| /* -*- 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 */ |