1 /* 2 * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved. 3 * Redistribution and modifications are permitted subject to BSD license. 4 */ 5 /* 6 * Miscellaneous system-dependent types. 7 */ 8 #ifndef ASN_SYSTEM_H 9 #define ASN_SYSTEM_H 10 11 #ifdef HAVE_CONFIG_H 12 #include "config.h" 13 #endif 14 15 #ifndef _DEFAULT_SOURCE 16 #define _DEFAULT_SOURCE 1 17 #endif 18 19 #ifndef _BSD_SOURCE 20 #define _BSD_SOURCE /* for snprintf() on some linux systems */ 21 #endif 22 23 #include <stdio.h> /* For snprintf(3) */ 24 #include <stdlib.h> /* For *alloc(3) */ 25 #include <string.h> /* For memcpy(3) */ 26 #include <sys/types.h> /* For size_t */ 27 #include <limits.h> /* For LONG_MAX */ 28 #include <stdarg.h> /* For va_start */ 29 #include <stddef.h> /* for offsetof and ptrdiff_t */ 30 31 #ifdef _WIN32 32 33 #include <malloc.h> 34 #define snprintf _snprintf 35 #define vsnprintf _vsnprintf 36 37 /* To avoid linking with ws2_32.lib, here's the definition of ntohl() */ 38 #define sys_ntohl(l) ((((l) << 24) & 0xff000000) \ 39 | (((l) << 8) & 0xff0000) \ 40 | (((l) >> 8) & 0xff00) \ 41 | ((l >> 24) & 0xff)) 42 43 #ifdef _MSC_VER /* MSVS.Net */ 44 #ifndef __cplusplus 45 #define inline __inline 46 #endif 47 #ifndef ASSUMESTDTYPES /* Standard types have been defined elsewhere */ 48 #define ssize_t SSIZE_T 49 #if _MSC_VER < 1600 50 typedef char int8_t; 51 typedef short int16_t; 52 typedef int int32_t; 53 typedef unsigned char uint8_t; 54 typedef unsigned short uint16_t; 55 typedef unsigned int uint32_t; 56 #else /* _MSC_VER >= 1600 */ 57 #include <stdint.h> 58 #endif /* _MSC_VER < 1600 */ 59 #endif /* ASSUMESTDTYPES */ 60 #define WIN32_LEAN_AND_MEAN 61 #include <windows.h> 62 #include <float.h> 63 #define isnan _isnan 64 #define finite _finite 65 #define copysign _copysign 66 #define ilogb _logb 67 #else /* !_MSC_VER */ 68 #include <stdint.h> 69 #endif /* _MSC_VER */ 70 71 #else /* !_WIN32 */ 72 73 #if defined(__vxworks) 74 #include <types/vxTypes.h> 75 #else /* !defined(__vxworks) */ 76 77 #include <inttypes.h> /* C99 specifies this file */ 78 #include <netinet/in.h> /* for ntohl() */ 79 #define sys_ntohl(foo) ntohl(foo) 80 #endif /* defined(__vxworks) */ 81 82 #endif /* _WIN32 */ 83 84 #if __GNUC__ >= 3 || defined(__clang__) 85 #define CC_ATTRIBUTE(attr) __attribute__((attr)) 86 #else 87 #define CC_ATTRIBUTE(attr) 88 #endif 89 #define CC_PRINTFLIKE(fmt, var) CC_ATTRIBUTE(format(printf, fmt, var)) 90 #define CC_NOTUSED CC_ATTRIBUTE(unused) 91 #ifndef CC_ATTR_NO_SANITIZE 92 #define CC_ATTR_NO_SANITIZE(what) CC_ATTRIBUTE(no_sanitize(what)) 93 #endif 94 95 /* Figure out if thread safety is requested */ 96 #if !defined(ASN_THREAD_SAFE) && (defined(THREAD_SAFE) || defined(_REENTRANT)) 97 #define ASN_THREAD_SAFE 98 #endif /* Thread safety */ 99 100 #ifndef offsetof /* If not defined by <stddef.h> */ 101 #define offsetof(s, m) ((ptrdiff_t)&(((s *)0)->m) - (ptrdiff_t)((s *)0)) 102 #endif /* offsetof */ 103 104 #ifndef MIN /* Suitable for comparing primitive types (integers) */ 105 #if defined(__GNUC__) 106 #define MIN(a,b) ({ __typeof a _a = a; __typeof b _b = b; \ 107 ((_a)<(_b)?(_a):(_b)); }) 108 #else /* !__GNUC__ */ 109 #define MIN(a,b) ((a)<(b)?(a):(b)) /* Unsafe variant */ 110 #endif /* __GNUC__ */ 111 #endif /* MIN */ 112 113 #if __STDC_VERSION__ >= 199901L 114 #ifndef SIZE_MAX 115 #define SIZE_MAX ((~((size_t)0)) >> 1) 116 #endif 117 118 #ifndef RSIZE_MAX /* C11, Annex K */ 119 #define RSIZE_MAX (SIZE_MAX >> 1) 120 #endif 121 #ifndef RSSIZE_MAX /* Halve signed size even further than unsigned */ 122 #define RSSIZE_MAX ((ssize_t)(RSIZE_MAX >> 1)) 123 #endif 124 #else /* Old compiler */ 125 #undef SIZE_MAX 126 #undef RSIZE_MAX 127 #undef RSSIZE_MAX 128 #define SIZE_MAX ((~((size_t)0)) >> 1) 129 #define RSIZE_MAX (SIZE_MAX >> 1) 130 #define RSSIZE_MAX ((ssize_t)(RSIZE_MAX >> 1)) 131 #endif 132 133 #if __STDC_VERSION__ >= 199901L 134 #define ASN_PRI_SIZE "zu" 135 #define ASN_PRI_SSIZE "zd" 136 #define ASN_PRIuMAX PRIuMAX 137 #define ASN_PRIdMAX PRIdMAX 138 #else 139 #define ASN_PRI_SIZE "lu" 140 #define ASN_PRI_SSIZE "ld" 141 #if LLONG_MAX > LONG_MAX 142 #define ASN_PRIuMAX "llu" 143 #define ASN_PRIdMAX "lld" 144 #else 145 #define ASN_PRIuMAX "lu" 146 #define ASN_PRIdMAX "ld" 147 #endif 148 #endif 149 150 #endif /* ASN_SYSTEM_H */ 151