libexplain  1.4.D001
libexplain/endgrent_or_die.c
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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2013 Peter Miller
00004  *
00005  * This program is free software; you can redistribute it and/or modify it
00006  * under the terms of the GNU Lesser General Public License as published by
00007  * the Free Software Foundation; either version 3 of the License, or (at
00008  * your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful, but
00011  * WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
00013  * General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Lesser General Public License
00016  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00017  */
00018 
00019 #include <libexplain/ac/errno.h>
00020 #include <libexplain/ac/grp.h>
00021 
00022 #include <libexplain/endgrent.h>
00023 #include <libexplain/output.h>
00024 
00025 
00026 void
00027 explain_endgrent_or_die(void)
00028 {
00029     int             hold_errno;
00030 
00031     hold_errno = errno;
00032     errno = 0;
00033     explain_endgrent_on_error();
00034     if (errno != 0)
00035     {
00036         hold_errno = errno;
00037         explain_output_exit_failure();
00038     }
00039     errno = hold_errno;
00040 }
00041 
00042 
00043 void
00044 explain_endgrent_on_error(void)
00045 {
00046     int             hold_errno;
00047 
00048     hold_errno = errno;
00049     errno = 0;
00050 #ifdef HAVE_ENDGRENT
00051     endgrent();
00052 #else
00053     errno = ENOSYS;
00054 #endif
00055     if (errno != 0)
00056     {
00057         hold_errno = errno;
00058         explain_output_error("%s", explain_errno_endgrent(hold_errno));
00059     }
00060     errno = hold_errno;
00061 }
00062 
00063 
00064 /* vim: set ts=8 sw=4 et : */