mirror of
https://github.com/the-tcpdump-group/tcpdump.git
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f79d3e15d1
It's _WIN32, with a leading underscore, not WIN32. See, for example: https://sourceforge.net/p/predef/wiki/OperatingSystems/ and https://msdn.microsoft.com/en-us/library/b0084kay.aspx *Some* environments may also define WIN32, but we shouldn't depend on that.
353 lines
8.8 KiB
C
353 lines
8.8 KiB
C
/*
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* Copyright (c) 2002 - 2003
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* NetGroup, Politecnico di Torino (Italy)
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Politecnico di Torino nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Include the appropriate OS header files on Windows and various flavors
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* of UNIX, include various non-OS header files on Windows, and define
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* various items as needed, to isolate most of tcpdump's platform
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* differences to this one file.
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*/
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#ifndef tcpdump_stdinc_h
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#define tcpdump_stdinc_h
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#include <errno.h>
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#ifdef _WIN32
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#include <stdint.h>
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#include <stdio.h>
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#include "bittypes.h" /* in wpcap's Win32/include */
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#include <ctype.h>
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#include <time.h>
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#include <io.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <net/netdb.h> /* in wpcap's Win32/include */
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#ifndef uint8_t
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#define uint8_t unsigned char
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#endif
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#ifndef int8_t
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#define int8_t signed char
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#endif
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#ifndef uint16_t
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#define uint16_t unsigned short
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#endif
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#ifndef int16_t
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#define int16_t signed short
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#endif
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#ifndef uint32_t
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#define uint32_t unsigned int
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#endif
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#ifndef int32_t
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#define int32_t signed int
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#endif
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#ifdef _MSC_EXTENSIONS
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#ifndef uint64_t
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#define uint64_t unsigned _int64
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#endif
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#ifndef int64_t
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#define int64_t _int64
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#endif
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#ifndef PRId64
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#define PRId64 "I64d"
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#endif
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#ifndef PRIo64
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#define PRIo64 "I64o"
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#endif
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#ifndef PRIu64
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#define PRIu64 "I64u"
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#endif
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#ifndef PRIx64
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#define PRIx64 "I64x"
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#endif
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#else /* _MSC_EXTENSIONS */
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#ifndef uint64_t
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#define uint64_t unsigned long long
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#endif
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#ifndef int64_t
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#define int64_t long long
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#endif
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#ifndef PRId64
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#define PRId64 "lld"
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#endif
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#ifndef PRIo64
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#define PRIo64 "llo"
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#endif
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#ifndef PRIu64
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#define PRIu64 "llu"
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#endif
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#ifndef PRIx64
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#define PRIx64 "llx"
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#endif
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#endif /* _MSC_EXTENSIONS */
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#ifdef _MSC_VER
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#define stat _stat
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#define open _open
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#define fstat _fstat
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#define read _read
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#define close _close
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#define O_RDONLY _O_RDONLY
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#endif /* _MSC_VER */
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/* Protos for missing/x.c functions (ideally <missing/addrinfo.h>
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* should be used, but it clashes with <ws2tcpip.h>).
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*/
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extern const char *inet_ntop (int, const void *, char *, size_t);
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extern int inet_pton (int, const char *, void *);
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extern int inet_aton (const char *cp, struct in_addr *addr);
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/*
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* With MSVC, for C, __inline is used to make a function an inline.
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*/
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#ifdef _MSC_VER
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#define inline __inline
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#endif
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#ifndef INET6_ADDRSTRLEN
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#define INET6_ADDRSTRLEN 46
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#endif
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/* It is in MSVC's <errno.h>, but not defined in MingW+Watcom.
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*/
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#ifndef EAFNOSUPPORT
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#define EAFNOSUPPORT WSAEAFNOSUPPORT
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#endif
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#ifndef caddr_t
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typedef char* caddr_t;
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#endif /* caddr_t */
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#define MAXHOSTNAMELEN 64
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#define NI_MAXHOST 1025
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#define snprintf _snprintf
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#define vsnprintf _vsnprintf
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#define RETSIGTYPE void
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#else /* _WIN32 */
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#include <ctype.h>
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#include <unistd.h>
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#include <netdb.h>
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#if HAVE_INTTYPES_H
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#include <inttypes.h>
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#elif HAVE_STDINT_H
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#include <stdint.h>
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#endif
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#include <sys/param.h>
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#include <sys/types.h> /* concession to AIX */
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#ifdef TIME_WITH_SYS_TIME
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#include <time.h>
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#endif
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#include <arpa/inet.h>
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#endif /* _WIN32 */
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#ifndef HAVE___ATTRIBUTE__
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#define __attribute__(x)
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#endif
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/*
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* Used to declare a structure unaligned, so that the C compiler,
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* if necessary, generates code that doesn't assume alignment.
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* This is required because there is no guarantee that the packet
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* data we get from libpcap/WinPcap is properly aligned.
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*
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* This assumes that, for all compilers that support __attribute__:
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*
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* 1) they support __attribute__((packed));
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*
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* 2) for all instruction set architectures requiring strict
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* alignment, declaring a structure with that attribute
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* causes the compiler to generate code that handles
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* misaligned 2-byte, 4-byte, and 8-byte integral
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* quantities.
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*
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* It does not (yet) handle compilers where you can get the compiler
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* to generate code of that sort by some other means.
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*
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* This is required in order to, for example, keep the compiler from
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* generating, for
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*
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* if (bp->bp_htype == 1 && bp->bp_hlen == 6 && bp->bp_op == BOOTPREQUEST) {
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*
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* in print-bootp.c, code that loads the first 4-byte word of a
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* "struct bootp", masking out the bp_hops field, and comparing the result
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* against 0x01010600.
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*
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* Note: this also requires that padding be put into the structure,
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* at least for compilers where it's implemented as __attribute__((packed)).
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*/
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#if !(defined(_MSC_VER) && defined(UNALIGNED))
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/* MSVC may have its own macro defined with the same name and purpose. */
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#undef UNALIGNED
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#define UNALIGNED __attribute__((packed))
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#endif
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#if defined(_WIN32) || defined(MSDOS)
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#define FOPEN_READ_TXT "rt"
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#define FOPEN_READ_BIN "rb"
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#define FOPEN_WRITE_TXT "wt"
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#define FOPEN_WRITE_BIN "wb"
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#else
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#define FOPEN_READ_TXT "r"
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#define FOPEN_READ_BIN FOPEN_READ_TXT
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#define FOPEN_WRITE_TXT "w"
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#define FOPEN_WRITE_BIN FOPEN_WRITE_TXT
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#endif
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#if defined(__GNUC__) && defined(__i386__) && !defined(__APPLE__) && !defined(__ntohl)
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#undef ntohl
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#undef ntohs
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#undef htonl
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#undef htons
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static __inline__ unsigned long __ntohl (unsigned long x);
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static __inline__ unsigned short __ntohs (unsigned short x);
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#define ntohl(x) __ntohl(x)
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#define ntohs(x) __ntohs(x)
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#define htonl(x) __ntohl(x)
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#define htons(x) __ntohs(x)
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static __inline__ unsigned long __ntohl (unsigned long x)
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{
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__asm__ ("xchgb %b0, %h0\n\t" /* swap lower bytes */
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"rorl $16, %0\n\t" /* swap words */
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"xchgb %b0, %h0" /* swap higher bytes */
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: "=q" (x) : "0" (x));
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return (x);
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}
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static __inline__ unsigned short __ntohs (unsigned short x)
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{
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__asm__ ("xchgb %b0, %h0" /* swap bytes */
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: "=q" (x) : "0" (x));
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return (x);
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}
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#endif
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#ifndef INET_ADDRSTRLEN
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#define INET_ADDRSTRLEN 16
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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/*
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* The Apple deprecation workaround macros below were adopted from the
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* FreeRADIUS server code under permission of Alan DeKok and Arran Cudbard-Bell.
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*/
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#define XSTRINGIFY(x) #x
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/*
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* Macros for controlling warnings in GCC >= 4.2 and clang >= 2.8
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*/
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#define DIAG_JOINSTR(x,y) XSTRINGIFY(x ## y)
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#define DIAG_DO_PRAGMA(x) _Pragma (#x)
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#if defined(__GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
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# define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(GCC diagnostic x)
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# if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406
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# define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x))
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# define DIAG_ON(x) DIAG_PRAGMA(pop)
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# else
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# define DIAG_OFF(x) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x))
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# define DIAG_ON(x) DIAG_PRAGMA(warning DIAG_JOINSTR(-W,x))
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# endif
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#elif defined(__clang__) && ((__clang_major__ * 100) + __clang_minor__ >= 208)
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# define DIAG_PRAGMA(x) DIAG_DO_PRAGMA(clang diagnostic x)
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# define DIAG_OFF(x) DIAG_PRAGMA(push) DIAG_PRAGMA(ignored DIAG_JOINSTR(-W,x))
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# define DIAG_ON(x) DIAG_PRAGMA(pop)
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#else
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# define DIAG_OFF(x)
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# define DIAG_ON(x)
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#endif
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/*
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* For dealing with APIs which are only deprecated in OSX (like the OpenSSL API)
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*/
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#ifdef __APPLE__
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# define USES_APPLE_DEPRECATED_API DIAG_OFF(deprecated-declarations)
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# define USES_APPLE_RST DIAG_ON(deprecated-declarations)
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#else
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# define USES_APPLE_DEPRECATED_API
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# define USES_APPLE_RST
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#endif
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/*
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* end of Apple deprecation workaround macros
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*/
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#ifndef min
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#define min(a,b) ((a)>(b)?(b):(a))
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#endif
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#ifndef max
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#define max(a,b) ((b)>(a)?(b):(a))
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#endif
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#endif /* tcpdump_stdinc_h */
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