90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
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* This testing program makes sure the ext2_inode structure is 1024 bytes long
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*
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* Copyright (C) 2007 by Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include "config.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include "ext2_fs.h"
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struct ext2_inode_large inode;
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#ifndef offsetof
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#define offsetof(type, member) __builtin_offsetof(type, member)
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#endif
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#define check_field(x, s) cur_offset = do_field(#x, s, sizeof(inode.x), \
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offsetof(struct ext2_inode_large, x), \
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cur_offset)
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static int do_field(const char *field, unsigned size, unsigned cur_size,
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unsigned offset, unsigned cur_offset)
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{
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if (size != cur_size) {
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printf("error: %s size %u should be %u\n",
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field, cur_size, size);
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exit(1);
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}
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if (offset != cur_offset) {
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printf("error: %s offset %u should be %u\n",
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field, cur_offset, offset);
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exit(1);
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}
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printf("%8d %-30s %3u\n", offset, field, (unsigned) size);
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return offset + size;
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}
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int main(int argc, char **argv)
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{
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#if (__GNUC__ >= 4)
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int cur_offset = 0;
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printf("%8s %-30s %3s\n", "offset", "field", "size");
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check_field(i_mode, 2);
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check_field(i_uid, 2);
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check_field(i_size, 4);
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check_field(i_atime, 4);
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check_field(i_ctime, 4);
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check_field(i_mtime, 4);
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check_field(i_dtime, 4);
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check_field(i_gid, 2);
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check_field(i_links_count, 2);
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check_field(i_blocks, 4);
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check_field(i_flags, 4);
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check_field(osd1.linux1.l_i_version, 4);
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check_field(i_block, 15 * 4);
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check_field(i_generation, 4);
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check_field(i_file_acl, 4);
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check_field(i_size_high, 4);
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check_field(i_faddr, 4);
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check_field(osd2.linux2.l_i_blocks_hi, 2);
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check_field(osd2.linux2.l_i_file_acl_high, 2);
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check_field(osd2.linux2.l_i_uid_high, 2);
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check_field(osd2.linux2.l_i_gid_high, 2);
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check_field(osd2.linux2.l_i_checksum_lo, 2);
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check_field(osd2.linux2.l_i_reserved, 2);
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do_field("Small inode end", 0, 0, cur_offset, 128);
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check_field(i_extra_isize, 2);
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check_field(i_checksum_hi, 2);
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check_field(i_ctime_extra, 4);
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check_field(i_mtime_extra, 4);
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check_field(i_atime_extra, 4);
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check_field(i_crtime, 4);
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check_field(i_crtime_extra, 4);
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check_field(i_version_hi, 4);
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check_field(i_projid, 4);
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/* This size will change as new fields are added */
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do_field("Large inode end", 0, 0, cur_offset, sizeof(inode));
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#endif
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return 0;
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}
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