shadow/putspent.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 <stdio.h>
  20 #include <shadow.h>
  21
  22 #ifdef USE_IN_LIBIO
  23 # define flockfile(s) _IO_flockfile (s)
  24 # define funlockfile(s) _IO_funlockfile (s)
  25 #endif
  26
  27 #define _S(x)   x ? x : ""
  28
  29
  30 /* Write an entry to the given stream.
  31    This must know the format of the password file.  */
  32 int
  33 putspent (const struct spwd *p, FILE *stream)
  34 {
  35   int errors = 0;
  36
  37   flockfile (stream);
  38
  39   if (fprintf (stream, "%s:%s:", p->sp_namp, _S (p->sp_pwdp)) < 0)
  40     ++errors;
  41
  42   if ((p->sp_lstchg != (long int) -1
  43        && fprintf (stream, "%ld:", p->sp_lstchg) < 0)
  44       || (p->sp_lstchg == (long int) -1
  45           && putc_unlocked (':', stream) == EOF))
  46     ++errors;
  47
  48   if ((p->sp_min != (long int) -1
  49        && fprintf (stream, "%ld:", p->sp_min) < 0)
  50       || (p->sp_min == (long int) -1
  51           && putc_unlocked (':', stream) == EOF))
  52     ++errors;
  53
  54   if ((p->sp_max != (long int) -1
  55        && fprintf (stream, "%ld:", p->sp_max) < 0)
  56       || (p->sp_max == (long int) -1
  57           && putc_unlocked (':', stream) == EOF))
  58     ++errors;
  59
  60   if ((p->sp_warn != (long int) -1
  61        && fprintf (stream, "%ld:", p->sp_warn) < 0)
  62       || (p->sp_warn == (long int) -1
  63           && putc_unlocked (':', stream) == EOF))
  64     ++errors;
  65
  66   if ((p->sp_inact != (long int) -1
  67        && fprintf (stream, "%ld:", p->sp_inact) < 0)
  68       || (p->sp_inact == (long int) -1
  69           && putc_unlocked (':', stream) == EOF))
  70     ++errors;
  71
  72   if ((p->sp_expire != (long int) -1
  73        && fprintf (stream, "%ld:", p->sp_expire) < 0)
  74       || (p->sp_expire == (long int) -1
  75           && putc_unlocked (':', stream) == EOF))
  76     ++errors;
  77
  78   if (p->sp_flag != ~0ul
  79       && fprintf (stream, "%ld", p->sp_flag) < 0)
  80     ++errors;
  81
  82   if (putc_unlocked ('\n', stream) == EOF)
  83     ++errors;
  84
  85   funlockfile (stream);
  86
  87   return errors ? -1 : 0;
  88 }