[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 1.72 2005/07/17 07:17:55 djm 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 "misc.h"

/* 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_pathnames();
	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"
34fee935	38	RCSID("$OpenBSD: ssh-add.c,v 1.72 2005/07/17 07:17:55 djm 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"
ff2d7a98	50	#include "misc.h"
3c0ef626	51
3c0ef626	52	/* argv0 */
	53	extern char *__progname;
	54
e9a17296	55	/* Default files to add */
	56	static char *default_files[] = {
	57	_PATH_SSH_CLIENT_ID_RSA,
	58	_PATH_SSH_CLIENT_ID_DSA,
2980ea68	59	_PATH_SSH_CLIENT_IDENTITY,
e9a17296	60	NULL
	61	};
	62
ff2d7a98	63	/* Default lifetime (0 == forever) */
ff2d7a98	64	static int lifetime = 0;
e9a17296	65
1c14df9e	66	/* User has to confirm key use */
	67	static int confirm = 0;
	68
3c0ef626	69	/* we keep a cache of one passphrases */
	70	static char *pass = NULL;
	71	static void
	72	clear_pass(void)
	73	{
	74	if (pass) {
	75	memset(pass, 0, strlen(pass));
	76	xfree(pass);
	77	pass = NULL;
	78	}
	79	}
	80
	81	static int
	82	delete_file(AuthenticationConnection ac, const char filename)
	83	{
	84	Key *public;
	85	char *comment = NULL;
	86	int ret = -1;
	87
	88	public = key_load_public(filename, &comment);
	89	if (public == NULL) {
	90	printf("Bad key file %s\n", filename);
	91	return -1;
	92	}
	93	if (ssh_remove_identity(ac, public)) {
	94	fprintf(stderr, "Identity removed: %s (%s)\n", filename, comment);
	95	ret = 0;
	96	} else
	97	fprintf(stderr, "Could not remove identity: %s\n", filename);
	98
	99	key_free(public);
	100	xfree(comment);
e9a17296	101
3c0ef626	102	return ret;
	103	}
	104
	105	/* Send a request to remove all identities. */
	106	static int
	107	delete_all(AuthenticationConnection *ac)
	108	{
	109	int ret = -1;
	110
	111	if (ssh_remove_all_identities(ac, 1))
	112	ret = 0;
	113	/* ignore error-code for ssh2 */
	114	ssh_remove_all_identities(ac, 2);
	115
	116	if (ret == 0)
	117	fprintf(stderr, "All identities removed.\n");
	118	else
	119	fprintf(stderr, "Failed to remove all identities.\n");
	120
	121	return ret;
	122	}
	123
	124	static int
	125	add_file(AuthenticationConnection ac, const char filename)
	126	{
	127	struct stat st;
	128	Key *private;
	129	char *comment = NULL;
	130	char msg[1024];
	131	int ret = -1;
	132
	133	if (stat(filename, &st) < 0) {
	134	perror(filename);
	135	return -1;
	136	}
	137	/* At first, try empty passphrase */
	138	private = key_load_private(filename, "", &comment);
	139	if (comment == NULL)
	140	comment = xstrdup(filename);
	141	/* try last */
	142	if (private == NULL && pass != NULL)
	143	private = key_load_private(filename, pass, NULL);
	144	if (private == NULL) {
	145	/* clear passphrase since it did not work */
	146	clear_pass();
	147	snprintf(msg, sizeof msg, "Enter passphrase for %.200s: ",
34fee935	148	comment);
3c0ef626	149	for (;;) {
	150	pass = read_passphrase(msg, RP_ALLOW_STDIN);
	151	if (strcmp(pass, "") == 0) {
	152	clear_pass();
	153	xfree(comment);
	154	return -1;
	155	}
	156	private = key_load_private(filename, pass, &comment);
	157	if (private != NULL)
	158	break;
	159	clear_pass();
70791e56	160	snprintf(msg, sizeof msg,
70791e56	161	"Bad passphrase, try again for %.200s: ", comment);
3c0ef626	162	}
3c0ef626	163	}
ff2d7a98	164
416fd2a8	165	if (ssh_add_identity_constrained(ac, private, comment, lifetime,
416fd2a8	166	confirm)) {
3c0ef626	167	fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
3c0ef626	168	ret = 0;
ff2d7a98	169	if (lifetime != 0)
1c14df9e	170	fprintf(stderr,
ff2d7a98	171	"Lifetime set to %d seconds\n", lifetime);
416fd2a8	172	if (confirm != 0)
1c14df9e	173	fprintf(stderr,
1c14df9e	174	"The user has to confirm each use of the key\n");
ff2d7a98	175	} else if (ssh_add_identity(ac, private, comment)) {
	176	fprintf(stderr, "Identity added: %s (%s)\n", filename, comment);
	177	ret = 0;
	178	} else {
3c0ef626	179	fprintf(stderr, "Could not add identity: %s\n", filename);
ff2d7a98	180	}
3c0ef626	181
	182	xfree(comment);
	183	key_free(private);
e9a17296	184
3c0ef626	185	return ret;
	186	}
	187
	188	static int
	189	update_card(AuthenticationConnection ac, int add, const char id)
	190	{
2980ea68	191	char *pin;
1c14df9e	192	int ret = -1;
2980ea68	193
	194	pin = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN);
	195	if (pin == NULL)
	196	return -1;
	197
70791e56	198	if (ssh_update_card(ac, add, id, pin, lifetime, confirm)) {
3c0ef626	199	fprintf(stderr, "Card %s: %s\n",
e9a17296	200	add ? "added" : "removed", id);
1c14df9e	201	ret = 0;
3c0ef626	202	} else {
3c0ef626	203	fprintf(stderr, "Could not %s card: %s\n",
e9a17296	204	add ? "add" : "remove", id);
1c14df9e	205	ret = -1;
3c0ef626	206	}
1c14df9e	207	xfree(pin);
1c14df9e	208	return ret;
3c0ef626	209	}
3c0ef626	210
e9a17296	211	static int
3c0ef626	212	list_identities(AuthenticationConnection *ac, int do_fp)
	213	{
	214	Key *key;
	215	char comment, fp;
	216	int had_identities = 0;
	217	int version;
	218
	219	for (version = 1; version <= 2; version++) {
	220	for (key = ssh_get_first_identity(ac, &comment, version);
e9a17296	221	key != NULL;
e9a17296	222	key = ssh_get_next_identity(ac, &comment, version)) {
3c0ef626	223	had_identities = 1;
	224	if (do_fp) {
	225	fp = key_fingerprint(key, SSH_FP_MD5,
	226	SSH_FP_HEX);
	227	printf("%d %s %s (%s)\n",
	228	key_size(key), fp, comment, key_type(key));
	229	xfree(fp);
	230	} else {
	231	if (!key_write(key, stdout))
	232	fprintf(stderr, "key_write failed");
	233	fprintf(stdout, " %s\n", comment);
	234	}
	235	key_free(key);
	236	xfree(comment);
	237	}
	238	}
e9a17296	239	if (!had_identities) {
3c0ef626	240	printf("The agent has no identities.\n");
e9a17296	241	return -1;
	242	}
	243	return 0;
	244	}
	245
ff2d7a98	246	static int
	247	lock_agent(AuthenticationConnection *ac, int lock)
	248	{
	249	char prompt[100], p1, p2;
	250	int passok = 1, ret = -1;
	251
	252	strlcpy(prompt, "Enter lock password: ", sizeof(prompt));
	253	p1 = read_passphrase(prompt, RP_ALLOW_STDIN);
	254	if (lock) {
	255	strlcpy(prompt, "Again: ", sizeof prompt);
	256	p2 = read_passphrase(prompt, RP_ALLOW_STDIN);
	257	if (strcmp(p1, p2) != 0) {
	258	fprintf(stderr, "Passwords do not match.\n");
	259	passok = 0;
	260	}
	261	memset(p2, 0, strlen(p2));
	262	xfree(p2);
	263	}
	264	if (passok && ssh_lock_agent(ac, lock, p1)) {
	265	fprintf(stderr, "Agent %slocked.\n", lock ? "" : "un");
	266	ret = 0;
	267	} else
	268	fprintf(stderr, "Failed to %slock agent.\n", lock ? "" : "un");
	269	memset(p1, 0, strlen(p1));
	270	xfree(p1);
e54b3d7c	271	return (ret);
ff2d7a98	272	}
ff2d7a98	273
e9a17296	274	static int
	275	do_file(AuthenticationConnection ac, int deleting, char file)
	276	{
	277	if (deleting) {
	278	if (delete_file(ac, file) == -1)
	279	return -1;
	280	} else {
	281	if (add_file(ac, file) == -1)
	282	return -1;
	283	}
	284	return 0;
3c0ef626	285	}
	286
	287	static void
	288	usage(void)
	289	{
	290	fprintf(stderr, "Usage: %s [options]\n", __progname);
	291	fprintf(stderr, "Options:\n");
	292	fprintf(stderr, " -l List fingerprints of all identities.\n");
	293	fprintf(stderr, " -L List public key parameters of all identities.\n");
	294	fprintf(stderr, " -d Delete identity.\n");
	295	fprintf(stderr, " -D Delete all identities.\n");
ff2d7a98	296	fprintf(stderr, " -x Lock agent.\n");
e54b3d7c	297	fprintf(stderr, " -X Unlock agent.\n");
ff2d7a98	298	fprintf(stderr, " -t life Set lifetime (in seconds) when adding identities.\n");
1c14df9e	299	fprintf(stderr, " -c Require confirmation to sign using identities\n");
3c0ef626	300	#ifdef SMARTCARD
	301	fprintf(stderr, " -s reader Add key in smartcard reader.\n");
	302	fprintf(stderr, " -e reader Remove key in smartcard reader.\n");
	303	#endif
	304	}
	305
	306	int
	307	main(int argc, char **argv)
	308	{
	309	extern char *optarg;
	310	extern int optind;
	311	AuthenticationConnection *ac = NULL;
3c0ef626	312	char *sc_reader_id = NULL;
	313	int i, ch, deleting = 0, ret = 0;
	314
70791e56	315	__progname = ssh_get_progname(argv[0]);
d53ea349	316	init_pathnames();
3c0ef626	317	init_rng();
	318	seed_rng();
	319
	320	SSLeay_add_all_algorithms();
	321
	322	/* At first, get a connection to the authentication agent. */
	323	ac = ssh_get_authentication_connection();
	324	if (ac == NULL) {
	325	fprintf(stderr, "Could not open a connection to your authentication agent.\n");
e9a17296	326	exit(2);
3c0ef626	327	}
1c14df9e	328	while ((ch = getopt(argc, argv, "lLcdDxXe:s:t:")) != -1) {
3c0ef626	329	switch (ch) {
	330	case 'l':
	331	case 'L':
e9a17296	332	if (list_identities(ac, ch == 'l' ? 1 : 0) == -1)
e9a17296	333	ret = 1;
3c0ef626	334	goto done;
3c0ef626	335	break;
ff2d7a98	336	case 'x':
	337	case 'X':
	338	if (lock_agent(ac, ch == 'x' ? 1 : 0) == -1)
	339	ret = 1;
	340	goto done;
	341	break;
1c14df9e	342	case 'c':
	343	confirm = 1;
	344	break;
3c0ef626	345	case 'd':
	346	deleting = 1;
	347	break;
	348	case 'D':
	349	if (delete_all(ac) == -1)
	350	ret = 1;
	351	goto done;
	352	break;
	353	case 's':
	354	sc_reader_id = optarg;
	355	break;
	356	case 'e':
e9a17296	357	deleting = 1;
3c0ef626	358	sc_reader_id = optarg;
3c0ef626	359	break;
ff2d7a98	360	case 't':
	361	if ((lifetime = convtime(optarg)) == -1) {
	362	fprintf(stderr, "Invalid lifetime\n");
	363	ret = 1;
	364	goto done;
	365	}
	366	break;
3c0ef626	367	default:
	368	usage();
	369	ret = 1;
	370	goto done;
	371	}
	372	}
	373	argc -= optind;
	374	argv += optind;
	375	if (sc_reader_id != NULL) {
	376	if (update_card(ac, !deleting, sc_reader_id) == -1)
	377	ret = 1;
	378	goto done;
	379	}
	380	if (argc == 0) {
e9a17296	381	char buf[MAXPATHLEN];
e9a17296	382	struct passwd *pw;
2980ea68	383	struct stat st;
2980ea68	384	int count = 0;
e9a17296	385
e9a17296	386	if ((pw = getpwuid(getuid())) == NULL) {
3c0ef626	387	fprintf(stderr, "No user found with uid %u\n",
	388	(u_int)getuid());
	389	ret = 1;
	390	goto done;
	391	}
e9a17296	392
34fee935	393	for (i = 0; default_files[i]; i++) {
2980ea68	394	snprintf(buf, sizeof(buf), "%s/%s", pw->pw_dir,
e9a17296	395	default_files[i]);
2980ea68	396	if (stat(buf, &st) < 0)
2980ea68	397	continue;
e9a17296	398	if (do_file(ac, deleting, buf) == -1)
3c0ef626	399	ret = 1;
2980ea68	400	else
2980ea68	401	count++;
3c0ef626	402	}
2980ea68	403	if (count == 0)
2980ea68	404	ret = 1;
3c0ef626	405	} else {
34fee935	406	for (i = 0; i < argc; i++) {
e9a17296	407	if (do_file(ac, deleting, argv[i]) == -1)
e9a17296	408	ret = 1;
3c0ef626	409	}
	410	}
	411	clear_pass();
	412
	413	done:
	414	ssh_close_authentication_connection(ac);
	415	return ret;
	416	}