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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	libexec/login_token/login_token.c	Lines:	0	80	0.0 %
Date:	2017-11-07	Branches:	0	52	0.0 %


/*	$OpenBSD: login_token.c,v 1.15 2015/12/22 08:54:16 mmcc Exp $	*/

/*-
 * Copyright (c) 1995, 1996 Berkeley Software Design, Inc. 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Berkeley Software Design,
 *      Inc.
 * 4. The name of Berkeley Software Design, Inc.  may not be used to endorse
 *    or promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``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 BERKELEY SOFTWARE DESIGN, INC. 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.
 *
 *	BSDI $From: login_token.c,v 1.2 1996/09/04 05:33:05 prb Exp $
 */

#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>

#include <err.h>
#include <readpassphrase.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <syslog.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include <login_cap.h>
#include <bsd_auth.h>

#include "token.h"

int
main(int argc, char *argv[])
{
	FILE *back = NULL;
	char *username = NULL;
	char *instance;
	char challenge[1024];
	char response[1024];
	char *pp = NULL;
	int c;
	int mode = 0;
	struct rlimit cds;
	sigset_t blockset;

	(void)setpriority(PRIO_PROCESS, 0, 0);

	/* We block keyboard-generated signals during database accesses. */
	sigemptyset(&blockset);
	sigaddset(&blockset, SIGINT);
	sigaddset(&blockset, SIGQUIT);
	sigaddset(&blockset, SIGTSTP);

	openlog(NULL, LOG_ODELAY, LOG_AUTH);

	cds.rlim_cur = 0;
	cds.rlim_max = 0;
	if (setrlimit(RLIMIT_CORE, &cds) < 0)
		syslog(LOG_ERR, "couldn't set core dump size to 0: %m");

	if (pledge("stdio rpath wpath cpath fattr flock getpw tty", NULL) == -1) {
		syslog(LOG_ERR, "pledge: %m");
		exit(1);
	}

	(void)sigprocmask(SIG_BLOCK, &blockset, NULL);
	if (token_init(argv[0]) < 0) {
		syslog(LOG_ERR, "unknown token type");
		errx(1, "unknown token type");
	}
	(void)sigprocmask(SIG_UNBLOCK, &blockset, NULL);

	while ((c = getopt(argc, argv, "ds:v:")) != -1)
		switch (c) {
		case 'd':		/* to remain undocumented */
			back = stdout;
			break;
		case 'v':
			break;
		case 's':	/* service */
			if (strcmp(optarg, "login") == 0)
				mode = 0;
			else if (strcmp(optarg, "challenge") == 0)
				mode = 1;
			else if (strcmp(optarg, "response") == 0)
				mode = 2;
			else {
				syslog(LOG_ERR, "%s: invalid service", optarg);
				exit(1);
			}
			break;
		default:
			syslog(LOG_ERR, "usage error");
			exit(1);
		}

	switch (argc - optind) {
	case 2:
	case 1:
		username = argv[optind];
		break;
	default:
		syslog(LOG_ERR, "usage error");
		exit(1);
	}


	if (back == NULL && (back = fdopen(3, "r+")) == NULL)  {
		syslog(LOG_ERR, "reopening back channel");
		exit(1);
	}
	if (mode == 2) {
		mode = 0;
		c = -1;
		while (++c < sizeof(challenge) &&
		    read(3, &challenge[c], 1) == 1) {
			if (challenge[c] == '\0' && ++mode == 2)
				break;
			if (challenge[c] == '\0' && mode == 1)
				pp = challenge + c + 1;
		}
		if (mode < 2) {
			syslog(LOG_ERR, "protocol error on back channel");
			exit(1);
		}
	} else {
		(void)sigprocmask(SIG_BLOCK, &blockset, NULL);
		tokenchallenge(username, challenge, sizeof(challenge),
		    tt->proper);
		(void)sigprocmask(SIG_UNBLOCK, &blockset, NULL);
		if (mode == 1) {
			fprintf(back, BI_VALUE " challenge %s\n",
			    auth_mkvalue(challenge));
			fprintf(back, BI_CHALLENGE "\n");
			exit(0);
		}

		pp = readpassphrase(challenge, response, sizeof(response), 0);
		if (pp == NULL)
			exit(1);
		if (*pp == '\0') {
			char buf[64];
			snprintf(buf, sizeof(buf), "%s Response [echo on]: ",
			    tt->proper);
			pp = readpassphrase(buf, response, sizeof(response),
			    RPP_ECHO_ON);
			if (pp == NULL)
				exit(1);
		}
	}

	(void)sigprocmask(SIG_BLOCK, &blockset, NULL);
	if (tokenverify(username, challenge, pp) == 0) {
		fprintf(back, BI_AUTH "\n");

		if ((instance = strchr(username, '.'))) {
			*instance++ = 0;
			if (strcmp(instance, "root") == 0)
				fprintf(back, BI_ROOTOKAY "\n");
		}
		fprintf(back, BI_SECURE "\n");
		exit(0);
	}

	fprintf(back, BI_REJECT "\n");
	exit(1);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: login_token.c,v 1.15 2015/12/22 08:54:16 mmcc Exp $ */
2
3			/*-
4			* Copyright (c) 1995, 1996 Berkeley Software Design, Inc. All rights reserved.
5			*
6			* Redistribution and use in source and binary forms, with or without
7			* modification, are permitted provided that the following conditions
8			* are met:
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			* 2. Redistributions in binary form must reproduce the above copyright
12			* notice, this list of conditions and the following disclaimer in the
13			* documentation and/or other materials provided with the distribution.
14			* 3. All advertising materials mentioning features or use of this software
15			* must display the following acknowledgement:
16			* This product includes software developed by Berkeley Software Design,
17			* Inc.
18			* 4. The name of Berkeley Software Design, Inc. may not be used to endorse
19			* or promote products derived from this software without specific prior
20			* written permission.
21			*
22			* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND
23			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25			* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE
26			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32			* SUCH DAMAGE.
33			*
34			* BSDI $From: login_token.c,v 1.2 1996/09/04 05:33:05 prb Exp $
35			*/
36
37			#include <sys/types.h>
38			#include <sys/time.h>
39			#include <sys/resource.h>
40
41			#include <err.h>
42			#include <readpassphrase.h>
43			#include <signal.h>
44			#include <stdlib.h>
45			#include <stdio.h>
46			#include <syslog.h>
47			#include <limits.h>
48			#include <string.h>
49			#include <unistd.h>
50			#include <login_cap.h>
51			#include <bsd_auth.h>
52
53			#include "token.h"
54
55			int
56			main(int argc, char *argv[])
57			{
58			FILE *back = NULL;
59			char *username = NULL;
60			char *instance;
61			char challenge[1024];
62			char response[1024];
63			char *pp = NULL;
64			int c;
65			int mode = 0;
66			struct rlimit cds;
67			sigset_t blockset;
68
69			(void)setpriority(PRIO_PROCESS, 0, 0);
70
71			/* We block keyboard-generated signals during database accesses. */
72			sigemptyset(&blockset);
73			sigaddset(&blockset, SIGINT);
74			sigaddset(&blockset, SIGQUIT);
75			sigaddset(&blockset, SIGTSTP);
76
77			openlog(NULL, LOG_ODELAY, LOG_AUTH);
78
79			cds.rlim_cur = 0;
80			cds.rlim_max = 0;
81			if (setrlimit(RLIMIT_CORE, &cds) < 0)
82			syslog(LOG_ERR, "couldn't set core dump size to 0: %m");
83
84			if (pledge("stdio rpath wpath cpath fattr flock getpw tty", NULL) == -1) {
85			syslog(LOG_ERR, "pledge: %m");
86			exit(1);
87			}
88
89			(void)sigprocmask(SIG_BLOCK, &blockset, NULL);
90			if (token_init(argv[0]) < 0) {
91			syslog(LOG_ERR, "unknown token type");
92			errx(1, "unknown token type");
93			}
94			(void)sigprocmask(SIG_UNBLOCK, &blockset, NULL);
95
96			while ((c = getopt(argc, argv, "ds:v:")) != -1)
97			switch (c) {
98			case 'd': /* to remain undocumented */
99			back = stdout;
100			break;
101			case 'v':
102			break;
103			case 's': /* service */
104			if (strcmp(optarg, "login") == 0)
105			mode = 0;
106			else if (strcmp(optarg, "challenge") == 0)
107			mode = 1;
108			else if (strcmp(optarg, "response") == 0)
109			mode = 2;
110			else {
111			syslog(LOG_ERR, "%s: invalid service", optarg);
112			exit(1);
113			}
114			break;
115			default:
116			syslog(LOG_ERR, "usage error");
117			exit(1);
118			}
119
120			switch (argc - optind) {
121			case 2:
122			case 1:
123			username = argv[optind];
124			break;
125			default:
126			syslog(LOG_ERR, "usage error");
127			exit(1);
128			}
129
130
131			if (back == NULL && (back = fdopen(3, "r+")) == NULL) {
132			syslog(LOG_ERR, "reopening back channel");
133			exit(1);
134			}
135			if (mode == 2) {
136			mode = 0;
137			c = -1;
138			while (++c < sizeof(challenge) &&
139			read(3, &challenge[c], 1) == 1) {
140			if (challenge[c] == '\0' && ++mode == 2)
141			break;
142			if (challenge[c] == '\0' && mode == 1)
143			pp = challenge + c + 1;
144			}
145			if (mode < 2) {
146			syslog(LOG_ERR, "protocol error on back channel");
147			exit(1);
148			}
149			} else {
150			(void)sigprocmask(SIG_BLOCK, &blockset, NULL);
151			tokenchallenge(username, challenge, sizeof(challenge),
152			tt->proper);
153			(void)sigprocmask(SIG_UNBLOCK, &blockset, NULL);
154			if (mode == 1) {
155			fprintf(back, BI_VALUE " challenge %s\n",
156			auth_mkvalue(challenge));
157			fprintf(back, BI_CHALLENGE "\n");
158			exit(0);
159			}
160
161			pp = readpassphrase(challenge, response, sizeof(response), 0);
162			if (pp == NULL)
163			exit(1);
164			if (*pp == '\0') {
165			char buf[64];
166			snprintf(buf, sizeof(buf), "%s Response [echo on]: ",
167			tt->proper);
168			pp = readpassphrase(buf, response, sizeof(response),
169			RPP_ECHO_ON);
170			if (pp == NULL)
171			exit(1);
172			}
173			}
174
175			(void)sigprocmask(SIG_BLOCK, &blockset, NULL);
176			if (tokenverify(username, challenge, pp) == 0) {
177			fprintf(back, BI_AUTH "\n");
178
179			if ((instance = strchr(username, '.'))) {
180			*instance++ = 0;
181			if (strcmp(instance, "root") == 0)
182			fprintf(back, BI_ROOTOKAY "\n");
183			}
184			fprintf(back, BI_SECURE "\n");
185			exit(0);
186			}
187
188			fprintf(back, BI_REJECT "\n");
189			exit(1);
190			}