this
- * software and its documentation for any purpose and without
- * fee is hereby granted, provided that the above copyright
- * notice appear in all copies. The University of California
- * makes no representations about the suitability of this
- * software for any purpose. It is provided "as is" without
- * express or implied warranty.
- */
-
- #ifndef lint
- static char rcsid[] = "$Header: setbuffer.c,v 1.2 88/07/28 17:18:45 ouster Exp $ SPRITE (Berkeley)";
- #endif not lint
-
- #include "stdio.h"
-
- /*
- *----------------------------------------------------------------------
- *
- * setbuffer --
- *
- * Reset the buffering strategy to use for stream.
- *
- * Results:
- * None.
- *
- * Side effects:
- * If buf is NULL, stream will be unbuffered from now on. Otherwise,
- * buf will be used as the buffer for stream.
- *
- *----------------------------------------------------------------------
- */
-
- void
- setbuffer(stream, buf, size)
- FILE *stream; /* Stream to be re-buffered. */
- char *buf; /* New buffer to use for stream. NULL means
- * make stream unbuffered. Otherwise, this
- * space must persist until the stream is
- * closed or rebuffered. */
- int size; /* Number of bytes of storage space at
- * buf. */
- {
- if (buf == 0) {
- (void) setvbuf(stream, (char *) 0, _IONBF, 1);
- } else {
- (void) setvbuf(stream, buf, _IOFBF, size);
- }
- }
-