The C and C++ Include Header Files

/usr/include/aliases.h


$ cat -n /usr/include/aliases.h

     1	/* Copyright (C) 1996-2024 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 */