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* Copyright (C) 1997 Theodore Ts'o.
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* This file may be redistributed under the terms of the GNU Public
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#include <ext2fs/ext2_fs.h>
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#include <et/com_err.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_icount_t test_icount;
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* Helper function which assures that the icount structure is valid
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static int check_icount(char *request)
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com_err(request, 0, "The icount structure must be allocated.");
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* Helper function which parses an inode number.
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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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*ino = strtoul(str, &tmp, 0);
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com_err(request, 0, "Bad %s - %s", desc, str);
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void do_create_icount(int argc, char **argv)
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if (argc && !strcmp("-i", *argv)) {
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flags |= EXT2_ICOUNT_OPT_INCREMENT;
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if (parse_inode(progname, "icount size", argv[0], &size))
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printf("Creating icount... flags=%d, size=%d\n", flags, (int) size);
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retval = ext2fs_create_icount(test_fs, flags, (int) size,
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com_err(progname, retval, "while creating icount");
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void do_free_icount(int argc, char **argv)
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if (check_icount(argv[0]))
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ext2fs_free_icount(test_icount);
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void do_fetch(int argc, char **argv)
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const char *usage = "usage: %s inode";
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printf(usage, argv[0]);
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if (check_icount(argv[0]))
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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retval = ext2fs_icount_fetch(test_icount, ino, &count);
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com_err(argv[0], retval, "while calling ext2fs_icount_fetch");
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printf("Count is %u\n", count);
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void do_increment(int argc, char **argv)
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const char *usage = "usage: %s inode";
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printf(usage, argv[0]);
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if (check_icount(argv[0]))
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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retval = ext2fs_icount_increment(test_icount, ino, &count);
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com_err(argv[0], retval,
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"while calling ext2fs_icount_increment");
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printf("Count is now %u\n", count);
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void do_decrement(int argc, char **argv)
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const char *usage = "usage: %s inode";
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printf(usage, argv[0]);
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if (check_icount(argv[0]))
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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retval = ext2fs_icount_decrement(test_icount, ino, &count);
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com_err(argv[0], retval,
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"while calling ext2fs_icount_increment");
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printf("Count is now %u\n", count);
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void do_store(int argc, char **argv)
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const char *usage = "usage: %s inode count";
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printf(usage, argv[0]);
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if (check_icount(argv[0]))
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if (parse_inode(argv[0], "inode", argv[1], &ino))
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if (parse_inode(argv[0], "count", argv[2], &count))
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printf("Count too large.\n");
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retval = ext2fs_icount_store(test_icount, ino, (__u16) count);
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com_err(argv[0], retval,
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"while calling ext2fs_icount_store");
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void do_dump(int argc, char **argv)
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if (check_icount(argv[0]))
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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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com_err(argv[0], retval,
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"while fetching icount for %lu", i);
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printf("%lu: %u\n", i, count);
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void do_validate(int argc, char **argv)
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if (check_icount(argv[0]))
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retval = ext2fs_icount_validate(test_icount, stdout);
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com_err(argv[0], retval, "while validating icount structure");
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printf("Icount structure successfully validated\n");
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void do_get_size(int argc, char **argv)
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if (check_icount(argv[0]))
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size = ext2fs_get_icount_size(test_icount);
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printf("Size of icount is: %lu\n", size);
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static int source_file(const char *cmd_file, int sci_idx)
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if (strcmp(cmd_file, "-") == 0)
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f = fopen(cmd_file, "r");
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setbuf(stdout, NULL);
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setbuf(stderr, NULL);
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if (fgets(buf, sizeof(buf), f) == NULL)
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cp = strchr(buf, '\n');
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cp = strchr(buf, '\r');
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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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ss_perror(sci_idx, retval, buf);
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int main(int argc, char **argv)
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const char *usage = "Usage: test_icount [-R request] [-f cmd_file]";
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struct ext2_super_block param;
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initialize_ext2_error_table();
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* Create a sample filesystem structure
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memset(¶m, 0, sizeof(struct ext2_super_block));
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param.s_blocks_count = 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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com_err("/dev/null", retval, "while setting up test fs");
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while ((c = getopt (argc, argv, "wR:f:")) != EOF) {
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com_err(argv[0], 0, usage);
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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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ss_perror(sci_idx, retval, "creating invocation");
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(void) ss_add_request_table (sci_idx, &ss_std_requests, 1, &retval);
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ss_perror(sci_idx, retval, "adding standard requests");
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retval = ss_execute_line(sci_idx, request);
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ss_perror(sci_idx, retval, request);
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} else if (cmd_file) {
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exit_status = source_file(cmd_file, sci_idx);