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| -rw-r--r-- | ftmacros.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/ftmacros.h b/ftmacros.h new file mode 100644 index 0000000..7975463 --- /dev/null +++ b/ftmacros.h @@ -0,0 +1,127 @@ +/* + * 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 |