curl

curl (0.9.8a).txt

$ curl --verbose -i https://gmail.com/.well-known/host-meta
* About to connect() to gmail.com port 443 (#0)
*   Trying 74.125.67.17... connected
* Connected to gmail.com (74.125.67.17) port 443 (#0)
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/certs/ca-certificates.crt
  CApath: none
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS handshake, Server finished (14):
* SSLv3, TLS handshake, Client key exchange (16):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSLv3, TLS change cipher, Client hello (1):
* SSLv3, TLS handshake, Finished (20):
* SSL connection using RC4-SHA
* Server certificate:
* 	 subject: C=US; ST=California; L=Mountain View; O=Google Inc; CN=mail.google.com
* 	 start date: 2009-12-18 00:00:00 GMT
* 	 expire date: 2011-12-18 23:59:59 GMT
* SSL: certificate subject name 'mail.google.com' does not match target host name 'gmail.com'
* Closing connection #0
* SSLv3, TLS alert, Client hello (1):
curl: (51) SSL: certificate subject name 'mail.google.com' does not match target host name 'gmail.com'

curl --version (0.9.8a).txt

$ curl --version
curl 7.20.0 (x86_64-unknown-linux-gnu) libcurl/7.20.0 OpenSSL/0.9.8a zlib/1.2.3 libidn/0.6.9
Protocols: dict file ftp ftps http https imap imaps pop3 pop3s rtsp smtp smtps telnet tftp 
Features: IDN IPv6 Largefile NTLM SSL libz 

# Note that this version of OpenSSL pre-dates the introduction of SNI support and thus
# exhibits the issue in curl.  Post-0.9.8f should work correctly.

irb (0.9.8a).txt

$ irb
Custom IRB Environment Loaded.
>> require 'open-uri'; open('https://gmail.com/.well-known/host-meta') { |f| f.read }
OpenSSL::SSL::SSLError: hostname not match
	from /usr/local/lib/ruby/1.8/openssl/ssl.rb:91:in `post_connection_check'
	from /usr/local/lib/ruby/1.8/open-uri.rb:251:in `open_http'
	from /usr/local/lib/ruby/1.8/net/http.rb:543:in `start'
	from /usr/local/lib/ruby/1.8/open-uri.rb:242:in `open_http'
	from /usr/local/lib/ruby/1.8/open-uri.rb:626:in `buffer_open'
	from /usr/local/lib/ruby/1.8/open-uri.rb:164:in `open_loop'
	from /usr/local/lib/ruby/1.8/open-uri.rb:162:in `catch'
	from /usr/local/lib/ruby/1.8/open-uri.rb:162:in `open_loop'
	from /usr/local/lib/ruby/1.8/open-uri.rb:132:in `open_uri'
	from /usr/local/lib/ruby/1.8/open-uri.rb:528:in `open'
	from /usr/local/lib/ruby/1.8/open-uri.rb:30:in `open'
	from (irb):1