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glx: glxcmds: use rpcbuf for payload in __glXDisp_QueryExtensionsString

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Signed-off-by: sesankm <26676400+sesankm@users.noreply.github.com>
This commit is contained in:
sesankm
2025-09-08 21:22:06 -05:00
committed by Enrico Weigelt
parent 5a0b736952
commit 16d6182e15
1 changed files with 7 additions and 24 deletions
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31
glx/glxcmds.c
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@@ -2327,43 +2327,26 @@ __glXDisp_QueryExtensionsString(__GLXclientState * cl, GLbyte * pc)
ClientPtr client = cl->client;
xGLXQueryExtensionsStringReq *req = (xGLXQueryExtensionsStringReq *) pc;
__GLXscreen *pGlxScreen;
size_t n, length;
char *buf;
int err;
if (!validGlxScreen(client, req->screen, &pGlxScreen, &err))
return err;
n = strlen(pGlxScreen->GLXextensions) + 1;
length = __GLX_PAD(n) >> 2;
/* client expects payload to contain a null terminated string
* and uses this header to determine how many bytes to process */
size_t n = strlen(pGlxScreen->GLXextensions) + 1;
xGLXQueryExtensionsStringReply reply = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = length,
.n = n
};
/* Allocate buffer to make sure it's a multiple of 4 bytes big. */
buf = calloc(length, 4);
if (buf == NULL)
return BadAlloc;
memcpy(buf, pGlxScreen->GLXextensions, n);
if (client->swapped) {
swaps(&reply.sequenceNumber);
swapl(&reply.length);
swapl(&reply.n);
WriteToClient(client, sizeof(xGLXQueryExtensionsStringReply), &reply);
WriteToClient(client, length << 2, buf);
}
else {
WriteToClient(client, sizeof(xGLXQueryExtensionsStringReply), &reply);
WriteToClient(client, (int) (length << 2), buf);
}
free(buf);
return Success;
x_rpcbuf_t rpcbuf = { .swapped = client->swapped, .err_clear = TRUE };
x_rpcbuf_write_string_0t_pad(&rpcbuf, pGlxScreen->GLXextensions);
return X_SEND_REPLY_WITH_RPCBUF(client, reply, rpcbuf);
}
#ifndef GLX_VENDOR_NAMES_EXT