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Annotation of src/crypto/external/bsd/openssh/dist/auth2-passwd.c, Revision 1.5.2.2

1.5.2.2 ! pgoyette    1: /*     $NetBSD: auth2-passwd.c,v 1.7 2017/04/18 18:41:46 christos Exp $        */
1.4       christos    2: /* $OpenBSD: auth2-passwd.c,v 1.12 2014/07/15 15:54:14 millert Exp $ */
1.1       christos    3: /*
                      4:  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  *
                     15:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     17:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     18:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     19:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     20:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     21:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     22:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     23:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     24:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                     25:  */
                     26:
1.2       christos   27: #include "includes.h"
1.5.2.2 ! pgoyette   28: __RCSID("$NetBSD: auth2-passwd.c,v 1.7 2017/04/18 18:41:46 christos Exp $");
1.1       christos   29: #include <sys/types.h>
                     30:
                     31: #include <string.h>
                     32: #include <stdarg.h>
                     33:
                     34: #include "xmalloc.h"
                     35: #include "packet.h"
                     36: #include "log.h"
                     37: #include "key.h"
                     38: #include "hostfile.h"
                     39: #include "auth.h"
                     40: #include "buffer.h"
                     41: #ifdef GSSAPI
                     42: #include "ssh-gss.h"
                     43: #endif
                     44: #include "monitor_wrap.h"
1.4       christos   45: #include "misc.h"
1.1       christos   46: #include "servconf.h"
                     47:
                     48: /* import */
                     49: extern ServerOptions options;
                     50:
                     51: static int
                     52: userauth_passwd(Authctxt *authctxt)
                     53: {
                     54:        char *password, *newpass;
                     55:        int authenticated = 0;
                     56:        int change;
                     57:        u_int len, newlen;
                     58:
                     59:        change = packet_get_char();
                     60:        password = packet_get_string(&len);
                     61:        if (change) {
                     62:                /* discard new password from packet */
                     63:                newpass = packet_get_string(&newlen);
1.4       christos   64:                explicit_bzero(newpass, newlen);
1.3       christos   65:                free(newpass);
1.1       christos   66:        }
                     67:        packet_check_eom();
                     68:
                     69:        if (change)
                     70:                logit("password change not supported");
                     71:        else if (PRIVSEP(auth_password(authctxt, password)) == 1)
                     72:                authenticated = 1;
1.4       christos   73:        explicit_bzero(password, len);
1.3       christos   74:        free(password);
1.1       christos   75:        return authenticated;
                     76: }
                     77:
                     78: Authmethod method_passwd = {
                     79:        "password",
                     80:        userauth_passwd,
                     81:        &options.password_authentication
                     82: };