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Makefile.am
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Makefile.in
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pam_unix.c
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Editing: pam_unix.c
/*- * Copyright (c) 2002-2003 Networks Associates Technology, Inc. * Copyright (c) 2004-2015 Dag-Erling Smørgrav * All rights reserved. * * This software was developed for the FreeBSD Project by ThinkSec AS and * Network Associates Laboratories, the Security Research Division of * Network Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 * ("CBOSS"), as part of the DARPA CHATS research program. * * 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. * 3. The name of the author may not be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. * * $OpenPAM: pam_unix.c 938 2017-04-30 21:34:42Z des $ */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include <sys/param.h> #include <pwd.h> #include <stdlib.h> #include <stdio.h> #include <string.h> #include <unistd.h> #ifdef HAVE_CRYPT_H # include <crypt.h> #endif #include <security/pam_modules.h> #include <security/pam_appl.h> #ifndef OPENPAM static char password_prompt[] = "Password:"; #endif #ifndef PAM_EXTERN #define PAM_EXTERN #endif PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char *argv[]) { #ifndef OPENPAM struct pam_conv *conv; struct pam_message msg; const struct pam_message *msgp; struct pam_response *resp; #endif struct passwd *pwd; const char *user; const char *crypt_password, *password; int pam_err, retry; (void)argc; (void)argv; /* identify user */ if ((pam_err = pam_get_user(pamh, &user, NULL)) != PAM_SUCCESS) return (pam_err); if ((pwd = getpwnam(user)) == NULL) return (PAM_USER_UNKNOWN); /* get password */ #ifndef OPENPAM pam_err = pam_get_item(pamh, PAM_CONV, (const void **)&conv); if (pam_err != PAM_SUCCESS) return (PAM_SYSTEM_ERR); msg.msg_style = PAM_PROMPT_ECHO_OFF; msg.msg = password_prompt; msgp = &msg; #endif for (retry = 0; retry < 3; ++retry) { #ifdef OPENPAM pam_err = pam_get_authtok(pamh, PAM_AUTHTOK, &password, NULL); #else resp = NULL; pam_err = (*conv->conv)(1, &msgp, &resp, conv->appdata_ptr); if (resp != NULL) { if (pam_err == PAM_SUCCESS) password = resp->resp; else free(resp->resp); free(resp); } #endif if (pam_err == PAM_SUCCESS) break; } if (pam_err == PAM_CONV_ERR) return (pam_err); if (pam_err != PAM_SUCCESS) return (PAM_AUTH_ERR); /* compare passwords */ if ((!pwd->pw_passwd[0] && (flags & PAM_DISALLOW_NULL_AUTHTOK)) || (crypt_password = crypt(password, pwd->pw_passwd)) == NULL || strcmp(crypt_password, pwd->pw_passwd) != 0) pam_err = PAM_AUTH_ERR; else pam_err = PAM_SUCCESS; #ifndef OPENPAM free(password); #endif return (pam_err); } PAM_EXTERN int pam_sm_setcred(pam_handle_t *pamh, int flags, int argc, const char *argv[]) { (void)pamh; (void)flags; (void)argc; (void)argv; return (PAM_SUCCESS); } PAM_EXTERN int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, const char *argv[]) { (void)pamh; (void)flags; (void)argc; (void)argv; return (PAM_SUCCESS); } PAM_EXTERN int pam_sm_open_session(pam_handle_t *pamh, int flags, int argc, const char *argv[]) { (void)pamh; (void)flags; (void)argc; (void)argv; return (PAM_SUCCESS); } PAM_EXTERN int pam_sm_close_session(pam_handle_t *pamh, int flags, int argc, const char *argv[]) { (void)pamh; (void)flags; (void)argc; (void)argv; return (PAM_SUCCESS); } PAM_EXTERN int pam_sm_chauthtok(pam_handle_t *pamh, int flags, int argc, const char *argv[]) { (void)pamh; (void)flags; (void)argc; (void)argv; return (PAM_SERVICE_ERR); } #ifdef PAM_MODULE_ENTRY PAM_MODULE_ENTRY("pam_unix"); #endif
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