From fb5d9f1db5552facbc5269bc2856b58f5e4e2d13 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Thu, 25 Aug 2016 08:06:26 +0200
Subject: Windows: UTF-8 opt-in for command-line arguments and console input.

User can make Windows openssl.exe to treat command-line arguments
and console input as UTF-8 By setting OPENSSL_WIN32_UTF8 environment
variable (to any value). This is likely to be required for data
interchangeability with other OSes and PKCS#12 containers generated
with Windows CryptoAPI.

Reviewed-by: Richard Levitte <levitte@openssl.org>
---
 crypto/ui/ui_openssl.c | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

(limited to 'crypto')

diff --git a/crypto/ui/ui_openssl.c b/crypto/ui/ui_openssl.c
index 98fb0e192e..befe97386e 100644
--- a/crypto/ui/ui_openssl.c
+++ b/crypto/ui/ui_openssl.c
@@ -305,23 +305,26 @@ static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
     if (is_a_tty) {
         DWORD numread;
 #  if defined(CP_UTF8)
-        WCHAR wresult[BUFSIZ];
+        if (GetEnvironmentVariableW(L"OPENSSL_WIN32_UTF8", NULL, 0) != 0) {
+            WCHAR wresult[BUFSIZ];
 
-        if (ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE),
+            if (ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE),
                          wresult, maxsize, &numread, NULL)) {
-            if (numread >= 2 &&
-                wresult[numread-2] == L'\r' && wresult[numread-1] == L'\n') {
-                wresult[numread-2] = L'\n';
-                numread--;
+                if (numread >= 2 &&
+                    wresult[numread-2] == L'\r' &&
+                    wresult[numread-1] == L'\n') {
+                    wresult[numread-2] = L'\n';
+                    numread--;
+                }
+                wresult[numread] = '\0';
+                if (WideCharToMultiByte(CP_UTF8, 0, wresult, -1,
+                                        result, sizeof(result), NULL, 0) > 0)
+                    p = result;
+
+                OPENSSL_cleanse(wresult, sizeof(wresult));
             }
-            wresult[numread] = '\0';
-            if (WideCharToMultiByte(CP_UTF8, 0, wresult, -1,
-                                    result, sizeof(result), NULL, 0) > 0)
-                p = result;
-
-            OPENSSL_cleanse(wresult, sizeof(wresult));
-        }
-#  else
+        } else
+#  endif
         if (ReadConsoleA(GetStdHandle(STD_INPUT_HANDLE),
                          result, maxsize, &numread, NULL)) {
             if (numread >= 2 &&
@@ -332,7 +335,6 @@ static int read_string_inner(UI *ui, UI_STRING *uis, int echo, int strip_nl)
             result[numread] = '\0';
             p = result;
         }
-#  endif
     } else
 # elif defined(OPENSSL_SYS_MSDOS)
     if (!echo) {
-- 
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