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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	sbin/isakmpd/monitor_fdpass.c	Lines:	0	42	0.0 %
Date:	2016-12-06	Branches:	0	16	0.0 %


/*	$OpenBSD: monitor_fdpass.c,v 1.17 2016/02/29 20:22:36 jca 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;
	union {
		struct cmsghdr hdr;
		char buf[CMSG_SPACE(sizeof(int))];
	} cmsgbuf;
	char		ch = '\0';
	struct cmsghdr *cmsg;
	struct iovec    vec;
	ssize_t         n;

	bzero(&msg, sizeof msg);
	msg.msg_control = (caddr_t)&cmsgbuf.buf;
	msg.msg_controllen = sizeof(cmsgbuf.buf);
	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 %zd", n);
		return -1;
	}
	return 0;
}

int
mm_receive_fd(int socket)
{
	struct msghdr   msg;
	union {
		struct cmsghdr hdr;
		char buf[CMSG_SPACE(sizeof(int))];
	} cmsgbuf;
	char		ch;
	struct cmsghdr *cmsg;
	struct iovec    vec;
	ssize_t         n;
	int             fd;

	bzero(&msg, sizeof msg);
	vec.iov_base = &ch;
	vec.iov_len = 1;
	msg.msg_iov = &vec;
	msg.msg_iovlen = 1;
	msg.msg_control = &cmsgbuf.buf;
	msg.msg_controllen = sizeof(cmsgbuf.buf);

	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 %zd",
		    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;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: monitor_fdpass.c,v 1.17 2016/02/29 20:22:36 jca Exp $ */
2
3			/*
4			* Copyright 2001 Niels Provos <provos@citi.umich.edu>
5			* All rights reserved.
6			*
7			* Redistribution and use in source and binary forms, with or without
8			* modification, are permitted provided that the following conditions
9			* are met:
10			* 1. Redistributions of source code must retain the above copyright
11			* notice, this list of conditions and the following disclaimer.
12			* 2. Redistributions in binary form must reproduce the above copyright
13			* notice, this list of conditions and the following disclaimer in the
14			* documentation and/or other materials provided with the distribution.
15			*
16			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26			*/
27
28			#include <sys/types.h>
29			#include <sys/socket.h>
30			#include <sys/uio.h>
31
32			#include <errno.h>
33			#include <string.h>
34
35			#include "log.h"
36			#include "monitor.h"
37
38			int
39			mm_send_fd(int socket, int fd)
40			{
41			struct msghdr msg;
42			union {
43			struct cmsghdr hdr;
44			char buf[CMSG_SPACE(sizeof(int))];
45			} cmsgbuf;
46			char ch = '\0';
47			struct cmsghdr *cmsg;
48			struct iovec vec;
49			ssize_t n;
50
51			bzero(&msg, sizeof msg);
52			msg.msg_control = (caddr_t)&cmsgbuf.buf;
53			msg.msg_controllen = sizeof(cmsgbuf.buf);
54			cmsg = CMSG_FIRSTHDR(&msg);
55			cmsg->cmsg_len = CMSG_LEN(sizeof(int));
56			cmsg->cmsg_level = SOL_SOCKET;
57			cmsg->cmsg_type = SCM_RIGHTS;
58			(int )CMSG_DATA(cmsg) = fd;
59
60			vec.iov_base = &ch;
61			vec.iov_len = 1;
62			msg.msg_iov = &vec;
63			msg.msg_iovlen = 1;
64
65			if ((n = sendmsg(socket, &msg, 0)) == -1) {
66			log_error("mm_send_fd: sendmsg(%d)", fd);
67			return -1;
68			}
69			if (n != 1) {
70			log_error("mm_send_fd: sendmsg: expected sent 1 got %zd", n);
71			return -1;
72			}
73			return 0;
74			}
75
76			int
77			mm_receive_fd(int socket)
78			{
79			struct msghdr msg;
80			union {
81			struct cmsghdr hdr;
82			char buf[CMSG_SPACE(sizeof(int))];
83			} cmsgbuf;
84			char ch;
85			struct cmsghdr *cmsg;
86			struct iovec vec;
87			ssize_t n;
88			int fd;
89
90			bzero(&msg, sizeof msg);
91			vec.iov_base = &ch;
92			vec.iov_len = 1;
93			msg.msg_iov = &vec;
94			msg.msg_iovlen = 1;
95			msg.msg_control = &cmsgbuf.buf;
96			msg.msg_controllen = sizeof(cmsgbuf.buf);
97
98			if ((n = recvmsg(socket, &msg, 0)) == -1) {
99			log_error("mm_receive_fd: recvmsg");
100			return -1;
101			}
102			if (n != 1) {
103			log_error("mm_receive_fd: recvmsg: expected received 1 got %zd",
104			n);
105			return -1;
106			}
107			cmsg = CMSG_FIRSTHDR(&msg);
108			if (cmsg == NULL) {
109			log_error("mm_receive_fd: no message header");
110			return -1;
111			}
112			if (cmsg->cmsg_type != SCM_RIGHTS) {
113			log_error("mm_receive_fd: expected type %d got %d", SCM_RIGHTS,
114			cmsg->cmsg_type);
115			return -1;
116			}
117			fd = ((int )CMSG_DATA(cmsg));
118			return fd;
119			}