ref: 63a33e39df4b7faedccb566ff9012d38e5b82064
dir: /fs_test/lwext4_server.c/
/*
* Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdint.h>
#include <stdbool.h>
#include <getopt.h>
#include <time.h>
#include <sys/time.h>
#ifdef WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
#else
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/types.h>
#endif
#include <ext4_filedev.h>
#include <io_raw.h>
#include <ext4.h>
#include <errno.h>
static int winsock_init(void);
static void winsock_fini(void);
static char* entry_to_str(uint8_t type);
#define MAX_FILES 64
#define MAX_DIRS 64
#define MAX_RW_BUFFER (1024 * 1024)
#define RW_BUFFER_PATERN ('x')
/**@brief Default connection port*/
static int connection_port = 1234;
/**@brief Default filesystem filename.*/
static char *ext4_fname = "ext2";
/**@brief Verbose mode*/
static int verbose = 0;
/**@brief Winpart mode*/
static int winpart = 0;
/**@brief Blockdev handle*/
static struct ext4_blockdev *bd;
static int cache_wb = 0;
static char read_buffer[MAX_RW_BUFFER];
static char write_buffer[MAX_RW_BUFFER];
static const char *usage = " \n\
Welcome in lwext4_server. \n\
Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com) \n\
Usage: \n\
--image (-i) - ext2/3/4 image file \n\
--port (-p) - server port \n\
--verbose (-v) - verbose mode \n\
--winpart (-w) - windows_partition mode \n\
--cache_wb (-c) - cache writeback_mode \n\
\n";
/**@brief Open file instance descriptor.*/
struct lwext4_files {
char name[255];
ext4_file fd;
};
/**@brief Open directory instance descriptor.*/
struct lwext4_dirs {
char name[255];
ext4_dir fd;
};
/**@brief Library call opcode.*/
struct lwext4_op_codes {
char *func;
};
/**@brief Library call wraper.*/
struct lwext4_call {
int (*lwext4_call)(char *p);
};
/**@brief */
static struct lwext4_files file_tab[MAX_FILES];
/**@brief */
static struct lwext4_dirs dir_tab[MAX_DIRS];
/**@brief */
static struct lwext4_op_codes op_codes[] = {
"device_register",
"mount",
"umount",
"mount_point_stats",
"cache_write_back",
"fremove",
"fopen",
"fclose",
"fread",
"fwrite",
"fseek",
"ftell",
"fsize",
"dir_rm",
"dir_mk",
"dir_open",
"dir_close",
"dir_entry_get",
"multi_fcreate",
"multi_fwrite",
"multi_fread",
"multi_fremove",
"multi_dcreate",
"multi_dremove",
"stats_save",
"stats_check",
};
int _device_register(char *p);
int _mount(char *p);
int _umount(char *p);
int _mount_point_stats(char *p);
int _cache_write_back(char *p);
int _fremove(char *p);
int _fopen(char *p);
int _fclose(char *p);
int _fread(char *p);
int _fwrite(char *p);
int _fseek(char *p);
int _ftell(char *p);
int _fsize(char *p);
int _dir_rm(char *p);
int _dir_mk(char *p);
int _dir_open(char *p);
int _dir_close(char *p);
int _dir_close(char *p);
int _dir_entry_get(char *p);
int _multi_fcreate(char *p);
int _multi_fwrite(char *p);
int _multi_fread(char *p);
int _multi_fremove(char *p);
int _multi_dcreate(char *p);
int _multi_dremove(char *p);
int _stats_save(char *p);
int _stats_check(char *p);
/**@brief */
static struct lwext4_call op_call[] = {
_device_register, /*PARAMS(3): 0 cache_mode dev_name */
_mount, /*PARAMS(2): dev_name mount_point */
_umount, /*PARAMS(1): mount_point */
_mount_point_stats,/*PARAMS(2): mount_point, 0 */
_cache_write_back, /*PARAMS(2): mount_point, en */
_fremove, /*PARAMS(1): path */
_fopen, /*PARAMS(2): fid path flags */
_fclose, /*PARAMS(1): fid */
_fread, /*PARAMS(4): fid 0 len 0 */
_fwrite, /*PARAMS(4): fid 0 len 0 */
_fseek, /*PARAMS(2): fid off origin */
_ftell, /*PARAMS(2): fid exp */
_fsize, /*PARAMS(2): fid exp */
_dir_rm, /*PARAMS(1): path */
_dir_mk, /*PARAMS(1): path */
_dir_open, /*PARAMS(2): did, path */
_dir_close, /*PARAMS(1): did */
_dir_entry_get, /*PARAMS(2): did, exp */
_multi_fcreate, /*PARAMS(3): path prefix cnt */
_multi_fwrite, /*PARAMS(4): path prefix cnt size */
_multi_fread, /*PARAMS(4): path prefix cnt size */
_multi_fremove, /*PARAMS(2): path prefix cnt */
_multi_dcreate, /*PARAMS(3): path prefix cnt */
_multi_dremove, /*PARAMS(2): path prefix */
_stats_save, /*PARAMS(1): path */
_stats_check, /*PARAMS(1): path */
};
static clock_t get_ms(void)
{
struct timeval t;
gettimeofday(&t, NULL);
return (t.tv_sec * 1000) + (t.tv_usec / 1000);
}
/**@brief */
static int exec_op_code(char *opcode)
{
int i;
int r = -1;
for (i = 0; i < sizeof(op_codes) / sizeof(op_codes[0]); ++i) {
if(strncmp(op_codes[i].func, opcode, strlen(op_codes[i].func)))
continue;
if(opcode[strlen(op_codes[i].func)] != ' ')
continue;
printf("%s\n", opcode);
opcode += strlen(op_codes[i].func);
/*Call*/
clock_t t = get_ms();
r = op_call[i].lwext4_call(opcode);
printf("rc: %d, time: %ums\n", r, (unsigned int)(get_ms() - t));
break;
}
return r;
}
static int server_open(void)
{
int fd = 0;
struct sockaddr_in serv_addr;
memset(&serv_addr, 0, sizeof(serv_addr));
if(winsock_init() < 0) {
printf("winsock_init() error\n");
exit(-1);
}
fd = socket(AF_INET, SOCK_STREAM, 0);
if(fd < 0) {
printf("socket() error: %s\n", strerror(errno));
exit(-1);
}
int yes = 1;
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(int))) {
printf("setsockopt() error: %s\n", strerror(errno));
exit(-1);
}
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = htonl(INADDR_ANY);
serv_addr.sin_port = htons(connection_port);
if(bind(fd, (struct sockaddr*)&serv_addr, sizeof(serv_addr))){
printf("bind() error: %s\n", strerror(errno));
exit(-1);
}
if(listen(fd, 1)){
printf("listen() error: %s\n", strerror(errno));
exit(-1);
}
return fd;
}
static bool parse_opt(int argc, char **argv)
{
int option_index = 0;
int c;
static struct option long_options[] = {
{"image", required_argument, 0, 'i'},
{"port", required_argument, 0, 'p'},
{"verbose", required_argument, 0, 'v'},
{"winpart", required_argument, 0, 'w'},
{"cache_wb",required_argument, 0, 'c'},
{0, 0, 0, 0}
};
while(-1 != (c = getopt_long (argc, argv, "c:i:p:v:w:", long_options, &option_index))) {
switch(c){
case 'i':
ext4_fname = optarg;
break;
case 'p':
connection_port = atoi(optarg);
break;
case 'v':
verbose = atoi(optarg);
break;
case 'c':
cache_wb = atoi(optarg);
break;
case 'w':
winpart = atoi(optarg);
break;
default:
printf("%s", usage);
return false;
}
}
return true;
}
int main(int argc, char *argv[])
{
int n;
int listenfd;
int connfd;
char op_code[128];
if(!parse_opt(argc, argv))
return -1;
listenfd = server_open();
printf("lwext4_server: listening on port: %d\n", connection_port);
memset(write_buffer, RW_BUFFER_PATERN, MAX_RW_BUFFER);
while(1)
{
connfd = accept(listenfd, (struct sockaddr*)NULL, NULL);
n = recv(connfd, op_code, sizeof(op_code), 0);
if(n < 0) {
printf("recv() error: %s fd = %d\n", strerror(errno), connfd);
break;
}
op_code[n] = 0;
int r = exec_op_code(op_code);
n = send(connfd, (void *)&r, sizeof(r), 0);
if(n < 0) {
printf("send() error: %s fd = %d\n", strerror(errno), connfd);
break;
}
close(connfd);
}
winsock_fini();
return 0;
}
int _device_register(char *p)
{
int dev;
int cache_mode;
char dev_name[32];
if(sscanf(p, "%d %d %s", &dev, &cache_mode, dev_name) != 3){
printf("Param list error\n");
return -1;
}
#ifdef WIN32
if(winpart){
ext4_io_raw_filename(ext4_fname);
bd = ext4_io_raw_dev_get();
}
else
#endif
{
ext4_filedev_filename(ext4_fname);
bd = ext4_filedev_get();
}
return ext4_device_register(bd, 0, dev_name);
}
int _mount(char *p)
{
char dev_name[32];
char mount_point[32];
int rc;
if(sscanf(p, "%s %s", dev_name, mount_point) != 2){
printf("Param list error\n");
return -1;
}
rc = ext4_mount(dev_name, mount_point);
if(cache_wb)
ext4_cache_write_back(mount_point, 1);
return rc;
}
int _umount(char *p)
{
char mount_point[32];
if(sscanf(p, "%s", mount_point) != 1){
printf("Param list error\n");
return -1;
}
if(cache_wb)
ext4_cache_write_back(mount_point, 0);
return ext4_umount(mount_point);
}
int _mount_point_stats(char *p)
{
char mount_point[32];
int d;
int rc;
struct ext4_mount_stats stats;
if(sscanf(p, "%s %d", mount_point, &d) != 2){
printf("Param list error\n");
return -1;
}
rc = ext4_mount_point_stats(mount_point, &stats);
if(rc != EOK)
return rc;
if(verbose){
printf("\tinodes_count = %d\n", stats.inodes_count);
printf("\tfree_inodes_count = %d\n", stats.free_inodes_count);
printf("\tblocks_count = %llu\n", stats.blocks_count);
printf("\tfree_blocks_count = %llu\n", stats.free_blocks_count);
printf("\tblock_size = %d\n", stats.block_size);
printf("\tblock_group_count = %d\n", stats.block_group_count);
printf("\tblocks_per_group = %d\n", stats.blocks_per_group);
printf("\tinodes_per_group = %d\n", stats.inodes_per_group);
printf("\tvolume_name = %s\n", stats.volume_name);
}
return rc;
}
int _cache_write_back(char *p)
{
char mount_point[32];
int en;
if(sscanf(p, "%s %d", mount_point, &en) != 2){
printf("Param list error\n");
return -1;
}
return ext4_cache_write_back(mount_point, en);
}
int _fremove(char *p)
{
char path[255];
if(sscanf(p, "%s", path) != 1){
printf("Param list error\n");
return -1;
}
return ext4_fremove(path);
}
int _fopen(char *p)
{
int fid = MAX_FILES;
char path[256];
char flags[8];
int rc;
if(sscanf(p, "%d %s %s", &fid, path, flags) != 3){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
rc = ext4_fopen(&file_tab[fid].fd, path, flags);
if(rc == EOK)
strcpy(file_tab[fid].name, path);
return rc;
}
int _fclose(char *p)
{
int fid = MAX_FILES;
int rc;
if(sscanf(p, "%d", &fid) != 1){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
if(file_tab[fid].name[0] == 0){
printf("File id empty\n");
return -1;
}
rc = ext4_fclose(&file_tab[fid].fd);
if(rc == EOK)
file_tab[fid].name[0] = 0;
return rc;
}
int _fread(char *p)
{
int fid = MAX_FILES;
int len;
int d;
int rc;
int rb;
if(sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
if(file_tab[fid].name[0] == 0){
printf("File id empty\n");
return -1;
}
while(len){
d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
memset(read_buffer, 0, MAX_RW_BUFFER);
rc = ext4_fread(&file_tab[fid].fd, read_buffer, d, &rb);
if(rc != EOK)
break;
if(rb != d){
printf("Read count error\n");
return -1;
}
if(memcmp(read_buffer, write_buffer, d)){
printf("Read compare error\n");
return -1;
}
len -= d;
}
return rc;
}
int _fwrite(char *p)
{
int fid = MAX_FILES;
int len;
int d;
int rc;
int wb;
if(sscanf(p, "%d %d %d %d", &fid, &d, &len, &d) != 4){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
if(file_tab[fid].name[0] == 0){
printf("File id empty\n");
return -1;
}
while(len){
d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
rc = ext4_fwrite(&file_tab[fid].fd, write_buffer, d, &wb);
if(rc != EOK)
break;
if(wb != d){
printf("Write count error\n");
return -1;
}
len -= d;
}
return rc;
}
int _fseek(char *p)
{
int fid = MAX_FILES;
int off;
int origin;
if(sscanf(p, "%d %d %d", &fid, &off, &origin) != 3){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
if(file_tab[fid].name[0] == 0){
printf("File id empty\n");
return -1;
}
return ext4_fseek(&file_tab[fid].fd, off, origin);
}
int _ftell(char *p)
{
int fid = MAX_FILES;
uint32_t exp_pos;
if(sscanf(p, "%d %u", &fid, &exp_pos) != 2){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
if(file_tab[fid].name[0] == 0){
printf("File id empty\n");
return -1;
}
if(exp_pos != ext4_ftell(&file_tab[fid].fd)){
printf("Expected filepos error\n");
return -1;
}
return EOK;
}
int _fsize(char *p)
{
int fid = MAX_FILES;
uint32_t exp_size;
if(sscanf(p, "%d %u", &fid, &exp_size) != 2){
printf("Param list error\n");
return -1;
}
if(!(fid < MAX_FILES)){
printf("File id too big\n");
return -1;
}
if(file_tab[fid].name[0] == 0){
printf("File id empty\n");
return -1;
}
if(exp_size != ext4_fsize(&file_tab[fid].fd)){
printf("Expected filesize error\n");
return -1;
}
return EOK;
}
int _dir_rm(char *p)
{
char path[255];
if(sscanf(p, "%s", path) != 1){
printf("Param list error\n");
return -1;
}
return ext4_dir_rm(path);
}
int _dir_mk(char *p)
{
char path[255];
if(sscanf(p, "%s", path) != 1){
printf("Param list error\n");
return -1;
}
return ext4_dir_mk(path);
}
int _dir_open(char *p)
{
int did = MAX_DIRS;
char path[255];
int rc;
if(sscanf(p, "%d %s", &did, path) != 2){
printf("Param list error\n");
return -1;
}
if(!(did < MAX_DIRS)){
printf("Dir id too big\n");
return -1;
}
rc = ext4_dir_open(&dir_tab[did].fd, path);
if(rc == EOK)
strcpy(dir_tab[did].name, path);
return rc;
}
int _dir_close(char *p)
{
int did = MAX_DIRS;
int rc;
if(sscanf(p, "%d", &did) != 1){
printf("Param list error\n");
return -1;
}
if(!(did < MAX_DIRS)){
printf("Dir id too big\n");
return -1;
}
if(dir_tab[did].name[0] == 0){
printf("Dir id empty\n");
return -1;
}
rc = ext4_dir_close(&dir_tab[did].fd);
if(rc == EOK)
dir_tab[did].name[0] = 0;
return rc;
}
int _dir_entry_get(char *p)
{
int did = MAX_DIRS;
int exp;
char name[256];
if(sscanf(p, "%d %d", &did, &exp) != 2){
printf("Param list error\n");
return -1;
}
if(!(did < MAX_DIRS)){
printf("Dir id too big\n");
return -1;
}
if(dir_tab[did].name[0] == 0){
printf("Dir id empty\n");
return -1;
}
int idx = 0;
ext4_direntry *d;
while(d = ext4_dir_entry_get(&dir_tab[did].fd, idx++)){
memcpy(name, d->name, d->name_length);
name[d->name_length] = 0;
if(verbose){
printf("\t%s %s\n", entry_to_str(d->inode_type), name);
}
}
idx--;
if(idx < 2){
printf("Minumum dir entry error\n");
return -1;
}
if((idx - 2) != exp){
printf("Expected dir entry error\n");
return -1;
}
return EOK;
}
int _multi_fcreate(char *p)
{
char path[256];
char path1[256];
char prefix[32];
int cnt;
int rc;
int i;
ext4_file fd;
if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
printf("Param list error\n");
return -1;
}
for (i = 0; i < cnt; ++i) {
sprintf(path1, "%s%s%d", path, prefix, i);
rc = ext4_fopen(&fd, path1, "wb+");
if(rc != EOK)
break;
}
return rc;
}
int _multi_fwrite(char *p)
{
char path[256];
char path1[256];
char prefix[32];
int cnt;
int len, ll;
int rc;
int i, d, wb;
ext4_file fd;
if(sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4){
printf("Param list error\n");
return -1;
}
for (i = 0; i < cnt; ++i) {
sprintf(path1, "%s%s%d", path, prefix, i);
rc = ext4_fopen(&fd, path1, "rb+");
if(rc != EOK)
break;
len = ll;
while(len){
d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
rc = ext4_fwrite(&fd, write_buffer, d, &wb);
if(rc != EOK)
break;
if(wb != d){
printf("Write count error\n");
return -1;
}
len -= d;
}
}
return rc;
}
int _multi_fread(char *p)
{
char path[256];
char path1[256];
char prefix[32];
int cnt;
int len, ll;
int rc;
int i, d, rb;
ext4_file fd;
if(sscanf(p, "%s %s %d %d", path, prefix, &cnt, &ll) != 4){
printf("Param list error\n");
return -1;
}
for (i = 0; i < cnt; ++i) {
sprintf(path1, "%s%s%d", path, prefix, i);
rc = ext4_fopen(&fd, path1, "rb+");
if(rc != EOK)
break;
len = ll;
while(len){
d = len > MAX_RW_BUFFER ? MAX_RW_BUFFER : len;
memset(read_buffer, 0, MAX_RW_BUFFER);
rc = ext4_fread(&fd, read_buffer, d, &rb);
if(rc != EOK)
break;
if(rb != d){
printf("Read count error\n");
return -1;
}
if(memcmp(read_buffer, write_buffer, d)){
printf("Read compare error\n");
return -1;
}
len -= d;
}
}
return rc;
}
int _multi_fremove(char *p)
{
char path[256];
char path1[256];
char prefix[32];
int cnt, i, rc;
if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
printf("Param list error\n");
return -1;
}
for (i = 0; i < cnt; ++i) {
sprintf(path1, "%s%s%d", path, prefix, i);
rc = ext4_fremove(path1);
if(rc != EOK)
break;
}
return rc;
}
int _multi_dcreate(char *p)
{
char path[256];
char path1[256];
char prefix[32];
int cnt, i, rc;
if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
printf("Param list error\n");
return -1;
}
for (i = 0; i < cnt; ++i) {
sprintf(path1, "%s%s%d", path, prefix, i);
rc = ext4_dir_mk(path1);
if(rc != EOK)
break;
}
return rc;
}
int _multi_dremove(char *p)
{
char path[256];
char path1[256];
char prefix[32];
int cnt, i, rc;
if(sscanf(p, "%s %s %d", path, prefix, &cnt) != 3){
printf("Param list error\n");
return -1;
}
for (i = 0; i < cnt; ++i) {
sprintf(path1, "%s%s%d", path, prefix, i);
rc = ext4_dir_rm(path1);
if(rc != EOK)
break;
}
return rc;
}
struct ext4_mount_stats saved_stats;
int _stats_save(char *p)
{
char path[256];
if(sscanf(p, "%s", path) != 1){
printf("Param list error\n");
return -1;
}
return ext4_mount_point_stats(path, &saved_stats);
}
int _stats_check(char *p)
{
char path[256];
int rc;
struct ext4_mount_stats actual_stats;
if(sscanf(p, "%s", path) != 1){
printf("Param list error\n");
return -1;
}
rc = ext4_mount_point_stats(path, &actual_stats);
if(rc != EOK)
return rc;
if(memcmp(&saved_stats, &actual_stats, sizeof(struct ext4_mount_stats))){
if(verbose){
printf("\tMount point stats error:\n");
printf("\tsaved_stats:\n");
printf("\tinodes_count = %d\n", saved_stats.inodes_count);
printf("\tfree_inodes_count = %d\n", saved_stats.free_inodes_count);
printf("\tblocks_count = %llu\n", saved_stats.blocks_count);
printf("\tfree_blocks_count = %llu\n", saved_stats.free_blocks_count);
printf("\tblock_size = %d\n", saved_stats.block_size);
printf("\tblock_group_count = %d\n", saved_stats.block_group_count);
printf("\tblocks_per_group = %d\n", saved_stats.blocks_per_group);
printf("\tinodes_per_group = %d\n", saved_stats.inodes_per_group);
printf("\tvolume_name = %s\n", saved_stats.volume_name);
printf("\tactual_stats:\n");
printf("\tinodes_count = %d\n", actual_stats.inodes_count);
printf("\tfree_inodes_count = %d\n", actual_stats.free_inodes_count);
printf("\tblocks_count = %llu\n", actual_stats.blocks_count);
printf("\tfree_blocks_count = %llu\n", actual_stats.free_blocks_count);
printf("\tblock_size = %d\n", actual_stats.block_size);
printf("\tblock_group_count = %d\n", actual_stats.block_group_count);
printf("\tblocks_per_group = %d\n", actual_stats.blocks_per_group);
printf("\tinodes_per_group = %d\n", actual_stats.inodes_per_group);
printf("\tvolume_name = %s\n", actual_stats.volume_name);
}
return -1;
}
return rc;
}
static char* entry_to_str(uint8_t type)
{
switch(type){
case EXT4_DIRENTRY_UNKNOWN:
return "[UNK] ";
case EXT4_DIRENTRY_REG_FILE:
return "[FIL] ";
case EXT4_DIRENTRY_DIR:
return "[DIR] ";
case EXT4_DIRENTRY_CHRDEV:
return "[CHA] ";
case EXT4_DIRENTRY_BLKDEV:
return "[BLK] ";
case EXT4_DIRENTRY_FIFO:
return "[FIF] ";
case EXT4_DIRENTRY_SOCK:
return "[SOC] ";
case EXT4_DIRENTRY_SYMLINK:
return "[SYM] ";
default:
break;
}
return "[???]";
}
static int winsock_init(void)
{
#if WIN32
int rc;
static WSADATA wsaData;
rc = WSAStartup(MAKEWORD(2,2), &wsaData);
if (rc != 0) {
return -1;
}
#endif
return 0;
}
static void winsock_fini(void)
{
#if WIN32
WSACleanup();
#endif
}