120253Sjoerg/*- 220302Sjoerg * Copyright (C) 1996 320302Sjoerg * David L. Nugent. All rights reserved. 420253Sjoerg * 520253Sjoerg * Redistribution and use in source and binary forms, with or without 620253Sjoerg * modification, are permitted provided that the following conditions 720253Sjoerg * are met: 820253Sjoerg * 1. Redistributions of source code must retain the above copyright 920302Sjoerg * notice, this list of conditions and the following disclaimer. 1020253Sjoerg * 2. Redistributions in binary form must reproduce the above copyright 1120253Sjoerg * notice, this list of conditions and the following disclaimer in the 1220253Sjoerg * documentation and/or other materials provided with the distribution. 1320253Sjoerg * 1420302Sjoerg * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND 1520253Sjoerg * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1620253Sjoerg * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1720302Sjoerg * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE 1820253Sjoerg * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1920253Sjoerg * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2020253Sjoerg * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2120253Sjoerg * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2220253Sjoerg * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2320253Sjoerg * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2420253Sjoerg * SUCH DAMAGE. 2520253Sjoerg */ 2620253Sjoerg 2730259Scharnier#ifndef lint 2830259Scharnierstatic const char rcsid[] = 2950479Speter "$FreeBSD$"; 3030259Scharnier#endif /* not lint */ 3130259Scharnier 3220253Sjoerg#include <stdio.h> 3320253Sjoerg#include <stdlib.h> 3420253Sjoerg#include <string.h> 3520253Sjoerg#include <unistd.h> 3620253Sjoerg#include <stdarg.h> 37242349Sbapt#include <pwd.h> 38242349Sbapt#include <libutil.h> 3920253Sjoerg#include <errno.h> 40242349Sbapt#include <err.h> 4120253Sjoerg#include <sys/types.h> 4220253Sjoerg#include <sys/stat.h> 4344229Sdavidn#include <sys/param.h> 4420253Sjoerg#include <sys/wait.h> 4520253Sjoerg 4620253Sjoerg#include "pwupd.h" 4720253Sjoerg 4820267Sjoerg#define HAVE_PWDB_C 1 4961758Sdavidn#define HAVE_PWDB_U 1 5020267Sjoerg 5144229Sdavidnstatic char pathpwd[] = _PATH_PWD; 5244229Sdavidnstatic char * pwpath = pathpwd; 5344229Sdavidn 5444229Sdavidnint 5544229Sdavidnsetpwdir(const char * dir) 5644229Sdavidn{ 5744229Sdavidn if (dir == NULL) 5844229Sdavidn return -1; 59243896Seadler else 60243896Seadler pwpath = strdup(dir); 61243896Seadler if (pwpath == NULL) 62243896Seadler return -1; 6344229Sdavidn return 0; 6444229Sdavidn} 6544229Sdavidn 6644229Sdavidnchar * 6744229Sdavidngetpwpath(char const * file) 6844229Sdavidn{ 6944229Sdavidn static char pathbuf[MAXPATHLEN]; 7044229Sdavidn 7144229Sdavidn snprintf(pathbuf, sizeof pathbuf, "%s/%s", pwpath, file); 7244229Sdavidn return pathbuf; 7344229Sdavidn} 7444229Sdavidn 75242349Sbaptstatic int 7620253Sjoergpwdb(char *arg,...) 7720253Sjoerg{ 7820253Sjoerg int i = 0; 7920253Sjoerg pid_t pid; 8020253Sjoerg va_list ap; 8144229Sdavidn char *args[10]; 8220253Sjoerg 8320253Sjoerg args[i++] = _PATH_PWD_MKDB; 8420253Sjoerg va_start(ap, arg); 8520253Sjoerg while (i < 6 && arg != NULL) { 8620253Sjoerg args[i++] = arg; 8720253Sjoerg arg = va_arg(ap, char *); 8820253Sjoerg } 8944229Sdavidn if (pwpath != pathpwd) { 9044229Sdavidn args[i++] = "-d"; 9144229Sdavidn args[i++] = pwpath; 9244229Sdavidn } 9344229Sdavidn args[i++] = getpwpath(_MASTERPASSWD); 9420253Sjoerg args[i] = NULL; 9520253Sjoerg 9620253Sjoerg if ((pid = fork()) == -1) /* Error (errno set) */ 9752502Sdavidn i = errno; 9820253Sjoerg else if (pid == 0) { /* Child */ 9920253Sjoerg execv(args[0], args); 10020253Sjoerg _exit(1); 10120253Sjoerg } else { /* Parent */ 10220253Sjoerg waitpid(pid, &i, 0); 10352502Sdavidn if (WEXITSTATUS(i)) 10452502Sdavidn i = EIO; 10520253Sjoerg } 106241021Skevlo va_end(ap); 10720253Sjoerg return i; 10820253Sjoerg} 10920253Sjoerg 11020253Sjoergstatic int 111242349Sbaptpw_update(struct passwd * pwd, char const * user) 11220253Sjoerg{ 11320253Sjoerg int rc = 0; 11420253Sjoerg 11520253Sjoerg /* 11620253Sjoerg * First, let's check the see if the database is alright 11733259Swosch * Note: -C is only available in FreeBSD 2.2 and above 11820253Sjoerg */ 11920267Sjoerg#ifdef HAVE_PWDB_C 120180565Sjhb rc = pwdb("-C", (char *)NULL); /* Check only */ 121180565Sjhb if (rc == 0) { 12220267Sjoerg#else 12333259Swosch { /* No -C */ 12420267Sjoerg#endif 125242349Sbapt int pfd, tfd; 126242349Sbapt struct passwd *pw = NULL; 127242349Sbapt struct passwd *old_pw = NULL; 12820253Sjoerg 129242349Sbapt if (pwd != NULL) 130242349Sbapt pw = pw_dup(pwd); 13120253Sjoerg 132242349Sbapt if (user != NULL) 133242349Sbapt old_pw = GETPWNAM(user); 13452502Sdavidn 135242349Sbapt if (pw_init(pwpath, NULL)) 136242349Sbapt err(1, "pw_init()"); 137242349Sbapt if ((pfd = pw_lock()) == -1) { 138242349Sbapt pw_fini(); 139242349Sbapt err(1, "pw_lock()"); 14020253Sjoerg } 141242349Sbapt if ((tfd = pw_tmp(-1)) == -1) { 142242349Sbapt pw_fini(); 143242349Sbapt err(1, "pw_tmp()"); 144242349Sbapt } 145242349Sbapt if (pw_copy(pfd, tfd, pw, old_pw) == -1) { 146242349Sbapt pw_fini(); 147242349Sbapt err(1, "pw_copy()"); 148242349Sbapt } 149244711Sbapt /* 150244711Sbapt * in case of deletion of a user, the whole database 151244711Sbapt * needs to be regenerated 152244711Sbapt */ 153244711Sbapt if (pw_mkdb(pw != NULL ? user : NULL) == -1) { 154242349Sbapt pw_fini(); 155242349Sbapt err(1, "pw_mkdb()"); 156242349Sbapt } 157242349Sbapt free(pw); 158242349Sbapt pw_fini(); 15920253Sjoerg } 160242349Sbapt return 0; 16120253Sjoerg} 16220253Sjoerg 16320253Sjoergint 16420253Sjoergaddpwent(struct passwd * pwd) 16520253Sjoerg{ 166242349Sbapt return pw_update(pwd, NULL); 16720253Sjoerg} 16820253Sjoerg 16920253Sjoergint 17020253Sjoergchgpwent(char const * login, struct passwd * pwd) 17120253Sjoerg{ 172242349Sbapt return pw_update(pwd, login); 17320253Sjoerg} 17420253Sjoerg 17520253Sjoergint 17620253Sjoergdelpwent(struct passwd * pwd) 17720253Sjoerg{ 178242349Sbapt char login[MAXLOGNAME]; 179242349Sbapt 180242349Sbapt strlcpy(login, pwd->pw_name, MAXLOGNAME); 181242349Sbapt return pw_update(NULL, login); 18220253Sjoerg} 183