Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/talk/ctl_transact.c	Lines:	0	27	0.0 %
Date:	2017-11-13	Branches:	0	24	0.0 %


/*	$OpenBSD: ctl_transact.c,v 1.13 2016/02/01 07:29:25 mestre Exp $	*/
/*	$NetBSD: ctl_transact.c,v 1.3 1994/12/09 02:14:12 jtc Exp $	*/

/*
 * Copyright (c) 1983, 1993
 *	The Regents of the University of California.  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 BY THE REGENTS 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 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/socket.h>
#include <netinet/in.h>

#include <errno.h>
#include <poll.h>

#include "talk.h"
#include "talk_ctl.h"

#define CTL_WAIT 2	/* time to wait for a response, in seconds */

/*
 * SOCKDGRAM is unreliable, so we must repeat messages if we have
 * not received an acknowledgement within a reasonable amount
 * of time
 */
void
ctl_transact(struct in_addr target, CTL_MSG msg, int type, CTL_RESPONSE *rp)
{
	struct pollfd pfd[1];
	int nready, cc;

	msg.type = type;
	daemon_addr.sin_addr = target;
	daemon_addr.sin_port = daemon_port;
	pfd[0].fd = ctl_sockt;
	pfd[0].events = POLLIN;

	/*
	 * Keep sending the message until a response of
	 * the proper type is obtained.
	 */
	do {
		/* resend message until a response is obtained */
		do {
			cc = sendto(ctl_sockt, (char *)&msg, sizeof (msg), 0,
			    (struct sockaddr *)&daemon_addr,
			    sizeof (daemon_addr));
			if (cc != sizeof (msg)) {
				if (errno == EINTR)
					continue;
				quit("Error on write to talk daemon", 1);
			}
			nready = poll(pfd, 1, CTL_WAIT * 1000);
			if (nready < 0) {
				if (errno == EINTR)
					continue;
				quit("Error waiting for daemon response", 1);
			}
		} while (nready == 0);
		/*
		 * Keep reading while there are queued messages
		 * (this is not necessary, it just saves extra
		 * request/acknowledgements being sent)
		 */
		do {
			cc = recv(ctl_sockt, (char *)rp, sizeof (*rp), 0);
			if (cc < 0) {
				if (errno == EINTR)
					continue;
				quit("Error on read from talk daemon", 1);
			}
			nready = poll(pfd, 1, 0);
		} while (nready > 0 && (rp->vers != TALK_VERSION ||
		    rp->type != type));
	} while (rp->vers != TALK_VERSION || rp->type != type);
	rp->id_num = ntohl(rp->id_num);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: ctl_transact.c,v 1.13 2016/02/01 07:29:25 mestre Exp $ */
2			/* $NetBSD: ctl_transact.c,v 1.3 1994/12/09 02:14:12 jtc Exp $ */
3
4			/*
5			* Copyright (c) 1983, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			#include <sys/socket.h>
34			#include <netinet/in.h>
35
36			#include <errno.h>
37			#include <poll.h>
38
39			#include "talk.h"
40			#include "talk_ctl.h"
41
42			#define CTL_WAIT 2 /* time to wait for a response, in seconds */
43
44			/*
45			* SOCKDGRAM is unreliable, so we must repeat messages if we have
46			* not received an acknowledgement within a reasonable amount
47			* of time
48			*/
49			void
50			ctl_transact(struct in_addr target, CTL_MSG msg, int type, CTL_RESPONSE *rp)
51			{
52			struct pollfd pfd[1];
53			int nready, cc;
54
55			msg.type = type;
56			daemon_addr.sin_addr = target;
57			daemon_addr.sin_port = daemon_port;
58			pfd[0].fd = ctl_sockt;
59			pfd[0].events = POLLIN;
60
61			/*
62			* Keep sending the message until a response of
63			* the proper type is obtained.
64			*/
65			do {
66			/* resend message until a response is obtained */
67			do {
68			cc = sendto(ctl_sockt, (char *)&msg, sizeof (msg), 0,
69			(struct sockaddr *)&daemon_addr,
70			sizeof (daemon_addr));
71			if (cc != sizeof (msg)) {
72			if (errno == EINTR)
73			continue;
74			quit("Error on write to talk daemon", 1);
75			}
76			nready = poll(pfd, 1, CTL_WAIT * 1000);
77			if (nready < 0) {
78			if (errno == EINTR)
79			continue;
80			quit("Error waiting for daemon response", 1);
81			}
82			} while (nready == 0);
83			/*
84			* Keep reading while there are queued messages
85			* (this is not necessary, it just saves extra
86			* request/acknowledgements being sent)
87			*/
88			do {
89			cc = recv(ctl_sockt, (char )rp, sizeof (rp), 0);
90			if (cc < 0) {
91			if (errno == EINTR)
92			continue;
93			quit("Error on read from talk daemon", 1);
94			}
95			nready = poll(pfd, 1, 0);
96			} while (nready > 0 && (rp->vers != TALK_VERSION \|\|
97			rp->type != type));
98			} while (rp->vers != TALK_VERSION \|\| rp->type != type);
99			rp->id_num = ntohl(rp->id_num);
100			}