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348 lines
11 KiB
C
348 lines
11 KiB
C
/*
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* Modules
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*
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* Copyright 1995 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <fcntl.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "winerror.h"
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#include "windef.h"
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#include "winbase.h"
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#include "winternl.h"
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#include "kernel_private.h"
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#include "psapi.h"
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#include "wine/list.h"
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#include "wine/asm.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(module);
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/****************************************************************************
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* GetDllDirectoryA (KERNEL32.@)
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*/
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DWORD WINAPI GetDllDirectoryA( DWORD buf_len, LPSTR buffer )
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{
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UNICODE_STRING str;
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NTSTATUS status;
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WCHAR data[MAX_PATH];
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DWORD len;
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str.Buffer = data;
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str.MaximumLength = sizeof(data);
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for (;;)
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{
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status = LdrGetDllDirectory( &str );
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if (status != STATUS_BUFFER_TOO_SMALL) break;
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if (str.Buffer != data) HeapFree( GetProcessHeap(), 0, str.Buffer );
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str.MaximumLength = str.Length;
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if (!(str.Buffer = HeapAlloc( GetProcessHeap(), 0, str.MaximumLength )))
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{
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status = STATUS_NO_MEMORY;
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break;
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}
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}
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if (!set_ntstatus( status )) return 0;
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len = FILE_name_WtoA( str.Buffer, str.Length / sizeof(WCHAR), NULL, 0 );
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if (buffer && buf_len > len)
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{
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FILE_name_WtoA( str.Buffer, -1, buffer, buf_len );
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}
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else
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{
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len++; /* for terminating null */
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if (buffer) *buffer = 0;
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}
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if (str.Buffer != data) HeapFree( GetProcessHeap(), 0, str.Buffer );
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return len;
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}
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/****************************************************************************
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* GetDllDirectoryW (KERNEL32.@)
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*/
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DWORD WINAPI GetDllDirectoryW( DWORD buf_len, LPWSTR buffer )
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{
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UNICODE_STRING str;
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NTSTATUS status;
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str.Buffer = buffer;
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str.MaximumLength = min( buf_len, UNICODE_STRING_MAX_CHARS ) * sizeof(WCHAR);
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status = LdrGetDllDirectory( &str );
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if (status == STATUS_BUFFER_TOO_SMALL) status = STATUS_SUCCESS;
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if (!set_ntstatus( status )) return 0;
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return str.Length / sizeof(WCHAR);
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}
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/****************************************************************************
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* SetDllDirectoryA (KERNEL32.@)
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*/
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BOOL WINAPI SetDllDirectoryA( LPCSTR dir )
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{
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WCHAR *dirW = NULL;
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BOOL ret;
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if (dir && !(dirW = FILE_name_AtoW( dir, TRUE ))) return FALSE;
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ret = SetDllDirectoryW( dirW );
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HeapFree( GetProcessHeap(), 0, dirW );
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return ret;
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}
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/****************************************************************************
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* SetDllDirectoryW (KERNEL32.@)
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*/
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BOOL WINAPI SetDllDirectoryW( LPCWSTR dir )
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{
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UNICODE_STRING str;
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RtlInitUnicodeString( &str, dir );
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return set_ntstatus( LdrSetDllDirectory( &str ));
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}
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/***********************************************************************
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* GetBinaryTypeW [KERNEL32.@]
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*
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* Determine whether a file is executable, and if so, what kind.
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*
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* PARAMS
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* lpApplicationName [I] Path of the file to check
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* lpBinaryType [O] Destination for the binary type
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*
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* RETURNS
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* TRUE, if the file is an executable, in which case lpBinaryType is set.
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* FALSE, if the file is not an executable or if the function fails.
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*
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* NOTES
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* The type of executable is a property that determines which subsystem an
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* executable file runs under. lpBinaryType can be set to one of the following
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* values:
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* SCS_32BIT_BINARY: A Win32 based application
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* SCS_64BIT_BINARY: A Win64 based application
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* SCS_DOS_BINARY: An MS-Dos based application
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* SCS_WOW_BINARY: A Win16 based application
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* SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app
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* SCS_POSIX_BINARY: A POSIX based application ( Not implemented )
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* SCS_OS216_BINARY: A 16bit OS/2 based application
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*
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* To find the binary type, this function reads in the files header information.
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* If extended header information is not present it will assume that the file
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* is a DOS executable. If extended header information is present it will
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* determine if the file is a 16, 32 or 64 bit Windows executable by checking the
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* flags in the header.
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*
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* ".com" and ".pif" files are only recognized by their file name extension,
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* as per native Windows.
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*/
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BOOL WINAPI GetBinaryTypeW( LPCWSTR name, LPDWORD type )
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{
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HANDLE hfile, mapping;
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NTSTATUS status;
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const WCHAR *ptr;
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TRACE("%s\n", debugstr_w(name) );
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if (type == NULL) return FALSE;
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hfile = CreateFileW( name, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
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if ( hfile == INVALID_HANDLE_VALUE )
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return FALSE;
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status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY,
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NULL, NULL, PAGE_READONLY, SEC_IMAGE, hfile );
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CloseHandle( hfile );
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switch (status)
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{
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case STATUS_SUCCESS:
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{
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SECTION_IMAGE_INFORMATION info;
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status = NtQuerySection( mapping, SectionImageInformation, &info, sizeof(info), NULL );
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CloseHandle( mapping );
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if (status) return FALSE;
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if (info.ImageCharacteristics & IMAGE_FILE_DLL) return FALSE;
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switch (info.Machine)
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{
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case IMAGE_FILE_MACHINE_I386:
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case IMAGE_FILE_MACHINE_ARMNT:
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*type = SCS_32BIT_BINARY;
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return TRUE;
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case IMAGE_FILE_MACHINE_AMD64:
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case IMAGE_FILE_MACHINE_ARM64:
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*type = SCS_64BIT_BINARY;
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return TRUE;
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}
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return FALSE;
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}
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case STATUS_INVALID_IMAGE_WIN_16:
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*type = SCS_WOW_BINARY;
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return TRUE;
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case STATUS_INVALID_IMAGE_WIN_32:
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*type = SCS_32BIT_BINARY;
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return TRUE;
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case STATUS_INVALID_IMAGE_WIN_64:
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*type = SCS_64BIT_BINARY;
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return TRUE;
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case STATUS_INVALID_IMAGE_NE_FORMAT:
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*type = SCS_OS216_BINARY;
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return TRUE;
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case STATUS_INVALID_IMAGE_PROTECT:
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*type = SCS_DOS_BINARY;
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return TRUE;
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case STATUS_INVALID_IMAGE_NOT_MZ:
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if ((ptr = wcsrchr( name, '.' )))
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{
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if (!wcsicmp( ptr, L".com" ))
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{
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*type = SCS_DOS_BINARY;
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return TRUE;
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}
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if (!wcsicmp( ptr, L".pif" ))
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{
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*type = SCS_PIF_BINARY;
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return TRUE;
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}
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}
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return FALSE;
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default:
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return FALSE;
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}
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}
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/***********************************************************************
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* GetBinaryTypeA [KERNEL32.@]
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* GetBinaryType [KERNEL32.@]
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*
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* See GetBinaryTypeW.
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*/
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BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType )
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{
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ANSI_STRING app_nameA;
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TRACE("%s\n", debugstr_a(lpApplicationName));
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/* Sanity check.
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*/
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if ( lpApplicationName == NULL || lpBinaryType == NULL )
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return FALSE;
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RtlInitAnsiString(&app_nameA, lpApplicationName);
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if (!set_ntstatus( RtlAnsiStringToUnicodeString( &NtCurrentTeb()->StaticUnicodeString,
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&app_nameA, FALSE )))
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return FALSE;
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return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString.Buffer, lpBinaryType);
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}
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/***********************************************************************
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* GetProcAddress (KERNEL32.@)
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*
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* Find the address of an exported symbol in a loaded dll.
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*
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* PARAMS
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* hModule [I] Handle to the dll returned by LoadLibraryA().
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* function [I] Name of the symbol, or an integer ordinal number < 16384
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*
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* RETURNS
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* Success: A pointer to the symbol in the process address space.
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* Failure: NULL. Use GetLastError() to determine the cause.
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*/
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FARPROC get_proc_address( HMODULE hModule, LPCSTR function )
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{
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FARPROC fp;
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if (!hModule) hModule = NtCurrentTeb()->Peb->ImageBaseAddress;
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if ((ULONG_PTR)function >> 16)
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{
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ANSI_STRING str;
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RtlInitAnsiString( &str, function );
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if (!set_ntstatus( LdrGetProcedureAddress( hModule, &str, 0, (void**)&fp ))) return NULL;
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}
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else
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if (!set_ntstatus( LdrGetProcedureAddress( hModule, NULL, LOWORD(function), (void**)&fp )))
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return NULL;
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return fp;
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}
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#ifdef __x86_64__
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/*
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* Work around a Delphi bug on x86_64. When delay loading a symbol,
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* Delphi saves rcx, rdx, r8 and r9 to the stack. It then calls
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* GetProcAddress(), pops the saved registers and calls the function.
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* This works fine if all of the parameters are ints. However, since
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* it does not save xmm0 - 3, it relies on GetProcAddress() preserving
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* these registers if the function takes floating point parameters.
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* This wrapper saves xmm0 - 3 to the stack.
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*/
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extern FARPROC get_proc_address_wrapper( HMODULE module, LPCSTR function );
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__ASM_GLOBAL_FUNC( get_proc_address_wrapper,
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"pushq %rbp\n\t"
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__ASM_SEH(".seh_pushreg %rbp\n\t")
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__ASM_CFI(".cfi_adjust_cfa_offset 8\n\t")
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__ASM_CFI(".cfi_rel_offset %rbp,0\n\t")
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"movq %rsp,%rbp\n\t"
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__ASM_SEH(".seh_setframe %rbp,0\n\t")
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__ASM_CFI(".cfi_def_cfa_register %rbp\n\t")
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__ASM_SEH(".seh_endprologue\n\t")
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"subq $0x60,%rsp\n\t"
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"andq $~15,%rsp\n\t"
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"movaps %xmm0,0x20(%rsp)\n\t"
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"movaps %xmm1,0x30(%rsp)\n\t"
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"movaps %xmm2,0x40(%rsp)\n\t"
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"movaps %xmm3,0x50(%rsp)\n\t"
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"call " __ASM_NAME("get_proc_address") "\n\t"
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"movaps 0x50(%rsp), %xmm3\n\t"
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"movaps 0x40(%rsp), %xmm2\n\t"
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"movaps 0x30(%rsp), %xmm1\n\t"
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"movaps 0x20(%rsp), %xmm0\n\t"
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"leaq 0(%rbp),%rsp\n\t"
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__ASM_CFI(".cfi_def_cfa_register %rsp\n\t")
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"popq %rbp\n\t"
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__ASM_CFI(".cfi_adjust_cfa_offset -8\n\t")
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__ASM_CFI(".cfi_same_value %rbp\n\t")
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"ret" )
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#else /* __x86_64__ */
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static inline FARPROC get_proc_address_wrapper( HMODULE module, LPCSTR function )
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{
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return get_proc_address( module, function );
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}
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#endif /* __x86_64__ */
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FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function )
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{
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return get_proc_address_wrapper( hModule, function );
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}
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