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38cebc73a3
POSIX does not require getprotobyname() to be thread safe and some implementations use static memory which causes issues when multiple threads are used. Further, our usage of it today is just to ultimately get IPPROTO_TCP for calls to setsockopt(). So instead we just use IPPROTO_TCP directly. Change-Id: I2e14e58674808f7ce99b2f5e900d0f90d0d8da48
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2007, Digium, Inc.
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*
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* Luigi Rizzo
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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* \brief Wrapper for network related headers,
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* masking differences between various operating systems.
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* On passing, we also provide here trivial functions or
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* other simple wrappers to network-related functions.
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*/
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#ifndef _ASTERISK_NETWORK_H
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#define _ASTERISK_NETWORK_H
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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#endif
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/*
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* Include relevant network headers.
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* Our preferred choice are the standard BSD/linux/unix headers.
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* Missing them (e.g. for solaris or various windows environments),
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* we resort to whatever we find around, and provide local definitions
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* for the missing bits.
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*/
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#ifdef HAVE_ARPA_INET_H
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#include <netinet/in.h>
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#include <arpa/inet.h> /* include early to override inet_ntoa */
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/tcp.h>
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#include <netdb.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <sys/ioctl.h>
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#elif defined(HAVE_WINSOCK_H)
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#include <winsock.h>
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typedef int socklen_t;
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#elif defined(HAVE_WINSOCK2_H)
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#else
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#error "don't know how to handle network functions here."
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#endif
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#ifndef HAVE_INET_ATON
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int inet_aton(const char *cp, struct in_addr *pin);
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#endif
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#ifndef IFNAMSIZ
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#define IFNAMSIZ 16
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#endif
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#ifndef MAXHOSTNAMELEN
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#define MAXHOSTNAMELEN 256
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#endif
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/*!
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* \brief thread-safe replacement for inet_ntoa().
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*
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* \note It is very important to note that even though this is a thread-safe
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* replacement for inet_ntoa(), it is *not* reentrant. In a single
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* thread, the result from a previous call to this function is no longer
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* valid once it is called again. If the result from multiple calls to
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* this function need to be kept or used at once, then the result must be
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* copied to a local buffer before calling this function again.
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*/
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const char *ast_inet_ntoa(struct in_addr ia);
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#ifdef inet_ntoa
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#undef inet_ntoa
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#endif
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#define inet_ntoa __dont__use__inet_ntoa__use__ast_inet_ntoa__instead__
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#ifdef getprotobyname
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#undef getprotobyname
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#endif
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#define getprotobyname __getprotobyname_is_not_threadsafe__do_not_use__
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/*! \brief Compares the source address and port of two sockaddr_in */
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static force_inline int inaddrcmp(const struct sockaddr_in *sin1, const struct sockaddr_in *sin2)
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{
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return ((sin1->sin_addr.s_addr != sin2->sin_addr.s_addr)
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|| (sin1->sin_port != sin2->sin_port));
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}
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#if defined(__cplusplus) || defined(c_plusplus)
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}
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#endif
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#endif /* _ASTERISK_NETWORK_H */
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