tools: partially detect quic support in shared_openssl

If the shared openssl does not have the `OPENSSL_INFO_QUIC` define,
then it definitely does not have the QUIC apis. This is only a partially
accurate check because it does not detect if the shared openssl was
actually *built* without the OPENSSL_NO_QUIC define set.

Signed-off-by: James M Snell <jasnell@gmail.com>

Author: jasnell

configure.py

@@ -38,6 +38,7 @@
 sys.path.insert(0, 'tools')
 import getmoduleversion
 import getnapibuildversion
+import getsharedopensslhasquic
 from gyp_node import run_gyp
 
 # parse our options
@@ -1348,6 +1349,7 @@ def configure_openssl(o):
   variables['node_shared_openssl'] = b(options.shared_openssl)
   variables['openssl_is_fips'] = b(options.openssl_is_fips)
   variables['openssl_fips'] = ''
+  variables['openssl_quic'] = b(True)
 
   if options.openssl_no_asm:
     variables['openssl_no_asm'] = 1
@@ -1403,6 +1405,9 @@ def without_ssl_error(option):
   if options.openssl_fips or options.openssl_fips == '':
      error('FIPS is not supported in this version of Node.js')
 
+  if options.shared_openssl:
+    variables['openssl_quic'] = b(getsharedopensslhasquic.get_has_quic(options.__dict__['shared_openssl_includes']))
+
   configure_library('openssl', o)
 
 

tools/getsharedopensslhasquic.py

@@ -0,0 +1,19 @@
+from __future__ import print_function
+import os
+import re
+
+def get_has_quic(include_path):
+  openssl_crypto_h = os.path.join(
+      include_path,
+      'openssl',
+      'crypto.h')
+
+  f = open(openssl_crypto_h)
+
+  regex = '^#\s*define OPENSSL_INFO_QUIC'
+
+  for line in f:
+    if (re.match(regex, line)):
+      return True
+
+  return False