shadow/sgetspent_r.c

   1 /* Copyright (C) 1996, 1997, 1998, 2005, 2009 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 <ctype.h>
  20 #include <errno.h>
  21 #include <shadow.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 /* Define a line parsing function using the common code
  26    used in the nss_files module.  */
  27
  28 #define STRUCTURE       spwd
  29 #define ENTNAME         spent
  30 struct spent_data {};
  31
  32 /* Predicate which always returns false, needed below.  */
  33 #define FALSEP(arg) 0
  34
  35
  36 #include <nss/nss_files/files-parse.c>
  37 LINE_PARSER
  38 (,
  39  STRING_FIELD (result->sp_namp, ISCOLON, 0);
  40  if (line[0] == '\0'
  41      && (result->sp_namp[0] == '+' || result->sp_namp[0] == '-'))
  42    {
  43      result->sp_pwdp = NULL;
  44      result->sp_lstchg = 0;
  45      result->sp_min = 0;
  46      result->sp_max = 0;
  47      result->sp_warn = -1l;
  48      result->sp_inact = -1l;
  49      result->sp_expire = -1l;
  50      result->sp_flag = ~0ul;
  51    }
  52  else
  53    {
  54      STRING_FIELD (result->sp_pwdp, ISCOLON, 0);
  55      INT_FIELD_MAYBE_NULL (result->sp_lstchg, ISCOLON, 0, 10, (long int),
  56                            (long int) -1);
  57      INT_FIELD_MAYBE_NULL (result->sp_min, ISCOLON, 0, 10, (long int),
  58                            (long int) -1);
  59      INT_FIELD_MAYBE_NULL (result->sp_max, ISCOLON, 0, 10, (long int),
  60                            (long int) -1);
  61      while (isspace (*line))
  62        ++line;
  63      if (*line == '\0')
  64        {
  65          /* The old form.  */
  66          result->sp_warn = -1l;
  67          result->sp_inact = -1l;
  68          result->sp_expire = -1l;
  69          result->sp_flag = ~0ul;
  70        }
  71      else
  72        {
  73          INT_FIELD_MAYBE_NULL (result->sp_warn, ISCOLON, 0, 10, (long int),
  74                                (long int) -1);
  75          INT_FIELD_MAYBE_NULL (result->sp_inact, ISCOLON, 0, 10, (long int),
  76                                (long int) -1);
  77          INT_FIELD_MAYBE_NULL (result->sp_expire, ISCOLON, 0, 10, (long int),
  78                                (long int) -1);
  79          if (*line != '\0')
  80            INT_FIELD_MAYBE_NULL (result->sp_flag, FALSEP, 0, 10,
  81                                  (unsigned long int), ~0ul)
  82          else
  83            result->sp_flag = ~0ul;
  84        }
  85    }
  86  )
  87
  88
  89 /* Read one shadow entry from the given stream.  */
  90 int
  91 __sgetspent_r (const char *string, struct spwd *resbuf, char *buffer,
  92                size_t buflen, struct spwd **result)
  93 {
  94   buffer[buflen - 1] = '\0';
  95   char *sp = strncpy (buffer, string, buflen);
  96   if (buffer[buflen - 1] != '\0')
  97     return ERANGE;
  98
  99   int parse_result = parse_line (sp, resbuf, NULL, 0, &errno);
 100   *result = parse_result > 0 ? resbuf : NULL;
 101
 102   return *result == NULL ? errno : 0;
 103 }
 104 weak_alias (__sgetspent_r, sgetspent_r)