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+ /*
+ ** OSSP uuid - Universally Unique Identifier
+ ** Copyright (c) 2004 Ralf S. Engelschall <rse@engelschall.com>
+ ** Copyright (c) 2004 The OSSP Project <http://www.ossp.org/>
+ **
+ ** This file is part of OSSP uuid, a library for the generation
+ ** of UUIDs which can found at http://www.ossp.org/pkg/lib/uuid/
+ **
+ ** Permission to use, copy, modify, and distribute this software for
+ ** any purpose with or without fee is hereby granted, provided that
+ ** the above copyright notice and this permission notice appear in all
+ ** copies.
+ **
+ ** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
+ ** 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.
+ **
+ ** uuid_mac.c: Media Access Control (MAC) resolver implementation
+ */
+
+ #include "config.h"
+ #include "uuid_mac.h"
+
+ #include <stdlib.h>
+ #include <string.h>
+ #include <unistd.h>
+ #include <time.h>
+ #include <sys/time.h>
+ #include <fcntl.h>
+ #include <time.h>
+ #include <sys/time.h>
+ #include <sys/types.h>
+
+ #ifdef HAVE_IFADDRS_H
+ #include <ifaddrs.h>
+ #endif
+ #ifdef HAVE_NET_IF_DL_H
+ #include <net/if_dl.h>
+ #endif
+
+ #ifdef HAVE_SYS_IOCTL_H
+ #include <sys/ioctl.h>
+ #endif
+ #ifdef HAVE_SYS_SOCKET_H
+ #include <sys/socket.h>
+ #endif
+ #ifdef HAVE_SYS_SOCKIO_H
+ #include <sys/sockio.h>
+ #endif
+ #ifdef HAVE_NET_IF_H
+ #include <net/if.h>
+ #endif
+ #ifdef HAVE_NETINET_IN_H
+ #include <netinet/in.h>
+ #endif
+
+ #ifndef FALSE
+ #define FALSE 0
+ #endif
+ #ifndef TRUE
+ #define TRUE !FALSE
+ #endif
+
+ /* return the Media Access Control (MAC) address of
+ the FIRST network interface card (NIC) */
+ int mac_address(unsigned char *data_ptr, size_t data_len)
+ {
+ /* sanity check arguments */
+ if (data_ptr == NULL || data_len < MAC_LEN)
+ return FALSE;
+
+ #if defined(HAVE_IFADDRS_H) && defined(HAVE_NET_IF_DL_H) && defined(HAVE_GETIFADDRS)
+ /* use getifaddrs(3) on BSD class platforms */
+ {
+ struct ifaddrs *ifap;
+ struct ifaddrs *ifap_head;
+ const struct sockaddr_dl *sdl;
+ unsigned char *ucp;
+ int i;
+
+ if (getifaddrs(&ifap_head) != 0)
+ return FALSE;
+ for (ifap = ifap_head; ifap != NULL; ifap = ifap->ifa_next) {
+ if (ifap->ifa_addr != NULL && ifap->ifa_addr->sa_family == AF_LINK) {
+ sdl = (const struct sockaddr_dl *)ifap->ifa_addr;
+ ucp = (unsigned char *)(sdl->sdl_data + sdl->sdl_nlen);
+ if (ucp != NULL && sdl->sdl_alen > 0) {
+ for (i = 0; i < MAC_LEN && i < sdl->sdl_alen; i++, ucp++)
+ data_ptr[i] = (*ucp & 0xff);
+ freeifaddrs(ifap_head);
+ return TRUE;
+ }
+ }
+ }
+ freeifaddrs(ifap_head);
+ }
+ #endif
+
+ return FALSE;
+ }
+
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