- extern ServerOptions options;
- char *encrypted_password;
-
- if (pw->pw_uid == 0 && options.permit_root_login == 2)
- {
- /*packet_send_debug("Server does not permit root login with password.");*/
- return 0;
- }
-
- if (*password == '\0' && options.permit_empty_passwd == 0)
- {
- /*packet_send_debug("Server does not permit empty password login.");*/
- return 0;
- }
-
- /* deny if no user. */
- if (pw == NULL)
- return 0;
-
-#ifdef SKEY
- if (options.skey_authentication == 1) {
- if (strncasecmp(password, "s/key", 5) == 0) {
- char *skeyinfo = skey_keyinfo(pw->pw_name);
- if(skeyinfo == NULL){
- debug("generating fake skeyinfo for %.100s.", pw->pw_name);
- skeyinfo = skey_fake_keyinfo(pw->pw_name);
- }
- if(skeyinfo != NULL)
- packet_send_debug(skeyinfo);
- /* Try again. */
- return 0;
- }
- else if (skey_haskey(pw->pw_name) == 0 &&
- skey_passcheck(pw->pw_name, (char *)password) != -1) {
- /* Authentication succeeded. */
- return 1;
- }
- /* Fall back to ordinary passwd authentication. */
- }
-#endif
-
-#if defined(KRB4)
- /* Support for Kerberos v4 authentication - Dug Song <dugsong@UMICH.EDU> */
- if (options.kerberos_authentication)
- {
- AUTH_DAT adata;
- KTEXT_ST tkt;
- struct hostent *hp;
- unsigned long faddr;
- char localhost[MAXHOSTNAMELEN];
- char phost[INST_SZ];
- char realm[REALM_SZ];
- int r;
-
- /* Try Kerberos password authentication only for non-root
- users and only if Kerberos is installed. */
- if (pw->pw_uid != 0 && krb_get_lrealm(realm, 1) == KSUCCESS) {
-
- /* Set up our ticket file. */
- if (!krb4_init(pw->pw_uid)) {
- log("Couldn't initialize Kerberos ticket file for %s!", pw->pw_name);
- goto kerberos_auth_failure;
- }
- /* Try to get TGT using our password. */
- r = krb_get_pw_in_tkt((char *)pw->pw_name, "", realm, "krbtgt", realm,
- DEFAULT_TKT_LIFE, (char *)password);
- if (r != INTK_OK) {
- packet_send_debug("Kerberos V4 password authentication for %s "
- "failed: %s", pw->pw_name, krb_err_txt[r]);
- goto kerberos_auth_failure;
- }
- /* Successful authentication. */
- chown(tkt_string(), pw->pw_uid, pw->pw_gid);
-
- /* Now that we have a TGT, try to get a local "rcmd" ticket to
- ensure that we are not talking to a bogus Kerberos server. */
- (void) gethostname(localhost, sizeof(localhost));
- (void) strlcpy(phost, (char *)krb_get_phost(localhost), INST_SZ);
- r = krb_mk_req(&tkt, KRB4_SERVICE_NAME, phost, realm, 33);
-
- if (r == KSUCCESS) {
- if (!(hp = gethostbyname(localhost))) {
- log("Couldn't get local host address!");
- goto kerberos_auth_failure;
- }
- memmove((void *)&faddr, (void *)hp->h_addr, sizeof(faddr));
-
- /* Verify our "rcmd" ticket. */
- r = krb_rd_req(&tkt, KRB4_SERVICE_NAME, phost, faddr, &adata, "");
- if (r == RD_AP_UNDEC) {
- /* Probably didn't have a srvtab on localhost. Allow login. */
- log("Kerberos V4 TGT for %s unverifiable, no srvtab installed? "
- "krb_rd_req: %s", pw->pw_name, krb_err_txt[r]);
- }
- else if (r != KSUCCESS) {
- log("Kerberos V4 %s ticket unverifiable: %s",
- KRB4_SERVICE_NAME, krb_err_txt[r]);
- goto kerberos_auth_failure;
- }
+ struct passwd * pw = authctxt->pw;
+ char *encrypted_password;
+ char *pw_password;
+ char *salt;
+#ifdef __hpux
+ struct pr_passwd *spw;
+#endif
+#ifdef HAVE_SCO_PROTECTED_PW
+ struct pr_passwd *spw;
+#endif /* HAVE_SCO_PROTECTED_PW */
+#if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
+ struct spwd *spw;
+#endif
+#if defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW)
+ struct passwd_adjunct *spw;
+#endif
+#ifdef WITH_AIXAUTHENTICATE
+ char *authmsg;
+ char *loginmsg;
+ int reenter = 1;
+#endif
+
+ /* deny if no user. */
+ if (pw == NULL)
+ return 0;
+#ifndef HAVE_CYGWIN
+ if (pw->pw_uid == 0 && options.permit_root_login != PERMIT_YES)
+ return 0;
+#endif
+#ifdef HAVE_CYGWIN
+ /*
+ * Empty password is only possible on NT if the user has _really_
+ * an empty password and authentication is done, though.
+ */
+ if (!is_winnt)
+#endif
+ if (*password == '\0' && options.permit_empty_passwd == 0)
+ return 0;
+#ifdef KRB5
+ if (options.kerberos_authentication == 1) {
+ int ret = auth_krb5_password(authctxt, password);
+ if (ret == 1 || ret == 0)
+ return ret;
+ /* Fall back to ordinary passwd authentication. */