shadow/fgetspent_r.c

   1 /* Copyright (C) 1996, 1997 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 Library General Public License as
   6    published by the Free Software Foundation; either version 2 of the
   7    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    Library General Public License for more details.
  13
  14    You should have received a copy of the GNU Library General Public
  15    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17    Boston, MA 02111-1307, USA.  */
  18
  19 #include <ctype.h>
  20 #include <shadow.h>
  21 #include <stdio.h>
  22
  23 /* Define a line parsing function using the common code
  24    used in the nss_files module.  */
  25
  26 #define STRUCTURE       spwd
  27 #define ENTNAME         spent
  28 #define EXTERN_PARSER   1
  29 struct spent_data {};
  30
  31 #include "../nss/nss_files/files-parse.c"
  32
  33
  34 /* Read one shadow entry from the given stream.  */
  35 int
  36 __fgetspent_r (FILE *stream, struct spwd *resbuf, char *buffer, size_t buflen,
  37                struct spwd **result)
  38 {
  39   char *p;
  40
  41   do
  42     {
  43       p = fgets (buffer, buflen, stream);
  44       if (p == NULL)
  45         {
  46           *result = NULL;
  47           return errno;
  48         }
  49
  50       /* Skip leading blanks.  */
  51       while (isspace (*p))
  52         ++p;
  53     } while (*p == '\0' || *p == '#' || /* Ignore empty and comment lines.  */
  54              /* Parse the line.  If it is invalid, loop to
  55                 get the next line of the file to parse.  */
  56              ! parse_line (buffer, (void *) resbuf, NULL, 0));
  57
  58   *result = resbuf;
  59   return 0;
  60 }
  61 weak_alias (__fgetspent_r, fgetspent_r)