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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/encrypt/encrypt.c	Lines:	0	57	0.0 %
Date:	2016-12-06	Branches:	0	48	0.0 %


/*	$OpenBSD: encrypt.c,v 1.42 2015/10/10 18:14:20 doug Exp $	*/

/*
 * Copyright (c) 1996, Jason Downs.  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(S) ``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(S) 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 <ctype.h>
#include <err.h>
#include <errno.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <login_cap.h>
#include <limits.h>

/*
 * Very simple little program, for encrypting passwords from the command
 * line.  Useful for scripts and such.
 */

extern char *__progname;

void	usage(void);

#define DO_BLF		0

void
usage(void)
{

	(void)fprintf(stderr,
	    "usage: %s [-b rounds] [-c class] [-p | string]\n",
	    __progname);
	exit(1);
}

static void
print_passwd(char *string, int operation, char *extra)
{
	char buffer[_PASSWORD_LEN];
	const char *pref;
	char prefbuf[64];

	if (operation == DO_BLF) {
		if (snprintf(prefbuf, sizeof(prefbuf), "blowfish,%s", extra) >=
		    sizeof(prefbuf))
			errx(1, "pref too long");
		pref = prefbuf;
	} else {
		login_cap_t *lc;

		if ((lc = login_getclass(extra)) == NULL)
			errx(1, "unable to get login class `%s'",
			    extra ? (char *)extra : "default");
		pref = login_getcapstr(lc, "localcipher", NULL, NULL);
	}
	if (crypt_newhash(string, pref, buffer, sizeof(buffer)) != 0)
		err(1, "can't generate hash");

	fputs(buffer, stdout);
}

int
main(int argc, char **argv)
{
	int opt;
	int operation = -1;
	int prompt = 0;
	char *extra = NULL;	/* Store login class or number of rounds */
	const char *errstr;

	if (pledge("stdio rpath wpath tty cpath", NULL) == -1)
		err(1, "pledge");

	while ((opt = getopt(argc, argv, "pb:c:")) != -1) {
		switch (opt) {
		case 'p':
			prompt = 1;
			break;
		case 'b':                       /* Blowfish password hash */
			if (operation != -1)
				usage();
			operation = DO_BLF;
			if (strcmp(optarg, "a") != 0) {
				(void)strtonum(optarg, 4, 31, &errstr);
				if (errstr != NULL)
					errx(1, "rounds is %s: %s", errstr,
					    optarg);
			}
			extra = optarg;
			break;
		case 'c':                       /* user login class */
			extra = optarg;
			operation = -1;
			break;
		default:
			usage();
		}
	}

	if (((argc - optind) < 1)) {
		char line[BUFSIZ], *string;

		if (prompt) {
			if ((string = getpass("Enter string: ")) == NULL)
				err(1, "getpass");
			print_passwd(string, operation, extra);
			(void)fputc('\n', stdout);
		} else {
			size_t len;
			/* Encrypt stdin to stdout. */
			while (!feof(stdin) &&
			    (fgets(line, sizeof(line), stdin) != NULL)) {
			    	len = strlen(line);
				if (len == 0 || line[0] == '\n')
					continue;
				if (line[len - 1] == '\n')
                     			line[len - 1] = '\0';

				print_passwd(line, operation, extra);

				(void)fputc('\n', stdout);
			}
		}
	} else {
		char *string;

		/* can't combine -p with a supplied string */
		if (prompt)
			usage();

		/* Perhaps it isn't worth worrying about, but... */
		if ((string = strdup(argv[optind])) == NULL)
			err(1, NULL);
		/* Wipe the argument. */
		explicit_bzero(argv[optind], strlen(argv[optind]));

		print_passwd(string, operation, extra);

		(void)fputc('\n', stdout);

		/* Wipe our copy, before we free it. */
		explicit_bzero(string, strlen(string));
		free(string);
	}
	exit(0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: encrypt.c,v 1.42 2015/10/10 18:14:20 doug Exp $ */
2
3			/*
4			* Copyright (c) 1996, Jason Downs. 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			*
15			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS
16			* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17			* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18			* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
19			* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20			* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21			* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22			* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25			* SUCH DAMAGE.
26			*/
27
28			#include <sys/types.h>
29			#include <ctype.h>
30			#include <err.h>
31			#include <errno.h>
32			#include <pwd.h>
33			#include <stdio.h>
34			#include <stdlib.h>
35			#include <string.h>
36			#include <unistd.h>
37			#include <login_cap.h>
38			#include <limits.h>
39
40			/*
41			* Very simple little program, for encrypting passwords from the command
42			* line. Useful for scripts and such.
43			*/
44
45			extern char *__progname;
46
47			void usage(void);
48
49			#define DO_BLF 0
50
51			void
52			usage(void)
53			{
54
55			(void)fprintf(stderr,
56			"usage: %s [-b rounds] [-c class] [-p \| string]\n",
57			__progname);
58			exit(1);
59			}
60
61			static void
62			print_passwd(char string, int operation, char extra)
63			{
64			char buffer[_PASSWORD_LEN];
65			const char *pref;
66			char prefbuf[64];
67
68			if (operation == DO_BLF) {
69			if (snprintf(prefbuf, sizeof(prefbuf), "blowfish,%s", extra) >=
70			sizeof(prefbuf))
71			errx(1, "pref too long");
72			pref = prefbuf;
73			} else {
74			login_cap_t *lc;
75
76			if ((lc = login_getclass(extra)) == NULL)
77			errx(1, "unable to get login class `%s'",
78			extra ? (char *)extra : "default");
79			pref = login_getcapstr(lc, "localcipher", NULL, NULL);
80			}
81			if (crypt_newhash(string, pref, buffer, sizeof(buffer)) != 0)
82			err(1, "can't generate hash");
83
84			fputs(buffer, stdout);
85			}
86
87			int
88			main(int argc, char **argv)
89			{
90			int opt;
91			int operation = -1;
92			int prompt = 0;
93			char extra = NULL; / Store login class or number of rounds */
94			const char *errstr;
95
96			if (pledge("stdio rpath wpath tty cpath", NULL) == -1)
97			err(1, "pledge");
98
99			while ((opt = getopt(argc, argv, "pb:c:")) != -1) {
100			switch (opt) {
101			case 'p':
102			prompt = 1;
103			break;
104			case 'b': /* Blowfish password hash */
105			if (operation != -1)
106			usage();
107			operation = DO_BLF;
108			if (strcmp(optarg, "a") != 0) {
109			(void)strtonum(optarg, 4, 31, &errstr);
110			if (errstr != NULL)
111			errx(1, "rounds is %s: %s", errstr,
112			optarg);
113			}
114			extra = optarg;
115			break;
116			case 'c': /* user login class */
117			extra = optarg;
118			operation = -1;
119			break;
120			default:
121			usage();
122			}
123			}
124
125			if (((argc - optind) < 1)) {
126			char line[BUFSIZ], *string;
127
128			if (prompt) {
129			if ((string = getpass("Enter string: ")) == NULL)
130			err(1, "getpass");
131			print_passwd(string, operation, extra);
132			(void)fputc('\n', stdout);
133			} else {
134			size_t len;
135			/* Encrypt stdin to stdout. */
136			while (!feof(stdin) &&
137			(fgets(line, sizeof(line), stdin) != NULL)) {
138			len = strlen(line);
139			if (len == 0 \|\| line[0] == '\n')
140			continue;
141			if (line[len - 1] == '\n')
142			line[len - 1] = '\0';
143
144			print_passwd(line, operation, extra);
145
146			(void)fputc('\n', stdout);
147			}
148			}
149			} else {
150			char *string;
151
152			/* can't combine -p with a supplied string */
153			if (prompt)
154			usage();
155
156			/* Perhaps it isn't worth worrying about, but... */
157			if ((string = strdup(argv[optind])) == NULL)
158			err(1, NULL);
159			/* Wipe the argument. */
160			explicit_bzero(argv[optind], strlen(argv[optind]));
161
162			print_passwd(string, operation, extra);
163
164			(void)fputc('\n', stdout);
165
166			/* Wipe our copy, before we free it. */
167			explicit_bzero(string, strlen(string));
168			free(string);
169			}
170			exit(0);
171			}