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