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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	libexec/rpc.rstatd/rstatd.c	Lines:	0	73	0.0 %
Date:	2017-11-13	Branches:	0	33	0.0 %


/*	$OpenBSD: rstatd.c,v 1.29 2015/12/01 20:25:16 tim Exp $	*/

/*-
 * Copyright (c) 1993, John Brezak
 * 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. The name of the author may not 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/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <signal.h>
#include <pwd.h>
#include <syslog.h>
#include <errno.h>
#include <rpc/rpc.h>
#include <rpcsvc/rstat.h>

extern void rstat_service(struct svc_req *, SVCXPRT *);

void my_svc_run(void);

int from_inetd = 1;	/* started from inetd ? */
int closedown = 20;	/* how long to wait before going dormant */

volatile sig_atomic_t gotsig;

/* ARGSUSED */
static void
getsig(int signo)
{
	gotsig = 1;
}


int
main(int argc, char *argv[])
{
	int sock = 0, proto = 0;
	socklen_t fromlen;
	struct passwd *pw;
	struct sockaddr_storage from;
	SVCXPRT *transp;

	openlog("rpc.rstatd", LOG_NDELAY|LOG_CONS|LOG_PID, LOG_DAEMON);

	if ((pw = getpwnam("_rstatd")) == NULL) {
		syslog(LOG_ERR, "no such user _rstatd");
		exit(1);
	}
	if (chroot("/var/empty") == -1) {
		syslog(LOG_ERR, "cannot chdir to /var/empty.");
		exit(1);
	}
	chdir("/");

	setgroups(1, &pw->pw_gid);
	setegid(pw->pw_gid);
	setgid(pw->pw_gid);
	seteuid(pw->pw_uid);
	setuid(pw->pw_uid);

	if (argc == 2)
		closedown = strtonum(argv[1], 1, INT_MAX, NULL);
	if (closedown == 0)
		closedown = 20;

	/*
	 * See if inetd started us
	 */
	fromlen = sizeof(from);
	if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
		from_inetd = 0;
		sock = RPC_ANYSOCK;
		proto = IPPROTO_UDP;
	}

	if (!from_inetd) {
		daemon(0, 0);

		(void)pmap_unset(RSTATPROG, RSTATVERS_TIME);
		(void)pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
		(void)pmap_unset(RSTATPROG, RSTATVERS_ORIG);

		(void) signal(SIGINT, getsig);
		(void) signal(SIGTERM, getsig);
		(void) signal(SIGHUP, getsig);
	}

	transp = svcudp_create(sock);
	if (transp == NULL) {
		syslog(LOG_ERR, "cannot create udp service.");
		exit(1);
	}
	if (!svc_register(transp, RSTATPROG, RSTATVERS_TIME, rstat_service, proto)) {
		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, udp).");
		exit(1);
	}
	if (!svc_register(transp, RSTATPROG, RSTATVERS_SWTCH, rstat_service, proto)) {
		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, udp).");
		exit(1);
	}
	if (!svc_register(transp, RSTATPROG, RSTATVERS_ORIG, rstat_service, proto)) {
		syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, udp).");
		exit(1);
	}

	my_svc_run();
	syslog(LOG_ERR, "svc_run returned");
	exit(1);
}

void
my_svc_run(void)
{
	extern volatile sig_atomic_t wantupdatestat;
	extern void updatestat(void);
	struct pollfd *pfd = NULL, *newp;
	int nready, saved_max_pollfd = 0;

	for (;;) {
		if (wantupdatestat) {
			wantupdatestat = 0;
			updatestat();
		}
		if (gotsig) {
			(void) pmap_unset(RSTATPROG, RSTATVERS_TIME);
			(void) pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
			(void) pmap_unset(RSTATPROG, RSTATVERS_ORIG);
			exit(0);
		}
		if (svc_max_pollfd > saved_max_pollfd) {
			newp = reallocarray(pfd, svc_max_pollfd, sizeof(*pfd));
			if (newp == NULL) {
				free(pfd);
				perror("svc_run: - realloc failed");
				return;
			}
			pfd = newp;
			saved_max_pollfd = svc_max_pollfd;
		}
		memcpy(pfd, svc_pollfd, svc_max_pollfd * sizeof(*pfd));

		nready = poll(pfd, svc_max_pollfd, INFTIM);
		switch (nready) {
		case -1:
			if (errno == EINTR)
				continue;
			perror("svc_run: - poll failed");
			free(pfd);
			return;
		case 0:
			continue;
		default:
			svc_getreq_poll(pfd, nready);
		}
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: rstatd.c,v 1.29 2015/12/01 20:25:16 tim Exp $ */
2
3			/*-
4			* Copyright (c) 1993, John Brezak
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			* 3. The name of the author may not be used to endorse or promote products
16			* derived from this software without specific prior written permission.
17			*
18			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28			* SUCH DAMAGE.
29			*/
30
31			#include <sys/types.h>
32			#include <sys/socket.h>
33			#include <stdio.h>
34			#include <stdlib.h>
35			#include <string.h>
36			#include <unistd.h>
37			#include <limits.h>
38			#include <signal.h>
39			#include <pwd.h>
40			#include <syslog.h>
41			#include <errno.h>
42			#include <rpc/rpc.h>
43			#include <rpcsvc/rstat.h>
44
45			extern void rstat_service(struct svc_req , SVCXPRT );
46
47			void my_svc_run(void);
48
49			int from_inetd = 1; /* started from inetd ? */
50			int closedown = 20; /* how long to wait before going dormant */
51
52			volatile sig_atomic_t gotsig;
53
54			/* ARGSUSED */
55			static void
56			getsig(int signo)
57			{
58			gotsig = 1;
59			}
60
61
62			int
63			main(int argc, char *argv[])
64			{
65			int sock = 0, proto = 0;
66			socklen_t fromlen;
67			struct passwd *pw;
68			struct sockaddr_storage from;
69			SVCXPRT *transp;
70
71			openlog("rpc.rstatd", LOG_NDELAY\|LOG_CONS\|LOG_PID, LOG_DAEMON);
72
73			if ((pw = getpwnam("_rstatd")) == NULL) {
74			syslog(LOG_ERR, "no such user _rstatd");
75			exit(1);
76			}
77			if (chroot("/var/empty") == -1) {
78			syslog(LOG_ERR, "cannot chdir to /var/empty.");
79			exit(1);
80			}
81			chdir("/");
82
83			setgroups(1, &pw->pw_gid);
84			setegid(pw->pw_gid);
85			setgid(pw->pw_gid);
86			seteuid(pw->pw_uid);
87			setuid(pw->pw_uid);
88
89			if (argc == 2)
90			closedown = strtonum(argv[1], 1, INT_MAX, NULL);
91			if (closedown == 0)
92			closedown = 20;
93
94			/*
95			* See if inetd started us
96			*/
97			fromlen = sizeof(from);
98			if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
99			from_inetd = 0;
100			sock = RPC_ANYSOCK;
101			proto = IPPROTO_UDP;
102			}
103
104			if (!from_inetd) {
105			daemon(0, 0);
106
107			(void)pmap_unset(RSTATPROG, RSTATVERS_TIME);
108			(void)pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
109			(void)pmap_unset(RSTATPROG, RSTATVERS_ORIG);
110
111			(void) signal(SIGINT, getsig);
112			(void) signal(SIGTERM, getsig);
113			(void) signal(SIGHUP, getsig);
114			}
115
116			transp = svcudp_create(sock);
117			if (transp == NULL) {
118			syslog(LOG_ERR, "cannot create udp service.");
119			exit(1);
120			}
121			if (!svc_register(transp, RSTATPROG, RSTATVERS_TIME, rstat_service, proto)) {
122			syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_TIME, udp).");
123			exit(1);
124			}
125			if (!svc_register(transp, RSTATPROG, RSTATVERS_SWTCH, rstat_service, proto)) {
126			syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_SWTCH, udp).");
127			exit(1);
128			}
129			if (!svc_register(transp, RSTATPROG, RSTATVERS_ORIG, rstat_service, proto)) {
130			syslog(LOG_ERR, "unable to register (RSTATPROG, RSTATVERS_ORIG, udp).");
131			exit(1);
132			}
133
134			my_svc_run();
135			syslog(LOG_ERR, "svc_run returned");
136			exit(1);
137			}
138
139			void
140			my_svc_run(void)
141			{
142			extern volatile sig_atomic_t wantupdatestat;
143			extern void updatestat(void);
144			struct pollfd pfd = NULL, newp;
145			int nready, saved_max_pollfd = 0;
146
147			for (;;) {
148			if (wantupdatestat) {
149			wantupdatestat = 0;
150			updatestat();
151			}
152			if (gotsig) {
153			(void) pmap_unset(RSTATPROG, RSTATVERS_TIME);
154			(void) pmap_unset(RSTATPROG, RSTATVERS_SWTCH);
155			(void) pmap_unset(RSTATPROG, RSTATVERS_ORIG);
156			exit(0);
157			}
158			if (svc_max_pollfd > saved_max_pollfd) {
159			newp = reallocarray(pfd, svc_max_pollfd, sizeof(*pfd));
160			if (newp == NULL) {
161			free(pfd);
162			perror("svc_run: - realloc failed");
163			return;
164			}
165			pfd = newp;
166			saved_max_pollfd = svc_max_pollfd;
167			}
168			memcpy(pfd, svc_pollfd, svc_max_pollfd * sizeof(*pfd));
169
170			nready = poll(pfd, svc_max_pollfd, INFTIM);
171			switch (nready) {
172			case -1:
173			if (errno == EINTR)
174			continue;
175			perror("svc_run: - poll failed");
176			free(pfd);
177			return;
178			case 0:
179			continue;
180			default:
181			svc_getreq_poll(pfd, nready);
182			}
183			}
184			}