1 files changed, 142 insertions, 0 deletions

diff --git a/other/openssh-2.1.1p4/auth-passwd.c b/other/openssh-2.1.1p4/auth-passwd.c
new file mode 100644
index 0000000..93756e9
--- /dev/null
+++ b/other/openssh-2.1.1p4/auth-passwd.c
@@ -0,0 +1,142 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ * Created: Sat Mar 18 05:11:38 1995 ylo
+ * Password authentication.  This file contains the functions to check whether
+ * the password is valid for the user.
+ */
+
+#include "includes.h"
+
+RCSID("$OpenBSD: auth-passwd.c,v 1.16 2000/06/20 01:39:38 markus Exp $");
+
+#if !defined(USE_PAM) && !defined(HAVE_OSF_SIA)
+
+#include "packet.h"
+#include "ssh.h"
+#include "servconf.h"
+#include "xmalloc.h"
+
+#ifdef WITH_AIXAUTHENTICATE
+# include <login.h>
+#endif
+#ifdef HAVE_HPUX_TRUSTED_SYSTEM_PW
+# include <hpsecurity.h>
+# include <prot.h>
+#endif
+#ifdef HAVE_SHADOW_H
+# include <shadow.h>
+#endif
+#ifdef HAVE_GETPWANAM
+# include <sys/label.h>
+# include <sys/audit.h>
+# include <pwdadj.h>
+#endif
+#if defined(HAVE_MD5_PASSWORDS) && !defined(HAVE_MD5_CRYPT)
+# include "md5crypt.h"
+#endif /* defined(HAVE_MD5_PASSWORDS) && !defined(HAVE_MD5_CRYPT) */
+
+/*
+ * Tries to authenticate the user using password.  Returns true if
+ * authentication succeeds.
+ */
+int
+auth_password(struct passwd * pw, const char *password)
+{
+        extern ServerOptions options;
+        char *encrypted_password;
+        char *pw_password;
+        char *salt;
+#ifdef HAVE_SHADOW_H
+        struct spwd *spw;
+#endif
+#ifdef HAVE_GETPWANAM
+        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;
+        if (pw->pw_uid == 0 && options.permit_root_login == 2)
+                return 0;
+        if (*password == '\0' && options.permit_empty_passwd == 0)
+                return 0;
+
+#ifdef SKEY
+        if (options.skey_authentication == 1) {
+                int ret = auth_skey_password(pw, password);
+                if (ret == 1 || ret == 0)
+                        return ret;
+                /* Fall back to ordinary passwd authentication. */
+        }
+#endif
+
+#ifdef WITH_AIXAUTHENTICATE
+        return (authenticate(pw->pw_name,password,&reenter,&authmsg) == 0);
+#endif
+
+#ifdef KRB4
+        if (options.kerberos_authentication == 1) {
+                int ret = auth_krb4_password(pw, password);
+                if (ret == 1 || ret == 0)
+                        return ret;
+                /* Fall back to ordinary passwd authentication. */
+        }
+#endif
+
+        /* Check for users with no password. */
+        if (strcmp(password, "") == 0 && strcmp(pw->pw_passwd, "") == 0)
+                return 1;
+
+        pw_password = pw->pw_passwd;
+
+#if defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW)
+        spw = getspnam(pw->pw_name);
+        if (spw != NULL) 
+        {
+                /* Check for users with no password. */
+                if (strcmp(password, "") == 0 && strcmp(spw->sp_pwdp, "") == 0)
+                        return 1;
+
+                pw_password = spw->sp_pwdp;
+        }
+#endif /* defined(HAVE_SHADOW_H) && !defined(DISABLE_SHADOW) */
+#if defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW)
+        if (issecure() && (spw = getpwanam(pw->pw_name)) != NULL)
+        {
+                /* Check for users with no password. */
+                if (strcmp(password, "") == 0 && strcmp(spw->pwa_passwd, "") == 0)
+                        return 1;
+
+                pw_password = spw->pwa_passwd;
+        }
+#endif /* defined(HAVE_GETPWANAM) && !defined(DISABLE_SHADOW) */
+
+        if (pw_password[0] != '\0')
+                salt = pw_password;
+        else
+                salt = "xx";
+
+#ifdef HAVE_MD5_PASSWORDS
+        if (is_md5_salt(salt))
+                encrypted_password = md5_crypt(password, salt);
+        else
+                encrypted_password = crypt(password, salt);
+#else /* HAVE_MD5_PASSWORDS */    
+# ifdef HAVE_HPUX_TRUSTED_SYSTEM_PW
+        encrypted_password = bigcrypt(password, salt);
+# else
+        encrypted_password = crypt(password, salt);
+# endif /* HAVE_HPUX_TRUSTED_SYSTEM_PW */
+#endif /* HAVE_MD5_PASSWORDS */    
+
+        /* Authentication is accepted if the encrypted passwords are identical. */
+        return (strcmp(encrypted_password, pw_password) == 0);
+}
+#endif /* !USE_PAM && !HAVE_OSF_SIA */