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authordkf <donal.k.fellows@manchester.ac.uk>2005-11-13 22:32:58 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2005-11-13 22:32:58 (GMT)
commit4fe67b59a8c7eb7b682da1552f3c6d73c091902f (patch)
treea9c7fbfdf6d803219c5a37bf87c709c87221c733 /unix/tkUnixSelect.c
parent1f8be96fa5cd6f0e78f5b02c22de850758eec80b (diff)
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Fix [Bug 1353414] by doing the list generation using standard Tcl utilities.
Also simplifies the code quite a bit (at the expense of an OUT parameter instead of a return value).
Diffstat (limited to 'unix/tkUnixSelect.c')
-rw-r--r--unix/tkUnixSelect.c85
1 files changed, 31 insertions, 54 deletions
diff --git a/unix/tkUnixSelect.c b/unix/tkUnixSelect.c
index 4c94056..f5decdb 100644
--- a/unix/tkUnixSelect.c
+++ b/unix/tkUnixSelect.c
@@ -8,7 +8,7 @@
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkUnixSelect.c,v 1.14 2005/10/21 01:51:45 dkf Exp $
+ * RCS: @(#) $Id: tkUnixSelect.c,v 1.15 2005/11/13 22:32:58 dkf Exp $
*/
#include "tkInt.h"
@@ -93,8 +93,8 @@ static TkSelRetrievalInfo *pendingRetrievals = NULL;
static void ConvertSelection(TkWindow *winPtr,
XSelectionRequestEvent *eventPtr);
static void IncrTimeoutProc(ClientData clientData);
-static char * SelCvtFromX(long *propPtr, int numValues, Atom type,
- Tk_Window tkwin);
+static void SelCvtFromX(long *propPtr, int numValues, Atom type,
+ Tk_Window tkwin, Tcl_DString *dsPtr);
static long * SelCvtToX(char *string, Atom type, Tk_Window tkwin,
int *numLongsPtr);
static int SelectionSize(TkSelHandler *selPtr);
@@ -666,7 +666,7 @@ TkSelEventProc(
Tk_DeleteEventHandler(tkwin, PropertyChangeMask, SelRcvIncrProc,
(ClientData) retrPtr);
} else {
- char *string;
+ Tcl_DString ds;
if (format != 32) {
char buf[64 + TCL_INTEGER_SPACE];
@@ -678,14 +678,15 @@ TkSelEventProc(
retrPtr->result = TCL_ERROR;
return;
}
- string = SelCvtFromX((long *) propInfo, (int) numItems, type,
- (Tk_Window) winPtr);
+ Tcl_DStringInit(&ds);
+ SelCvtFromX((long *) propInfo, (int) numItems, type,
+ (Tk_Window) winPtr, &ds);
interp = retrPtr->interp;
Tcl_Preserve((ClientData) interp);
retrPtr->result = (*retrPtr->proc)(retrPtr->clientData,
- interp, string);
+ interp, Tcl_DStringValue(&ds));
Tcl_Release((ClientData) interp);
- ckfree(string);
+ Tcl_DStringFree(&ds);
}
XFree(propInfo);
return;
@@ -1241,7 +1242,7 @@ SelRcvIncrProc(
} else if (numItems == 0) {
retrPtr->result = TCL_OK;
} else {
- char *string;
+ Tcl_DString ds;
if (format != 32) {
char buf[64 + TCL_INTEGER_SPACE];
@@ -1253,16 +1254,18 @@ SelRcvIncrProc(
retrPtr->result = TCL_ERROR;
goto done;
}
- string = SelCvtFromX((long *) propInfo, (int) numItems, type,
- (Tk_Window) retrPtr->winPtr);
+ Tcl_DStringInit(&ds);
+ SelCvtFromX((long *) propInfo, (int) numItems, type,
+ (Tk_Window) retrPtr->winPtr, &ds);
interp = retrPtr->interp;
Tcl_Preserve((ClientData) interp);
- result = (*retrPtr->proc)(retrPtr->clientData, interp, string);
+ result = (*retrPtr->proc)(retrPtr->clientData, interp,
+ Tcl_DStringValue(&ds));
Tcl_Release((ClientData) interp);
+ Tcl_DStringFree(&ds);
if (result != TCL_OK) {
retrPtr->result = result;
}
- ckfree(string);
}
done:
@@ -1457,8 +1460,8 @@ SelCvtToX(
* of SelCvtToX.
*
* Results:
- * The return value is the string equivalent of "property". It is
- * malloc-ed and should be freed by the caller when no longer needed.
+ * The return value (stored in a Tcl_DString) is the string equivalent of
+ * "property". It is up to the caller to initialize and free the DString.
*
* Side effects:
* None.
@@ -1466,62 +1469,36 @@ SelCvtToX(
*----------------------------------------------------------------------
*/
-static char *
+static void
SelCvtFromX(
register long *propPtr, /* Property value from X. */
int numValues, /* Number of 32-bit values in property. */
Atom type, /* Type of property Should not be XA_STRING
* (if so, don't bother calling this function
* at all). */
- Tk_Window tkwin) /* Window to use for atom conversion. */
+ Tk_Window tkwin, /* Window to use for atom conversion. */
+ Tcl_DString *dsPtr) /* Where to store the converted string. */
{
- char *result;
- int resultSpace, curSize, fieldSize;
- CONST char *atomName;
-
/*
* Convert each long in the property to a string value, which is either
- * the name of an atom (if type is XA_ATOM) or a hexadecimal string. Make
- * an initial guess about the size of the result, but be prepared to
- * enlarge the result if necessary.
+ * the name of an atom (if type is XA_ATOM) or a hexadecimal string. We
+ * build the list in a Tcl_DString because this is easier than trying to
+ * get the quoting correct ourselves; this is tricky because atoms can
+ * contain spaces in their names (encountered when the atoms are really
+ * MIME types). [Bug 1353414]
*/
- resultSpace = 12*numValues+1;
- curSize = 0;
- atomName = ""; /* Not needed, but eliminates compiler warning. */
- result = (char *) ckalloc((unsigned) resultSpace);
- *result = '\0';
for ( ; numValues > 0; propPtr++, numValues--) {
if (type == XA_ATOM) {
- atomName = Tk_GetAtomName(tkwin, (Atom) *propPtr);
- fieldSize = strlen(atomName) + 1;
+ Tcl_DStringAppendElement(dsPtr,
+ Tk_GetAtomName(tkwin, (Atom) *propPtr));
} else {
- fieldSize = 12;
- }
- if (curSize+fieldSize >= resultSpace) {
- char *newResult;
+ char buf[12];
- resultSpace *= 2;
- if (curSize+fieldSize >= resultSpace) {
- resultSpace = curSize + fieldSize + 1;
- }
- newResult = (char *) ckalloc((unsigned) resultSpace);
- strncpy(newResult, result, (unsigned) curSize);
- ckfree(result);
- result = newResult;
- }
- if (curSize != 0) {
- result[curSize] = ' ';
- curSize++;
- }
- if (type == XA_ATOM) {
- strcpy(result+curSize, atomName);
- } else {
- sprintf(result+curSize, "0x%x", (unsigned int) *propPtr);
+ sprintf(buf, "0x%x", (unsigned int) *propPtr);
+ Tcl_DStringAppendElement(dsPtr, buf);
}
- curSize += strlen(result+curSize);
}
- return result;
}
/*