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| 1 | +/* Getopt for Microsoft C |
| 2 | +This code is a modification of the Free Software Foundation, Inc. |
| 3 | +Getopt library for parsing command line argument the purpose was |
| 4 | +to provide a Microsoft Visual C friendly derivative. This code |
| 5 | +provides functionality for both Unicode and Multibyte builds. |
| 6 | +
|
| 7 | +Date: 02/03/2011 - Ludvik Jerabek - Initial Release |
| 8 | +Version: 1.0 |
| 9 | +Comment: Supports getopt, getopt_long, and getopt_long_only |
| 10 | +and POSIXLY_CORRECT environment flag |
| 11 | +License: LGPL |
| 12 | +
|
| 13 | +Revisions: |
| 14 | +
|
| 15 | +02/03/2011 - Ludvik Jerabek - Initial Release |
| 16 | +02/20/2011 - Ludvik Jerabek - Fixed compiler warnings at Level 4 |
| 17 | +07/05/2011 - Ludvik Jerabek - Added no_argument, required_argument, optional_argument defs |
| 18 | +08/03/2011 - Ludvik Jerabek - Fixed non-argument runtime bug which caused runtime exception |
| 19 | +08/09/2011 - Ludvik Jerabek - Added code to export functions for DLL and LIB |
| 20 | +02/15/2012 - Ludvik Jerabek - Fixed _GETOPT_THROW definition missing in implementation file |
| 21 | +08/01/2012 - Ludvik Jerabek - Created separate functions for char and wchar_t characters so single dll can do both unicode and ansi |
| 22 | +10/15/2012 - Ludvik Jerabek - Modified to match latest GNU features |
| 23 | +06/19/2015 - Ludvik Jerabek - Fixed maximum option limitation caused by option_a (255) and option_w (65535) structure val variable |
| 24 | +
|
| 25 | +**DISCLAIMER** |
| 26 | +THIS MATERIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, |
| 27 | +EITHER EXPRESS OR IMPLIED, INCLUDING, BUT Not LIMITED TO, THE |
| 28 | +IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR |
| 29 | +PURPOSE, OR NON-INFRINGEMENT. SOME JURISDICTIONS DO NOT ALLOW THE |
| 30 | +EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY NOT |
| 31 | +APPLY TO YOU. IN NO EVENT WILL I BE LIABLE TO ANY PARTY FOR ANY |
| 32 | +DIRECT, INDIRECT, SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY |
| 33 | +USE OF THIS MATERIAL INCLUDING, WITHOUT LIMITATION, ANY LOST |
| 34 | +PROFITS, BUSINESS INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON |
| 35 | +YOUR INFORMATION HANDLING SYSTEM OR OTHERWISE, EVEN If WE ARE |
| 36 | +EXPRESSLY ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 37 | +*/ |
| 38 | +#ifndef __GETOPT_H_ |
| 39 | + #define __GETOPT_H_ |
| 40 | + |
| 41 | + #ifdef _GETOPT_API |
| 42 | + #undef _GETOPT_API |
| 43 | + #endif |
| 44 | + |
| 45 | + #if defined(EXPORTS_GETOPT) && defined(STATIC_GETOPT) |
| 46 | + #error "The preprocessor definitions of EXPORTS_GETOPT and STATIC_GETOPT can only be used individually" |
| 47 | + #elif defined(STATIC_GETOPT) |
| 48 | + #pragma message("Warning static builds of getopt violate the Lesser GNU Public License") |
| 49 | + #define _GETOPT_API |
| 50 | + #elif defined(EXPORTS_GETOPT) |
| 51 | + #pragma message("Exporting getopt library") |
| 52 | + #define _GETOPT_API __declspec(dllexport) |
| 53 | + #else |
| 54 | + #pragma message("Importing getopt library") |
| 55 | + #define _GETOPT_API __declspec(dllimport) |
| 56 | + #endif |
| 57 | + |
| 58 | + // Change behavior for C\C++ |
| 59 | + #ifdef __cplusplus |
| 60 | + #define _BEGIN_EXTERN_C extern "C" { |
| 61 | + #define _END_EXTERN_C } |
| 62 | + #define _GETOPT_THROW throw() |
| 63 | + #else |
| 64 | + #define _BEGIN_EXTERN_C |
| 65 | + #define _END_EXTERN_C |
| 66 | + #define _GETOPT_THROW |
| 67 | + #endif |
| 68 | + |
| 69 | + // Standard GNU options |
| 70 | + #define null_argument 0 /*Argument Null*/ |
| 71 | + #define no_argument 0 /*Argument Switch Only*/ |
| 72 | + #define required_argument 1 /*Argument Required*/ |
| 73 | + #define optional_argument 2 /*Argument Optional*/ |
| 74 | + |
| 75 | + // Shorter Options |
| 76 | + #define ARG_NULL 0 /*Argument Null*/ |
| 77 | + #define ARG_NONE 0 /*Argument Switch Only*/ |
| 78 | + #define ARG_REQ 1 /*Argument Required*/ |
| 79 | + #define ARG_OPT 2 /*Argument Optional*/ |
| 80 | + |
| 81 | + #include <string.h> |
| 82 | + #include <wchar.h> |
| 83 | + |
| 84 | +_BEGIN_EXTERN_C |
| 85 | + |
| 86 | + extern _GETOPT_API int optind; |
| 87 | + extern _GETOPT_API int opterr; |
| 88 | + extern _GETOPT_API int optopt; |
| 89 | + |
| 90 | + // Ansi |
| 91 | + struct option_a |
| 92 | + { |
| 93 | + const char* name; |
| 94 | + int has_arg; |
| 95 | + int *flag; |
| 96 | + int val; |
| 97 | + }; |
| 98 | + extern _GETOPT_API char *optarg_a; |
| 99 | + extern _GETOPT_API int getopt_a(int argc, char *const *argv, const char *optstring) _GETOPT_THROW; |
| 100 | + extern _GETOPT_API int getopt_long_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW; |
| 101 | + extern _GETOPT_API int getopt_long_only_a(int argc, char *const *argv, const char *options, const struct option_a *long_options, int *opt_index) _GETOPT_THROW; |
| 102 | + |
| 103 | + // Unicode |
| 104 | + struct option_w |
| 105 | + { |
| 106 | + const wchar_t* name; |
| 107 | + int has_arg; |
| 108 | + int *flag; |
| 109 | + int val; |
| 110 | + }; |
| 111 | + extern _GETOPT_API wchar_t *optarg_w; |
| 112 | + extern _GETOPT_API int getopt_w(int argc, wchar_t *const *argv, const wchar_t *optstring) _GETOPT_THROW; |
| 113 | + extern _GETOPT_API int getopt_long_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW; |
| 114 | + extern _GETOPT_API int getopt_long_only_w(int argc, wchar_t *const *argv, const wchar_t *options, const struct option_w *long_options, int *opt_index) _GETOPT_THROW; |
| 115 | + |
| 116 | +_END_EXTERN_C |
| 117 | + |
| 118 | + #undef _BEGIN_EXTERN_C |
| 119 | + #undef _END_EXTERN_C |
| 120 | + #undef _GETOPT_THROW |
| 121 | + #undef _GETOPT_API |
| 122 | + |
| 123 | + #ifdef _UNICODE |
| 124 | + #define getopt getopt_w |
| 125 | + #define getopt_long getopt_long_w |
| 126 | + #define getopt_long_only getopt_long_only_w |
| 127 | + #define option option_w |
| 128 | + #define optarg optarg_w |
| 129 | + #else |
| 130 | + #define getopt getopt_a |
| 131 | + #define getopt_long getopt_long_a |
| 132 | + #define getopt_long_only getopt_long_only_a |
| 133 | + #define option option_a |
| 134 | + #define optarg optarg_a |
| 135 | + #endif |
| 136 | +#endif // __GETOPT_H_ |
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