#include <sys/socket.h>
#include <sys/uio.h>
#include <assert.h>
-#include <sys/ioctl.h>
#include <net/if.h>
+#include <ifaddrs.h>
#include "configuration.h"
#include "syscalls.h"
0
};
static const int one = 1;
- int sndbuf, target_sndbuf = 131072, n;
+ int sndbuf, target_sndbuf = 131072;
socklen_t len;
char *sockname, *ssockname;
}
info("multicasting on %s", sockname);
} else {
- struct ifreq *ifs;
- int nifs;
+ struct ifaddrs *ifs;
- /* See if the address matches the broadcast address of some interface */
- ifreq_list(bfd, &ifs, &nifs);
- for(n = 0; n < nifs; ++n) {
- if(ioctl(bfd, SIOCGIFBRDADDR, &ifs[n]) < 0)
- fatal(errno, "error calling ioctl SIOCGIFBRDADDR");
- if(sockaddr_equal(&ifs[n].ifr_broadaddr, res->ai_addr))
+ if(getifaddrs(&ifs) < 0)
+ fatal(errno, "error calling getifaddrs");
+ while(ifs) {
+ if((ifs->ifa_flags & IFF_BROADCAST)
+ && sockaddr_equal(ifs->ifa_broadaddr, res->ai_addr))
break;
+ ifs = ifs->ifa_next;
}
- if(n < nifs) {
+ if(ifs) {
if(setsockopt(bfd, SOL_SOCKET, SO_BROADCAST, &one, sizeof one) < 0)
fatal(errno, "error setting SO_BROADCAST on broadcast socket");
- info("broadcasting on %s (%s)", sockname, ifs[n].ifr_name);
+ info("broadcasting on %s (%s)", sockname, ifs->ifa_name);
} else
info("unicasting on %s", sockname);
}