(!1601) Xext: xres: use static initialization

* use static initialization where applicable
* drop unneeded setting of zero values

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

Xext/xres.c

@@ -195,16 +195,15 @@ DestroyConstructResourceBytesCtx(ConstructResourceBytesCtx *ctx)
 static int
 ProcXResQueryVersion(ClientPtr client)
 {
+    REQUEST_SIZE_MATCH(xXResQueryVersionReq);
+
     xXResQueryVersionReply rep = {
         .type = X_Reply,
         .sequenceNumber = client->sequence,
-        .length = 0,
         .server_major = SERVER_XRES_MAJOR_VERSION,
         .server_minor = SERVER_XRES_MINOR_VERSION
     };
 
-    REQUEST_SIZE_MATCH(xXResQueryVersionReq);
-
     if (client->swapped) {
         swaps(&rep.sequenceNumber);
         swapl(&rep.length);
@@ -218,16 +217,13 @@ ProcXResQueryVersion(ClientPtr client)
 static int
 ProcXResQueryClients(ClientPtr client)
 {
-    /* REQUEST(xXResQueryClientsReq); */
-    xXResQueryClientsReply rep;
     int *current_clients;
-    int i, num_clients;
+    int i, num_clients = 0;
 
     REQUEST_SIZE_MATCH(xXResQueryClientsReq);
 
     current_clients = xallocarray(currentMaxClients, sizeof(int));
 
-    num_clients = 0;
     for (i = 0; i < currentMaxClients; i++) {
         if (clients[i]) {
             current_clients[num_clients] = i;
@@ -235,7 +231,7 @@ ProcXResQueryClients(ClientPtr client)
         }
     }
 
-    rep = (xXResQueryClientsReply) {
+    xXResQueryClientsReply rep = {
         .type = X_Reply,
         .sequenceNumber = client->sequence,
         .length = bytes_to_int32(num_clients * sz_xXResClient),
@@ -298,12 +294,11 @@ static int
 ProcXResQueryClientResources(ClientPtr client)
 {
     REQUEST(xXResQueryClientResourcesReq);
-    xXResQueryClientResourcesReply rep;
-    int i, clientID, num_types;
-    int *counts;
-
     REQUEST_SIZE_MATCH(xXResQueryClientResourcesReq);
 
+    int i, clientID, num_types = 0;
+    int *counts;
+
     clientID = CLIENT_ID(stuff->xid);
 
     if ((clientID >= currentMaxClients) || !clients[clientID]) {
@@ -315,14 +310,12 @@ ProcXResQueryClientResources(ClientPtr client)
 
     FindAllClientResources(clients[clientID], ResFindAllRes, counts);
 
-    num_types = 0;
-
     for (i = 0; i <= lastResourceType; i++) {
         if (counts[i])
             num_types++;
     }
 
-    rep = (xXResQueryClientResourcesReply) {
+    xXResQueryClientResourcesReply rep = {
         .type = X_Reply,
         .sequenceNumber = client->sequence,
         .length = bytes_to_int32(num_types * sz_xXResType),
@@ -374,12 +367,11 @@ static int
 ProcXResQueryClientPixmapBytes(ClientPtr client)
 {
     REQUEST(xXResQueryClientPixmapBytesReq);
-    xXResQueryClientPixmapBytesReply rep;
-    int clientID;
-    unsigned long bytes;
-
     REQUEST_SIZE_MATCH(xXResQueryClientPixmapBytesReq);
 
+    int clientID;
+    unsigned long bytes = 0;
+
     clientID = CLIENT_ID(stuff->xid);
 
     if ((clientID >= currentMaxClients) || !clients[clientID]) {
@@ -387,20 +379,15 @@ ProcXResQueryClientPixmapBytes(ClientPtr client)
         return BadValue;
     }
 
-    bytes = 0;
-
     FindAllClientResources(clients[clientID], ResFindResourcePixmaps,
                            (void *) (&bytes));
 
-    rep = (xXResQueryClientPixmapBytesReply) {
+    xXResQueryClientPixmapBytesReply rep = {
         .type = X_Reply,
         .sequenceNumber = client->sequence,
-        .length = 0,
         .bytes = bytes,
 #ifdef _XSERVER64
         .bytes_overflow = bytes >> 32
-#else
-        .bytes_overflow = 0
 #endif
     };
     if (client->swapped) {
@@ -459,9 +446,10 @@ static Bool
 ConstructClientIdValue(ClientPtr sendClient, ClientPtr client, CARD32 mask,
                        ConstructClientIdCtx *ctx)
 {
-    xXResClientIdValue rep;
+    xXResClientIdValue rep = {
+        .spec.client = client->clientAsMask,
+    };
 
-    rep.spec.client = client->clientAsMask;
     if (client->swapped) {
         swapl (&rep.spec.client);
     }
@@ -473,7 +461,6 @@ ConstructClientIdValue(ClientPtr sendClient, ClientPtr client, CARD32 mask,
         }
 
         rep.spec.mask = X_XResClientXIDMask;
-        rep.length = 0;
         if (sendClient->swapped) {
             swapl (&rep.spec.mask);
             /* swapl (&rep.length, n); - not required for rep.length = 0 */
@@ -502,9 +489,6 @@ ConstructClientIdValue(ClientPtr sendClient, ClientPtr client, CARD32 mask,
             if (sendClient->swapped) {
                 swapl (&rep.spec.mask);
                 swapl (&rep.length);
-            }
-
-            if (sendClient->swapped) {
                 swapl (value);
             }
             memcpy(ptr, &rep, sizeof(rep));
@@ -587,15 +571,15 @@ ProcXResQueryClientIds (ClientPtr client)
     rc = ConstructClientIds(client, stuff->numSpecs, specs, &ctx);
 
     if (rc == Success) {
-        xXResQueryClientIdsReply  rep = {
+        assert((ctx.resultBytes & 3) == 0);
+
+        xXResQueryClientIdsReply rep = {
             .type = X_Reply,
             .sequenceNumber = client->sequence,
             .length = bytes_to_int32(ctx.resultBytes),
             .numIds = ctx.numIds
         };
 
-        assert((ctx.resultBytes & 3) == 0);
-
         if (client->swapped) {
             swaps (&rep.sequenceNumber);
             swapl (&rep.length);
@@ -952,11 +936,11 @@ static int
 ProcXResQueryResourceBytes (ClientPtr client)
 {
     REQUEST(xXResQueryResourceBytesReq);
+    REQUEST_AT_LEAST_SIZE(xXResQueryResourceBytesReq);
 
     int                          rc;
     ConstructResourceBytesCtx    ctx;
 
-    REQUEST_AT_LEAST_SIZE(xXResQueryResourceBytesReq);
     if (stuff->numSpecs > UINT32_MAX / sizeof(ctx.specs[0]))
         return BadLength;
     REQUEST_FIXED_SIZE(xXResQueryResourceBytesReq,