diff options
Diffstat (limited to 'contrib/bind9/lib/bind/irs/lcl_pw.c')
| -rw-r--r-- | contrib/bind9/lib/bind/irs/lcl_pw.c | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/contrib/bind9/lib/bind/irs/lcl_pw.c b/contrib/bind9/lib/bind/irs/lcl_pw.c deleted file mode 100644 index dc31dd2296d6..000000000000 --- a/contrib/bind9/lib/bind/irs/lcl_pw.c +++ /dev/null @@ -1,308 +0,0 @@ -/* - * Copyright (c) 1989, 1993, 1995 - * The Regents of the University of California. 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. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. - */ - -/* - * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") - * Portions Copyright (c) 1996,1999 by Internet Software Consortium. - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT - * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#if defined(LIBC_SCCS) && !defined(lint) -static const char rcsid[] = "$Id: lcl_pw.c,v 1.1.206.1 2004/03/09 08:33:38 marka Exp $"; -#endif /* LIBC_SCCS and not lint */ - -/* Extern */ - -#include "port_before.h" - -#ifndef WANT_IRS_PW -static int __bind_irs_pw_unneeded; -#else - -#include <sys/param.h> -#include <sys/types.h> -#include <netinet/in.h> -#include <arpa/nameser.h> -#include <resolv.h> - -#include <db.h> -#include <errno.h> -#include <fcntl.h> -#include <limits.h> -#include <pwd.h> -#include <stdlib.h> -#include <string.h> -#include <syslog.h> -#include <utmp.h> -#include <unistd.h> - -#include <isc/memcluster.h> -#include <irs.h> - -#include "port_after.h" - -#include "irs_p.h" -#include "lcl_p.h" - -/* - * The lookup techniques and data extraction code here must be kept - * in sync with that in `pwd_mkdb'. - */ - - -/* Types */ - -struct pvt { - struct passwd passwd; /* password structure */ - DB *pw_db; /* password database */ - int pw_keynum; /* key counter */ - int warned; - u_int max; - char * line; -}; - -/* Forward */ - -static void pw_close(struct irs_pw *); -static struct passwd * pw_next(struct irs_pw *); -static struct passwd * pw_byname(struct irs_pw *, const char *); -static struct passwd * pw_byuid(struct irs_pw *, uid_t); -static void pw_rewind(struct irs_pw *); -static void pw_minimize(struct irs_pw *); - -static int initdb(struct pvt *); -static int hashpw(struct irs_pw *, DBT *); - -/* Public */ -struct irs_pw * -irs_lcl_pw(struct irs_acc *this) { - struct irs_pw *pw; - struct pvt *pvt; - - UNUSED(this); - - if (!(pw = memget(sizeof *pw))) { - errno = ENOMEM; - return (NULL); - } - memset(pw, 0x5e, sizeof *pw); - if (!(pvt = memget(sizeof *pvt))) { - free(pw); - errno = ENOMEM; - return (NULL); - } - memset(pvt, 0, sizeof *pvt); - pw->private = pvt; - pw->close = pw_close; - pw->next = pw_next; - pw->byname = pw_byname; - pw->byuid = pw_byuid; - pw->rewind = pw_rewind; - pw->minimize = pw_minimize; - pw->res_get = NULL; - pw->res_set = NULL; - return (pw); -} - -/* Methods */ - -static void -pw_close(struct irs_pw *this) { - struct pvt *pvt = (struct pvt *)this->private; - - if (pvt->pw_db) { - (void)(pvt->pw_db->close)(pvt->pw_db); - pvt->pw_db = NULL; - } - if (pvt->line) - memput(pvt->line, pvt->max); - memput(pvt, sizeof *pvt); - memput(this, sizeof *this); -} - -static struct passwd * -pw_next(struct irs_pw *this) { - struct pvt *pvt = (struct pvt *)this->private; - - DBT key; - char bf[sizeof(pvt->pw_keynum) + 1]; - - if (!initdb(pvt)) - return (NULL); - - ++pvt->pw_keynum; - bf[0] = _PW_KEYBYNUM; - memcpy(bf + 1, (char *)&pvt->pw_keynum, sizeof(pvt->pw_keynum)); - key.data = (u_char *)bf; - key.size = sizeof(pvt->pw_keynum) + 1; - return (hashpw(this, &key) ? &pvt->passwd : NULL); -} - -static struct passwd * -pw_byname(struct irs_pw *this, const char *name) { - struct pvt *pvt = (struct pvt *)this->private; - DBT key; - int len, rval; - char bf[UT_NAMESIZE + 1]; - - if (!initdb(pvt)) - return (NULL); - - bf[0] = _PW_KEYBYNAME; - len = strlen(name); - memcpy(bf + 1, name, MIN(len, UT_NAMESIZE)); - key.data = (u_char *)bf; - key.size = len + 1; - rval = hashpw(this, &key); - - return (rval ? &pvt->passwd : NULL); -} - - -static struct passwd * -pw_byuid(struct irs_pw *this, uid_t uid) { - struct pvt *pvt = (struct pvt *)this->private; - DBT key; - int keyuid, rval; - char bf[sizeof(keyuid) + 1]; - - if (!initdb(pvt)) - return (NULL); - - bf[0] = _PW_KEYBYUID; - keyuid = uid; - memcpy(bf + 1, &keyuid, sizeof(keyuid)); - key.data = (u_char *)bf; - key.size = sizeof(keyuid) + 1; - rval = hashpw(this, &key); - - return (rval ? &pvt->passwd : NULL); -} - -static void -pw_rewind(struct irs_pw *this) { - struct pvt *pvt = (struct pvt *)this->private; - - pvt->pw_keynum = 0; -} - -static void -pw_minimize(struct irs_pw *this) { - struct pvt *pvt = (struct pvt *)this->private; - - if (pvt->pw_db != NULL) { - (void) (*pvt->pw_db->close)(pvt->pw_db); - pvt->pw_db = NULL; - } -} - -/* Private. */ - -static int -initdb(struct pvt *pvt) { - const char *p; - - if (pvt->pw_db) { - if (lseek((*pvt->pw_db->fd)(pvt->pw_db), 0L, SEEK_CUR) >= 0L) - return (1); - else - (void) (*pvt->pw_db->close)(pvt->pw_db); - } - pvt->pw_db = dbopen((p = _PATH_SMP_DB), O_RDONLY, 0, DB_HASH, NULL); - if (!pvt->pw_db) - pvt->pw_db = dbopen((p =_PATH_MP_DB), O_RDONLY, - 0, DB_HASH, NULL); - if (pvt->pw_db) - return (1); - if (!pvt->warned) { - syslog(LOG_ERR, "%s: %m", p); - pvt->warned++; - } - return (0); -} - -static int -hashpw(struct irs_pw *this, DBT *key) { - struct pvt *pvt = (struct pvt *)this->private; - char *p, *t, *l; - DBT data; - - if ((pvt->pw_db->get)(pvt->pw_db, key, &data, 0)) - return (0); - p = (char *)data.data; - if (data.size > pvt->max) { - size_t newlen = pvt->max + 1024; - char *p = memget(newlen); - if (p == NULL) { - return (0); - } - if (pvt->line != NULL) { - memcpy(p, pvt->line, pvt->max); - memput(pvt->line, pvt->max); - } - pvt->max = newlen; - pvt->line = p; - } - - /* THIS CODE MUST MATCH THAT IN pwd_mkdb. */ - t = pvt->line; - l = pvt->line + pvt->max; -#define EXPAND(e) if ((e = t) == NULL) return (0); else \ - do if (t >= l) return (0); while ((*t++ = *p++) != '\0') -#define SCALAR(v) if (t + sizeof v >= l) return (0); else \ - (memmove(&(v), p, sizeof v), p += sizeof v) - EXPAND(pvt->passwd.pw_name); - EXPAND(pvt->passwd.pw_passwd); - SCALAR(pvt->passwd.pw_uid); - SCALAR(pvt->passwd.pw_gid); - SCALAR(pvt->passwd.pw_change); - EXPAND(pvt->passwd.pw_class); - EXPAND(pvt->passwd.pw_gecos); - EXPAND(pvt->passwd.pw_dir); - EXPAND(pvt->passwd.pw_shell); - SCALAR(pvt->passwd.pw_expire); - return (1); -} - -#endif /* WANT_IRS_PW */ |