diff --git a/netdissect-stdinc.h b/netdissect-stdinc.h
new file mode 100644
index 0000000..c7070f0
--- /dev/null
+++ b/netdissect-stdinc.h
@@ -0,0 +1,404 @@
+/*
+ * 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
+ */
+
+#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 */