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| 1 | /* |
1 | /* |
| 2 | compat: Some compatibility functions and header inclusions. |
2 | compat: Some compatibility functions and header inclusions. |
| 3 | Basic standard C stuff, that may barely be above/around C89. |
3 | Basic standard C stuff, that may barely be above/around C89. |
| 4 | 4 | ||
| 5 | The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX. |
5 | The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX. |
| 6 | It is envisioned to include this compat header instead of any of the "standard" headers, to catch compatibility issues. |
6 | It is envisioned to include this compat header instead of any of the "standard" headers, to catch compatibility issues. |
| 7 | So, don't include stdlib.h or string.h ... include compat.h. |
7 | So, don't include stdlib.h or string.h ... include compat.h. |
| 8 | 8 | ||
| 9 | copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 |
9 | copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 |
| 10 | see COPYING and AUTHORS files in distribution or http://mpg123.org |
10 | see COPYING and AUTHORS files in distribution or http://mpg123.org |
| 11 | initially written by Thomas Orgis |
11 | initially written by Thomas Orgis |
| 12 | */ |
12 | */ |
| 13 | 13 | ||
| 14 | #ifndef MPG123_COMPAT_H |
14 | #ifndef MPG123_COMPAT_H |
| 15 | #define MPG123_COMPAT_H |
15 | #define MPG123_COMPAT_H |
| 16 | 16 | ||
| 17 | #include "config.h" |
17 | #include "config.h" |
| - | 18 | #include "intsym.h" |
|
| 18 | 19 | ||
| 19 | #ifdef HAVE_STDLIB_H |
20 | #ifdef HAVE_STDLIB_H |
| 20 | /* realloc, size_t */ |
21 | /* realloc, size_t */ |
| 21 | #include |
22 | #include |
| 22 | #endif |
23 | #endif |
| 23 | 24 | ||
| 24 | #include |
25 | #include |
| 25 | #include |
26 | #include |
| 26 | 27 | ||
| 27 | #ifdef HAVE_SIGNAL_H |
28 | #ifdef HAVE_SIGNAL_H |
| 28 | #include |
29 | #include |
| 29 | #else |
30 | #else |
| 30 | #ifdef HAVE_SYS_SIGNAL_H |
31 | #ifdef HAVE_SYS_SIGNAL_H |
| 31 | #include |
32 | #include |
| 32 | #endif |
33 | #endif |
| 33 | #endif |
34 | #endif |
| 34 | 35 | ||
| 35 | #ifdef HAVE_UNISTD_H |
36 | #ifdef HAVE_UNISTD_H |
| 36 | #include |
37 | #include |
| 37 | #endif |
38 | #endif |
| 38 | 39 | ||
| 39 | /* Types, types, types. */ |
40 | /* Types, types, types. */ |
| 40 | /* Do we actually need these two in addition to sys/types.h? As replacement? */ |
41 | /* Do we actually need these two in addition to sys/types.h? As replacement? */ |
| 41 | #ifdef HAVE_SYS_TYPES_H |
42 | #ifdef HAVE_SYS_TYPES_H |
| 42 | #include |
43 | #include |
| 43 | #endif |
44 | #endif |
| 44 | #ifdef HAVE_INTTYPES_H |
45 | #ifdef HAVE_INTTYPES_H |
| 45 | #include |
46 | #include |
| 46 | #endif |
47 | #endif |
| 47 | #ifdef HAVE_STDINT_H |
48 | #ifdef HAVE_STDINT_H |
| 48 | #include |
49 | #include |
| 49 | #endif |
50 | #endif |
| 50 | /* We want SIZE_MAX, etc. */ |
51 | /* We want SIZE_MAX, etc. */ |
| 51 | #ifdef HAVE_LIMITS_H |
52 | #ifdef HAVE_LIMITS_H |
| 52 | #include |
53 | #include |
| 53 | #endif |
54 | #endif |
| 54 | 55 | ||
| 55 | #ifndef SIZE_MAX |
56 | #ifndef SIZE_MAX |
| 56 | #define SIZE_MAX ((size_t)-1) |
57 | #define SIZE_MAX ((size_t)-1) |
| 57 | #endif |
58 | #endif |
| 58 | #ifndef ULONG_MAX |
59 | #ifndef ULONG_MAX |
| 59 | #define ULONG_MAX ((unsigned long)-1) |
60 | #define ULONG_MAX ((unsigned long)-1) |
| 60 | #endif |
61 | #endif |
| 61 | 62 | ||
| 62 | #ifdef HAVE_STRING_H |
63 | #ifdef HAVE_STRING_H |
| 63 | #include |
64 | #include |
| 64 | #endif |
65 | #endif |
| 65 | 66 | ||
| 66 | #ifdef OS2 |
67 | #ifdef OS2 |
| 67 | #include |
68 | #include |
| 68 | #endif |
69 | #endif |
| 69 | 70 | ||
| 70 | #ifdef HAVE_SYS_TIME_H |
71 | #ifdef HAVE_SYS_TIME_H |
| 71 | #include |
72 | #include |
| 72 | #endif |
73 | #endif |
| 73 | /* For select(), I need select.h according to POSIX 2001, else: sys/time.h sys/types.h unistd.h */ |
74 | /* For select(), I need select.h according to POSIX 2001, else: sys/time.h sys/types.h unistd.h */ |
| 74 | #ifdef HAVE_SYS_SELECT_H |
75 | #ifdef HAVE_SYS_SELECT_H |
| 75 | #include |
76 | #include |
| 76 | #endif |
77 | #endif |
| 77 | 78 | ||
| 78 | /* To parse big numbers... */ |
79 | /* To parse big numbers... */ |
| 79 | #ifdef HAVE_ATOLL |
80 | #ifdef HAVE_ATOLL |
| 80 | #define atobigint atoll |
81 | #define atobigint atoll |
| 81 | #else |
82 | #else |
| 82 | #define atobigint atol |
83 | #define atobigint atol |
| 83 | #endif |
84 | #endif |
| 84 | 85 | ||
| 85 | typedef unsigned char byte; |
86 | typedef unsigned char byte; |
| 86 | 87 | ||
| 87 | /* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ |
88 | /* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ |
| 88 | void *safe_realloc(void *ptr, size_t size); |
89 | void *safe_realloc(void *ptr, size_t size); |
| 89 | #ifndef HAVE_STRERROR |
90 | #ifndef HAVE_STRERROR |
| 90 | const char *strerror(int errnum); |
91 | const char *strerror(int errnum); |
| 91 | #endif |
92 | #endif |
| 92 | 93 | ||
| 93 | #ifndef HAVE_STRDUP |
94 | #ifndef HAVE_STRDUP |
| 94 | char *strdup(const char *s); |
95 | char *strdup(const char *s); |
| 95 | #endif |
96 | #endif |
| 96 | 97 | ||
| 97 | /* If we have the size checks enabled, try to derive some sane printfs. |
98 | /* If we have the size checks enabled, try to derive some sane printfs. |
| 98 | Simple start: Use max integer type and format if long is not big enough. |
99 | Simple start: Use max integer type and format if long is not big enough. |
| 99 | I am hesitating to use %ll without making sure that it's there... */ |
100 | I am hesitating to use %ll without making sure that it's there... */ |
| 100 | #if !(defined PLAIN_C89) && (defined SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG) && (defined PRIiMAX) |
101 | #if !(defined PLAIN_C89) && (defined SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG) && (defined PRIiMAX) |
| 101 | # define OFF_P PRIiMAX |
102 | # define OFF_P PRIiMAX |
| 102 | typedef intmax_t off_p; |
103 | typedef intmax_t off_p; |
| 103 | #else |
104 | #else |
| 104 | # define OFF_P "li" |
105 | # define OFF_P "li" |
| 105 | typedef long off_p; |
106 | typedef long off_p; |
| 106 | #endif |
107 | #endif |
| 107 | 108 | ||
| 108 | #if !(defined PLAIN_C89) && (defined SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > SIZEOF_LONG) && (defined PRIuMAX) |
109 | #if !(defined PLAIN_C89) && (defined SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > SIZEOF_LONG) && (defined PRIuMAX) |
| 109 | # define SIZE_P PRIuMAX |
110 | # define SIZE_P PRIuMAX |
| 110 | typedef uintmax_t size_p; |
111 | typedef uintmax_t size_p; |
| 111 | #else |
112 | #else |
| 112 | # define SIZE_P "lu" |
113 | # define SIZE_P "lu" |
| 113 | typedef unsigned long size_p; |
114 | typedef unsigned long size_p; |
| 114 | #endif |
115 | #endif |
| 115 | 116 | ||
| 116 | #if !(defined PLAIN_C89) && (defined SIZEOF_SSIZE_T) && (SIZEOF_SSIZE_T > SIZEOF_LONG) && (defined PRIiMAX) |
117 | #if !(defined PLAIN_C89) && (defined SIZEOF_SSIZE_T) && (SIZEOF_SSIZE_T > SIZEOF_LONG) && (defined PRIiMAX) |
| 117 | # define SSIZE_P PRIuMAX |
118 | # define SSIZE_P PRIuMAX |
| 118 | typedef intmax_t ssize_p; |
119 | typedef intmax_t ssize_p; |
| 119 | #else |
120 | #else |
| 120 | # define SSIZE_P "li" |
121 | # define SSIZE_P "li" |
| 121 | typedef long ssize_p; |
122 | typedef long ssize_p; |
| 122 | #endif |
123 | #endif |
| - | 124 | ||
| - | 125 | /** |
|
| - | 126 | * Opening a file handle can be different. |
|
| - | 127 | * This function here is defined to take a path in native encoding (ISO8859 / UTF-8 / ...), or, when MS Windows Unicode support is enabled, an UTF-8 string that will be converted back to native UCS-2 (wide character) before calling the system's open function. |
|
| - | 128 | * @param[in] wptr Pointer to wide string. |
|
| - | 129 | * @param[in] mbptr Pointer to multibyte string. |
|
| - | 130 | * @return file descriptor (>=0) or error code. |
|
| - | 131 | */ |
|
| - | 132 | int compat_open(const char *filename, int flags); |
|
| - | 133 | ||
| - | 134 | /** |
|
| - | 135 | * Closing a file handle can be platform specific. |
|
| - | 136 | * This function takes a file descriptor that is to be closed. |
|
| - | 137 | * @param[in] infd File descriptor to be closed. |
|
| - | 138 | * @return 0 if the file was successfully closed. A return value of -1 indicates an error. |
|
| - | 139 | */ |
|
| - | 140 | int compat_close(int infd); |
|
| - | 141 | ||
| - | 142 | /* Those do make sense in a separate file, but I chose to include them in compat.c because that's the one source whose object is shared between mpg123 and libmpg123 -- and both need the functionality internally. */ |
|
| - | 143 | ||
| - | 144 | #ifdef WANT_WIN32_UNICODE |
|
| - | 145 | /** |
|
| - | 146 | * win32_uni2mbc |
|
| - | 147 | * Converts a null terminated UCS-2 string to a multibyte (UTF-8) equivalent. |
|
| - | 148 | * Caller is supposed to free allocated buffer. |
|
| - | 149 | * @param[in] wptr Pointer to wide string. |
|
| - | 150 | * @param[out] mbptr Pointer to multibyte string. |
|
| - | 151 | * @param[out] buflen Optional parameter for length of allocated buffer. |
|
| - | 152 | * @return status of WideCharToMultiByte conversion. |
|
| - | 153 | * |
|
| - | 154 | * WideCharToMultiByte - http://msdn.microsoft.com/en-us/library/dd374130(VS.85).aspx |
|
| - | 155 | */ |
|
| - | 156 | int win32_wide_utf8(const wchar_t * const wptr, char **mbptr, size_t * buflen); |
|
| - | 157 | ||
| - | 158 | /** |
|
| - | 159 | * win32_mbc2uni |
|
| - | 160 | * Converts a null terminated UTF-8 string to a UCS-2 equivalent. |
|
| - | 161 | * Caller is supposed to free allocated buffer. |
|
| - | 162 | * @param[out] mbptr Pointer to multibyte string. |
|
| - | 163 | * @param[in] wptr Pointer to wide string. |
|
| - | 164 | * @param[out] buflen Optional parameter for length of allocated buffer. |
|
| - | 165 | * @return status of WideCharToMultiByte conversion. |
|
| - | 166 | * |
|
| - | 167 | * MultiByteToWideChar - http://msdn.microsoft.com/en-us/library/dd319072(VS.85).aspx |
|
| - | 168 | */ |
|
| - | 169 | ||
| - | 170 | int win32_utf8_wide(const char *const mbptr, wchar_t **wptr, size_t *buflen); |
|
| - | 171 | #endif |
|
| - | 172 | ||
| - | 173 | /* That one comes from Tellie on OS/2, needed in resolver. */ |
|
| - | 174 | #ifdef __KLIBC__ |
|
| - | 175 | typedef int socklen_t; |
|
| - | 176 | #endif |
|
| 123 | 177 | ||
| 124 | #endif |
178 | #endif |