libexplain  1.4.D001
libexplain/buffer/fiemap.c
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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2009, 2011, 2013 Peter Miller
00004  *
00005  * This program is free software; you can redistribute it and/or modify
00006  * it under the terms of the GNU Lesser General Public License as
00007  * published by the Free Software Foundation; either version 3 of the
00008  * License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Lesser 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/linux/fiemap.h>
00020 
00021 #include <libexplain/buffer/fiemap.h>
00022 #include <libexplain/buffer/int64_t.h>
00023 #include <libexplain/buffer/long.h>
00024 #include <libexplain/buffer/pointer.h>
00025 #include <libexplain/parse_bits.h>
00026 #include <libexplain/is_efault.h>
00027 #include <libexplain/sizeof.h>
00028 
00029 #ifdef HAVE_LINUX_FIEMAP_H
00030 
00031 
00032 static void
00033 explain_buffer_fiemap_flags(explain_string_buffer_t *sb, int value)
00034 {
00035     static const explain_parse_bits_table_t table[] =
00036     {
00037         { "FIEMAP_FLAG_SYNC", FIEMAP_FLAG_SYNC },
00038         { "FIEMAP_FLAG_XATTR", FIEMAP_FLAG_XATTR },
00039     };
00040 
00041     explain_parse_bits_print(sb, value, table, SIZEOF(table));
00042 }
00043 
00044 
00045 void
00046 explain_buffer_fiemap(explain_string_buffer_t *sb,
00047     const struct fiemap *data)
00048 {
00049     if (explain_is_efault_pointer(data, sizeof(*data)))
00050     {
00051         explain_buffer_pointer(sb, data);
00052         return;
00053     }
00054 
00055     /*
00056      * We only print the (in) fields.
00057      */
00058     explain_string_buffer_puts(sb, "{ fm_start = ");
00059     explain_buffer_uint64_t(sb, data->fm_start);
00060     explain_string_buffer_puts(sb, ", fm_length = ");
00061     explain_buffer_uint64_t(sb, data->fm_length);
00062     explain_string_buffer_puts(sb, ", fm_flags = ");
00063     explain_buffer_fiemap_flags(sb, data->fm_flags);
00064     explain_string_buffer_puts(sb, ", fm_extent_count = ");
00065     explain_buffer_ulong(sb, data->fm_extent_count);
00066     explain_string_buffer_puts(sb, " }");
00067 }
00068 
00069 
00070 #else
00071 
00072 
00073 void
00074 explain_buffer_fiemap(explain_string_buffer_t *sb,
00075     const struct fiemap *data)
00076 {
00077     explain_buffer_pointer(sb, data);
00078 }
00079 
00080 
00081 #endif
00082 
00083 
00084 /* vim: set ts=8 sw=4 et : */