src/getpwuid.h

   1 ///
   2 /// \file       getpwuid.h
   3 ///             Header for getpwduid*() calls, for systems that don't have an equivalent.
   4 ///
   5
   6 /*
   7     Copyright (C) 2007-2013, Net Direct Inc. (http://www.netdirect.ca/)
   8     Portions Copyright (C) 2011, RealVNC Ltd.
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  18
  19     See the GNU General Public License in the COPYING file at the
  20     root directory of this project for more details.
  21 */
  22
  23 #ifndef __BARRY_GETPWUID_H__
  24 #define __BARRY_GETPWUID_H__
  25
  26 #include "config.h"             // getpwuid.h is not installed, so this is safe
  27 #include <sys/types.h>
  28
  29 #ifdef HAVE_GETPWUID
  30 // System supports pwd so just include the system headers
  31 #include <pwd.h>
  32
  33 #else
  34
  35 // so define our own version...
  36 #ifdef __cplusplus
  37 extern "C" {
  38 #endif
  39 struct barry_passwd {
  40         char   *pw_name;       /* username */
  41         char   *pw_passwd;     /* user password */
  42         uid_t   pw_uid;        /* user ID */
  43         gid_t   pw_gid;        /* group ID */
  44         char   *pw_gecos;      /* real name */
  45         char   *pw_dir;        /* home directory */
  46         char   *pw_shell;      /* shell program */
  47 };
  48
  49 struct barry_passwd *barry_getpwuid(uid_t uid);
  50 int barry_getpwuid_r(uid_t uid, struct barry_passwd *pwd,
  51                    char *buf, size_t buflen, struct barry_passwd **result);
  52
  53 #ifdef __cplusplus
  54 }
  55 #endif
  56
  57 // and override the system's names so we call our own
  58 #define passwd barry_passwd
  59 #define getpwuid(u) barry_getpwuid(u)
  60 #define getpwuid_r(u, p, b, l, r) barry_getpwuid_r(u, p, b, l, r)
  61
  62 #endif // !HAVE_GETPWDUID
  63
  64 #endif  // __BARRY_GETPWUID_H__
  65