shadow/putspent.c

   1 /* Copyright (C) 1991, 1992, 1996-1998, 2011 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 <stdio.h>
  20 #include <shadow.h>
  21
  22 #define flockfile(s) _IO_flockfile (s)
  23 #define funlockfile(s) _IO_funlockfile (s)
  24
  25 #define _S(x)   x ? x : ""
  26
  27
  28 /* Write an entry to the given stream.
  29    This must know the format of the password file.  */
  30 int
  31 putspent (const struct spwd *p, FILE *stream)
  32 {
  33   int errors = 0;
  34
  35   flockfile (stream);
  36
  37   if (fprintf (stream, "%s:%s:", p->sp_namp, _S (p->sp_pwdp)) < 0)
  38     ++errors;
  39
  40   if ((p->sp_lstchg != (long int) -1
  41        && fprintf (stream, "%ld:", p->sp_lstchg) < 0)
  42       || (p->sp_lstchg == (long int) -1
  43           && putc_unlocked (':', stream) == EOF))
  44     ++errors;
  45
  46   if ((p->sp_min != (long int) -1
  47        && fprintf (stream, "%ld:", p->sp_min) < 0)
  48       || (p->sp_min == (long int) -1
  49           && putc_unlocked (':', stream) == EOF))
  50     ++errors;
  51
  52   if ((p->sp_max != (long int) -1
  53        && fprintf (stream, "%ld:", p->sp_max) < 0)
  54       || (p->sp_max == (long int) -1
  55           && putc_unlocked (':', stream) == EOF))
  56     ++errors;
  57
  58   if ((p->sp_warn != (long int) -1
  59        && fprintf (stream, "%ld:", p->sp_warn) < 0)
  60       || (p->sp_warn == (long int) -1
  61           && putc_unlocked (':', stream) == EOF))
  62     ++errors;
  63
  64   if ((p->sp_inact != (long int) -1
  65        && fprintf (stream, "%ld:", p->sp_inact) < 0)
  66       || (p->sp_inact == (long int) -1
  67           && putc_unlocked (':', stream) == EOF))
  68     ++errors;
  69
  70   if ((p->sp_expire != (long int) -1
  71        && fprintf (stream, "%ld:", p->sp_expire) < 0)
  72       || (p->sp_expire == (long int) -1
  73           && putc_unlocked (':', stream) == EOF))
  74     ++errors;
  75
  76   if (p->sp_flag != ~0ul
  77       && fprintf (stream, "%ld", p->sp_flag) < 0)
  78     ++errors;
  79
  80   if (putc_unlocked ('\n', stream) == EOF)
  81     ++errors;
  82
  83   funlockfile (stream);
  84
  85   return errors ? -1 : 0;
  86 }