/**
* Convert a number of blocks to the required space in bytes to store these blocks with their checksum.
* It assumes block_count fill the read buffer.
*
* @param block_offset
* number of blocks already processed
*
* @param block_count
* number of blocks to be read
*
* @param block_size
* size of a block in bytes
*
* @param img_opt
* image's options
*
* @note
* If the caller read a partial chunk, she have to take care of the latest checksum.
*
* This function handles these specials cases:
*
* - When blocks_per_cs is greater than the buffer's capacity, then the buffer does not
* always contains a checksum. When the buffer have a checksum, it is not always at the
* same offset, ie:
@verbatim
# with blocks_per_cs = 4 and buffer_cap = 3
read 1: <block><block><block>
read 2: <block><cs><block><block>
read 3: <block><block><cs><block>
read 4: <block><block><block><cs>
@endverbatim
*
* - When the buffer's capacity does not contains full sets of blocks_per_cs, we will not
* always get the same number of checksum per read, ie:
@verbatim
# with blocks_per_cs = 2 and buffer_cap = 3
read 1: <block><block><cs><block>
read 2: <block><cs><block><block><cs>
@endverbatim
*
*/
unsigned long long cnv_blocks_to_bytes(unsigned long long block_offset, unsigned int block_count, unsigned int block_size, const image_options* img_opt) {
unsigned long long bytes_count = block_count * block_size;
if (img_opt->blocks_per_checksum) {
/// adjust read_size to read the right number of checksum
unsigned long total_cs = get_checksum_count(block_offset + block_count, img_opt);
unsigned long copied_cs = get_checksum_count(block_offset, img_opt);
unsigned long newer_cs = total_cs - copied_cs;
bytes_count += newer_cs * img_opt->checksum_size;
}
return bytes_count;
}
/**
* main function - for clone or restore data
*/
int main(int argc, char **argv) {
#ifdef MEMTRACE
setenv("MALLOC_TRACE", "partclone_mtrace.log", 1);
mtrace();
#endif
char* source; /// source data
char* target; /// target data
int dfr, dfw; /// file descriptor for source and target
int r_size, w_size; /// read and write size
unsigned cs_size = 0; /// checksum_size
int start, stop; /// start, range, stop number for progress bar
unsigned long *bitmap = NULL; /// the point for bitmap data
int debug = 0; /// debug level
int tui = 0; /// text user interface
int pui = 0; /// progress mode(default text)
int flag;
int pres = 0;
pthread_t prog_thread;
void *p_result;
static const char *const bad_sectors_warning_msg =
"*************************************************************************\n"
"* WARNING: The disk has bad sectors. This means physical damage on the *\n"
"* disk surface caused by deterioration, manufacturing faults, or *\n"
"* another reason. The reliability of the disk may remain stable or *\n"
"* degrade quickly. Use the --rescue option to efficiently save as much *\n"
"* data as possible! *\n"
"*************************************************************************\n";
file_system_info fs_info; /// description of the file system
image_options img_opt;
init_fs_info(&fs_info);
init_image_options(&img_opt);
/**
* get option and assign to opt structure
* check parameter and read from argv
*/
parse_options(argc, argv, &opt);
/**
* if "-d / --debug" given
* open debug file in "/var/log/partclone.log" for log message
*/
memset(&fs_opt, 0, sizeof(fs_cmd_opt));
debug = opt.debug;
fs_opt.debug = debug;
fs_opt.ignore_fschk = opt.ignore_fschk;
//if(opt.debug)
open_log(opt.logfile);
/**
* using Text User Interface
*/
if (opt.ncurses) {
pui = NCURSES;
log_mesg(1, 0, 0, debug, "Using Ncurses User Interface mode.\n");
} else
pui = TEXT;
tui = open_pui(pui, opt.fresh);
if ((opt.ncurses) && (!tui)) {
opt.ncurses = 0;
pui = TEXT;
log_mesg(1, 0, 0, debug, "Open Ncurses User Interface Error.\n");
}
/// print partclone info
print_partclone_info(opt);
#ifndef CHKIMG
if (geteuid() != 0)
log_mesg(0, 1, 1, debug, "You are not logged as root. You may have \"access denied\" errors when working.\n");
else
log_mesg(1, 0, 0, debug, "UID is root.\n");
#endif
/// ignore crc check
if (opt.ignore_crc)
log_mesg(1, 0, 1, debug, "Ignore CRC errors\n");
/**
* open source and target
* clone mode, source is device and target is image file/stdout
* restore mode, source is image file/stdin and target is device
* dd mode, source is device and target is device !!not complete
*/
source = opt.source;
target = opt.target;
log_mesg(1, 0, 0, debug, "source=%s, target=%s \n", source, target);
dfr = open_source(source, &opt);
if (dfr == -1) {
log_mesg(0, 1, 1, debug, "Error exit\n");
}
#ifndef CHKIMG
dfw = open_target(target, &opt);
if (dfw == -1) {
log_mesg(0, 1, 1, debug, "Error exit\n");
}
#else
dfw = -1;
#endif
/**
* get partition information like super block, bitmap from device or image file.
*/
if (opt.clone) {
log_mesg(1, 0, 0, debug, "Initiate image options - version %s\n", IMAGE_VERSION_CURRENT);
img_opt.checksum_mode = opt.checksum_mode;
img_opt.checksum_size = get_checksum_size(opt.checksum_mode, opt.debug);
img_opt.blocks_per_checksum = opt.blocks_per_checksum;
cs_size = img_opt.checksum_size;
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(0, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
read_super_blocks(source, &fs_info);
if (img_opt.checksum_mode != CSM_NONE && img_opt.blocks_per_checksum == 0) {
const unsigned int buffer_capacity = opt.buffer_size > fs_info.block_size
? opt.buffer_size / fs_info.block_size : 1; // in blocks
img_opt.blocks_per_checksum = buffer_capacity;
}
log_mesg(1, 0, 0, debug, "%u blocks per checksum\n", img_opt.blocks_per_checksum);
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to store bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... \n");
read_bitmap(source, fs_info, bitmap, pui);
update_used_blocks_count(&fs_info, bitmap);
if (opt.check) {
unsigned long long needed_space = 0;
needed_space += sizeof(image_head) + sizeof(file_system_info) + sizeof(image_options);
needed_space += get_bitmap_size_on_disk(&fs_info, &img_opt, &opt);
needed_space += cnv_blocks_to_bytes(fs_info.usedblocks, fs_info.block_size, &img_opt);
check_free_space(&dfw, needed_space);
}
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Writing super block and bitmap...\n");
write_image_desc(&dfw, fs_info, img_opt, &opt);
write_image_bitmap(&dfw, fs_info, img_opt, bitmap, &opt);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.restore) {
log_mesg(1, 0, 0, debug, "restore image hdr - get information from image file\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get image information from image file
load_image_desc(&dfr, &opt, &fs_info, &img_opt);
cs_size = img_opt.checksum_size;
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to restore bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from image file
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait...\n");
load_image_bitmap(&dfr, opt, fs_info, img_opt, bitmap);
#ifndef CHKIMG
/// check the dest partition size.
if (opt.restore_raw_file)
check_free_space(&dfw, fs_info.device_size);
else if (opt.check)
check_size(&dfw, fs_info.device_size);
#endif
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
} else if (opt.dd || opt.domain) {
log_mesg(1, 0, 0, debug, "Initial image hdr - get Super Block from partition\n");
log_mesg(1, 0, 1, debug, "Reading Super Block\n");
/// get Super Block information from partition
read_super_blocks(source, &fs_info);
check_mem_size(fs_info, img_opt, opt);
/// alloc a memory to restore bitmap
bitmap = pc_alloc_bitmap(fs_info.totalblock);
if (bitmap == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
log_mesg(2, 0, 0, debug, "initial main bitmap pointer %p\n", bitmap);
log_mesg(1, 0, 0, debug, "Initial image hdr - read bitmap table\n");
/// read and check bitmap from partition
log_mesg(0, 0, 1, debug, "Calculating bitmap... Please wait... ");
read_bitmap(source, fs_info, bitmap, pui);
/// check the dest partition size.
if (opt.dd && opt.check) {
check_size(&dfw, fs_info.device_size);
}
log_mesg(2, 0, 0, debug, "check main bitmap pointer %p\n", bitmap);
log_mesg(0, 0, 1, debug, "done!\n");
}
log_mesg(1, 0, 0, debug, "print image information\n");
/// print option to log file
if (debug)
print_opt(opt);
print_file_system_info(fs_info, opt);
/**
* initial progress bar
*/
start = 0; /// start number of progress bar
stop = (fs_info.usedblocks); /// get the end of progress number, only used block
log_mesg(1, 0, 0, debug, "Initial Progress bar\n");
/// Initial progress bar
if (opt.no_block_detail)
flag = NO_BLOCK_DETAIL;
else
flag = IO;
progress_init(&prog, start, stop, fs_info.totalblock, flag, fs_info.block_size);
copied = 0; /// initial number is 0
/**
* thread to print progress
*/
pres = pthread_create(&prog_thread, NULL, thread_update_pui, NULL);
if(pres)
log_mesg(0, 1, 1, debug, "%s, %i, thread create error\n", __func__, __LINE__);
/**
* start read and write data between source and destination
*/
if (opt.clone) {
const unsigned long long blocks_total = fs_info.totalblock;
const unsigned int block_size = fs_info.block_size;
const unsigned int buffer_capacity = opt.buffer_size > block_size ? opt.buffer_size / block_size : 1; // in blocks
unsigned char checksum[cs_size];
unsigned int blocks_in_cs, blocks_per_cs, write_size;
char *read_buffer, *write_buffer;
blocks_per_cs = img_opt.blocks_per_checksum;
log_mesg(1, 0, 0, debug, "#\nBuffer capacity = %u, Blocks per cs = %u\n#\n", buffer_capacity, blocks_per_cs);
write_size = cnv_blocks_to_bytes(buffer_capacity, block_size, &img_opt);
read_buffer = (char*)malloc(buffer_capacity * block_size);
write_buffer = (char*)malloc(write_size + cs_size);
if (read_buffer == NULL || write_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
/// read data from the first block
if (lseek(dfr, 0, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%s\n", strerror(errno));
log_mesg(0, 0, 0, debug, "Total block %llu\n", blocks_total);
/// start clone partition to image file
log_mesg(1, 0, 0, debug, "start backup data...\n");
blocks_in_cs = 0;
init_checksum(img_opt.checksum_mode, checksum, debug);
block_id = 0;
do {
/// scan bitmap
unsigned long long i, blocks_skip, blocks_read;
unsigned int cs_added = 0, write_offset = 0;
off_t offset;
/// skip unused blocks
for (blocks_skip = 0;
block_id + blocks_skip < blocks_total &&
!pc_test_bit(block_id + blocks_skip, bitmap);
blocks_skip++);
if (block_id + blocks_skip == blocks_total)
break;
if (blocks_skip)
block_id += blocks_skip;
/// read blocks
for (blocks_read = 0;
block_id + blocks_read < blocks_total && blocks_read < buffer_capacity &&
pc_test_bit(block_id + blocks_read, bitmap);
++blocks_read);
if (!blocks_read)
break;
offset = (off_t)(block_id * block_size);
if (lseek(dfr, offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%s\n", strerror(errno));
r_size = read_all(&dfr, read_buffer, blocks_read * block_size, &opt);
if (r_size != (int)(blocks_read * block_size)) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
memset(read_buffer, 0, blocks_read * block_size);
for (r_size = 0; r_size < blocks_read * block_size; r_size += PART_SECTOR_SIZE)
rescue_sector(&dfr, offset + r_size, read_buffer + r_size, &opt);
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else
log_mesg(0, 1, 1, debug, "read error: %s\n", strerror(errno));
}
/// calculate checksum
for (i = 0; i < blocks_read; ++i) {
memcpy(write_buffer + write_offset,
read_buffer + i * block_size, block_size);
write_offset += block_size;
update_checksum(checksum, read_buffer + i * block_size, block_size);
if (blocks_per_cs > 0 && ++blocks_in_cs == blocks_per_cs) {
memcpy(write_buffer + write_offset, checksum, cs_size);
++cs_added;
write_offset += cs_size;
blocks_in_cs = 0;
if (opt.reseed_checksum)
init_checksum(img_opt.checksum_mode, checksum, debug);
}
}
/// write buffer to target
w_size = write_all(&dfw, write_buffer, write_offset, &opt);
if (w_size != write_offset)
log_mesg(0, 1, 1, debug, "image write ERROR:%s\n", strerror(errno));
/// count copied block
copied += blocks_read;
/// next block
block_id += blocks_read;
/// read or write error
if (r_size + cs_added * cs_size != w_size)
log_mesg(0, 1, 1, debug, "read(%i) and write(%i) different\n", r_size, w_size);
} while (1);
if (blocks_in_cs > 0) {
// Write the checksum for the latest blocks
w_size = write_all(&dfw, (char*)checksum, cs_size, &opt);
if (w_size != cs_size)
log_mesg(0, 1, 1, debug, "image write ERROR:%s\n", strerror(errno));
}
free(write_buffer);
free(read_buffer);
} else if (opt.restore) {
const unsigned long long blocks_total = fs_info.totalblock;
const unsigned int block_size = fs_info.block_size;
const unsigned int buffer_capacity = opt.buffer_size > block_size ? opt.buffer_size / block_size : 1; // in blocks
const unsigned int blocks_per_cs = img_opt.blocks_per_checksum;
unsigned long long blocks_used = fs_info.usedblocks;
unsigned int blocks_in_cs, buffer_size, read_offset;
unsigned char checksum[cs_size];
char *read_buffer, *write_buffer;
int bugcheck = 0;
unsigned long long blocks_used_fix = 0, test_block = 0;
log_mesg(1, 0, 0, debug, "#\nBuffer capacity = %u, Blocks per cs = %u\n#\n", buffer_capacity, blocks_per_cs);
// fix some super block record incorrect
for (test_block = 0; test_block < blocks_total; ++test_block)
if (pc_test_bit(test_block, bitmap))
blocks_used_fix++;
if (blocks_used_fix != blocks_used) {
blocks_used = blocks_used_fix;
log_mesg(1, 0, 0, debug, "info: fixed used blocks count\n");
}
buffer_size = cnv_blocks_to_bytes(buffer_capacity, block_size, &img_opt);
if (img_opt.image_version != 0x0001)
read_buffer = (char*)malloc(buffer_size + cs_size);
else {
// Allocate more memory in case the image is affected by the 64 bits bug
read_buffer = (char*)malloc(buffer_size + buffer_capacity * cs_size);
}
write_buffer = (char*)malloc(buffer_capacity * block_size);
if (read_buffer == NULL || write_buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
#ifndef CHKIMG
/// seek to the first
if (lseek(dfw, opt.offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "target seek ERROR:%s\n", strerror(errno));
#endif
/// start restore image file to partition
log_mesg(1, 0, 0, debug, "start restore data...\n");
blocks_in_cs = 0;
init_checksum(img_opt.checksum_mode, checksum, debug);
block_id = 0;
do {
unsigned int i;
unsigned char cs_saved[cs_size];
unsigned long long blocks_written, bytes_skip;
unsigned int read_size;
// max chunk to read using one read(2) syscall
int blocks_read = copied + buffer_capacity < blocks_used ?
buffer_capacity : blocks_used - copied;
if (!blocks_read)
break;
read_offset = bugcheck ? 4 : 0;
log_mesg(1, 0, 0, debug, "blocks_read = %d\n", blocks_read);
read_size = cnv_blocks_to_bytes(blocks_read, block_size, &img_opt);
// increase read_size to make room for the checksum
if (blocks_per_cs > 0) {
if (bugcheck) {
read_size += blocks_read * cs_size;
} else if (blocks_read % blocks_per_cs) {
// adjust read_size to read the right number of checksum
unsigned long total_cs = get_checksum_count(copied + blocks_read, &img_opt);
unsigned long copied_cs = get_checksum_count(copied, &img_opt);
unsigned long newer_cs = get_checksum_count(blocks_read, &img_opt);
unsigned long extra_cs = total_cs - copied_cs - newer_cs;
if ((blocks_read < buffer_capacity) && (blocks_used % blocks_per_cs)) {
// it is the last read and there is a partial chunk at the end
++extra_cs;
}
read_size += extra_cs * cs_size;
log_mesg(1, 0, 0, debug, "# extra cs = %u\n", extra_cs);
}
}
// read chunk from image
log_mesg(1, 0, 0, debug, "read more: ");
r_size = read_all(&dfr, read_buffer, read_size, &opt);
if (r_size != read_size)
log_mesg(0, 1, 1, debug, "read ERROR:%s\n", strerror(errno));
// read buffer is the follows:
// <blocks_per_cs><cs1><blocks_per_cs><cs2>...
// write buffer should be the following:
// <block1><block2>...
// fill up write buffer, validate checksum
recheck:
memcpy(cs_saved, checksum, cs_size);
for (i = 0; i < blocks_read; ++i) {
memcpy(write_buffer + i * block_size,
read_buffer + read_offset, block_size);
if (opt.ignore_crc) {
read_offset += block_size;
if (++blocks_in_cs == blocks_per_cs)
read_offset += cs_size;
continue;
}
update_checksum(checksum, read_buffer + read_offset, block_size);
if (++blocks_in_cs == blocks_per_cs) {
if (memcmp(read_buffer + read_offset + block_size, checksum, cs_size)) {
if (bugcheck || img_opt.image_version != 0x0001)
log_mesg(0, 1, 1, debug, "CRC error, block_id=%llu...\n ", block_id + i);
else {
log_mesg(1, 0, 0, debug, "CRC Check error. 64bit bug before v0.1.0 (Rev:250M), "
"trying enlarge crc size and recheck again...\n");
// the bug has written the crc with 4 extra bytes, so the read buffer is like this:
// <block1><crc1><bug><block2><crc2><bug>...
read_offset += 4;
blocks_in_cs -= 1;
bugcheck = 1;
memcpy(checksum, cs_saved, cs_size);
goto recheck;
}
}
read_offset += cs_size;
if (bugcheck)
read_offset += cs_size;
blocks_in_cs = 0;
if (opt.reseed_checksum)
init_checksum(img_opt.checksum_mode, checksum, debug);
}
read_offset += block_size;
}
blocks_written = 0;
do {
int blocks_write;
/// count bytes to skip
for (bytes_skip = 0;
block_id < blocks_total &&
!pc_test_bit(block_id, bitmap);
block_id++, bytes_skip += block_size);
#ifndef CHKIMG
/// skip empty blocks
if (bytes_skip > 0 && lseek(dfw, (off_t)bytes_skip, SEEK_CUR) == (off_t)-1)
log_mesg(0, 1, 1, debug, "target seek ERROR:%s\n", strerror(errno));
#endif
/// blocks to write
for (blocks_write = 0;
block_id + blocks_write < blocks_total &&
blocks_written + blocks_write < blocks_read &&
pc_test_bit(block_id + blocks_write, bitmap);
blocks_write++);
#ifndef CHKIMG
// write blocks
if (blocks_write > 0) {
w_size = write_all(&dfw, write_buffer + blocks_written * block_size,
blocks_write * block_size, &opt);
if (w_size != blocks_write * block_size) {
if (!opt.skip_write_error)
log_mesg(0, 1, 1, debug, "write block %llu ERROR:%s\n", block_id + blocks_written, strerror(errno));
else
log_mesg(0, 0, 1, debug, "skip write block %llu error:%s\n", block_id + blocks_written, strerror(errno));
}
}
#endif
blocks_written += blocks_write;
block_id += blocks_write;
copied += blocks_write;
} while (blocks_written < blocks_read);
} while(1);
if (blocks_in_cs) {
log_mesg(1, 0, 0, debug, "check latest chunk's checksum covering %u blocks\n", blocks_in_cs);
if (memcmp(read_buffer + read_offset, checksum, cs_size))
log_mesg(0, 1, 1, debug, "CRC error, block_id=%llu...\n ", block_id);
}
free(write_buffer);
free(read_buffer);
#ifndef CHKIMG
/// restore_raw_file option
if (opt.restore_raw_file && !pc_test_bit(blocks_total - 1, bitmap)) {
if (ftruncate(dfw, (off_t)(blocks_total * block_size)) == -1)
log_mesg(0, 0, 1, debug, "ftruncate ERROR:%s\n", strerror(errno));
}
#endif
} else if (opt.dd) {
char *buffer;
int block_size = fs_info.block_size;
unsigned long long blocks_total = fs_info.totalblock;
int buffer_capacity = block_size < opt.buffer_size ? opt.buffer_size / block_size : 1;
buffer = (char*)malloc(buffer_capacity * block_size);
if (buffer == NULL) {
log_mesg(0, 1, 1, debug, "%s, %i, not enough memory\n", __func__, __LINE__);
}
block_id = 0;
if (lseek(dfr, 0, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%d\n", strerror(errno));
log_mesg(0, 0, 0, debug, "Total block %llu\n", blocks_total);
/// start clone partition to partition
log_mesg(1, 0, 0, debug, "start backup data device-to-device...\n");
do {
/// scan bitmap
unsigned long long blocks_skip, blocks_read;
off_t offset;
/// skip unused blocks
for (blocks_skip = 0;
block_id + blocks_skip < blocks_total &&
!pc_test_bit(block_id + blocks_skip, bitmap);
blocks_skip++);
if (block_id + blocks_skip == blocks_total)
break;
if (blocks_skip)
block_id += blocks_skip;
/// read chunk from source
for (blocks_read = 0;
block_id + blocks_read < blocks_total && blocks_read < buffer_capacity &&
pc_test_bit(block_id + blocks_read, bitmap);
++blocks_read);
if (!blocks_read)
break;
offset = (off_t)(block_id * block_size);
if (lseek(dfr, offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "source seek ERROR:%s\n", strerror(errno));
if (lseek(dfw, offset + opt.offset, SEEK_SET) == (off_t)-1)
log_mesg(0, 1, 1, debug, "target seek ERROR:%s\n", strerror(errno));
r_size = read_all(&dfr, buffer, blocks_read * block_size, &opt);
if (r_size != (int)(blocks_read * block_size)) {
if ((r_size == -1) && (errno == EIO)) {
if (opt.rescue) {
memset(buffer, 0, blocks_read * block_size);
for (r_size = 0; r_size < blocks_read * block_size; r_size += PART_SECTOR_SIZE)
rescue_sector(&dfr, offset + r_size, buffer + r_size, &opt);
} else
log_mesg(0, 1, 1, debug, "%s", bad_sectors_warning_msg);
} else
log_mesg(0, 1, 1, debug, "source read ERROR %s\n", strerror(errno));
}
/// write buffer to target
w_size = write_all(&dfw, buffer, blocks_read * block_size, &opt);
if (w_size != (int)(blocks_read * block_size)) {
if (opt.skip_write_error)
log_mesg(0, 0, 1, debug, "skip write block %lli error:%s\n", block_id, strerror(errno));
else
log_mesg(0, 1, 1, debug, "write block %lli ERROR:%s\n", block_id, strerror(errno));
}
/// count copied block
copied += blocks_read;
/// next block
block_id += blocks_read;
/// read or write error
if (r_size != w_size) {
if (opt.skip_write_error)
log_mesg(0, 0, 1, debug, "read and write different\n");
else
log_mesg(0, 1, 1, debug, "read and write different\n");
}
} while (1);
free(buffer);
/// restore_raw_file option
if (opt.restore_raw_file && !pc_test_bit(blocks_total - 1, bitmap)) {
if (ftruncate(dfw, (off_t)(blocks_total * block_size)) == -1)
log_mesg(0, 0, 1, debug, "ftruncate ERROR:%s\n", strerror(errno));
}
} else if (opt.domain) {
int cmp, nx_current = 0;
unsigned long long next_block_id = 0;
log_mesg(0, 0, 0, debug, "Total block %i\n", fs_info.totalblock);
log_mesg(1, 0, 0, debug, "start writing domain log...\n");
// write domain log comment and status line
dprintf(dfw, "# Domain logfile created by %s v%s\n", EXECNAME, VERSION);
dprintf(dfw, "# Source: %s\n", opt.source);
dprintf(dfw, "# Offset: 0x%08llX\n", opt.offset_domain);
dprintf(dfw, "# current_pos current_status\n");
dprintf(dfw, "0x%08llX ?\n", opt.offset_domain + (fs_info.totalblock * fs_info.block_size));
dprintf(dfw, "# pos size status\n");
// start logging the used/unused areas
cmp = pc_test_bit(0, bitmap);
for (block_id = 0; block_id <= fs_info.totalblock; block_id++) {
if (block_id < fs_info.totalblock) {
nx_current = pc_test_bit(block_id, bitmap);
if (nx_current)
copied++;
} else
nx_current = -1;
if (nx_current != cmp) {
dprintf(dfw, "0x%08llX 0x%08llX %c\n",
opt.offset_domain + (next_block_id * fs_info.block_size),
(block_id - next_block_id) * fs_info.block_size,
cmp ? '+' : '?');
next_block_id = block_id;
cmp = nx_current;
}
// don't bother updating progress
} /// end of for
}
done = 1;
pres = pthread_join(prog_thread, &p_result);
if(pres)
log_mesg(0, 1, 1, debug, "%s, %i, thread join error\n", __func__, __LINE__);
update_pui(&prog, copied, block_id, done);
#ifndef CHKIMG
sync_data(dfw, &opt);
#endif
print_finish_info(opt);
/// close source
close(dfr);
/// close target
if (dfw != -1)
close(dfw);
/// free bitmp
free(bitmap);
close_pui(pui);
#ifndef CHKIMG
fprintf(stderr, "Cloned successfully.\n");
#else
printf("Checked successfully.\n");
#endif
if (opt.debug)
close_log();
#ifdef MEMTRACE
muntrace();
#endif
return 0; /// finish
}
