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/* $OpenBSD: login_passwd.c,v 1.14 2015/11/19 18:37:01 millert Exp $ */ |
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/*- |
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* Copyright (c) 2001 Hans Insulander <hin@openbsd.org>. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include "common.h" |
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int |
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pwd_login(char *username, char *password, char *wheel, int lastchance, |
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char *class) |
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{ |
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struct passwd *pwd; |
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size_t plen; |
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char *goodhash = NULL; |
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int passok = 0; |
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if (wheel != NULL && strcmp(wheel, "yes") != 0) { |
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fprintf(back, BI_VALUE " errormsg %s\n", |
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auth_mkvalue("you are not in group wheel")); |
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fprintf(back, BI_REJECT "\n"); |
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return (AUTH_FAILED); |
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} |
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if (password == NULL) |
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return (AUTH_FAILED); |
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pwd = getpwnam_shadow(username); |
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if (pwd) |
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goodhash = pwd->pw_passwd; |
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setpriority(PRIO_PROCESS, 0, -4); |
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if (pledge("wpath stdio flock rpath", NULL) == -1) { |
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syslog(LOG_ERR, "pledge: %m"); |
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return (AUTH_FAILED); |
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} |
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if (crypt_checkpass(password, goodhash) == 0) |
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passok = 1; |
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plen = strlen(password); |
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explicit_bzero(password, plen); |
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if (!passok) |
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return (AUTH_FAILED); |
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if (login_check_expire(back, pwd, class, lastchance) == 0) |
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fprintf(back, BI_AUTH "\n"); |
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else |
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return (AUTH_FAILED); |
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return (AUTH_OK); |
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} |