-/* @(#)get_myaddress.c 2.1 88/07/29 4.0 RPCSRC */
/*
- * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
- * unrestricted use provided that this legend is included on all tape
- * media and as a part of the software program in whole or part. Users
- * may copy or modify Sun RPC without charge, but are not authorized
- * to license or distribute it to anyone else except as part of a product or
- * program developed by the user.
- *
- * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
- * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
- *
- * Sun RPC is provided with no support and without any obligation on the
- * part of Sun Microsystems, Inc. to assist in its use, correction,
- * modification or enhancement.
+ * get_myaddress.c
*
- * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
- * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
- * OR ANY PART THEREOF.
+ * Get client's IP address via ioctl. This avoids using the yellowpages.
+ * Copyright (c) 2010, Oracle America, Inc.
*
- * In no event will Sun Microsystems, Inc. be liable for any lost revenue
- * or profits or other special, indirect and consequential damages, even if
- * Sun has been advised of the possibility of such damages.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
*
- * Sun Microsystems, Inc.
- * 2550 Garcia Avenue
- * Mountain View, California 94043
- */
-#if !defined(lint) && defined(SCCSIDS)
-static char sccsid[] = "@(#)get_myaddress.c 1.4 87/08/11 Copyr 1984 Sun Micro";
-#endif
-
-/*
- * get_myaddress.c
+ * * 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.
+ * * Neither the name of the "Oracle America, Inc." nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
*
- * Get client's IP address via ioctl. This avoids using the yellowpages.
- * Copyright (C) 1984, Sun Microsystems, Inc.
+ * 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 HOLDER 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 <rpc/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <unistd.h>
+#include <libintl.h>
#include <net/if.h>
+#include <ifaddrs.h>
#include <sys/ioctl.h>
/* Order of following two #includes reversed by roland@gnu */
#include <netinet/in.h>
void
get_myaddress (struct sockaddr_in *addr)
{
- int s;
- char buf[BUFSIZ];
- struct ifconf ifc;
- struct ifreq ifreq, *ifr;
- int len, loopback = 0;
+ struct ifaddrs *ifa;
- if ((s = __socket (AF_INET, SOCK_DGRAM, 0)) < 0)
+ if (getifaddrs (&ifa) != 0)
{
- perror ("get_myaddress: socket");
- exit (1);
- }
- ifc.ifc_len = sizeof (buf);
- ifc.ifc_buf = buf;
- if (__ioctl (s, SIOCGIFCONF, (char *) &ifc) < 0)
- {
- perror (_("get_myaddress: ioctl (get interface configuration)"));
+ perror ("get_myaddress: getifaddrs");
exit (1);
}
+ int loopback = 0;
+ struct ifaddrs *run;
+
again:
- ifr = ifc.ifc_req;
- for (len = ifc.ifc_len; len; len -= sizeof ifreq)
+ run = ifa;
+ while (run != NULL)
{
- ifreq = *ifr;
- if (__ioctl (s, SIOCGIFFLAGS, (char *) &ifreq) < 0)
- {
- perror ("get_myaddress: ioctl");
- exit (1);
- }
- if ((ifreq.ifr_flags & IFF_UP) && (ifr->ifr_addr.sa_family == AF_INET)
- && (!(ifreq.ifr_flags & IFF_LOOPBACK) ||
- (loopback == 1 && (ifreq.ifr_flags & IFF_LOOPBACK))))
+ if ((run->ifa_flags & IFF_UP)
+ && run->ifa_addr != NULL
+ && run->ifa_addr->sa_family == AF_INET
+ && (!(run->ifa_flags & IFF_LOOPBACK)
+ || (loopback == 1 && (run->ifa_flags & IFF_LOOPBACK))))
{
- *addr = *((struct sockaddr_in *) &ifr->ifr_addr);
+ *addr = *((struct sockaddr_in *) run->ifa_addr);
addr->sin_port = htons (PMAPPORT);
- __close (s);
- return;
+ goto out;
}
- ifr++;
+
+ run = run->ifa_next;
}
+
if (loopback == 0)
{
loopback = 1;
goto again;
}
- __close (s);
+ out:
+ freeifaddrs (ifa);
+
+ /* The function is horribly specified. It does not return any error
+ if no interface is up. Probably this won't happen (at least
+ loopback is there) but still... */
}
+#ifdef EXPORT_RPC_SYMBOLS
+libc_hidden_def (get_myaddress)
+#else
+libc_hidden_nolink_sunrpc (get_myaddress, GLIBC_2_0)
+#endif
git.samba.org / jlayton / glibc.git / blobdiff