151 lines
3.8 KiB
C
151 lines
3.8 KiB
C
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/*
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* Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
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* Redistribution and modifications are permitted subject to BSD license.
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*/
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/*
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* Miscellaneous system-dependent types.
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*/
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#ifndef ASN_SYSTEM_H
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#define ASN_SYSTEM_H
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifndef _DEFAULT_SOURCE
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#define _DEFAULT_SOURCE 1
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#endif
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#ifndef _BSD_SOURCE
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#define _BSD_SOURCE /* for snprintf() on some linux systems */
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#endif
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#include <stdio.h> /* For snprintf(3) */
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#include <stdlib.h> /* For *alloc(3) */
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#include <string.h> /* For memcpy(3) */
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#include <sys/types.h> /* For size_t */
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#include <limits.h> /* For LONG_MAX */
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#include <stdarg.h> /* For va_start */
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#include <stddef.h> /* for offsetof and ptrdiff_t */
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#ifdef _WIN32
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#include <malloc.h>
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#define snprintf _snprintf
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#define vsnprintf _vsnprintf
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/* To avoid linking with ws2_32.lib, here's the definition of ntohl() */
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#define sys_ntohl(l) ((((l) << 24) & 0xff000000) \
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| (((l) << 8) & 0xff0000) \
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| (((l) >> 8) & 0xff00) \
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| ((l >> 24) & 0xff))
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#ifdef _MSC_VER /* MSVS.Net */
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#ifndef __cplusplus
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#define inline __inline
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#endif
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#ifndef ASSUMESTDTYPES /* Standard types have been defined elsewhere */
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#define ssize_t SSIZE_T
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#if _MSC_VER < 1600
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typedef char int8_t;
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typedef short int16_t;
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typedef int int32_t;
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typedef unsigned char uint8_t;
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typedef unsigned short uint16_t;
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typedef unsigned int uint32_t;
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#else /* _MSC_VER >= 1600 */
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#include <stdint.h>
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#endif /* _MSC_VER < 1600 */
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#endif /* ASSUMESTDTYPES */
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <float.h>
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#define isnan _isnan
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#define finite _finite
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#define copysign _copysign
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#define ilogb _logb
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#else /* !_MSC_VER */
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#include <stdint.h>
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#endif /* _MSC_VER */
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#else /* !_WIN32 */
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#if defined(__vxworks)
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#include <types/vxTypes.h>
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#else /* !defined(__vxworks) */
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#include <inttypes.h> /* C99 specifies this file */
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#include <netinet/in.h> /* for ntohl() */
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#define sys_ntohl(foo) ntohl(foo)
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#endif /* defined(__vxworks) */
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#endif /* _WIN32 */
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#if __GNUC__ >= 3 || defined(__clang__)
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#define CC_ATTRIBUTE(attr) __attribute__((attr))
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#else
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#define CC_ATTRIBUTE(attr)
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#endif
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#define CC_PRINTFLIKE(fmt, var) CC_ATTRIBUTE(format(printf, fmt, var))
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#define CC_NOTUSED CC_ATTRIBUTE(unused)
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#ifndef CC_ATTR_NO_SANITIZE
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#define CC_ATTR_NO_SANITIZE(what) CC_ATTRIBUTE(no_sanitize(what))
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#endif
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/* Figure out if thread safety is requested */
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#if !defined(ASN_THREAD_SAFE) && (defined(THREAD_SAFE) || defined(_REENTRANT))
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#define ASN_THREAD_SAFE
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#endif /* Thread safety */
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#ifndef offsetof /* If not defined by <stddef.h> */
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#define offsetof(s, m) ((ptrdiff_t)&(((s *)0)->m) - (ptrdiff_t)((s *)0))
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#endif /* offsetof */
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#ifndef MIN /* Suitable for comparing primitive types (integers) */
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#if defined(__GNUC__)
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#define MIN(a,b) ({ __typeof a _a = a; __typeof b _b = b; \
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((_a)<(_b)?(_a):(_b)); })
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#else /* !__GNUC__ */
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#define MIN(a,b) ((a)<(b)?(a):(b)) /* Unsafe variant */
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#endif /* __GNUC__ */
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#endif /* MIN */
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#if __STDC_VERSION__ >= 199901L
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#ifndef SIZE_MAX
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#define SIZE_MAX ((~((size_t)0)) >> 1)
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#endif
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#ifndef RSIZE_MAX /* C11, Annex K */
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#define RSIZE_MAX (SIZE_MAX >> 1)
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#endif
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#ifndef RSSIZE_MAX /* Halve signed size even further than unsigned */
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#define RSSIZE_MAX ((ssize_t)(RSIZE_MAX >> 1))
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#endif
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#else /* Old compiler */
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#undef SIZE_MAX
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#undef RSIZE_MAX
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#undef RSSIZE_MAX
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#define SIZE_MAX ((~((size_t)0)) >> 1)
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#define RSIZE_MAX (SIZE_MAX >> 1)
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#define RSSIZE_MAX ((ssize_t)(RSIZE_MAX >> 1))
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#endif
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#if __STDC_VERSION__ >= 199901L
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#define ASN_PRI_SIZE "zu"
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#define ASN_PRI_SSIZE "zd"
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#define ASN_PRIuMAX PRIuMAX
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#define ASN_PRIdMAX PRIdMAX
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#else
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#define ASN_PRI_SIZE "lu"
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#define ASN_PRI_SSIZE "ld"
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#if LLONG_MAX > LONG_MAX
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#define ASN_PRIuMAX "llu"
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#define ASN_PRIdMAX "lld"
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#else
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#define ASN_PRIuMAX "lu"
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#define ASN_PRIdMAX "ld"
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#endif
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#endif
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#endif /* ASN_SYSTEM_H */
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