128 lines
4.8 KiB
C
128 lines
4.8 KiB
C
/*
|
|
* Copyright (c) 1994, 1995, 1996
|
|
* The Regents of the University of California. 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the Computer Systems
|
|
* Engineering Group at Lawrence Berkeley Laboratory.
|
|
* 4. Neither the name of the University nor of the Laboratory may be used
|
|
* to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*/
|
|
|
|
#ifndef ftmacros_h
|
|
#define ftmacros_h
|
|
|
|
/*
|
|
* Define some feature test macros to make sure that everything we want
|
|
* to be declared gets declared.
|
|
*
|
|
* On some UN*Xes we need to force strtok_r() to be declared.
|
|
* We do *NOT* want to define _POSIX_C_SOURCE, as that tends
|
|
* to make non-POSIX APIs that we use unavailable.
|
|
* XXX - is there no portable way to say "please pollute the
|
|
* namespace to the maximum extent possible"?
|
|
*/
|
|
#if defined(sun) || defined(__sun)
|
|
/*
|
|
* On Solaris Clang defines __EXTENSIONS__ automatically.
|
|
*/
|
|
#ifndef __EXTENSIONS__
|
|
#define __EXTENSIONS__
|
|
#endif
|
|
|
|
/*
|
|
* We also need to define _XPG4_2 in order to get
|
|
* the Single UNIX Specification version of
|
|
* recvmsg().
|
|
*/
|
|
#define _XPG4_2
|
|
#elif defined(_hpux) || defined(hpux) || defined(__hpux)
|
|
#define _REENTRANT
|
|
|
|
/*
|
|
* We need this to get the versions of socket functions that
|
|
* use socklen_t. Define it only if it's not already defined,
|
|
* so we don't get redefiniton warnings.
|
|
*/
|
|
#ifndef _XOPEN_SOURCE_EXTENDED
|
|
#define _XOPEN_SOURCE_EXTENDED
|
|
#endif
|
|
|
|
/*
|
|
* XXX - the list of PA-RISC options for GCC makes it sound as if
|
|
* building code that uses a particular vintage of UNIX API/ABI
|
|
* is complicated:
|
|
*
|
|
* https://gcc.gnu.org/onlinedocs/gcc/HPPA-Options.html
|
|
*
|
|
* See the description of the -munix flag.
|
|
*
|
|
* We probably want libpcap to work with programs built for any
|
|
* UN*X standard. I'm not sure whether that's possible and, if
|
|
* it is, what sort of stuff it'd have to do.
|
|
*
|
|
* It might also be a requirement that we build with a special
|
|
* flag to allow the library to be used with threaded code, at
|
|
* least with HP's C compiler; hopefully doing so won't make it
|
|
* *not* work with *un*-threaded code.
|
|
*/
|
|
#else
|
|
/*
|
|
* Turn on _GNU_SOURCE to get everything GNU libc has to offer,
|
|
* including asprintf(), if we're using GNU libc.
|
|
*
|
|
* Unfortunately, one thing it has to offer is a strerror_r()
|
|
* that's not POSIX-compliant, but we deal with that in
|
|
* pcap_fmt_errmsg_for_errno().
|
|
*
|
|
* We don't limit this to, for example, Linux and Cygwin, because
|
|
* this might, for example, be GNU/HURD or one of Debian's kFreeBSD
|
|
* OSes ("GNU/FreeBSD").
|
|
*/
|
|
#define _GNU_SOURCE
|
|
|
|
/*
|
|
* We turn on both _DEFAULT_SOURCE and _BSD_SOURCE to try to get
|
|
* the BSD u_XXX types, such as u_int and u_short, defined. We
|
|
* define _DEFAULT_SOURCE first, so that newer versions of GNU libc
|
|
* don't whine about _BSD_SOURCE being deprecated; we still have
|
|
* to define _BSD_SOURCE to handle older versions of GNU libc that
|
|
* don't support _DEFAULT_SOURCE.
|
|
*
|
|
* But, if it's already defined, don't define it, so that we don't
|
|
* get a warning of it being redefined if it's defined as, for
|
|
* example, 1.
|
|
*/
|
|
#ifndef _DEFAULT_SOURCE
|
|
#define _DEFAULT_SOURCE
|
|
#endif
|
|
/* Avoid redefining _BSD_SOURCE if it's already defined as for ex. 1 */
|
|
#ifndef _BSD_SOURCE
|
|
#define _BSD_SOURCE
|
|
#endif
|
|
#endif
|
|
|
|
#endif
|