From: Moritz Warning <moritzwarning@web.de>
To: cygwin@cygwin.com
Subject: bind to multicast address fails
Date: Tue, 13 May 2014 14:36:00 -0000 [thread overview]
Message-ID: <53722A02.5070201@web.de> (raw)
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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
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#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;
}
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next reply other threads:[~2014-05-13 14:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-13 14:36 Moritz Warning [this message]
2014-05-13 14:59 ` Corinna Vinschen
2014-05-13 15:23 ` Moritz Warning
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