Drop msock.h and socket portability.

mcastseed/leech aren't really portable nor useful on M$ Windows™.

1 files changed, 0 insertions, 372 deletions

diff --git a/mcastseed/src/msock.c b/mcastseed/src/msock.c
deleted file mode 100644
index 191611d..0000000
--- a/mcastseed/src/msock.c
+++ /dev/null
@@ -1,372 +0,0 @@
-/*
-  msock.c - multicast socket creation routines
-
-  (C) 2016 Christian Beier <dontmind@sdf.org>
-
-*/
-
-#ifndef __MINGW32__
-#include <unistd.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-
-#include "msock.h"
-
-SOCKET mcast_send_socket(char* multicastIP, char* multicastPort,  int multicastTTL, struct addrinfo **multicastAddr) {
-
-    SOCKET sock;
-    struct addrinfo hints = { 0 };    /* Hints for name lookup */
-    int status;
-    
-    
-#ifdef WIN32
-    WSADATA trash;
-    if(WSAStartup(MAKEWORD(2,0),&trash)!=0)
-	DieWithError("Couldn't init Windows Sockets\n");
-#endif
-
-    
-    /*
-      Resolve destination address for multicast datagrams 
-    */
-    hints.ai_family   = PF_UNSPEC;
-    hints.ai_socktype = SOCK_DGRAM;
-    hints.ai_flags    = AI_NUMERICHOST;
-    if ((status = getaddrinfo(multicastIP, multicastPort, &hints, multicastAddr)) != 0 )
-	{
-	    fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
-	    return -1;
-	}
-
-   
-
-    /* 
-       Create socket for sending multicast datagrams 
-    */
-    if ( (sock = socket((*multicastAddr)->ai_family, (*multicastAddr)->ai_socktype, 0)) < 0 ) {
-	perror("socket() failed");
-	freeaddrinfo(*multicastAddr);
-	return -1;
-    }
-
-    /* 
-       Set TTL of multicast packet 
-    */
-    if ( setsockopt(sock,
-		    (*multicastAddr)->ai_family == PF_INET6 ? IPPROTO_IPV6        : IPPROTO_IP,
-		    (*multicastAddr)->ai_family == PF_INET6 ? IPV6_MULTICAST_HOPS : IP_MULTICAST_TTL,
-		    (char*) &multicastTTL, sizeof(multicastTTL)) != 0 ) {
-	perror("setsockopt() failed");
-	freeaddrinfo(*multicastAddr);
-	return -1;
-    }
-    
-    
-    /* 
-       set the sending interface 
-    */
-    if((*multicastAddr)->ai_family == PF_INET) {
-	in_addr_t iface = INADDR_ANY; /* well, yeah, any */
-	if(setsockopt (sock, 
-		       IPPROTO_IP,
-		       IP_MULTICAST_IF,
-		       (char*)&iface, sizeof(iface)) != 0) { 
-	    perror("interface setsockopt() sending interface");
-	    freeaddrinfo(*multicastAddr);
-	    return -1;
-	}
-
-    }
-    if((*multicastAddr)->ai_family == PF_INET6) {
-	unsigned int ifindex = 0; /* 0 means 'default interface'*/
-	if(setsockopt (sock, 
-		       IPPROTO_IPV6,
-		       IPV6_MULTICAST_IF,
-		       (char*)&ifindex, sizeof(ifindex)) != 0) { 
-	    perror("interface setsockopt() sending interface");
-	    freeaddrinfo(*multicastAddr);
-	    return -1;
-	}   
-	 
-    }
-
-     
-    return sock;
-
-}
-
-
-
-SOCKET mcast_recv_socket(char* multicastIP, char* multicastPort, int multicastRecvBufSize) {
-
-    SOCKET sock;
-    struct addrinfo   hints  = { 0 };    /* Hints for name lookup */
-    struct addrinfo*  localAddr = 0;         /* Local address to bind to */
-    struct addrinfo*  multicastAddr = 0;     /* Multicast Address */
-    int yes=1;
-    int status, optval;
-    socklen_t optval_len;
-    int dfltrcvbuf;
-  
-#ifdef WIN32
-    WSADATA trash;
-    if(WSAStartup(MAKEWORD(2,0),&trash)!=0)
-	DieWithError("Couldn't init Windows Sockets\n");
-#endif
-
-    
-    /* Resolve the multicast group address */
-    hints.ai_family = PF_UNSPEC;
-    hints.ai_flags  = AI_NUMERICHOST;
-    if ((status = getaddrinfo(multicastIP, NULL, &hints, &multicastAddr)) != 0) {
-	    fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
-	    goto error;
-    }
-    
-   
-    /* 
-       Get a local address with the same family (IPv4 or IPv6) as our multicast group
-       This is for receiving on a certain port.
-    */
-    hints.ai_family   = multicastAddr->ai_family;
-    hints.ai_socktype = SOCK_DGRAM;
-    hints.ai_flags    = AI_PASSIVE; /* Return an address we can bind to */
-    if ( getaddrinfo(NULL, multicastPort, &hints, &localAddr) != 0 ) {
-	fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
-	goto error;
-    }
-  
-
-    /* Create socket for receiving datagrams */
-    if ( (sock = socket(localAddr->ai_family, localAddr->ai_socktype, 0)) < 0 ) {
-	perror("socket() failed");
-	goto error;
-    }
-    
-    
-   
-    /*
-     * Enable SO_REUSEADDR to allow multiple instances of this
-     * application to receive copies of the multicast datagrams.
-     */
-    if (setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(char*)&yes,sizeof(int)) == -1) {
-	perror("setsockopt");
-	goto error;
-    }
-  
-    /* Bind the local address to the multicast port */
-    if ( bind(sock, localAddr->ai_addr, localAddr->ai_addrlen) != 0 ) {
-	perror("bind() failed");
-	goto error;
-    }
-
-    /* get/set socket receive buffer */
-    optval=0;
-    optval_len = sizeof(optval);
-    if(getsockopt(sock, SOL_SOCKET, SO_RCVBUF,(char*)&optval, &optval_len) !=0) {
-	perror("getsockopt");
-	goto error;
-    }
-    dfltrcvbuf = optval;
-    optval = multicastRecvBufSize;
-    if(setsockopt(sock,SOL_SOCKET,SO_RCVBUF,(char*)&optval,sizeof(optval)) != 0) {
-	perror("setsockopt");
-	goto error;
-    }
-    if(getsockopt(sock, SOL_SOCKET, SO_RCVBUF,(char*)&optval, &optval_len) != 0) {
-	perror("getsockopt");
-	goto error;
-    }
-    fprintf(stderr, "tried to set socket receive buffer from %d to %d, got %d\n",
-	   dfltrcvbuf, multicastRecvBufSize, optval);
-
-  
-    
-    
-    /* Join the multicast group. We do this seperately depending on whether we
-     * are using IPv4 or IPv6. 
-     */
-    if ( multicastAddr->ai_family  == PF_INET &&  
-	 multicastAddr->ai_addrlen == sizeof(struct sockaddr_in) ) /* IPv4 */
-	{
-	    struct ip_mreq multicastRequest;  /* Multicast address join structure */
-
-	    /* Specify the multicast group */
-	    memcpy(&multicastRequest.imr_multiaddr,
-		   &((struct sockaddr_in*)(multicastAddr->ai_addr))->sin_addr,
-		   sizeof(multicastRequest.imr_multiaddr));
-
-	    /* Accept multicast from any interface */
-	    multicastRequest.imr_interface.s_addr = htonl(INADDR_ANY);
-
-	    /* Join the multicast address */
-	    if ( setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*) &multicastRequest, sizeof(multicastRequest)) != 0 ) {
-		perror("setsockopt() failed");
-		goto error;
-	    }
-	}
-    else if ( multicastAddr->ai_family  == PF_INET6 &&
-	      multicastAddr->ai_addrlen == sizeof(struct sockaddr_in6) ) /* IPv6 */
-	{
-	    struct ipv6_mreq multicastRequest;  /* Multicast address join structure */
-
-	    /* Specify the multicast group */
-	    memcpy(&multicastRequest.ipv6mr_multiaddr,
-		   &((struct sockaddr_in6*)(multicastAddr->ai_addr))->sin6_addr,
-		   sizeof(multicastRequest.ipv6mr_multiaddr));
-
-	    /* Accept multicast from any interface */
-	    multicastRequest.ipv6mr_interface = 0;
-
-	    /* Join the multicast address */
-	    if ( setsockopt(sock, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, (char*) &multicastRequest, sizeof(multicastRequest)) != 0 ) {
-		perror("setsockopt() failed");
-		goto error;
-	    }
-	}
-    else {
-	perror("Neither IPv4 or IPv6"); 
-  	goto error;
-    }
-
-
-    
-    if(localAddr)
-	freeaddrinfo(localAddr);
-    if(multicastAddr)
-	freeaddrinfo(multicastAddr);
-    
-    return sock;
-
- error:
-    if(localAddr)
-	freeaddrinfo(localAddr);
-    if(multicastAddr)
-	freeaddrinfo(multicastAddr);
-
-    return -1;
-}
-
-SOCKET ucast_client_socket(char* serverIP, char* serverPort) {
-
-	SOCKET sock;
-	struct addrinfo *serverAddr;
-	struct addrinfo hints = { 0 };    /* Hints for name lookup */
-	int status;
-
-
-#ifdef WIN32
-	WSADATA trash;
-	if(WSAStartup(MAKEWORD(2,0),&trash)!=0)
-		DieWithError("Couldn't init Windows Sockets\n");
-#endif
-
-
-	/*
-		 Resolve destination address
-	 */
-	hints.ai_family   = PF_UNSPEC;
-	hints.ai_socktype = SOCK_STREAM;
-	hints.ai_flags    = AI_NUMERICHOST;
-	if ((status = getaddrinfo(serverIP, serverPort, &hints, &serverAddr)) != 0 )
-	{
-		fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
-		return -1;
-	}
-
-	/* 
-		 Create socket
-	 */
-	if ( (sock = socket(serverAddr->ai_family, serverAddr->ai_socktype, 0)) < 0 ) {
-		perror("socket() failed");
-		freeaddrinfo(serverAddr);
-		return -1;
-	}
-
-	/* 
-		 Connect it to the remote server
-	 */
-	if ( connect(sock, serverAddr->ai_addr, serverAddr->ai_addrlen) < 0 ) {
-		perror("connect() failed");
-		close(sock);
-		freeaddrinfo(serverAddr);
-		return -1;
-	}
-
-	freeaddrinfo(serverAddr);
-	return sock;
-}
-
-SOCKET ucast_server_socket(char* serverPort, int maxPendingConnections) {
-
-	SOCKET sock;
-	struct addrinfo *serverAddr;
-	struct addrinfo hints = { 0 };    /* Hints for name lookup */
-	int status;
-
-
-#ifdef WIN32
-	WSADATA trash;
-	if(WSAStartup(MAKEWORD(2,0),&trash)!=0)
-		DieWithError("Couldn't init Windows Sockets\n");
-#endif
-
-
-	/*
-		 Prepare an addrinfo struct for a local socket
-	 */
-	hints.ai_family   = PF_INET6;
-	hints.ai_socktype = SOCK_STREAM;
-	hints.ai_flags    = AI_PASSIVE;
-	if ((status = getaddrinfo(NULL, serverPort, &hints, &serverAddr)) != 0 )
-	{
-		fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(status));
-		return -1;
-	}
-	/* 
-		 Create socket
-	 */
-	if ( (sock = socket(serverAddr->ai_family, serverAddr->ai_socktype, serverAddr->ai_protocol)) < 0 ) {
-		perror("socket() failed");
-		freeaddrinfo(serverAddr);
-		return -1;
-	}
-
-	/*
-	   Accepts also IPv4 traffic if the socket is INET6
-	 */
-	if(serverAddr->ai_family == PF_INET6) {
-		unsigned int no = 0;
-		if(setsockopt (sock, 
-					IPPROTO_IPV6,
-					IPV6_V6ONLY,
-					(char*)&no, sizeof(no)) != 0) { 
-			perror("setsockopt() !IPV6_V6ONLY failed");
-			freeaddrinfo(serverAddr);
-			return -1;
-		}   
-	}
-	
-	/* 
-		 Bind socket to local address/port
-	 */
-	if ( bind(sock, serverAddr->ai_addr, serverAddr->ai_addrlen) < 0 ) {
-		perror("bind() failed");
-		close(sock);
-		freeaddrinfo(serverAddr);
-		return -1;
-	}
-
-	freeaddrinfo(serverAddr);
-	/*
-	   Start listening incoming connections
-	 */
-	if ( listen(sock, maxPendingConnections) < 0 ) {
-		perror("listen() failed");
-		close(sock);
-	}
-
-	return sock;
-}