libexplain
1.4.D001
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00001 /* 00002 * libexplain - Explain errno values returned by libc functions 00003 * Copyright (C) 2013, 2014 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/sys/mount.h> 00021 00022 #include <libexplain/mount.h> 00023 #include <libexplain/output.h> 00024 00025 00026 void 00027 explain_mount_or_die(const char *source, const char *target, const char 00028 *file_systems_type, unsigned long flags, const void *data) 00029 { 00030 if (explain_mount_on_error(source, target, file_systems_type, flags, data) < 00031 0) 00032 { 00033 explain_output_exit_failure(); 00034 } 00035 } 00036 00037 00038 int 00039 explain_mount_on_error(const char *source, const char *target, const char 00040 *file_systems_type, unsigned long flags, const void *data) 00041 { 00042 int result; 00043 00044 #ifdef HAVE_MOUNT 00045 # ifdef __FreeBSD__ 00046 (void)file_systems_type; 00047 result = mount(source, target, flags, data); 00048 # else 00049 result = mount(source, target, file_systems_type, flags, data); 00050 # endif 00051 #else 00052 errno = ENOSYS; 00053 result = -1; 00054 #endif 00055 if (result < 0) 00056 { 00057 int hold_errno; 00058 00059 hold_errno = errno; 00060 explain_output_error 00061 ( 00062 "%s", 00063 explain_errno_mount(hold_errno, source, target, file_systems_type, 00064 flags, data) 00065 ); 00066 errno = hold_errno; 00067 } 00068 return result; 00069 } 00070 00071 00072 /* vim: set ts=8 sw=4 et : */