libexplain  1.4.D001
libexplain/tcflush_on_error.c
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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2010, 2012, 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/termios.h>
00021 
00022 #include <libexplain/tcflush.h>
00023 #include <libexplain/output.h>
00024 
00025 
00026 int
00027 explain_tcflush_on_error(int fildes, int selector)
00028 {
00029     int             result;
00030 
00031 #ifdef HAVE_TCFLUSH
00032     result = tcflush(fildes, selector);
00033 #else
00034     errno = ENOSYS;
00035     result = -1;
00036 #endif
00037     if (result < 0)
00038     {
00039         int             hold_errno;
00040 
00041         hold_errno = errno;
00042         explain_output_error("%s", explain_errno_tcflush(hold_errno, fildes,
00043             selector));
00044         errno = hold_errno;
00045     }
00046     return result;
00047 }
00048 
00049 
00050 /* vim: set ts=8 sw=4 et : */