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/*
* 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
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