pwd/putpwent.c

   1 /* Copyright (C) 1991, 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <stdio.h>
  21 #include <pwd.h>
  22
  23 #define _S(x)   x ? x : ""
  24
  25 /* Write an entry to the given stream.
  26    This must know the format of the password file.  */
  27 int
  28 putpwent (p, stream)
  29      const struct passwd *p;
  30      FILE *stream;
  31 {
  32   if (p == NULL || stream == NULL)
  33     {
  34       __set_errno (EINVAL);
  35       return -1;
  36     }
  37
  38   if (fprintf (stream, "%s:%s:%lu:%lu:%s:%s:%s\n",
  39                p->pw_name, _S (p->pw_passwd),
  40                (unsigned long int) p->pw_uid, (unsigned long int) p->pw_gid,
  41                _S (p->pw_gecos), _S (p->pw_dir), _S (p->pw_shell)) < 0)
  42     return -1;
  43
  44   return 0;
  45 }