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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/tclPipe.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/tclPipe.c')
-rw-r--r--generic/tclPipe.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/generic/tclPipe.c b/generic/tclPipe.c
index 561d390..90b1c1a 100644
--- a/generic/tclPipe.c
+++ b/generic/tclPipe.c
@@ -9,7 +9,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclPipe.c,v 1.19 2007/04/20 06:10:58 kennykb Exp $
+ * RCS: @(#) $Id: tclPipe.c,v 1.19.4.1 2009/07/24 16:51:28 andreas_kupries Exp $
*/
#include "tclInt.h"
@@ -102,9 +102,15 @@ FileForRedirect(
}
file = TclpMakeFile(chan, writing ? TCL_WRITABLE : TCL_READABLE);
if (file == NULL) {
- Tcl_AppendResult(interp, "channel \"", Tcl_GetChannelName(chan),
- "\" wasn't opened for ",
- ((writing) ? "writing" : "reading"), NULL);
+ Tcl_Obj* msg;
+ Tcl_GetChannelError(chan, &msg);
+ if (msg) {
+ Tcl_SetObjResult (interp, msg);
+ } else {
+ Tcl_AppendResult(interp, "channel \"", Tcl_GetChannelName(chan),
+ "\" wasn't opened for ",
+ ((writing) ? "writing" : "reading"), NULL);
+ }
return NULL;
}
*releasePtr = 1;