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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	libexec/rpc.rwalld/rwalld.c	Lines:	0	55	0.0 %
Date:	2017-11-07	Branches:	0	25	0.0 %


/*	$OpenBSD: rwalld.c,v 1.16 2017/05/27 07:39:27 tedu Exp $	*/

/*
 * Copyright (c) 1993 Christopher G. Demetriou
 * 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 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/wait.h>
#include <pwd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <rpc/rpc.h>
#include <rpcsvc/rwall.h>

#define WALL_CMD "/usr/bin/wall -n"

void wallprog_1(struct svc_req *, SVCXPRT *);

int from_inetd = 1;

static void
cleanup(int signo)
{
	(void) pmap_unset(WALLPROG, WALLVERS);		/* XXX signal race */
	_exit(0);
}

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

	struct passwd *pw = getpwnam("_rwalld");
	if (pw == NULL) {
		syslog(LOG_ERR, "no such user _rwalld");
		exit(1);
	}

	setgroups(1, &pw->pw_gid);
	setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid);
	setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid);

	/*
	 * 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(WALLPROG, WALLVERS);

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

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

	transp = svcudp_create(sock);
	if (transp == NULL) {
		syslog(LOG_ERR, "cannot create udp service.");
		exit(1);
	}
	if (!svc_register(transp, WALLPROG, WALLVERS, wallprog_1, proto)) {
		syslog(LOG_ERR, "unable to register (WALLPROG, WALLVERS, %s).",
		    proto ? "udp" : "(inetd)");
		exit(1);
	}

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

}

void *
wallproc_wall_1_svc(char **s, struct svc_req *rqstp)
{
	FILE *pfp;

	pfp = popen(WALL_CMD, "w");
	if (pfp != NULL) {
		fprintf(pfp, "\007\007%s", *s);
		pclose(pfp);
	}

	return (*s);
}

void
wallprog_1(struct svc_req *rqstp, SVCXPRT *transp)
{
	char *(*local)(char **, struct svc_req *);
	xdrproc_t xdr_argument, xdr_result;
	union {
		char *wallproc_wall_1_arg;
	} argument;
	char *result;

	switch (rqstp->rq_proc) {
	case NULLPROC:
		(void)svc_sendreply(transp, xdr_void, (char *)NULL);
		goto leave;

	case WALLPROC_WALL:
		xdr_argument = (xdrproc_t)xdr_wrapstring;
		xdr_result = (xdrproc_t)xdr_void;
		local = (char *(*)(char **, struct svc_req *))
		    wallproc_wall_1_svc;
		break;

	default:
		svcerr_noproc(transp);
		goto leave;
	}
	bzero((char *)&argument, sizeof(argument));
	if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)) {
		svcerr_decode(transp);
		goto leave;
	}
	result = (*local)((char **)&argument, rqstp);
	if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
		svcerr_systemerr(transp);
	}
	if (!svc_freeargs(transp, xdr_argument, (caddr_t)&argument)) {
		syslog(LOG_ERR, "unable to free arguments");
		exit(1);
	}
leave:
	if (from_inetd)
		exit(0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: rwalld.c,v 1.16 2017/05/27 07:39:27 tedu Exp $ */
2
3			/*
4			* Copyright (c) 1993 Christopher G. Demetriou
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
16			* products derived from this software without specific prior written
17			* permission.
18			*
19			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
20			* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21			* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
23			* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29			* SUCH DAMAGE.
30			*/
31
32			#include <sys/types.h>
33			#include <sys/socket.h>
34			#include <sys/wait.h>
35			#include <pwd.h>
36			#include <stdlib.h>
37			#include <stdio.h>
38			#include <string.h>
39			#include <syslog.h>
40			#include <errno.h>
41			#include <unistd.h>
42			#include <signal.h>
43			#include <rpc/rpc.h>
44			#include <rpcsvc/rwall.h>
45
46			#define WALL_CMD "/usr/bin/wall -n"
47
48			void wallprog_1(struct svc_req , SVCXPRT );
49
50			int from_inetd = 1;
51
52			static void
53			cleanup(int signo)
54			{
55			(void) pmap_unset(WALLPROG, WALLVERS); /* XXX signal race */
56			_exit(0);
57			}
58
59			int
60			main(int argc, char *argv[])
61			{
62			int sock = 0, proto = 0;
63			socklen_t fromlen;
64			struct sockaddr_storage from;
65			SVCXPRT *transp;
66
67			struct passwd *pw = getpwnam("_rwalld");
68			if (pw == NULL) {
69			syslog(LOG_ERR, "no such user _rwalld");
70			exit(1);
71			}
72
73			setgroups(1, &pw->pw_gid);
74			setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid);
75			setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid);
76
77			/*
78			* See if inetd started us
79			*/
80			fromlen = sizeof(from);
81			if (getsockname(0, (struct sockaddr *)&from, &fromlen) < 0) {
82			from_inetd = 0;
83			sock = RPC_ANYSOCK;
84			proto = IPPROTO_UDP;
85			}
86
87			if (!from_inetd) {
88			daemon(0, 0);
89
90			(void) pmap_unset(WALLPROG, WALLVERS);
91
92			(void) signal(SIGINT, cleanup);
93			(void) signal(SIGTERM, cleanup);
94			(void) signal(SIGHUP, cleanup);
95			}
96
97			openlog("rpc.rwalld", LOG_CONS\|LOG_PID, LOG_DAEMON);
98
99			transp = svcudp_create(sock);
100			if (transp == NULL) {
101			syslog(LOG_ERR, "cannot create udp service.");
102			exit(1);
103			}
104			if (!svc_register(transp, WALLPROG, WALLVERS, wallprog_1, proto)) {
105			syslog(LOG_ERR, "unable to register (WALLPROG, WALLVERS, %s).",
106			proto ? "udp" : "(inetd)");
107			exit(1);
108			}
109
110			svc_run();
111			syslog(LOG_ERR, "svc_run returned");
112			exit(1);
113
114			}
115
116			void *
117			wallproc_wall_1_svc(char *s, struct svc_req rqstp)
118			{
119			FILE *pfp;
120
121			pfp = popen(WALL_CMD, "w");
122			if (pfp != NULL) {
123			fprintf(pfp, "\007\007%s", *s);
124			pclose(pfp);
125			}
126
127			return (*s);
128			}
129
130			void
131			wallprog_1(struct svc_req rqstp, SVCXPRT transp)
132			{
133			char (local)(char *, struct svc_req );
134			xdrproc_t xdr_argument, xdr_result;
135			union {
136			char *wallproc_wall_1_arg;
137			} argument;
138			char *result;
139
140			switch (rqstp->rq_proc) {
141			case NULLPROC:
142			(void)svc_sendreply(transp, xdr_void, (char *)NULL);
143			goto leave;
144
145			case WALLPROC_WALL:
146			xdr_argument = (xdrproc_t)xdr_wrapstring;
147			xdr_result = (xdrproc_t)xdr_void;
148			local = (char ()(char *, struct svc_req ))
149			wallproc_wall_1_svc;
150			break;
151
152			default:
153			svcerr_noproc(transp);
154			goto leave;
155			}
156			bzero((char *)&argument, sizeof(argument));
157			if (!svc_getargs(transp, xdr_argument, (caddr_t)&argument)) {
158			svcerr_decode(transp);
159			goto leave;
160			}
161			result = (local)((char *)&argument, rqstp);
162			if (result != NULL && !svc_sendreply(transp, xdr_result, result)) {
163			svcerr_systemerr(transp);
164			}
165			if (!svc_freeargs(transp, xdr_argument, (caddr_t)&argument)) {
166			syslog(LOG_ERR, "unable to free arguments");
167			exit(1);
168			}
169			leave:
170			if (from_inetd)
171			exit(0);
172			}