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Diffstat (limited to 'netdissect-stdinc.h')
| -rw-r--r-- | netdissect-stdinc.h | 409 |
1 files changed, 409 insertions, 0 deletions
diff --git a/netdissect-stdinc.h b/netdissect-stdinc.h new file mode 100644 index 0000000..8282c58 --- /dev/null +++ b/netdissect-stdinc.h @@ -0,0 +1,409 @@ +/* + * Copyright (c) 2002 - 2003 + * NetGroup, Politecnico di Torino (Italy) + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the Politecnico di Torino nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * Include the appropriate OS header files on Windows and various flavors + * of UNIX, include various non-OS header files on Windows, and define + * various items as needed, to isolate most of netdissect's platform + * differences to this one file. + */ + +#ifndef netdissect_stdinc_h +#define netdissect_stdinc_h + +#include <errno.h> + +#ifdef _WIN32 + +/* + * Includes and definitions for Windows. + */ + +#include <stdint.h> +#include <stdio.h> +#include <winsock2.h> +#include <ws2tcpip.h> +#include <ctype.h> +#include <time.h> +#include <io.h> +#include <fcntl.h> +#include <sys/types.h> + +#ifndef uint8_t +#define uint8_t unsigned char +#endif + +#ifndef int8_t +#define int8_t signed char +#endif + +#ifndef uint16_t +#define uint16_t unsigned short +#endif + +#ifndef int16_t +#define int16_t signed short +#endif + +#ifndef uint32_t +#define uint32_t unsigned int +#endif + +#ifndef int32_t +#define int32_t signed int +#endif + +#ifdef _MSC_EXTENSIONS + +#ifndef uint64_t +#define uint64_t unsigned _int64 +#endif + +#ifndef int64_t +#define int64_t _int64 +#endif + +#ifndef PRId64 +#define PRId64 "I64d" +#endif + +#ifndef PRIo64 +#define PRIo64 "I64o" +#endif + +#ifndef PRIu64 +#define PRIu64 "I64u" +#endif + +#ifndef PRIx64 +#define PRIx64 "I64x" +#endif + +#else /* _MSC_EXTENSIONS */ + +#ifndef uint64_t +#define uint64_t unsigned long long +#endif + +#ifndef int64_t +#define int64_t long long +#endif + +#ifndef PRId64 +#define PRId64 "lld" +#endif + +#ifndef PRIo64 +#define PRIo64 "llo" +#endif + +#ifndef PRIu64 +#define PRIu64 "llu" +#endif + +#ifndef PRIx64 +#define PRIx64 "llx" +#endif + +#endif /* _MSC_EXTENSIONS */ + +/* + * Suppress definition of intN_t in bittypes.h, as included by <pcap/pcap.h> + * on Windows. + * (Yes, HAVE_U_INTn_T, as the definition guards are UN*X-oriented, and + * we check for u_intN_t in the UN*X configure script.) + */ +#define HAVE_U_INT8_T +#define HAVE_U_INT16_T +#define HAVE_U_INT32_T +#define HAVE_U_INT64_T + +#ifdef _MSC_VER +#define stat _stat +#define open _open +#define fstat _fstat +#define read _read +#define close _close +#define O_RDONLY _O_RDONLY +#endif /* _MSC_VER */ + +/* + * With MSVC, for C, __inline is used to make a function an inline. + */ +#ifdef _MSC_VER +#define inline __inline +#endif + +#ifdef AF_INET6 +#define HAVE_OS_IPV6_SUPPORT +#endif + +#ifndef INET6_ADDRSTRLEN +#define INET6_ADDRSTRLEN 46 +#endif + +/* It is in MSVC's <errno.h>, but not defined in MingW+Watcom. + */ +#ifndef EAFNOSUPPORT +#define EAFNOSUPPORT WSAEAFNOSUPPORT +#endif + +#ifndef caddr_t +typedef char* caddr_t; +#endif /* caddr_t */ + +#define MAXHOSTNAMELEN 64 +#define snprintf _snprintf +#define vsnprintf _vsnprintf +#define RETSIGTYPE void + +#else /* _WIN32 */ + +/* + * Includes and definitions for various flavors of UN*X. + */ + +#include <ctype.h> +#include <unistd.h> +#include <netdb.h> +#if HAVE_INTTYPES_H +#include <inttypes.h> +#elif HAVE_STDINT_H +#include <stdint.h> +#endif +#include <sys/param.h> +#include <sys/types.h> /* concession to AIX */ +#include <sys/time.h> +#include <sys/socket.h> +#include <netinet/in.h> + +#ifdef TIME_WITH_SYS_TIME +#include <time.h> +#endif + +#include <arpa/inet.h> + +#endif /* _WIN32 */ + +#ifndef HAVE___ATTRIBUTE__ +#define __attribute__(x) +#endif + +/* + * Used to declare a structure unaligned, so that the C compiler, + * if necessary, generates code that doesn't assume alignment. + * This is required because there is no guarantee that the packet + * data we get from libpcap/WinPcap is properly aligned. + * + * This assumes that, for all compilers that support __attribute__: + * + * 1) they support __attribute__((packed)); + * + * 2) for all instruction set architectures requiring strict + * alignment, declaring a structure with that attribute + * causes the compiler to generate code that handles + * misaligned 2-byte, 4-byte, and 8-byte integral + * quantities. + * + * It does not (yet) handle compilers where you can get the compiler + * to generate code of that sort by some other means. + * + * This is required in order to, for example, keep the compiler from + * generating, for + * + * if (bp->bp_htype == 1 && bp->bp_hlen == 6 && bp->bp_op == BOOTPREQUEST) { + * + * in print-bootp.c, code that loads the first 4-byte word of a + * "struct bootp", masking out the bp_hops field, and comparing the result + * against 0x01010600. + * + * Note: this also requires that padding be put into the structure, + * at least for compilers where it's implemented as __attribute__((packed)). + */ +#if !(defined(_MSC_VER) && defined(UNALIGNED)) +/* MSVC may have its own macro defined with the same name and purpose. */ +#undef UNALIGNED +#define UNALIGNED __attribute__((packed)) +#endif + +/* + * fopen() read and write modes for text files and binary files. + */ +#if defined(_WIN32) || defined(MSDOS) + #define FOPEN_READ_TXT "rt" + #define FOPEN_READ_BIN "rb" + #define FOPEN_WRITE_TXT "wt" + #define FOPEN_WRITE_BIN "wb" +#else + #define FOPEN_READ_TXT "r" + #define FOPEN_READ_BIN FOPEN_READ_TXT + #define FOPEN_WRITE_TXT "w" + #define FOPEN_WRITE_BIN FOPEN_WRITE_TXT +#endif + +/* + * Inline x86 assembler-language versions of ntoh[ls]() and hton[ls](), + * defined if the OS doesn't provide them. These assume no more than + * an 80386, so, for example, it avoids the bswap instruction added in + * the 80486. + * + * (We don't use them on OS X; Apple provides their own, which *doesn't* + * avoid the bswap instruction, as OS X only supports machines that + * have it.) + */ +#if defined(__GNUC__) && defined(__i386__) && !defined(__APPLE__) && !defined(__ntohl) + #undef ntohl + #undef ntohs + #undef htonl + #undef htons + + static __inline__ unsigned long __ntohl (unsigned long x); + static __inline__ unsigned short __ntohs (unsigned short x); + + #define ntohl(x) __ntohl(x) + #define ntohs(x) __ntohs(x) + #define htonl(x) __ntohl(x) + #define htons(x) __ntohs(x) + + static __inline__ unsigned long __ntohl (unsigned long x) + { + __asm__ ("xchgb %b0, %h0\n\t" /* swap lower bytes */ + "rorl $16, %0\n\t" /* swap words */ + "xchgb %b0, %h0" /* swap higher bytes */ + : "=q" (x) : "0" (x)); + return (x); + } + + static __inline__ unsigned short __ntohs (unsigned short x) + { + __asm__ ("xchgb %b0, %h0" /* swap bytes */ + : "=q" (x) : "0" (x)); + return (x); + } +#endif + +/* + * If the OS doesn't define AF_INET6 and struct in6_addr: + * + * define AF_INET6, so we can use it internally as a "this is an + * IPv6 address" indication; + * + * define struct in6_addr so that we can use it for IPv6 addresses. + */ +#ifndef HAVE_OS_IPV6_SUPPORT +#ifndef AF_INET6 +#define AF_INET6 24 + +struct in6_addr { + union { + __uint8_t __u6_addr8[16]; + __uint16_t __u6_addr16[8]; + __uint32_t __u6_addr32[4]; + } __u6_addr; /* 128-bit IP6 address */ +}; +#endif +#endif + +#ifndef NI_MAXHOST +#define NI_MAXHOST 1025 +#endif + +#ifndef INET_ADDRSTRLEN +#define INET_ADDRSTRLEN 16 +#endif + +#ifndef TRUE +#define TRUE 1 +#endif + +#ifndef FALSE +#define FALSE 0 +#endif + +/* + * The Apple deprecation workaround macros below were adopted from the + * FreeRADIUS server code under permission of Alan DeKok and Arran Cudbard-Bell. + */ + +#define XSTRINGIFY(x) #x + +/* + * Macros for controlling warnings in GCC >= 4.2 and clang >= 2.8 + */ +#define DIAG_JOINSTR(x,y) XSTRINGIFY(x ## y) +#define DIAG_DO_PRAGMA(x) _Pragma (#x) + +#if defined(__GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402 +# define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(GCC diagnostic x) +# if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406 +# define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x)) +# define DIAG_ON(x) DIAG_PRAGMA(pop) +# else +# define DIAG_OFF(x) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x)) +# define DIAG_ON(x) DIAG_PRAGMA(warning DIAG_JOINSTR(-W,x)) +# endif +#elif defined(__clang__) && ((__clang_major__ * 100) + __clang_minor__ >= 208) +# define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(clang diagnostic x) +# define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x)) +# define DIAG_ON(x) DIAG_PRAGMA(pop) +#else +# define DIAG_OFF(x) +# define DIAG_ON(x) +#endif + +/* + * For dealing with APIs which are only deprecated in OSX (like the OpenSSL API) + */ +#ifdef __APPLE__ +# define USES_APPLE_DEPRECATED_API DIAG_OFF(deprecated-declarations) +# define USES_APPLE_RST DIAG_ON(deprecated-declarations) +#else +# define USES_APPLE_DEPRECATED_API +# define USES_APPLE_RST +#endif + +/* + * end of Apple deprecation workaround macros + */ + +/* + * Function attributes, for various compilers. + */ +#include "funcattrs.h" + +#ifndef min +#define min(a,b) ((a)>(b)?(b):(a)) +#endif +#ifndef max +#define max(a,b) ((b)>(a)?(b):(a)) +#endif + +#endif /* netdissect_stdinc_h */ |