urldata: don't touch data->set.httpversion at run-time

Rename it to 'httpwant' and make a cloned field in the state struct as
well for run-time updates.

Also: refuse non-supported HTTP versions. Verified with test 129.

Closes #6585
This commit is contained in:
Daniel Stenberg 2021-02-11 16:30:32 +01:00
parent bd6b54ba1f
commit 88dd1a8a11
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17 changed files with 109 additions and 34 deletions

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@ -888,7 +888,7 @@ CURLcode Curl_vsetopt(struct Curl_easy *data, CURLoption option, va_list param)
if(arg == CURL_HTTP_VERSION_NONE)
arg = CURL_HTTP_VERSION_2TLS;
#endif
data->set.httpversion = arg;
data->set.httpwant = (unsigned char)arg;
break;
case CURLOPT_EXPECT_100_TIMEOUT_MS: