path.cpp@ 16684

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1	/* $Id: path.cpp 16516 2009-02-04 15:56:35Z vboxsync $ */
2	/** @file
3	* IPRT - Path Manipulation.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*
26	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
27	* Clara, CA 95054 USA or visit http://www.sun.com if you need
28	* additional information or have any questions.
29	*/
30
31
32	/*******************************************************************************
33	* Header Files *
34	*******************************************************************************/
35	#include <iprt/path.h>
36	#include <iprt/dir.h>
37	#include <iprt/param.h>
38	#include <iprt/string.h>
39	#include <iprt/assert.h>
40	#include <iprt/string.h>
41	#include <iprt/ctype.h>
42	#include <iprt/err.h>
43	#include <iprt/uni.h>
44	#include "internal/fs.h"
45	#include "internal/path.h"
46	#include "internal/process.h"
47
48
49	/**
50	* Strips the filename from a path. Truncates the given string in-place by overwriting the
51	* last path separator character with a null byte in a platform-neutral way.
52	*
53	* @param pszPath Path from which filename should be extracted, will be truncated.
54	* If the string contains no path separator, it will be changed to a "." string.
55	*/
56	RTDECL(void) RTPathStripFilename(char *pszPath)
57	{
58	char *psz = pszPath;
59	char *pszLastSep = NULL;
60
61
62	for (;; psz++)
63	{
64	switch (*psz)
65	{
66	/* handle separators. */
67	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
68	case ':':
69	pszLastSep = psz + 1;
70	if (RTPATH_IS_SLASH(psz[1]))
71	pszPath = psz + 1;
72	else
73	pszPath = psz;
74	break;
75
76	case '\\':
77	#endif
78	case '/':
79	pszLastSep = psz;
80	break;
81
82	/* the end */
83	case '\0':
84	if (!pszLastSep)
85	{
86	/* no directory component */
87	pszPath[0] = '.';
88	pszPath[1] = '\0';
89	}
90	else if (pszLastSep == pszPath)
91	{
92	/* only root. */
93	pszLastSep[1] = '\0';
94	}
95	else
96	pszLastSep[0] = '\0';
97	return;
98	}
99	}
100	/* will never get here */
101	}
102
103
104	/**
105	* Strips the extension from a path.
106	*
107	* @param pszPath Path which extension should be stripped.
108	*/
109	RTDECL(void) RTPathStripExt(char *pszPath)
110	{
111	char *pszDot = NULL;
112	for (;; pszPath++)
113	{
114	switch (*pszPath)
115	{
116	/* handle separators. */
117	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
118	case ':':
119	case '\\':
120	#endif
121	case '/':
122	pszDot = NULL;
123	break;
124	case '.':
125	pszDot = pszPath;
126	break;
127
128	/* the end */
129	case '\0':
130	if (pszDot)
131	*pszDot = '\0';
132	return;
133	}
134	}
135	/* will never get here */
136	}
137
138
139	/**
140	* Parses a path.
141	*
142	* It figures the length of the directory component, the offset of
143	* the file name and the location of the suffix dot.
144	*
145	* @returns The path length.
146	*
147	* @param pszPath Path to find filename in.
148	* @param pcbDir Where to put the length of the directory component.
149	* If no directory, this will be 0. Optional.
150	* @param poffName Where to store the filename offset.
151	* If empty string or if it's ending with a slash this
152	* will be set to -1. Optional.
153	* @param poffSuff Where to store the suffix offset (the last dot).
154	* If empty string or if it's ending with a slash this
155	* will be set to -1. Optional.
156	* @param pfFlags Where to set flags returning more information about
157	* the path. For the future. Optional.
158	*/
159	RTDECL(size_t) RTPathParse(const char pszPath, size_t pcchDir, ssize_t poffName, ssize_t poffSuff)
160	{
161	const char *psz = pszPath;
162	ssize_t offRoot = 0;
163	const char *pszName = pszPath;
164	const char *pszLastDot = NULL;
165
166	for (;; psz++)
167	{
168	switch (*psz)
169	{
170	/* handle separators. */
171	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
172	case ':':
173	pszName = psz + 1;
174	offRoot = pszName - psz;
175	break;
176
177	case '\\':
178	#endif
179	case '/':
180	pszName = psz + 1;
181	break;
182
183	case '.':
184	pszLastDot = psz;
185	break;
186
187	/*
188	* The end. Complete the results.
189	*/
190	case '\0':
191	{
192	ssize_t offName = *pszName != '\0' ? pszName - pszPath : -1;
193	if (poffName)
194	*poffName = offName;
195
196	if (poffSuff)
197	{
198	ssize_t offSuff = -1;
199	if (pszLastDot)
200	{
201	offSuff = pszLastDot - pszPath;
202	if (offSuff <= offName)
203	offSuff = -1;
204	}
205	*poffSuff = offSuff;
206	}
207
208	if (pcchDir)
209	{
210	ssize_t off = offName - 1;
211	while (off >= offRoot && RTPATH_IS_SLASH(pszPath[off]))
212	off--;
213	*pcchDir = RT_MAX(off, offRoot) + 1;
214	}
215
216	return psz - pszPath;
217	}
218	}
219	}
220
221	/* will never get here */
222	return 0;
223	}
224
225
226	/**
227	* Finds the filename in a path.
228	*
229	* @returns Pointer to filename within pszPath.
230	* @returns NULL if no filename (i.e. empty string or ends with a slash).
231	* @param pszPath Path to find filename in.
232	*/
233	RTDECL(char ) RTPathFilename(const char pszPath)
234	{
235	const char *psz = pszPath;
236	const char *pszName = pszPath;
237
238	for (;; psz++)
239	{
240	switch (*psz)
241	{
242	/* handle separators. */
243	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
244	case ':':
245	pszName = psz + 1;
246	break;
247
248	case '\\':
249	#endif
250	case '/':
251	pszName = psz + 1;
252	break;
253
254	/* the end */
255	case '\0':
256	if (*pszName)
257	return (char )(void )pszName;
258	return NULL;
259	}
260	}
261
262	/* will never get here */
263	return NULL;
264	}
265
266
267	/**
268	* Strips the trailing slashes of a path name.
269	*
270	* @param pszPath Path to strip.
271	*
272	* @todo This isn't safe for a root element! Needs fixing.
273	*/
274	RTDECL(void) RTPathStripTrailingSlash(char *pszPath)
275	{
276	char *pszEnd = strchr(pszPath, '\0');
277	while (pszEnd-- > pszPath)
278	{
279	switch (*pszEnd)
280	{
281	case '/':
282	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
283	case '\\':
284	#endif
285	*pszEnd = '\0';
286	break;
287	default:
288	return;
289	}
290	}
291	return;
292	}
293
294
295	/**
296	* Finds the extension part of in a path.
297	*
298	* @returns Pointer to extension within pszPath.
299	* @returns NULL if no extension.
300	* @param pszPath Path to find extension in.
301	*/
302	RTDECL(char ) RTPathExt(const char pszPath)
303	{
304	const char *psz = pszPath;
305	const char *pszExt = NULL;
306
307	for (;; psz++)
308	{
309	switch (*psz)
310	{
311	/* handle separators. */
312	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
313	case ':':
314	pszExt = NULL;
315	break;
316
317	case '\\':
318	#endif
319	case '/':
320	pszExt = NULL;
321	break;
322	case '.':
323	pszExt = psz;
324	break;
325
326	/* the end */
327	case '\0':
328	if (pszExt)
329	return (char )(void )pszExt;
330	return NULL;
331	}
332	}
333
334	/* will never get here */
335	return NULL;
336	}
337
338
339	/**
340	* Checks if a path have an extension.
341	*
342	* @returns true if extension present.
343	* @returns false if no extension.
344	* @param pszPath Path to check.
345	*/
346	RTDECL(bool) RTPathHaveExt(const char *pszPath)
347	{
348	return RTPathExt(pszPath) != NULL;
349	}
350
351
352	/**
353	* Checks if a path includes more than a filename.
354	*
355	* @returns true if path present.
356	* @returns false if no path.
357	* @param pszPath Path to check.
358	*/
359	RTDECL(bool) RTPathHavePath(const char *pszPath)
360	{
361	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
362	return strpbrk(pszPath, "/\\:") != NULL;
363	#else
364	return strpbrk(pszPath, "/") != NULL;
365	#endif
366	}
367
368
369	/**
370	* Helper for RTPathCompare() and RTPathStartsWith().
371	*
372	* @returns similar to strcmp.
373	* @param pszPath1 Path to compare.
374	* @param pszPath2 Path to compare.
375	* @param fLimit Limit the comparison to the length of \a pszPath2
376	* @internal
377	*/
378	static int rtPathCompare(const char pszPath1, const char pszPath2, bool fLimit)
379	{
380	if (pszPath1 == pszPath2)
381	return 0;
382	if (!pszPath1)
383	return -1;
384	if (!pszPath2)
385	return 1;
386
387	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
388	PRTUNICP puszPath1;
389	int rc = RTStrToUni(pszPath1, &puszPath1);
390	if (RT_FAILURE(rc))
391	return -1;
392	PRTUNICP puszPath2;
393	rc = RTStrToUni(pszPath2, &puszPath2);
394	if (RT_FAILURE(rc))
395	{
396	RTUniFree(puszPath1);
397	return 1;
398	}
399
400	int iDiff = 0;
401	PRTUNICP puszTmpPath1 = puszPath1;
402	PRTUNICP puszTmpPath2 = puszPath2;
403	for (;;)
404	{
405	register RTUNICP uc1 = *puszTmpPath1;
406	register RTUNICP uc2 = *puszTmpPath2;
407	if (uc1 != uc2)
408	{
409	if (uc1 == '\\')
410	uc1 = '/';
411	else
412	uc1 = RTUniCpToUpper(uc1);
413	if (uc2 == '\\')
414	uc2 = '/';
415	else
416	uc2 = RTUniCpToUpper(uc2);
417	if (uc1 != uc2)
418	{
419	iDiff = uc1 > uc2 ? 1 : -1; /* (overflow/underflow paranoia) */
420	if (fLimit && uc2 == '\0')
421	iDiff = 0;
422	break;
423	}
424	}
425	if (!uc1)
426	break;
427	puszTmpPath1++;
428	puszTmpPath2++;
429
430	}
431
432	RTUniFree(puszPath2);
433	RTUniFree(puszPath1);
434	return iDiff;
435
436	#else
437	if (!fLimit)
438	return strcmp(pszPath1, pszPath2);
439	return strncmp(pszPath1, pszPath2, strlen(pszPath2));
440	#endif
441	}
442
443
444	/**
445	* Compares two paths.
446	*
447	* The comparison takes platform-dependent details into account,
448	* such as:
449	* <ul>
450	* <li>On DOS-like platforms, both \|\\| and \|/\| separator chars are considered
451	* to be equal.
452	* <li>On platforms with case-insensitive file systems, mismatching characters
453	* are uppercased and compared again.
454	* </ul>
455	*
456	* @remark
457	*
458	* File system details are currently ignored. This means that you won't get
459	* case-insentive compares on unix systems when a path goes into a case-insensitive
460	* filesystem like FAT, HPFS, HFS, NTFS, JFS, or similar. For NT, OS/2 and similar
461	* you'll won't get case-sensitve compares on a case-sensitive file system.
462	*
463	* @param pszPath1 Path to compare (must be an absolute path).
464	* @param pszPath2 Path to compare (must be an absolute path).
465	*
466	* @returns @< 0 if the first path less than the second path.
467	* @returns 0 if the first path identical to the second path.
468	* @returns @> 0 if the first path greater than the second path.
469	*/
470	RTDECL(int) RTPathCompare(const char pszPath1, const char pszPath2)
471	{
472	return rtPathCompare(pszPath1, pszPath2, false /* full path lengths */);
473	}
474
475
476	/**
477	* Checks if a path starts with the given parent path.
478	*
479	* This means that either the path and the parent path matches completely, or that
480	* the path is to some file or directory residing in the tree given by the parent
481	* directory.
482	*
483	* The path comparison takes platform-dependent details into account,
484	* see RTPathCompare() for details.
485	*
486	* @param pszPath Path to check, must be an absolute path.
487	* @param pszParentPath Parent path, must be an absolute path.
488	* No trailing directory slash!
489	*
490	* @returns \|true\| when \a pszPath starts with \a pszParentPath (or when they
491	* are identical), or \|false\| otherwise.
492	*
493	* @remark This API doesn't currently handle root directory compares in a manner
494	* consistant with the other APIs. RTPathStartsWith(pszSomePath, "/") will
495	* not work if pszSomePath isn't "/".
496	*/
497	RTDECL(bool) RTPathStartsWith(const char pszPath, const char pszParentPath)
498	{
499	if (pszPath == pszParentPath)
500	return true;
501	if (!pszPath \|\| !pszParentPath)
502	return false;
503
504	if (rtPathCompare(pszPath, pszParentPath, true /* limited by path 2 */) != 0)
505	return false;
506
507	const size_t cchParentPath = strlen(pszParentPath);
508	return RTPATH_IS_SLASH(pszPath[cchParentPath])
509	\|\| pszPath[cchParentPath] == '\0';
510	}
511
512
513	/**
514	* Same as RTPathReal only the result is RTStrDup()'ed.
515	*
516	* @returns Pointer to real path. Use RTStrFree() to free this string.
517	* @returns NULL if RTPathReal() or RTStrDup() fails.
518	* @param pszPath
519	*/
520	RTDECL(char ) RTPathRealDup(const char pszPath)
521	{
522	char szPath[RTPATH_MAX];
523	int rc = RTPathReal(pszPath, szPath, sizeof(szPath));
524	if (RT_SUCCESS(rc))
525	return RTStrDup(szPath);
526	return NULL;
527	}
528
529
530	/**
531	* Same as RTPathAbs only the result is RTStrDup()'ed.
532	*
533	* @returns Pointer to real path. Use RTStrFree() to free this string.
534	* @returns NULL if RTPathAbs() or RTStrDup() fails.
535	* @param pszPath The path to resolve.
536	*/
537	RTDECL(char ) RTPathAbsDup(const char pszPath)
538	{
539	char szPath[RTPATH_MAX];
540	int rc = RTPathAbs(pszPath, szPath, sizeof(szPath));
541	if (RT_SUCCESS(rc))
542	return RTStrDup(szPath);
543	return NULL;
544	}
545
546
547	/**
548	* Returns the length of the volume name specifier of the given path.
549	* If no such specifier zero is returned.
550	*/
551	size_t rtPathVolumeSpecLen(const char *pszPath)
552	{
553	#if defined (RT_OS_OS2) \|\| defined (RT_OS_WINDOWS)
554	if (pszPath && *pszPath)
555	{
556	/* UTC path. */
557	if ( (pszPath[0] == '\\' \|\| pszPath[0] == '/')
558	&& (pszPath[1] == '\\' \|\| pszPath[1] == '/'))
559	return strcspn(pszPath + 2, "\\/") + 2;
560
561	/* Drive letter. */
562	if ( pszPath[1] == ':'
563	&& toupper(pszPath[0]) >= 'A' && toupper(pszPath[0]) <= 'Z')
564	return 2;
565	}
566	return 0;
567
568	#else
569	/* This isn't quite right when looking at the above stuff, but it works assuming that '//' does not mean UNC. */
570	/// @todo (dmik) well, it's better to consider there's no volume name
571	// at all on *nix systems
572	return 0;
573	// return pszPath && pszPath[0] == '/';
574	#endif
575	}
576
577
578	/**
579	* Get the absolute path (no symlinks, no . or .. components), assuming the
580	* given base path as the current directory. The resulting path doesn't have
581	* to exist.
582	*
583	* @returns iprt status code.
584	* @param pszBase The base path to act like a current directory.
585	* When NULL, the actual cwd is used (i.e. the call
586	* is equivalent to RTPathAbs(pszPath, ...).
587	* @param pszPath The path to resolve.
588	* @param pszAbsPath Where to store the absolute path.
589	* @param cchAbsPath Size of the buffer.
590	*/
591	RTDECL(int) RTPathAbsEx(const char pszBase, const char pszPath, char *pszAbsPath, size_t cchAbsPath)
592	{
593	if (pszBase && pszPath && !rtPathVolumeSpecLen(pszPath))
594	{
595	#if defined(RT_OS_WINDOWS)
596	/* The format for very long paths is not supported. */
597	if ( (pszBase[0] == '/' \|\| pszBase[0] == '\\')
598	&& (pszBase[1] == '/' \|\| pszBase[1] == '\\')
599	&& pszBase[2] == '?'
600	&& (pszBase[3] == '/' \|\| pszBase[3] == '\\'))
601	return VERR_INVALID_NAME;
602	#endif
603
604	/** @todo there are a couple of things which isn't 100% correct, although the
605	* current code will have to work for now - I don't have time to fix it right now.
606	*
607	* 1) On Windows & OS/2 we confuse '/' with an abspath spec and will
608	* not necessarily resolve it on the right drive.
609	* 2) A trailing slash in the base might cause UNC names to be created.
610	* 3) The lengths total doesn't have to be less than max length
611	* if the pszPath starts with a slash.
612	*/
613	size_t cchBase = strlen(pszBase);
614	size_t cchPath = strlen(pszPath);
615	if (cchBase + cchPath >= RTPATH_MAX)
616	return VERR_FILENAME_TOO_LONG;
617
618	bool fRootSpec = pszPath[0] == '/'
619	#if defined(RT_OS_WINDOWS) \|\| defined(RT_OS_OS2)
620	\|\| pszPath[0] == '\\'
621	#endif
622	;
623	size_t cchVolSpec = rtPathVolumeSpecLen(pszBase);
624	char szPath[RTPATH_MAX];
625	if (fRootSpec)
626	{
627	/* join the disk name from base and the path */
628	memcpy(szPath, pszBase, cchVolSpec);
629	strcpy(&szPath[cchVolSpec], pszPath);
630	}
631	else
632	{
633	/* join the base path and the path */
634	strcpy(szPath, pszBase);
635	szPath[cchBase] = RTPATH_DELIMITER;
636	strcpy(&szPath[cchBase + 1], pszPath);
637	}
638	return RTPathAbs(szPath, pszAbsPath, cchAbsPath);
639	}
640
641	/* Fallback to the non Ex version /
642	return RTPathAbs(pszPath, pszAbsPath, cchAbsPath);
643	}
644
645
646	/**
647	* Same as RTPathAbsEx only the result is RTStrDup()'ed.
648	*
649	* @returns Pointer to the absolute path. Use RTStrFree() to free this string.
650	* @returns NULL if RTPathAbsEx() or RTStrDup() fails.
651	* @param pszBase The base path to act like a current directory.
652	* When NULL, the actual cwd is used (i.e. the call
653	* is equivalent to RTPathAbs(pszPath, ...).
654	* @param pszPath The path to resolve.
655	*/
656	RTDECL(char ) RTPathAbsExDup(const char pszBase, const char *pszPath)
657	{
658	char szPath[RTPATH_MAX];
659	int rc = RTPathAbsEx(pszBase, pszPath, szPath, sizeof(szPath));
660	if (RT_SUCCESS(rc))
661	return RTStrDup(szPath);
662	return NULL;
663	}
664
665
666	#ifndef RT_MINI
667
668	RTDECL(int) RTPathProgram(char *pszPath, size_t cchPath)
669	{
670	AssertReturn(g_szrtProcExePath[0], VERR_WRONG_ORDER);
671
672	/*
673	* Calc the length and check if there is space before copying.
674	*/
675	size_t cch = g_cchrtProcDir;
676	if (cch <= cchPath)
677	{
678	memcpy(pszPath, g_szrtProcExePath, cch);
679	pszPath[cch] = '\0';
680	return VINF_SUCCESS;
681	}
682
683	AssertMsgFailed(("Buffer too small (%zu <= %zu)\n", cchPath, cch));
684	return VERR_BUFFER_OVERFLOW;
685	}
686
687
688	/**
689	* Gets the directory for architecture-independent application data, for
690	* example NLS files, module sources, ...
691	*
692	* Linux: /usr/shared/@<application@>
693	* Windows: @<program files directory@>/@<application@>
694	* Old path: same as RTPathProgram()
695	*
696	*/
697	RTDECL(int) RTPathAppPrivateNoArch(char *pszPath, size_t cchPath)
698	{
699	#if !defined(RT_OS_WINDOWS) && defined(RTPATH_APP_PRIVATE)
700	char *pszUtf8Path;
701	int rc;
702	rc = rtPathFromNative(&pszUtf8Path, RTPATH_APP_PRIVATE);
703	if (RT_SUCCESS(rc))
704	{
705	size_t cchPathPrivateNoArch = strlen(pszUtf8Path);
706	if (cchPathPrivateNoArch < cchPath)
707	memcpy(pszPath, pszUtf8Path, cchPathPrivateNoArch + 1);
708	else
709	rc = VERR_BUFFER_OVERFLOW;
710	RTStrFree(pszUtf8Path);
711	}
712	return rc;
713	#else
714	return RTPathProgram(pszPath, cchPath);
715	#endif
716	}
717
718
719	/**
720	* Gets the directory for architecture-dependent application data, for
721	* example modules which can be loaded at runtime.
722	*
723	* Linux: /usr/lib/@<application@>
724	* Windows: @<program files directory@>/@<application@>
725	* Old path: same as RTPathProgram()
726	*
727	* @returns iprt status code.
728	* @param pszPath Buffer where to store the path.
729	* @param cchPath Buffer size in bytes.
730	*/
731	RTDECL(int) RTPathAppPrivateArch(char *pszPath, size_t cchPath)
732	{
733	#if !defined(RT_OS_WINDOWS) && defined(RTPATH_APP_PRIVATE_ARCH)
734	char *pszUtf8Path;
735	int rc;
736	rc = rtPathFromNative(&pszUtf8Path, RTPATH_APP_PRIVATE_ARCH);
737	if (RT_SUCCESS(rc))
738	{
739	size_t cchPathPrivateArch = strlen(pszUtf8Path);
740	if (cchPathPrivateArch < cchPath)
741	memcpy(pszPath, pszUtf8Path, cchPathPrivateArch + 1);
742	else
743	rc = VERR_BUFFER_OVERFLOW;
744	RTStrFree(pszUtf8Path);
745	}
746	return rc;
747	#else
748	return RTPathProgram(pszPath, cchPath);
749	#endif
750	}
751
752
753	/**
754	* Gets the directory of shared libraries. This is not the same as
755	* RTPathAppPrivateArch() as Linux depends all shared libraries in
756	* a common global directory where ld.so can found them.
757	*
758	* Linux: /usr/lib
759	* Windows: @<program files directory@>/@<application@>
760	* Old path: same as RTPathProgram()
761	*
762	* @returns iprt status code.
763	* @param pszPath Buffer where to store the path.
764	* @param cchPath Buffer size in bytes.
765	*/
766	RTDECL(int) RTPathSharedLibs(char *pszPath, size_t cchPath)
767	{
768	#if !defined(RT_OS_WINDOWS) && defined(RTPATH_SHARED_LIBS)
769	char *pszUtf8Path;
770	int rc;
771	rc = rtPathFromNative(&pszUtf8Path, RTPATH_SHARED_LIBS);
772	if (RT_SUCCESS(rc))
773	{
774	size_t cchPathSharedLibs = strlen(pszUtf8Path);
775	if (cchPathSharedLibs < cchPath)
776	memcpy(pszPath, pszUtf8Path, cchPathSharedLibs + 1);
777	else
778	rc = VERR_BUFFER_OVERFLOW;
779	RTStrFree(pszUtf8Path);
780	}
781	return rc;
782	#else
783	return RTPathProgram(pszPath, cchPath);
784	#endif
785	}
786
787
788	/**
789	* Gets the directory for documentation.
790	*
791	* Linux: /usr/share/doc/@<application@>
792	* Windows: @<program files directory@>/@<application@>
793	* Old path: same as RTPathProgram()
794	*
795	* @returns iprt status code.
796	* @param pszPath Buffer where to store the path.
797	* @param cchPath Buffer size in bytes.
798	*/
799	RTDECL(int) RTPathAppDocs(char *pszPath, size_t cchPath)
800	{
801	#if !defined(RT_OS_WINDOWS) && defined(RTPATH_APP_DOCS)
802	char *pszUtf8Path;
803	int rc;
804	rc = rtPathFromNative(&pszUtf8Path, RTPATH_APP_DOCS);
805	if (RT_SUCCESS(rc))
806	{
807	size_t cchPathAppDocs = strlen(pszUtf8Path);
808	if (cchPathAppDocs < cchPath)
809	memcpy(pszPath, pszUtf8Path, cchPathAppDocs + 1);
810	else
811	rc = VERR_BUFFER_OVERFLOW;
812	RTStrFree(pszUtf8Path);
813	}
814	return rc;
815	#else
816	return RTPathProgram(pszPath, cchPath);
817	#endif
818	}
819
820	#endif /* !RT_MINI */
821

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source: vbox/trunk/src/VBox/Runtime/r3/path.cpp@ 16684

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