From 410db2ada4dce2989ba600c2857714c51378a651 Mon Sep 17 00:00:00 2001
From: Alexandre Julliard <julliard@winehq.org>
Date: Mon, 14 Jun 2004 19:40:44 +0000
Subject: [PATCH] Rewrote SetFilePointer to use SetFilePointerEx.

---
 dlls/kernel/file.c | 46 ++++++++++------------------------------------
 include/winbase.h  |  1 +
 2 files changed, 11 insertions(+), 36 deletions(-)

diff --git a/dlls/kernel/file.c b/dlls/kernel/file.c
index ab71dc0a19..75659b257c 100644
--- a/dlls/kernel/file.c
+++ b/dlls/kernel/file.c
@@ -815,48 +815,22 @@ BOOL WINAPI SetEndOfFile( HANDLE hFile )
 /***********************************************************************
  *           SetFilePointer   (KERNEL32.@)
  */
-DWORD WINAPI SetFilePointer( HANDLE hFile, LONG distance, LONG *highword,
-                             DWORD method )
+DWORD WINAPI SetFilePointer( HANDLE hFile, LONG distance, LONG *highword, DWORD method )
 {
-    static const int whence[3] = { SEEK_SET, SEEK_CUR, SEEK_END };
-    DWORD ret = INVALID_SET_FILE_POINTER;
-    NTSTATUS status;
-    int fd;
+    LARGE_INTEGER dist, newpos;
 
-    TRACE("handle %p offset %ld high %ld origin %ld\n",
-          hFile, distance, highword?*highword:0, method );
-
-    if (method > FILE_END)
+    if (highword)
     {
-        SetLastError( ERROR_INVALID_PARAMETER );
-        return ret;
+        dist.u.LowPart  = distance;
+        dist.u.HighPart = *highword;
     }
+    else dist.QuadPart = distance;
 
-    if (!(status = wine_server_handle_to_fd( hFile, 0, &fd, NULL, NULL )))
-    {
-        off_t pos, res;
+    if (!SetFilePointerEx( hFile, dist, &newpos, method )) return INVALID_SET_FILE_POINTER;
 
-        if (highword) pos = ((off_t)*highword << 32) | (ULONG)distance;
-        else pos = (off_t)distance;
-        if ((res = lseek( fd, pos, whence[method] )) == (off_t)-1)
-        {
-            /* also check EPERM due to SuSE7 2.2.16 lseek() EPERM kernel bug */
-            if (((errno == EINVAL) || (errno == EPERM)) && (method != FILE_BEGIN) && (pos < 0))
-                SetLastError( ERROR_NEGATIVE_SEEK );
-            else
-                FILE_SetDosError();
-        }
-        else
-        {
-            ret = (DWORD)res;
-            if (highword) *highword = (res >> 32);
-            if (ret == INVALID_SET_FILE_POINTER) SetLastError( 0 );
-        }
-        wine_server_release_fd( hFile, fd );
-    }
-    else SetLastError( RtlNtStatusToDosError(status) );
-
-    return ret;
+    if (highword) *highword = newpos.u.HighPart;
+    if (newpos.u.LowPart == INVALID_SET_FILE_POINTER) SetLastError( 0 );
+    return newpos.u.LowPart;
 }
 
 
diff --git a/include/winbase.h b/include/winbase.h
index 5b4738d953..09c47f55ce 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -1621,6 +1621,7 @@ BOOL        WINAPI SetEvent(HANDLE);
 VOID        WINAPI SetFileApisToANSI(void);
 VOID        WINAPI SetFileApisToOEM(void);
 DWORD       WINAPI SetFilePointer(HANDLE,LONG,LPLONG,DWORD);
+BOOL        WINAPI SetFilePointerEx(HANDLE,LARGE_INTEGER,LARGE_INTEGER*,DWORD);
 BOOL        WINAPI SetFileSecurityA(LPCSTR,SECURITY_INFORMATION,PSECURITY_DESCRIPTOR);
 BOOL        WINAPI SetFileSecurityW(LPCWSTR,SECURITY_INFORMATION,PSECURITY_DESCRIPTOR);
 #define     SetFileSecurity WINELIB_NAME_AW(SetFileSecurity)