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path: root/xorg-server/hw/xwin/winmultiwindowclass.c
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Diffstat (limited to 'xorg-server/hw/xwin/winmultiwindowclass.c')
-rwxr-xr-x[-rw-r--r--]xorg-server/hw/xwin/winmultiwindowclass.c39
1 files changed, 25 insertions, 14 deletions
diff --git a/xorg-server/hw/xwin/winmultiwindowclass.c b/xorg-server/hw/xwin/winmultiwindowclass.c
index ced8f4554..e95c138a8 100644..100755
--- a/xorg-server/hw/xwin/winmultiwindowclass.c
+++ b/xorg-server/hw/xwin/winmultiwindowclass.c
@@ -68,7 +68,7 @@ winMultiWindowGetClassHint(WindowPtr pWin, char **res_name, char **res_class)
while (prop) {
if (prop->propertyName == XA_WM_CLASS
&& prop->type == XA_STRING && prop->format == 8 && prop->data) {
- len_name = strlen((char *) prop->data);
+ len_name = strnlen((char *) prop->data, prop->size);
(*res_name) = malloc(len_name + 1);
@@ -78,12 +78,18 @@ winMultiWindowGetClassHint(WindowPtr pWin, char **res_name, char **res_class)
}
/* Add one to len_name to allow copying of trailing 0 */
- strncpy((*res_name), prop->data, len_name + 1);
+ memcpy((*res_name), prop->data, len_name );
+ (*res_name)[len_name]='\0';
- if (len_name == prop->size)
- len_name--;
-
- len_class = strlen(((char *) prop->data) + 1 + len_name);
+ if (len_name < prop->size-1)
+ {
+ // It could be that the string is not null terminated
+ len_class = strnlen(((char *) prop->data) + 1 + len_name, prop->size-1-len_name);
+ }
+ else
+ {
+ len_class = 0;
+ }
(*res_class) = malloc(len_class + 1);
@@ -95,7 +101,8 @@ winMultiWindowGetClassHint(WindowPtr pWin, char **res_name, char **res_class)
return 0;
}
- strcpy((*res_class), ((char *) prop->data) + 1 + len_name);
+ memcpy((*res_class), ((char *) prop->data) + 1 + len_name, len_class);
+ (*res_class)[len_class]='\0';
return 1;
}
@@ -127,8 +134,9 @@ winMultiWindowGetWMHints(WindowPtr pWin, WinXWMHints * hints)
memset(hints, 0, sizeof(WinXWMHints));
while (prop) {
- if (prop->propertyName == XA_WM_HINTS && prop->data) {
- memcpy(hints, prop->data, sizeof(WinXWMHints));
+ if (prop->propertyName == XA_WM_HINTS && prop->data
+ && prop->format == 32) {
+ memcpy (hints, prop->data, 4*(int)prop->size); /* format/8 = 4 */
return 1;
}
else
@@ -201,8 +209,9 @@ winMultiWindowGetWMNormalHints(WindowPtr pWin, WinXSizeHints * hints)
memset(hints, 0, sizeof(WinXSizeHints));
while (prop) {
- if (prop->propertyName == XA_WM_NORMAL_HINTS && prop->data) {
- memcpy(hints, prop->data, sizeof(WinXSizeHints));
+ if (prop->propertyName == XA_WM_NORMAL_HINTS && prop->data
+ && prop->format == 32) {
+ memcpy (hints, prop->data, 4*(int)prop->size); /* format/8 = 4 */
return 1;
}
else
@@ -234,9 +243,11 @@ winMultiWindowGetTransientFor(WindowPtr pWin, Window *pDaddyId)
*pDaddyId = 0;
while (prop) {
- if (prop->propertyName == XA_WM_TRANSIENT_FOR) {
- if (pDaddyId)
- memcpy(pDaddyId, prop->data, sizeof(Window));
+ if (prop->propertyName == XA_WM_TRANSIENT_FOR
+ && prop->format == 32
+ && prop->data) {
+ if (ppDaddy)
+ memcpy (pDaddy, prop->data, 4*(int)prop->size); /* format/8 = 4 */
return 1;
}
else