1 /* Copyright (C) 1996-2022 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, see 16 <https://www.gnu.org/licenses/>. */ 17 18 #ifndef _ALIASES_H 19 #define _ALIASES_H 1 20 21 #include <features.h> 22 23 #include <sys/types.h> 24 25 26 __BEGIN_DECLS 27 28 /* Structure to represent one entry of the alias database. */ 29 struct aliasent 30 { 31 char *alias_name; 32 size_t alias_members_len; 33 char **alias_members; 34 int alias_local; 35 }; 36 37 38 /* Open alias data base files. */ 39 extern void setaliasent (void) __THROW; 40 41 /* Close alias database files. */ 42 extern void endaliasent (void) __THROW; 43 44 /* Get the next entry from the alias database. */ 45 extern struct aliasent *getaliasent (void) __THROW; 46 47 /* Get the next entry from the alias database and put it in RESULT_BUF. */ 48 extern int getaliasent_r (struct aliasent *__restrict __result_buf, 49 char *__restrict __buffer, size_t __buflen, 50 struct aliasent **__restrict __result) __THROW; 51 52 /* Get alias entry corresponding to NAME. */ 53 extern struct aliasent *getaliasbyname (const char *__name) __THROW; 54 55 /* Get alias entry corresponding to NAME and put it in RESULT_BUF. */ 56 extern int getaliasbyname_r (const char *__restrict __name, 57 struct aliasent *__restrict __result_buf, 58 char *__restrict __buffer, size_t __buflen, 59 struct aliasent **__restrict __result) __THROW; 60 61 __END_DECLS 62 63 #endif /* aliases.h */ 64