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-rw-r--r--unix/tclUnixFCmd.c82
1 files changed, 49 insertions, 33 deletions
diff --git a/unix/tclUnixFCmd.c b/unix/tclUnixFCmd.c
index f0a69b7..f0f852e 100644
--- a/unix/tclUnixFCmd.c
+++ b/unix/tclUnixFCmd.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: tclUnixFCmd.c,v 1.39 2004/10/06 16:08:57 dgp Exp $
+ * RCS: @(#) $Id: tclUnixFCmd.c,v 1.40 2004/11/11 01:14:41 das Exp $
*
* Portions of this code were derived from NetBSD source code which has
* the following copyright notice:
@@ -190,7 +190,7 @@ static int TraversalDelete _ANSI_ARGS_((Tcl_DString *srcPtr,
static int TraverseUnixTree _ANSI_ARGS_((
TraversalProc *traversalProc,
Tcl_DString *sourcePtr, Tcl_DString *destPtr,
- Tcl_DString *errorPtr));
+ Tcl_DString *errorPtr, int doRewind));
#ifdef PURIFY
/*
@@ -691,7 +691,7 @@ TclpObjCopyDirectory(srcPathPtr, destPathPtr, errorPtr)
Tcl_DecrRefCount(transPtr);
}
- ret = TraverseUnixTree(TraversalCopy, &srcString, &dstString, &ds);
+ ret = TraverseUnixTree(TraversalCopy, &srcString, &dstString, &ds, 0);
Tcl_DStringFree(&srcString);
Tcl_DStringFree(&dstString);
@@ -810,7 +810,7 @@ DoRemoveDirectory(pathPtr, recursive, errorPtr)
*/
if (result == TCL_OK) {
- result = TraverseUnixTree(TraversalDelete, pathPtr, NULL, errorPtr);
+ result = TraverseUnixTree(TraversalDelete, pathPtr, NULL, errorPtr, 1);
}
if ((result != TCL_OK) && (recursive != 0)) {
@@ -843,7 +843,7 @@ DoRemoveDirectory(pathPtr, recursive, errorPtr)
*/
static int
-TraverseUnixTree(traverseProc, sourcePtr, targetPtr, errorPtr)
+TraverseUnixTree(traverseProc, sourcePtr, targetPtr, errorPtr, doRewind)
TraversalProc *traverseProc;/* Function to call for every file and
* directory in source hierarchy. */
Tcl_DString *sourcePtr; /* Pathname of source directory to be
@@ -853,11 +853,18 @@ TraverseUnixTree(traverseProc, sourcePtr, targetPtr, errorPtr)
Tcl_DString *errorPtr; /* If non-NULL, uninitialized or free
* DString filled with UTF-8 name of file
* causing error. */
+ int doRewind; /* Flag indicating that to ensure complete
+ * traversal of source hierarchy, the readdir
+ * loop should be rewound whenever
+ * traverseProc has returned TCL_OK; this is
+ * required when traverseProc modifies the
+ * source hierarchy, e.g. by deleting files. */
{
Tcl_StatBuf statBuf;
CONST char *source, *errfile;
int result, sourceLen;
int targetLen;
+ int needRewind;
Tcl_DirEntry *dirEntPtr;
DIR *dirPtr;
@@ -902,36 +909,45 @@ TraverseUnixTree(traverseProc, sourcePtr, targetPtr, errorPtr)
targetLen = Tcl_DStringLength(targetPtr);
}
- while ((dirEntPtr = TclOSreaddir(dirPtr)) != NULL) { /* INTL: Native. */
- if ((dirEntPtr->d_name[0] == '.')
- && ((dirEntPtr->d_name[1] == '\0')
- || (strcmp(dirEntPtr->d_name, "..") == 0))) {
- continue;
- }
-
- /*
- * Append name after slash, and recurse on the file.
- */
-
- Tcl_DStringAppend(sourcePtr, dirEntPtr->d_name, -1);
- if (targetPtr != NULL) {
- Tcl_DStringAppend(targetPtr, dirEntPtr->d_name, -1);
- }
- result = TraverseUnixTree(traverseProc, sourcePtr, targetPtr,
- errorPtr);
- if (result != TCL_OK) {
- break;
+ do {
+ needRewind = 0;
+ while ((dirEntPtr = TclOSreaddir(dirPtr)) != NULL) { /* INTL: Native. */
+ if ((dirEntPtr->d_name[0] == '.')
+ && ((dirEntPtr->d_name[1] == '\0')
+ || (strcmp(dirEntPtr->d_name, "..") == 0))) {
+ continue;
+ }
+
+ /*
+ * Append name after slash, and recurse on the file.
+ */
+
+ Tcl_DStringAppend(sourcePtr, dirEntPtr->d_name, -1);
+ if (targetPtr != NULL) {
+ Tcl_DStringAppend(targetPtr, dirEntPtr->d_name, -1);
+ }
+ result = TraverseUnixTree(traverseProc, sourcePtr, targetPtr,
+ errorPtr, doRewind);
+ if (result != TCL_OK) {
+ needRewind = 0;
+ break;
+ } else {
+ needRewind = doRewind;
+ }
+
+ /*
+ * Remove name after slash.
+ */
+
+ Tcl_DStringSetLength(sourcePtr, sourceLen);
+ if (targetPtr != NULL) {
+ Tcl_DStringSetLength(targetPtr, targetLen);
+ }
}
-
- /*
- * Remove name after slash.
- */
-
- Tcl_DStringSetLength(sourcePtr, sourceLen);
- if (targetPtr != NULL) {
- Tcl_DStringSetLength(targetPtr, targetLen);
+ if (needRewind) {
+ rewinddir(dirPtr);
}
- }
+ } while (needRewind);
closedir(dirPtr);
/*