inet/aliases.h

   1 /* Copyright (C) 1996, 1997, 1998, 1999 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 #ifndef _ALIASES_H
  20 #define _ALIASES_H      1
  21
  22 #include <features.h>
  23
  24 #include <sys/types.h>
  25
  26
  27 __BEGIN_DECLS
  28
  29 /* Structure to represent one entry of the alias data base.  */
  30 struct aliasent
  31   {
  32     char *alias_name;
  33     size_t alias_members_len;
  34     char **alias_members;
  35     int alias_local;
  36   };
  37
  38
  39 /* Open alias data base files.  */
  40 extern void setaliasent (void) __THROW;
  41
  42 /* Close alias data base files.  */
  43 extern void endaliasent (void) __THROW;
  44
  45 /* Get the next entry from the alias data base.  */
  46 extern struct aliasent *getaliasent (void) __THROW;
  47
  48 /* Get the next entry from the alias data base and put it in RESULT_BUF.  */
  49 extern int getaliasent_r (struct aliasent *__restrict __result_buf,
  50                           char *__restrict __buffer, size_t __buflen,
  51                           struct aliasent **__restrict __result) __THROW;
  52
  53 /* Get alias entry corresponding to NAME.  */
  54 extern struct aliasent *getaliasbyname (__const char *__name) __THROW;
  55
  56 /* Get alias entry corresponding to NAME and put it in RESULT_BUF.  */
  57 extern int getaliasbyname_r (__const char *__restrict __name,
  58                              struct aliasent *__restrict __result_buf,
  59                              char *__restrict __buffer, size_t __buflen,
  60                              struct aliasent **__restrict __result) __THROW;
  61
  62 __END_DECLS
  63
  64 #endif /* aliases.h */