usr.bin/chpass/pw_yp.h

   1 /*
   2  * Copyright (c) 1995
   3  *      Bill Paul <wpaul@ctr.columbia.edu>.  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  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by Bill Paul.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * NIS interface routines for chpass
  33  *
  34  * Written by Bill Paul <wpaul@ctr.columbia.edu>
  35  * Center for Telecommunications Research
  36  * Columbia University, New York City
  37  *
  38  * $FreeBSD: src/usr.bin/chpass/pw_yp.h,v 1.7.2.1 2002/02/15 00:46:56 des Exp $
  39  * $DragonFly: src/usr.bin/chpass/pw_yp.h,v 1.2 2003/06/17 06:29:25 dillon Exp $
  40  */
  41
  42 #ifdef YP
  43 #include <sys/types.h>
  44 #include <rpc/rpc.h>
  45 #include <rpc/auth.h>
  46 #include <rpc/auth_unix.h>
  47 /* Four possible return codes from use_yp() */
  48 #define USER_UNKNOWN 0
  49 #define USER_YP_ONLY 1
  50 #define USER_LOCAL_ONLY 2
  51 #define USER_YP_AND_LOCAL 3
  52
  53 extern  int             force_old;
  54 extern  int             _use_yp;
  55 extern  int             suser_override;
  56 extern  struct passwd   local_password;
  57 extern  struct passwd   yp_password;
  58 extern  void            copy_yp_pass(char *, int, int);
  59 extern  char            *yp_domain;
  60 extern  char            *yp_server;
  61 extern  void            yp_submit(struct passwd *);
  62 extern  int             use_yp(char *, uid_t, int);
  63 extern  char            *get_yp_master(int);
  64 extern  int             yp_in_pw_file;
  65
  66 /*
  67  * Yucky.
  68  */
  69 #define GETPWUID(X) \
  70         _use_yp = use_yp(NULL, X, 1);                                   \
  71                                                                         \
  72         if (_use_yp == USER_UNKNOWN) {                                  \
  73                 errx(1, "unknown user: uid %u", X);                     \
  74         }                                                               \
  75                                                                         \
  76         if (_use_yp == USER_YP_ONLY) {                                  \
  77                 if (!force_local) {                                     \
  78                         _use_yp = 1;                                    \
  79                         pw = (struct passwd *)&yp_password;             \
  80                 } else                                                  \
  81                         errx(1, "unknown local user: uid %u", X);       \
  82         } else if (_use_yp == USER_LOCAL_ONLY) {                        \
  83                 if (!force_yp) {                                        \
  84                         _use_yp = 0;                                    \
  85                         pw = (struct passwd *)&local_password;          \
  86                 } else                                                  \
  87                         errx(1, "unknown NIS user: uid %u", X);         \
  88         } else if (_use_yp == USER_YP_AND_LOCAL) {                      \
  89                 if (!force_local && (force_yp || yp_in_pw_file)) {      \
  90                         _use_yp = 1;                                    \
  91                         pw = (struct passwd *)&yp_password;             \
  92                 } else {                                                \
  93                         _use_yp = 0;                                    \
  94                         pw = (struct passwd *)&local_password;          \
  95                 }                                                       \
  96         }
  97
  98 #define GETPWNAM(X) \
  99         _use_yp = use_yp(X, 0, 0);                                      \
 100                                                                         \
 101         if (_use_yp == USER_UNKNOWN) {                                  \
 102                 errx(1, "unknown user: %s", X);                         \
 103         }                                                               \
 104                                                                         \
 105         if (_use_yp == USER_YP_ONLY) {                                  \
 106                 if (!force_local) {                                     \
 107                         _use_yp = 1;                                    \
 108                         pw = (struct passwd *)&yp_password;             \
 109                 } else                                                  \
 110                         errx(1, "unknown local user: %s.", X);          \
 111         } else if (_use_yp == USER_LOCAL_ONLY) {                        \
 112                 if (!force_yp) {                                        \
 113                         _use_yp = 0;                                    \
 114                         pw = (struct passwd *)&local_password;          \
 115                 } else                                                  \
 116                         errx(1, "unknown NIS user: %s.", X);            \
 117         } else if (_use_yp == USER_YP_AND_LOCAL) {                      \
 118                 if (!force_local && (force_yp || yp_in_pw_file)) {      \
 119                         _use_yp = 1;                                    \
 120                         pw = (struct passwd *)&yp_password;             \
 121                 } else {                                                \
 122                         _use_yp = 0;                                    \
 123                         pw = (struct passwd *)&local_password;          \
 124                 }                                                       \
 125         }
 126
 127 #endif /* YP */