Rev 1905 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1905 | serge | 1 | /* |
| 2 | compat: Some compatibility functions and header inclusions. |
||
| 3 | Basic standard C stuff, that may barely be above/around C89. |
||
| 4 | |||
| 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. |
||
| 7 | So, don't include stdlib.h or string.h ... include compat.h. |
||
| 8 | |||
| 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 |
||
| 11 | initially written by Thomas Orgis |
||
| 12 | */ |
||
| 13 | |||
| 14 | #ifndef MPG123_COMPAT_H |
||
| 15 | #define MPG123_COMPAT_H |
||
| 16 | |||
| 17 | #include "config.h" |
||
| 3960 | Serge | 18 | #include "intsym.h" |
| 1905 | serge | 19 | |
| 20 | #ifdef HAVE_STDLIB_H |
||
| 21 | /* realloc, size_t */ |
||
| 22 | #include |
||
| 23 | #endif |
||
| 24 | |||
| 25 | #include |
||
| 26 | #include |
||
| 27 | |||
| 28 | #ifdef HAVE_SIGNAL_H |
||
| 29 | #include |
||
| 30 | #else |
||
| 31 | #ifdef HAVE_SYS_SIGNAL_H |
||
| 32 | #include |
||
| 33 | #endif |
||
| 34 | #endif |
||
| 35 | |||
| 36 | #ifdef HAVE_UNISTD_H |
||
| 37 | #include |
||
| 38 | #endif |
||
| 39 | |||
| 40 | /* Types, types, types. */ |
||
| 41 | /* Do we actually need these two in addition to sys/types.h? As replacement? */ |
||
| 42 | #ifdef HAVE_SYS_TYPES_H |
||
| 43 | #include |
||
| 44 | #endif |
||
| 45 | #ifdef HAVE_INTTYPES_H |
||
| 46 | #include |
||
| 47 | #endif |
||
| 48 | #ifdef HAVE_STDINT_H |
||
| 49 | #include |
||
| 50 | #endif |
||
| 51 | /* We want SIZE_MAX, etc. */ |
||
| 52 | #ifdef HAVE_LIMITS_H |
||
| 53 | #include |
||
| 54 | #endif |
||
| 55 | |||
| 56 | #ifndef SIZE_MAX |
||
| 57 | #define SIZE_MAX ((size_t)-1) |
||
| 58 | #endif |
||
| 59 | #ifndef ULONG_MAX |
||
| 60 | #define ULONG_MAX ((unsigned long)-1) |
||
| 61 | #endif |
||
| 62 | |||
| 63 | #ifdef HAVE_STRING_H |
||
| 64 | #include |
||
| 65 | #endif |
||
| 66 | |||
| 67 | #ifdef OS2 |
||
| 68 | #include |
||
| 69 | #endif |
||
| 70 | |||
| 71 | #ifdef HAVE_SYS_TIME_H |
||
| 72 | #include |
||
| 73 | #endif |
||
| 74 | /* For select(), I need select.h according to POSIX 2001, else: sys/time.h sys/types.h unistd.h */ |
||
| 75 | #ifdef HAVE_SYS_SELECT_H |
||
| 76 | #include |
||
| 77 | #endif |
||
| 78 | |||
| 79 | /* To parse big numbers... */ |
||
| 80 | #ifdef HAVE_ATOLL |
||
| 81 | #define atobigint atoll |
||
| 82 | #else |
||
| 83 | #define atobigint atol |
||
| 84 | #endif |
||
| 85 | |||
| 86 | typedef unsigned char byte; |
||
| 87 | |||
| 88 | /* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ |
||
| 89 | void *safe_realloc(void *ptr, size_t size); |
||
| 90 | #ifndef HAVE_STRERROR |
||
| 91 | const char *strerror(int errnum); |
||
| 92 | #endif |
||
| 93 | |||
| 94 | #ifndef HAVE_STRDUP |
||
| 95 | char *strdup(const char *s); |
||
| 96 | #endif |
||
| 97 | |||
| 98 | /* If we have the size checks enabled, try to derive some sane printfs. |
||
| 99 | Simple start: Use max integer type and format if long is not big enough. |
||
| 100 | I am hesitating to use %ll without making sure that it's there... */ |
||
| 101 | #if !(defined PLAIN_C89) && (defined SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG) && (defined PRIiMAX) |
||
| 102 | # define OFF_P PRIiMAX |
||
| 103 | typedef intmax_t off_p; |
||
| 104 | #else |
||
| 105 | # define OFF_P "li" |
||
| 106 | typedef long off_p; |
||
| 107 | #endif |
||
| 108 | |||
| 109 | #if !(defined PLAIN_C89) && (defined SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > SIZEOF_LONG) && (defined PRIuMAX) |
||
| 110 | # define SIZE_P PRIuMAX |
||
| 111 | typedef uintmax_t size_p; |
||
| 112 | #else |
||
| 113 | # define SIZE_P "lu" |
||
| 114 | typedef unsigned long size_p; |
||
| 115 | #endif |
||
| 116 | |||
| 117 | #if !(defined PLAIN_C89) && (defined SIZEOF_SSIZE_T) && (SIZEOF_SSIZE_T > SIZEOF_LONG) && (defined PRIiMAX) |
||
| 118 | # define SSIZE_P PRIuMAX |
||
| 119 | typedef intmax_t ssize_p; |
||
| 120 | #else |
||
| 121 | # define SSIZE_P "li" |
||
| 122 | typedef long ssize_p; |
||
| 123 | #endif |
||
| 124 | |||
| 3960 | Serge | 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); |
||
| 1905 | serge | 171 | #endif |
| 3960 | Serge | 172 | |
| 173 | /* That one comes from Tellie on OS/2, needed in resolver. */ |
||
| 174 | #ifdef __KLIBC__ |
||
| 175 | typedef int socklen_t; |
||
| 176 | #endif |
||
| 177 | |||
| 178 | #endif |