openssl: fix keypress requirement in apps on win32

Original source:

http://openssl.6102.n7.nabble.com/PATCH-s-client-Fix-keypress-requirement-with-redirected-input-on-Windows-td46787.html

Reviewed-By: Fedor Indutny <fedor@indutny.com>

deps/openssl/openssl/apps/s_client.c

@@ -180,6 +180,13 @@ typedef unsigned int u_int;
 # include <fcntl.h>
 #endif
 
+/* Use Windows API with STD_INPUT_HANDLE when checking for input?
+   Don't look at OPENSSL_SYS_MSDOS for this, since it is always defined if
+   OPENSSL_SYS_WINDOWS is defined */
+#if defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_WINCE) && defined(STD_INPUT_HANDLE)
+#define OPENSSL_USE_STD_INPUT_HANDLE
+#endif
+
 #undef PROG
 #define PROG    s_client_main
 
@@ -226,6 +233,7 @@ static int ocsp_resp_cb(SSL *s, void *arg);
 static BIO *bio_c_out = NULL;
 static int c_quiet = 0;
 static int c_ign_eof = 0;
+static int c_no_rand_screen = 0;
 
 #ifndef OPENSSL_NO_PSK
 /* Default PSK identity and key */
@@ -428,6 +436,10 @@ static void sc_usage(void)
                " -keymatexport label   - Export keying material using label\n");
     BIO_printf(bio_err,
                " -keymatexportlen len  - Export len bytes of keying material (default 20)\n");
+#ifdef OPENSSL_SYS_WINDOWS
+    BIO_printf(bio_err,
+               " -no_rand_screen  - Do not use RAND_screen() to initialize random state\n");
+#endif
 }
 
 #ifndef OPENSSL_NO_TLSEXT
@@ -1004,6 +1016,10 @@ int MAIN(int argc, char **argv)
             keymatexportlen = atoi(*(++argv));
             if (keymatexportlen == 0)
                 goto bad;
+#ifdef OPENSSL_SYS_WINDOWS
+        } else if (strcmp(*argv, "-no_rand_screen") == 0) {
+          c_no_rand_screen = 1;
+#endif
         } else {
             BIO_printf(bio_err, "unknown option %s\n", *argv);
             badop = 1;
@@ -1087,7 +1103,7 @@ int MAIN(int argc, char **argv)
         }
     }
 
-    if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL
+    if (!app_RAND_load_file(NULL, bio_err, ++c_no_rand_screen) && inrand == NULL
         && !RAND_status()) {
         BIO_printf(bio_err,
                    "warning, not much extra random data, consider using the -rand option\n");
@@ -1584,18 +1600,11 @@ int MAIN(int argc, char **argv)
                     tv.tv_usec = 0;
                     i = select(width, (void *)&readfds, (void *)&writefds,
                                NULL, &tv);
-# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
-                    if (!i && (!_kbhit() || !read_tty))
-                        continue;
-# else
-                    if (!i && (!((_kbhit())
-                                 || (WAIT_OBJECT_0 ==
-                                     WaitForSingleObject(GetStdHandle
-                                                         (STD_INPUT_HANDLE),
-                                                         0)))
-                               || !read_tty))
-                        continue;
-# endif
+#if defined(OPENSSL_USE_STD_INPUT_HANDLE)
+                    if(!i && (!((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0))) || !read_tty) ) continue;
+#else
+                    if(!i && (!_kbhit() || !read_tty) ) continue;
+#endif
                 } else
                     i = select(width, (void *)&readfds, (void *)&writefds,
                                NULL, timeoutp);
@@ -1793,13 +1802,11 @@ int MAIN(int argc, char **argv)
             }
         }
 #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)
-# if defined(OPENSSL_SYS_WINCE) || defined(OPENSSL_SYS_MSDOS)
+#if defined(OPENSSL_USE_STD_INPUT_HANDLE)
+        else if ((_kbhit()) || (WAIT_OBJECT_0 == WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
+#else
         else if (_kbhit())
-# else
-        else if ((_kbhit())
-                 || (WAIT_OBJECT_0 ==
-                     WaitForSingleObject(GetStdHandle(STD_INPUT_HANDLE), 0)))
-# endif
+#endif
 #elif defined (OPENSSL_SYS_NETWARE)
         else if (_kbhit())
 #elif defined(OPENSSL_SYS_BEOS_R5)