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check rvalues from MHD_add_response_header in examples

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Christian Grothoff
2023-09-25 21:30:03 +02:00
parent 2212a37256
commit 9327a8cc46
1 changed files with 21 additions and 5 deletions
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src/examples/websocket_threaded_example.c
+21 -5
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@@ -471,8 +471,13 @@ send_upgrade_required (struct MHD_Connection *con)
MHD_create_response_from_buffer_static (strlen (UPGRADE_REQUIRED_PAGE),
(const void *)
UPGRADE_REQUIRED_PAGE);
MHD_add_response_header (res, MHD_HTTP_HEADER_SEC_WEBSOCKET_VERSION,
WS_SEC_WEBSOCKET_VERSION);
if (MHD_YES !=
MHD_add_response_header (res, MHD_HTTP_HEADER_SEC_WEBSOCKET_VERSION,
WS_SEC_WEBSOCKET_VERSION))
{
MHD_destroy_response (res);
return MHD_NO;
}
ret = MHD_queue_response (con, MHD_HTTP_UPGRADE_REQUIRED, res);
MHD_destroy_response (res);
return ret;
@@ -891,10 +896,21 @@ ahc_cb (void *cls, struct MHD_Connection *con, const char *url,
return ret;
}
res = MHD_create_response_for_upgrade (&uh_cb, NULL);
MHD_add_response_header (res, MHD_HTTP_HEADER_UPGRADE, WS_UPGRADE_VALUE);
MHD_add_response_header (res, MHD_HTTP_HEADER_SEC_WEBSOCKET_ACCEPT,
ws_ac_value);
if (MHD_YES !=
MHD_add_response_header (res, MHD_HTTP_HEADER_SEC_WEBSOCKET_ACCEPT,
ws_ac_value))
{
free (ws_ac_value);
MHD_destroy_response (res);
return MHD_NO;
}
free (ws_ac_value);
if (MHD_YES !=
MHD_add_response_header (res, MHD_HTTP_HEADER_UPGRADE, WS_UPGRADE_VALUE))
{
MHD_destroy_response (res);
return MHD_NO;
}
ret = MHD_queue_response (con, MHD_HTTP_SWITCHING_PROTOCOLS, res);
MHD_destroy_response (res);
return ret;