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des 2002-05-08 01:35:22 +00:00
parent 85be496b99
commit 67faa788b7
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38
usr.bin/passwd/extern.h
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/*
* Copyright (c) 1994
* 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.
*
* From: @(#)extern.h 8.1 (Berkeley) 4/2/94
* $FreeBSD$
*/
int krb_passwd(char *, char *, char *, char *);
int local_passwd(char *);

235
usr.bin/passwd/local_passwd.c
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/*-
* Copyright (c) 1990, 1993, 1994
* 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.
*/
#ifndef lint
static const char sccsid[] = "@(#)local_passwd.c 8.3 (Berkeley) 4/2/94";
#endif /* not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/time.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <pw_copy.h>
#include <pw_util.h>
#ifdef YP
#include <pw_yp.h>
#endif
#ifdef LOGGING
#include <syslog.h>
#endif
#ifdef LOGIN_CAP
#ifdef AUTH_NONE /* multiple defs :-( */
#undef AUTH_NONE
#endif
#include <login_cap.h>
#endif
#include "extern.h"
static uid_t uid;
int randinit;
char *tempname;
static unsigned char itoa64[] = /* 0 ... 63 => ascii - 64 */
"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
void
to64(s, v, n)
char *s;
long v;
int n;
{
while (--n >= 0) {
*s++ = itoa64[v&0x3f];
v >>= 6;
}
}
char *
getnewpasswd(pw, nis)
struct passwd *pw;
int nis;
{
int tries, min_length = 6;
int force_mix_case = 1;
char *p, *t;
#ifdef LOGIN_CAP
login_cap_t * lc;
#endif
char buf[_PASSWORD_LEN+1], salt[32];
struct timeval tv;
if (!nis)
(void)printf("Changing local password for %s.\n", pw->pw_name);
if (uid && pw->pw_passwd[0] &&
strcmp(crypt(getpass("Old password:"), pw->pw_passwd),
pw->pw_passwd)) {
errno = EACCES;
pw_error(NULL, 1, 1);
}
#ifdef LOGIN_CAP
/*
* Determine minimum password length, next password change date,
* and whether or not to force mixed case passwords.
* Note that even for NIS passwords, login_cap is still used.
*/
if ((lc = login_getpwclass(pw)) != NULL) {
time_t period;
/* minpasswordlen capablity */
min_length = (int)login_getcapnum(lc, "minpasswordlen",
min_length, min_length);
/* passwordtime capability */
period = login_getcaptime(lc, "passwordtime", 0, 0);
if (period > (time_t)0) {
pw->pw_change = time(NULL) + period;
}
/* mixpasswordcase capability */
force_mix_case = login_getcapbool(lc, "mixpasswordcase", 1);
}
#endif
for (buf[0] = '\0', tries = 0;;) {
p = getpass("New password:");
if (!*p) {
(void)printf("Password unchanged.\n");
pw_error(NULL, 0, 0);
}
if (strlen(p) < min_length && (uid != 0 || ++tries < 2)) {
(void)printf("Please enter a password at least %d characters in length.\n", min_length);
continue;
}
if (force_mix_case) {
for (t = p; *t && islower(*t); ++t);
if (!*t && (uid != 0 || ++tries < 2)) {
(void)printf("Please don't use an all-lower case password.\nUnusual capitalization, control characters or digits are suggested.\n");
continue;
}
}
(void)strcpy(buf, p);
if (!strcmp(buf, getpass("Retype new password:")))
break;
(void)printf("Mismatch; try again, EOF to quit.\n");
}
/* grab a random printable character that isn't a colon */
if (!randinit) {
randinit = 1;
srandomdev();
}
#ifdef NEWSALT
salt[0] = _PASSWORD_EFMT1;
to64(&salt[1], (long)(29 * 25), 4);
to64(&salt[5], random(), 4);
salt[9] = '\0';
#else
/* Make a good size salt for algoritms that can use it. */
gettimeofday(&tv,0);
#ifdef LOGIN_CAP
if (login_setcryptfmt(lc, "md5", NULL) == NULL)
pw_error("cannot set password cipher", 1, 1);
login_close(lc);
#else
(void)crypt_set_format("md5");
#endif
/* Salt suitable for anything */
to64(&salt[0], random(), 3);
to64(&salt[3], tv.tv_usec, 3);
to64(&salt[6], tv.tv_sec, 2);
to64(&salt[8], random(), 5);
to64(&salt[13], random(), 5);
to64(&salt[17], random(), 5);
to64(&salt[22], random(), 5);
salt[27] = '\0';
#endif
return (crypt(buf, salt));
}
int
local_passwd(uname)
char *uname;
{
struct passwd *pw;
int pfd, tfd;
if (!(pw = getpwnam(uname)))
errx(1, "unknown user %s", uname);
#ifdef YP
/* Use the right password information. */
pw = (struct passwd *)&local_password;
#endif
uid = getuid();
if (uid && uid != pw->pw_uid)
errx(1, "%s", strerror(EACCES));
pw_init();
/*
* Get the new password. Reset passwd change time to zero by
* default. If the user has a valid login class (or the default
* fallback exists), then the next password change date is set
* by getnewpasswd() according to the "passwordtime" capability
* if one has been specified.
*/
pw->pw_change = 0;
pw->pw_passwd = getnewpasswd(pw, 0);
pfd = pw_lock();
tfd = pw_tmp();
pw_copy(pfd, tfd, pw, NULL);
if (!pw_mkdb(uname))
pw_error((char *)NULL, 0, 1);
#ifdef LOGGING
syslog(LOG_DEBUG, "user %s changed their local password\n", uname);
#endif
return (0);
}

207
usr.bin/passwd/yp_passwd.c
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/*
* Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
* Copyright (c) 1994 Olaf Kirch <okir@monad.swb.de>
* Copyright (c) 1995 Bill Paul <wpaul@ctr.columbia.edu>
* 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. 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 ``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 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#ifdef YP
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netdb.h>
#include <time.h>
#include <sys/types.h>
#include <pwd.h>
#include <errno.h>
#include <unistd.h>
#include <limits.h>
#include <rpc/rpc.h>
#include <rpcsvc/yp_prot.h>
#include <rpcsvc/ypclnt.h>
#include <rpcsvc/yppasswd.h>
#include <pw_yp.h>
#include <err.h>
#include "yppasswd_private.h"
extern char *getnewpasswd(struct passwd *, int);
int
yp_passwd(char *user)
{
struct yppasswd yppasswd;
struct master_yppasswd master_yppasswd;
struct netconfig *nconf;
void *localhandle;
struct passwd *pw;
CLIENT *clnt;
struct rpc_err err;
char *master;
int *status = NULL;
uid_t uid;
nconf = NULL;
_use_yp = 1;
uid = getuid();
if ((master = get_yp_master(1)) == NULL) {
warnx("failed to find NIS master server");
return(1);
}
/*
* It is presumed that by the time we get here, use_yp()
* has been called and that we have verified that the user
* actually exists. This being the case, the yp_password
* stucture has already been filled in for us.
*/
/* Use the correct password */
pw = (struct passwd *)&yp_password;
if (pw->pw_uid != uid && uid != 0) {
warnx("only the super-user may change account information \
for other users");
return(1);
}
pw->pw_change = 0;
/* Initialize password information */
if (suser_override) {
master_yppasswd.newpw.pw_passwd = strdup(pw->pw_passwd);
master_yppasswd.newpw.pw_name = strdup(pw->pw_name);
master_yppasswd.newpw.pw_uid = pw->pw_uid;
master_yppasswd.newpw.pw_gid = pw->pw_gid;
master_yppasswd.newpw.pw_expire = pw->pw_expire;
master_yppasswd.newpw.pw_change = pw->pw_change;
master_yppasswd.newpw.pw_fields = pw->pw_fields;
master_yppasswd.newpw.pw_gecos = strdup(pw->pw_gecos);
master_yppasswd.newpw.pw_dir = strdup(pw->pw_dir);
master_yppasswd.newpw.pw_shell = strdup(pw->pw_shell);
master_yppasswd.newpw.pw_class = pw->pw_class != NULL ?
strdup(pw->pw_class) : "";
master_yppasswd.oldpass = "";
master_yppasswd.domain = yp_domain;
} else {
yppasswd.newpw.pw_passwd = strdup(pw->pw_passwd);
yppasswd.newpw.pw_name = strdup(pw->pw_name);
yppasswd.newpw.pw_uid = pw->pw_uid;
yppasswd.newpw.pw_gid = pw->pw_gid;
yppasswd.newpw.pw_gecos = strdup(pw->pw_gecos);
yppasswd.newpw.pw_dir = strdup(pw->pw_dir);
yppasswd.newpw.pw_shell = strdup(pw->pw_shell);
yppasswd.oldpass = "";
}
if (suser_override)
printf("Changing NIS password for %s on %s in domain %s.\n",
pw->pw_name, master, yp_domain);
else
printf("Changing NIS password for %s on %s.\n",
pw->pw_name, master);
/* Get old password */
if (pw->pw_passwd[0] && !suser_override) {
yppasswd.oldpass = strdup(getpass("Old Password: "));
if (strcmp(crypt(yppasswd.oldpass, pw->pw_passwd),
pw->pw_passwd)) {
errx(1, "sorry");
}
}
if (suser_override) {
if ((master_yppasswd.newpw.pw_passwd = getnewpasswd(pw, 1)) == NULL)
return(1);
} else {
if ((yppasswd.newpw.pw_passwd = getnewpasswd(pw, 1)) == NULL)
return(1);
}
if (suser_override) {
localhandle = setnetconfig();
while ((nconf = getnetconfig(localhandle)) != NULL) {
if (nconf->nc_protofmly != NULL &&
strcmp(nconf->nc_protofmly, NC_LOOPBACK) == 0)
break;
}
if (nconf == NULL) {
warnx("getnetconfig: %s", nc_sperror());
return(1);
}
if ((clnt = clnt_tp_create(NULL, MASTER_YPPASSWDPROG,
MASTER_YPPASSWDVERS, nconf)) == NULL) {
warnx("failed to contact rpc.yppasswdd on host %s: %s",
master, clnt_spcreateerror(""));
endnetconfig(localhandle);
return(1);
}
endnetconfig(localhandle);
} else {
if ((clnt = clnt_create(master, YPPASSWDPROG,
YPPASSWDVERS, "udp")) == NULL) {
warnx("failed to contact rpc.yppasswdd on host %s: %s",
master, clnt_spcreateerror(""));
return(1);
}
}
/*
* The yppasswd.x file said `unix authentication required',
* so I added it. This is the only reason it is in here.
* My yppasswdd doesn't use it, but maybe some others out there
* do. --okir
*/
clnt->cl_auth = authunix_create_default();
if (suser_override)
status = yppasswdproc_update_master_1(&master_yppasswd, clnt);
else
status = yppasswdproc_update_1(&yppasswd, clnt);
clnt_geterr(clnt, &err);
auth_destroy(clnt->cl_auth);
clnt_destroy(clnt);
if (err.re_status != RPC_SUCCESS || status == NULL || *status) {
errx(1, "failed to change NIS password: %s",
clnt_sperrno(err.re_status));
}
printf("\nNIS password has%s been changed on %s.\n",
(err.re_status != RPC_SUCCESS || status == NULL || *status) ?
" not" : "", master);
return ((err.re_status || status == NULL || *status));
}
#endif /* YP */