curl failed to connect with socks5.

Hi,

On Ubuntu 20.04, I run Tor on 1270.0.0.1:9050 and do the following testings:

werner_at_X10DAi-01:~$ curl -vI -x socks5h://127.0.0.1:9050 www.baidu.com
* Trying 127.0.0.1:9050...
* TCP_NODELAY set
* SOCKS5 communication to www.baidu.com:80
* SOCKS5 connect to www.baidu.com:80 (remotely resolved)
* SOCKS5 request granted.
* Connected to 127.0.0.1 (127.0.0.1) port 9050 (#0)
> HEAD / HTTP/1.1
> Host: www.baidu.com
> User-Agent: curl/7.68.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
HTTP/1.1 200 OK
< Accept-Ranges: bytes
Accept-Ranges: bytes
< Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
Cache-Control: private, no-cache, no-store, proxy-revalidate, no-transform
< Connection: keep-alive
Connection: keep-alive
< Content-Length: 277
Content-Length: 277
< Content-Type: text/html
Content-Type: text/html
< Date: Fri, 04 Sep 2020 14:07:35 GMT
Date: Fri, 04 Sep 2020 14:07:35 GMT
< Etag: "575e1f6f-115"
Etag: "575e1f6f-115"
< Last-Modified: Mon, 13 Jun 2016 02:50:23 GMT
Last-Modified: Mon, 13 Jun 2016 02:50:23 GMT
< Pragma: no-cache
Pragma: no-cache
< Server: bfe/1.0.8.18
Server: bfe/1.0.8.18

<
* Connection #0 to host 127.0.0.1 left intact

werner_at_X10DAi-01:~$ curl -vI -x socks5://127.0.0.1:9050 www.baidu.com
* Trying 127.0.0.1:9050...
* TCP_NODELAY set
* SOCKS5 communication to www.baidu.com:80
* SOCKS5 connect to IPv4 220.181.38.150:80 (locally resolved)
* Can't complete SOCKS5 connection to 220.181.38.150:80. (1)
* Closing connection 0
curl: (7) Can't complete SOCKS5 connection to 220.181.38.150:80. (1)

As you can see, the curl connection via sock5h protocol succeeded but
failed with the socks5. Any hints for this problem?

Regards,

-- 
Hongyi Zhao <hongyi.zhao_at_gmail.com>
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