source: trunk/src/peldr/pe.cpp@ 5280

Last change on this file since 5280 was 5133, checked in by sandervl, 25 years ago

compile fix
File size: 11.2 KB
Line 
1/* $Id: pe.cpp,v 1.26 2001-02-14 12:56:55 sandervl Exp $ */
2
3/*
4 * PELDR main exe loader code
5 *
6 * Copyright 1998-2000 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 * Command line options:
9 * /OPT:[x1=y,x2=z,..]
10 * x = CURDIR -> set current directory to y
11 * (not other options available at this time)
12 *
13 * Project Odin Software License can be found in LICENSE.TXT
14 *
15 */
16#define INCL_DOSFILEMGR /* File Manager values */
17#define INCL_DOSERRORS /* DOS Error values */
18#define INCL_DOSPROCESS /* DOS Process values */
19#define INCL_DOSMISC /* DOS Miscellanous values */
20#define INCL_DOSMODULEMGR
21#define INCL_WIN
22#include <os2.h>
23#include <bseord.h>
24#include <stdio.h>
25#include <string.h>
26#include <stdlib.h>
27#include <string.h>
28#include <assert.h>
29#include <win32type.h>
30#include <misc.h>
31#include <wprocess.h>
32#include <win\peexe.h>
33#include "pe.h"
34
35char INFO_BANNER[] = "Usage: PE winexe commandline";
36char szErrorTitle[] = "Odin";
37char szLoadErrorMsg[] = "Can't load executable";
38char szFileErrorMsg[] = "File IO error";
39char szPEErrorMsg[] = "Not a valid win32 exe. (perhaps 16 bits windows)";
40char szCPUErrorMsg[] = "Executable doesn't run on x86 machines";
41char szExeErrorMsg[] = "File isn't an executable";
42char szInteralErrorMsg[]= "Internal Error";
43char szNoKernel32Msg[] = "Can't load/find kernel32.dll (rc=%d)";
44char szDosInfoBlocks[] = "DosInfoBlocks failed!";
45
46char fullpath[CCHMAXPATH];
47
48typedef HAB (* APIENTRY WININITIALIZEPROC)(ULONG flOptions);
49typedef BOOL (* APIENTRY WINTERMINATEPROC)(HAB hab);
50typedef HMQ (* APIENTRY WINCREATEMSGQUEUEPROC) (HAB hab, LONG cmsg);
51typedef BOOL (* APIENTRY WINDESTROYMSGQUEUEPROC) (HMQ hmq);
52typedef ULONG (* APIENTRY WINMESSAGEBOXPROC) (HWND hwndParent,
53 HWND hwndOwner,
54 PCSZ pszText,
55 PCSZ pszCaption,
56 ULONG idWindow,
57 ULONG flStyle);
58typedef void (* KRNL32EXCEPTPROC) (void *exceptframe);
59
60WININITIALIZEPROC MyWinInitialize = 0;
61WINTERMINATEPROC MyWinTerminate = 0;
62WINCREATEMSGQUEUEPROC MyWinCreateMsgQueue = 0;
63WINDESTROYMSGQUEUEPROC MyWinDestroyMsgQueue = 0;
64WINMESSAGEBOXPROC MyWinMessageBox = 0;
65KRNL32EXCEPTPROC Krnl32SetExceptionHandler = 0;
66KRNL32EXCEPTPROC Krnl32UnsetExceptionHandler = 0;
67
68//should be the same as in ..\kernel32\winexepeldr.h
69typedef BOOL (* WIN32API WIN32CTOR)(char *, char *, char *, ULONG, BOOL, BOOL);
70
71WIN32CTOR CreateWin32Exe = 0;
72ULONG reservedMemory = 0;
73BOOL fConsoleApp = FALSE;
74
75void AllocateExeMem(char *filename);
76
77//******************************************************************************
78//******************************************************************************
79int main(int argc, char *argv[])
80{
81 HAB hab = 0; /* PM anchor block handle */
82 HMQ hmq = 0; /* Message queue handle */
83 char exeName[CCHMAXPATH];
84 char fullpath[CCHMAXPATH];
85 APIRET rc;
86 HMODULE hmodPMWin = 0, hmodKernel32 = 0;
87 PTIB ptib;
88 PPIB ppib;
89 char *cmdline, *win32cmdline, *peoptions, *newcmdline;
90 BOOL fQuote = FALSE, fVioConsole;
91 int nrTries = 1;
92
93 if(argc >= 2) {
94 if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
95tryagain:
96 cmdline = ppib->pib_pchcmd;
97 cmdline += strlen(cmdline)+1; //skip pe.exe
98 peoptions = strstr(cmdline, "/OPT:[");
99 if(peoptions) {
100 newcmdline = strchr(peoptions, ']');
101 if(newcmdline) {
102 cmdline = newcmdline+1;
103 }
104#ifdef DEBUG
105 else _interrupt(3); //should not happen!
106#endif
107 }
108 while(*cmdline == ' ') cmdline++; //skip leading space
109 if(*cmdline == '"') {
110 cmdline++;
111 fQuote = TRUE;
112 }
113 win32cmdline = cmdline;
114
115 strncpy(exeName, cmdline, sizeof(exeName)-1);
116 exeName[sizeof(exeName)-1] = 0;
117 char *p = exeName;
118 if(fQuote) {
119 while(*p != '"' && *p != 0) p++;
120 }
121 else {
122 for(int i=0;i<nrTries;i++) {
123 while(*p != ' ' && *p != 0) p++;
124 if(*p == 0) break;
125 if(i != nrTries-1) {
126 while(*p == ' ' && *p != 0) p++;
127 }
128 }
129 }
130 *p = 0;
131 strupr(exeName);
132 cmdline = strstr(exeName, ".EXE");
133 if(cmdline) {
134 cmdline[4] = 0;
135 win32cmdline += ((ULONG)cmdline - (ULONG)exeName) + 4;
136 }
137 else {
138 win32cmdline += strlen(exeName);
139 if(strstr(exeName, ".") == NULL) {
140 strcat(exeName, ".EXE");
141 }
142 }
143 if(fQuote) win32cmdline++;
144 while(*win32cmdline == ' ') win32cmdline++; //skip spaces
145
146 cmdline = exeName + strlen(exeName) - 1;
147 while(*cmdline == ' ') cmdline--;
148 cmdline[1] = 0;
149 if(DosQueryPathInfo(exeName, FIL_QUERYFULLNAME, (PVOID)fullpath, sizeof(fullpath)) == 0) {
150 strcpy(exeName, fullpath);
151 }
152 FILESTATUS3 fstat3;
153 if(DosQueryPathInfo(exeName, FIL_STANDARD, (PVOID)&fstat3, sizeof(fstat3)))
154 {
155 nrTries++;
156 if(*win32cmdline != NULL && !fQuote) {
157 goto tryagain;
158 }
159 }
160 }
161 else {//should never happen!
162filenotfound:
163 rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN.DLL", &hmodPMWin);
164 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
165 MyWinMessageBox(HWND_DESKTOP, NULL, szDosInfoBlocks, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
166 goto fail;
167 }
168 AllocateExeMem(exeName);
169 }
170
171#ifdef COMMAND_LINE_VERSION
172 if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
173 //switch process type to PM so the command line app can create PM
174 //windows
175 ppib->pib_ultype = 3;
176 }
177#endif
178
179 rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN.DLL", &hmodPMWin);
180 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32INITIALIZE, NULL, (PFN *)&MyWinInitialize);
181 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32TERMINATE, NULL, (PFN *)&MyWinTerminate);
182 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32CREATEMSGQUEUE, NULL, (PFN *)&MyWinCreateMsgQueue);
183 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32DESTROYMSGQUEUE, NULL, (PFN *)&MyWinDestroyMsgQueue);
184 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
185
186 if ((hab = MyWinInitialize(0)) == 0L) /* Initialize PM */
187 goto fail;
188
189 hmq = MyWinCreateMsgQueue(hab, 0);
190
191 if(argc < 2) {
192 MyWinMessageBox(HWND_DESKTOP, NULL, INFO_BANNER, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
193 goto fail;
194 }
195
196 rc = DosLoadModule(exeName, sizeof(exeName), "KERNEL32.DLL", &hmodKernel32);
197 if(rc) {
198 sprintf(exeName, szNoKernel32Msg, rc);
199 MyWinMessageBox(HWND_DESKTOP, NULL, exeName, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
200 goto fail;
201 }
202 rc = DosQueryProcAddr(hmodKernel32, 0, "_CreateWin32PeLdrExe@24", (PFN *)&CreateWin32Exe);
203
204#ifdef COMMAND_LINE_VERSION
205 fVioConsole = TRUE;
206#else
207 fVioConsole = FALSE;
208#endif
209 if(CreateWin32Exe(exeName, win32cmdline, peoptions, reservedMemory, fConsoleApp, fVioConsole) == FALSE) {
210 goto fail;
211 }
212
213 if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
214 MyWinTerminate( hab ); /* Terminate the application */
215
216 DosFreeModule(hmodPMWin);
217 DosFreeModule(hmodKernel32);
218 return 0;
219
220fail:
221 if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
222 if(hab) MyWinTerminate( hab ); /* Terminate the application */
223
224 if(hmodPMWin) DosFreeModule(hmodPMWin);
225 if(hmodKernel32) DosFreeModule(hmodKernel32);
226 return(1);
227}
228//******************************************************************************
229//SvL: Reserve memory for win32 exes without fixups
230// This is done before any Odin or PMWIN dll is loaded, so we'll get
231// a very low virtual address. (which is exactly what we want)
232//******************************************************************************
233void AllocateExeMem(char *filename)
234{
235 HFILE dllfile = 0;
236 char szFileName[CCHMAXPATH], *tmp;
237 char szResult[CCHMAXPATH];
238 ULONG action, ulRead, signature;
239 APIRET rc;
240 IMAGE_DOS_HEADER doshdr;
241 IMAGE_OPTIONAL_HEADER oh;
242 IMAGE_FILE_HEADER fh;
243 ULONG address = 0;
244 ULONG *memallocs;
245 ULONG alloccnt = 0;
246 ULONG diff, i, baseAddress;
247 ULONG ulSysinfo, flAllocMem = 0;
248
249 strcpy(szFileName, filename);
250
251 rc = DosOpen(szFileName, &dllfile, &action, 0, FILE_READONLY, OPEN_ACTION_OPEN_IF_EXISTS|OPEN_ACTION_FAIL_IF_NEW, OPEN_SHARE_DENYNONE|OPEN_ACCESS_READONLY, NULL);
252 if(rc != 0) {
253 if(!strstr(szFileName, ".EXE")) {
254 strcat(szFileName,".EXE");
255 }
256 }
257 else DosClose(dllfile);
258
259 rc = DosOpen(szFileName, &dllfile, &action, 0, FILE_READONLY, OPEN_ACTION_OPEN_IF_EXISTS|OPEN_ACTION_FAIL_IF_NEW, OPEN_SHARE_DENYNONE|OPEN_ACCESS_READONLY, NULL);
260 if(rc) {
261 if(DosSearchPath(SEARCH_IGNORENETERRS|SEARCH_ENVIRONMENT, "PATH",
262 szFileName, szResult, sizeof(szResult)) != 0) {
263 goto end; //oops
264 }
265 rc = DosOpen(szResult, &dllfile, &action, 0, FILE_READONLY, OPEN_ACTION_OPEN_IF_EXISTS|OPEN_ACTION_FAIL_IF_NEW, OPEN_SHARE_DENYNONE|OPEN_ACCESS_READONLY, NULL);
266 if(rc) {
267 goto end; //oops
268 }
269 }
270
271 //read dos header
272 if(DosRead(dllfile, (LPVOID)&doshdr, sizeof(doshdr), &ulRead)) {
273 goto end;
274 }
275 if(DosSetFilePtr(dllfile, doshdr.e_lfanew, FILE_BEGIN, &ulRead)) {
276 goto end;
277 }
278 //read signature dword
279 if(DosRead(dllfile, (LPVOID)&signature, sizeof(signature), &ulRead)) {
280 goto end;
281 }
282 //read pe header
283 if(DosRead(dllfile, (LPVOID)&fh, sizeof(fh), &ulRead)) {
284 goto end;
285 }
286 //read optional header
287 if(DosRead(dllfile, (LPVOID)&oh, sizeof(oh), &ulRead)) {
288 goto end;
289 }
290 if(doshdr.e_magic != IMAGE_DOS_SIGNATURE || signature != IMAGE_NT_SIGNATURE) {
291 goto end;
292 }
293 fConsoleApp = (oh.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
294
295 // check for high memory support
296 rc = DosQuerySysInfo(QSV_VIRTUALADDRESSLIMIT, QSV_VIRTUALADDRESSLIMIT, &ulSysinfo, sizeof(ulSysinfo));
297 if (rc == 0 && ulSysinfo > 512) //VirtualAddresslimit is in MB
298 {
299 flAllocMem = PAG_ANY; // high memory support. Let's use it!
300 }
301
302 //Reserve enough space to store 4096 pointers to 1MB memory chunks
303 memallocs = (ULONG *)alloca(4096*sizeof(ULONG *));
304 if(memallocs == NULL) {
305 goto end; //oops
306 }
307
308 if(oh.ImageBase < 512*1024*1024) {
309 flAllocMem = 0;
310 }
311 else {
312 if(flAllocMem == 0) {
313 goto end; //no support for > 512 MB
314 }
315 }
316 while(TRUE) {
317 rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | flAllocMem);
318 if(rc) break;
319
320 if(address + FALLOC_SIZE >= oh.ImageBase) {
321 if(address > oh.ImageBase) {//we've passed it!
322 DosFreeMem((PVOID)address);
323 break;
324 }
325 //found the right address
326 DosFreeMem((PVOID)address);
327
328 diff = oh.ImageBase - address;
329 if(diff) {
330 rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | flAllocMem);
331 if(rc) break;
332 }
333 rc = DosAllocMem((PPVOID)&baseAddress, oh.SizeOfImage, PAG_READ | PAG_WRITE | flAllocMem);
334 if(rc) break;
335
336 if(diff) DosFreeMem((PVOID)address);
337
338 reservedMemory = baseAddress;
339 break;
340 }
341 memallocs[alloccnt++] = address;
342 }
343 for(i=0;i<alloccnt;i++) {
344 DosFreeMem((PVOID)memallocs[i]);
345 }
346end:
347 if(dllfile) DosClose(dllfile);
348 return;
349}
350//******************************************************************************
351//******************************************************************************
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