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Annotation of embedaddon/sudo/plugins/sudoers/auth/secureware.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (c) 1998-2005, 2010-2011 Todd C. Miller <Todd.Miller@courtesan.com>
                      3:  *
                      4:  * Permission to use, copy, modify, and distribute this software for any
                      5:  * purpose with or without fee is hereby granted, provided that the above
                      6:  * copyright notice and this permission notice appear in all copies.
                      7:  *
                      8:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                      9:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     10:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     11:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     12:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     13:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     14:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     15:  *
                     16:  * Sponsored in part by the Defense Advanced Research Projects
                     17:  * Agency (DARPA) and Air Force Research Laboratory, Air Force
                     18:  * Materiel Command, USAF, under agreement number F39502-99-1-0512.
                     19:  */
                     20: 
                     21: #include <config.h>
                     22: 
                     23: #include <sys/types.h>
                     24: #include <sys/param.h>
                     25: #include <stdio.h>
                     26: #ifdef STDC_HEADERS
                     27: # include <stdlib.h>
                     28: # include <stddef.h>
                     29: #else
                     30: # ifdef HAVE_STDLIB_H
                     31: #  include <stdlib.h>
                     32: # endif
                     33: #endif /* STDC_HEADERS */
                     34: #ifdef HAVE_STRING_H
                     35: # include <string.h>
                     36: #endif /* HAVE_STRING_H */
                     37: #ifdef HAVE_STRINGS_H
                     38: # include <strings.h>
                     39: #endif /* HAVE_STRINGS_H */
                     40: #ifdef HAVE_UNISTD_H
                     41: # include <unistd.h>
                     42: #endif /* HAVE_UNISTD_H */
                     43: #include <pwd.h>
                     44: #ifdef __hpux
                     45: #  undef MAXINT
                     46: #  include <hpsecurity.h>
                     47: #else
                     48: #  include <sys/security.h>
                     49: #endif /* __hpux */
                     50: #include <prot.h>
                     51: 
                     52: #include "sudoers.h"
                     53: #include "sudo_auth.h"
                     54: 
                     55: int
                     56: secureware_init(struct passwd *pw, sudo_auth *auth)
                     57: {
                     58: #ifdef __alpha
                     59:     extern int crypt_type;
                     60: 
                     61:     if (crypt_type == INT_MAX)
                     62:        return AUTH_FAILURE;                    /* no shadow */
                     63: #endif
                     64:     sudo_setspent();
                     65:     auth->data = sudo_getepw(pw);
                     66:     sudo_endspent();
                     67:     return AUTH_SUCCESS;
                     68: }
                     69: 
                     70: int
                     71: secureware_verify(struct passwd *pw, char *pass, sudo_auth *auth)
                     72: {
                     73:     char *pw_epasswd = auth->data;
                     74: #ifdef __alpha
                     75:     extern int crypt_type;
                     76: 
                     77: #  ifdef HAVE_DISPCRYPT
                     78:     if (strcmp(pw_epasswd, dispcrypt(pass, pw_epasswd, crypt_type)) == 0)
                     79:        return AUTH_SUCCESS;
                     80: #  else
                     81:     if (crypt_type == AUTH_CRYPT_BIGCRYPT) {
                     82:        if (strcmp(pw_epasswd, bigcrypt(pass, pw_epasswd)) == 0)
                     83:            return AUTH_SUCCESS;
                     84:     } else if (crypt_type == AUTH_CRYPT_CRYPT16) {
                     85:        if (strcmp(pw_epasswd, crypt(pass, pw_epasswd)) == 0)
                     86:            return AUTH_SUCCESS;
                     87:     }
                     88: #  endif /* HAVE_DISPCRYPT */
                     89: #elif defined(HAVE_BIGCRYPT)
                     90:     if (strcmp(pw_epasswd, bigcrypt(pass, pw_epasswd)) == 0)
                     91:        return AUTH_SUCCESS;
                     92: #endif /* __alpha */
                     93: 
                     94:        return AUTH_FAILURE;
                     95: }
                     96: 
                     97: int
                     98: secureware_cleanup(pw, auth)
                     99:     struct passwd *pw;
                    100:     sudo_auth *auth;
                    101: {
                    102:     char *pw_epasswd = auth->data;
                    103: 
                    104:     if (pw_epasswd != NULL) {
                    105:        zero_bytes(pw_epasswd, strlen(pw_epasswd));
                    106:        efree(pw_epasswd);
                    107:     }
                    108:     return AUTH_SUCCESS;
                    109: }