| 1 | /*
|
|---|
| 2 | * PELDR main exe loader code
|
|---|
| 3 | *
|
|---|
| 4 | * Copyright 1998-2001 Sander van Leeuwen (sandervl@xs4all.nl)
|
|---|
| 5 | *
|
|---|
| 6 | * Command line options:
|
|---|
| 7 | * /OPT:[x1=y,x2=z,..]
|
|---|
| 8 | * x = CURDIR -> set current directory to y
|
|---|
| 9 | * (not other options available at this time)
|
|---|
| 10 | *
|
|---|
| 11 | * Project Odin Software License can be found in LICENSE.TXT
|
|---|
| 12 | *
|
|---|
| 13 | */
|
|---|
| 14 | #define INCL_DOSFILEMGR /* File Manager values */
|
|---|
| 15 | #define INCL_DOSERRORS /* DOS Error values */
|
|---|
| 16 | #define INCL_DOSPROCESS /* DOS Process values */
|
|---|
| 17 | #define INCL_DOSMISC /* DOS Miscellanous values */
|
|---|
| 18 | #define INCL_DOSMODULEMGR
|
|---|
| 19 | #define INCL_DOSSESMGR
|
|---|
| 20 | #define INCL_WIN
|
|---|
| 21 | #include <os2.h>
|
|---|
| 22 | #include <bseord.h>
|
|---|
| 23 | #include <stdio.h>
|
|---|
| 24 | #include <string.h>
|
|---|
| 25 | #include <stdlib.h>
|
|---|
| 26 | #include <string.h>
|
|---|
| 27 | #include <assert.h>
|
|---|
| 28 | #include <win32type.h>
|
|---|
| 29 | #include <misc.h>
|
|---|
| 30 | #include <wprocess.h>
|
|---|
| 31 | #include <win/peexe.h>
|
|---|
| 32 | #include <odinpe.h>
|
|---|
| 33 | #include "pe.h"
|
|---|
| 34 |
|
|---|
| 35 | char INFO_BANNER[] = "Usage: PE winexe commandline";
|
|---|
| 36 | char szErrorTitle[] = "Odin";
|
|---|
| 37 | char szLoadErrorMsg[] = "Can't load executable %s";
|
|---|
| 38 | char szFileNotFound[] = "File not found.";
|
|---|
| 39 | char szFileErrorMsg[] = "File IO error";
|
|---|
| 40 | char szPEErrorMsg[] = "Not a valid win32 exe. (perhaps 16 bits windows)";
|
|---|
| 41 | char szCPUErrorMsg[] = "%s doesn't run on x86 machines";
|
|---|
| 42 | char szExeErrorMsg[] = "%s isn't an executable";
|
|---|
| 43 | char szInteralErrorMsg[]= "Internal Error while loading %s";
|
|---|
| 44 | char szInteralErrorMsg1[]= "Internal Error";
|
|---|
| 45 | char szNoKernel32Msg[] = "Can't load/find kernel32.dll (rc=%d, module %s)";
|
|---|
| 46 | char szDosInfoBlocks[] = "DosInfoBlocks failed!";
|
|---|
| 47 | char szErrorExports[] = "Unable to process exports of %s";
|
|---|
| 48 | char szErrorMemory[] = "Memory allocation failure while loading %s";
|
|---|
| 49 | char szErrorImports[] = "Failure to load \"%s\" due to bad or missing %s";
|
|---|
| 50 |
|
|---|
| 51 | char szErrDosStartSession[] = "Failed to start win16 session (rc=%d)";
|
|---|
| 52 |
|
|---|
| 53 | char fullpath[CCHMAXPATH];
|
|---|
| 54 |
|
|---|
| 55 | typedef HAB (* APIENTRY WININITIALIZEPROC)(ULONG flOptions);
|
|---|
| 56 | typedef BOOL (* APIENTRY WINTERMINATEPROC)(HAB hab);
|
|---|
| 57 | typedef HMQ (* APIENTRY WINCREATEMSGQUEUEPROC) (HAB hab, LONG cmsg);
|
|---|
| 58 | typedef BOOL (* APIENTRY WINDESTROYMSGQUEUEPROC) (HMQ hmq);
|
|---|
| 59 | typedef ULONG (* APIENTRY WINMESSAGEBOXPROC) (HWND hwndParent,
|
|---|
| 60 | HWND hwndOwner,
|
|---|
| 61 | PCSZ pszText,
|
|---|
| 62 | PCSZ pszCaption,
|
|---|
| 63 | ULONG idWindow,
|
|---|
| 64 | ULONG flStyle);
|
|---|
| 65 | typedef void (* KRNL32EXCEPTPROC) (void *exceptframe);
|
|---|
| 66 |
|
|---|
| 67 | WININITIALIZEPROC MyWinInitialize = 0;
|
|---|
| 68 | WINTERMINATEPROC MyWinTerminate = 0;
|
|---|
| 69 | WINCREATEMSGQUEUEPROC MyWinCreateMsgQueue = 0;
|
|---|
| 70 | WINDESTROYMSGQUEUEPROC MyWinDestroyMsgQueue = 0;
|
|---|
| 71 | WINMESSAGEBOXPROC MyWinMessageBox = 0;
|
|---|
| 72 | KRNL32EXCEPTPROC Krnl32SetExceptionHandler = 0;
|
|---|
| 73 | KRNL32EXCEPTPROC Krnl32UnsetExceptionHandler = 0;
|
|---|
| 74 |
|
|---|
| 75 |
|
|---|
| 76 | WIN32CTOR CreateWin32Exe = 0;
|
|---|
| 77 | ULONG reservedMemory = 0;
|
|---|
| 78 | BOOL fConsoleApp = FALSE;
|
|---|
| 79 |
|
|---|
| 80 | BOOL AllocateExeMem(char *filename, BOOL *fNEExe);
|
|---|
| 81 |
|
|---|
| 82 | //******************************************************************************
|
|---|
| 83 | //******************************************************************************
|
|---|
| 84 | int main(int argc, char *argv[])
|
|---|
| 85 | {
|
|---|
| 86 | HAB hab = 0; /* PM anchor block handle */
|
|---|
| 87 | HMQ hmq = 0; /* Message queue handle */
|
|---|
| 88 | char exeName[CCHMAXPATH];
|
|---|
| 89 | char fullpath[CCHMAXPATH];
|
|---|
| 90 | char errorMod[CCHMAXPATH];
|
|---|
| 91 | char *pszErrorMsg = NULL;
|
|---|
| 92 | APIRET rc;
|
|---|
| 93 | HMODULE hmodPMWin = 0, hmodKernel32 = 0;
|
|---|
| 94 | PTIB ptib;
|
|---|
| 95 | PPIB ppib;
|
|---|
| 96 | char *cmdline, *win32cmdline, *peoptions, *newcmdline;
|
|---|
| 97 | BOOL fQuote = FALSE, fVioConsole, fIsNEExe, fEndOfCmdLine = FALSE;
|
|---|
| 98 | int nrTries = 1;
|
|---|
| 99 |
|
|---|
| 100 | if(DosGetInfoBlocks(&ptib, &ppib) == 0)
|
|---|
| 101 | {
|
|---|
| 102 | char *pszTemp;
|
|---|
| 103 |
|
|---|
| 104 | fullpath[0] = 0;
|
|---|
| 105 | DosQueryModuleName(ppib->pib_hmte, sizeof(fullpath), fullpath);
|
|---|
| 106 |
|
|---|
| 107 | strupr(fullpath);
|
|---|
| 108 | #ifdef COMMAND_LINE_VERSION
|
|---|
| 109 | pszTemp = strstr(fullpath, "PEC.EXE");
|
|---|
| 110 | #else
|
|---|
| 111 | pszTemp = strstr(fullpath, "PE.EXE");
|
|---|
| 112 | #endif
|
|---|
| 113 | if(pszTemp == NULL) {
|
|---|
| 114 | pszErrorMsg = szInteralErrorMsg1;
|
|---|
| 115 | goto failerror;
|
|---|
| 116 | }
|
|---|
| 117 | pszTemp--; //to go trailing backslash
|
|---|
| 118 | *pszTemp = 0;
|
|---|
| 119 | strcat(fullpath, ";%BeginLIBPATH%");
|
|---|
| 120 | DosSetExtLIBPATH(fullpath, BEGIN_LIBPATH);
|
|---|
| 121 | }
|
|---|
| 122 |
|
|---|
| 123 | if(argc >= 2) {
|
|---|
| 124 | if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
|
|---|
| 125 | tryagain:
|
|---|
| 126 | cmdline = ppib->pib_pchcmd;
|
|---|
| 127 | cmdline += strlen(cmdline)+1; //skip pe.exe
|
|---|
| 128 | peoptions = strstr(cmdline, "/OPT:[");
|
|---|
| 129 | if(peoptions) {
|
|---|
| 130 | newcmdline = strchr(peoptions, ']');
|
|---|
| 131 | if(newcmdline) {
|
|---|
| 132 | cmdline = newcmdline+1;
|
|---|
| 133 | }
|
|---|
| 134 | #ifdef DEBUG
|
|---|
| 135 | else _interrupt(3); //should not happen!
|
|---|
| 136 | #endif
|
|---|
| 137 | }
|
|---|
| 138 | while(*cmdline == ' ') cmdline++; //skip leading space
|
|---|
| 139 | if(*cmdline == '"') {
|
|---|
| 140 | cmdline++;
|
|---|
| 141 | fQuote = TRUE;
|
|---|
| 142 | }
|
|---|
| 143 | win32cmdline = cmdline;
|
|---|
| 144 |
|
|---|
| 145 | strncpy(exeName, cmdline, sizeof(exeName)-1);
|
|---|
| 146 | exeName[sizeof(exeName)-1] = 0;
|
|---|
| 147 | char *p = exeName;
|
|---|
| 148 | if(fQuote) {
|
|---|
| 149 | while(*p != '"' && *p != 0) p++;
|
|---|
| 150 | }
|
|---|
| 151 | else {
|
|---|
| 152 | for(int i=0;i<nrTries;i++) {
|
|---|
| 153 | while(*p != ' ' && *p != 0) p++;
|
|---|
| 154 | if(*p == 0) break;
|
|---|
| 155 | if(i != nrTries-1) {
|
|---|
| 156 | while(*p == ' ' && *p != 0) p++;
|
|---|
| 157 | }
|
|---|
| 158 | }
|
|---|
| 159 | if(nrTries > 1 && *p == 0) {
|
|---|
| 160 | fEndOfCmdLine = TRUE;
|
|---|
| 161 | }
|
|---|
| 162 | }
|
|---|
| 163 | *p = 0;
|
|---|
| 164 | strupr(exeName);
|
|---|
| 165 | cmdline = strstr(exeName, ".EXE");
|
|---|
| 166 | if(cmdline) {
|
|---|
| 167 | cmdline[4] = 0;
|
|---|
| 168 | win32cmdline += ((ULONG)cmdline - (ULONG)exeName) + 4;
|
|---|
| 169 | }
|
|---|
| 170 | else {
|
|---|
| 171 | win32cmdline += strlen(exeName);
|
|---|
| 172 | if(strstr(exeName, ".") == NULL) {
|
|---|
| 173 | strcat(exeName, ".EXE");
|
|---|
| 174 | }
|
|---|
| 175 | }
|
|---|
| 176 | if(fQuote) win32cmdline++;
|
|---|
| 177 | while(*win32cmdline == ' ') win32cmdline++; //skip spaces
|
|---|
| 178 |
|
|---|
| 179 | cmdline = exeName + strlen(exeName) - 1;
|
|---|
| 180 | while(*cmdline == ' ') cmdline--;
|
|---|
| 181 | cmdline[1] = 0;
|
|---|
| 182 |
|
|---|
| 183 | char drive[_MAX_DRIVE];
|
|---|
| 184 | char dir[_MAX_DIR];
|
|---|
| 185 | char fname[_MAX_FNAME];
|
|---|
| 186 | char ext[_MAX_EXT];
|
|---|
| 187 | char exeShortName[_MAX_FNAME+_MAX_EXT];
|
|---|
| 188 | _splitpath(exeName, drive, dir, fname, ext);
|
|---|
| 189 |
|
|---|
| 190 | strcpy(fullpath, drive);
|
|---|
| 191 | strcat(fullpath, dir);
|
|---|
| 192 |
|
|---|
| 193 | strcpy(exeShortName, fname);
|
|---|
| 194 | strcat(exeShortName, ext);
|
|---|
| 195 |
|
|---|
| 196 | if ( strlen(fullpath) == 0 )
|
|---|
| 197 | {
|
|---|
| 198 | char newExeName[CCHMAXPATH];
|
|---|
| 199 |
|
|---|
| 200 | if(DosSearchPath( SEARCH_CUR_DIRECTORY | SEARCH_ENVIRONMENT | SEARCH_IGNORENETERRS
|
|---|
| 201 | , "WINDOWSPATH" /* environment value */
|
|---|
| 202 | , exeShortName /* Name of file to look for */
|
|---|
| 203 | , newExeName /* Result of the search */
|
|---|
| 204 | , sizeof(newExeName) /* Length of search buffer */
|
|---|
| 205 | ) == NO_ERROR)
|
|---|
| 206 | {
|
|---|
| 207 | strcpy(exeName, newExeName);
|
|---|
| 208 | }
|
|---|
| 209 | }
|
|---|
| 210 |
|
|---|
| 211 | FILESTATUS3 fstat3;
|
|---|
| 212 | if(DosQueryPathInfo(exeName, FIL_STANDARD, (PVOID)&fstat3, sizeof(fstat3)))
|
|---|
| 213 | {
|
|---|
| 214 | nrTries++;
|
|---|
| 215 | if(fEndOfCmdLine) {
|
|---|
| 216 | pszErrorMsg = szFileNotFound;
|
|---|
| 217 | goto failerror;
|
|---|
| 218 | }
|
|---|
| 219 |
|
|---|
| 220 | if(*win32cmdline != NULL && !fQuote) {
|
|---|
| 221 | goto tryagain;
|
|---|
| 222 | }
|
|---|
| 223 | }
|
|---|
| 224 | }
|
|---|
| 225 | else {//should never happen!
|
|---|
| 226 | pszErrorMsg = szDosInfoBlocks;
|
|---|
| 227 | goto failerror;
|
|---|
| 228 | }
|
|---|
| 229 | AllocateExeMem(exeName, &fIsNEExe);
|
|---|
| 230 | if(fIsNEExe) {
|
|---|
| 231 | STARTDATA sdata = {0};
|
|---|
| 232 | ULONG idSession;
|
|---|
| 233 | PID pid;
|
|---|
| 234 |
|
|---|
| 235 | sdata.Length = sizeof(sdata);
|
|---|
| 236 | sdata.PgmName = (PSZ)"w16odin.exe";
|
|---|
| 237 | strcpy(fullpath, exeName);
|
|---|
| 238 | strcat(fullpath, " ");
|
|---|
| 239 | strcat(fullpath, win32cmdline);
|
|---|
| 240 | sdata.PgmInputs = fullpath;
|
|---|
| 241 | sdata.FgBg = SSF_FGBG_FORE;
|
|---|
| 242 | sdata.SessionType = SSF_TYPE_WINDOWEDVDM;
|
|---|
| 243 | rc = DosStartSession(&sdata, &idSession, &pid);
|
|---|
| 244 | if(rc) {
|
|---|
| 245 | sprintf(fullpath, szErrDosStartSession, rc);
|
|---|
| 246 | pszErrorMsg = fullpath;
|
|---|
| 247 | goto failerror;
|
|---|
| 248 | }
|
|---|
| 249 | return 0;
|
|---|
| 250 | }
|
|---|
| 251 | }
|
|---|
| 252 |
|
|---|
| 253 | #ifdef COMMAND_LINE_VERSION
|
|---|
| 254 | if(DosGetInfoBlocks(&ptib, &ppib) == 0) {
|
|---|
| 255 | //switch process type to PM so the command line app can create PM
|
|---|
| 256 | //windows
|
|---|
| 257 | ppib->pib_ultype = 3;
|
|---|
| 258 | }
|
|---|
| 259 | #endif
|
|---|
| 260 |
|
|---|
| 261 | rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN", &hmodPMWin);
|
|---|
| 262 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32INITIALIZE, NULL, (PFN *)&MyWinInitialize);
|
|---|
| 263 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32TERMINATE, NULL, (PFN *)&MyWinTerminate);
|
|---|
| 264 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32CREATEMSGQUEUE, NULL, (PFN *)&MyWinCreateMsgQueue);
|
|---|
| 265 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32DESTROYMSGQUEUE, NULL, (PFN *)&MyWinDestroyMsgQueue);
|
|---|
| 266 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
|
|---|
| 267 |
|
|---|
| 268 | if ((hab = MyWinInitialize(0)) == 0L) /* Initialize PM */
|
|---|
| 269 | goto fail;
|
|---|
| 270 |
|
|---|
| 271 | hmq = MyWinCreateMsgQueue(hab, 0);
|
|---|
| 272 |
|
|---|
| 273 | if(argc < 2) {
|
|---|
| 274 | MyWinMessageBox(HWND_DESKTOP, NULL, INFO_BANNER, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
|
|---|
| 275 | goto fail;
|
|---|
| 276 | }
|
|---|
| 277 |
|
|---|
| 278 | errorMod[0] = 0;
|
|---|
| 279 | rc = DosLoadModule(errorMod, sizeof(errorMod), "KERNEL32", &hmodKernel32);
|
|---|
| 280 | if(rc) {
|
|---|
| 281 | sprintf(fullpath, szNoKernel32Msg, rc, errorMod);
|
|---|
| 282 | MyWinMessageBox(HWND_DESKTOP, NULL, fullpath, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
|
|---|
| 283 | goto fail;
|
|---|
| 284 | }
|
|---|
| 285 | rc = DosQueryProcAddr(hmodKernel32, 0, "_CreateWin32PeLdrExe@36", (PFN *)&CreateWin32Exe);
|
|---|
| 286 |
|
|---|
| 287 | #ifdef COMMAND_LINE_VERSION
|
|---|
| 288 | fVioConsole = TRUE;
|
|---|
| 289 | #else
|
|---|
| 290 | fVioConsole = FALSE;
|
|---|
| 291 | #endif
|
|---|
| 292 | rc = CreateWin32Exe(exeName, win32cmdline, peoptions, reservedMemory, 0,
|
|---|
| 293 | fConsoleApp, fVioConsole, errorMod, sizeof(errorMod));
|
|---|
| 294 | if(rc != LDRERROR_SUCCESS)
|
|---|
| 295 | {
|
|---|
| 296 | char szErrorMsg[512];
|
|---|
| 297 |
|
|---|
| 298 | switch(rc) {
|
|---|
| 299 | case LDRERROR_INVALID_MODULE:
|
|---|
| 300 | sprintf(szErrorMsg, szLoadErrorMsg, exeName);
|
|---|
| 301 | break;
|
|---|
| 302 | case LDRERROR_INVALID_CPU:
|
|---|
| 303 | sprintf(pszErrorMsg, szCPUErrorMsg, exeName);
|
|---|
| 304 | break;
|
|---|
| 305 | case LDRERROR_FILE_SYSTEM:
|
|---|
| 306 | sprintf(szErrorMsg, szExeErrorMsg, exeName);
|
|---|
| 307 | break;
|
|---|
| 308 | case LDRERROR_MEMORY:
|
|---|
| 309 | sprintf(szErrorMsg, szErrorMemory, exeName);
|
|---|
| 310 | break;
|
|---|
| 311 | case LDRERROR_EXPORTS:
|
|---|
| 312 | sprintf(szErrorMsg, szErrorExports, exeName);
|
|---|
| 313 | break;
|
|---|
| 314 | case LDRERROR_IMPORTS:
|
|---|
| 315 | sprintf(szErrorMsg, szErrorImports, exeName, errorMod);
|
|---|
| 316 | break;
|
|---|
| 317 | case LDRERROR_INVALID_SECTION:
|
|---|
| 318 | default:
|
|---|
| 319 | sprintf(szErrorMsg, szInteralErrorMsg, exeName);
|
|---|
| 320 | break;
|
|---|
| 321 | }
|
|---|
| 322 |
|
|---|
| 323 | MyWinMessageBox(HWND_DESKTOP, HWND_DESKTOP, szErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
|
|---|
| 324 | goto fail;
|
|---|
| 325 | }
|
|---|
| 326 |
|
|---|
| 327 | if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
|
|---|
| 328 | MyWinTerminate( hab ); /* Terminate the application */
|
|---|
| 329 |
|
|---|
| 330 | DosFreeModule(hmodPMWin);
|
|---|
| 331 | DosFreeModule(hmodKernel32);
|
|---|
| 332 | return 0;
|
|---|
| 333 |
|
|---|
| 334 | fail:
|
|---|
| 335 | if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
|
|---|
| 336 | if(hab) MyWinTerminate( hab ); /* Terminate the application */
|
|---|
| 337 |
|
|---|
| 338 | if(hmodPMWin) DosFreeModule(hmodPMWin);
|
|---|
| 339 | if(hmodKernel32) DosFreeModule(hmodKernel32);
|
|---|
| 340 | return(1);
|
|---|
| 341 |
|
|---|
| 342 | failerror:
|
|---|
| 343 | rc = DosLoadModule(exeName, sizeof(exeName), "PMWIN", &hmodPMWin);
|
|---|
| 344 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32INITIALIZE, NULL, (PFN *)&MyWinInitialize);
|
|---|
| 345 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32TERMINATE, NULL, (PFN *)&MyWinTerminate);
|
|---|
| 346 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32CREATEMSGQUEUE, NULL, (PFN *)&MyWinCreateMsgQueue);
|
|---|
| 347 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32DESTROYMSGQUEUE, NULL, (PFN *)&MyWinDestroyMsgQueue);
|
|---|
| 348 | rc = DosQueryProcAddr(hmodPMWin, ORD_WIN32MESSAGEBOX, NULL, (PFN *)&MyWinMessageBox);
|
|---|
| 349 | if(rc == 0) {
|
|---|
| 350 | if ((hab = MyWinInitialize(0)) == 0L) /* Initialize PM */
|
|---|
| 351 | goto fail;
|
|---|
| 352 |
|
|---|
| 353 | hmq = MyWinCreateMsgQueue(hab, 0);
|
|---|
| 354 |
|
|---|
| 355 | MyWinMessageBox(HWND_DESKTOP, NULL, pszErrorMsg, szErrorTitle, 0, MB_OK | MB_ERROR | MB_MOVEABLE);
|
|---|
| 356 | }
|
|---|
| 357 | if(hmq) MyWinDestroyMsgQueue( hmq ); /* Tidy up... */
|
|---|
| 358 | if(hab) MyWinTerminate( hab ); /* Terminate the application */
|
|---|
| 359 | if(hmodPMWin) DosFreeModule(hmodPMWin);
|
|---|
| 360 | return 1;
|
|---|
| 361 | }
|
|---|
| 362 | //******************************************************************************
|
|---|
| 363 | //SvL: Reserve memory for win32 exes without fixups
|
|---|
| 364 | // This is done before any Odin or PMWIN dll is loaded, so we'll get
|
|---|
| 365 | // a very low virtual address. (which is exactly what we want)
|
|---|
| 366 | //******************************************************************************
|
|---|
| 367 | BOOL AllocateExeMem(char *filename, BOOL *fNEExe)
|
|---|
| 368 | {
|
|---|
| 369 | HFILE dllfile = 0;
|
|---|
| 370 | char szFileName[CCHMAXPATH], *tmp;
|
|---|
| 371 | char szResult[CCHMAXPATH];
|
|---|
| 372 | ULONG action, ulRead, signature;
|
|---|
| 373 | APIRET rc;
|
|---|
| 374 | IMAGE_DOS_HEADER doshdr;
|
|---|
| 375 | IMAGE_OPTIONAL_HEADER oh;
|
|---|
| 376 | IMAGE_FILE_HEADER fh;
|
|---|
| 377 | ULONG address = 0;
|
|---|
| 378 | ULONG *memallocs;
|
|---|
| 379 | ULONG alloccnt = 0;
|
|---|
| 380 | ULONG diff, i, baseAddress;
|
|---|
| 381 | ULONG ulSysinfo, flAllocMem = 0;
|
|---|
| 382 | BOOL ret = FALSE;
|
|---|
| 383 |
|
|---|
| 384 | *fNEExe = FALSE;
|
|---|
| 385 | strcpy(szFileName, filename);
|
|---|
| 386 |
|
|---|
| 387 | 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);
|
|---|
| 388 | if(rc != 0) {
|
|---|
| 389 | if(!strstr(szFileName, ".EXE")) {
|
|---|
| 390 | strcat(szFileName,".EXE");
|
|---|
| 391 | }
|
|---|
| 392 | }
|
|---|
| 393 | else DosClose(dllfile);
|
|---|
| 394 |
|
|---|
| 395 | 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);
|
|---|
| 396 | if(rc) {
|
|---|
| 397 | if(DosSearchPath(SEARCH_IGNORENETERRS|SEARCH_ENVIRONMENT, "PATH",
|
|---|
| 398 | szFileName, szResult, sizeof(szResult)) != 0) {
|
|---|
| 399 | goto end; //oops
|
|---|
| 400 | }
|
|---|
| 401 | 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);
|
|---|
| 402 | if(rc) {
|
|---|
| 403 | goto end; //oops
|
|---|
| 404 | }
|
|---|
| 405 | }
|
|---|
| 406 |
|
|---|
| 407 | //read dos header
|
|---|
| 408 | if(DosRead(dllfile, (LPVOID)&doshdr, sizeof(doshdr), &ulRead)) {
|
|---|
| 409 | goto end;
|
|---|
| 410 | }
|
|---|
| 411 | if(DosSetFilePtr(dllfile, doshdr.e_lfanew, FILE_BEGIN, &ulRead)) {
|
|---|
| 412 | goto end;
|
|---|
| 413 | }
|
|---|
| 414 | //read signature dword
|
|---|
| 415 | if(DosRead(dllfile, (LPVOID)&signature, sizeof(signature), &ulRead)) {
|
|---|
| 416 | goto end;
|
|---|
| 417 | }
|
|---|
| 418 | //read pe header
|
|---|
| 419 | if(DosRead(dllfile, (LPVOID)&fh, sizeof(fh), &ulRead)) {
|
|---|
| 420 | goto end;
|
|---|
| 421 | }
|
|---|
| 422 | //read optional header
|
|---|
| 423 | if(DosRead(dllfile, (LPVOID)&oh, sizeof(oh), &ulRead)) {
|
|---|
| 424 | goto end;
|
|---|
| 425 | }
|
|---|
| 426 | if(doshdr.e_magic != IMAGE_DOS_SIGNATURE || signature != IMAGE_NT_SIGNATURE) {
|
|---|
| 427 | if(LOWORD(signature) == IMAGE_OS2_SIGNATURE) {
|
|---|
| 428 | *fNEExe = TRUE;
|
|---|
| 429 | }
|
|---|
| 430 | goto end;
|
|---|
| 431 | }
|
|---|
| 432 | fConsoleApp = (oh.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_CUI);
|
|---|
| 433 |
|
|---|
| 434 | // check for high memory support
|
|---|
| 435 | rc = DosQuerySysInfo(QSV_VIRTUALADDRESSLIMIT, QSV_VIRTUALADDRESSLIMIT, &ulSysinfo, sizeof(ulSysinfo));
|
|---|
| 436 | if (rc == 0 && ulSysinfo > 512) //VirtualAddresslimit is in MB
|
|---|
| 437 | {
|
|---|
| 438 | flAllocMem = PAG_ANY; // high memory support. Let's use it!
|
|---|
| 439 | }
|
|---|
| 440 |
|
|---|
| 441 | //Reserve enough space to store 4096 pointers to 1MB memory chunks
|
|---|
| 442 | memallocs = (ULONG *)alloca(4096*sizeof(ULONG *));
|
|---|
| 443 | if(memallocs == NULL) {
|
|---|
| 444 | goto end; //oops
|
|---|
| 445 | }
|
|---|
| 446 |
|
|---|
| 447 | if(oh.ImageBase < 512*1024*1024) {
|
|---|
| 448 | flAllocMem = 0;
|
|---|
| 449 | }
|
|---|
| 450 | else {
|
|---|
| 451 | if(flAllocMem == 0) {
|
|---|
| 452 | goto end; //no support for > 512 MB
|
|---|
| 453 | }
|
|---|
| 454 | }
|
|---|
| 455 | while(TRUE) {
|
|---|
| 456 | rc = DosAllocMem((PPVOID)&address, FALLOC_SIZE, PAG_READ | flAllocMem);
|
|---|
| 457 | if(rc) break;
|
|---|
| 458 |
|
|---|
| 459 | if(address + FALLOC_SIZE >= oh.ImageBase) {
|
|---|
| 460 | if(address > oh.ImageBase) {//we've passed it!
|
|---|
| 461 | DosFreeMem((PVOID)address);
|
|---|
| 462 | break;
|
|---|
| 463 | }
|
|---|
| 464 | //found the right address
|
|---|
| 465 | DosFreeMem((PVOID)address);
|
|---|
| 466 |
|
|---|
| 467 | diff = oh.ImageBase - address;
|
|---|
| 468 | if(diff) {
|
|---|
| 469 | rc = DosAllocMem((PPVOID)&address, diff, PAG_READ | flAllocMem);
|
|---|
| 470 | if(rc) break;
|
|---|
| 471 | }
|
|---|
| 472 | rc = DosAllocMem((PPVOID)&baseAddress, oh.SizeOfImage, PAG_READ | PAG_WRITE | flAllocMem);
|
|---|
| 473 | if(rc) break;
|
|---|
| 474 |
|
|---|
| 475 | if(diff) DosFreeMem((PVOID)address);
|
|---|
| 476 |
|
|---|
| 477 | reservedMemory = baseAddress;
|
|---|
| 478 | break;
|
|---|
| 479 | }
|
|---|
| 480 | memallocs[alloccnt++] = address;
|
|---|
| 481 | }
|
|---|
| 482 | for(i=0;i<alloccnt;i++) {
|
|---|
| 483 | DosFreeMem((PVOID)memallocs[i]);
|
|---|
| 484 | }
|
|---|
| 485 | ret = TRUE;
|
|---|
| 486 | end:
|
|---|
| 487 | if(dllfile) DosClose(dllfile);
|
|---|
| 488 | return ret;
|
|---|
| 489 | }
|
|---|
| 490 | //******************************************************************************
|
|---|
| 491 | //******************************************************************************
|
|---|
