pw/pw_nis.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (C) 1996
   5  *      David L. Nugent.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef lint
  30 static const char rcsid[] =
  31   "$FreeBSD$";
  32 #endif /* not lint */
  33
  34 #include <sys/types.h>
  35
  36 #include <err.h>
  37 #include <pwd.h>
  38 #include <libutil.h>
  39 #include <unistd.h>
  40
  41 #include "pw.h"
  42
  43 static int
  44 pw_nisupdate(const char * path, struct passwd * pwd, char const * user)
  45 {
  46         int pfd, tfd;
  47         struct passwd *pw = NULL;
  48         struct passwd *old_pw = NULL;
  49
  50         printf("===> %s\n", path);
  51         if (pwd != NULL)
  52                 pw = pw_dup(pwd);
  53
  54         if (user != NULL)
  55                 old_pw = GETPWNAM(user);
  56
  57         if (pw_init(NULL, path))
  58                 err(1,"pw_init()");
  59         if ((pfd = pw_lock()) == -1) {
  60                 pw_fini();
  61                 err(1, "pw_lock()");
  62         }
  63         if ((tfd = pw_tmp(-1)) == -1) {
  64                 pw_fini();
  65                 err(1, "pw_tmp()");
  66         }
  67         if (pw_copy(pfd, tfd, pw, old_pw) == -1) {
  68                 pw_fini();
  69                 close(tfd);
  70                 err(1, "pw_copy()");
  71         }
  72         fsync(tfd);
  73         close(tfd);
  74         if (chmod(pw_tempname(), 0644) == -1)
  75                 err(1, "chmod()");
  76         if (rename(pw_tempname(), path) == -1)
  77                 err(1, "rename()");
  78
  79         free(pw);
  80         pw_fini();
  81
  82         return (0);
  83 }
  84
  85 int
  86 addnispwent(const char *path, struct passwd * pwd)
  87 {
  88         return pw_nisupdate(path, pwd, NULL);
  89 }
  90
  91 int
  92 chgnispwent(const char *path, char const * login, struct passwd * pwd)
  93 {
  94         return pw_nisupdate(path, pwd, login);
  95 }
  96
  97 int
  98 delnispwent(const char *path, const char *login)
  99 {
 100         return pw_nisupdate(path, NULL, login);
 101 }