minor fixes for Windows

- fix to use secure URL in generated Windows resources
- fix a potentially uninitialized variable
- fix an unused variable warning

CLA: trivial

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com>
(Merged from https://github.com/openssl/openssl/pull/7189)

crypto/bio/b_sock2.c

@@ -133,7 +133,9 @@ int BIO_connect(int sock, const BIO_ADDR *addr, int options)
  */
 int BIO_bind(int sock, const BIO_ADDR *addr, int options)
 {
+# ifndef OPENSSL_SYS_WINDOWS
     int on = 1;
+# endif
 
     if (sock == -1) {
         BIOerr(BIO_F_BIO_BIND, BIO_R_INVALID_SOCKET);

crypto/cryptlib.c

@@ -204,7 +204,7 @@ int OPENSSL_isservice(void)
 
     if (_OPENSSL_isservice.p == NULL) {
         HANDLE mod = GetModuleHandle(NULL);
-        FARPROC f;
+        FARPROC f = NULL;
 
         if (mod != NULL)
             f = GetProcAddress(mod, "_OPENSSL_isservice");

util/mkrc.pl

@@ -70,7 +70,7 @@ BEGIN
         BLOCK "040904b0"
         BEGIN
             // Required:
-            VALUE "CompanyName", "The OpenSSL Project, http://www.openssl.org/\\0"
+            VALUE "CompanyName", "The OpenSSL Project, https://www.openssl.org/\\0"
             VALUE "FileDescription", "$description\\0"
             VALUE "FileVersion", "$version\\0"
             VALUE "InternalName", "$filename\\0"