353 lines
8.8 KiB
C
353 lines
8.8 KiB
C
/*
|
|
* 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 tcpdump's platform
|
|
* differences to this one file.
|
|
*/
|
|
|
|
#ifndef tcpdump_stdinc_h
|
|
#define tcpdump_stdinc_h
|
|
|
|
#include <errno.h>
|
|
|
|
#ifdef WIN32
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <winsock2.h>
|
|
#include <ws2tcpip.h>
|
|
#include "bittypes.h" /* in wpcap's Win32/include */
|
|
#include <ctype.h>
|
|
#include <time.h>
|
|
#include <io.h>
|
|
#include <fcntl.h>
|
|
#include <sys/types.h>
|
|
#include <net/netdb.h> /* in wpcap's Win32/include */
|
|
|
|
#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 */
|
|
|
|
#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 */
|
|
|
|
/* Protos for missing/x.c functions (ideally <missing/addrinfo.h>
|
|
* should be used, but it clashes with <ws2tcpip.h>).
|
|
*/
|
|
extern const char *inet_ntop (int, const void *, char *, size_t);
|
|
extern int inet_pton (int, const char *, void *);
|
|
extern int inet_aton (const char *cp, struct in_addr *addr);
|
|
|
|
/*
|
|
* With MSVC, for C, __inline is used to make a function an inline.
|
|
*/
|
|
#ifdef _MSC_VER
|
|
#define inline __inline
|
|
#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 NI_MAXHOST 1025
|
|
#define snprintf _snprintf
|
|
#define vsnprintf _vsnprintf
|
|
#define RETSIGTYPE void
|
|
|
|
#else /* WIN32 */
|
|
|
|
#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
|
|
|
|
#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
|
|
|
|
#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
|
|
|
|
#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
|
|
*/
|
|
|
|
#ifndef min
|
|
#define min(a,b) ((a)>(b)?(b):(a))
|
|
#endif
|
|
#ifndef max
|
|
#define max(a,b) ((b)>(a)?(b):(a))
|
|
#endif
|
|
|
|
#endif /* tcpdump_stdinc_h */
|