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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1905 | serge | 1 | /* |
| 2 | compat: Some compatibility functions and header inclusions. |
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| 3 | Basic standard C stuff, that may barely be above/around C89. |
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| 4 | |||
| 5 | The mpg123 code is determined to keep it's legacy. A legacy of old, old UNIX. |
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| 6 | It is envisioned to include this compat header instead of any of the "standard" headers, to catch compatibility issues. |
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| 7 | So, don't include stdlib.h or string.h ... include compat.h. |
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| 8 | |||
| 9 | copyright 2007-8 by the mpg123 project - free software under the terms of the LGPL 2.1 |
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| 10 | see COPYING and AUTHORS files in distribution or http://mpg123.org |
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| 11 | initially written by Thomas Orgis |
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| 12 | */ |
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| 13 | |||
| 14 | #ifndef MPG123_COMPAT_H |
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| 15 | #define MPG123_COMPAT_H |
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| 16 | |||
| 17 | #include "config.h" |
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| 18 | |||
| 19 | #ifdef HAVE_STDLIB_H |
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| 20 | /* realloc, size_t */ |
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| 21 | #include |
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| 22 | #endif |
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| 23 | |||
| 24 | #include |
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| 25 | #include |
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| 26 | |||
| 27 | #ifdef HAVE_SIGNAL_H |
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| 28 | #include |
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| 29 | #else |
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| 30 | #ifdef HAVE_SYS_SIGNAL_H |
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| 31 | #include |
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| 32 | #endif |
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| 33 | #endif |
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| 34 | |||
| 35 | #ifdef HAVE_UNISTD_H |
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| 36 | #include |
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| 37 | #endif |
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| 38 | |||
| 39 | /* Types, types, types. */ |
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| 40 | /* Do we actually need these two in addition to sys/types.h? As replacement? */ |
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| 41 | #ifdef HAVE_SYS_TYPES_H |
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| 42 | #include |
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| 43 | #endif |
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| 44 | #ifdef HAVE_INTTYPES_H |
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| 45 | #include |
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| 46 | #endif |
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| 47 | #ifdef HAVE_STDINT_H |
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| 48 | #include |
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| 49 | #endif |
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| 50 | /* We want SIZE_MAX, etc. */ |
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| 51 | #ifdef HAVE_LIMITS_H |
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| 52 | #include |
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| 53 | #endif |
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| 54 | |||
| 55 | #ifndef SIZE_MAX |
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| 56 | #define SIZE_MAX ((size_t)-1) |
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| 57 | #endif |
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| 58 | #ifndef ULONG_MAX |
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| 59 | #define ULONG_MAX ((unsigned long)-1) |
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| 60 | #endif |
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| 61 | |||
| 62 | #ifdef HAVE_STRING_H |
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| 63 | #include |
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| 64 | #endif |
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| 65 | |||
| 66 | #ifdef OS2 |
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| 67 | #include |
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| 68 | #endif |
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| 69 | |||
| 70 | #ifdef HAVE_SYS_TIME_H |
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| 71 | #include |
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| 72 | #endif |
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| 73 | /* For select(), I need select.h according to POSIX 2001, else: sys/time.h sys/types.h unistd.h */ |
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| 74 | #ifdef HAVE_SYS_SELECT_H |
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| 75 | #include |
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| 76 | #endif |
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| 77 | |||
| 78 | /* To parse big numbers... */ |
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| 79 | #ifdef HAVE_ATOLL |
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| 80 | #define atobigint atoll |
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| 81 | #else |
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| 82 | #define atobigint atol |
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| 83 | #endif |
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| 84 | |||
| 85 | typedef unsigned char byte; |
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| 86 | |||
| 87 | /* A safe realloc also for very old systems where realloc(NULL, size) returns NULL. */ |
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| 88 | void *safe_realloc(void *ptr, size_t size); |
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| 89 | #ifndef HAVE_STRERROR |
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| 90 | const char *strerror(int errnum); |
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| 91 | #endif |
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| 92 | |||
| 93 | #ifndef HAVE_STRDUP |
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| 94 | char *strdup(const char *s); |
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| 95 | #endif |
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| 96 | |||
| 97 | /* If we have the size checks enabled, try to derive some sane printfs. |
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| 98 | Simple start: Use max integer type and format if long is not big enough. |
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| 99 | I am hesitating to use %ll without making sure that it's there... */ |
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| 100 | #if !(defined PLAIN_C89) && (defined SIZEOF_OFF_T) && (SIZEOF_OFF_T > SIZEOF_LONG) && (defined PRIiMAX) |
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| 101 | # define OFF_P PRIiMAX |
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| 102 | typedef intmax_t off_p; |
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| 103 | #else |
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| 104 | # define OFF_P "li" |
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| 105 | typedef long off_p; |
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| 106 | #endif |
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| 107 | |||
| 108 | #if !(defined PLAIN_C89) && (defined SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > SIZEOF_LONG) && (defined PRIuMAX) |
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| 109 | # define SIZE_P PRIuMAX |
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| 110 | typedef uintmax_t size_p; |
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| 111 | #else |
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| 112 | # define SIZE_P "lu" |
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| 113 | typedef unsigned long size_p; |
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| 114 | #endif |
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| 115 | |||
| 116 | #if !(defined PLAIN_C89) && (defined SIZEOF_SSIZE_T) && (SIZEOF_SSIZE_T > SIZEOF_LONG) && (defined PRIiMAX) |
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| 117 | # define SSIZE_P PRIuMAX |
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| 118 | typedef intmax_t ssize_p; |
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| 119 | #else |
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| 120 | # define SSIZE_P "li" |
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| 121 | typedef long ssize_p; |
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| 122 | #endif |
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| 123 | |||
| 124 | #endif |