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authorOthmar Gsenger <otti@anytun.org>2007-07-30 19:37:53 +0000
committerOthmar Gsenger <otti@anytun.org>2007-07-30 19:37:53 +0000
commit6585e5ad764ee2414d9b01f30784b6549bc8f58e (patch)
tree4ea258d5327838363dc3ac66d09ecc94686f3e26 /keyexchange/isakmpd-20041012/monitor_fdpass.c
parentripe requests, final (diff)
added keyexchange
Diffstat (limited to 'keyexchange/isakmpd-20041012/monitor_fdpass.c')
-rw-r--r--keyexchange/isakmpd-20041012/monitor_fdpass.c112
1 files changed, 112 insertions, 0 deletions
diff --git a/keyexchange/isakmpd-20041012/monitor_fdpass.c b/keyexchange/isakmpd-20041012/monitor_fdpass.c
new file mode 100644
index 0000000..0159653
--- /dev/null
+++ b/keyexchange/isakmpd-20041012/monitor_fdpass.c
@@ -0,0 +1,112 @@
+/* $OpenBSD: monitor_fdpass.c,v 1.11 2004/10/01 04:08:45 jsg Exp $ */
+
+/*
+ * Copyright 2001 Niels Provos <provos@citi.umich.edu>
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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/types.h>
+#include <sys/socket.h>
+#include <sys/uio.h>
+
+#include <errno.h>
+#include <string.h>
+
+#include "log.h"
+#include "monitor.h"
+
+int
+mm_send_fd(int socket, int fd)
+{
+ struct msghdr msg;
+ char tmp[CMSG_SPACE(sizeof(int))], ch = '\0';
+ struct cmsghdr *cmsg;
+ struct iovec vec;
+ ssize_t n;
+
+ memset(&msg, 0, sizeof msg);
+ msg.msg_control = (caddr_t) tmp;
+ msg.msg_controllen = CMSG_LEN(sizeof(int));
+ cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+ *(int *)CMSG_DATA(cmsg) = fd;
+
+ vec.iov_base = &ch;
+ vec.iov_len = 1;
+ msg.msg_iov = &vec;
+ msg.msg_iovlen = 1;
+
+ if ((n = sendmsg(socket, &msg, 0)) == -1) {
+ log_error("mm_send_fd: sendmsg(%d)", fd);
+ return -1;
+ }
+ if (n != 1) {
+ log_error("mm_send_fd: sendmsg: expected sent 1 got %ld",
+ (long)n);
+ return -1;
+ }
+ return 0;
+}
+
+int
+mm_receive_fd(int socket)
+{
+ struct msghdr msg;
+ char tmp[CMSG_SPACE(sizeof(int))], ch;
+ struct cmsghdr *cmsg;
+ struct iovec vec;
+ ssize_t n;
+ int fd;
+
+ memset(&msg, 0, sizeof msg);
+ vec.iov_base = &ch;
+ vec.iov_len = 1;
+ msg.msg_iov = &vec;
+ msg.msg_iovlen = 1;
+ msg.msg_control = tmp;
+ msg.msg_controllen = sizeof tmp;
+
+ if ((n = recvmsg(socket, &msg, 0)) == -1) {
+ log_error("mm_receive_fd: recvmsg");
+ return -1;
+ }
+ if (n != 1) {
+ log_error("mm_receive_fd: recvmsg: expected received 1 got %ld",
+ (long)n);
+ return -1;
+ }
+ cmsg = CMSG_FIRSTHDR(&msg);
+ if (cmsg == NULL) {
+ log_error("mm_receive_fd: no message header");
+ return -1;
+ }
+ if (cmsg->cmsg_type != SCM_RIGHTS) {
+ log_error("mm_receive_fd: expected type %d got %d", SCM_RIGHTS,
+ cmsg->cmsg_type);
+ return -1;
+ }
+ fd = (*(int *)CMSG_DATA(cmsg));
+ return fd;
+}