diff options
Diffstat (limited to 'freebsd/contrib/libpcap/pcap/export-defs.h')
| -rw-r--r-- | freebsd/contrib/libpcap/pcap/export-defs.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/freebsd/contrib/libpcap/pcap/export-defs.h b/freebsd/contrib/libpcap/pcap/export-defs.h new file mode 100644 index 00000000..a2350579 --- /dev/null +++ b/freebsd/contrib/libpcap/pcap/export-defs.h @@ -0,0 +1,108 @@ +/* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */ +/* + * Copyright (c) 1993, 1994, 1995, 1996, 1997 + * 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 lib_pcap_export_defs_h +#define lib_pcap_export_defs_h + +/* + * PCAP_API_DEF must be used when defining *data* exported from + * libpcap. It can be used when defining *functions* exported + * from libpcap, but it doesn't have to be used there. It + * should not be used in declarations in headers. + * + * PCAP_API must be used when *declaring* data or functions + * exported from libpcap; PCAP_API_DEF won't work on all platforms. + */ + +/* + * Check whether this is GCC major.minor or a later release, or some + * compiler that claims to be "just like GCC" of that version or a + * later release. + */ +#define IS_AT_LEAST_GNUC_VERSION(major, minor) \ + (defined(__GNUC__) && \ + (__GNUC__ > (major) || \ + (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))) + +#if defined(_WIN32) + #ifdef BUILDING_PCAP + /* + * We're compiling libpcap, so we should export functions in our + * API. + */ + #define PCAP_API_DEF __declspec(dllexport) + #else + #define PCAP_API_DEF __declspec(dllimport) + #endif +#elif defined(MSDOS) + /* XXX - does this need special treatment? */ + #define PCAP_API_DEF +#else /* UN*X */ + #ifdef BUILDING_PCAP + /* + * We're compiling libpcap, so we should export functions in our API. + * The compiler might be configured not to export functions from a + * shared library by default, so we might have to explicitly mark + * functions as exported. + */ + #if IS_AT_LEAST_GNUC_VERSION(3, 4) + /* + * GCC 3.4 or later, or some compiler asserting compatibility with + * GCC 3.4 or later, so we have __attribute__((visibility()). + */ + #define PCAP_API_DEF __attribute__((visibility("default"))) + #elif defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550) + /* + * Sun C 5.5 or later, so we have __global. + * (Sun C 5.9 and later also have __attribute__((visibility()), + * but there's no reason to prefer it with Sun C.) + */ + #define PCAP_API_DEF __global + #else + /* + * We don't have anything to say. + */ + #define PCAP_API_DEF + #endif + #else + /* + * We're not building libpcap. + */ + #define PCAP_API_DEF + #endif +#endif /* _WIN32/MSDOS/UN*X */ + +#define PCAP_API PCAP_API_DEF extern + +#endif /* lib_pcap_export_defs_h */ |