-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi,
I try to bind a socket to a multicast address (239.192.202.5). But it fails with an error: "Cannot assign requested address" Is this not supported using Cygwin? I've added a simple test program in case someone wants to verify. Thanks, mwarning -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iQEcBAEBCAAGBQJTcioBAAoJECHrh56PP4wpXmYH/AyT0e32GL2GxSr5DZexNEkA lGY3wYUlNkEjkzrFxTNOoTvDTg0nvDD5q9jMH1WoKObbwbhvG27qn3m/iZL4g/HD DPW935mCEpSp5ryKGUyHBuS28IkLWYhgFZyUF7Uz0zG3VWcdKPo4G/O+/imT7Un4 +2gPJl7wwVsEtmBnxso3EixBBroLIO/w0gd/4b7XEfsInWhe1/GSTdjROTqUh5bY gmMJIu3kiShGlYdq0c4BcnPgTcJewfunVMLLyl3zoq2KnHof1BqKGP8k6cibuCRo SRs0meCQX19azuivoX01synqfddB9x/XHbtoiUe3Mxnq/KhUogh5bI5QJgNyGqI= =HUpc -----END PGP SIGNATURE-----
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <arpa/inet.h>
#include <sys/socket.h>
int main( int argc, char **argv ) {
struct sockaddr_in sockaddr;
if( inet_pton(AF_INET, "239.192.202.5", &sockaddr.sin_addr) != 1 ) {
printf("parse errorr\n");
return 1;
}
sockaddr.sin_family = AF_INET;
sockaddr.sin_port = htons(6771);
int sock = socket( AF_INET, SOCK_DGRAM, IPPROTO_UDP );
socklen_t addrlen= sizeof(struct sockaddr_in);
if( bind( sock, (struct sockaddr*) &sockaddr, addrlen ) < 0 ) {
//close( sock );
printf( "Failed to bind socket to address: %s\n", strerror( errno ) );
return 1;
}
printf("It works.\n");
//close( sock );
return 0;
}
main.c.sig
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