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authorandreas_kupries <akupries@shaw.ca>2009-07-24 16:51:28 (GMT)
committerandreas_kupries <akupries@shaw.ca>2009-07-24 16:51:28 (GMT)
commit410f05ea0612ecb96c5833d16c0a8216bcd7fb08 (patch)
tree46460d38d87914523bd6bb35a8746c8557614f71 /generic/tclIO.c
parent8bed03c8ab1a815791db5f01335cccb517cf8bce (diff)
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* generic/tclIO.c (Tcl_GetChannelHandle): [Bug 2826248]: Do not crash
* generic/tclPipe.c (FileForRedirect): for getHandleProc == NULL, this is allowed. Provide a nice error message in the bypass area. Updated caller to check the bypass for a mesage. Bug reported by Andy Sonnenburg <andy22286@users.sourceforge.net>. Backported from CVS head.
Diffstat (limited to 'generic/tclIO.c')
-rw-r--r--generic/tclIO.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/generic/tclIO.c b/generic/tclIO.c
index 3553286..649e31b 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 1.137.2.10 2008/12/11 17:27:39 andreas_kupries Exp $
+ * RCS: @(#) $Id: tclIO.c,v 1.137.2.11 2009/07/24 16:51:28 andreas_kupries Exp $
*/
#include "tclInt.h"
@@ -2006,6 +2006,14 @@ Tcl_GetChannelHandle(
int result;
chanPtr = ((Channel *) chan)->state->bottomChanPtr;
+ if (!chanPtr->typePtr->getHandleProc) {
+ Tcl_Obj* err;
+ TclNewLiteralStringObj(err, "channel \"");
+ Tcl_AppendToObj(err, Tcl_GetChannelName(chan), -1);
+ Tcl_AppendToObj(err, "\" does not support OS handles", -1);
+ Tcl_SetChannelError (chan,err);
+ return TCL_ERROR;
+ }
result = (chanPtr->typePtr->getHandleProc)(chanPtr->instanceData,
direction, &handle);
if (handlePtr) {