99f1ebbac6
r285396,r285398,r285401,r285403,r285405,r285406,r285408,r285409,r285411, r285412,r285413,r285415,r285418,r285430,r285433,r285434,r285442,r285948, r285984,r285985,r285989,r285996,r285997,r286045,r286047,r286066,r286150, r286151,r286152,r286154,r286155,r286156,r286157,r286173,r286196,r286197, r286198,r286199,r286200,r286201,r286202,r286203,r286204,r286210,r286211, r286217,r286218,r286258,r286259,r286341,r286775,r286982,r286986,r286991, r286993 Validate most pw inputs. Rewrite the way parsing sub arguments is made to simplify code and improve maintenability Add -y (NIS) to userdel/usermod pw userdel -r <rootdir> now deletes directories in the rootdir Only parse pw.conf when needed Reject usermod and userdel if the user concerned is not on the user database supposed to be manipulated
150 lines
3.3 KiB
C
150 lines
3.3 KiB
C
/*-
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* Copyright (C) 1996
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* David L. Nugent. 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 DAVID L. NUGENT 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 DAVID L. NUGENT 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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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <pwd.h>
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#include <libutil.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "pwupd.h"
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char *
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getpwpath(char const * file)
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{
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static char pathbuf[MAXPATHLEN];
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snprintf(pathbuf, sizeof pathbuf, "%s/%s", conf.etcpath, file);
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return (pathbuf);
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}
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static int
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pwdb_check(void)
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{
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int i = 0;
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pid_t pid;
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char *args[10];
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args[i++] = _PATH_PWD_MKDB;
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args[i++] = "-C";
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if (strcmp(conf.etcpath, _PATH_PWD) != 0) {
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args[i++] = "-d";
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args[i++] = conf.etcpath;
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}
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args[i++] = getpwpath(_MASTERPASSWD);
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args[i] = NULL;
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if ((pid = fork()) == -1) /* Error (errno set) */
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i = errno;
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else if (pid == 0) { /* Child */
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execv(args[0], args);
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_exit(1);
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} else { /* Parent */
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waitpid(pid, &i, 0);
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if (WEXITSTATUS(i))
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i = EIO;
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}
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return (i);
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}
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static int
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pw_update(struct passwd * pwd, char const * user)
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{
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struct passwd *pw = NULL;
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struct passwd *old_pw = NULL;
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int rc, pfd, tfd;
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if ((rc = pwdb_check()) != 0)
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return (rc);
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if (pwd != NULL)
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pw = pw_dup(pwd);
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if (user != NULL)
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old_pw = GETPWNAM(user);
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if (pw_init(conf.etcpath, NULL))
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err(1, "pw_init()");
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if ((pfd = pw_lock()) == -1) {
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pw_fini();
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err(1, "pw_lock()");
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}
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if ((tfd = pw_tmp(-1)) == -1) {
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pw_fini();
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err(1, "pw_tmp()");
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}
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if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
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pw_fini();
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err(1, "pw_copy()");
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}
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/*
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* in case of deletion of a user, the whole database
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* needs to be regenerated
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*/
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if (pw_mkdb(pw != NULL ? pw->pw_name : NULL) == -1) {
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pw_fini();
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err(1, "pw_mkdb()");
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}
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free(pw);
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pw_fini();
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return (0);
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}
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int
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addpwent(struct passwd * pwd)
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{
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return (pw_update(pwd, NULL));
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}
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int
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chgpwent(char const * login, struct passwd * pwd)
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{
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return (pw_update(pwd, login));
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}
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int
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delpwent(struct passwd * pwd)
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{
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return (pw_update(NULL, pwd->pw_name));
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}
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