getopt.h@ 100339

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1	/** @file
2	* IPRT - Command Line Parsing.
3	*/
4
5	/*
6	* Copyright (C) 2007-2023 Oracle and/or its affiliates.
7	*
8	* This file is part of VirtualBox base platform packages, as
9	* available from https://www.virtualbox.org.
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU General Public License
13	* as published by the Free Software Foundation, in version 3 of the
14	* License.
15	*
16	* This program is distributed in the hope that it will be useful, but
17	* WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	* General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with this program; if not, see <https://www.gnu.org/licenses>.
23	*
24	* The contents of this file may alternatively be used under the terms
25	* of the Common Development and Distribution License Version 1.0
26	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
27	* in the VirtualBox distribution, in which case the provisions of the
28	* CDDL are applicable instead of those of the GPL.
29	*
30	* You may elect to license modified versions of this file under the
31	* terms and conditions of either the GPL or the CDDL or both.
32	*
33	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
34	*/
35
36	#ifndef IPRT_INCLUDED_getopt_h
37	#define IPRT_INCLUDED_getopt_h
38	#ifndef RT_WITHOUT_PRAGMA_ONCE
39	# pragma once
40	#endif
41
42
43	#include <iprt/cdefs.h>
44	#include <iprt/types.h>
45	#include <iprt/errcore.h> /* for VINF_GETOPT_NOT_OPTION */
46
47	RT_C_DECLS_BEGIN
48
49	/** @defgroup grp_rt_getopt RTGetOpt - Command Line Parsing
50	* @ingroup grp_rt
51	* @{
52	*/
53
54	/** @name Values for RTGETOPTDEF::fFlags and the fFlags parameter of
55	* RTGetOptFetchValue.
56	*
57	* @remarks When neither of the RTGETOPT_FLAG_HEX, RTGETOPT_FLAG_OCT and RTGETOPT_FLAG_DEC
58	* flags are specified with a integer value format, RTGetOpt will default to
59	* decimal but recognize the 0x prefix when present. RTGetOpt will not look for
60	* for the octal prefix (0).
61	* @{ */
62	/** Requires no extra argument.
63	* (Can be assumed to be 0 for ever.) */
64	#define RTGETOPT_REQ_NOTHING 0
65	/** A value is required or error will be returned. */
66	#define RTGETOPT_REQ_STRING 1
67	/** The value must be a valid signed 8-bit integer or an error will be returned. */
68	#define RTGETOPT_REQ_INT8 2
69	/** The value must be a valid unsigned 8-bit integer or an error will be returned. */
70	#define RTGETOPT_REQ_UINT8 3
71	/** The value must be a valid signed 16-bit integer or an error will be returned. */
72	#define RTGETOPT_REQ_INT16 4
73	/** The value must be a valid unsigned 16-bit integer or an error will be returned. */
74	#define RTGETOPT_REQ_UINT16 5
75	/** The value must be a valid signed 32-bit integer or an error will be returned. */
76	#define RTGETOPT_REQ_INT32 6
77	/** The value must be a valid unsigned 32-bit integer or an error will be returned. */
78	#define RTGETOPT_REQ_UINT32 7
79	/** The value must be a valid signed 64-bit integer or an error will be returned. */
80	#define RTGETOPT_REQ_INT64 8
81	/** The value must be a valid unsigned 64-bit integer or an error will be returned. */
82	#define RTGETOPT_REQ_UINT64 9
83	/** The value must be a valid IPv4 address.
84	* (Not a name, but 4 values in the 0..255 range with dots separating them). */
85	#define RTGETOPT_REQ_IPV4ADDR 10
86	/** The value must be a valid IPv4 CIDR.
87	* As with RTGETOPT_REQ_IPV4ADDR, no name.
88	*/
89	#define RTGETOPT_REQ_IPV4CIDR 11
90	#if 0
91	/* take placers */
92	/** The value must be a valid IPv6 addr
93	* @todo: Add types and parsing routines in (iprt/net.h)
94	*/
95	#define RTGETOPT_REQ_IPV6ADDR 12
96	/** The value must be a valid IPv6 CIDR
97	* @todo: Add types and parsing routines in (iprt/net.h)
98	*/
99	#define RTGETOPT_REQ_IPV6CIDR 13
100	#endif
101	/** The value must be a valid ethernet MAC address. */
102	#define RTGETOPT_REQ_MACADDR 14
103	/** The value must be a valid UUID. */
104	#define RTGETOPT_REQ_UUID 15
105	/** The value must be a string with value as "on" or "off". */
106	#define RTGETOPT_REQ_BOOL_ONOFF 16
107	/** Boolean option accepting a wide range of typical ways of
108	* expression true and false. */
109	#define RTGETOPT_REQ_BOOL 17
110	/** The value must two unsigned 32-bit integer values separated by a colon,
111	* slash, pipe or space(s). */
112	#define RTGETOPT_REQ_UINT32_PAIR 18
113	/** The value must two unsigned 64-bit integer values separated by a colon,
114	* slash, pipe or space(s). */
115	#define RTGETOPT_REQ_UINT64_PAIR 19
116	/** The value must at least unsigned 32-bit integer value, optionally
117	* followed by a second separated by a colon, slash, pipe or space(s). */
118	#define RTGETOPT_REQ_UINT32_OPTIONAL_PAIR 20
119	/** The value must at least unsigned 64-bit integer value, optionally
120	* followed by a second separated by a colon, slash, pipe or space(s). */
121	#define RTGETOPT_REQ_UINT64_OPTIONAL_PAIR 21
122	/** The mask of the valid required types. */
123	#define RTGETOPT_REQ_MASK 31
124	/** Treat the value as hexadecimal - only applicable with the RTGETOPT_REQ_INT. */
125	#define RTGETOPT_FLAG_HEX RT_BIT(16)
126	/** Treat the value as octal - only applicable with the RTGETOPT_REQ_INT. */
127	#define RTGETOPT_FLAG_OCT RT_BIT(17)
128	/** Treat the value as decimal - only applicable with the RTGETOPT_REQ_INT. */
129	#define RTGETOPT_FLAG_DEC RT_BIT(18)
130	/** The index value is attached to the argument - only valid for long arguments. */
131	#define RTGETOPT_FLAG_INDEX RT_BIT(19)
132	/** Used with RTGETOPT_FLAG_INDEX, setting index to zero if none given.
133	* (The default is to fail with VERR_GETOPT_INDEX_MISSING.) */
134	#define RTGETOPT_FLAG_INDEX_DEF_0 RT_BIT(20)
135	/** Used with RTGETOPT_FLAG_INDEX, setting index to one if none given.
136	* (The default is to fail with VERR_GETOPT_INDEX_MISSING.) */
137	#define RTGETOPT_FLAG_INDEX_DEF_1 RT_BIT(21)
138	/** For simplicity. */
139	#define RTGETOPT_FLAG_INDEX_DEF_MASK (RT_BIT(20) \| RT_BIT(21))
140	/** For simple conversion. */
141	#define RTGETOPT_FLAG_INDEX_DEF_SHIFT 20
142	/** For use with RTGETOPT_FLAG_INDEX_DEF_0 or RTGETOPT_FLAG_INDEX_DEF_1 to
143	* imply a dash before the index when a digit is specified.
144	* This is for transitioning from options without index to optionally allow
145	* index options, i.e. "--long" defaults to either index 1 or 1 using the above
146	* flags, while "--long-1" explicitly gives the index ("--long-" is not valid).
147	* This flag matches an "-" separating the "--long" string
148	* (RTGETOPTDEFS::pszLong) from the index value. */
149	#define RTGETOPT_FLAG_INDEX_DEF_DASH RT_BIT(22)
150	/** Treat the long option as case insensitive. */
151	#define RTGETOPT_FLAG_ICASE RT_BIT(23)
152	/** Mask of valid bits - for validation. */
153	#define RTGETOPT_VALID_MASK ( RTGETOPT_REQ_MASK \
154	\| RTGETOPT_FLAG_HEX \
155	\| RTGETOPT_FLAG_OCT \
156	\| RTGETOPT_FLAG_DEC \
157	\| RTGETOPT_FLAG_INDEX \
158	\| RTGETOPT_FLAG_INDEX_DEF_0 \
159	\| RTGETOPT_FLAG_INDEX_DEF_1 \
160	\| RTGETOPT_FLAG_INDEX_DEF_DASH \
161	\| RTGETOPT_FLAG_ICASE )
162	/** @} */
163
164	/**
165	* An option definition.
166	*/
167	typedef struct RTGETOPTDEF
168	{
169	/** The long option.
170	* This is optional */
171	const char *pszLong;
172	/** The short option character.
173	* This doesn't have to be a character, it may also be a \#define or enum value if
174	* there isn't any short version of this option. Must be greater than 0. */
175	int iShort;
176	/** The flags (RTGETOPT_). /
177	unsigned fFlags;
178	} RTGETOPTDEF;
179	/** Pointer to an option definition. */
180	typedef RTGETOPTDEF *PRTGETOPTDEF;
181	/** Pointer to an const option definition. */
182	typedef const RTGETOPTDEF *PCRTGETOPTDEF;
183
184	/**
185	* Option argument union.
186	*
187	* What ends up here depends on argument format in the option definition.
188	*/
189	typedef union RTGETOPTUNION
190	{
191	/** Pointer to the definition on failure or when the option doesn't take an argument.
192	* This can be NULL for some errors. */
193	PCRTGETOPTDEF pDef;
194	/** A RTGETOPT_REQ_STRING option argument. */
195	const char *psz;
196
197	/** A RTGETOPT_REQ_INT8 option argument. */
198	int8_t i8;
199	/** A RTGETOPT_REQ_UINT8 option argument . */
200	uint8_t u8;
201	/** A RTGETOPT_REQ_INT16 option argument. */
202	int16_t i16;
203	/** A RTGETOPT_REQ_UINT16 option argument . */
204	uint16_t u16;
205	/** A RTGETOPT_REQ_INT16 option argument. */
206	int32_t i32;
207	/** A RTGETOPT_REQ_UINT32 option argument . */
208	uint32_t u32;
209	/** A RTGETOPT_REQ_INT64 option argument. */
210	int64_t i64;
211	/** A RTGETOPT_REQ_UINT64 option argument. */
212	uint64_t u64;
213	#ifdef IPRT_INCLUDED_net_h
214	/** A RTGETOPT_REQ_IPV4ADDR option argument. */
215	RTNETADDRIPV4 IPv4Addr;
216	/** A RTGETOPT_REQ_IPV4CIDR option argument. */
217	struct
218	{
219	RTNETADDRIPV4 IPv4Network;
220	RTNETADDRIPV4 IPv4Netmask;
221	} CidrIPv4;
222	#endif
223	/** A RTGETOPT_REQ_MACADDR option argument. */
224	RTMAC MacAddr;
225	/** A RTGETOPT_REQ_UUID option argument. */
226	RTUUID Uuid;
227	/** A boolean flag. */
228	bool f;
229	/** A RTGETOPT_REQ_UINT32_PAIR or RTGETOPT_REQ_UINT32_OPTIONAL_PAIR option
230	* argument. */
231	struct
232	{
233	uint32_t uFirst;
234	uint32_t uSecond; /*< Set to UINT32_MAX if optional and not present. /
235	} PairU32;
236	/** A RTGETOPT_REQ_UINT64_COLON_PAIR option argument. */
237	struct
238	{
239	uint64_t uFirst;
240	uint64_t uSecond; /*< Set to UINT64_MAX if optional and not present. /
241	} PairU64;
242	} RTGETOPTUNION;
243	/** Pointer to an option argument union. */
244	typedef RTGETOPTUNION *PRTGETOPTUNION;
245	/** Pointer to a const option argument union. */
246	typedef RTGETOPTUNION const *PCRTGETOPTUNION;
247
248
249	/**
250	* RTGetOpt state.
251	*/
252	typedef struct RTGETOPTSTATE
253	{
254	/** The next argument. */
255	int iNext;
256	/** Argument array. */
257	char **argv;
258	/** Number of items in argv. */
259	int argc;
260	/** Option definition array. */
261	PCRTGETOPTDEF paOptions;
262	/** Number of items in paOptions. */
263	size_t cOptions;
264	/** The next short option.
265	* (For parsing ls -latrT4 kind of option lists.) */
266	const char *pszNextShort;
267	/** The option definition which matched. NULL otherwise. */
268	PCRTGETOPTDEF pDef;
269	/** The index of an index option, otherwise UINT32_MAX. */
270	uint32_t uIndex;
271	/** The flags passed to RTGetOptInit. */
272	uint32_t fFlags;
273	/** Number of non-options that we're skipping during a sorted get. The value
274	* INT32_MAX is used to indicate that there are no more options. This is used
275	* to implement '--'. */
276	int32_t cNonOptions;
277
278	/* More members may be added later for dealing with new features. */
279	} RTGETOPTSTATE;
280	/** Pointer to RTGetOpt state. */
281	typedef RTGETOPTSTATE *PRTGETOPTSTATE;
282
283
284	/**
285	* Initialize the RTGetOpt state.
286	*
287	* The passed in argument vector may be sorted if fFlags indicates that this is
288	* desired (to be implemented).
289	*
290	* @returns VINF_SUCCESS, VERR_INVALID_PARAMETER or VERR_INVALID_POINTER.
291	* @param pState The state.
292	*
293	* @param argc Argument count, to be copied from what comes in with
294	* main().
295	* @param argv Argument array, to be copied from what comes in with
296	* main(). This may end up being modified by the
297	* option/argument sorting.
298	* @param paOptions Array of RTGETOPTDEF structures, which must specify what
299	* options are understood by the program.
300	* @param cOptions Number of array items passed in with paOptions.
301	* @param iFirst The argument to start with (in argv).
302	* @param fFlags The flags, see RTGETOPTINIT_FLAGS_XXX.
303	*/
304	RTDECL(int) RTGetOptInit(PRTGETOPTSTATE pState, int argc, char **argv,
305	PCRTGETOPTDEF paOptions, size_t cOptions,
306	int iFirst, uint32_t fFlags);
307
308	/** @name RTGetOptInit flags.
309	* @{ */
310	/** Sort the arguments so that options comes first, then non-options. */
311	#define RTGETOPTINIT_FLAGS_OPTS_FIRST RT_BIT_32(0)
312	/** Prevent add the standard version and help options:
313	* - "--help", "-h" and "-?" returns 'h'.
314	* - "--version" and "-V" return 'V'.
315	*/
316	#define RTGETOPTINIT_FLAGS_NO_STD_OPTS RT_BIT_32(1)
317	/** @} */
318
319	/**
320	* Command line argument parser, handling both long and short options and checking
321	* argument formats, if desired.
322	*
323	* This is to be called in a loop until it returns 0 (meaning that all options
324	* were parsed) or a negative value (meaning that an error occurred). How non-option
325	* arguments are dealt with depends on the flags passed to RTGetOptInit. The default
326	* (fFlags = 0) is to return VINF_GETOPT_NOT_OPTION with pValueUnion->psz pointing to
327	* the argument string.
328	*
329	* For example, for a program which takes the following options:
330	*
331	* --optwithstring (or -s) and a string argument;
332	* --optwithint (or -i) and a 32-bit signed integer argument;
333	* --verbose (or -v) with no arguments,
334	*
335	* code would look something like this:
336	*
337	* @code
338	int main(int argc, char **argv)
339	{
340	int rc = RTR3Init();
341	if (RT_FAILURE(rc))
342	return RTMsgInitFailure(rc);
343
344	static const RTGETOPTDEF s_aOptions[] =
345	{
346	{ "--optwithstring", 's', RTGETOPT_REQ_STRING },
347	{ "--optwithint", 'i', RTGETOPT_REQ_INT32 },
348	{ "--verbose", 'v', 0 },
349	};
350
351	int ch;
352	RTGETOPTUNION ValueUnion;
353	RTGETOPTSTATE GetState;
354	RTGetOptInit(&GetState, argc, argv, s_aOptions, RT_ELEMENTS(s_aOptions), 1, 0);
355	while ((ch = RTGetOpt(&GetState, &ValueUnion)))
356	{
357	// for options that require an argument, ValueUnion has received the value
358	switch (ch)
359	{
360	case 's': // --optwithstring or -s
361	// string argument, copy ValueUnion.psz
362	break;
363
364	case 'i': // --optwithint or -i
365	// integer argument, copy ValueUnion.i32
366	break;
367
368	case 'v': // --verbose or -v
369	g_fOptVerbose = true;
370	break;
371
372	case VINF_GETOPT_NOT_OPTION:
373	// handle non-option argument in ValueUnion.psz.
374	break;
375
376	default:
377	return RTGetOptPrintError(ch, &ValueUnion);
378	}
379	}
380
381	return RTEXITCODE_SUCCESS;
382	}
383	@endcode
384	*
385	* @returns 0 when done parsing.
386	* @returns the iShort value of the option. pState->pDef points to the option
387	* definition which matched.
388	* @returns IPRT error status on parse error.
389	* @returns VINF_GETOPT_NOT_OPTION when encountering a non-option argument and
390	* RTGETOPTINIT_FLAGS_OPTS_FIRST was not specified. pValueUnion->psz
391	* points to the argument string.
392	* @returns VERR_GETOPT_UNKNOWN_OPTION when encountering an unknown option.
393	* pValueUnion->psz points to the option string.
394	* @returns VERR_GETOPT_REQUIRED_ARGUMENT_MISSING and pValueUnion->pDef if
395	* a required argument (aka value) was missing for an option.
396	* @returns VERR_GETOPT_INVALID_ARGUMENT_FORMAT and pValueUnion->pDef if
397	* argument (aka value) conversion failed.
398	*
399	* @param pState The state previously initialized with RTGetOptInit.
400	* @param pValueUnion Union with value; in the event of an error, psz member
401	* points to erroneous parameter; otherwise, for options
402	* that require an argument, this contains the value of
403	* that argument, depending on the type that is required.
404	*/
405	RTDECL(int) RTGetOpt(PRTGETOPTSTATE pState, PRTGETOPTUNION pValueUnion);
406
407	/**
408	* Fetch a value.
409	*
410	* Used to retrive a value argument in a manner similar to what RTGetOpt does
411	* (@a fFlags -> @a pValueUnion). This can be used when handling
412	* VINF_GETOPT_NOT_OPTION, but is equally useful for decoding options that
413	* takes more than one value.
414	*
415	* @returns VINF_SUCCESS on success.
416	* @returns IPRT error status on parse error.
417	* @returns VERR_INVALID_PARAMETER if the flags are wrong.
418	* @returns VERR_GETOPT_UNKNOWN_OPTION when pState->pDef is null.
419	* @returns VERR_GETOPT_REQUIRED_ARGUMENT_MISSING if there are no more
420	* available arguments. pValueUnion->pDef is NULL.
421	* @returns VERR_GETOPT_INVALID_ARGUMENT_FORMAT and pValueUnion->pDef is
422	* unchanged if value conversion failed.
423	*
424	* @param pState The state previously initialized with RTGetOptInit.
425	* @param pValueUnion Union with value; in the event of an error, psz member
426	* points to erroneous parameter; otherwise, for options
427	* that require an argument, this contains the value of
428	* that argument, depending on the type that is required.
429	* @param fFlags What to get, that is RTGETOPT_REQ_XXX.
430	*/
431	RTDECL(int) RTGetOptFetchValue(PRTGETOPTSTATE pState, PRTGETOPTUNION pValueUnion, uint32_t fFlags);
432
433	/**
434	* Gets the pointer to the argv entry of the current non-option argument.
435	*
436	* This function ASSUMES the previous RTGetOpt() call returned
437	* VINF_GETOPT_NOT_OPTION and require RTGETOPTINIT_FLAGS_OPTS_FIRST to be
438	* specified to RTGetOptInit().
439	*
440	* @returns Pointer to the argv entry of the current non-option. NULL if
441	* (detectable) precondition isn't fullfilled (asserted)
442	* @param pState The state previously initialized with RTGetOptInit.
443	*/
444	RTDECL(char **) RTGetOptNonOptionArrayPtr(PRTGETOPTSTATE pState);
445
446	/**
447	* Print error messages for a RTGetOpt default case.
448	*
449	* Uses RTMsgError.
450	*
451	* @returns Suitable exit code.
452	*
453	* @param ch The RTGetOpt return value.
454	* @param pValueUnion The value union returned by RTGetOpt.
455	*/
456	RTDECL(RTEXITCODE) RTGetOptPrintError(int ch, PCRTGETOPTUNION pValueUnion);
457
458	/**
459	* Formats error messages for a RTGetOpt default case.
460	*
461	* @returns On success, positive count of formatted character excluding the
462	* terminator. On buffer overflow, negative number giving the required
463	* buffer size (including terminator char). (RTStrPrintf2 style.)
464	*
465	* @param pszBuf The buffer to format into.
466	* @param cbBuf The size of the buffer @a pszBuf points to.
467	* @param ch The RTGetOpt return value.
468	* @param pValueUnion The value union returned by RTGetOpt.
469	*/
470	RTDECL(ssize_t) RTGetOptFormatError(char *pszBuf, size_t cbBuf, int ch, PCRTGETOPTUNION pValueUnion);
471
472	/**
473	* Parses the @a pszCmdLine string into an argv array.
474	*
475	* This is useful for converting a response file or similar to an argument
476	* vector that can be used with RTGetOptInit().
477	*
478	* This function aims at following the bourne shell string quoting rules.
479	*
480	* @returns IPRT status code.
481	*
482	* @param ppapszArgv Where to return the argument vector. This must be
483	* freed by calling RTGetOptArgvFreeEx or
484	* RTGetOptArgvFree.
485	* @param pcArgs Where to return the argument count.
486	* @param pszCmdLine The string to parse.
487	* @param fFlags A combination of the RTGETOPTARGV_CNV_XXX flags,
488	* except RTGETOPTARGV_CNV_UNQUOTED is not supported.
489	* @param pszSeparators String containing the argument separators. If NULL,
490	* then space, tab, line feed (\\n) and return (\\r)
491	* are used.
492	*/
493	RTDECL(int) RTGetOptArgvFromString(char **ppapszArgv, int pcArgs, const char *pszCmdLine, uint32_t fFlags,
494	const char *pszSeparators);
495
496	/**
497	* Frees and argument vector returned by RTGetOptStringToArgv.
498	*
499	* @param papszArgv Argument vector. NULL is fine.
500	*/
501	RTDECL(void) RTGetOptArgvFree(char **papszArgv);
502
503	/**
504	* Frees and argument vector returned by RTGetOptStringToArgv, taking
505	* RTGETOPTARGV_CNV_MODIFY_INPUT into account.
506	*
507	* @param papszArgv Argument vector. NULL is fine.
508	* @param fFlags The flags passed to RTGetOptStringToArgv.
509	*/
510	RTDECL(void) RTGetOptArgvFreeEx(char **papszArgv, uint32_t fFlags);
511
512	/**
513	* Turns an argv array into a command line string.
514	*
515	* This is useful for calling CreateProcess on Windows, but can also be used for
516	* displaying an argv array.
517	*
518	* This function aims at following the bourn shell string quoting rules.
519	*
520	* @returns IPRT status code.
521	*
522	* @param ppszCmdLine Where to return the command line string. This must
523	* be freed by calling RTStrFree.
524	* @param papszArgv The argument vector to convert.
525	* @param fFlags A combination of the RTGETOPTARGV_CNV_XXX flags.
526	*/
527	RTDECL(int) RTGetOptArgvToString(char *ppszCmdLine, const char const *papszArgv, uint32_t fFlags);
528
529	/** @name RTGetOptArgvToString, RTGetOptArgvToUtf16String and
530	* RTGetOptArgvFromString flags
531	* @{ */
532	/** Quote strings according to the Microsoft CRT rules. */
533	#define RTGETOPTARGV_CNV_QUOTE_MS_CRT UINT32_C(0x00000000)
534	/** Quote strings according to the Unix Bourne Shell. */
535	#define RTGETOPTARGV_CNV_QUOTE_BOURNE_SH UINT32_C(0x00000001)
536	/** Don't quote any strings at all. */
537	#define RTGETOPTARGV_CNV_UNQUOTED UINT32_C(0x00000002)
538	/** Mask for the quoting style. */
539	#define RTGETOPTARGV_CNV_QUOTE_MASK UINT32_C(0x00000003)
540	/** Allow RTGetOptArgvFromString to modifying the command line input string.
541	* @note Must use RTGetOptArgvFreeEx to free. */
542	#define RTGETOPTARGV_CNV_MODIFY_INPUT UINT32_C(0x00000004)
543	/** Valid bits. */
544	#define RTGETOPTARGV_CNV_VALID_MASK UINT32_C(0x00000007)
545	/** @} */
546
547	/**
548	* Convenience wrapper around RTGetOpArgvToString and RTStrToUtf16.
549	*
550	* @returns IPRT status code.
551	*
552	* @param ppwszCmdLine Where to return the command line string. This must
553	* be freed by calling RTUtf16Free.
554	* @param papszArgv The argument vector to convert.
555	* @param fFlags A combination of the RTGETOPTARGV_CNV_XXX flags.
556	*/
557	RTDECL(int) RTGetOptArgvToUtf16String(PRTUTF16 ppwszCmdLine, const char const *papszArgv, uint32_t fFlags);
558
559	/** @} */
560
561	RT_C_DECLS_END
562
563	#endif /* !IPRT_INCLUDED_getopt_h */
564

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