pw/pw_nis.c

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