*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 021110-1307, USA.
+ * Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 0211-1301 USA
*
*/
.sin6_family = AF_INET6,
.sin6_addr = IN6ADDR_ANY_INIT,
};
- int sock;
+ int sock, result = 0;
sock = socket(sap->sa_family, SOCK_DGRAM, IPPROTO_UDP);
if (sock < 0)
switch (sap->sa_family) {
case AF_INET:
- if (bind(sock, SAFE_SOCKADDR(&sin), sizeof(sin)) < 0) {
- close(sock);
- return 0;
- }
+ if (bind(sock, SAFE_SOCKADDR(&sin), sizeof(sin)) < 0)
+ goto out;
break;
case AF_INET6:
- if (bind(sock, SAFE_SOCKADDR(&sin6), sizeof(sin6)) < 0) {
- close(sock);
- return 0;
- }
+ if (bind(sock, SAFE_SOCKADDR(&sin6), sizeof(sin6)) < 0)
+ goto out;
break;
default:
errno = EAFNOSUPPORT;
- return 0;
+ goto out;
}
- if (connect(sock, sap, salen) < 0) {
- close(sock);
- return 0;
- }
+ if (connect(sock, sap, salen) < 0)
+ goto out;
+
+ result = !getsockname(sock, buf, buflen);
- return !getsockname(sock, buf, buflen);
+out:
+ close(sock);
+ return result;
}
/*
return 1;
}
+
+/*
+ * Discover mount server's hostname/address by examining mount options
+ *
+ * Returns a pointer to a string that the caller must free, on
+ * success; otherwise NULL is returned.
+ */
+static char *nfs_umount_hostname(struct mount_options *options,
+ char *hostname)
+{
+ char *option;
+
+ option = po_get(options, "mountaddr");
+ if (option)
+ goto out;
+ option = po_get(options, "mounthost");
+ if (option)
+ goto out;
+ option = po_get(options, "addr");
+ if (option)
+ goto out;
+
+ return hostname;
+
+out:
+ free(hostname);
+ return strdup(option);
+}
+
+
+/*
+ * Returns EX_SUCCESS if mount options and device name have been
+ * parsed successfully; otherwise EX_FAIL.
+ */
+int nfs_umount_do_umnt(struct mount_options *options,
+ char **hostname, char **dirname)
+{
+ union nfs_sockaddr address;
+ struct sockaddr *sap = &address.sa;
+ socklen_t salen = sizeof(address);
+ struct pmap nfs_pmap, mnt_pmap;
+ sa_family_t family;
+
+ if (!nfs_options2pmap(options, &nfs_pmap, &mnt_pmap))
+ return EX_FAIL;
+
+ /* Skip UMNT call for vers=4 mounts */
+ if (nfs_pmap.pm_vers == 4)
+ return EX_SUCCESS;
+
+ *hostname = nfs_umount_hostname(options, *hostname);
+ if (!*hostname) {
+ nfs_error(_("%s: out of memory"), progname);
+ return EX_FAIL;
+ }
+
+ if (!nfs_mount_proto_family(options, &family))
+ return 0;
+ if (!nfs_lookup(*hostname, family, sap, &salen))
+ /* nfs_lookup reports any errors */
+ return EX_FAIL;
+
+ if (nfs_advise_umount(sap, salen, &mnt_pmap, dirname) == 0)
+ /* nfs_advise_umount reports any errors */
+ return EX_FAIL;
+
+ return EX_SUCCESS;
+}