Merge branch 'uli42-pr/libX11_1.6.6' into 3.6.x

Attributes GH PR #722: https://github.com/ArcticaProject/nx-libs/pull/722

5 files changed, 64 insertions, 40 deletions

diff --git a/nx-X11/lib/modules/im/ximcp/imCallbk.c b/nx-X11/lib/modules/im/ximcp/imCallbk.c
index 4e091d8ef..ead0806c6 100644
--- a/nx-X11/lib/modules/im/ximcp/imCallbk.c
+++ b/nx-X11/lib/modules/im/ximcp/imCallbk.c
@@ -624,16 +624,16 @@ _XimPreeditCaretCallback(Xim im,
      */
     {
 	CARD8 buf[sz_ximPacketHeader + sz_ximPreeditCaretReply];
-	INT16 len = sz_XIMID + sz_XICID + sz_ximPreeditCaretReply;
+	INT16 rlen = sz_XIMID + sz_XICID + sz_ximPreeditCaretReply;
 	int p;
 
-	_XimSetHeader((XPointer)buf, XIM_PREEDIT_CARET_REPLY, 0, &len);
+	_XimSetHeader((XPointer)buf, XIM_PREEDIT_CARET_REPLY, 0, &rlen);
 	p = XIM_HEADER_SIZE;
 	*(CARD16*)&buf[p] = (CARD16)im->private.proto.imid; p += sz_CARD16;
 	*(CARD16*)&buf[p] = (CARD16)ic->private.proto.icid; p += sz_CARD16;
 	*(CARD32*)&buf[p] = (CARD32)cbs.position;
 
-	if (!(_XimWriteData(im, len, buf))) {
+	if (!(_XimWriteData(im, rlen, buf))) {
 	    return XimCbError;
 	}
 	_XimFlushData(im);
diff --git a/nx-X11/lib/modules/im/ximcp/imDefIc.c b/nx-X11/lib/modules/im/ximcp/imDefIc.c
index 3cf46827a..30c2d0136 100644
--- a/nx-X11/lib/modules/im/ximcp/imDefIc.c
+++ b/nx-X11/lib/modules/im/ximcp/imDefIc.c
@@ -231,10 +231,9 @@ _XimReCreateIC(ic)
 
     _XimRegisterFilter(ic);
     MARK_IC_CONNECTED(ic);
-    if (save_ic->private.proto.ic_resources)
-	Xfree(save_ic->private.proto.ic_resources);
-    if (save_ic->private.proto.ic_inner_resources)
-	Xfree(save_ic->private.proto.ic_inner_resources);
+
+    Xfree(save_ic->private.proto.ic_resources);
+    Xfree(save_ic->private.proto.ic_inner_resources);
     Xfree(save_ic);
     return True;
 
@@ -833,7 +832,7 @@ _XimDestroyICCheck(
      && (imid == im->private.proto.imid)
      && (buf_s[2] & XIM_ICID_VALID)
      && (icid == ic->private.proto.icid))
-    ret = False;
+        ret = False;
     return ret;
 }
 
@@ -845,22 +844,22 @@ _XimProtoICFree(
     Xim		 im = (Xim)ic->core.im;
 #endif
 
-    if (ic->private.proto.preedit_font) {
-	Xfree(ic->private.proto.preedit_font);
-	ic->private.proto.preedit_font = NULL;
-    }
-    if (ic->private.proto.status_font) {
-	Xfree(ic->private.proto.status_font);
-	ic->private.proto.status_font = NULL;
-    }
+
+    Xfree(ic->private.proto.preedit_font);
+    ic->private.proto.preedit_font = NULL;
+
+
+    Xfree(ic->private.proto.status_font);
+    ic->private.proto.status_font = NULL;
+
     if (ic->private.proto.commit_info) {
 	_XimFreeCommitInfo(ic);
 	ic->private.proto.commit_info = NULL;
     }
-    if (ic->private.proto.ic_inner_resources) {
-	Xfree(ic->private.proto.ic_inner_resources);
-	ic->private.proto.ic_inner_resources = NULL;
-    }
+
+    Xfree(ic->private.proto.ic_inner_resources);
+    ic->private.proto.ic_inner_resources = NULL;
+
 
 #ifdef XIM_CONNECTABLE
     if (IS_SERVER_CONNECTED(im) && IS_RECONNECTABLE(im)) {
@@ -868,18 +867,16 @@ _XimProtoICFree(
     }
 #endif /* XIM_CONNECTABLE */
 
-    if (ic->private.proto.saved_icvalues) {
-	Xfree(ic->private.proto.saved_icvalues);
-	ic->private.proto.saved_icvalues = NULL;
-    }
-    if (ic->private.proto.ic_resources) {
-	Xfree(ic->private.proto.ic_resources);
-	ic->private.proto.ic_resources = NULL;
-    }
-    if (ic->core.hotkey) {
-	Xfree(ic->core.hotkey);
-	ic->core.hotkey = NULL;
-    }
+    Xfree(ic->private.proto.saved_icvalues);
+    ic->private.proto.saved_icvalues = NULL;
+
+
+    Xfree(ic->private.proto.ic_resources);
+    ic->private.proto.ic_resources = NULL;
+
+
+    Xfree(ic->core.hotkey);
+    ic->core.hotkey = NULL;
 
     return;
 }
@@ -927,6 +924,30 @@ _XimProtoDestroyIC(
     return;
 }
 
+/*
+ * Some functions require the request queue from the server to be flushed
+ * so that the ordering of client initiated status changes and those requested
+ * by the server is well defined.
+ * _XimSync() would be the function of choice here as it should get a
+ * XIM_SYNC_REPLY back from the server.
+ * This however isn't implemented in the piece of junk that is used by most
+ * input servers as the server side protocol if to XIM.
+ * Since this code is not shipped as a library together with the client side
+ * XIM code but is duplicated by every input server around the world there
+ * is no easy fix to this but this ugly hack below.
+ * Obtaining an IC value from the server sends a request and empties out the
+ * event/server request queue until the answer to this request is found.
+ * Thus it is guaranteed that any pending server side request gets processed.
+ * This is what the hack below is doing.
+ */
+
+static void
+BrokenSyncWithServer(XIC xic)
+{
+    CARD32 dummy;
+    XGetICValues(xic, XNFilterEvents, &dummy, NULL);
+}
+
 static void
 _XimProtoSetFocus(
     XIC		 xic)
@@ -957,6 +978,7 @@ _XimProtoSetFocus(
 	}
     }
 #endif /* XIM_CONNECTABLE */
+    BrokenSyncWithServer(xic);
 
     buf_s[0] = im->private.proto.imid;		/* imid */
     buf_s[1] = ic->private.proto.icid;		/* icid */
@@ -1003,6 +1025,8 @@ _XimProtoUnsetFocus(
     }
 #endif /* XIM_CONNECTABLE */
 
+    BrokenSyncWithServer(xic);
+
     buf_s[0] = im->private.proto.imid;		/* imid */
     buf_s[1] = ic->private.proto.icid;		/* icid */
 
diff --git a/nx-X11/lib/modules/im/ximcp/imInsClbk.c b/nx-X11/lib/modules/im/ximcp/imInsClbk.c
index 3ae6b1bd7..214e0a9af 100644
--- a/nx-X11/lib/modules/im/ximcp/imInsClbk.c
+++ b/nx-X11/lib/modules/im/ximcp/imInsClbk.c
@@ -108,7 +108,7 @@ _XimFilterPropertyNotify(
     }
 
     lock = True;
-    for( ii = 0; ii < nitems; ii++, atoms ) {
+    for( ii = 0; ii < nitems; ii++ ) {
 	if(XGetSelectionOwner (display, atoms[ii])) {
 	    for( icb = callback_list; icb; icb = icb->next ) {
 		if( !icb->call  &&  !icb->destroy ) {
diff --git a/nx-X11/lib/modules/im/ximcp/imLcIm.c b/nx-X11/lib/modules/im/ximcp/imLcIm.c
index b3662bc96..41d4fb3fa 100644
--- a/nx-X11/lib/modules/im/ximcp/imLcIm.c
+++ b/nx-X11/lib/modules/im/ximcp/imLcIm.c
@@ -82,8 +82,8 @@ struct _XimCacheStruct {
     DTCharIndex     mbused;
     DTCharIndex     wcused;
     DTCharIndex     utf8used;
-    char            fname[1];
-    /* char encoding[1] */
+    char            fname[];
+    /* char encoding[] */
 };
 
 static struct  _XimCacheStruct* _XimCache_mmap = NULL;
@@ -281,7 +281,7 @@ _XimReadCachedDefaultTree(
     assert (m->id == XIM_CACHE_MAGIC);
     assert (m->version == XIM_CACHE_VERSION);
     if (size != m->size ||
-	size < XOffsetOf (struct _XimCacheStruct, fname) + namelen + encodinglen) {
+	size < sizeof (struct _XimCacheStruct) + namelen + encodinglen) {
 	fprintf (stderr, "Ignoring broken XimCache %s [%s]\n", name, encoding);
         munmap (m, size);
         return False;
@@ -442,7 +442,7 @@ _XimWriteCachedDefaultTree(
     int   fd;
     FILE *fp;
     struct _XimCacheStruct *m;
-    int   msize = (XOffsetOf(struct _XimCacheStruct, fname)
+    int   msize = (sizeof(struct _XimCacheStruct)
 		   + strlen(name) + strlen(encoding) + 2
 		   + XIM_CACHE_TREE_ALIGNMENT-1) & -XIM_CACHE_TREE_ALIGNMENT;
     DefTreeBase *b = &im->private.local.base;
diff --git a/nx-X11/lib/modules/im/ximcp/imLcLkup.c b/nx-X11/lib/modules/im/ximcp/imLcLkup.c
index 878b8e350..ac9a1705c 100644
--- a/nx-X11/lib/modules/im/ximcp/imLcLkup.c
+++ b/nx-X11/lib/modules/im/ximcp/imLcLkup.c
@@ -61,8 +61,8 @@ _XimLocalMbLookupString(XIC xic, XKeyEvent *ev, char *buffer, int bytes,
 	    ||(ic->private.local.brl_committed != 0))) {
 	if (ic->private.local.brl_committed != 0) { /* Braille Event */
 	    unsigned char pattern = ic->private.local.brl_committed;
-	    char mb[XLC_PUBLIC(ic->core.im->core.lcd, mb_cur_max)];
-	    ret = _Xlcwctomb(ic->core.im->core.lcd, mb, BRL_UC_ROW | pattern);
+	    char mb2[XLC_PUBLIC(ic->core.im->core.lcd, mb_cur_max)];
+	    ret = _Xlcwctomb(ic->core.im->core.lcd, mb2, BRL_UC_ROW | pattern);
 	    if(ret > bytes) {
 		if(status) *status = XBufferOverflow;
 		return(ret);
@@ -74,7 +74,7 @@ _XimLocalMbLookupString(XIC xic, XKeyEvent *ev, char *buffer, int bytes,
 		} else {
 		    if(status) *status = XLookupChars;
 		}
-		memcpy(buffer, mb, ret);
+		memcpy(buffer, mb2, ret);
 	    } else {
 		if(keysym) {
 		    if(status) *status = XLookupKeySym;