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source: trunk/src/win32k/dev16/probkrnl.c@ 4637

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Last change on this file since 4637 was 4542, checked in by bird, 25 years ago
Fixed bug which prevented the symbolname to be copied to the szSymbolfile global variable.
File size: 43.4 KB

Line
1	/* $Id: probkrnl.c,v 1.28 2000-10-27 10:59:13 bird Exp $
2	*
3	* Description: Autoprobes the os2krnl file and os2krnl[*].sym files.
4	* Another Hack!
5	*
6	* 16-bit inittime code.
7	*
8	* All data has to be initiated because this is 16-bit C code
9	* and is to be linked with 32-bit C/C++ code. Uninitiazlied
10	* data ends up in the BSS segment, and that segment can't
11	* both be 32-bit and 16-bit. I have not found any other way
12	* around this problem that initiating all data.
13	*
14	* How this works:
15	* 1. parses the device-line parameters and collects some "SysInfo".
16	* 2. gets the kernel object table and kernel info like build no. (elf$)
17	* 3. if non-debug kernel the symbol database is scanned to get the syms
18	* 4. if Syms not found THEN locates and scans the symbol-file(s) for the
19	* entrypoints which are wanted.
20	* 5. the entry points are verified. (elf$)
21	* 6. finished.
22	*
23	* Copyright (c) 1998-2000 knut st. osmundsen (knut.stange.osmundsen@mynd.no)
24	*
25	* Project Odin Software License can be found in LICENSE.TXT
26	*
27	*/
28
29
30	/*******************************************************************************
31	* Defined Constants And Macros *
32	*******************************************************************************/
33	/* Disable logging when doing extracts */
34	#if defined(EXTRACT) \|\| defined(RING0)
35	#define NOLOGGING 1
36	#endif
37
38	#define fclose(a) DosClose(a)
39	#define SEEK_SET FILE_BEGIN
40	#define SEEK_END FILE_END
41
42	#define WORD unsigned short int
43	#define DWORD unsigned long int
44
45	/* "@#IBM:14.039#@ os2krnl... "*/
46	/* "@#IBM:8.264#@ os2krnl... "*/
47	#define KERNEL_ID_STRING_LENGTH 42
48	#define KERNEL_READ_SIZE 512
49
50	#define INCL_BASE
51	#define INCL_DOS
52	#define INCL_NOPMAPI
53
54	/*******************************************************************************
55	* Header Files *
56	*******************************************************************************/
57	#include <os2.h>
58
59	#include <exe386.h>
60	#include <strat2.h>
61	#include <reqpkt.h>
62
63	#include "devSegDf.h"
64	#undef DATA16_INIT
65	#define DATA16_INIT
66	#undef CODE16_INIT
67	#define CODE16_INIT
68	#include "os2krnl.h" /* must be included before dev1632.h! */
69	#include "sym.h"
70	#include "probkrnl.h"
71	#include "dev16.h"
72	#include "dev1632.h"
73	#include "vprntf16.h"
74	#include "log.h"
75	#include "options.h"
76	#include "errors.h"
77
78	/*******************************************************************************
79	* Global Variables *
80	* Note: must be inited or else we'll get BSS segment *
81	*******************************************************************************/
82
83
84	/*
85	* aImportTab defines the imported and overloaded OS/2 kernel functions.
86	* IMPORTANT: aImportTab has three sibling arrays, two in dev32\d32init.c (aulProc
87	* and aTstFakers), and the calltab.asm, which must match entry by entry.
88	* - obsolete warning -
89	* When adding/removing/shuffling items in aImportTab, aulProc and
90	* calltab.asm has to be updated immediately!
91	* Use the mkcalltab.exe to generate calltab.asm and aTstFakers.
92	* - obsolete warning -
93	* We'll now generate both of these files from this table.
94	*
95	*/
96	IMPORTKRNLSYM DATA16_GLOBAL aImportTab[NBR_OF_KRNLIMPORTS] =
97	{/* iFound cchName offObject usSel fType */
98	/* iObject achName achExtra ulAddress cProlog */
99	/* Overrides */
100	{FALSE, -1, 12, "_ldrOpenPath", "@20", -1, -1, -1, -1, EPT_PROC32 \| EPT_WRAPPED}, /* Must be [0]! See importTabInit. */
101	{FALSE, -1, 8, "_ldrRead", "@24", -1, -1, -1, -1, EPT_PROC32},
102	{FALSE, -1, 8, "_ldrOpen", "@12", -1, -1, -1, -1, EPT_PROC32},
103	{FALSE, -1, 9, "_ldrClose", "@4", -1, -1, -1, -1, EPT_PROC32},
104	{FALSE, -1, 12, "_LDRQAppType", "@8", -1, -1, -1, -1, EPT_PROC32},
105	{FALSE, -1, 20, "_ldrEnum32bitRelRecs", "@24", -1, -1, -1, -1, EPT_PROC32},
106	{FALSE, -1, 11, "g_tkExecPgm", "", -1, -1, -1, -1, EPT_PROC32},
107	{FALSE, -1, 15, "_tkStartProcess", "", -1, -1, -1, -1, EPT_PROC32},
108	{FALSE, -1, 12, "_LDRClearSem", "@0", -1, -1, -1, -1, EPT_PROCIMPORT32},
109	{FALSE, -1, 21, "_ldrASMpMTEFromHandle","@4", -1, -1, -1, -1, EPT_PROCIMPORT32},
110	{FALSE, -1, 14, "_ldrFindModule", "@16", -1, -1, -1, -1, EPT_PROCIMPORT32},
111	{FALSE, -1, 21, "_ldrValidateMteHandle","@4", -1, -1, -1, -1, EPT_PROCIMPORT32},
112	{FALSE, -1, 11, "_VMAllocMem", "@36", -1, -1, -1, -1, EPT_PROCIMPORT32},
113	{FALSE, -1, 10, "_VMFreeMem", "@12", -1, -1, -1, -1, EPT_PROCIMPORT32},
114	{FALSE, -1, 11, "_VMGetOwner", "@8", -1, -1, -1, -1, EPT_PROCIMPORT32},
115	{FALSE, -1, 16, "_VMObjHandleInfo", "@12", -1, -1, -1, -1, EPT_PROCIMPORT32},
116	{FALSE, -1, 16, "_VMMapDebugAlias", "@20", -1, -1, -1, -1, EPT_PROCIMPORT32},
117	{FALSE, -1, 17, "_KSEMRequestMutex", "@8", -1, -1, -1, -1, EPT_PROCIMPORT32},
118	{FALSE, -1, 17, "_KSEMReleaseMutex", "@4", -1, -1, -1, -1, EPT_PROCIMPORT32},
119	{FALSE, -1, 15, "_KSEMQueryMutex", "@8", -1, -1, -1, -1, EPT_PROCIMPORT32},
120	{FALSE, -1, 12, "_TKPidToPTDA", "@8", -1, -1, -1, -1, EPT_PROCIMPORT32},
121	{FALSE, -1, 9, "_TKSuBuff", "@16", -1, -1, -1, -1, EPT_PROCIMPORT32},
122	{FALSE, -1, 9, "_TKFuBuff", "@16", -1, -1, -1, -1, EPT_PROCIMPORT32},
123	{FALSE, -1, 11, "_TKFuBufLen", "@20", -1, -1, -1, -1, EPT_PROCIMPORT32},
124	{FALSE, -1, 11, "_TKSuFuBuff", "@16", -1, -1, -1, -1, EPT_PROCIMPORT32},
125	{FALSE, -1, 11, "f_FuStrLenZ", "", -1, -1, -1, -1, EPT_PROCIMPORT16},
126	{FALSE, -1, 10, "f_FuStrLen", "", -1, -1, -1, -1, EPT_PROCIMPORT16},
127	{FALSE, -1, 8, "f_FuBuff", "", -1, -1, -1, -1, EPT_PROCIMPORT16},
128	{FALSE, -1, 12, "_SftFileSize", "@8", -1, -1, -1, -1, EPT_PROCIMPORT32},
129	{FALSE, -1, 16, "_ldrpFileNameBuf", "", -1, -1, -1, -1, EPT_VARIMPORT32},
130	{FALSE, -1, 7, "_LdrSem", "", -1, -1, -1, -1, EPT_VARIMPORT32},
131	{FALSE, -1, 8, "_pTCBCur", "", -1, -1, -1, -1, EPT_VARIMPORT16},
132	{FALSE, -1, 9, "_pPTDACur", "", -1, -1, -1, -1, EPT_VARIMPORT16},
133	{FALSE, -1, 10, "ptda_start", "", -1, -1, -1, -1, EPT_VARIMPORT16},
134	{FALSE, -1, 12, "ptda_environ", "", -1, -1, -1, -1, EPT_VARIMPORT16},
135	{FALSE, -1, 12, "ptda_ptdasem", "", -1, -1, -1, -1, EPT_VARIMPORT16},
136	{FALSE, -1, 11, "ptda_handle", "", -1, -1, -1, -1, EPT_VARIMPORT16},
137	{FALSE, -1, 11, "ptda_module", "", -1, -1, -1, -1, EPT_VARIMPORT16},
138	{FALSE, -1, 18, "ptda_pBeginLIBPATH", "", -1, -1, -1, -1, EPT_VARIMPORT16},
139	{FALSE, -1, 14, "SecPathFromSFN", "", -1, -1, -1, -1, EPT_PROCIMPORTNR32},
140	#if 0 /* not used */
141	{FALSE, -1, 9, "_KSEMInit", "@12", -1, -1, -1, -1, EPT_PROCIMPORT32},
142	{FALSE, -1, 10, "_IOSftOpen", "@20", -1, -1, -1, -1, EPT_PROCIMPORT32},
143	{FALSE, -1, 11, "_IOSftClose", "@4", -1, -1, -1, -1, EPT_PROCIMPORT32},
144	{FALSE, -1, 15, "_IOSftTransPath", "@4", -1, -1, -1, -1, EPT_PROCIMPORT32},
145	{FALSE, -1, 12, "_IOSftReadAt", "@20", -1, -1, -1, -1, EPT_PROCIMPORT32},
146	{FALSE, -1, 13, "_IOSftWriteAt", "@20", -1, -1, -1, -1, EPT_PROCIMPORT32},
147	{FALSE, -1, 11, "_LDRLibPath", "", -1, -1, -1, -1, EPT_VARIMPORT32},
148	#endif
149	#if 0/* experimenting...*/
150	{FALSE, -1, 14, "_ldrSetVMflags", "@16", -1, -1, -1, -1, EPT_PROC32},
151	#endif
152	};
153
154	/**
155	* szSymbolFile holds the name of the symbol file used.
156	*
157	*/
158	char DATA16_GLOBAL szSymbolFile[60] = {0};
159
160	/**
161	* iProc holds the number of the procedure which failed during verify.
162	*/
163	int DATA16_GLOBAL iProc = -1; /* The procedure number which failed Verify. */
164
165
166
167	/*
168	* privat data
169	*/
170	static char * DATA16_INIT apszSym[] =
171	{
172	{"c:\\os2krnl.sym"}, /* usual for debugkernel */
173	{"c:\\os2\\pdpsi\\pmdf\\warp4\\os2krnlr.sym"}, /* warp 4 */
174	{"c:\\os2\\pdpsi\\pmdf\\warp4\\os2krnld.sym"}, /* warp 4 */
175	{"c:\\os2\\pdpsi\\pmdf\\warp4\\os2krnlb.sym"}, /* warp 4 */
176	{"c:\\os2\\pdpsi\\pmdf\\warp45_u\\os2krnlr.sym"}, /* warp 45 */
177	{"c:\\os2\\pdpsi\\pmdf\\warp45_u\\os2krnld.sym"}, /* warp 45 */
178	{"c:\\os2\\pdpsi\\pmdf\\warp45_u\\os2krnlb.sym"}, /* warp 45 */
179	{"c:\\os2\\pdpsi\\pmdf\\warp45_s\\os2krnlr.sym"}, /* warp 45 */
180	{"c:\\os2\\pdpsi\\pmdf\\warp45_s\\os2krnld.sym"}, /* warp 45 */
181	{"c:\\os2\\pdpsi\\pmdf\\warp45_s\\os2krnlb.sym"}, /* warp 45 */
182	{"c:\\os2\\system\\trace\\os2krnl.sym"}, /* warp 3 ?*/
183	{"c:\\os2\\system\\pmdf\\os2krnlr.sym"}, /* warp 3 ?*/
184	{"c:\\os2krnlr.sym"}, /* custom */
185	{"c:\\os2krnlh.sym"}, /* custom */
186	{"c:\\os2krnld.sym"}, /* custom */
187	NULL
188	};
189
190	/* Result from GetKernelInfo/ReadOS2Krnl. */
191	unsigned char DATA16_INIT cObjects = 0;
192	POTE DATA16_INIT paKrnlOTEs = NULL;
193
194
195	/*
196	*
197	*/
198	static struct
199	{
200	short sErr;
201	const char *pszMsg;
202	} DATA16_INIT aErrorMsgs[] =
203	{
204	{ERROR_PROB_KRNL_OPEN_FAILED, "Krnl: Failed to open kernel file."},
205	{ERROR_PROB_KRNL_SEEK_SIZE, "Krnl: Failed to seek to end to of file."},
206	{ERROR_PROB_KRNL_SEEK_FIRST, "Krnl: Failed to start of file."},
207	{ERROR_PROB_KRNL_READ_FIRST, "Krnl: Failed to read (first)."},
208	{ERROR_PROB_KRNL_READ_NEXT, "Krnl: Failed to read."},
209	{ERROR_PROB_KRNL_TAG_NOT_FOUND, "Krnl: Build level tag was not found."},
210	{ERROR_PROB_KRNL_INV_SIGANTURE, "Krnl: Invalid build level signature."},
211	{ERROR_PROB_KRNL_INV_BUILD_NBR, "Krnl: Invalid build level number."},
212	{ERROR_PROB_KRNL_BUILD_VERSION, "Krnl: Invalid build level version."},
213	{ERROR_PROB_KRNL_MZ_SEEK, "Krnl: Failed to seek to start of file. (MZ)"},
214	{ERROR_PROB_KRNL_MZ_READ, "Krnl: Failed to read MZ header."},
215	{ERROR_PROB_KRNL_NEOFF_INVALID, "Krnl: Invalid new-header offset in MZ header."},
216	{ERROR_PROB_KRNL_NEOFF_SEEK, "Krnl: Failed to seek to new-header offset."},
217	{ERROR_PROB_KRNL_LX_READ, "Krnl: Failed to read LX header."},
218	{ERROR_PROB_KRNL_LX_SIGNATURE, "Krnl: Invalid LX header signature."},
219	{ERROR_PROB_KRNL_OBJECT_CNT, "Krnl: Object count don't match the running kernel."},
220	{ERROR_PROB_KRNL_OBJECT_CNR_10, "Krnl: Less than 10 objects - not a valid kernel file!"},
221	{ERROR_PROB_KRNL_OTE_SEEK, "Krnl: Failed to seek to OTEs."},
222	{ERROR_PROB_KRNL_OTE_READ, "Krnl: Failed to read OTEs."},
223	{ERROR_PROB_KRNL_OTE_SIZE_MIS, "Krnl: Size of a OTE didn't match the running kernel."},
224
225	/*
226	* ProbeSymFile error messages + some extra ones.
227	*/
228	{ERROR_PROB_SYM_FILE_NOT_FOUND, "Sym: Symbol file was not found."},
229	{ERROR_PROB_SYM_READERROR, "Sym: Read failed."},
230	{ERROR_PROB_SYM_INVALID_MOD_NAME, "Sym: Invalid module name (not OS2KRNL)."},
231	{ERROR_PROB_SYM_SEGS_NE_OBJS, "Sym: Number of segments don't match the object count of the kernel."},
232	{ERROR_PROB_SYM_SEG_DEF_SEEK, "Sym: Failed to seek to a segment definition."},
233	{ERROR_PROB_SYM_SEG_DEF_READ, "Sym: Failed to read a segment definition."},
234	{ERROR_PROB_SYM_IMPORTS_NOTFOUND, "Sym: Some of the imports wasn't found."},
235	{ERROR_PROB_SYM_V_PROC_NOT_FND, "Sym: Verify failed: Procedure not found."},
236	{ERROR_PROB_SYM_V_OBJ_OR_ADDR, "Sym: Verify failed: Invalid object or address."},
237	{ERROR_PROB_SYM_V_ADDRESS, "Sym: Verify failed: Invalid address."},
238	{ERROR_PROB_SYM_V_PROLOG, "Sym: Verify failed: Invalid prolog."},
239	{ERROR_PROB_SYM_V_NOT_IMPL, "Sym: Verify failed: Not implemented."},
240	{ERROR_PROB_SYM_V_GETOS2KRNL, "GetOs2Krnl: failed."},
241	{ERROR_PROB_SYM_V_NO_SWAPMTE, "GetOs2Krnl: No Swap MTE."},
242	{ERROR_PROB_SYM_V_OBJECTS, "GetOs2Krnl: Too many objects."},
243	{ERROR_PROB_SYM_V_OBJECT_TABLE, "GetOs2Krnl: No object table."},
244	{ERROR_PROB_SYM_V_BUILD_INFO, "GetOs2Krnl: Build info not found."},
245	{ERROR_PROB_SYM_V_INVALID_BUILD, "GetOs2Krnl: Unsupported build."},
246	{ERROR_PROB_SYM_V_VERIFY, "importTabInit: Import failed."},
247	{ERROR_PROB_SYM_V_IPE, "importTabInit: Internal-Processing-Error."},
248	{ERROR_PROB_SYM_V_HEAPINIT, "R0Init32: HeapInit Failed."},
249	{ERROR_PROB_SYM_V_D32_LDR_INIT, "R0Init32: ldrInit Failed."},
250
251	{ERROR_PROB_SYMDB_KRNL_NOT_FOUND, "SymDB: Kernel was not found."}
252	};
253
254	/*
255	* Fake data for Ring-3 testing.
256	*/
257	#ifdef R3TST
258	USHORT DATA16_INIT usFakeVerMajor = 0;
259	USHORT DATA16_INIT usFakeVerMinor = 0;
260	#ifdef R3TST
261	static DATA16_INIT ach[11] = {0}; /* works around compiler/linker bug */
262	#endif
263	#endif
264
265
266	/*******************************************************************************
267	* Internal Functions *
268	*******************************************************************************/
269	/* File an output replacements */
270	HFILE fopen(const char * pszFilename, const char * pszIgnored);
271	int fread(void * pvBuffer, USHORT cbBlock, USHORT cBlock, HFILE hFile);
272	int fseek(HFILE hfile, signed long off, int iOrg);
273	unsigned long fsize(HFILE hFile);
274
275	/* C-library replacements and additions. */
276	void kmemcpy(char psz1, const char psz2, int cch);
277	char * kstrstr(const char psz1, const char psz2);
278	int kstrcmp(const char psz1, const char psz2);
279	int kstrncmp(const char psz1, const char psz2, int cch);
280	int kstrnicmp(const char psz1, const char psz2, int cch);
281	int kstrlen(const char *psz);
282	char * kstrcpy(char * pszTarget, const char * pszSource);
283	int kargncpy(char pszTarget, const char pszArg, unsigned cchMaxlen);
284
285	/* Workers */
286	int LookupKrnlEntry(unsigned short usBuild, unsigned short fKernel, unsigned char cObjects);
287	int VerifyPrologs(void);
288	int ProbeSymFile(const char *pszFilename);
289	int GetKernelInfo(void);
290
291	/* Ouput */
292	void ShowResult(int rc);
293
294	/* Others used while debugging in R3. */
295	int VerifyKernelVer(void);
296	int ReadOS2Krnl(char *pszFilename);
297	int ReadOS2Krnl2(HFILE hKrnl, unsigned long cbKrnl);
298
299
300
301	/*******************************************************************************
302	* Implementation of Internal Helper Functions *
303	*******************************************************************************/
304
305	/**
306	* Quick implementation of fopen.
307	* @param pszFilename name of file to open (sz)
308	* @param pszIgnored whatever - it is ignored
309	* @return Handle to file. (not pointer to a FILE stream as in C-library)
310	* @remark binary and readonly is assumed!
311	*/
312	HFILE fopen(const char * pszFilename, const char * pszIgnored)
313	{
314	HFILE hFile = 0;
315	USHORT rc;
316	unsigned short Action = 0;
317
318	rc = DosOpen(
319	(char*)pszFilename,
320	&hFile,
321	&Action,
322	0,
323	FILE_NORMAL,
324	OPEN_ACTION_FAIL_IF_NEW \| OPEN_ACTION_OPEN_IF_EXISTS,
325	OPEN_SHARE_DENYNONE + OPEN_ACCESS_READONLY,
326	NULL);
327
328	pszIgnored = pszIgnored;
329	return hFile;
330	}
331
332
333	/**
334	* fread emulation
335	* @returns Number of blocks read.
336	* @param pvBuffer Buffer to read into
337	* @param cbBlock Blocksize
338	* @param cBlock Block count
339	* @param hFile Handle to file (HFILE)
340	*/
341	int fread(void * pvBuffer, USHORT cbBlock, USHORT cBlock, HFILE hFile)
342	{
343	USHORT ulRead;
344	USHORT rc;
345
346	rc = DosRead(hFile, pvBuffer, (USHORT)(cbBlock*cBlock), &ulRead);
347	if (rc == 0)
348	rc = (USHORT)cBlock;
349	else
350	rc = 0;
351
352	return rc;
353	}
354
355
356	/**
357	* fseek emultation
358	* @returns Same as DosChgFilePtr
359	* @param hFile Filehandle
360	* @param off offset into file from origin
361	* @param org origin
362	*/
363	int fseek(HFILE hFile, signed long off, int iOrg)
364	{
365	ULONG ul;
366	return (int)DosChgFilePtr(hFile, off, iOrg, &ul);
367	}
368
369
370	/**
371	* Get filesize in bytes.
372	* @returns Filesize.
373	* @param hFile Filehandle
374	* @remark This function sets the file position to end of file.
375	*/
376	unsigned long fsize(HFILE hFile)
377	{
378	USHORT rc;
379	unsigned long cb;
380
381	rc = DosChgFilePtr(hFile, 0, FILE_END, &cb);
382
383	return cb;
384	}
385
386
387	/**
388	* kmemcpy - memory copy - slow!
389	* @param psz1 target
390	* @param psz2 source
391	* @param cch length
392	*/
393	void kmemcpy(char psz1, const char psz2, int cch)
394	{
395	while (cch-- != 0)
396	psz1++ = psz2++;
397	}
398
399
400	/**
401	* Finds psz2 in psz2.
402	* @returns Pointer to occurence of psz2 in psz1.
403	* @param psz1 String to be search.
404	* @param psz2 Substring to search for.
405	* @author knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
406	*/
407	char kstrstr(const char psz1, const char *psz2)
408	{
409	while (*psz1 != '\0')
410	{
411	register int i = 0;
412	while (psz2[i] != '\0' && psz1[i] == psz2[i])
413	i++;
414
415	/* found it? */
416	if (psz2[i] == '\0')
417	return (char*)psz1;
418	if (psz1[i] == '\0' )
419	break;
420	psz1++;
421	}
422
423	return NULL;
424	}
425
426
427	#if 0 /* not in use */
428	/**
429	* kstrcmp - String compare
430	* @returns 0 - equal else !0
431	* @param psz1 String 1
432	* @param psz2 String 2
433	*/
434	int kstrcmp(const char psz1, const char psz2);
435	{
436	while (psz1 == psz2 && psz1 != '\0' && psz2 != '\0')
437	{
438	psz1++;
439	psz2++;
440	}
441	return psz1 - psz2;
442	}
443	#endif
444
445
446	/**
447	* kstrncmp - String 'n' compare.
448	* @returns 0 - equal else !0
449	* @param p1 String 1
450	* @param p2 String 2
451	* @param len length
452	*/
453	int kstrncmp(register const char psz1, register const char psz2, int cch)
454	{
455	int i = 0;
456	while (i < cch && psz1 == psz2 && psz1 != '\0' && psz2 != '\0')
457	{
458	psz1++;
459	psz2++;
460	i++;
461	}
462
463	return i - cch;
464	}
465
466
467	#if 0 /* not in use */
468	/**
469	* kstrnicmp - String 'n' compare, case-insensitive.
470	* @returns 0 - equal else !0
471	* @param p1 String 1
472	* @param p2 String 2
473	* @param len length
474	*/
475	int kstrnicmp(const char psz1, const char psz2, int cch)
476	{
477	register char ch1, ch2;
478
479	do
480	{
481	ch1 = *psz1++;
482	if (ch1 >= 'A' && ch1 <= 'Z')
483	ch1 += 'a' - 'A'; /* to lower case */
484	ch2 = *psz2++;
485	if (ch2 >= 'A' && ch2 <= 'Z')
486	ch2 += 'a' - 'A'; /* to lower case */
487	} while (--cch > 0 && ch1 == ch2 && ch1 != '\0' && ch2 != '\0');
488
489	return ch1 - ch2;
490	}
491	#endif
492
493
494	/**
495	* kstrlen - String length.
496	* @returns Length of the string.
497	* @param psz Pointer to string.
498	* @status completely implemented and tested.
499	* @author knut st. osmundsen
500	*/
501	int kstrlen(register const char * psz)
502	{
503	register int cch = 0;
504	while (*psz++ != '\0')
505	cch++;
506	return cch;
507	}
508
509
510	/**
511	* String copy (strcpy).
512	* @returns Pointer to target string.
513	* @param pszTarget Target string.
514	* @param pszSource Source string.
515	* @author knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
516	*/
517	char * kstrcpy(char * pszTarget, register const char * pszSource)
518	{
519	register char *psz = pszTarget;
520
521	while (*pszSource != '\0')
522	psz++ = pszSource++;
523	*psz = '\0';
524	return pszTarget;
525	}
526
527
528
529
530	/**
531	* Copy an argument to a buffer. Ie. "-K[=\|:]c:\os2krnl ....". Supports quotes
532	* @returns Number of chars of pszArg that has been processed.
533	* @param pszTarget - pointer to target buffer.
534	* @param pszArg - pointer to source argument string.
535	* @param cchMaxlen - maximum chars to copy.
536	*/
537	int kargncpy(char * pszTarget, const char * pszArg, unsigned cchMaxlen)
538	{
539	int i = 0;
540	int fQuote = FALSE;
541
542	/* skip option word/letter */
543	while (pszArg != '\0' && pszArg != ' ' && *pszArg != ':' &&
544	pszArg != '=' && pszArg != '-' && *pszArg != '/')
545	{
546	pszArg++;
547	i++;
548	}
549
550	if (pszArg == ' ' \|\| pszArg == '-' \|\| pszArg == '/' \|\| pszArg == '\0')
551	return 0;
552
553
554	do
555	{
556	pszArg++;
557	i++;
558	} while (pszArg != '\0' && pszArg == ' ');
559
560	/* copy maxlen or less */
561	/* check for quotes */
562	if (*pszArg == '"')
563	{
564	fQuote = TRUE;
565	pszArg++;
566	i++;
567	}
568	/* copy loop */
569	while (cchMaxlen > 1 && (fQuote ? pszArg != '"' : pszArg != ' ') && *pszArg != '\0')
570	{
571	pszTarget++ = pszArg++;
572	i++;
573	cchMaxlen--;
574	}
575
576	/* terminate pszTarget */
577	pszTarget = '\0';
578
579	return i;
580	}
581
582
583	/**
584	* Get the message text for an error message.
585	* @returns Pointer to error text. NULL if not found.
586	* @param sErr Error code id.
587	* @status completely implemented.
588	* @author knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
589	*/
590	const char * GetErrorMsg(short sErr)
591	{
592	int i;
593	for (i = 0; i < sizeof(aErrorMsgs) / sizeof(aErrorMsgs[0]); i++)
594	{
595	if (aErrorMsgs[i].sErr == sErr)
596	return aErrorMsgs[i].pszMsg;
597	}
598	return NULL;
599	}
600
601
602
603	/*******************************************************************************
604	* Implementation Of The Important Functions *
605	*******************************************************************************/
606	/**
607	* Checks if this kernel is within the kernel symbol database.
608	* If an entry for the kernel is found, the data is copied from the
609	* database entry to aImportTab.
610	* @returns NO_ERROR on succes (0)
611	* 1 if not found.
612	* Error code on error.
613	* @param usBuild Build level.
614	* @param fKernel Kernel (type) flags. (KF_* from options.h)
615	* @param cObjects Count of object in the running kernel.
616	* @sketch Loop thru the table.
617	* @status completely implemented.
618	* @author knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
619	*/
620	int LookupKrnlEntry(unsigned short usBuild, unsigned short fKernel, unsigned char cObjects)
621	{
622	int i;
623
624	/*
625	* Loop tru the DB entries until a NULL pointer is found.
626	*/
627	for (i = 0; aKrnlSymDB[i].usBuild != 0; i++)
628	{
629	if ( aKrnlSymDB[i].usBuild == usBuild
630	&& aKrnlSymDB[i].fKernel == fKernel
631	&& aKrnlSymDB[i].cObjects == cObjects)
632	{ /* found matching entry! */
633	int j;
634	int rc;
635	register PKRNLDBENTRY pEntry = &aKrnlSymDB[i];
636
637	dprintf(("LookUpKrnlEntry - found entry for this kernel!\n"));
638	kstrcpy(szSymbolFile, "Win32k Symbol Database");
639
640	/*
641	* Copy symbol data from the DB to aImportTab.
642	*/
643	for (j = 0; j < NBR_OF_KRNLIMPORTS; j++)
644	{
645	aImportTab[j].offObject = pEntry->aSyms[j].offObject;
646	aImportTab[j].iObject = pEntry->aSyms[j].iObject;
647	aImportTab[j].ulAddress = paKrnlOTEs[pEntry->aSyms[j].iObject].ote_base
648	+ pEntry->aSyms[j].offObject;
649	aImportTab[j].usSel = paKrnlOTEs[pEntry->aSyms[j].iObject].ote_sel;
650	aImportTab[j].fFound = (char)((aImportTab[j].offObject != 0xFFFFFFFFUL) ? 1 : 0);
651	dprintf((" %-3d addr=0x%08lx off=0x%08lx %s\n",
652	j, aImportTab[j].ulAddress, aImportTab[j].offObject,
653	aImportTab[j].achName));
654	}
655
656	/* Verify prologs*/
657	rc = VerifyPrologs();
658
659	/* set sym name on success or complain on error */
660	if (rc != 0)
661	{
662	printf16("Warning: The Win32k Symbol Database entry found.\n"
663	" But, VerifyPrologs() returned rc=0x%x and iProc=%d\n", rc, iProc);
664	DosSleep(3000);
665	}
666
667	return rc;
668	}
669	}
670
671	/* not found */
672	return ERROR_PROB_SYMDB_KRNL_NOT_FOUND;
673	}
674
675
676	/**
677	* Verifies the that the addresses in aImportTab are valid.
678	* This is done at Ring-0 of course.
679	* @returns NO_ERROR (ie. 0) on success. iProc = -1
680	* The appropriate OS/2 or Win32k return code on success. iProc
681	* is set to the failing procedure (if appliable).
682	*/
683	int VerifyPrologs(void)
684	{
685	#if !defined(EXTRACT)
686	APIRET rc;
687	HFILE hDev0 = 0;
688	USHORT usAction = 0;
689
690	/* Set the failing procedure number to -1. */
691	iProc = -1;
692
693	/* Open the elf device driver. */
694	rc = DosOpen("\\dev\\elf$", &hDev0, &usAction, 0UL, FILE_NORMAL,
695	OPEN_ACTION_FAIL_IF_NEW \| OPEN_ACTION_OPEN_IF_EXISTS,
696	OPEN_SHARE_DENYNONE \| OPEN_ACCESS_READONLY,
697	0UL);
698	if (rc == NO_ERROR)
699	{
700	D16VERIFYIMPORTTABDATA Data = {0};
701
702	/* Issue the VerifyImportTab IOCtl call. */
703	rc = DosDevIOCtl(&Data, "", D16_IOCTL_VERIFYIMPORTTAB, D16_IOCTL_CAT, hDev0);
704	DosClose(hDev0);
705	if (rc == NO_ERROR)
706	{
707	if (Data.usRc != NO_ERROR)
708	{
709	/* set the appropriate return values. */
710	rc = (Data.usRc & ERROR_D32_ERROR_MASK) + ERROR_PROB_SYM_D32_FIRST;
711	if (Data.usRc & ERROR_D32_PROC_FLAG)
712	iProc = (Data.usRc & ERROR_D32_PROC_MASK) >> ERROR_D32_PROC_SHIFT;
713	}/* else success */
714	}
715	else
716	{
717	dprintf(("DosDevIOCtl failed with rc=%d\n", rc));
718	DosSleep(3000);
719	}
720	}
721	else
722	{
723	dprintf(("DosOpen Failed with rc=%d\n", rc));
724	DosSleep(3000);
725	}
726
727	return rc;
728	#else
729	return 0;
730	#endif
731	}
732
733
734	/**
735	* Check a symbol file. Searches for the wanted entry-point addresses.
736	* @returns 0 on success - something else on failiure.
737	* @param pszFilename Name of file to probe.
738	* @precond Must be called after kernel-file is found and processed.
739	* @remark Error codes starts at -50.
740	*/
741	int ProbeSymFile(const char * pszFilename)
742	{
743	HFILE hSym; /* Filehandle */
744	int cLeftToFind; /* Symbols left to find */
745	unsigned long iSeg; /* Outer search loop: Segment number */
746	unsigned iSym; /* Middle search loop: Symbol number */
747	unsigned i; /* Inner search loop: ProcTab index */
748	int rc;
749
750	MAPDEF MapDef; /* Mapfile header */
751	SEGDEF SegDef; /* Segment header */
752	SYMDEF32 SymDef32; /* Symbol definition 32-bit */
753	SYMDEF16 SymDef16; /* Symbol definition 16-bit */
754	char achBuffer[256]; /* Name buffer */
755	unsigned long offSegment; /* Segment definition offset */
756	unsigned long offSymPtr; /* Symbol pointer(offset) offset */
757	unsigned short offSym; /* Symbol definition offset */
758
759
760	/*
761	* Open the symbol file
762	*/
763	hSym = fopen(pszFilename, "rb");
764	if (hSym==0)
765	{
766	dprintf(("Error opening file %s\n", pszFilename));
767	return ERROR_PROB_SYM_FILE_NOT_FOUND;
768	}
769	dprintf(("\nSuccessfully opened symbolfile: %s\n", pszFilename));
770
771
772	/*
773	* (Open were successfully.)
774	* Now read header and display it.
775	*/
776	rc = fread(&MapDef, sizeof(MAPDEF), 1, hSym);
777	if (!rc)
778	{ /* oops! read failed, close file and fail. */
779	fclose(hSym);
780	return ERROR_PROB_SYM_READERROR;
781	}
782	achBuffer[0] = MapDef.achModName[0];
783	fread(&achBuffer[1], 1, MapDef.cbModName, hSym);
784	achBuffer[MapDef.cbModName] = '\0';
785	dprintf(("*Module name: %s\n", achBuffer));
786	dprintf(("Segments: %d\nMaxSymbolLength: %d\n", MapDef.cSegs, MapDef.cbMaxSym));
787	dprintf(("*ppNextMap: 0x%x\n", MapDef.ppNextMap ));
788
789
790	/*
791	* Verify that the modulename of the symbol file is OS2KRNL.
792	*/
793	if (MapDef.cbModName == 7 && kstrncmp(achBuffer, "OS2KRNL", 7) != 0)
794	{ /* modulename was not OS2KRNL, fail. */
795	dprintf(("Modulename verify failed\n"));
796	fclose(hSym);
797	return ERROR_PROB_SYM_INVALID_MOD_NAME;
798	}
799
800
801	/*
802	* Verify that the number of segments is equal to the number objects in OS2KRNL.
803	*/
804	#ifndef EXTRACT
805	if (MapDef.cSegs != cObjects)
806	{ /* incorrect count of segments. */
807	dprintf(("Segment No. verify failed\n"));
808	fclose(hSym);
809	return ERROR_PROB_SYM_SEGS_NE_OBJS;
810	}
811	#endif /* !EXTRACT */
812
813
814	/*
815	* Reset ProcTab
816	*/
817	for (i = 0; i < NBR_OF_KRNLIMPORTS; i++)
818	{
819	aImportTab[i].fFound = 0;
820	#ifdef DEBUG
821	aImportTab[i].offObject = 0;
822	aImportTab[i].ulAddress = 0;
823	aImportTab[i].usSel = 0;
824	#endif
825	}
826
827
828	/*
829	* Fileoffset of the first segment.
830	* And set cLeftToFind.
831	*/
832	offSegment = SEGDEFOFFSET(MapDef);
833	cLeftToFind = NBR_OF_KRNLIMPORTS;
834
835	/*
836	* Search thru the entire file, segment by segment.
837	*
838	* ASSUME: last segment is the only 32-bit code segment.
839	*
840	*/
841	for (iSeg = 0; iSeg < MapDef.cSegs; iSeg++, offSegment = NEXTSEGDEFOFFSET(SegDef))
842	{
843	int fSegEPTBitType; /* Type of segment, 16 or 32 bit, expressed in EPT_XXBIT flags */
844	int fCode; /* Set if this is a code segment, else clear. */
845
846	/*
847	* Read the segment definition.
848	*/
849	if (fseek(hSym, offSegment, SEEK_SET))
850	{ /* Failed to seek to the segment definition, fail! */
851	fclose(hSym);
852	return ERROR_PROB_SYM_SEG_DEF_SEEK;
853	}
854	rc = fread(&SegDef, sizeof(SEGDEF), 1, hSym);
855	if (!rc)
856	{ /* Failed to read the segment definition, fail! */
857	fclose(hSym);
858	return ERROR_PROB_SYM_SEG_DEF_READ;
859	}
860
861	/*
862	* Some debugging info.
863	*/
864	achBuffer[0] = SegDef.achSegName[0];
865	fread(&achBuffer[1], 1, SegDef.cbSegName, hSym);
866	achBuffer[SegDef.cbSegName] = '\0';
867	dprintf(("Segment %.2li Flags=0x%02x cSymbols=0x%04x Name=%s\n",
868	iSeg, SegDef.bFlags, SegDef.cSymbols, &achBuffer[0]));
869
870	/*
871	* Determin segment bit type.
872	*/
873	fSegEPTBitType = SEG32BitSegment(SegDef) ? EPT_32BIT : EPT_16BIT;
874	fCode = kstrstr(achBuffer, "CODE") != NULL;
875
876	/*
877	* Search thru all the symbols in this segment
878	* while we look for the requested symbols in aImportTab.
879	*/
880	for (iSym = 0; iSym < SegDef.cSymbols && cLeftToFind; iSym++)
881	{
882	IMPORTKRNLSYM * pImport;
883	unsigned cchName;
884
885	/*
886	* Fileoffset of the current symbol.
887	* Set filepointer to that position.
888	* Read word (which is the offset of the symbol).
889	*/
890	offSymPtr = SYMDEFOFFSET(offSegment, SegDef, iSym);
891	rc = fseek(hSym, offSymPtr, SEEK_SET);
892	if (rc)
893	{ /* Symboloffset seek failed, try read next symbol. */
894	dprintf(("Warning: Seek failed (offSymPtr=%d, rc=%d)\n", offSymPtr, rc));
895	continue;
896	}
897	rc = fread(&offSym, sizeof(unsigned short int), 1, hSym);
898	if (!rc)
899	{ /* Symboloffset read failed, try read next symbol. */
900	dprintf(("Warning: read failed (offSymPtr=%d, rc=%d)\n", offSymPtr, rc));
901	continue;
902	}
903	rc = fseek(hSym, offSym + offSegment, SEEK_SET);
904	if (rc)
905	{ /* Symbol Seek failed, try read next symbol. */
906	dprintf(("Warning: Seek failed (offSym=%d, rc=%d)\n", offSym, rc));
907	continue;
908	}
909
910
911	/*
912	* Read symbol and symbolname.
913	*/
914	if (SegDef.bFlags & 0x01)
915	rc = fread(&SymDef32, sizeof(SYMDEF32), 1, hSym);
916	else
917	rc = fread(&SymDef16, sizeof(SYMDEF16), 1, hSym);
918	if (!rc)
919	{ /* Symbol read failed, try read next symbol */
920	dprintf(("Warning: Read(1) failed (offSym=%d, rc=%d)\n", offSym, rc));
921	continue;
922	}
923	achBuffer[0] = (SegDef.bFlags & 0x01) ? SymDef32.achSymName[0] : SymDef16.achSymName[0];
924	cchName = (SegDef.bFlags & 0x01) ? SymDef32.cbSymName : SymDef16.cbSymName;
925	rc = fread(&achBuffer[1], 1, cchName, hSym);
926	if (!rc)
927	{ /* Symbol read failed, try read next symbol */
928	dprintf(("Warning: Read(2) failed (offSym=%d, rc=%d)\n", offSym, rc));
929	continue;
930	}
931	achBuffer[cchName] = '\0';
932
933
934	/*
935	* Search proctable.
936	*/
937	for (i = 0, pImport = &aImportTab[0]; i < NBR_OF_KRNLIMPORTS; i++, pImport++)
938	{
939	if (!pImport->fFound /* Not allready found */
940	&& (pImport->fType & EPT_VARIMPORT ? !fCode : fCode) /* Don't look for code in a data segment */
941	&& pImport->cchName == cchName /* Equal name length */
942	&& kstrncmp(pImport->achName, achBuffer, cchName) == 0 /* Equal name */
943	)
944	{ /* Symbol was found */
945	pImport->offObject = (SegDef.bFlags & 0x01 ? SymDef32.wSymVal : SymDef16.wSymVal);
946	pImport->ulAddress = pImport->offObject + paKrnlOTEs[iSeg].ote_base;
947	pImport->iObject = (unsigned char)iSeg;
948	pImport->usSel = paKrnlOTEs[iSeg].ote_sel;
949	dprintf(("debug: base=%lx, size=%lx iSeg=%d\n", paKrnlOTEs[iSeg].ote_base, paKrnlOTEs[iSeg].ote_size, iSeg));
950
951	/* Paranoia test! */
952	#ifndef EXTRACT
953	if (pImport->offObject < paKrnlOTEs[iSeg].ote_size)
954	{
955	pImport->fFound = TRUE;
956	cLeftToFind--;
957	dprintf(("Found: %s at off 0x%lx addr 0x%lx, sel=0x%x\n",
958	pImport->achName, pImport->offObject,
959	pImport->ulAddress, pImport->usSel));
960	}
961	else/* test failed, continue on next symbol*/
962	dprintf(("Error: Paranoia test failed for %s\n", pImport->achName));;
963	#else
964	pImport->fFound = TRUE;
965	cLeftToFind--;
966	#endif /* !EXTRACT */
967	break;
968	}
969
970	} /* aImportTab for-loop */
971
972	} /* Symbol for-loop */
973
974	} /* Segment for-loop */
975
976	/*
977	* Close symbol file.
978	*/
979	fclose(hSym);
980
981	/*
982	* If not all procedures were found fail.
983	*/
984	for (i = 0; i < NBR_OF_KRNLIMPORTS; i++)
985	if (!aImportTab[i].fFound && !EPTNotReq(aImportTab[i]))
986	return ERROR_PROB_SYM_IMPORTS_NOTFOUND;
987
988	/*
989	* Verify function prologs and return.
990	*/
991	return VerifyPrologs();
992	}
993
994
995	/**
996	* Get kernelinformation (OTEs (object table entries), build, type, debug...)
997	* @returns 0 on success.
998	* options.ulBuild, fchType, fDebug, cObjects and paKrnlOTEs is set on successful return.
999	* Not 0 on error.
1000	*/
1001	int GetKernelInfo(void)
1002	{
1003	#if !defined(EXTRACT) /* This IOCtl is not available after inittime! */
1004	static KRNLINFO DATA16_INIT KrnlInfo = {0};
1005	APIRET rc;
1006	HFILE hDev0 = 0;
1007	USHORT usAction = 0;
1008
1009	/*
1010	* Issue an IOCtl to elf$ to query kernel information.
1011	*/
1012	rc = DosOpen("\\dev\\elf$", &hDev0, &usAction, 0UL, FILE_NORMAL,
1013	OPEN_ACTION_FAIL_IF_NEW \| OPEN_ACTION_OPEN_IF_EXISTS,
1014	OPEN_SHARE_DENYNONE \| OPEN_ACCESS_READONLY,
1015	0UL);
1016	if (rc == NO_ERROR)
1017	{
1018	rc = DosDevIOCtl(&KrnlInfo, "", D16_IOCTL_GETKRNLINFO, D16_IOCTL_CAT, hDev0);
1019	if (rc == NO_ERROR)
1020	{
1021	#ifdef DEBUG
1022	unsigned i;
1023	#endif
1024
1025	/*
1026	* Set the exported parameters
1027	*/
1028	options.ulBuild = KrnlInfo.ulBuild;
1029	options.fKernel = KrnlInfo.fKernel;
1030	cObjects = KrnlInfo.cObjects;
1031	paKrnlOTEs = &KrnlInfo.aObjects[0];
1032
1033	/*
1034	* If debugging probkrnl dump kernel OTEs.
1035	*/
1036	#ifdef DEBUG
1037	dprintf(("debug: kernel OTE:\n"));
1038	for (i = 0; i < cObjects; i++)
1039	dprintf(("debug: no.%2d base=%lx size=%lx sel=%x\n",
1040	i,
1041	paKrnlOTEs[i].ote_base,
1042	paKrnlOTEs[i].ote_size,
1043	paKrnlOTEs[i].ote_sel));
1044	#endif
1045	}
1046	DosClose(hDev0);
1047	}
1048
1049	if (rc != NO_ERROR)
1050	printf16("Failed to get kernel OTEs. rc=%d\n", rc);
1051
1052	return rc;
1053
1054	#else
1055	return 0;
1056	#endif
1057	}
1058
1059
1060	/**
1061	* Shows result of kernelprobing if not quiet or on error.
1062	* @param rc Return code.
1063	*/
1064	void ShowResult(int rc)
1065	{
1066	int i;
1067
1068	/*
1069	* Complain even if quiet on error
1070	*/
1071	if (!options.fQuiet \|\| rc != NO_ERROR)
1072	{
1073	printf16("Win32k - Odin32 support driver. (Built %s %s)\n",
1074	(NPSZ)szBuildTime, (NPSZ)szBuildDate);
1075
1076	/*
1077	* kernel stuff
1078	*/
1079	if (rc == NO_ERROR \|\| rc > ERROR_PROB_KRNL_LAST)
1080	printf16(" Build: %ld - v%d.%d\n",
1081	options.ulBuild, options.usVerMajor, options.usVerMinor);
1082	else if (rc >= ERROR_PROB_KRNL_FIRST)
1083	printf16(" Kernel probing failed with rc=%d.\n", rc);
1084	else
1085	printf16(" Failed before probing kernel.\n");
1086
1087	/*
1088	* symbol-file
1089	*/
1090	if (rc == NO_ERROR \|\| (rc > ERROR_PROB_SYM_LAST && szSymbolFile[0] != '\0'))
1091	printf16(" Found symbolfile: %s\n", (NPSZ)szSymbolFile);
1092	else if (rc >= ERROR_PROB_SYM_FIRST)
1093	printf16(" Failed to find symbolfile!\n");
1094	else
1095	printf16(" Failed before searching for symbolfile.\n");
1096
1097	/*
1098	* function listing
1099	*/
1100	if (options.fLogging)/* \|\| rc != NO_ERROR)*/
1101	{
1102	for (i = 0; i < NBR_OF_KRNLIMPORTS; i++)
1103	{
1104	printf16(" %-21s at ", aImportTab[i].achName);
1105	if (aImportTab[i].fFound)
1106	printf16("0x%08lx%s", aImportTab[i].ulAddress, (i % 2) == 0 ? "" : "\n");
1107	else
1108	printf16("not found!%s", (i % 2) == 0 ? "" : "\n");
1109	}
1110	if (i % 2) printf16("\n");
1111	}
1112
1113	/*
1114	* Display error code.
1115	*/
1116	if (rc != NO_ERROR)
1117	{
1118	const char *psz = GetErrorMsg(rc);
1119	printf16("ProbeKernel failed with rc=%d. iProc=%x\n", rc, iProc);
1120	if (psz) printf16("%s\n", psz);
1121	}
1122	}
1123	}
1124
1125
1126	/**
1127	* "main" function.
1128	* Note that the option -Noloader causes nothing to be done.
1129	* @returns 0 on success, something else on error.
1130	* @param pReqPack Pointer to init request packet
1131	* @remark
1132	*/
1133	int ProbeKernel(PRPINITIN pReqPack)
1134	{
1135	int rc;
1136	int i;
1137	int n;
1138	SEL selGIS;
1139	SEL selLIS;
1140	PGINFOSEG pGIS;
1141	PLINFOSEG pLIS;
1142	USHORT usBootDrive;
1143
1144	/----------------/
1145	/* parse InitArgs */
1146	/----------------/
1147	if (pReqPack != NULL && pReqPack->InitArgs != NULL)
1148	{
1149	n = kstrlen(pReqPack->InitArgs);
1150	for (i = 0; i < n; i++)
1151	{
1152	if ((pReqPack->InitArgs[i] == '/' \|\| pReqPack->InitArgs[i] == '-') && (i+1) < n)
1153	{
1154	i++;
1155	switch (pReqPack->InitArgs[i])
1156	{
1157	case 'n':
1158	case 'N': /* NoLoader */
1159	options.fNoLoader = TRUE;
1160	return 0;
1161
1162	case 'q':
1163	case 'Q': /* Quiet */
1164	options.fQuiet = TRUE;
1165	break;
1166
1167	case 's':
1168	case 'S': /* Symbol file */
1169	i++;
1170	if ( pReqPack->InitArgs[i] != 'c' && pReqPack->InitArgs[i] != 'C'
1171	&& pReqPack->InitArgs[i] != 'm' && pReqPack->InitArgs[i] != 'M'
1172	) /* -script and -smp is ignored */
1173	i += kargncpy(szSymbolFile, &pReqPack->InitArgs[i], sizeof(szSymbolFile));
1174	break;
1175
1176	case 'v':
1177	case 'V': /* Verbose */
1178	options.fQuiet = FALSE;
1179	break;
1180	}
1181	}
1182	}
1183	}
1184
1185	/---------------------/
1186	/* determin boot drive */
1187	/---------------------/
1188	rc = DosGetInfoSeg(&selGIS, &selLIS);
1189	if (rc != NO_ERROR)
1190	return rc;
1191
1192	pLIS = MAKEPLINFOSEG(selLIS);
1193	pGIS = MAKEPGINFOSEG(selGIS);
1194	usBootDrive = pGIS->bootdrive;
1195	#ifndef R3TST
1196	options.usVerMajor = pGIS->uchMajorVersion;
1197	options.usVerMinor = pGIS->uchMinorVersion;
1198	#else
1199	if (usFakeVerMajor == 0)
1200	{
1201	usFakeVerMajor = pGIS->uchMajorVersion;
1202	usFakeVerMinor = pGIS->uchMinorVersion;
1203	}
1204	options.usVerMajor = usFakeVerMajor;
1205	options.usVerMinor = usFakeVerMinor;
1206	#endif
1207	dprintf(("BootDrive: %d\n", usBootDrive));
1208
1209	/* set driveletter in constants strings */
1210	usBootDrive = (char)usBootDrive + (char)'a' - 1;
1211	for (i = 0; apszSym[i] != NULL; i++)
1212	apszSym[i][0] = (char)usBootDrive;
1213
1214	/-----------------/
1215	/* get kernel info */
1216	/-----------------/
1217	rc = GetKernelInfo();
1218
1219	/--------------/
1220	/* read symfile */
1221	/--------------/
1222	if (!rc)
1223	{
1224	rc = 1;
1225	if (szSymbolFile[0] != '\0')
1226	{
1227	rc = ProbeSymFile(szSymbolFile);
1228	if (rc)
1229	{
1230	printf16("Warning: Invalid symbol file specified. rc=%x iProc=%d\n"
1231	" Tries defaults.\n", rc, iProc);
1232	szSymbolFile[0] = '\0';
1233	DosSleep(3000);
1234	}
1235	}
1236	if (rc != NO_ERROR) /* if user sym failed or don't exists. */
1237	{
1238	/*
1239	* Check database - only if not a debug kernel!
1240	* You usually have a .sym-file when using a debug kernel.
1241	* (This is because I am unable to distinguish between half and
1242	* all strict kernels...)
1243	*/
1244	if ((options.fKernel & KF_DEBUG) \|\|
1245	(rc = LookupKrnlEntry((unsigned short)options.ulBuild,
1246	(unsigned short)options.fKernel,
1247	cObjects)
1248	) != NO_ERROR
1249	)
1250	{
1251	#if 1 /* ndef R3TST */
1252	APIRET rc2;
1253	/* search on disk */
1254	i = 0;
1255	while (apszSym[i] != NULL
1256	&& (rc2 = ProbeSymFile(apszSym[i])) != NO_ERROR
1257	)
1258	{
1259	i++;
1260	if (rc2 >= ERROR_PROB_SYM_D32_FIRST)
1261	rc = rc2;
1262	}
1263	if (rc2 == NO_ERROR)
1264	{
1265	kstrcpy(szSymbolFile, apszSym[i]);
1266	rc = NO_ERROR;
1267	}
1268	#endif
1269	}
1270	}
1271	}
1272
1273	/* Show the result and set return-value */
1274	dprintf(("rc=%d(0x%x); i=%d; iProc=%d\n", rc, rc, i, iProc));
1275	ShowResult(rc);
1276
1277	return rc;
1278	}
1279

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