[gssapi-openssh.git] / openssh / ssh-add.c

/*
 * Author: Tatu Ylonen <ylo@cs.hut.fi>
 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
 *                    All rights reserved
 * Adds an identity to the authentication server, or removes an identity.
 *
 * As far as I am concerned, the code I have written for this software
 * can be used freely for any purpose.  Any derived versions of this
 * software must be clearly marked as such, and if the derived work is
 * incompatible with the protocol description in the RFC file, it must be
 * called by a name other than "ssh" or "Secure Shell".
 *
 * SSH2 implementation,
 * Copyright (c) 2000, 2001 Markus Friedl.  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 ``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 "includes.h"
RCSID("$OpenBSD: ssh-add.c,v 1.68 2003/06/16 10:22:45 markus Exp $");

#include <openssl/evp.h>

#include "ssh.h"
#include "rsa.h"
#include "log.h"
#include "xmalloc.h"
#include "key.h"
#include "authfd.h"
#include "authfile.h"
#include "pathnames.h"
#include "readpass.h"
#include "misc.h"

#ifdef HAVE___PROGNAME
extern char *__progname;
#else
char *__progname;
#endif

/* argv0 */
extern char *__progname;

/* Default files to add */
static char *default_files[] = {
	_PATH_SSH_CLIENT_ID_RSA,
	_PATH_SSH_CLIENT_ID_DSA,
	_PATH_SSH_CLIENT_IDENTITY,
	NULL
};

/* Default lifetime (0 == forever) */
static int lifetime = 0;

/* User has to confirm key use */
static int confirm = 0;

/* we keep a cache of one passphrases */
static char *pass = NULL;
static void
clear_pass(void)
{
	if (pass) {
		memset(pass, 0, strlen(pass));
		xfree(pass);
		pass = NULL;
	}
}

static int
delete_file(AuthenticationConnection *ac, const char *filename)
{
	Key *public;
	char *comment = NULL;
	int ret = -1;

	public = key_load_public(filename, &comment);
	if (public == NULL) {
		printf("Bad key file %s\n", filename);
		return -1;
	}
	if (ssh_remove_identity(ac, public)) {
		fprintf(stderr, "Identity removed: %s (%s)\n", filename, comment);
		ret = 0;
	} else
		fprintf(stderr, "Could not remove identity: %s\n", filename);

	key_free(public);
	xfree(comment);

	return ret;
}

/* Send a request to remove all identities. */
static int
delete_all(AuthenticationConnection *ac)
{
	int ret = -1;

	if (ssh_remove_all_identities(ac, 1))
		ret = 0;
	/* ignore error-code for ssh2 */
	ssh_remove_all_identities(ac, 2);

	if (ret == 0)
		fprintf(stderr, "All identities removed.\n");
	else
		fprintf(stderr, "Failed to remove all identities.\n");

	return ret;
}

static int
add_file(AuthenticationConnection *ac, const char *filename)
{
	struct stat st;
	Key *private;
	char *comment = NULL;
	char msg[1024];
	int ret = -1;

	if (stat(filename, &st) < 0) {
		perror(filename);
		return -1;
	}
	/* At first, try empty passphrase */
	private = key_load_private(filename, "", &comment);
	if (comment == NULL)
		comment = xstrdup(filename);
	/* try last */
	if (private == NULL && pass != NULL)
		private = key_load_private(filename, pass, NULL);
	if (private == NULL) {
		/* clear passphrase since it did not work */
		clear_pass();
		snprintf(msg, sizeof msg, "Enter passphrase for %.200s: ",
		   comment);
		for (;;) {
			pass = read_passphrase(msg, RP_ALLOW_STDIN);
			if (strcmp(pass, "") == 0) {
				clear_pass();
				xfree(comment);
				return -1;
			}
			private = key_load_private(filename, pass, &comment);
			if (private != NULL)
				break;
			clear_pass();
			snprintf(msg, sizeof msg,
			    "Bad passphrase, try again for %.200s: ", comment);
		}
	}

 	if (ssh_add_identity_constrained(ac, private, comment, lifetime,
 	    confirm)) {
		fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
		ret = 0;
		if (lifetime != 0)
			fprintf(stderr,
			    "Lifetime set to %d seconds\n", lifetime);
 		if (confirm != 0)
			fprintf(stderr,
			    "The user has to confirm each use of the key\n");
	} else if (ssh_add_identity(ac, private, comment)) {
		fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
		ret = 0;
	} else {
		fprintf(stderr, "Could not add identity: %s\n", filename);
	}

	xfree(comment);
	key_free(private);

	return ret;
}

static int
update_card(AuthenticationConnection *ac, int add, const char *id)
{
	char *pin;
	int ret = -1;

	pin = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN);
	if (pin == NULL)
		return -1;

	if (ssh_update_card(ac, add, id, pin, lifetime, confirm)) {
		fprintf(stderr, "Card %s: %s\n",
		    add ? "added" : "removed", id);
		ret = 0;
	} else {
		fprintf(stderr, "Could not %s card: %s\n",
		    add ? "add" : "remove", id);
		ret = -1;
	}
	xfree(pin);
	return ret;
}

static int
list_identities(AuthenticationConnection *ac, int do_fp)
{
	Key *key;
	char *comment, *fp;
	int had_identities = 0;
	int version;

	for (version = 1; version <= 2; version++) {
		for (key = ssh_get_first_identity(ac, &comment, version);
		    key != NULL;
		    key = ssh_get_next_identity(ac, &comment, version)) {
			had_identities = 1;
			if (do_fp) {
				fp = key_fingerprint(key, SSH_FP_MD5,
				    SSH_FP_HEX);
				printf("%d %s %s (%s)\n",
				    key_size(key), fp, comment, key_type(key));
				xfree(fp);
			} else {
				if (!key_write(key, stdout))
					fprintf(stderr, "key_write failed");
				fprintf(stdout, " %s\n", comment);
			}
			key_free(key);
			xfree(comment);
		}
	}
	if (!had_identities) {
		printf("The agent has no identities.\n");
		return -1;
	}
	return 0;
}

static int
lock_agent(AuthenticationConnection *ac, int lock)
{
	char prompt[100], *p1, *p2;
	int passok = 1, ret = -1;

	strlcpy(prompt, "Enter lock password: ", sizeof(prompt));
	p1 = read_passphrase(prompt, RP_ALLOW_STDIN);
	if (lock) {
		strlcpy(prompt, "Again: ", sizeof prompt);
		p2 = read_passphrase(prompt, RP_ALLOW_STDIN);
		if (strcmp(p1, p2) != 0) {
			fprintf(stderr, "Passwords do not match.\n");
			passok = 0;
		}
		memset(p2, 0, strlen(p2));
		xfree(p2);
	}
	if (passok && ssh_lock_agent(ac, lock, p1)) {
		fprintf(stderr, "Agent %slocked.\n", lock ? "" : "un");
		ret = 0;
	} else
		fprintf(stderr, "Failed to %slock agent.\n", lock ? "" : "un");
	memset(p1, 0, strlen(p1));
	xfree(p1);
	return (ret);
}

static int
do_file(AuthenticationConnection *ac, int deleting, char *file)
{
	if (deleting) {
		if (delete_file(ac, file) == -1)
			return -1;
	} else {
		if (add_file(ac, file) == -1)
			return -1;
	}
	return 0;
}

static void
usage(void)
{
	fprintf(stderr, "Usage: %s [options]\n", __progname);
	fprintf(stderr, "Options:\n");
	fprintf(stderr, "  -l          List fingerprints of all identities.\n");
	fprintf(stderr, "  -L          List public key parameters of all identities.\n");
	fprintf(stderr, "  -d          Delete identity.\n");
	fprintf(stderr, "  -D          Delete all identities.\n");
	fprintf(stderr, "  -x          Lock agent.\n");
	fprintf(stderr, "  -X          Unlock agent.\n");
	fprintf(stderr, "  -t life     Set lifetime (in seconds) when adding identities.\n");
	fprintf(stderr, "  -c          Require confirmation to sign using identities\n");
#ifdef SMARTCARD
	fprintf(stderr, "  -s reader   Add key in smartcard reader.\n");
	fprintf(stderr, "  -e reader   Remove key in smartcard reader.\n");
#endif
}

int
main(int argc, char **argv)
{
	extern char *optarg;
	extern int optind;
	AuthenticationConnection *ac = NULL;
	char *sc_reader_id = NULL;
	int i, ch, deleting = 0, ret = 0;

	__progname = ssh_get_progname(argv[0]);
	init_rng();
	seed_rng();

	SSLeay_add_all_algorithms();

	/* At first, get a connection to the authentication agent. */
	ac = ssh_get_authentication_connection();
	if (ac == NULL) {
		fprintf(stderr, "Could not open a connection to your authentication agent.\n");
		exit(2);
	}
	while ((ch = getopt(argc, argv, "lLcdDxXe:s:t:")) != -1) {
		switch (ch) {
		case 'l':
		case 'L':
			if (list_identities(ac, ch == 'l' ? 1 : 0) == -1)
				ret = 1;
			goto done;
			break;
		case 'x':
		case 'X':
			if (lock_agent(ac, ch == 'x' ? 1 : 0) == -1)
				ret = 1;
			goto done;
			break;
		case 'c':
			confirm = 1;
			break;
		case 'd':
			deleting = 1;
			break;
		case 'D':
			if (delete_all(ac) == -1)
				ret = 1;
			goto done;
			break;
		case 's':
			sc_reader_id = optarg;
			break;
		case 'e':
			deleting = 1;
			sc_reader_id = optarg;
			break;
		case 't':
			if ((lifetime = convtime(optarg)) == -1) {
				fprintf(stderr, "Invalid lifetime\n");
				ret = 1;
				goto done;
			}
			break;
		default:
			usage();
			ret = 1;
			goto done;
		}
	}
	argc -= optind;
	argv += optind;
	if (sc_reader_id != NULL) {
		if (update_card(ac, !deleting, sc_reader_id) == -1)
			ret = 1;
		goto done;
	}
	if (argc == 0) {
		char buf[MAXPATHLEN];
		struct passwd *pw;
		struct stat st;
		int count = 0;

		if ((pw = getpwuid(getuid())) == NULL) {
			fprintf(stderr, "No user found with uid %u\n",
			    (u_int)getuid());
			ret = 1;
			goto done;
		}

		for(i = 0; default_files[i]; i++) {
			snprintf(buf, sizeof(buf), "%s/%s", pw->pw_dir,
			    default_files[i]);
			if (stat(buf, &st) < 0)
				continue;
			if (do_file(ac, deleting, buf) == -1)
				ret = 1;
			else
				count++;
		}
		if (count == 0)
			ret = 1;
	} else {
		for(i = 0; i < argc; i++) {
			if (do_file(ac, deleting, argv[i]) == -1)
				ret = 1;
		}
	}
	clear_pass();

done:
	ssh_close_authentication_connection(ac);
	return ret;
}
Commit	Line	Data
3c0ef626	1	/*
	2	* Author: Tatu Ylonen <ylo@cs.hut.fi>
	3	* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
	4	* All rights reserved
	5	* Adds an identity to the authentication server, or removes an identity.
	6	*
	7	* As far as I am concerned, the code I have written for this software
	8	* can be used freely for any purpose. Any derived versions of this
	9	* software must be clearly marked as such, and if the derived work is
	10	* incompatible with the protocol description in the RFC file, it must be
	11	* called by a name other than "ssh" or "Secure Shell".
	12	*
	13	* SSH2 implementation,
	14	* Copyright (c) 2000, 2001 Markus Friedl. All rights reserved.
	15	*
	16	* Redistribution and use in source and binary forms, with or without
	17	* modification, are permitted provided that the following conditions
	18	* are met:
	19	* 1. Redistributions of source code must retain the above copyright
	20	* notice, this list of conditions and the following disclaimer.
	21	* 2. Redistributions in binary form must reproduce the above copyright
	22	* notice, this list of conditions and the following disclaimer in the
	23	* documentation and/or other materials provided with the distribution.
	24	*
	25	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	26	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	27	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
	28	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
	29	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
	30	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	31	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	32	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	33	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	34	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	35	*/
	36
	37	#include "includes.h"
0fff78ff	38	RCSID("$OpenBSD: ssh-add.c,v 1.68 2003/06/16 10:22:45 markus Exp $");
3c0ef626	39
	40	#include <openssl/evp.h>
	41
	42	#include "ssh.h"
	43	#include "rsa.h"
	44	#include "log.h"
	45	#include "xmalloc.h"
	46	#include "key.h"
	47	#include "authfd.h"
	48	#include "authfile.h"
	49	#include "pathnames.h"
	50	#include "readpass.h"
f5799ae1	51	#include "misc.h"
3c0ef626	52
	53	#ifdef HAVE___PROGNAME
	54	extern char *__progname;
	55	#else
	56	char *__progname;
	57	#endif
	58
	59	/* argv0 */
	60	extern char *__progname;
	61
e9a17296	62	/* Default files to add */
	63	static char *default_files[] = {
	64	_PATH_SSH_CLIENT_ID_RSA,
	65	_PATH_SSH_CLIENT_ID_DSA,
700318f3	66	_PATH_SSH_CLIENT_IDENTITY,
e9a17296	67	NULL
	68	};
	69
f5799ae1	70	/* Default lifetime (0 == forever) */
f5799ae1	71	static int lifetime = 0;
e9a17296	72
6a9b3198	73	/* User has to confirm key use */
	74	static int confirm = 0;
	75
3c0ef626	76	/* we keep a cache of one passphrases */
	77	static char *pass = NULL;
	78	static void
	79	clear_pass(void)
	80	{
	81	if (pass) {
	82	memset(pass, 0, strlen(pass));
	83	xfree(pass);
	84	pass = NULL;
	85	}
	86	}
	87
	88	static int
	89	delete_file(AuthenticationConnection ac, const char filename)
	90	{
	91	Key *public;
	92	char *comment = NULL;
	93	int ret = -1;
	94
	95	public = key_load_public(filename, &comment);
	96	if (public == NULL) {
	97	printf("Bad key file %s\n", filename);
	98	return -1;
	99	}
	100	if (ssh_remove_identity(ac, public)) {
	101	fprintf(stderr, "Identity removed: %s (%s)\n", filename, comment);
	102	ret = 0;
	103	} else
	104	fprintf(stderr, "Could not remove identity: %s\n", filename);
	105
	106	key_free(public);
	107	xfree(comment);
e9a17296	108
3c0ef626	109	return ret;
	110	}
	111
	112	/* Send a request to remove all identities. */
	113	static int
	114	delete_all(AuthenticationConnection *ac)
	115	{
	116	int ret = -1;
	117
	118	if (ssh_remove_all_identities(ac, 1))
	119	ret = 0;
	120	/* ignore error-code for ssh2 */
	121	ssh_remove_all_identities(ac, 2);
	122
	123	if (ret == 0)
	124	fprintf(stderr, "All identities removed.\n");
	125	else
	126	fprintf(stderr, "Failed to remove all identities.\n");
	127
	128	return ret;
	129	}
	130
	131	static int
	132	add_file(AuthenticationConnection ac, const char filename)
	133	{
	134	struct stat st;
	135	Key *private;
	136	char *comment = NULL;
	137	char msg[1024];
	138	int ret = -1;
	139
	140	if (stat(filename, &st) < 0) {
	141	perror(filename);
	142	return -1;
	143	}
	144	/* At first, try empty passphrase */
	145	private = key_load_private(filename, "", &comment);
	146	if (comment == NULL)
	147	comment = xstrdup(filename);
	148	/* try last */
	149	if (private == NULL && pass != NULL)
	150	private = key_load_private(filename, pass, NULL);
	151	if (private == NULL) {
	152	/* clear passphrase since it did not work */
	153	clear_pass();
	154	snprintf(msg, sizeof msg, "Enter passphrase for %.200s: ",
	155	comment);
	156	for (;;) {
	157	pass = read_passphrase(msg, RP_ALLOW_STDIN);
	158	if (strcmp(pass, "") == 0) {
	159	clear_pass();
	160	xfree(comment);
	161	return -1;
	162	}
	163	private = key_load_private(filename, pass, &comment);
	164	if (private != NULL)
	165	break;
	166	clear_pass();
0fff78ff	167	snprintf(msg, sizeof msg,
0fff78ff	168	"Bad passphrase, try again for %.200s: ", comment);
3c0ef626	169	}
3c0ef626	170	}
f5799ae1	171
6a9b3198	172	if (ssh_add_identity_constrained(ac, private, comment, lifetime,
6a9b3198	173	confirm)) {
3c0ef626	174	fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
3c0ef626	175	ret = 0;
f5799ae1	176	if (lifetime != 0)
6a9b3198	177	fprintf(stderr,
f5799ae1	178	"Lifetime set to %d seconds\n", lifetime);
6a9b3198	179	if (confirm != 0)
	180	fprintf(stderr,
	181	"The user has to confirm each use of the key\n");
f5799ae1	182	} else if (ssh_add_identity(ac, private, comment)) {
	183	fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
	184	ret = 0;
	185	} else {
3c0ef626	186	fprintf(stderr, "Could not add identity: %s\n", filename);
f5799ae1	187	}
3c0ef626	188
	189	xfree(comment);
	190	key_free(private);
e9a17296	191
3c0ef626	192	return ret;
	193	}
	194
	195	static int
	196	update_card(AuthenticationConnection ac, int add, const char id)
	197	{
700318f3	198	char *pin;
6a9b3198	199	int ret = -1;
700318f3	200
	201	pin = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN);
	202	if (pin == NULL)
	203	return -1;
	204
0fff78ff	205	if (ssh_update_card(ac, add, id, pin, lifetime, confirm)) {
3c0ef626	206	fprintf(stderr, "Card %s: %s\n",
e9a17296	207	add ? "added" : "removed", id);
6a9b3198	208	ret = 0;
3c0ef626	209	} else {
3c0ef626	210	fprintf(stderr, "Could not %s card: %s\n",
e9a17296	211	add ? "add" : "remove", id);
6a9b3198	212	ret = -1;
3c0ef626	213	}
6a9b3198	214	xfree(pin);
6a9b3198	215	return ret;
3c0ef626	216	}
3c0ef626	217
e9a17296	218	static int
3c0ef626	219	list_identities(AuthenticationConnection *ac, int do_fp)
	220	{
	221	Key *key;
	222	char comment, fp;
	223	int had_identities = 0;
	224	int version;
	225
	226	for (version = 1; version <= 2; version++) {
	227	for (key = ssh_get_first_identity(ac, &comment, version);
e9a17296	228	key != NULL;
e9a17296	229	key = ssh_get_next_identity(ac, &comment, version)) {
3c0ef626	230	had_identities = 1;
	231	if (do_fp) {
	232	fp = key_fingerprint(key, SSH_FP_MD5,
	233	SSH_FP_HEX);
	234	printf("%d %s %s (%s)\n",
	235	key_size(key), fp, comment, key_type(key));
	236	xfree(fp);
	237	} else {
	238	if (!key_write(key, stdout))
	239	fprintf(stderr, "key_write failed");
	240	fprintf(stdout, " %s\n", comment);
	241	}
	242	key_free(key);
	243	xfree(comment);
	244	}
	245	}
e9a17296	246	if (!had_identities) {
3c0ef626	247	printf("The agent has no identities.\n");
e9a17296	248	return -1;
	249	}
	250	return 0;
	251	}
	252
f5799ae1	253	static int
	254	lock_agent(AuthenticationConnection *ac, int lock)
	255	{
	256	char prompt[100], p1, p2;
	257	int passok = 1, ret = -1;
	258
	259	strlcpy(prompt, "Enter lock password: ", sizeof(prompt));
	260	p1 = read_passphrase(prompt, RP_ALLOW_STDIN);
	261	if (lock) {
	262	strlcpy(prompt, "Again: ", sizeof prompt);
	263	p2 = read_passphrase(prompt, RP_ALLOW_STDIN);
	264	if (strcmp(p1, p2) != 0) {
	265	fprintf(stderr, "Passwords do not match.\n");
	266	passok = 0;
	267	}
	268	memset(p2, 0, strlen(p2));
	269	xfree(p2);
	270	}
	271	if (passok && ssh_lock_agent(ac, lock, p1)) {
	272	fprintf(stderr, "Agent %slocked.\n", lock ? "" : "un");
	273	ret = 0;
	274	} else
	275	fprintf(stderr, "Failed to %slock agent.\n", lock ? "" : "un");
	276	memset(p1, 0, strlen(p1));
	277	xfree(p1);
41b2f314	278	return (ret);
f5799ae1	279	}
f5799ae1	280
e9a17296	281	static int
	282	do_file(AuthenticationConnection ac, int deleting, char file)
	283	{
	284	if (deleting) {
	285	if (delete_file(ac, file) == -1)
	286	return -1;
	287	} else {
	288	if (add_file(ac, file) == -1)
	289	return -1;
	290	}
	291	return 0;
3c0ef626	292	}
	293
	294	static void
	295	usage(void)
	296	{
	297	fprintf(stderr, "Usage: %s [options]\n", __progname);
	298	fprintf(stderr, "Options:\n");
	299	fprintf(stderr, " -l List fingerprints of all identities.\n");
	300	fprintf(stderr, " -L List public key parameters of all identities.\n");
	301	fprintf(stderr, " -d Delete identity.\n");
	302	fprintf(stderr, " -D Delete all identities.\n");
f5799ae1	303	fprintf(stderr, " -x Lock agent.\n");
41b2f314	304	fprintf(stderr, " -X Unlock agent.\n");
f5799ae1	305	fprintf(stderr, " -t life Set lifetime (in seconds) when adding identities.\n");
6a9b3198	306	fprintf(stderr, " -c Require confirmation to sign using identities\n");
3c0ef626	307	#ifdef SMARTCARD
	308	fprintf(stderr, " -s reader Add key in smartcard reader.\n");
	309	fprintf(stderr, " -e reader Remove key in smartcard reader.\n");
	310	#endif
	311	}
	312
	313	int
	314	main(int argc, char **argv)
	315	{
	316	extern char *optarg;
	317	extern int optind;
	318	AuthenticationConnection *ac = NULL;
3c0ef626	319	char *sc_reader_id = NULL;
	320	int i, ch, deleting = 0, ret = 0;
	321
0fff78ff	322	__progname = ssh_get_progname(argv[0]);
3c0ef626	323	init_rng();
	324	seed_rng();
	325
	326	SSLeay_add_all_algorithms();
	327
	328	/* At first, get a connection to the authentication agent. */
	329	ac = ssh_get_authentication_connection();
	330	if (ac == NULL) {
	331	fprintf(stderr, "Could not open a connection to your authentication agent.\n");
e9a17296	332	exit(2);
3c0ef626	333	}
6a9b3198	334	while ((ch = getopt(argc, argv, "lLcdDxXe:s:t:")) != -1) {
3c0ef626	335	switch (ch) {
	336	case 'l':
	337	case 'L':
e9a17296	338	if (list_identities(ac, ch == 'l' ? 1 : 0) == -1)
e9a17296	339	ret = 1;
3c0ef626	340	goto done;
3c0ef626	341	break;
f5799ae1	342	case 'x':
	343	case 'X':
	344	if (lock_agent(ac, ch == 'x' ? 1 : 0) == -1)
	345	ret = 1;
	346	goto done;
	347	break;
6a9b3198	348	case 'c':
	349	confirm = 1;
	350	break;
3c0ef626	351	case 'd':
	352	deleting = 1;
	353	break;
	354	case 'D':
	355	if (delete_all(ac) == -1)
	356	ret = 1;
	357	goto done;
	358	break;
	359	case 's':
	360	sc_reader_id = optarg;
	361	break;
	362	case 'e':
e9a17296	363	deleting = 1;
3c0ef626	364	sc_reader_id = optarg;
3c0ef626	365	break;
f5799ae1	366	case 't':
	367	if ((lifetime = convtime(optarg)) == -1) {
	368	fprintf(stderr, "Invalid lifetime\n");
	369	ret = 1;
	370	goto done;
	371	}
	372	break;
3c0ef626	373	default:
	374	usage();
	375	ret = 1;
	376	goto done;
	377	}
	378	}
	379	argc -= optind;
	380	argv += optind;
	381	if (sc_reader_id != NULL) {
	382	if (update_card(ac, !deleting, sc_reader_id) == -1)
	383	ret = 1;
	384	goto done;
	385	}
	386	if (argc == 0) {
e9a17296	387	char buf[MAXPATHLEN];
e9a17296	388	struct passwd *pw;
700318f3	389	struct stat st;
700318f3	390	int count = 0;
e9a17296	391
e9a17296	392	if ((pw = getpwuid(getuid())) == NULL) {
3c0ef626	393	fprintf(stderr, "No user found with uid %u\n",
	394	(u_int)getuid());
	395	ret = 1;
	396	goto done;
	397	}
e9a17296	398
e9a17296	399	for(i = 0; default_files[i]; i++) {
700318f3	400	snprintf(buf, sizeof(buf), "%s/%s", pw->pw_dir,
e9a17296	401	default_files[i]);
700318f3	402	if (stat(buf, &st) < 0)
700318f3	403	continue;
e9a17296	404	if (do_file(ac, deleting, buf) == -1)
3c0ef626	405	ret = 1;
700318f3	406	else
700318f3	407	count++;
3c0ef626	408	}
700318f3	409	if (count == 0)
700318f3	410	ret = 1;
3c0ef626	411	} else {
e9a17296	412	for(i = 0; i < argc; i++) {
	413	if (do_file(ac, deleting, argv[i]) == -1)
	414	ret = 1;
3c0ef626	415	}
	416	}
	417	clear_pass();
	418
	419	done:
	420	ssh_close_authentication_connection(ac);
	421	return ret;
	422	}