+/*
+ Copyright (c) 2004 The Regents of the University of Michigan.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ 1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ 2. 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.
+ 3. Neither the name of the University nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED ``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 REGENTS 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 <sys/param.h>
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "svcgssd.h"
+#include "err_util.h"
+
+void
+gssd_run()
+{
+ int ret;
+ FILE *f;
+ struct pollfd pollfd;
+
+#define NULLRPC_FILE "/proc/net/rpc/auth.rpcsec.init/channel"
+
+ f = fopen(NULLRPC_FILE, "rw");
+
+ if (!f) {
+ printerr(0, "failed to open %s: %s\n",
+ NULLRPC_FILE, strerror(errno));
+ exit(1);
+ }
+ pollfd.fd = fileno(f);
+ pollfd.events = POLLIN;
+ while (1) {
+ int save_err;
+
+ pollfd.revents = 0;
+ printerr(1, "entering poll\n");
+ ret = poll(&pollfd, 1, -1);
+ save_err = errno;
+ printerr(1, "leaving poll\n");
+ if (ret < 0) {
+ if (save_err != EINTR)
+ printerr(0, "error return from poll: %s\n",
+ strerror(save_err));
+ } else if (ret == 0) {
+ /* timeout; shouldn't happen. */
+ } else {
+ if (ret != 1) {
+ printerr(0, "bug: unexpected poll return %d\n",
+ ret);
+ exit(1);
+ }
+ if (pollfd.revents & POLLIN)
+ handle_nullreq(f);
+ }
+ }
+}