kDepIDB.c@ 504

Last change on this file since 504 was 398, checked in by bird, 19 years ago
Bugfixing.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 22.7 KB

Line
1	/* $Id: kDepIDB.c 398 2006-01-13 04:00:35Z bird $ */
2	/** @file
3	*
4	* kDepIDB - Extract dependency information from a MS Visual C++ .idb file.
5	*
6	* Copyright (c) 2006 knut st. osmundsen <[email protected]>
7	*
8	*
9	* This file is part of kBuild.
10	*
11	* kBuild is free software; you can redistribute it and/or modify
12	* it under the terms of the GNU General Public License as published by
13	* the Free Software Foundation; either version 2 of the License, or
14	* (at your option) any later version.
15	*
16	* kBuild is distributed in the hope that it will be useful,
17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	* GNU General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with kBuild; if not, write to the Free Software
23	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24	*
25	*/
26
27
28	/*******************************************************************************
29	* Header Files *
30	*******************************************************************************/
31	#include <stdio.h>
32	#include <stdlib.h>
33	#include <string.h>
34	#include <errno.h>
35	#include <ctype.h>
36	#ifndef __WIN32__
37	# include <stdint.h>
38	#else
39	typedef unsigned char uint8_t;
40	typedef unsigned short uint16_t;
41	typedef unsigned int uint32_t;
42	#endif
43	#include "kDep.h"
44
45	#define OFFSETOF(type, member) ( (int)(void )&( ((type )(void *)0)->member) )
46
47	/#define DEBUG/
48	#ifdef DEBUG
49	#define dprintf(a) printf a
50	#define dump(pb, cb, offBase) hexdump(pb,cb,offBase)
51	#else
52	#define dprintf(a) do {} while (0)
53	#define dump(pb, cb, offBase) do {} while (0)
54	#endif
55
56
57	/*******************************************************************************
58	* Global Variables *
59	*******************************************************************************/
60	/** the executable name. */
61	static const char *argv0 = "";
62
63	#ifdef DEBUG
64	/**
65	* Performs a hexdump.
66	*/
67	static void hexdump(const uint8_t *pb, size_t cb, size_t offBase)
68	{
69	static const char szHex[16] = "0123456789abcdef";
70
71	const unsigned cchWidth = 16;
72	size_t off = 0;
73	while (off < cb)
74	{
75	unsigned i;
76	printf("%s%0x %04x:", off ? "\n" : "", sizeof(pb) 2, offBase + off, off);
77	for (i = 0; i < cchWidth && off + i < cb ; i++)
78	printf(off + i < cb ? !(i & 7) && i ? "-%02x" : " %02x" : " ", pb[i]);
79
80	while (i++ < cchWidth)
81	printf(" ");
82	printf(" ");
83
84	for (i = 0; i < cchWidth && off + i < cb; i++)
85	{
86	const uint8_t u8 = pb[i];
87	printf("%c", u8 < 127 && u8 >= 32 ? u8 : '.', 1);
88	}
89	off += cchWidth;
90	pb += cchWidth;
91	}
92	printf("\n");
93	}
94	#endif
95
96	/**
97	* Scans a stream (chunk of data really) for dependencies.
98	*
99	* @returns 0 on success.
100	* @returns !0 on failure.
101	* @param pbStream The stream bits.
102	* @param cbStream The size of the stream.
103	* @param pszPrefix The dependency prefix.
104	* @param cchPrefix The size of the prefix.
105	*/
106	static int ScanStream(uint8_t pbStream, size_t cbStream, const char pszPrefix, size_t cchPrefix)
107	{
108	const uint8_t *pbCur = pbStream;
109	size_t cbLeft = cbStream;
110	register char chFirst = *pszPrefix;
111	while (cbLeft > cchPrefix + 2)
112	{
113	if ( *pbCur != chFirst
114	\|\| memcmp(pbCur, pszPrefix, cchPrefix))
115	{
116	pbCur++;
117	cbLeft--;
118	}
119	else
120	{
121	size_t cchDep;
122	pbCur += cchPrefix;
123	cchDep = strlen(pbCur);
124	depAdd(pbCur, cchDep);
125	dprintf(("%05x: '%s'\n", pbCur - pbStream, pbCur));
126
127	pbCur += cchDep;
128	cbLeft -= cchDep + cchPrefix;
129	}
130	}
131
132	return 0;
133	}
134
135
136
137	/**
138	* Reads the file specified by the pInput file stream into memory.
139	* The size of the file is returned in *pcbFile if specified.
140	* The returned pointer should be freed by free().
141	*/
142	void ReadFileIntoMemory(FILE pInput, size_t *pcbFile)
143	{
144	void *pvFile;
145	long cbFile;
146	int rc = 0;
147
148	/*
149	* Figure out file size.
150	*/
151	if ( fseek(pInput, 0, SEEK_END) < 0
152	\|\| (cbFile = ftell(pInput)) < 0
153	\|\| fseek(pInput, 0, SEEK_SET))
154	{
155	fprintf(stderr, "%s: error: Failed to determin file size.\n", argv0);
156	return NULL;
157	}
158	if (pcbFile)
159	*pcbFile = cbFile;
160
161	/*
162	* Allocate memory and read the file.
163	*/
164	pvFile = malloc(cbFile + 1);
165	if (pvFile)
166	{
167	if (fread(pvFile, cbFile, 1, pInput))
168	{
169	((uint8_t *)pvFile)[cbFile] = '\0';
170	return pvFile;
171	}
172	fprintf(stderr, "%s: error: Failed to read %ld bytes.\n", argv0, cbFile);
173	free(pvFile);
174	}
175	else
176	fprintf(stderr, "%s: error: Failed to allocate %ld bytes (file mapping).\n", argv0, cbFile);
177	return NULL;
178	}
179
180
181
182	///////////////////////////////////////////////////////////////////////////////
183	//
184	//
185	// P D B 7 . 0
186	//
187	//
188	///////////////////////////////////////////////////////////////////////////////
189
190	/** A PDB 7.0 Page number. */
191	typedef uint32_t PDB70PAGE;
192	/** Pointer to a PDB 7.0 Page number. */
193	typedef PDB70PAGE *PPDB70PAGE;
194
195	/**
196	* A PDB 7.0 stream.
197	*/
198	typedef struct PDB70STREAM
199	{
200	/** The size of the stream. */
201	uint32_t cbStream;
202	} PDB70STREAM, *PPDB70STREAM;
203
204
205	/** The PDB 7.00 signature. */
206	#define PDB_SIGNATURE_700 "Microsoft C/C++ MSF 7.00\r\n\x1A" "DS\0\0"
207	/**
208	* The PDB 7.0 header.
209	*/
210	typedef struct PDB70HDR
211	{
212	/** The signature string. */
213	uint8_t szSignature[sizeof(PDB_SIGNATURE_700)];
214	/** The page size. */
215	uint32_t cbPage;
216	/** The start page. */
217	PDB70PAGE iStartPage;
218	/** The number of pages in the file. */
219	PDB70PAGE cPages;
220	/** The root stream directory. */
221	uint32_t cbRoot;
222	/** Unknown function, always 0. */
223	uint32_t u32Reserved;
224	/** The page index of the root page table. */
225	PDB70PAGE iRootPages;
226	} PDB70HDR, *PPDB70HDR;
227
228	/**
229	* The PDB 7.0 root directory.
230	*/
231	typedef struct PDB70ROOT
232	{
233	/** The number of streams */
234	uint32_t cStreams;
235	/** Array of streams. */
236	PDB70STREAM aStreams[1];
237	/* uint32_t aiPages[] */
238	} PDB70ROOT, *PPDB70ROOT;
239
240
241
242	static int Pdb70ValidateHeader(PPDB70HDR pHdr, size_t cbFile)
243	{
244	if (pHdr->cbPage * pHdr->cPages != cbFile)
245	{
246	fprintf(stderr, "%s: error: Bad PDB 2.0 header - cbPage * cPages != cbFile.\n", argv0);
247	return 1;
248	}
249	if (pHdr->iStartPage >= pHdr->cPages && pHdr->iStartPage <= 0)
250	{
251	fprintf(stderr, "%s: error: Bad PDB 2.0 header - iStartPage=%u cPages=%u.\n", argv0,
252	pHdr->iStartPage, pHdr->cPages);
253	return 1;
254	}
255	if (pHdr->iRootPages >= pHdr->cPages && pHdr->iRootPages <= 0)
256	{
257	fprintf(stderr, "%s: error: Bad PDB 2.0 header - iRootPages=%u cPage=%u.\n", argv0,
258	pHdr->iStartPage, pHdr->cPages);
259	return 1;
260	}
261	return 0;
262	}
263
264	static size_t Pdb70Align(PPDB70HDR pHdr, size_t cb)
265	{
266	if (cb == ~(uint32_t)0 \|\| !cb)
267	return 0;
268	return ((cb + pHdr->cbPage - 1) / pHdr->cbPage) * pHdr->cbPage;
269	}
270
271	static size_t Pdb70Pages(PPDB70HDR pHdr, size_t cb)
272	{
273	if (cb == ~(uint32_t)0 \|\| !cb)
274	return 0;
275	return (cb + pHdr->cbPage - 1) / pHdr->cbPage;
276	}
277
278	static void *Pdb70AllocAndRead(PPDB70HDR pHdr, size_t cb, PPDB70PAGE paiPageMap)
279	{
280	const size_t cbPage = pHdr->cbPage;
281	size_t cPages = Pdb70Pages(pHdr, cb);
282	uint8_t pbBuf = malloc(cPages cbPage + 1);
283	if (pbBuf)
284	{
285	size_t iPage = 0;
286	while (iPage < cPages)
287	{
288	size_t off = paiPageMap[iPage];
289	if (off < pHdr->cPages)
290	{
291	off *= cbPage;
292	memcpy(pbBuf + iPage * cbPage, (uint8_t *)pHdr + off, cbPage);
293	dump(pbBuf + iPage * cbPage, cbPage, off);
294	}
295	else
296	{
297	fprintf(stderr, "%s: warning: Invalid page index %u (max %u)!\n", argv0,
298	(unsigned)off, pHdr->cPages);
299	memset(pbBuf + iPage * cbPage, 0, cbPage);
300	}
301
302	iPage++;
303	}
304	pbBuf[cPages * cbPage] = '\0';
305	}
306	else
307	fprintf(stderr, "%s: error: failed to allocate %u bytes\n", argv0, cPages * cbPage + 1);
308	return pbBuf;
309	}
310
311	static PPDB70ROOT Pdb70AllocAndReadRoot(PPDB70HDR pHdr)
312	{
313	/*
314	* The tricky bit here is to find the right length.
315	* (Todo: Check if we can just use the stream size..)
316	*/
317	PPDB70PAGE piPageMap = (uint32_t )((uint8_t )pHdr + pHdr->iRootPages * pHdr->cbPage);
318	PPDB70ROOT pRoot = Pdb70AllocAndRead(pHdr, pHdr->cbRoot, piPageMap);
319	if (pRoot)
320	{
321	/* This stuff is probably unnecessary: */
322	/* size = stream header + array of stream. */
323	size_t cb = OFFSETOF(PDB70ROOT, aStreams[pRoot->cStreams]);
324	free(pRoot);
325	pRoot = Pdb70AllocAndRead(pHdr, cb, piPageMap);
326	if (pRoot)
327	{
328	/* size += page tables. */
329	unsigned iStream = pRoot->cStreams;
330	while (iStream-- > 0)
331	if (pRoot->aStreams[iStream].cbStream != ~(uint32_t)0)
332	cb += Pdb70Pages(pHdr, pRoot->aStreams[iStream].cbStream) * sizeof(PDB70PAGE);
333	free(pRoot);
334	pRoot = Pdb70AllocAndRead(pHdr, cb, piPageMap);
335	if (pRoot)
336	{
337	/* validate? */
338	return pRoot;
339	}
340	}
341	}
342	return NULL;
343	}
344
345	static void Pdb70AllocAndReadStream(PPDB70HDR pHdr, PPDB70ROOT pRoot, unsigned iStream, size_t pcbStream)
346	{
347	size_t cbStream = pRoot->aStreams[iStream].cbStream;
348	PPDB70PAGE paiPageMap;
349	if ( iStream >= pRoot->cStreams
350	\|\| cbStream == ~(uint32_t)0)
351	{
352	fprintf(stderr, "%s: error: Invalid stream %d\n", iStream);
353	return NULL;
354	}
355
356	paiPageMap = (PPDB70PAGE)&pRoot->aStreams[pRoot->cStreams];
357	while (iStream-- > 0)
358	if (pRoot->aStreams[iStream].cbStream != ~(uint32_t)0)
359	paiPageMap += Pdb70Pages(pHdr, pRoot->aStreams[iStream].cbStream);
360
361	if (pcbStream)
362	*pcbStream = cbStream;
363	return Pdb70AllocAndRead(pHdr, cbStream, paiPageMap);
364	}
365
366	static int Pdb70Process(uint8_t *pbFile, size_t cbFile)
367	{
368	PPDB70HDR pHdr = (PPDB70HDR)pbFile;
369	PPDB70ROOT pRoot;
370	unsigned iStream;
371	int rc = 0;
372	dprintf(("pdb70\n"));
373
374	/*
375	* Validate the header and read the root stream.
376	*/
377	if (Pdb70ValidateHeader(pHdr, cbFile))
378	return 1;
379	pRoot = Pdb70AllocAndReadRoot(pHdr);
380	if (!pRoot)
381	return 1;
382
383	/*
384	* Iterate the streams in the root and scan their content for
385	* dependencies.
386	*/
387	rc = 0;
388	for (iStream = 0; iStream < pRoot->cStreams && !rc; iStream++)
389	{
390	const size_t cbStream = Pdb70Align(pHdr, pRoot->aStreams[iStream].cbStream);
391	uint8_t *pbStream;
392	if ( pRoot->aStreams[iStream].cbStream == ~(uint32_t)0
393	\|\| !pRoot->aStreams[iStream].cbStream)
394	continue;
395	dprintf(("Stream #%d: %#x bytes (%#x aligned)\n", iStream, pRoot->aStreams[iStream].cbStream, cbStream));
396	pbStream = (uint8_t *)Pdb70AllocAndReadStream(pHdr, pRoot, iStream, NULL);
397	if (pbStream)
398	{
399	rc = ScanStream(pbStream, cbStream, "/mr/inversedeps/", sizeof("/mr/inversedeps/") - 1);
400	free(pbStream);
401	}
402	else
403	rc = 1;
404	}
405
406	free(pRoot);
407	return rc;
408	}
409
410
411
412	///////////////////////////////////////////////////////////////////////////////
413	//
414	//
415	// P D B 2 . 0
416	//
417	//
418	///////////////////////////////////////////////////////////////////////////////
419
420
421	/** A PDB 2.0 Page number. */
422	typedef uint16_t PDB20PAGE;
423	/** Pointer to a PDB 2.0 Page number. */
424	typedef PDB20PAGE *PPDB20PAGE;
425
426	/**
427	* A PDB 2.0 stream.
428	*/
429	typedef struct PDB20STREAM
430	{
431	/** The size of the stream. */
432	uint32_t cbStream;
433	/** Some unknown value. */
434	uint32_t u32Unknown;
435	} PDB20STREAM, *PPDB20STREAM;
436
437	/** The PDB 2.00 signature. */
438	#define PDB_SIGNATURE_200 "Microsoft C/C++ program database 2.00\r\n\x1A" "JG\0"
439	/**
440	* The PDB 2.0 header.
441	*/
442	typedef struct PDB20HDR
443	{
444	/** The signature string. */
445	uint8_t szSignature[sizeof(PDB_SIGNATURE_200)];
446	/** The page size. */
447	uint32_t cbPage;
448	/** The start page - whatever that is... */
449	PDB20PAGE iStartPage;
450	/** The number of pages in the file. */
451	PDB20PAGE cPages;
452	/** The root stream directory. */
453	PDB20STREAM RootStream;
454	/** The root page table. */
455	PDB20PAGE aiRootPageMap[1];
456	} PDB20HDR, *PPDB20HDR;
457
458	/**
459	* The PDB 2.0 root directory.
460	*/
461	typedef struct PDB20ROOT
462	{
463	/** The number of streams */
464	uint16_t cStreams;
465	/** Reserved or high part of cStreams. */
466	uint16_t u16Reserved;
467	/** Array of streams. */
468	PDB20STREAM aStreams[1];
469	} PDB20ROOT, *PPDB20ROOT;
470
471
472	static int Pdb20ValidateHeader(PPDB20HDR pHdr, size_t cbFile)
473	{
474	if (pHdr->cbPage * pHdr->cPages != cbFile)
475	{
476	fprintf(stderr, "%s: error: Bad PDB 2.0 header - cbPage * cPages != cbFile.\n", argv0);
477	return 1;
478	}
479	if (pHdr->iStartPage >= pHdr->cPages && pHdr->iStartPage <= 0)
480	{
481	fprintf(stderr, "%s: error: Bad PDB 2.0 header - cbPage * cPages != cbFile.\n", argv0);
482	return 1;
483	}
484	return 0;
485	}
486
487	static size_t Pdb20Pages(PPDB20HDR pHdr, size_t cb)
488	{
489	if (cb == ~(uint32_t)0 \|\| !cb)
490	return 0;
491	return (cb + pHdr->cbPage - 1) / pHdr->cbPage;
492	}
493
494	static void *Pdb20AllocAndRead(PPDB20HDR pHdr, size_t cb, PPDB20PAGE paiPageMap)
495	{
496	size_t cPages = Pdb20Pages(pHdr, cb);
497	uint8_t pbBuf = malloc(cPages pHdr->cbPage + 1);
498	if (pbBuf)
499	{
500	size_t iPage = 0;
501	while (iPage < cPages)
502	{
503	size_t off = paiPageMap[iPage];
504	off *= pHdr->cbPage;
505	memcpy(pbBuf + iPage * pHdr->cbPage, (uint8_t *)pHdr + off, pHdr->cbPage);
506	iPage++;
507	}
508	pbBuf[cPages * pHdr->cbPage] = '\0';
509	}
510	else
511	fprintf(stderr, "%s: error: failed to allocate %d bytes\n", argv0, cPages * pHdr->cbPage + 1);
512	return pbBuf;
513	}
514
515	static PPDB20ROOT Pdb20AllocAndReadRoot(PPDB20HDR pHdr)
516	{
517	/*
518	* The tricky bit here is to find the right length.
519	* (Todo: Check if we can just use the stream size..)
520	*/
521	PPDB20ROOT pRoot = Pdb20AllocAndRead(pHdr, sizeof(*pRoot), &pHdr->aiRootPageMap[0]);
522	if (pRoot)
523	{
524	/* size = stream header + array of stream. */
525	size_t cb = OFFSETOF(PDB20ROOT, aStreams[pRoot->cStreams]);
526	free(pRoot);
527	pRoot = Pdb20AllocAndRead(pHdr, cb, &pHdr->aiRootPageMap[0]);
528	if (pRoot)
529	{
530	/* size += page tables. */
531	unsigned iStream = pRoot->cStreams;
532	while (iStream-- > 0)
533	if (pRoot->aStreams[iStream].cbStream != ~(uint32_t)0)
534	cb += Pdb20Pages(pHdr, pRoot->aStreams[iStream].cbStream) * sizeof(PDB20PAGE);
535	free(pRoot);
536	pRoot = Pdb20AllocAndRead(pHdr, cb, &pHdr->aiRootPageMap[0]);
537	if (pRoot)
538	{
539	/* validate? */
540	return pRoot;
541	}
542	}
543	}
544	return NULL;
545
546	}
547
548	static void Pdb20AllocAndReadStream(PPDB20HDR pHdr, PPDB20ROOT pRoot, unsigned iStream, size_t pcbStream)
549	{
550	size_t cbStream = pRoot->aStreams[iStream].cbStream;
551	PPDB20PAGE paiPageMap;
552	if ( iStream >= pRoot->cStreams
553	\|\| cbStream == ~(uint32_t)0)
554	{
555	fprintf(stderr, "%s: error: Invalid stream %d\n", iStream);
556	return NULL;
557	}
558
559	paiPageMap = (PPDB20PAGE)&pRoot->aStreams[pRoot->cStreams];
560	while (iStream-- > 0)
561	if (pRoot->aStreams[iStream].cbStream != ~(uint32_t)0)
562	paiPageMap += Pdb20Pages(pHdr, pRoot->aStreams[iStream].cbStream);
563
564	if (pcbStream)
565	*pcbStream = cbStream;
566	return Pdb20AllocAndRead(pHdr, cbStream, paiPageMap);
567	}
568
569	static int Pdb20Process(uint8_t *pbFile, size_t cbFile)
570	{
571	PPDB20HDR pHdr = (PPDB20HDR)pbFile;
572	PPDB20ROOT pRoot;
573	unsigned iStream;
574	int rc = 0;
575
576	/*
577	* Validate the header and read the root stream.
578	*/
579	if (Pdb20ValidateHeader(pHdr, cbFile))
580	return 1;
581	pRoot = Pdb20AllocAndReadRoot(pHdr);
582	if (!pRoot)
583	return 1;
584
585	/*
586	* Iterate the streams in the root and scan their content for
587	* dependencies.
588	*/
589	rc = 0;
590	for (iStream = 0; iStream < pRoot->cStreams && !rc; iStream++)
591	{
592	uint8_t *pbStream;
593	if (pRoot->aStreams[iStream].cbStream == ~(uint32_t)0)
594	continue;
595	pbStream = (uint8_t *)Pdb20AllocAndReadStream(pHdr, pRoot, iStream, NULL);
596	if (pbStream)
597	{
598	rc = ScanStream(pbStream, pRoot->aStreams[iStream].cbStream, "/ipm/header/", sizeof("/ipm/header/") - 1);
599	free(pbStream);
600	}
601	else
602	rc = 1;
603	}
604
605	free(pRoot);
606	return rc;
607	}
608
609
610	/**
611	* Make an attempt at parsing a Visual C++ IDB file.
612	*/
613	static int ProcessIDB(FILE *pInput)
614	{
615	long cbFile;
616	char *pbFile;
617	char *pbHdr = PDB_SIGNATURE_200;
618	int rc = 0;
619
620	/*
621	* Read the file into memory.
622	*/
623	pbFile = (char *)ReadFileIntoMemory(pInput, &cbFile);
624	if (!pbFile)
625	return 1;
626
627	/*
628	* Figure out which parser to use.
629	*/
630	if (!memcmp(pbFile, PDB_SIGNATURE_700, sizeof(PDB_SIGNATURE_700)))
631	rc = Pdb70Process(pbFile, cbFile);
632	else if (!memcmp(pbFile, PDB_SIGNATURE_200, sizeof(PDB_SIGNATURE_200)))
633	rc = Pdb20Process(pbFile, cbFile);
634	else
635	{
636	fprintf(stderr, "%s: error: Doesn't recognize the header of the Visual C++ IDB file.\n", argv0);
637	rc = 1;
638	}
639
640	free(pbFile);
641	return rc;
642	}
643
644
645	static void usage(const char *argv0)
646	{
647	printf("syntax: %s -o <output> -t <target> [-f] [-s] <vc idb-file>\n", argv0);
648	}
649
650
651	int main(int argc, char *argv[])
652	{
653	int i;
654
655	/* Arguments. */
656	FILE *pOutput = NULL;
657	const char *pszOutput = NULL;
658	FILE *pInput = NULL;
659	const char *pszTarget = NULL;
660	int fStubs = 0;
661	int fFixCase = 0;
662	/* Argument parsing. */
663	int fInput = 0; /* set when we've found input argument. */
664
665	argv0 = argv[0];
666
667	/*
668	* Parse arguments.
669	*/
670	if (argc <= 1)
671	{
672	usage(argv[0]);
673	return 1;
674	}
675	for (i = 1; i < argc; i++)
676	{
677	if (argv[i][0] == '-')
678	{
679	switch (argv[i][1])
680	{
681	/*
682	* Output file.
683	*/
684	case 'o':
685	{
686	pszOutput = &argv[i][2];
687	if (pOutput)
688	{
689	fprintf(stderr, "%s: syntax error: only one output file!\n", argv[0]);
690	return 1;
691	}
692	if (!*pszOutput)
693	{
694	if (++i >= argc)
695	{
696	fprintf(stderr, "%s: syntax error: The '-o' argument is missing the filename.\n", argv[0]);
697	return 1;
698	}
699	pszOutput = argv[i];
700	}
701	if (pszOutput[0] == '-' && !pszOutput[1])
702	pOutput = stdout;
703	else
704	pOutput = fopen(pszOutput, "w");
705	if (!pOutput)
706	{
707	fprintf(stderr, "%s: error: Failed to create output file '%s'.\n", argv[0], pszOutput);
708	return 1;
709	}
710	break;
711	}
712
713	/*
714	* Target name.
715	*/
716	case 't':
717	{
718	if (pszTarget)
719	{
720	fprintf(stderr, "%s: syntax error: only one target!\n", argv[0]);
721	return 1;
722	}
723	pszTarget = &argv[i][2];
724	if (!*pszTarget)
725	{
726	if (++i >= argc)
727	{
728	fprintf(stderr, "%s: syntax error: The '-t' argument is missing the target name.\n", argv[0]);
729	return 1;
730	}
731	pszTarget = argv[i];
732	}
733	break;
734	}
735
736	/*
737	* Fix case.
738	*/
739	case 'f':
740	{
741	fFixCase = 1;
742	break;
743	}
744
745	/*
746	* Generate stubs.
747	*/
748	case 's':
749	{
750	fStubs = 1;
751	break;
752	}
753
754	/*
755	* Invalid argument.
756	*/
757	default:
758	fprintf(stderr, "%s: syntax error: Invalid argument '%s'.\n", argv[0], argv[i]);
759	usage(argv[0]);
760	return 1;
761	}
762	}
763	else
764	{
765	pInput = fopen(argv[i], "rb");
766	if (!pInput)
767	{
768	fprintf(stderr, "%s: error: Failed to open input file '%s'.\n", argv[0], argv[i]);
769	return 1;
770	}
771	fInput = 1;
772	}
773
774	/*
775	* End of the line?
776	*/
777	if (fInput)
778	{
779	if (++i < argc)
780	{
781	fprintf(stderr, "%s: syntax error: No arguments shall follow the input spec.\n", argv[0]);
782	return 1;
783	}
784	break;
785	}
786	}
787
788	/*
789	* Got all we require?
790	*/
791	if (!pInput)
792	{
793	fprintf(stderr, "%s: syntax error: No input!\n", argv[0]);
794	return 1;
795	}
796	if (!pOutput)
797	{
798	fprintf(stderr, "%s: syntax error: No output!\n", argv[0]);
799	return 1;
800	}
801	if (!pszTarget)
802	{
803	fprintf(stderr, "%s: syntax error: No target!\n", argv[0]);
804	return 1;
805	}
806
807	/*
808	* Do the parsing.
809	*/
810	i = ProcessIDB(pInput);
811
812	/*
813	* Write the dependecy file.
814	*/
815	if (!i)
816	{
817	depOptimize(fFixCase);
818	fprintf(pOutput, "%s:", pszTarget);
819	depPrint(pOutput);
820	if (fStubs)
821	depPrintStubs(pOutput);
822	}
823
824	/*
825	* Close the output, delete output on failure.
826	*/
827	if (!i && ferror(pOutput))
828	{
829	i = 1;
830	fprintf(stderr, "%s: error: Error writing to '%s'.\n", argv[0], pszOutput);
831	}
832	fclose(pOutput);
833	if (i)
834	{
835	if (unlink(pszOutput))
836	fprintf(stderr, "%s: warning: failed to remove output file '%s' on failure.\n", argv[0], pszOutput);
837	}
838
839	return i;
840	}
841

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source: kBuild/trunk/src/kDepIDB/kDepIDB.c@ 504

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