109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
/*
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* Copyright (c) 2011, Anthony Minessale II
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the original author; nor the names of any contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MCAST_H
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#define __MCAST_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* defined(__cplusplus) */
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#if EMACS_WORKS
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}
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#endif
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#include <sys/types.h>
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#ifdef WIN32
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#include <ws2tcpip.h> // struct 'sockaddr_in6'
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#include <WinSock2.h>
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#else
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#endif
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#ifdef _MSC_VER
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#include <stdint.h>
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#ifndef strncasecmp
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#define strncasecmp _strnicmp
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#endif
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#ifdef _WIN64
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#define WS_SSIZE_T __int64
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#elif _MSC_VER >= 1400
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#define WS_SSIZE_T __int32 __w64
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#else
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#define WS_SSIZE_T __int32
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#endif
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typedef WS_SSIZE_T ssize_t;
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#endif
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#ifndef WIN32
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typedef int mcast_socket_t;
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#else
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typedef SOCKET mcast_socket_t;
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#endif
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#define mcast_sock_invalid (mcast_socket_t)-1
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typedef struct {
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mcast_socket_t sock;
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unsigned char ttl;
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struct sockaddr_in send_addr;
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struct sockaddr_in recv_addr;
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struct sockaddr_in6 send_addr6;
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struct sockaddr_in6 recv_addr6;
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int family;
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unsigned char buffer[65536];
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int ready;
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} mcast_handle_t;
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typedef enum {
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MCAST_SEND = (1 << 0),
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MCAST_RECV = (1 << 1),
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MCAST_TTL_HOST = (1 << 2),
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MCAST_TTL_SUBNET = (1 << 3),
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MCAST_TTL_SITE = (1 << 4),
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MCAST_TTL_REGION = (1 << 5),
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MCAST_TTL_CONTINENT = (1 << 6),
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MCAST_TTL_UNIVERSE = (1 << 7)
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} mcast_flag_t;
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int mcast_socket_create(const char *host, int16_t port, mcast_handle_t *handle, mcast_flag_t flags);
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void mcast_socket_close(mcast_handle_t *handle);
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ssize_t mcast_socket_send(mcast_handle_t *handle, void *data, size_t datalen);
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ssize_t mcast_socket_recv(mcast_handle_t *handle, void *data, size_t datalen, int ms);
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#ifdef __cplusplus
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}
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#endif /* defined(__cplusplus) */
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#endif
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