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-rw-r--r--generic/tclPipe.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/generic/tclPipe.c b/generic/tclPipe.c
index fc0e6c0..9750131 100644
--- a/generic/tclPipe.c
+++ b/generic/tclPipe.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: tclPipe.c,v 1.7.2.2 2005/07/28 15:27:58 dkf Exp $
+ * RCS: @(#) $Id: tclPipe.c,v 1.7.2.3 2005/10/05 22:09:11 andreas_kupries Exp $
*/
#include "tclInt.h"
@@ -508,6 +508,7 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
* closed when cleaning up. */
int errorRelease = 0;
CONST char *p;
+ CONST char *nextArg;
int skip, lastBar, lastArg, i, j, atOK, flags, errorToOutput = 0;
Tcl_DString execBuffer;
TclFile pipeIn;
@@ -581,7 +582,7 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
inputLiteral = p + 1;
skip = 1;
if (*inputLiteral == '\0') {
- inputLiteral = argv[i + 1];
+ inputLiteral = ((i + 1) == argc) ? NULL : argv[i + 1];
if (inputLiteral == NULL) {
Tcl_AppendResult(interp, "can't specify \"", argv[i],
"\" as last word in command", (char *) NULL);
@@ -590,9 +591,10 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
skip = 2;
}
} else {
+ nextArg = ((i + 1) == argc) ? NULL : argv[i + 1];
inputLiteral = NULL;
inputFile = FileForRedirect(interp, p, 1, argv[i],
- argv[i + 1], O_RDONLY, &skip, &inputClose, &inputRelease);
+ nextArg, O_RDONLY, &skip, &inputClose, &inputRelease);
if (inputFile == NULL) {
goto error;
}
@@ -643,8 +645,9 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
TclpReleaseFile(outputFile);
}
}
+ nextArg = ((i + 1) == argc) ? NULL : argv[i + 1];
outputFile = FileForRedirect(interp, p, atOK, argv[i],
- argv[i + 1], flags, &skip, &outputClose, &outputRelease);
+ nextArg, flags, &skip, &outputClose, &outputRelease);
if (outputFile == NULL) {
goto error;
}
@@ -696,8 +699,9 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
errorToOutput = 2;
skip = 1;
} else {
+ nextArg = ((i + 1) == argc) ? NULL : argv[i + 1];
errorFile = FileForRedirect(interp, p, atOK, argv[i],
- argv[i + 1], flags, &skip, &errorClose, &errorRelease);
+ nextArg, flags, &skip, &errorClose, &errorRelease);
if (errorFile == NULL) {
goto error;
}
@@ -864,7 +868,6 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
}
}
}
- argv[lastArg] = NULL;
/*
* If this is the last segment, use the specified outputFile.
@@ -872,9 +875,10 @@ TclCreatePipeline(interp, argc, argv, pidArrayPtr, inPipePtr,
* curInFile for the next segment of the pipe.
*/
- if (lastArg == argc) {
+ if (lastArg == argc) {
curOutFile = outputFile;
} else {
+ argv[lastArg] = NULL;
if (TclpCreatePipe(&pipeIn, &curOutFile) == 0) {
Tcl_AppendResult(interp, "couldn't create pipe: ",
Tcl_PosixError(interp), (char *) NULL);