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authordgp <dgp@users.sourceforge.net>2006-02-15 16:04:26 (GMT)
committerdgp <dgp@users.sourceforge.net>2006-02-15 16:04:26 (GMT)
commit8a69941cbf07e009343850ef3a370bcc7adf4f7e (patch)
tree996e867cdf99793046a663a9c41ebe5fc8ff061a /generic
parent2ee0284e217d46d0ed94cb877ea1fd72d5cd89ed (diff)
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* generic/tclIO.c: Made several routines tolerant of
* generic/tclIOUtil.c: interp == NULL arguments. [Bug 1380662]
Diffstat (limited to 'generic')
-rw-r--r--generic/tclIO.c66
-rw-r--r--generic/tclIOUtil.c6
2 files changed, 45 insertions, 27 deletions
diff --git a/generic/tclIO.c b/generic/tclIO.c
index e0cf01a..852af2b 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 1.61.2.17 2005/11/18 19:38:02 hobbs Exp $
+ * RCS: @(#) $Id: tclIO.c,v 1.61.2.18 2006/02/15 16:04:27 dgp Exp $
*/
#include "tclInt.h"
@@ -1310,8 +1310,10 @@ Tcl_StackChannel(interp, typePtr, instanceData, mask, prevChan)
}
if (statePtr == NULL) {
- Tcl_AppendResult(interp, "couldn't find state for channel \"",
- Tcl_GetChannelName(prevChan), "\"", (char *) NULL);
+ if (interp) {
+ Tcl_AppendResult(interp, "couldn't find state for channel \"",
+ Tcl_GetChannelName(prevChan), "\"", (char *) NULL);
+ }
return (Tcl_Channel) NULL;
}
@@ -1329,9 +1331,11 @@ Tcl_StackChannel(interp, typePtr, instanceData, mask, prevChan)
*/
if ((mask & (statePtr->flags & (TCL_READABLE | TCL_WRITABLE))) == 0) {
- Tcl_AppendResult(interp,
- "reading and writing both disallowed for channel \"",
- Tcl_GetChannelName(prevChan), "\"", (char *) NULL);
+ if (interp) {
+ Tcl_AppendResult(interp,
+ "reading and writing both disallowed for channel \"",
+ Tcl_GetChannelName(prevChan), "\"", (char *) NULL);
+ }
return (Tcl_Channel) NULL;
}
@@ -1350,8 +1354,10 @@ Tcl_StackChannel(interp, typePtr, instanceData, mask, prevChan)
if (Tcl_Flush((Tcl_Channel) prevChanPtr) != TCL_OK) {
statePtr->csPtr = csPtr;
- Tcl_AppendResult(interp, "could not flush channel \"",
- Tcl_GetChannelName(prevChan), "\"", (char *) NULL);
+ if (interp) {
+ Tcl_AppendResult(interp, "could not flush channel \"",
+ Tcl_GetChannelName(prevChan), "\"", (char *) NULL);
+ }
return (Tcl_Channel) NULL;
}
@@ -1477,9 +1483,11 @@ Tcl_UnstackChannel (interp, chan)
if (Tcl_Flush((Tcl_Channel) chanPtr) != TCL_OK) {
statePtr->csPtr = csPtr;
- Tcl_AppendResult(interp, "could not flush channel \"",
- Tcl_GetChannelName((Tcl_Channel) chanPtr), "\"",
- (char *) NULL);
+ if (interp) {
+ Tcl_AppendResult(interp, "could not flush channel \"",
+ Tcl_GetChannelName((Tcl_Channel) chanPtr), "\"",
+ (char *) NULL);
+ }
return TCL_ERROR;
}
@@ -2562,9 +2570,11 @@ Tcl_Close(interp, chan)
}
if (statePtr->flags & CHANNEL_INCLOSE) {
- Tcl_AppendResult(interp,
- "Illegal recursive call to close through close-handler of channel",
- (char *) NULL);
+ if (interp) {
+ Tcl_AppendResult(interp,
+ "Illegal recursive call to close through close-handler of channel",
+ (char *) NULL);
+ }
return TCL_ERROR;
}
statePtr->flags |= CHANNEL_INCLOSE;
@@ -7574,13 +7584,17 @@ TclCopyChannel(interp, inChan, outChan, toRead, cmdPtr)
outStatePtr = outPtr->state;
if (inStatePtr->csPtr) {
- Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "channel \"",
- Tcl_GetChannelName(inChan), "\" is busy", NULL);
+ if (interp) {
+ Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "channel \"",
+ Tcl_GetChannelName(inChan), "\" is busy", NULL);
+ }
return TCL_ERROR;
}
if (outStatePtr->csPtr) {
- Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "channel \"",
- Tcl_GetChannelName(outChan), "\" is busy", NULL);
+ if (interp) {
+ Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "channel \"",
+ Tcl_GetChannelName(outChan), "\" is busy", NULL);
+ }
return TCL_ERROR;
}
@@ -7882,7 +7896,7 @@ CopyData(csPtr, mask)
*/
total = csPtr->total;
- if (cmdPtr) {
+ if (cmdPtr && interp) {
/*
* Get a private copy of the command so we can mutate it
* by adding arguments. Note that StopCopy frees our saved
@@ -7906,12 +7920,14 @@ CopyData(csPtr, mask)
Tcl_Release((ClientData) interp);
} else {
StopCopy(csPtr);
- if (errObj) {
- Tcl_SetObjResult(interp, errObj);
- result = TCL_ERROR;
- } else {
- Tcl_ResetResult(interp);
- Tcl_SetIntObj(Tcl_GetObjResult(interp), total);
+ if (interp) {
+ if (errObj) {
+ Tcl_SetObjResult(interp, errObj);
+ result = TCL_ERROR;
+ } else {
+ Tcl_ResetResult(interp);
+ Tcl_SetIntObj(Tcl_GetObjResult(interp), total);
+ }
}
}
return result;
diff --git a/generic/tclIOUtil.c b/generic/tclIOUtil.c
index 5e0acbb..84c9161 100644
--- a/generic/tclIOUtil.c
+++ b/generic/tclIOUtil.c
@@ -17,7 +17,7 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclIOUtil.c,v 1.77.2.25 2006/01/12 18:03:48 vasiljevic Exp $
+ * RCS: @(#) $Id: tclIOUtil.c,v 1.77.2.26 2006/02/15 16:04:29 dgp Exp $
*/
#include "tclInt.h"
@@ -1864,7 +1864,9 @@ Tcl_PosixError(interp)
msg = Tcl_ErrnoMsg(errno);
id = Tcl_ErrnoId();
- Tcl_SetErrorCode(interp, "POSIX", id, msg, (char *) NULL);
+ if (interp) {
+ Tcl_SetErrorCode(interp, "POSIX", id, msg, (char *) NULL);
+ }
return msg;
}