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-rw-r--r--generic/tclIO.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/generic/tclIO.c b/generic/tclIO.c
index 6de2cbe..b30385f 100644
--- a/generic/tclIO.c
+++ b/generic/tclIO.c
@@ -10,7 +10,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclIO.c,v 1.137.2.5 2008/04/15 18:32:01 andreas_kupries Exp $
+ * RCS: @(#) $Id: tclIO.c,v 1.137.2.6 2008/05/23 21:10:43 andreas_kupries Exp $
*/
#include "tclInt.h"
@@ -224,6 +224,8 @@ static Tcl_ObjType tclChannelType = {
#define BUSY_STATE(st,fl) \
((((st)->csPtrR) && ((fl) & TCL_READABLE)) || \
(((st)->csPtrW) && ((fl) & TCL_WRITABLE)))
+
+#define MAX_CHANNEL_BUFFER_SIZE (1024*1024)
/*
*---------------------------------------------------------------------------
@@ -6937,12 +6939,13 @@ Tcl_SetChannelBufferSize(
ChannelState *statePtr; /* State of real channel structure. */
/*
- * If the buffer size is smaller than 1 byte or larger than one MByte, do
- * not accept the requested size and leave the current buffer size.
+ * Clip the buffer size to force it into the [1,1M] range
*/
- if (sz < 1 || sz > 1024*1024) {
- return;
+ if (sz < 1) {
+ sz = 1;
+ } else if (sz > MAX_CHANNEL_BUFFER_SIZE) {
+ sz = MAX_CHANNEL_BUFFER_SIZE;
}
statePtr = ((Channel *) chan)->state;