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-rw-r--r--openbsd-compat/port-uw.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/openbsd-compat/port-uw.c b/openbsd-compat/port-uw.c
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+/*
+ * Copyright (c) 2005 The SCO Group. All rights reserved.
+ * Copyright (c) 2005 Tim Rice. 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"
+
+#if defined(HAVE_LIBIAF) && !defined(HAVE_SECUREWARE)
+#include <sys/types.h>
+#ifdef HAVE_CRYPT_H
+# include <crypt.h>
+#endif
+#include <pwd.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "xmalloc.h"
+#include "packet.h"
+#include "auth-options.h"
+#include "log.h"
+#include "misc.h" /* servconf.h needs misc.h for struct ForwardOptions */
+#include "servconf.h"
+#include "hostfile.h"
+#include "auth.h"
+#include "ssh.h"
+#include "ssh_api.h"
+
+int nischeck(char *);
+
+int
+sys_auth_passwd(struct ssh *ssh, const char *password)
+{
+ Authctxt *authctxt = ssh->authctxt;
+ struct passwd *pw = authctxt->pw;
+ char *salt;
+ int result;
+
+ /* Just use the supplied fake password if authctxt is invalid */
+ char *pw_password = authctxt->valid ? shadow_pw(pw) : pw->pw_passwd;
+
+ if (pw_password == NULL)
+ return 0;
+
+ /* Check for users with no password. */
+ if (strcmp(pw_password, "") == 0 && strcmp(password, "") == 0)
+ return (1);
+
+ /* Encrypt the candidate password using the proper salt. */
+ salt = (pw_password[0] && pw_password[1]) ? pw_password : "xx";
+
+ /*
+ * Authentication is accepted if the encrypted passwords
+ * are identical.
+ */
+#ifdef UNIXWARE_LONG_PASSWORDS
+ if (!nischeck(pw->pw_name)) {
+ result = ((strcmp(bigcrypt(password, salt), pw_password) == 0)
+ || (strcmp(osr5bigcrypt(password, salt), pw_password) == 0));
+ }
+ else
+#endif /* UNIXWARE_LONG_PASSWORDS */
+ result = (strcmp(xcrypt(password, salt), pw_password) == 0);
+
+#ifdef USE_LIBIAF
+ if (authctxt->valid)
+ free(pw_password);
+#endif
+ return(result);
+}
+
+#ifdef UNIXWARE_LONG_PASSWORDS
+int
+nischeck(char *namep)
+{
+ char password_file[] = "/etc/passwd";
+ FILE *fd;
+ struct passwd *ent = NULL;
+
+ if ((fd = fopen (password_file, "r")) == NULL) {
+ /*
+ * If the passwd file has disappeared we are in a bad state.
+ * However, returning 0 will send us back through the
+ * authentication scheme that has checked the ia database for
+ * passwords earlier.
+ */
+ return(0);
+ }
+
+ /*
+ * fgetpwent() only reads from password file, so we know for certain
+ * that the user is local.
+ */
+ while (ent = fgetpwent(fd)) {
+ if (strcmp (ent->pw_name, namep) == 0) {
+ /* Local user */
+ fclose (fd);
+ return(0);
+ }
+ }
+
+ fclose (fd);
+ return (1);
+}
+
+#endif /* UNIXWARE_LONG_PASSWORDS */
+
+/*
+ NOTE: ia_get_logpwd() allocates memory for arg 2
+ functions that call shadow_pw() will need to free
+ */
+
+#ifdef USE_LIBIAF
+char *
+get_iaf_password(struct passwd *pw)
+{
+ char *pw_password = NULL;
+
+ uinfo_t uinfo;
+ if (!ia_openinfo(pw->pw_name,&uinfo)) {
+ ia_get_logpwd(uinfo, &pw_password);
+ if (pw_password == NULL)
+ fatal("ia_get_logpwd: Unable to get the shadow passwd");
+ ia_closeinfo(uinfo);
+ return pw_password;
+ }
+ else
+ fatal("ia_openinfo: Unable to open the shadow passwd file");
+}
+#endif /* USE_LIBIAF */
+#endif /* HAVE_LIBIAF and not HAVE_SECUREWARE */
+