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-rw-r--r--nx-X11/programs/Xserver/xkb/xkb.c66
1 files changed, 41 insertions, 25 deletions
diff --git a/nx-X11/programs/Xserver/xkb/xkb.c b/nx-X11/programs/Xserver/xkb/xkb.c
index d8b5b2ce1..778269f7c 100644
--- a/nx-X11/programs/Xserver/xkb/xkb.c
+++ b/nx-X11/programs/Xserver/xkb/xkb.c
@@ -4437,26 +4437,30 @@ ProcXkbGetGeometry(ClientPtr client)
/***====================================================================***/
-static char *
-_GetCountedString(char **wire_inout,Bool swap)
+static Status
+_GetCountedString(char **wire_inout, ClientPtr client, char **str)
{
-char * wire,*str;
+char * wire, *next;
CARD16 len;
wire= *wire_inout;
len= (CARD16 *)wire;
- if (swap) {
+ if (client->swapped) {
register int n;
swaps(&len, n);
}
- str= (char *)_XkbAlloc(len+1);
- if (str) {
- memcpy(str,&wire[2],len);
- str[len]= '\0';
- }
- wire+= XkbPaddedSize(len+2);
- *wire_inout= wire;
- return str;
+ next = wire + XkbPaddedSize(len + 2);
+ /* Check we're still within the size of the request */
+ if (client->req_len <
+ bytes_to_int32(next - (char *) client->requestBuffer))
+ return BadValue;
+ *str = malloc(len + 1);
+ if (!*str)
+ return BadAlloc;
+ memcpy(*str, &wire[2], len);
+ *(*str + len) = '\0';
+ *wire_inout = next;
+ return Success;
}
static Status
@@ -4470,6 +4474,7 @@ xkbDoodadWireDesc * dWire;
xkbAnyDoodadWireDesc any;
xkbTextDoodadWireDesc text;
XkbDoodadPtr doodad;
+Status status;
dWire= (xkbDoodadWireDesc *)(*wire_inout);
any = dWire->any;
@@ -4521,8 +4526,14 @@ XkbDoodadPtr doodad;
doodad->text.width= text.width;
doodad->text.height= text.height;
doodad->text.color_ndx= dWire->text.colorNdx;
- doodad->text.text= _GetCountedString(&wire,client->swapped);
- doodad->text.font= _GetCountedString(&wire,client->swapped);
+ status = _GetCountedString(&wire, client, &doodad->text.text);
+ if (status != Success)
+ return status;
+ status = _GetCountedString(&wire, client, &doodad->text.font);
+ if (status != Success) {
+ free (doodad->text.text);
+ return status;
+ }
break;
case XkbIndicatorDoodad:
if (dWire->indicator.onColorNdx>=geom->num_colors) {
@@ -4557,7 +4568,9 @@ XkbDoodadPtr doodad;
}
doodad->logo.color_ndx= dWire->logo.colorNdx;
doodad->logo.shape_ndx= dWire->logo.shapeNdx;
- doodad->logo.logo_name= _GetCountedString(&wire,client->swapped);
+ status = _GetCountedString(&wire, client, &doodad->logo.logo_name);
+ if (status != Success)
+ return status;
break;
default:
client->errorValue= _XkbErrCode2(0x4F,dWire->any.type);
@@ -4792,17 +4805,19 @@ Status status;
char * wire;
wire= (char *)&req[1];
- geom->label_font= _GetCountedString(&wire,client->swapped);
+ status = _GetCountedString(&wire, client, &geom->label_font);
+ if (status != Success)
+ return status;
for (i=0;i<req->nProperties;i++) {
char *name,*val;
- name= _GetCountedString(&wire,client->swapped);
- if (!name)
- return BadAlloc;
- val= _GetCountedString(&wire,client->swapped);
- if (!val) {
+ status = _GetCountedString(&wire, client, &name);
+ if (status != Success)
+ return status;
+ status = _GetCountedString(&wire, client, &val);
+ if (status != Success) {
xfree(name);
- return BadAlloc;
+ return status;
}
if (XkbAddGeomProperty(geom,name,val)==NULL) {
xfree(name);
@@ -4833,9 +4848,10 @@ char * wire;
for (i=0;i<req->nColors;i++) {
char *name;
- name= _GetCountedString(&wire,client->swapped);
- if (!name)
- return BadAlloc;
+
+ status = _GetCountedString(&wire, client, &name);
+ if (status != Success)
+ return status;
if (!XkbAddGeomColor(geom,name,geom->num_colors)) {
xfree(name);
return BadAlloc;