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allow to use interface name for multicast if with *BSD 

use SIOCGIFADDR to get interface IP

TODO : check how it works under Win32 ...
This commit is contained in:
Thomas Bernard 2016-01-17 18:49:41 +01:00
parent b8d1d79224
commit aaecdd4190
1 changed files with 21 additions and 3 deletions
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24
miniupnpc/minissdpc.c
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@ -1,5 +1,6 @@
/* $Id: minissdpc.c,v 1.28 2015/09/18 13:05:39 nanard Exp $ */
/* Project : miniupnp
/* vim: tabstop=4 shiftwidth=4 noexpandtab
* Project : miniupnp
* Web : http://miniupnp.free.fr/
* Author : Thomas BERNARD
* copyright (c) 2005-2015 Thomas Bernard
@ -67,6 +68,10 @@ struct sockaddr_un {
#define HAS_IP_MREQN
#endif
#if !defined(HAS_IP_MREQN)
#include <sys/ioctl.h>
#endif
#if defined(HAS_IP_MREQN) && defined(NEED_STRUCT_IP_MREQN)
/* Several versions of glibc don't define this structure,
* define it here and compile with CFLAGS NEED_STRUCT_IP_MREQN */
@ -648,9 +653,22 @@ ssdpDiscoverDevices(const char * const deviceTypes[],
PRINT_SOCKET_ERROR("setsockopt");
}
#else
#ifdef DEBUG
struct ifreq ifr;
int ifrlen = sizeof(ifr);
strncpy(ifr.ifr_name, multicastif, IFNAMSIZ);
ifr.ifr_name[IFNAMSIZ-1] = '\0';
if(ioctl(sudp, SIOCGIFADDR, &ifr, &ifrlen) < 0)
{
PRINT_SOCKET_ERROR("ioctl(...SIOCGIFADDR...)");
}
mc_if.s_addr = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
if(setsockopt(sudp, IPPROTO_IP, IP_MULTICAST_IF, (const char *)&mc_if, sizeof(mc_if)) < 0)
{
PRINT_SOCKET_ERROR("setsockopt");
}
/*#ifdef DEBUG
printf("Setting of multicast interface not supported with interface name.\n");
#endif
#endif*/
#endif
}
}