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ss: reject direct protocol metadata if NULL ss wsi

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The ss wsi may be NULL after any time around the event loop.  Make sure we
check that before we start trying to use it.
This commit is contained in:
Andy Green 2022-02-09 11:59:06 +00:00
parent 1027d3a740
commit 3eae5f8bca
1 changed files with 1 additions and 1 deletions
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2
lib/secure-streams/policy-common.c
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@ -177,7 +177,7 @@ lws_ss_get_metadata(struct lws_ss_handle *h, const char *name,
return 0;
}
#if defined(LWS_WITH_SS_DIRECT_PROTOCOL_STR)
if (!(h->policy->flags & LWSSSPOLF_DIRECT_PROTO_STR))
if (!(h->policy->flags & LWSSSPOLF_DIRECT_PROTO_STR) || !h->wsi)
goto bail;
n = lws_http_string_to_known_header(name, strlen(name));