Alistair Leslie-Hughes : winmm: Use CreateFileA instead of OpenFile.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5ee2ef52175c8bf506c4eb9a67bde4cb72a93853
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=5ee2ef52175c8bf506c4eb9a6...

Author: Alistair Leslie-Hughes 
Date:   Mon Apr  6 13:23:49 2020 -0500

winmm: Use CreateFileA instead of OpenFile.

OpenFile has a filepath limit of 128. Use CreateFile which doesn't have
this limit.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48832
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=27324
Signed-off-by: Alistair Leslie-Hughes 
Signed-off-by: Andrew Eikum 
Signed-off-by: Alexandre Julliard

---

dlls/winmm/mmio.c | 45 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 42 insertions(+), 3 deletions(-)

diff --git a/dlls/winmm/mmio.c b/dlls/winmm/mmio.c
index 6f14301975..48bbd3ed48 100644
--- a/dlls/winmm/mmio.c
+++ b/dlls/winmm/mmio.c
@@ -48,6 +48,40 @@ WINE_DEFAULT_DEBUG_CHANNEL(mmio);

static WINE_MMIO *MMIOList;

+/* From kernel32 */
+static HANDLE create_file_OF( LPCSTR path, INT mode )
+{
+    DWORD access, sharing, creation;
+
+    if (mode & OF_CREATE)
+    {
+        creation = CREATE_ALWAYS;
+        access = GENERIC_READ | GENERIC_WRITE;
+    }
+    else
+    {
+        creation = OPEN_EXISTING;
+        switch(mode & 0x03)
+        {
+        case OF_READ:      access = GENERIC_READ; break;
+        case OF_WRITE:     access = GENERIC_WRITE; break;
+        case OF_READWRITE: access = GENERIC_READ | GENERIC_WRITE; break;
+        default:           access = 0; break;
+        }
+    }
+
+    switch(mode & 0x70)
+    {
+    case OF_SHARE_EXCLUSIVE:  sharing = 0; break;
+    case OF_SHARE_DENY_WRITE: sharing = FILE_SHARE_READ; break;
+    case OF_SHARE_DENY_READ:  sharing = FILE_SHARE_WRITE; break;
+    case OF_SHARE_DENY_NONE:
+    case OF_SHARE_COMPAT:
+    default:                  sharing = FILE_SHARE_READ | FILE_SHARE_WRITE; break;
+    }
+    return CreateFileA( path, access, sharing, NULL, creation, FILE_ATTRIBUTE_NORMAL, 0 );
+}
+
 /**************************************************************************
  *               	mmioDosIOProc           		[internal]
  */
@@ -76,9 +110,14 @@ static LRESULT CALLBACK mmioDosIOProc(LPMMIOINFO lpmmioinfo, UINT uMessage,

/* if filename NULL, assume open file handle in adwInfo[0] */
        if (szFileName) {
-                OFSTRUCT    ofs;
-                lpmmioinfo->adwInfo[0] = OpenFile(szFileName, &ofs, lpmmioinfo->dwFlags & 0xFFFF);
-            }
+		HANDLE file;
+
+		file = create_file_OF( szFileName, lpmmioinfo->dwFlags );
+		if (file != INVALID_HANDLE_VALUE)
+		    lpmmioinfo->adwInfo[0] = HandleToLong(file);
+		else
+		    lpmmioinfo->adwInfo[0] = HFILE_ERROR;
+	    }
        if (lpmmioinfo->adwInfo[0] == HFILE_ERROR)
    	ret = MMIOERR_FILENOTFOUND;
    }