version 1.8.2.1, 2000/09/01 18:23:17 |
version 1.8.2.2, 2000/11/08 21:30:25 |
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* 2. Redistributions in binary form must reproduce the above copyright |
* 2. Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* documentation and/or other materials provided with the distribution. |
* 3. All advertising materials mentioning features or use of this software |
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* must display the following acknowledgement: |
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* This product includes software developed by Markus Friedl. |
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* 4. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
*/ |
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#include "includes.h" |
#include "includes.h" |
RCSID("$OpenBSD$"); |
RCSID("$OpenBSD$"); |
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#include "pty.h" |
#include "pty.h" |
#include "packet.h" |
#include "packet.h" |
#include "buffer.h" |
#include "buffer.h" |
#include "cipher.h" |
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#include "servconf.h" |
#include "servconf.h" |
#include "compat.h" |
#include "compat.h" |
#include "channels.h" |
#include "channels.h" |
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extern unsigned char *session_id2; |
extern unsigned char *session_id2; |
extern int session_id2_len; |
extern int session_id2_len; |
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static Authctxt *x_authctxt = NULL; |
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static int one = 1; |
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typedef struct Authmethod Authmethod; |
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struct Authmethod { |
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char *name; |
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int (*userauth)(Authctxt *authctxt); |
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int *enabled; |
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}; |
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/* protocol */ |
/* protocol */ |
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void input_service_request(int type, int plen); |
void input_service_request(int type, int plen, void *ctxt); |
void input_userauth_request(int type, int plen); |
void input_userauth_request(int type, int plen, void *ctxt); |
void protocol_error(int type, int plen); |
void protocol_error(int type, int plen, void *ctxt); |
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/* auth */ |
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int ssh2_auth_none(struct passwd *pw); |
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int ssh2_auth_password(struct passwd *pw); |
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int ssh2_auth_pubkey(struct passwd *pw, char *service); |
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/* helper */ |
/* helper */ |
struct passwd* auth_set_user(char *u, char *s); |
Authmethod *authmethod_lookup(const char *name); |
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struct passwd *pwcopy(struct passwd *pw); |
int user_dsa_key_allowed(struct passwd *pw, Key *key); |
int user_dsa_key_allowed(struct passwd *pw, Key *key); |
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char *authmethods_get(void); |
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typedef struct Authctxt Authctxt; |
/* auth */ |
struct Authctxt { |
int userauth_none(Authctxt *authctxt); |
char *user; |
int userauth_passwd(Authctxt *authctxt); |
char *service; |
int userauth_pubkey(Authctxt *authctxt); |
struct passwd pw; |
int userauth_kbdint(Authctxt *authctxt); |
int valid; |
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Authmethod authmethods[] = { |
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{"none", |
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userauth_none, |
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&one}, |
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{"publickey", |
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userauth_pubkey, |
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&options.dsa_authentication}, |
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{"keyboard-interactive", |
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userauth_kbdint, |
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&options.kbd_interactive_authentication}, |
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{"password", |
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userauth_passwd, |
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&options.password_authentication}, |
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{NULL, NULL, NULL} |
}; |
}; |
static Authctxt *authctxt = NULL; |
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static int userauth_success = 0; |
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/* |
/* |
* loop until userauth_success == TRUE |
* loop until authctxt->success == TRUE |
*/ |
*/ |
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void |
void |
do_authentication2() |
do_authentication2() |
{ |
{ |
/* turn off skey/kerberos, not supported by SSH2 */ |
Authctxt *authctxt = xmalloc(sizeof(*authctxt)); |
#ifdef SKEY |
memset(authctxt, 'a', sizeof(*authctxt)); |
options.skey_authentication = 0; |
authctxt->valid = 0; |
#endif |
authctxt->attempt = 0; |
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authctxt->success = 0; |
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x_authctxt = authctxt; /*XXX*/ |
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#ifdef KRB4 |
#ifdef KRB4 |
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/* turn off kerberos, not supported by SSH2 */ |
options.kerberos_authentication = 0; |
options.kerberos_authentication = 0; |
#endif |
#endif |
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dispatch_init(&protocol_error); |
dispatch_init(&protocol_error); |
dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request); |
dispatch_set(SSH2_MSG_SERVICE_REQUEST, &input_service_request); |
dispatch_run(DISPATCH_BLOCK, &userauth_success); |
dispatch_run(DISPATCH_BLOCK, &authctxt->success, authctxt); |
do_authenticated2(); |
do_authenticated2(); |
} |
} |
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void |
void |
protocol_error(int type, int plen) |
protocol_error(int type, int plen, void *ctxt) |
{ |
{ |
log("auth: protocol error: type %d plen %d", type, plen); |
log("auth: protocol error: type %d plen %d", type, plen); |
packet_start(SSH2_MSG_UNIMPLEMENTED); |
packet_start(SSH2_MSG_UNIMPLEMENTED); |
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} |
} |
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void |
void |
input_service_request(int type, int plen) |
input_service_request(int type, int plen, void *ctxt) |
{ |
{ |
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Authctxt *authctxt = ctxt; |
unsigned int len; |
unsigned int len; |
int accept = 0; |
int accept = 0; |
char *service = packet_get_string(&len); |
char *service = packet_get_string(&len); |
packet_done(); |
packet_done(); |
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if (authctxt == NULL) |
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fatal("input_service_request: no authctxt"); |
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if (strcmp(service, "ssh-userauth") == 0) { |
if (strcmp(service, "ssh-userauth") == 0) { |
if (!userauth_success) { |
if (!authctxt->success) { |
accept = 1; |
accept = 1; |
/* now we can handle user-auth requests */ |
/* now we can handle user-auth requests */ |
dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &input_userauth_request); |
dispatch_set(SSH2_MSG_USERAUTH_REQUEST, &input_userauth_request); |
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} |
} |
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void |
void |
input_userauth_request(int type, int plen) |
input_userauth_request(int type, int plen, void *ctxt) |
{ |
{ |
static void (*authlog) (const char *fmt,...) = verbose; |
Authctxt *authctxt = ctxt; |
static int attempt = 0; |
Authmethod *m = NULL; |
unsigned int len; |
char *user, *service, *method; |
int authenticated = 0; |
int authenticated = 0; |
char *user, *service, *method, *authmsg = NULL; |
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struct passwd *pw; |
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if (++attempt == AUTH_FAIL_MAX) |
if (authctxt == NULL) |
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fatal("input_userauth_request: no authctxt"); |
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if (authctxt->attempt++ >= AUTH_FAIL_MAX) |
packet_disconnect("too many failed userauth_requests"); |
packet_disconnect("too many failed userauth_requests"); |
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user = packet_get_string(&len); |
user = packet_get_string(NULL); |
service = packet_get_string(&len); |
service = packet_get_string(NULL); |
method = packet_get_string(&len); |
method = packet_get_string(NULL); |
debug("userauth-request for user %s service %s method %s", user, service, method); |
debug("userauth-request for user %s service %s method %s", user, service, method); |
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debug("attempt #%d", authctxt->attempt); |
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/* XXX we only allow the ssh-connection service */ |
if (authctxt->attempt == 1) { |
pw = auth_set_user(user, service); |
/* setup auth context */ |
if (pw && strcmp(service, "ssh-connection")==0) { |
struct passwd *pw = NULL; |
if (strcmp(method, "none") == 0) { |
setproctitle("%s", user); |
authenticated = ssh2_auth_none(pw); |
pw = getpwnam(user); |
} else if (strcmp(method, "password") == 0) { |
if (pw && allowed_user(pw) && strcmp(service, "ssh-connection")==0) { |
authenticated = ssh2_auth_password(pw); |
authctxt->pw = pwcopy(pw); |
} else if (strcmp(method, "publickey") == 0) { |
authctxt->valid = 1; |
authenticated = ssh2_auth_pubkey(pw, service); |
debug2("input_userauth_request: setting up authctxt for %s", user); |
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} else { |
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log("input_userauth_request: illegal user %s", user); |
} |
} |
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authctxt->user = xstrdup(user); |
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authctxt->service = xstrdup(service); |
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} else if (authctxt->valid) { |
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if (strcmp(user, authctxt->user) != 0 || |
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strcmp(service, authctxt->service) != 0) { |
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log("input_userauth_request: missmatch: (%s,%s)!=(%s,%s)", |
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user, service, authctxt->user, authctxt->service); |
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authctxt->valid = 0; |
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} |
} |
} |
if (authenticated && pw && pw->pw_uid == 0 && !options.permit_root_login) { |
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m = authmethod_lookup(method); |
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if (m != NULL) { |
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debug2("input_userauth_request: try method %s", method); |
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authenticated = m->userauth(authctxt); |
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} else { |
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debug2("input_userauth_request: unsupported method %s", method); |
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} |
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if (!authctxt->valid && authenticated == 1) { |
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log("input_userauth_request: INTERNAL ERROR: authenticated invalid user %s service %s", user, method); |
authenticated = 0; |
authenticated = 0; |
log("ROOT LOGIN REFUSED FROM %.200s", |
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get_canonical_hostname()); |
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} |
} |
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/* Special handling for root */ |
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if (authenticated == 1 && |
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authctxt->valid && authctxt->pw->pw_uid == 0 && !options.permit_root_login) { |
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authenticated = 0; |
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log("ROOT LOGIN REFUSED FROM %.200s", get_canonical_hostname()); |
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} |
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/* Log before sending the reply */ |
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userauth_log(authctxt, authenticated, method); |
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userauth_reply(authctxt, authenticated); |
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xfree(service); |
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xfree(user); |
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xfree(method); |
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} |
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void |
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userauth_log(Authctxt *authctxt, int authenticated, char *method) |
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{ |
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void (*authlog) (const char *fmt,...) = verbose; |
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char *user = NULL, *authmsg = NULL; |
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/* Raise logging level */ |
/* Raise logging level */ |
if (authenticated == 1 || |
if (authenticated == 1 || |
attempt == AUTH_FAIL_LOG || |
!authctxt->valid || |
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authctxt->attempt >= AUTH_FAIL_LOG || |
strcmp(method, "password") == 0) |
strcmp(method, "password") == 0) |
authlog = log; |
authlog = log; |
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/* Log before sending the reply */ |
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if (authenticated == 1) { |
if (authenticated == 1) { |
authmsg = "Accepted"; |
authmsg = "Accepted"; |
} else if (authenticated == 0) { |
} else if (authenticated == 0) { |
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} else { |
} else { |
authmsg = "Postponed"; |
authmsg = "Postponed"; |
} |
} |
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if (authctxt->valid) { |
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user = authctxt->pw->pw_uid == 0 ? "ROOT" : authctxt->user; |
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} else { |
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user = "NOUSER"; |
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} |
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authlog("%s %s for %.200s from %.200s port %d ssh2", |
authlog("%s %s for %.200s from %.200s port %d ssh2", |
authmsg, |
authmsg, |
method, |
method, |
pw && pw->pw_uid == 0 ? "ROOT" : user, |
user, |
get_remote_ipaddr(), |
get_remote_ipaddr(), |
get_remote_port()); |
get_remote_port()); |
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} |
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void |
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userauth_reply(Authctxt *authctxt, int authenticated) |
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{ |
/* XXX todo: check if multiple auth methods are needed */ |
/* XXX todo: check if multiple auth methods are needed */ |
if (authenticated == 1) { |
if (authenticated == 1) { |
/* turn off userauth */ |
/* turn off userauth */ |
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packet_send(); |
packet_send(); |
packet_write_wait(); |
packet_write_wait(); |
/* now we can break out */ |
/* now we can break out */ |
userauth_success = 1; |
authctxt->success = 1; |
} else if (authenticated == 0) { |
} else if (authenticated == 0) { |
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char *methods = authmethods_get(); |
packet_start(SSH2_MSG_USERAUTH_FAILURE); |
packet_start(SSH2_MSG_USERAUTH_FAILURE); |
packet_put_cstring("publickey,password"); /* XXX dynamic */ |
packet_put_cstring(methods); |
packet_put_char(0); /* XXX partial success, unused */ |
packet_put_char(0); /* XXX partial success, unused */ |
packet_send(); |
packet_send(); |
packet_write_wait(); |
packet_write_wait(); |
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xfree(methods); |
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} else { |
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/* do nothing, we did already send a reply */ |
} |
} |
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xfree(service); |
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xfree(user); |
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xfree(method); |
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} |
} |
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int |
int |
ssh2_auth_none(struct passwd *pw) |
userauth_none(Authctxt *authctxt) |
{ |
{ |
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/* disable method "none", only allowed one time */ |
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Authmethod *m = authmethod_lookup("none"); |
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if (m != NULL) |
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m->enabled = NULL; |
packet_done(); |
packet_done(); |
return auth_password(pw, ""); |
return authctxt->valid ? auth_password(authctxt->pw, "") : 0; |
} |
} |
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int |
int |
ssh2_auth_password(struct passwd *pw) |
userauth_passwd(Authctxt *authctxt) |
{ |
{ |
char *password; |
char *password; |
int authenticated = 0; |
int authenticated = 0; |
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log("password change not supported"); |
log("password change not supported"); |
password = packet_get_string(&len); |
password = packet_get_string(&len); |
packet_done(); |
packet_done(); |
if (options.password_authentication && |
if (authctxt->valid && |
auth_password(pw, password) == 1) |
auth_password(authctxt->pw, password) == 1) |
authenticated = 1; |
authenticated = 1; |
memset(password, 0, len); |
memset(password, 0, len); |
xfree(password); |
xfree(password); |
return authenticated; |
return authenticated; |
} |
} |
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int |
int |
ssh2_auth_pubkey(struct passwd *pw, char *service) |
userauth_kbdint(Authctxt *authctxt) |
{ |
{ |
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int authenticated = 0; |
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char *lang = NULL; |
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char *devs = NULL; |
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lang = packet_get_string(NULL); |
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devs = packet_get_string(NULL); |
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packet_done(); |
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debug("keyboard-interactive language %s devs %s", lang, devs); |
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#ifdef SKEY |
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/* XXX hardcoded, we should look at devs */ |
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if (options.skey_authentication != 0) |
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authenticated = auth2_skey(authctxt); |
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#endif |
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xfree(lang); |
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xfree(devs); |
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return authenticated; |
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} |
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int |
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userauth_pubkey(Authctxt *authctxt) |
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{ |
Buffer b; |
Buffer b; |
Key *key; |
Key *key; |
char *pkalg, *pkblob, *sig; |
char *pkalg, *pkblob, *sig; |
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int have_sig; |
int have_sig; |
int authenticated = 0; |
int authenticated = 0; |
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if (options.dsa_authentication == 0) { |
if (!authctxt->valid) { |
debug("pubkey auth disabled"); |
debug2("userauth_pubkey: disabled because of invalid user"); |
return 0; |
return 0; |
} |
} |
have_sig = packet_get_char(); |
have_sig = packet_get_char(); |
pkalg = packet_get_string(&alen); |
pkalg = packet_get_string(&alen); |
if (strcmp(pkalg, KEX_DSS) != 0) { |
if (strcmp(pkalg, KEX_DSS) != 0) { |
xfree(pkalg); |
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log("bad pkalg %s", pkalg); /*XXX*/ |
log("bad pkalg %s", pkalg); /*XXX*/ |
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xfree(pkalg); |
return 0; |
return 0; |
} |
} |
pkblob = packet_get_string(&blen); |
pkblob = packet_get_string(&blen); |
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sig = packet_get_string(&slen); |
sig = packet_get_string(&slen); |
packet_done(); |
packet_done(); |
buffer_init(&b); |
buffer_init(&b); |
if (datafellows & SSH_COMPAT_SESSIONID_ENCODING) { |
if (datafellows & SSH_OLD_SESSIONID) { |
buffer_put_string(&b, session_id2, session_id2_len); |
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} else { |
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buffer_append(&b, session_id2, session_id2_len); |
buffer_append(&b, session_id2, session_id2_len); |
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} else { |
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buffer_put_string(&b, session_id2, session_id2_len); |
} |
} |
/* reconstruct packet */ |
/* reconstruct packet */ |
buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST); |
buffer_put_char(&b, SSH2_MSG_USERAUTH_REQUEST); |
buffer_put_cstring(&b, pw->pw_name); |
buffer_put_cstring(&b, authctxt->user); |
buffer_put_cstring(&b, |
buffer_put_cstring(&b, |
datafellows & SSH_BUG_PUBKEYAUTH ? |
datafellows & SSH_BUG_PUBKEYAUTH ? |
"ssh-userauth" : |
"ssh-userauth" : |
service); |
authctxt->service); |
buffer_put_cstring(&b, "publickey"); |
buffer_put_cstring(&b, "publickey"); |
buffer_put_char(&b, have_sig); |
buffer_put_char(&b, have_sig); |
buffer_put_cstring(&b, KEX_DSS); |
buffer_put_cstring(&b, KEX_DSS); |
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buffer_dump(&b); |
buffer_dump(&b); |
#endif |
#endif |
/* test for correct signature */ |
/* test for correct signature */ |
if (user_dsa_key_allowed(pw, key) && |
if (user_dsa_key_allowed(authctxt->pw, key) && |
dsa_verify(key, sig, slen, buffer_ptr(&b), buffer_len(&b)) == 1) |
dsa_verify(key, sig, slen, buffer_ptr(&b), buffer_len(&b)) == 1) |
authenticated = 1; |
authenticated = 1; |
buffer_clear(&b); |
buffer_clear(&b); |
xfree(sig); |
xfree(sig); |
} else { |
} else { |
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debug("test whether pkalg/pkblob are acceptable"); |
packet_done(); |
packet_done(); |
debug("test key..."); |
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/* test whether pkalg/pkblob are acceptable */ |
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/* XXX fake reply and always send PK_OK ? */ |
/* XXX fake reply and always send PK_OK ? */ |
/* |
/* |
* XXX this allows testing whether a user is allowed |
* XXX this allows testing whether a user is allowed |
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* if a user is not allowed to login. is this an |
* if a user is not allowed to login. is this an |
* issue? -markus |
* issue? -markus |
*/ |
*/ |
if (user_dsa_key_allowed(pw, key)) { |
if (user_dsa_key_allowed(authctxt->pw, key)) { |
packet_start(SSH2_MSG_USERAUTH_PK_OK); |
packet_start(SSH2_MSG_USERAUTH_PK_OK); |
packet_put_string(pkalg, alen); |
packet_put_string(pkalg, alen); |
packet_put_string(pkblob, blen); |
packet_put_string(pkblob, blen); |
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authenticated = -1; |
authenticated = -1; |
} |
} |
} |
} |
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if (authenticated != 1) |
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auth_clear_options(); |
key_free(key); |
key_free(key); |
} |
} |
xfree(pkalg); |
xfree(pkalg); |
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return authenticated; |
return authenticated; |
} |
} |
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/* set and get current user */ |
/* get current user */ |
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struct passwd* |
struct passwd* |
auth_get_user(void) |
auth_get_user(void) |
{ |
{ |
return (authctxt != NULL && authctxt->valid) ? &authctxt->pw : NULL; |
return (x_authctxt != NULL && x_authctxt->valid) ? x_authctxt->pw : NULL; |
} |
} |
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struct passwd* |
#define DELIM "," |
auth_set_user(char *u, char *s) |
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char * |
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authmethods_get(void) |
{ |
{ |
struct passwd *pw, *copy; |
Authmethod *method = NULL; |
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unsigned int size = 0; |
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char *list; |
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if (authctxt == NULL) { |
for (method = authmethods; method->name != NULL; method++) { |
authctxt = xmalloc(sizeof(*authctxt)); |
if (strcmp(method->name, "none") == 0) |
authctxt->valid = 0; |
continue; |
authctxt->user = xstrdup(u); |
if (method->enabled != NULL && *(method->enabled) != 0) { |
authctxt->service = xstrdup(s); |
if (size != 0) |
setproctitle("%s", u); |
size += strlen(DELIM); |
pw = getpwnam(u); |
size += strlen(method->name); |
if (!pw || !allowed_user(pw)) { |
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log("auth_set_user: illegal user %s", u); |
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return NULL; |
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} |
} |
copy = &authctxt->pw; |
} |
memset(copy, 0, sizeof(*copy)); |
size++; /* trailing '\0' */ |
copy->pw_name = xstrdup(pw->pw_name); |
list = xmalloc(size); |
copy->pw_passwd = xstrdup(pw->pw_passwd); |
list[0] = '\0'; |
copy->pw_uid = pw->pw_uid; |
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copy->pw_gid = pw->pw_gid; |
for (method = authmethods; method->name != NULL; method++) { |
copy->pw_class = xstrdup(pw->pw_class); |
if (strcmp(method->name, "none") == 0) |
copy->pw_dir = xstrdup(pw->pw_dir); |
continue; |
copy->pw_shell = xstrdup(pw->pw_shell); |
if (method->enabled != NULL && *(method->enabled) != 0) { |
authctxt->valid = 1; |
if (list[0] != '\0') |
} else { |
strlcat(list, DELIM, size); |
if (strcmp(u, authctxt->user) != 0 || |
strlcat(list, method->name, size); |
strcmp(s, authctxt->service) != 0) { |
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log("auth_set_user: missmatch: (%s,%s)!=(%s,%s)", |
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u, s, authctxt->user, authctxt->service); |
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return NULL; |
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} |
} |
} |
} |
return auth_get_user(); |
return list; |
} |
} |
|
|
|
Authmethod * |
|
authmethod_lookup(const char *name) |
|
{ |
|
Authmethod *method = NULL; |
|
if (name != NULL) |
|
for (method = authmethods; method->name != NULL; method++) |
|
if (method->enabled != NULL && |
|
*(method->enabled) != 0 && |
|
strcmp(name, method->name) == 0) |
|
return method; |
|
debug2("Unrecognized authentication method name: %s", name ? name : "NULL"); |
|
return NULL; |
|
} |
|
|
/* return 1 if user allows given key */ |
/* return 1 if user allows given key */ |
int |
int |
user_dsa_key_allowed(struct passwd *pw, Key *key) |
user_dsa_key_allowed(struct passwd *pw, Key *key) |
|
|
struct stat st; |
struct stat st; |
Key *found; |
Key *found; |
|
|
|
if (pw == NULL) |
|
return 0; |
|
|
/* Temporarily use the user's uid. */ |
/* Temporarily use the user's uid. */ |
temporarily_use_uid(pw->pw_uid); |
temporarily_use_uid(pw->pw_uid); |
|
|
|
|
if (fstat(fileno(f), &st) < 0 || |
if (fstat(fileno(f), &st) < 0 || |
(st.st_uid != 0 && st.st_uid != pw->pw_uid) || |
(st.st_uid != 0 && st.st_uid != pw->pw_uid) || |
(st.st_mode & 022) != 0) { |
(st.st_mode & 022) != 0) { |
snprintf(buf, sizeof buf, "DSA authentication refused for %.100s: " |
snprintf(buf, sizeof buf, |
"bad ownership or modes for '%s'.", pw->pw_name, file); |
"%s authentication refused for %.100s: " |
|
"bad ownership or modes for '%s'.", |
|
key_type(key), pw->pw_name, file); |
fail = 1; |
fail = 1; |
} else { |
} else { |
/* Check path to SSH_USER_PERMITTED_KEYS */ |
/* Check path to SSH_USER_PERMITTED_KEYS */ |
|
|
(st.st_uid != 0 && st.st_uid != pw->pw_uid) || |
(st.st_uid != 0 && st.st_uid != pw->pw_uid) || |
(st.st_mode & 022) != 0) { |
(st.st_mode & 022) != 0) { |
snprintf(buf, sizeof buf, |
snprintf(buf, sizeof buf, |
"DSA authentication refused for %.100s: " |
"%s authentication refused for %.100s: " |
"bad ownership or modes for '%s'.", |
"bad ownership or modes for '%s'.", |
pw->pw_name, line); |
key_type(key), pw->pw_name, line); |
fail = 1; |
fail = 1; |
break; |
break; |
} |
} |
|
|
} |
} |
} |
} |
found_key = 0; |
found_key = 0; |
found = key_new(KEY_DSA); |
found = key_new(key->type); |
|
|
while (fgets(line, sizeof(line), f)) { |
while (fgets(line, sizeof(line), f)) { |
char *cp, *options = NULL; |
char *cp, *options = NULL; |
|
|
fclose(f); |
fclose(f); |
key_free(found); |
key_free(found); |
return found_key; |
return found_key; |
|
} |
|
|
|
struct passwd * |
|
pwcopy(struct passwd *pw) |
|
{ |
|
struct passwd *copy = xmalloc(sizeof(*copy)); |
|
memset(copy, 0, sizeof(*copy)); |
|
copy->pw_name = xstrdup(pw->pw_name); |
|
copy->pw_passwd = xstrdup(pw->pw_passwd); |
|
copy->pw_uid = pw->pw_uid; |
|
copy->pw_gid = pw->pw_gid; |
|
copy->pw_class = xstrdup(pw->pw_class); |
|
copy->pw_dir = xstrdup(pw->pw_dir); |
|
copy->pw_shell = xstrdup(pw->pw_shell); |
|
return copy; |
} |
} |