source: trunk/src/peldr/pe.cpp@ 5813

Last change on this file since 5813 was 5494, checked in by sandervl, 25 years ago

Print module name that contributed to the failure of loading kernel32.
File size: 11.3 KB
Line 
1/* $Id: pe.cpp,v 1.27 2001-04-10 17:09:08 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, module %s)";
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 char errorMod[CCHMAXPATH];
86 APIRET rc;
87 HMODULE hmodPMWin = 0, hmodKernel32 = 0;
88 PTIB ptib;
89 PPIB ppib;
90 char *cmdline, *win32cmdline, *peoptions, *newcmdline;
91 BOOL fQuote = FALSE, fVioConsole;
92 int nrTries = 1;
93
94 if(argc >= 2) {
95 if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
96tryagain:
97 cmdline = ppib->pib_pchcmd;
98 cmdline += strlen(cmdline)+1; //skip pe.exe
99 peoptions = strstr(cmdline, "/OPT:[");
100 if(peoptions) {
101 newcmdline = strchr(peoptions, ']');
102 if(newcmdline) {
103 cmdline = newcmdline+1;
104 }
105#ifdef DEBUG
106 else _interrupt(3); //should not happen!
107#endif
108 }
109 while(*cmdline == ' ') cmdline++; //skip leading space
110 if(*cmdline == '"') {
111 cmdline++;
112 fQuote = TRUE;
113 }
114 win32cmdline = cmdline;
115
116 strncpy(exeName, cmdline, sizeof(exeName)-1);
117 exeName[sizeof(exeName)-1] = 0;
118 char *p = exeName;
119 if(fQuote) {
120 while(*p != '"' && *p != 0) p++;
121 }
122 else {
123 for(int i=0;i<nrTries;i++) {
124 while(*p != ' ' && *p != 0) p++;
125 if(*p == 0) break;
126 if(i != nrTries-1) {
127 while(*p == ' ' && *p != 0) p++;
128 }
129 }
130 }
131 *p = 0;
132 strupr(exeName);
133 cmdline = strstr(exeName, ".EXE");
134 if(cmdline) {
135 cmdline[4] = 0;
136 win32cmdline += ((ULONG)cmdline - (ULONG)exeName) + 4;
137 }
138 else {
139 win32cmdline += strlen(exeName);
140 if(strstr(exeName, ".") == NULL) {
141 strcat(exeName, ".EXE");
142 }
143 }
144 if(fQuote) win32cmdline++;
145 while(*win32cmdline == ' ') win32cmdline++; //skip spaces
146
147 cmdline = exeName + strlen(exeName) - 1;
148 while(*cmdline == ' ') cmdline--;
149 cmdline[1] = 0;
150 if(DosQueryPathInfo(exeName, FIL_QUERYFULLNAME, (PVOID)fullpath, sizeof(fullpath)) == 0) {
151 strcpy(exeName, fullpath);
152 }
153 FILESTATUS3 fstat3;
154 if(DosQueryPathInfo(exeName, FIL_STANDARD, (PVOID)&fstat3, sizeof(fstat3)))
155 {
156 nrTries++;
157 if(*win32cmdline != NULL && !fQuote) {
158 goto tryagain;
159 }
160 }
161 }
162 else {//should never happen!
163filenotfound:
164 rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN.DLL", &hmodPMWin);
165 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
166 MyWinMessageBox(HWND_DESKTOP, NULL, szDosInfoBlocks, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
167 goto fail;
168 }
169 AllocateExeMem(exeName);
170 }
171
172#ifdef COMMAND_LINE_VERSION
173 if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
174 //switch process type to PM so the command line app can create PM
175 //windows
176 ppib->pib_ultype = 3;
177 }
178#endif
179
180 rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN.DLL", &hmodPMWin);
181 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32INITIALIZE, NULL, (PFN *)&MyWinInitialize);
182 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32TERMINATE, NULL, (PFN *)&MyWinTerminate);
183 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32CREATEMSGQUEUE, NULL, (PFN *)&MyWinCreateMsgQueue);
184 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32DESTROYMSGQUEUE, NULL, (PFN *)&MyWinDestroyMsgQueue);
185 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
186
187 if ((hab = MyWinInitialize(0)) == 0L) /* Initialize PM */
188 goto fail;
189
190 hmq = MyWinCreateMsgQueue(hab, 0);
191
192 if(argc < 2) {
193 MyWinMessageBox(HWND_DESKTOP, NULL, INFO_BANNER, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
194 goto fail;
195 }
196
197 errorMod[0] = 0;
198 rc = DosLoadModule(errorMod, sizeof(errorMod), "KERNEL32.DLL", &hmodKernel32);
199 if(rc) {
200 sprintf(fullpath, szNoKernel32Msg, rc, errorMod);
201 MyWinMessageBox(HWND_DESKTOP, NULL, fullpath, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
202 goto fail;
203 }
204 rc = DosQueryProcAddr(hmodKernel32, 0, "_CreateWin32PeLdrExe@24", (PFN *)&CreateWin32Exe);
205
206#ifdef COMMAND_LINE_VERSION
207 fVioConsole = TRUE;
208#else
209 fVioConsole = FALSE;
210#endif
211 if(CreateWin32Exe(exeName, win32cmdline, peoptions, reservedMemory, fConsoleApp, fVioConsole) == FALSE) {
212 goto fail;
213 }
214
215 if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
216 MyWinTerminate( hab ); /* Terminate the application */
217
218 DosFreeModule(hmodPMWin);
219 DosFreeModule(hmodKernel32);
220 return 0;
221
222fail:
223 if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
224 if(hab) MyWinTerminate( hab ); /* Terminate the application */
225
226 if(hmodPMWin) DosFreeModule(hmodPMWin);
227 if(hmodKernel32) DosFreeModule(hmodKernel32);
228 return(1);
229}
230//******************************************************************************
231//SvL: Reserve memory for win32 exes without fixups
232// This is done before any Odin or PMWIN dll is loaded, so we'll get
233// a very low virtual address. (which is exactly what we want)
234//******************************************************************************
235void AllocateExeMem(char *filename)
236{
237 HFILE dllfile = 0;
238 char szFileName[CCHMAXPATH], *tmp;
239 char szResult[CCHMAXPATH];
240 ULONG action, ulRead, signature;
241 APIRET rc;
242 IMAGE_DOS_HEADER doshdr;
243 IMAGE_OPTIONAL_HEADER oh;
244 IMAGE_FILE_HEADER fh;
245 ULONG address = 0;
246 ULONG *memallocs;
247 ULONG alloccnt = 0;
248 ULONG diff, i, baseAddress;
249 ULONG ulSysinfo, flAllocMem = 0;
250
251 strcpy(szFileName, filename);
252
253 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);
254 if(rc != 0) {
255 if(!strstr(szFileName, ".EXE")) {
256 strcat(szFileName,".EXE");
257 }
258 }
259 else DosClose(dllfile);
260
261 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);
262 if(rc) {
263 if(DosSearchPath(SEARCH_IGNORENETERRS|SEARCH_ENVIRONMENT, "PATH",
264 szFileName, szResult, sizeof(szResult)) != 0) {
265 goto end; //oops
266 }
267 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);
268 if(rc) {
269 goto end; //oops
270 }
271 }
272
273 //read dos header
274 if(DosRead(dllfile, (LPVOID)&doshdr, sizeof(doshdr), &ulRead)) {
275 goto end;
276 }
277 if(DosSetFilePtr(dllfile, doshdr.e_lfanew, FILE_BEGIN, &ulRead)) {
278 goto end;
279 }
280 //read signature dword
281 if(DosRead(dllfile, (LPVOID)&signature, sizeof(signature), &ulRead)) {
282 goto end;
283 }
284 //read pe header
285 if(DosRead(dllfile, (LPVOID)&fh, sizeof(fh), &ulRead)) {
286 goto end;
287 }
288 //read optional header
289 if(DosRead(dllfile, (LPVOID)&oh, sizeof(oh), &ulRead)) {
290 goto end;
291 }
292 if(doshdr.e_magic != IMAGE_DOS_SIGNATURE || signature != IMAGE_NT_SIGNATURE) {
293 goto end;
294 }
295 fConsoleApp = (oh.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
296
297 // check for high memory support
298 rc = DosQuerySysInfo(QSV_VIRTUALADDRESSLIMIT, QSV_VIRTUALADDRESSLIMIT, &ulSysinfo, sizeof(ulSysinfo));
299 if (rc == 0 && ulSysinfo > 512) //VirtualAddresslimit is in MB
300 {
301 flAllocMem = PAG_ANY; // high memory support. Let's use it!
302 }
303
304 //Reserve enough space to store 4096 pointers to 1MB memory chunks
305 memallocs = (ULONG *)alloca(4096*sizeof(ULONG *));
306 if(memallocs == NULL) {
307 goto end; //oops
308 }
309
310 if(oh.ImageBase < 512*1024*1024) {
311 flAllocMem = 0;
312 }
313 else {
314 if(flAllocMem == 0) {
315 goto end; //no support for > 512 MB
316 }
317 }
318 while(TRUE) {
319 rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | flAllocMem);
320 if(rc) break;
321
322 if(address + FALLOC_SIZE >= oh.ImageBase) {
323 if(address > oh.ImageBase) {//we've passed it!
324 DosFreeMem((PVOID)address);
325 break;
326 }
327 //found the right address
328 DosFreeMem((PVOID)address);
329
330 diff = oh.ImageBase - address;
331 if(diff) {
332 rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | flAllocMem);
333 if(rc) break;
334 }
335 rc = DosAllocMem((PPVOID)&baseAddress, oh.SizeOfImage, PAG_READ | PAG_WRITE | flAllocMem);
336 if(rc) break;
337
338 if(diff) DosFreeMem((PVOID)address);
339
340 reservedMemory = baseAddress;
341 break;
342 }
343 memallocs[alloccnt++] = address;
344 }
345 for(i=0;i<alloccnt;i++) {
346 DosFreeMem((PVOID)memallocs[i]);
347 }
348end:
349 if(dllfile) DosClose(dllfile);
350 return;
351}
352//******************************************************************************
353//******************************************************************************
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