source: trunk/src/peldr/pe.cpp@ 3721

Last change on this file since 3721 was 3376, checked in by sandervl, 25 years ago

pe loader command line fixes + support for names with spaces
File size: 10.0 KB
Line 
1/* $Id: pe.cpp,v 1.16 2000-04-14 22:56:11 sandervl Exp $ */
2
3/*
4 * PELDR main exe loader code
5 *
6 * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 */
12#define INCL_DOSFILEMGR /* File Manager values */
13#define INCL_DOSERRORS /* DOS Error values */
14#define INCL_DOSPROCESS /* DOS Process values */
15#define INCL_DOSMISC /* DOS Miscellanous values */
16#define INCL_DOSMODULEMGR
17#define INCL_WIN
18#include <os2.h>
19#include <bseord.h>
20#include <stdio.h>
21#include <string.h>
22#include <stdlib.h>
23#include <string.h>
24#include <assert.h>
25#include <win32type.h>
26#include <misc.h>
27#include <wprocess.h>
28#include <win\peexe.h>
29#include "pe.h"
30
31char INFO_BANNER[] = "Usage: PE winexe commandline";
32char szErrorTitle[] = "Odin";
33char szLoadErrorMsg[] = "Can't load executable";
34char szFileErrorMsg[] = "File IO error";
35char szPEErrorMsg[] = "Not a valid win32 exe. (perhaps 16 bits windows)";
36char szCPUErrorMsg[] = "Executable doesn't run on x86 machines";
37char szExeErrorMsg[] = "File isn't an executable";
38char szInteralErrorMsg[]= "Internal Error";
39char szNoKernel32Msg[] = "Can't load/find kernel32.dll (rc=%d)";
40char szDosInfoBlocks[] = "DosInfoBlocks failed!";
41
42char fullpath[CCHMAXPATH];
43
44typedef HAB (* APIENTRY WININITIALIZEPROC)(ULONG flOptions);
45typedef BOOL (* APIENTRY WINTERMINATEPROC)(HAB hab);
46typedef HMQ (* APIENTRY WINCREATEMSGQUEUEPROC) (HAB hab, LONG cmsg);
47typedef BOOL (* APIENTRY WINDESTROYMSGQUEUEPROC) (HMQ hmq);
48typedef ULONG (* APIENTRY WINMESSAGEBOXPROC) (HWND hwndParent,
49 HWND hwndOwner,
50 PCSZ pszText,
51 PCSZ pszCaption,
52 ULONG idWindow,
53 ULONG flStyle);
54typedef void (* KRNL32EXCEPTPROC) (void *exceptframe);
55
56WININITIALIZEPROC MyWinInitialize = 0;
57WINTERMINATEPROC MyWinTerminate = 0;
58WINCREATEMSGQUEUEPROC MyWinCreateMsgQueue = 0;
59WINDESTROYMSGQUEUEPROC MyWinDestroyMsgQueue = 0;
60WINMESSAGEBOXPROC MyWinMessageBox = 0;
61KRNL32EXCEPTPROC Krnl32SetExceptionHandler = 0;
62KRNL32EXCEPTPROC Krnl32UnsetExceptionHandler = 0;
63
64//should be the same as in ..\kernel32\winexepeldr.h
65typedef BOOL (* WIN32API WIN32CTOR)(char *, char *, ULONG);
66
67WIN32CTOR CreateWin32Exe = 0;
68
69ULONG reservedMemory = 0;
70
71void AllocateExeMem(char *filename);
72
73//******************************************************************************
74//******************************************************************************
75int main(int argc, char *argv[])
76{
77 HAB hab = 0; /* PM anchor block handle */
78 HMQ hmq = 0; /* Message queue handle */
79 char exeName[CCHMAXPATH];
80 char fullpath[CCHMAXPATH];
81 APIRET rc;
82 HMODULE hmodPMWin = 0, hmodKernel32 = 0;
83 PTIB ptib;
84 PPIB ppib;
85 char *cmdline, *win32cmdline;
86
87 if(argc >= 2) {
88 if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
89 cmdline = ppib->pib_pchcmd;
90 cmdline += strlen(cmdline)+1; //skip pe.exe
91 while(*cmdline == ' ') cmdline++; //skip leading space
92 if(*cmdline == '"') cmdline++;
93 win32cmdline = cmdline;
94
95 strncpy(exeName, cmdline, sizeof(exeName)-1);
96 exeName[sizeof(exeName)-1] = 0;
97 strupr(exeName);
98 cmdline = strstr(exeName, ".EXE");
99 if(cmdline) {
100 cmdline[4] = 0;
101 win32cmdline += ((ULONG)cmdline - (ULONG)exeName) + 4;
102 }
103 else {
104 cmdline = exeName;
105 while(*cmdline && *cmdline != ' ') cmdline++; //skip exe name
106 *cmdline = 0;
107 win32cmdline += ((ULONG)cmdline - (ULONG)exeName);
108 if(strstr(exeName, ".") == NULL) {
109 strcat(exeName, ".EXE");
110 }
111 }
112 while(*win32cmdline == ' ') win32cmdline++; //skip spaces
113
114 cmdline = exeName + strlen(exeName) - 1;
115 while(*cmdline == ' ') cmdline--;
116 cmdline[1] = 0;
117 if(DosQueryPathInfo(exeName, FIL_QUERYFULLNAME, (PVOID)fullpath, sizeof(fullpath)) == 0) {
118 strcpy(exeName, fullpath);
119 }
120 }
121 else {//should never happen!
122 DebugInt3();
123 rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN.DLL", &hmodPMWin);
124 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
125 MyWinMessageBox(HWND_DESKTOP, NULL, szDosInfoBlocks, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
126 goto fail;
127 }
128 AllocateExeMem(exeName);
129 }
130
131 rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN.DLL", &hmodPMWin);
132 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32INITIALIZE, NULL, (PFN *)&MyWinInitialize);
133 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32TERMINATE, NULL, (PFN *)&MyWinTerminate);
134 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32CREATEMSGQUEUE, NULL, (PFN *)&MyWinCreateMsgQueue);
135 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32DESTROYMSGQUEUE, NULL, (PFN *)&MyWinDestroyMsgQueue);
136 rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
137
138 if ((hab = MyWinInitialize(0)) == 0L) /* Initialize PM */
139 goto fail;
140
141 hmq = MyWinCreateMsgQueue(hab, 0);
142
143 if(argc < 2) {
144 MyWinMessageBox(HWND_DESKTOP, NULL, INFO_BANNER, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
145 goto fail;
146 }
147
148 rc = DosLoadModule(exeName, sizeof(exeName), "KERNEL32.DLL", &hmodKernel32);
149 if(rc) {
150 sprintf(exeName, szNoKernel32Msg, rc);
151 MyWinMessageBox(HWND_DESKTOP, NULL, exeName, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
152 goto fail;
153 }
154 rc = DosQueryProcAddr(hmodKernel32, 0, "_CreateWin32PeLdrExe@12", (PFN *)&CreateWin32Exe);
155
156 if(CreateWin32Exe(exeName, win32cmdline, reservedMemory) == FALSE) {
157 goto fail;
158 }
159
160 if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
161 MyWinTerminate( hab ); /* Terminate the application */
162
163 DosFreeModule(hmodPMWin);
164 DosFreeModule(hmodKernel32);
165 return 0;
166
167fail:
168 if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
169 if(hab) MyWinTerminate( hab ); /* Terminate the application */
170
171 if(hmodPMWin) DosFreeModule(hmodPMWin);
172 if(hmodKernel32) DosFreeModule(hmodKernel32);
173 return(1);
174}
175//******************************************************************************
176//SvL: Reserve memory for win32 exes without fixups
177// This is done before any Odin or PMWIN dll is loaded, so we'll get
178// a very low virtual address. (which is exactly what we want)
179//******************************************************************************
180void AllocateExeMem(char *filename)
181{
182 HFILE dllfile = 0;
183 char szFileName[CCHMAXPATH], *tmp;
184 char szResult[CCHMAXPATH];
185 ULONG action, ulRead, signature;
186 APIRET rc;
187 IMAGE_DOS_HEADER doshdr;
188 IMAGE_OPTIONAL_HEADER oh;
189 IMAGE_FILE_HEADER fh;
190 ULONG address = 0;
191 ULONG *memallocs;
192 ULONG alloccnt = 0;
193 ULONG diff, i, baseAddress;
194 ULONG ulSysinfo, flAllocMem = 0;
195
196 strcpy(szFileName, filename);
197
198 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);
199 if(rc != 0) {
200 if(!strstr(szFileName, ".EXE")) {
201 strcat(szFileName,".EXE");
202 }
203 }
204 else DosClose(dllfile);
205
206 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);
207 if(rc) {
208 if(DosSearchPath(SEARCH_IGNORENETERRS|SEARCH_ENVIRONMENT, "PATH",
209 szFileName, szResult, sizeof(szResult)) != 0) {
210 goto end; //oops
211 }
212 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);
213 if(rc) {
214 goto end; //oops
215 }
216 }
217
218 //read dos header
219 if(DosRead(dllfile, (LPVOID)&doshdr, sizeof(doshdr), &ulRead)) {
220 goto end;
221 }
222 if(DosSetFilePtr(dllfile, doshdr.e_lfanew, FILE_BEGIN, &ulRead)) {
223 goto end;
224 }
225 //read signature dword
226 if(DosRead(dllfile, (LPVOID)&signature, sizeof(signature), &ulRead)) {
227 goto end;
228 }
229 //read pe header
230 if(DosRead(dllfile, (LPVOID)&fh, sizeof(fh), &ulRead)) {
231 goto end;
232 }
233 //read optional header
234 if(DosRead(dllfile, (LPVOID)&oh, sizeof(oh), &ulRead)) {
235 goto end;
236 }
237 if(doshdr.e_magic != IMAGE_DOS_SIGNATURE || signature != IMAGE_NT_SIGNATURE) {
238 goto end;
239 }
240 if(!(fh.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)) {
241 goto end; //no need to allocate anything now
242 }
243
244 // check for high memory support
245 rc = DosQuerySysInfo(QSV_VIRTUALADDRESSLIMIT, QSV_VIRTUALADDRESSLIMIT, &ulSysinfo, sizeof(ulSysinfo));
246 if (rc == 0 && ulSysinfo > 512) //VirtualAddresslimit is in MB
247 {
248 flAllocMem = PAG_ANY; // high memory support. Let's use it!
249 }
250
251 //Reserve enough space to store 4096 pointers to 1MB memory chunks
252 memallocs = (ULONG *)alloca(4096*sizeof(ULONG *));
253 if(memallocs == NULL) {
254 goto end; //oops
255 }
256
257 if(oh.ImageBase < 512*1024*1024) {
258 flAllocMem = 0;
259 }
260 else {
261 if(flAllocMem == 0) {
262 goto end; //no support for > 512 MB
263 }
264 }
265 while(TRUE) {
266 rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | flAllocMem);
267 if(rc) break;
268
269 if(address + FALLOC_SIZE >= oh.ImageBase) {
270 if(address > oh.ImageBase) {//we've passed it!
271 DosFreeMem((PVOID)address);
272 break;
273 }
274 //found the right address
275 DosFreeMem((PVOID)address);
276
277 diff = oh.ImageBase - address;
278 if(diff) {
279 rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | flAllocMem);
280 if(rc) break;
281 }
282 rc = DosAllocMem((PPVOID)&baseAddress, oh.SizeOfImage, PAG_READ | PAG_WRITE | flAllocMem);
283 if(rc) break;
284
285 if(diff) DosFreeMem((PVOID)address);
286
287 reservedMemory = baseAddress;
288 break;
289 }
290 memallocs[alloccnt++] = address;
291 }
292 for(i=0;i<alloccnt;i++) {
293 DosFreeMem((PVOID)memallocs[i]);
294 }
295end:
296 if(dllfile) DosClose(dllfile);
297 return;
298}
299//******************************************************************************
300//******************************************************************************
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