188 строки
6.0 KiB
C
188 строки
6.0 KiB
C
/* Utilities - Win32 utilities (Windows NT and Windows '95)
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Copyright (C) 1994, 1995, 1996 the Free Software Foundation.
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Written 1996 by Juan Grigera<grigera@isis.unlp.edu.ar>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include <windows.h>
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#include "util_win32.h"
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#include "trace_nt.h"
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/* int win32_GetPlatform ()
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Checks in which OS Midnight Commander is running.
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Returns:
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OS_WinNT - Windows NT 3.x
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OS_Win95 - Windows 4.x
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Note: GetVersionEx (Win32API) is called only once.
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*/
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int win32_GetPlatform ()
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{
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static int platform = 0;
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return (platform ? platform : (platform = win32_GetVersionEx()) );
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}
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/* int win32_GetVersionEx ()
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intended for use by win32_GetPlatform only
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*/
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int win32_GetVersionEx ()
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{
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OSVERSIONINFO ovi;
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ovi.dwOSVersionInfoSize = sizeof(ovi);
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win32APICALL( GetVersionEx(&ovi) );
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return ovi.dwPlatformId;
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}
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/* int win32_GetEXEType (const char* filename)
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Determines whether filename (an Executable) is
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a Console application (CUI) or a Graphical application(GUI).
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filename - Name of executable file to check
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Returns: EXE_win16 - Windows 3.x archive or OS/2
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EXE_win32CUI - NT or Chicago Console API, also OS/2
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EXE_win32GUI - NT or Chicago GUI API
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EXE_otherCUI - DOS COM, MZ, ZM, Phar Lap
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EXE_Unknown - Unknown
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EXE_Error - Couldn't read file/EXE image
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TODO: better management of OS/2 images
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EXE_CompressedArchive can be easily implemented
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Notes: This function parses the executable header (the only ugly way
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to do it). If header is not found or not understood,
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0 is returned.
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Information on NE, LE, LX and MZ taken from Ralf Brown's interrupt
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list, under INT 21-function 4B ("EXEC" - LOAD AND/OR EXECUTE PROGRAM),
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Tables 0806 - 836.
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Parsing of PE header (Win32 signature, "Portable Executable")
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taken from MSKBase article Number: Q90493.
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*/
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/* ---- Executable Signatures ---- */
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/* Alternative DOS signagure */
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#define IMAGE_DOS_SIGNATURE_ALTERNATIVE 0x4D5A /* ZM */
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/* Phar Lap .EXP files */
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#define IMAGE_OLDPHARLAP_SIGNATURE 0x504D /* MP */
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#define IMAGE_NEWPHARLAP_286_SIGNATURE 0x3250 /* P2 */
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#define IMAGE_NEWPHARLAP_386_SIGNATURE 0x3350 /* P3 */
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/* New Executables */
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#define IMAGE_LX_SIGNATURE 0x584C /* LX */
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#define IMAGE_PE_SIGNATURE 0x4550 /* PE */
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int win32_GetEXEType (const char* a_szFileName)
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{
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/* FIXME: MinGW cannot compile this code */
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#ifndef __MINGW32__
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HANDLE hImage;
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DWORD dwDumm;
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DWORD SectionOffset;
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DWORD CoffHeaderOffset;
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WORD wSignature;
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/* DWORD MoreDosHeader[16]; */
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IMAGE_DOS_HEADER image_dos_header;
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IMAGE_FILE_HEADER image_file_header;
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IMAGE_OPTIONAL_HEADER image_optional_header;
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/* IMAGE_SECTION_HEADER image_section_header; */
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/* Open the EXE file - Use Native API for SHARE compatibility */
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hImage = CreateFile(a_szFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
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if (hImage == INVALID_HANDLE_VALUE) {
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win32Trace (("win32_GetEXEType: Could not open file %s. API Error %d.", a_szFileName, GetLastError()));
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return EXE_Error;
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}
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/* Read the MZ (DOS) image header. */
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win32APICALL( ReadFile (hImage, (LPVOID)&image_dos_header, sizeof(IMAGE_DOS_HEADER), &dwDumm, NULL) );
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switch (image_dos_header.e_magic) {
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case IMAGE_DOS_SIGNATURE: /* MZ or ZM */
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case IMAGE_DOS_SIGNATURE_ALTERNATIVE:
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break;
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case IMAGE_OLDPHARLAP_SIGNATURE: /* MP, P2, P3: Phar Lap executables */
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case IMAGE_NEWPHARLAP_286_SIGNATURE:
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case IMAGE_NEWPHARLAP_386_SIGNATURE:
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return EXE_otherCUI;
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default:
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return EXE_otherCUI; /* Probably .COM? */
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}
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/* Read more MS-DOS header. */
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/* win32APICALL( ReadFile (hImage, MoreDosHeader, sizeof(MoreDosHeader)); */
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/* Get new executable header */
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CoffHeaderOffset = SetFilePointer(hImage, image_dos_header.e_lfanew, NULL, FILE_BEGIN);
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/* + sizeof(ULONG); */
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win32APICALL( ReadFile (hImage, (LPVOID) &wSignature, sizeof(WORD), &dwDumm, NULL) );
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switch (wSignature) {
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case IMAGE_PE_SIGNATURE: /* PE - Portable Executable */
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break;
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case IMAGE_OS2_SIGNATURE: /* NE - New Executable OS/2 and Windows 3.x */
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case IMAGE_OS2_SIGNATURE_LE: /* LE - Linear Execuable (Windows 3.x) */
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case IMAGE_LX_SIGNATURE: /* LX - Linear Execuable (OS/2) */
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return EXE_win16;
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default:
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return EXE_Unknown; /* unknown New Executable or bad pointer */
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}
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/* Continue parsing PE (COFF-like) */
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SectionOffset = CoffHeaderOffset + IMAGE_SIZEOF_FILE_HEADER + IMAGE_SIZEOF_NT_OPTIONAL_HEADER;
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win32APICALL( ReadFile(hImage, (LPVOID) &image_file_header, IMAGE_SIZEOF_FILE_HEADER, &dwDumm, NULL) );
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/* Read optional header. */
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win32APICALL( ReadFile(hImage, (LPVOID) &image_optional_header, IMAGE_SIZEOF_NT_OPTIONAL_HEADER, &dwDumm, NULL) );
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switch (image_optional_header.Subsystem) {
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case IMAGE_SUBSYSTEM_WINDOWS_GUI:
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return EXE_win32GUI;
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case IMAGE_SUBSYSTEM_WINDOWS_CUI:
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case IMAGE_SUBSYSTEM_OS2_CUI:
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case IMAGE_SUBSYSTEM_POSIX_CUI:
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return EXE_win32CUI;
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case IMAGE_SUBSYSTEM_UNKNOWN:
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case IMAGE_SUBSYSTEM_NATIVE:
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return EXE_Unknown; /* FIXME: what is "NATIVE??" */
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default:
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win32Trace(("Unknown type %u.\n", image_optional_header.Subsystem));
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return EXE_Unknown;
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}
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#else
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return EXE_Unknown;
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#endif /* !__MINGW32__ */
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}
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