--- a
+++ b/libupnpp/getsyshwaddr.c
@@ -0,0 +1,152 @@
+/* MiniUPnP project
+ * http://miniupnp.free.fr/ or http://miniupnp.tuxfamily.org/
+ *
+ * Copyright (c) 2006, Thomas Bernard
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <errno.h>
+#if defined(sun)
+#include <sys/sockio.h>
+#endif
+
+#include "config.h"
+#if HAVE_GETIFADDRS
+#include <ifaddrs.h>
+#ifdef __linux__
+#ifndef AF_LINK
+#define AF_LINK AF_INET
+#endif
+#else
+#include <net/if_dl.h>
+#endif
+#endif
+
+#include "getsyshwaddr.h"
+
+#define DPRINTF(A,B,C,D)
+
+int
+getsyshwaddr(char *buf, int len)
+{
+ unsigned char mac[6];
+ int ret = -1;
+#if HAVE_GETIFADDRS
+ struct ifaddrs *ifap, *p;
+ struct sockaddr_in *addr_in;
+ uint8_t a;
+
+ if (getifaddrs(&ifap) != 0)
+ {
+ DPRINTF(E_ERROR, L_GENERAL, "getifaddrs(): %s\n", strerror(errno));
+ return -1;
+ }
+ for (p = ifap; p != NULL; p = p->ifa_next)
+ {
+ if (p->ifa_addr && p->ifa_addr->sa_family == AF_LINK)
+ {
+ addr_in = (struct sockaddr_in *)p->ifa_addr;
+ a = (htonl(addr_in->sin_addr.s_addr) >> 0x18) & 0xFF;
+ if (a == 127)
+ continue;
+#ifdef __linux__
+ struct ifreq ifr;
+ int fd;
+ fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd < 0)
+ continue;
+ strncpy(ifr.ifr_name, p->ifa_name, IFNAMSIZ);
+ if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0)
+ {
+ close(fd);
+ continue;
+ }
+ memcpy(mac, ifr.ifr_hwaddr.sa_data, 6);
+#else
+ struct sockaddr_dl *sdl;
+ sdl = (struct sockaddr_dl*)p->ifa_addr;
+ memcpy(mac, LLADDR(sdl), sdl->sdl_alen);
+#endif
+ if (MACADDR_IS_ZERO(mac))
+ continue;
+ ret = 0;
+ break;
+ }
+ }
+ freeifaddrs(ifap);
+#else
+ struct if_nameindex *ifaces, *if_idx;
+ struct ifreq ifr;
+ int fd;
+
+ memset(&mac, '\0', sizeof(mac));
+ /* Get the spatially unique node identifier */
+ fd = socket(AF_INET, SOCK_DGRAM, 0);
+ if (fd < 0)
+ return ret;
+
+ ifaces = if_nameindex();
+ if (!ifaces)
+ return ret;
+
+ for (if_idx = ifaces; if_idx->if_index; if_idx++)
+ {
+ strncpy(ifr.ifr_name, if_idx->if_name, IFNAMSIZ);
+ if (ioctl(fd, SIOCGIFFLAGS, &ifr) < 0)
+ continue;
+ if (ifr.ifr_ifru.ifru_flags & IFF_LOOPBACK)
+ continue;
+ if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0)
+ continue;
+ if (MACADDR_IS_ZERO(ifr.ifr_hwaddr.sa_data))
+ continue;
+ memcpy(mac, ifr.ifr_hwaddr.sa_data, 6);
+ ret = 0;
+ break;
+ }
+ if_freenameindex(ifaces);
+ close(fd);
+#endif
+ if (ret == 0)
+ {
+ if (len > 12)
+ sprintf(buf, "%02x%02x%02x%02x%02x%02x",
+ mac[0]&0xFF, mac[1]&0xFF, mac[2]&0xFF,
+ mac[3]&0xFF, mac[4]&0xFF, mac[5]&0xFF);
+ else if (len == 6)
+ memmove(buf, mac, 6);
+ }
+ return ret;
+}