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389 lines
7.9 KiB
389 lines
7.9 KiB
/*
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* test_icount.c
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*
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* Copyright (C) 1997 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 Public
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* License.
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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 <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#include <fcntl.h>
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#include <ext2fs/ext2_fs.h>
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#include <et/com_err.h>
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#include <ss/ss.h>
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#include <ext2fs/ext2fs.h>
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#include <ext2fs/irel.h>
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#include <ext2fs/brel.h>
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extern ss_request_table test_cmds;
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#include "test_icount.h"
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ext2_filsys test_fs;
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ext2_icount_t test_icount;
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/*
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* Helper function which assures that the icount structure is valid
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*/
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static int check_icount(char *request)
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{
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if (test_icount)
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return 0;
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com_err(request, 0, "The icount structure must be allocated.");
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return 1;
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}
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/*
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* Helper function which parses an inode number.
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*/
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static int parse_inode(const char *request, const char *desc,
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const char *str, ext2_ino_t *ino)
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{
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char *tmp;
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*ino = strtoul(str, &tmp, 0);
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if (*tmp) {
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com_err(request, 0, "Bad %s - %s", desc, str);
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return 1;
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}
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return 0;
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}
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void do_create_icount(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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errcode_t retval;
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char *progname;
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int flags = 0;
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ext2_ino_t size = 5;
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progname = *argv;
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argv++; argc --;
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if (argc && !strcmp("-i", *argv)) {
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flags |= EXT2_ICOUNT_OPT_INCREMENT;
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argv++; argc--;
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}
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if (argc) {
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if (parse_inode(progname, "icount size", argv[0], &size))
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return;
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argv++; argc--;
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}
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#if 0
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printf("Creating icount... flags=%d, size=%d\n", flags, (int) size);
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#endif
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retval = ext2fs_create_icount(test_fs, flags, (int) size,
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&test_icount);
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if (retval) {
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com_err(progname, retval, "while creating icount");
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return;
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}
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}
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void do_free_icount(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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if (argc != 1) {
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printf("Usage: free_icount\n");
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return;
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}
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if (check_icount(argv[0]))
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return;
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ext2fs_free_icount(test_icount);
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test_icount = 0;
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}
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void do_fetch(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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const char *usage = "usage: %s inode\n";
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errcode_t retval;
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ext2_ino_t ino;
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__u16 count;
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if (argc < 2) {
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printf(usage, argv[0]);
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return;
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}
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if (check_icount(argv[0]))
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return;
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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return;
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retval = ext2fs_icount_fetch(test_icount, ino, &count);
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if (retval) {
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com_err(argv[0], retval, "while calling ext2fs_icount_fetch");
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return;
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}
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printf("Count is %u\n", count);
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}
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void do_increment(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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const char *usage = "usage: %s inode\n";
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errcode_t retval;
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ext2_ino_t ino;
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__u16 count;
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if (argc < 2) {
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printf(usage, argv[0]);
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return;
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}
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if (check_icount(argv[0]))
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return;
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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return;
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retval = ext2fs_icount_increment(test_icount, ino, &count);
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if (retval) {
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com_err(argv[0], retval,
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"while calling ext2fs_icount_increment");
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return;
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}
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printf("Count is now %u\n", count);
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}
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void do_decrement(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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const char *usage = "usage: %s inode\n";
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errcode_t retval;
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ext2_ino_t ino;
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__u16 count;
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if (argc < 2) {
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printf(usage, argv[0]);
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return;
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}
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if (check_icount(argv[0]))
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return;
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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return;
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retval = ext2fs_icount_decrement(test_icount, ino, &count);
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if (retval) {
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com_err(argv[0], retval,
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"while calling ext2fs_icount_decrement");
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return;
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}
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printf("Count is now %u\n", count);
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}
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void do_store(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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const char *usage = "usage: %s inode count\n";
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errcode_t retval;
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ext2_ino_t ino;
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ext2_ino_t count;
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if (argc < 3) {
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printf(usage, argv[0]);
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return;
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}
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if (check_icount(argv[0]))
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return;
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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return;
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if (parse_inode(argv[0], "count", argv[2], &count))
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return;
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if (count > 65535) {
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printf("Count too large.\n");
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return;
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}
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retval = ext2fs_icount_store(test_icount, ino, (__u16) count);
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if (retval) {
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com_err(argv[0], retval,
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"while calling ext2fs_icount_store");
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return;
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}
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}
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void do_dump(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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errcode_t retval;
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ext2_ino_t i;
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__u16 count;
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if (argc != 1) {
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printf("Usage: dump\n");
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return;
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}
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if (check_icount(argv[0]))
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return;
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for (i=1; i <= test_fs->super->s_inodes_count; i++) {
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retval = ext2fs_icount_fetch(test_icount, i, &count);
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if (retval) {
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com_err(argv[0], retval,
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"while fetching icount for %lu", (unsigned long)i);
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return;
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}
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if (count)
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printf("%lu: %u\n", (unsigned long)i, count);
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}
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}
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void do_validate(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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errcode_t retval;
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if (argc != 1) {
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printf("Usage: validate\n");
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return;
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}
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if (check_icount(argv[0]))
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return;
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retval = ext2fs_icount_validate(test_icount, stdout);
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if (retval) {
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com_err(argv[0], retval, "while validating icount structure");
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return;
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}
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printf("Icount structure successfully validated\n");
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}
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void do_get_size(int argc, char **argv, int sci_idx EXT2FS_ATTR((unused)),
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void *infop EXT2FS_ATTR((unused)))
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{
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ext2_ino_t size;
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if (argc != 1) {
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printf("Usage: get_size\n");
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return;
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}
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if (check_icount(argv[0]))
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return;
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size = ext2fs_get_icount_size(test_icount);
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printf("Size of icount is: %lu\n", (unsigned long)size);
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}
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static int source_file(const char *cmd_file, int sci_idx)
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{
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FILE *f;
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char buf[256];
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char *cp;
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int exit_status = 0;
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int retval;
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int noecho;
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if (strcmp(cmd_file, "-") == 0)
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f = stdin;
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else {
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f = fopen(cmd_file, "r");
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if (!f) {
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perror(cmd_file);
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exit(1);
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}
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}
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fflush(stdout);
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fflush(stderr);
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setbuf(stdout, NULL);
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setbuf(stderr, NULL);
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while (!feof(f)) {
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if (fgets(buf, sizeof(buf), f) == NULL)
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break;
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if (buf[0] == '#')
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continue;
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noecho = 0;
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if (buf[0] == '-') {
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noecho = 1;
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buf[0] = ' ';
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}
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cp = strchr(buf, '\n');
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if (cp)
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*cp = 0;
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cp = strchr(buf, '\r');
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if (cp)
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*cp = 0;
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if (!noecho)
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printf("test_icount: %s\n", buf);
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retval = ss_execute_line(sci_idx, buf);
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if (retval) {
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ss_perror(sci_idx, retval, buf);
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exit_status++;
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}
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}
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if (f != stdin)
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fclose(f);
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return exit_status;
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}
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int main(int argc, char **argv)
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{
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int retval;
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int sci_idx;
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int c;
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char *request = 0;
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int exit_status = 0;
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char *cmd_file = 0;
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struct ext2_super_block param;
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initialize_ext2_error_table();
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/*
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* Create a sample filesystem structure
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*/
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memset(¶m, 0, sizeof(struct ext2_super_block));
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ext2fs_blocks_count_set(¶m, 80000);
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param.s_inodes_count = 20000;
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retval = ext2fs_initialize("/dev/null", 0, ¶m,
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unix_io_manager, &test_fs);
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if (retval) {
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com_err("/dev/null", retval, "while setting up test fs");
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exit(1);
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}
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while ((c = getopt (argc, argv, "wR:f:")) != EOF) {
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switch (c) {
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case 'R':
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request = optarg;
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break;
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case 'f':
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cmd_file = optarg;
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break;
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default:
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com_err(argv[0], 0, "Usage: test_icount "
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"[-R request] [-f cmd_file]");
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exit(1);
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}
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}
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sci_idx = ss_create_invocation("test_icount", "0.0", (char *) NULL,
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&test_cmds, &retval);
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if (retval) {
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ss_perror(sci_idx, retval, "creating invocation");
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exit(1);
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}
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(void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
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if (retval) {
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ss_perror(sci_idx, retval, "adding standard requests");
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exit (1);
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}
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if (request) {
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retval = 0;
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retval = ss_execute_line(sci_idx, request);
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if (retval) {
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ss_perror(sci_idx, retval, request);
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exit_status++;
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}
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} else if (cmd_file) {
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exit_status = source_file(cmd_file, sci_idx);
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} else {
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ss_listen(sci_idx);
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}
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return(exit_status);
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}
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