1 files changed, 51 insertions, 9 deletions

diff --git a/Cryptlib/OpenSSL/crypto/bio/bss_file.c b/Cryptlib/OpenSSL/crypto/bio/bss_file.c
index 81e5b940..153b6fa2 100644
--- a/Cryptlib/OpenSSL/crypto/bio/bss_file.c
+++ b/Cryptlib/OpenSSL/crypto/bio/bss_file.c
@@ -118,9 +118,53 @@ static BIO_METHOD methods_filep = {
 BIO *BIO_new_file(const char *filename, const char *mode)
 {
     BIO *ret;
-    FILE *file;
-
-    if ((file = fopen(filename, mode)) == NULL) {
+    FILE *file = NULL;
+
+#  if defined(_WIN32) && defined(CP_UTF8)
+    int sz, len_0 = (int)strlen(filename) + 1;
+    DWORD flags;
+
+    /*
+     * Basically there are three cases to cover: a) filename is
+     * pure ASCII string; b) actual UTF-8 encoded string and
+     * c) locale-ized string, i.e. one containing 8-bit
+     * characters that are meaningful in current system locale.
+     * If filename is pure ASCII or real UTF-8 encoded string,
+     * MultiByteToWideChar succeeds and _wfopen works. If
+     * filename is locale-ized string, chances are that
+     * MultiByteToWideChar fails reporting
+     * ERROR_NO_UNICODE_TRANSLATION, in which case we fall
+     * back to fopen...
+     */
+    if ((sz = MultiByteToWideChar(CP_UTF8, (flags = MB_ERR_INVALID_CHARS),
+                                  filename, len_0, NULL, 0)) > 0 ||
+        (GetLastError() == ERROR_INVALID_FLAGS &&
+         (sz = MultiByteToWideChar(CP_UTF8, (flags = 0),
+                                   filename, len_0, NULL, 0)) > 0)
+        ) {
+        WCHAR wmode[8];
+        WCHAR *wfilename = _alloca(sz * sizeof(WCHAR));
+
+        if (MultiByteToWideChar(CP_UTF8, flags,
+                                filename, len_0, wfilename, sz) &&
+            MultiByteToWideChar(CP_UTF8, 0, mode, strlen(mode) + 1,
+                                wmode, sizeof(wmode) / sizeof(wmode[0])) &&
+            (file = _wfopen(wfilename, wmode)) == NULL &&
+            (errno == ENOENT || errno == EBADF)
+            ) {
+            /*
+             * UTF-8 decode succeeded, but no file, filename
+             * could still have been locale-ized...
+             */
+            file = fopen(filename, mode);
+        }
+    } else if (GetLastError() == ERROR_NO_UNICODE_TRANSLATION) {
+        file = fopen(filename, mode);
+    }
+#  else
+    file = fopen(filename, mode);
+#  endif
+    if (file == NULL) {
         SYSerr(SYS_F_FOPEN, get_last_sys_error());
         ERR_add_error_data(5, "fopen('", filename, "','", mode, "')");
         if (errno == ENOENT)
@@ -129,7 +173,7 @@ BIO *BIO_new_file(const char *filename, const char *mode)
             BIOerr(BIO_F_BIO_NEW_FILE, ERR_R_SYS_LIB);
         return (NULL);
     }
-    if ((ret = BIO_new(BIO_s_file_internal())) == NULL) {
+    if ((ret = BIO_new(BIO_s_file())) == NULL) {
         fclose(file);
         return (NULL);
     }
@@ -284,9 +328,7 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
                 _setmode(fd, _O_BINARY);
 #  elif defined(OPENSSL_SYS_NETWARE) && defined(NETWARE_CLIB)
             int fd = fileno((FILE *)ptr);
-            /*
-             * Under CLib there are differences in file modes
-             */
+            /* Under CLib there are differences in file modes */
             if (num & BIO_FP_TEXT)
                 setmode(fd, O_TEXT);
             else
@@ -304,7 +346,7 @@ static long MS_CALLBACK file_ctrl(BIO *b, int cmd, long num, void *ptr)
                 } else
                     _setmode(fd, _O_BINARY);
             }
-#  elif defined(OPENSSL_SYS_OS2)
+#  elif defined(OPENSSL_SYS_OS2) || defined(OPENSSL_SYS_WIN32_CYGWIN)
             int fd = fileno((FILE *)ptr);
             if (num & BIO_FP_TEXT)
                 setmode(fd, O_TEXT);
@@ -418,7 +460,7 @@ static int MS_CALLBACK file_puts(BIO *bp, const char *str)
     return (ret);
 }
 
-#else
+# else
 
 BIO_METHOD *BIO_s_file(void)
 {