static __inline char * read_runtime_path(HANDLE h)
{
char buffer[TRAILER_SIZE];
static char runtime_path[MAX_PATH];
DWORD nread;
int num_sections, path_size, i;
long ofs;
if (SetFilePointer(h, -TRAILER_SIZE, NULL, FILE_END) == -1) return NULL;
if (! ReadFile(h, buffer, TRAILER_SIZE, &nread, NULL)) return NULL;
if (nread != TRAILER_SIZE) return NULL;
num_sections = read_size(buffer);
ofs = TRAILER_SIZE + num_sections * 8;
if (SetFilePointer(h, - ofs, NULL, FILE_END) == -1) return NULL;
path_size = 0;
for (i = 0; i < num_sections; i++) {
if (! ReadFile(h, buffer, 8, &nread, NULL) || nread != 8) return NULL;
if (buffer[0] == 'R' && buffer[1] == 'N' &&
buffer[2] == 'T' && buffer[3] == 'M') {
path_size = read_size(buffer + 4);
ofs += path_size;
} else if (path_size > 0)
ofs += read_size(buffer + 4);
}
if (path_size == 0) return default_runtime_name;
if (path_size >= MAX_PATH) return NULL;
if (SetFilePointer(h, -ofs, NULL, FILE_END) == -1) return NULL;
if (! ReadFile(h, runtime_path, path_size, &nread, NULL)) return NULL;
if (nread != path_size) return NULL;
runtime_path[path_size - 1] = 0;
return runtime_path;
}
static char * read_runtime_path(int fd)
{
char buffer[TRAILER_SIZE];
static char runtime_path[MAXPATHLEN];
int num_sections, i;
uint32 path_size;
long ofs;
lseek(fd, (long) -TRAILER_SIZE, SEEK_END);
if (read(fd, buffer, TRAILER_SIZE) < TRAILER_SIZE) return NULL;
num_sections = read_size(buffer);
ofs = TRAILER_SIZE + num_sections * 8;
lseek(fd, -ofs, SEEK_END);
path_size = 0;
for (i = 0; i < num_sections; i++) {
if (read(fd, buffer, 8) < 8) return NULL;
if (buffer[0] == 'R' && buffer[1] == 'N' &&
buffer[2] == 'T' && buffer[3] == 'M') {
path_size = read_size(buffer + 4);
ofs += path_size;
} else if (path_size > 0)
ofs += read_size(buffer + 4);
}
if (path_size == 0) return default_runtime_path;
if (path_size >= MAXPATHLEN) return NULL;
lseek(fd, -ofs, SEEK_END);
if (read(fd, runtime_path, path_size) != path_size) return NULL;
runtime_path[path_size - 1] = 0;
return runtime_path;
}
array_2d <T>
operator()(std::istream& s)
{
array_2d <T> a(read_size(s), read_size(s));
read(a, s);
return a;
}
static size_t onRead(char *buffer, size_t size, size_t nitems, void *instream)
{
WebRequestInternalState *is_(reinterpret_cast<WebRequestInternalState*>(instream));
is_->state = HTTP_OPEN;
if (is_->isAborted)
{
is_->state = HTTP_CLOSED;
return CURL_READFUNC_ABORT;
}
// Find the size in bytes.
size_t real_size(size * nitems);
// Read as much as we can from the upload buffer queue.
Deserializer* upload(dynamic_cast<Deserializer*>(is_->upload.Get()));
size_t size_queued(upload->GetSize());
size_t size_left(real_size);
if ((size_left > 0) && (size_queued > 0))
{
size_t read_size(std::min(size_queued, size_left));
upload->Read(buffer, (unsigned int)read_size);
size_left -= read_size;
}
// If we still have bytes to fill, then emit a "upload_chunk" event.
if (size_left > 0)
{
VariantMap eventData;
eventData.Insert(MakePair(StringHash("upload"), Variant(is_->upload)));
eventData.Insert(MakePair(StringHash("size"), Variant((unsigned int)size_left)));
is_->es.SendEvent("upload_chunk", eventData);
}
// Read as much as we can from the upload buffer queue (again).
size_queued = upload->GetSize();
size_left = real_size;
if ((size_left > 0) && (size_queued > 0))
{
size_t read_size(std::min(size_queued, size_left));
upload->Read(buffer, (unsigned int)read_size);
size_left -= read_size;
}
// If we still have bytes to fill, then something went wrong, so we should abort.
if (size_left > 0)
{
is_->isAborted = true;
return CURL_READFUNC_ABORT;
}
return real_size;
}
static int read_trailer(int fd, struct exec_trailer * trail)
{
unsigned char buffer[TRAILER_SIZE];
lseek(fd, (long) -TRAILER_SIZE, 2);
if (read(fd, (char*)buffer, TRAILER_SIZE) < TRAILER_SIZE)
return TRUNCATED_FILE;
trail->code_size = read_size(buffer);
trail->data_size = read_size(buffer+4);
trail->symbol_size = read_size(buffer+8);
trail->debug_size = read_size(buffer+12);
trail->magic = read_size(buffer+16);
if (trail->magic == EXEC_MAGIC) return 0; else return BAD_MAGIC_NUM;
}
array <array <T> >
operator()(std::istream& s)
{
size_t arr = read_size(s); // number of arrays
array <array<T> > a(arr);
size_t dim; // dimension of each array
for (size_t n = 0; n < arr; n++) {
dim = read_size(s);
a[n].init(dim);
read(a[n], s);
}
return a;
}
int parse_args(RTSOpts * opts, int argc, char *argv[])
{
if (argc == 0)
return 0;
if (strcmp(argv[0], "+RTS") != 0)
return 0;
int i;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-RTS") == 0) {
return i + 1;
}
if (argv[i][0] != '-') {
fprintf(stderr, "RTS options should start with '-'.\n");
print_usage(stderr);
exit(EXIT_FAILURE);
}
switch (argv[i][1])
{
case '?':
print_usage(stdout);
exit(EXIT_SUCCESS);
break;
case 's':
opts->show_summary = 1;
break;
case 'H':
opts->init_heap_size = read_size(argv[i] + 2);
break;
case 'K':
opts->max_stack_size = read_size(argv[i] + 2);
break;
default:
printf("RTS opts: Wrong argument: %s\n", argv[i]);
print_usage(stderr);
exit(EXIT_FAILURE);
}
}
return argc;
}
/* 向数据包队列中插入数据, 这些数据会按照数据包的结构, 即两个字节的长度紧跟着内容, 分析这些数据有多少个数据包.
* 对于其中的完整数据包将插入到完整包队列中去, 对于其中不完整的包将插入到不完整数据包的哈希表中去. 特别是对于
* 长度只有 1 个字节的不完整包, 此时已经无法计算出数据包的长度, 因而不完整数据包的 read 为 -1 , 而 header 为此一个字节值.
* 当下一次套接字中接收到数据时会判断 read 的长度, 从而正确拼接数据包.
*
* 参数: L 是虚拟机栈; fd 是数据所属的套接字 id; buffer 是数据内容; size 是数据大小;
* 函数无返回值 */
static void
push_more(lua_State *L, int fd, uint8_t *buffer, int size) {
if (size == 1) {
struct uncomplete * uc = save_uncomplete(L, fd);
uc->read = -1;
uc->header = *buffer;
return;
}
int pack_size = read_size(buffer);
buffer += 2;
size -= 2;
/* 虽然数据包的内容是不完整的, 但是给 pack.buffer 分配的内存是完整的 */
if (size < pack_size) {
struct uncomplete * uc = save_uncomplete(L, fd);
uc->read = size;
uc->pack.size = pack_size;
uc->pack.buffer = skynet_malloc(pack_size);
memcpy(uc->pack.buffer, buffer, size);
return;
}
push_data(L, fd, buffer, pack_size, 1);
buffer += pack_size;
size -= pack_size;
if (size > 0) {
push_more(L, fd, buffer, size);
}
}
array_2d <T>
operator()(std::istream& s)
{
size_t arr = read_size(s); // number of arrays
if (arr < 1)
return array_2d <T>();
size_t dim = read_size(s); // dimension of each array
array_2d <T> a(dim, arr);
for (size_t n = 0, p = 0; n < arr; n++, p += dim) {
if(n > 0) dim = read_size(s);
read(a[p], s, dim);
}
return a;
}
static void read_file(t_env *e)
{
int fd;
if ((fd = open("src/maps/map01.txt", O_RDONLY)) == -1)
exit(EXIT_FAILURE);
read_size(e, fd);
read_map(e, fd);
close(fd);
}
std::string Parser::read_item(std::istream &stream)
{
// An item in an itemized chunk is made up of the big endian size and the payload of that size
// Example:
// 0000: 4
// 0004: 0xDE 0xAD 0xBE 0xEF
// 0008: --- Next item ---
auto payload = read_payload(stream, read_size(stream));
return {std::begin(payload), std::end(payload)};
}
std::pair<ChunkId, std::string> Parser::read_chunk(std::istream &stream)
{
// LastPass blob chunk is made up of 4-byte ID, big endian 4-byte size and payload of that size
// Example:
// 0000: 'IDID'
// 0004: 4
// 0008: 0xDE 0xAD 0xBE 0xEF
// 000C: --- Next chunk ---
auto id = read_id(stream);
auto payload = read_payload(stream, read_size(stream));
return std::make_pair(id, payload);
}
static domain_type *
read_domain(namedb_type *db, uint32_t domain_count, domain_type **domains)
{
uint32_t domain_number;
if (!read_size(db, &domain_number))
return NULL;
if (domain_number == 0 || domain_number > domain_count)
return NULL;
return domains[domain_number - 1];
}
static zone_type *
read_zone(namedb_type *db, uint32_t zone_count, zone_type **zones)
{
uint32_t zone_number;
if (!read_size(db, &zone_number))
return NULL;
if (zone_number == 0 || zone_number > zone_count)
return NULL;
return zones[zone_number - 1];
}
/*Func: read_from_stat()
* This fucnction create stat type struct
* Read the information from stat()
* Check to see if there is error
* Calling functions to read info of the file:
* timestamp
* user_id, group_id
* mode, size, numintro
*/
void read_from_stat(file *info){
int t=0;
struct stat fileinfo;
t = fstat(info->desc,&fileinfo);
//perror("File Stat");
if(t==-1){
printf(CY"Error: File stat cannot be read. \nProgram is now exiting!\n"NC);
exit(EXIT_FAILURE);
}
read_time(info, fileinfo);
read_ids(info, fileinfo);
read_mode(info, fileinfo);
read_size(info, fileinfo);
}
int SlimConnectionHandler_Run(SlimConnectionHandler* self)
{
if (self->sendFunc(self->comLink, "Slim -- V0.0\n", 13) == -1)
{
return -1;
}
char* message = NULL;
while(1)
{
int size_i = read_size(self);
if (size_i > 0)
{
free(message);
message = (char*)malloc(size_i + (size_t)1);
memset(message, 0, (size_t)size_i + (size_t)1);
int numbytes = self->recvFunc(self->comLink, message, size_i);
if (numbytes != size_i)
{
printf("did not receive right number of bytes. %d expected but received %d\n", size_i, numbytes);
break;
}
if (strcmp("bye", message) == 0)
{
break;
}
//execute and get response
char* response_message = self->slimHandlerFunc(self->slimHandler, message);
int response_length = (int)strlen(response_message);
char * length_buffer = (char *)malloc((size_t)8);
sprintf(length_buffer, "%06d:", response_length);
int send_result = self->sendFunc(self->comLink, length_buffer, 7);
free(length_buffer);
send_result = self->sendFunc(self->comLink, response_message, response_length);
SlimList_Release(response_message);
} else if (size_i == -1)
{
break;
}
}
free(message);
fflush(stdout);
return 0;
}
int SlimConnectionHandler_Run(SlimConnectionHandler* self)
{
char * message = malloc(3);
message[0] = 0;
int numbytes;
if (self->sendFunc(self->comLink, "Slim -- V0.0\n", 13) == -1)
{
return -1;
}
while(1)
{
int size_i = read_size(self);
if (size_i > 0)
{
free(message);
message = malloc(size_i + 1);
memset(message, 0, size_i + 1);
if ((numbytes = self->recvFunc(self->comLink, message, size_i)) == -1)
break;
if (strcmp("bye", message) == 0)
break;
//execute and get response
char* response_message = self->slimHandler(message);
int response_length = strlen(response_message);
char * response = malloc(response_length + 7 + 1);
sprintf(response, "%06d:%s", response_length, response_message);
free(response_message);
int send_result = self->sendFunc(self->comLink, response, response_length + 7);
free(response);
if ( send_result == -1)
break;
}
}
free(message);
return 0;
}
static void json_process_field(int indx, void *data, struct format_field *field)
{
unsigned long long val;
if (field->flags & FIELD_IS_STRING) {
int offset;
if (field->flags & FIELD_IS_DYNAMIC) {
offset = *(int *)(data + field->offset);
offset &= 0xffff;
} else
offset = field->offset;
fprintf(ofp, "%s\"%s\"", prefix(indx), (char *)data + offset);
} else { /* FIELD_IS_NUMERIC */
val = read_size(data + field->offset, field->size);
if (field->flags & FIELD_IS_SIGNED)
fprintf(ofp, "%s%lld", prefix(indx),
(long long int) val);
else
fprintf(ofp, "%s%llu", prefix(indx), val);
}
}
/// 从 buffer 中读取数据. 如果 buffer 的数据足够, 那么数据内容会压入到 queue.queue 中; 否则会压入到 queue.hash 中.
static void
push_more(lua_State *L, int fd, uint8_t *buffer, int size) {
// 如果连包头的数据都不足够, 那么先读取包头的第一个字节数据
if (size == 1) {
struct uncomplete * uc = save_uncomplete(L, fd);
uc->read = -1;
uc->header = *buffer;
return;
}
// 读取数据包数据大小
int pack_size = read_size(buffer);
// 偏移到实际数据内容指针
buffer += 2;
// 得到实际数据的内容大小
size -= 2;
// 数据内容未能完全读取的情况
if (size < pack_size) {
struct uncomplete * uc = save_uncomplete(L, fd);
uc->read = size; // 记录已经读取的数据大小
uc->pack.size = pack_size; // 记录数据内容的大小
uc->pack.buffer = skynet_malloc(pack_size);
memcpy(uc->pack.buffer, buffer, size);
return;
}
// 如果数据内容能够完全读取, 那么读取数据, 并且压入到 queue.queue 中
push_data(L, fd, buffer, pack_size, 1);
// 继续读取剩余的函数
buffer += pack_size;
size -= pack_size;
if (size > 0) {
push_more(L, fd, buffer, size);
}
}
/* [lua_api] 将套接字发送过来的数据返回给 Lua 层使用. 函数首先将检查 queue 的不完整数据包哈希表中是否存在套接字 fd 的
* 不完整数据包, 如果有则检查其已经读取的内容长度, 并将剩余部分复制过去, 如果刚好是一个数据包大小就直接返回 "data" 字符
* 串和数据包给 Lua 层, 如果复制后多于一个数据包, 则将这些数据包一起插入到 queue 中, 并返回 "more" 字符串给 Lua 层.
* 在不足一个数据包的情况下, 将不完整包重新插入到哈希表中. 对于之前没有不完整包的情况执行相同的流程. 当返回 "more" 时,
* 可以通过 lpop 函数取得 queue 中的数据包. buffer 中的内容会复制到新的内存块中, 因而在调用完此函数之后需要释放 buffer 的内存;
*
* 参数: L 是虚拟机栈, 其位置一就是 queue 数据结构; fd 是套接字 id; buffer 是数据内容; size 是数据大小;
*
* 返回: userdata[1] 为 queue 数据结构; string/nil[2] 为 "more" 或者 "data" 表示有数据, nil 表示数据不完整;
* int[3] 为套接字 id, 仅在 "data" 下返回; lightuserdata[4] 为数据内容, 仅在 "data" 下返回;
* int[5] 为数据大小, 仅在 "data" 下返回; */
static int
filter_data_(lua_State *L, int fd, uint8_t * buffer, int size) {
struct queue *q = lua_touserdata(L,1);
struct uncomplete * uc = find_uncomplete(q, fd);
if (uc) {
// fill uncomplete
if (uc->read < 0) {
// read size
assert(uc->read == -1);
int pack_size = *buffer;
pack_size |= uc->header << 8 ;
++buffer;
--size;
uc->pack.size = pack_size;
uc->pack.buffer = skynet_malloc(pack_size);
uc->read = 0;
}
int need = uc->pack.size - uc->read;
if (size < need) {
memcpy(uc->pack.buffer + uc->read, buffer, size);
uc->read += size;
int h = hash_fd(fd);
uc->next = q->hash[h];
q->hash[h] = uc;
return 1;
}
memcpy(uc->pack.buffer + uc->read, buffer, need);
buffer += need;
size -= need;
if (size == 0) {
lua_pushvalue(L, lua_upvalueindex(TYPE_DATA));
lua_pushinteger(L, fd);
lua_pushlightuserdata(L, uc->pack.buffer);
lua_pushinteger(L, uc->pack.size);
skynet_free(uc);
return 5;
}
// more data
push_data(L, fd, uc->pack.buffer, uc->pack.size, 0);
skynet_free(uc);
push_more(L, fd, buffer, size);
lua_pushvalue(L, lua_upvalueindex(TYPE_MORE));
return 2;
} else {
if (size == 1) {
struct uncomplete * uc = save_uncomplete(L, fd);
uc->read = -1;
uc->header = *buffer;
return 1;
}
int pack_size = read_size(buffer);
buffer+=2;
size-=2;
if (size < pack_size) {
struct uncomplete * uc = save_uncomplete(L, fd);
uc->read = size;
uc->pack.size = pack_size;
uc->pack.buffer = skynet_malloc(pack_size);
memcpy(uc->pack.buffer, buffer, size);
return 1;
}
if (size == pack_size) {
// just one package
lua_pushvalue(L, lua_upvalueindex(TYPE_DATA));
lua_pushinteger(L, fd);
void * result = skynet_malloc(pack_size);
memcpy(result, buffer, size);
lua_pushlightuserdata(L, result);
lua_pushinteger(L, size);
return 5;
}
// more data
push_data(L, fd, buffer, pack_size, 1);
buffer += pack_size;
size -= pack_size;
push_more(L, fd, buffer, size);
lua_pushvalue(L, lua_upvalueindex(TYPE_MORE));
return 2;
}
}
static int
process_part(const char *data, size_t len)
{
size_t maxlen;
size_t amount_read = 0;
switch(sm.state)
{
case IN_HEADER:
maxlen = (sizeof sm.header - sm.data_read);
if (maxlen > len)
maxlen = len;
memcpy(((char *)&sm.header) + sm.data_read, data, maxlen);
sm.data_read += maxlen;
amount_read = maxlen;
sm.total_data_read += amount_read;
break;
case IN_LONG_FILENAME:
maxlen = sm.filedata_left;
if (maxlen > len)
maxlen = len;
assert(sm.longfilename);
memcpy(sm.longfilename + sm.data_read, data, maxlen);
sm.data_read += maxlen;
sm.filedata_left -= maxlen;
sm.until_header_left -= maxlen;
amount_read = maxlen;
sm.total_data_read += amount_read;
if (sm.filedata_left == 0)
{
if (strlen(sm.longfilename) > sm.data_read)
fatal_error("index_from_tar: Wrong long-filename length");
sm.state = IN_EXTRA_DATA;
sm.data_read = 0;
/* Here we don't update the smblock! we want to
* keep it as the start of the long name header */
}
break;
case IN_EXTRA_DATA:
maxlen = sm.until_header_left;
if (maxlen > len)
maxlen = len;
sm.data_read += maxlen;
sm.until_header_left -= maxlen;
amount_read = maxlen;
sm.total_data_read += amount_read;
if (sm.until_header_left == 0)
{
sm.state = IN_HEADER;
sm.data_read = 0;
advance_block();
}
break;
case IN_DATA:
maxlen = sm.filedata_left;
if (maxlen > len)
maxlen = len;
sm.data_read += maxlen;
sm.filedata_left -= maxlen;
sm.until_header_left -= maxlen;
amount_read = maxlen;
if (rsync_signature && maxlen > 0)
rsync_signature_work(rsync_signature, data, maxlen);
sm.total_data_read += amount_read;
if (command_line.debug > 2)
fprintf(stderr, "index_from_tar: still %lli to skip\n", sm.filedata_left);
if (sm.filedata_left == 0)
{
sm.state = IN_EXTRA_DATA;
sm.data_read = 0;
advance_block();
if (rsync_signature)
{
size_t siglen;
size_t len;
int res;
/* Mark end of file to rsync */
rsync_signature_work(rsync_signature, 0, 0);
/* Should output the block name too */
siglen = rsync_signature_size(rsync_signature);
len = siglen + strlen(index_filename) + 1 /*\0*/;
mytar_set_size(indextar, len);
mytar_write_header(indextar);
/* The name, and \0 */
res = mytar_write_data(indextar, index_filename,
strlen(index_filename) + 1);
if (res == -1)
error("Cannot write index tar 1 - mytar_write_data");
/* Then the rsync signature */
res = mytar_write_data(indextar, rsync_signature->output,
siglen);
if (res == -1)
error("Cannot write index tar 2 - mytar_write_data");
rsync_signature_free(rsync_signature);
rsync_signature = 0;
res = mytar_write_end(indextar);
if (res == -1)
error("Cannot write index tar - mytar_write_end");
}
}
break;
}
if (sm.state == IN_HEADER && sm.data_read == sizeof sm.header)
{
const struct header_gnu_tar *sh = &sm.header;
int checksum;
unsigned long long size;
int should_rsync = 0;
/* Process the header */
if (sh->checksum[0] == '\0')
{
/* Skip block, it should be final zero block. We could check it. */
sm.data_read = 0;
sm.state = IN_HEADER;
return amount_read;
}
checksum = read_octal_number(sh->checksum, sizeof sh->checksum);
if (calc_checksum(sh) != checksum)
error("Failed checksum interpreting tar");
size = read_size(sh->size);
sm.filedata_left = size;
sm.until_header_left = size;
/* Clamp at 512 bytes */
if (sm.until_header_left % 512 > 0)
sm.until_header_left += 512 - sm.until_header_left % 512;
if (sh->typeflag[0] == 'L')
{
sm.longfilename = malloc(sm.filedata_left+1);
if (!sm.longfilename)
fatal_error("Cannot allocate");
sm.longfilename[sm.filedata_left] = '\0';
sm.state = IN_LONG_FILENAME;
sm.data_read = 0;
return amount_read;
}
if (sh->typeflag[0] == 'K') /* Long link name. We ignore it */
{
sm.state = IN_DATA;
sm.data_read = 0;
return amount_read;
}
/* Check that we parse a GNU tar archive,
* and that we know the type. */
if (strncmp(sh->magic, "ustar ", 6) != 0 ||
strncmp(sh->version, " \0", 2) != 0 ||
(sh->typeflag[0] != '0' &&
sh->typeflag[0] != '5' &&
sh->typeflag[0] != '2' &&
sh->typeflag[0] != '1'
))
{
/* Unknown file. Skip data. */
char *fname;
fname = read_fixed_size_string(sh->name, sizeof sh->name);
fprintf(stderr, "Unknown header type, skipping %llu bytes: %s\n",
sm.until_header_left, fname);
free(fname);
sm.data_read = 0;
if (sm.filedata_left > 0)
sm.state = IN_DATA;
else
{
sm.state = IN_HEADER;
advance_block();
}
return amount_read;
}
mytar_new_file(indextar);
if (sm.longfilename)
{
if (command_line.debug > 1)
fprintf(stderr, "Writing index entry for the file %s\n", sm.longfilename);
mytar_set_filename(indextar, sm.longfilename);
free(sm.longfilename);
sm.longfilename = 0;
}
else
{
char name[sizeof sh->name + 1];
strcpyn(name, sh->name, sizeof sh->name);
if (command_line.debug > 1)
fprintf(stderr, "Writing index entry for the file %s\n", name);
mytar_set_filename(indextar, name);
}
mytar_set_mode(indextar, read_octal_number(sh->mode, sizeof sh->mode));
mytar_set_size(indextar, 0);
mytar_set_uid(indextar, read_octal_number(sh->uid, sizeof sh->uid));
mytar_set_gid(indextar, read_octal_number(sh->gid, sizeof sh->gid));
mytar_set_uname(indextar, sh->uname); /* internal strncopy will save harm */
mytar_set_gname(indextar, sh->gname); /* internal strncopy will save harm */
switch(sh->typeflag[0])
{
case '5':
mytar_set_filetype(indextar, S_IFDIR);
break;
case '0':
if (command_line.should_rsync &&
sm.filedata_left > command_line.rsync_minimal_size)
should_rsync = 1;
if (should_rsync)
mytar_set_filetype(indextar, S_IFREG);
else
mytar_set_filetype(indextar, S_IFLNK);
break;
case '1':
case '2':
mytar_set_filetype(indextar, S_IFLNK);
break;
default:
error("Indexing unknown file type");
}
mytar_set_mtime(indextar, read_octal_number(sh->mtime, sizeof sh->mtime));
mytar_set_atime(indextar, read_octal_number(sh->mtime, sizeof sh->mtime));
{
/* Start of block file - header */
snprintf(index_filename, sizeof index_filename,
"block%zu.tar%s_%llu", sm.block,
get_filter_extensions(filter),
(unsigned long long) size);
if (sh->typeflag[0] != '5' && !should_rsync)
mytar_set_linkname(indextar, index_filename);
}
if (should_rsync)
{
assert(rsync_signature == 0);
rsync_signature = rsync_signature_new();
}
else
mytar_write_header(indextar);
sm.data_read = 0;
if (sm.filedata_left > 0)
{
if (command_line.debug > 1)
fprintf(stderr, "index_from_tar: Going to skip %llu bytes\n", sm.filedata_left);
sm.state = IN_DATA;
}
else
{
sm.state = IN_HEADER;
advance_block();
}
}
return amount_read;
}
static void
request_start(struct client_context *client, char *req_buf) {
struct socks5_request *req = (struct socks5_request *)req_buf;
struct remote_context *remote = client->remote;
assert(remote->stage == XSTAGE_FORWARD);
client->cmd = req->cmd;
if (req->cmd != S5_CMD_CONNECT && req->cmd != S5_CMD_UDP_ASSOCIATE) {
logger_log(LOG_ERR, "unsupported cmd: 0x%02x", req->cmd);
request_ack(client, S5_REP_CMD_NOT_SUPPORTED);
return;
}
if (req->cmd == S5_CMD_UDP_ASSOCIATE) {
request_ack(client, S5_REP_SUCCESSED);
return;
}
char buf[260] = {0};
size_t buflen;
uint16_t portlen = 2;
/*
*
* xsocks request
* +------+----------+----------+
* | ATYP | BND.ADDR | BND.PORT |
* +------+----------+----------+
* | 1 | Variable | 2 |
* +------+----------+----------+
*
*/
if (req->atyp == ATYP_IPV4) {
size_t in_addr_len = sizeof(struct in_addr);
buflen = sizeof(struct xsocks_request) + in_addr_len + portlen;
buf[0] = ATYP_IPV4;
memcpy(buf + 1, req->addr, in_addr_len);
memcpy(buf + 1 + in_addr_len, req->addr + in_addr_len, portlen);
uv_inet_ntop(AF_INET, (const void *)(req->addr), client->target_addr, INET_ADDRSTRLEN);
uint16_t port = read_size((uint8_t*)(req->addr + in_addr_len));
sprintf(client->target_addr, "%s:%u", client->target_addr, port);
} else if (req->atyp == ATYP_HOST) {
uint8_t namelen = *(uint8_t *)(req->addr);
if (namelen > 0xFF) {
logger_log(LOG_ERR, "unsupported address type: 0x%02x", req->atyp);
request_ack(client, S5_REP_ADDRESS_TYPE_NOT_SUPPORTED);
return;
}
buflen = sizeof(struct xsocks_request) + 1 + namelen + portlen;
buf[0] = ATYP_HOST;
memcpy(buf + 1, req->addr, 1 + namelen);
memcpy(buf + 1 + 1 + namelen, req->addr + 1 + namelen, portlen);
memcpy(client->target_addr, req->addr + 1, namelen);
uint16_t port = read_size((uint8_t*)(req->addr + 1 + namelen));
sprintf(client->target_addr, "%s:%u", client->target_addr, port);
} else if (req->atyp == ATYP_IPV6) {
size_t in6_addr_len = sizeof(struct in6_addr);
buflen = sizeof(struct xsocks_request) + in6_addr_len + portlen;
buf[0] = ATYP_IPV6;
memcpy(buf + 1, req->addr, in6_addr_len);
memcpy(buf + 1 + in6_addr_len, req->addr + in6_addr_len, portlen);
uv_inet_ntop(AF_INET6, (const void *)(req->addr), client->target_addr, INET_ADDRSTRLEN);
uint16_t port = read_size((uint8_t*)(req->addr + in6_addr_len));
sprintf(client->target_addr, "%s:%u", client->target_addr, port);
} else {
logger_log(LOG_ERR, "unsupported address type: 0x%02x", req->atyp);
request_ack(client, S5_REP_ADDRESS_TYPE_NOT_SUPPORTED);
return;
}
request_ack(client, S5_REP_SUCCESSED);
// TODO: handle UDP ASSOCIATE
if (req->cmd == S5_CMD_CONNECT) {
if (verbose) {
logger_log(LOG_INFO, "connect to %s", client->target_addr);
}
int clen = buflen + PRIMITIVE_BYTES;
uint8_t *c = client->buf + HEADER_BYTES;
int rc = crypto_encrypt(c, (uint8_t *)buf, buflen);
if (!rc) {
forward_to_remote(remote, c, clen);
}
}
}
static void perl_process_event(int cpu, void *data,
int size __unused,
unsigned long long nsecs, char *comm)
{
struct format_field *field;
static char handler[256];
unsigned long long val;
unsigned long s, ns;
struct event *event;
int type;
int pid;
dSP;
type = trace_parse_common_type(data);
event = find_cache_event(type);
if (!event)
die("ug! no event found for type %d", type);
pid = trace_parse_common_pid(data);
sprintf(handler, "%s::%s", event->system, event->name);
s = nsecs / NSECS_PER_SEC;
ns = nsecs - s * NSECS_PER_SEC;
scripting_context->event_data = data;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(newSVpv(handler, 0)));
XPUSHs(sv_2mortal(newSViv(PTR2IV(scripting_context))));
XPUSHs(sv_2mortal(newSVuv(cpu)));
XPUSHs(sv_2mortal(newSVuv(s)));
XPUSHs(sv_2mortal(newSVuv(ns)));
XPUSHs(sv_2mortal(newSViv(pid)));
XPUSHs(sv_2mortal(newSVpv(comm, 0)));
/* common fields other than pid can be accessed via xsub fns */
for (field = event->format.fields; field; field = field->next) {
if (field->flags & FIELD_IS_STRING) {
int offset;
if (field->flags & FIELD_IS_DYNAMIC) {
offset = *(int *)(data + field->offset);
offset &= 0xffff;
} else
offset = field->offset;
XPUSHs(sv_2mortal(newSVpv((char *)data + offset, 0)));
} else { /* FIELD_IS_NUMERIC */
val = read_size(data + field->offset, field->size);
if (field->flags & FIELD_IS_SIGNED) {
XPUSHs(sv_2mortal(newSViv(val)));
} else {
XPUSHs(sv_2mortal(newSVuv(val)));
}
}
}
PUTBACK;
if (get_cv(handler, 0))
call_pv(handler, G_SCALAR);
else if (get_cv("main::trace_unhandled", 0)) {
XPUSHs(sv_2mortal(newSVpv(handler, 0)));
XPUSHs(sv_2mortal(newSViv(PTR2IV(scripting_context))));
XPUSHs(sv_2mortal(newSVuv(cpu)));
XPUSHs(sv_2mortal(newSVuv(nsecs)));
XPUSHs(sv_2mortal(newSViv(pid)));
XPUSHs(sv_2mortal(newSVpv(comm, 0)));
call_pv("main::trace_unhandled", G_SCALAR);
}
SPAGAIN;
PUTBACK;
FREETMPS;
LEAVE;
}
static void
parse_content(int level,
int64_t end_pos) {
while (static_cast<int64_t>(g_in->getFilePointer()) < end_pos) {
int64_t element_start_pos = g_in->getFilePointer();
try {
vint_c id = read_id(end_pos);
vint_c size = read_size(end_pos);
std::string element_name = g_element_names[id.value];
if (element_name.empty())
element_name = Y("unknown");
mxinfo(boost::format(Y("%1%pos %2% id 0x%|3$x| size %4% header size %5% (%6%)\n"))
% level_string(level) % element_start_pos % id.value % size.value % (id.coded_size + size.coded_size) % element_name);
if (size.is_unknown()) {
mxinfo(boost::format(Y("%1% Warning: size is coded as 'unknown' (all bits are set)\n")) % level_string(level));
// In Matroska segments often have an unknown size – so don't
// warn about it.
if (element_name != "Segment")
g_warnings_found = true;
}
int64_t content_end_pos = size.is_unknown() ? end_pos : g_in->getFilePointer() + size.value;
if (content_end_pos > end_pos) {
mxinfo(boost::format(Y("%1% Error: Element ends after scope\n")) % level_string(level));
g_errors_found = true;
if (!g_in->setFilePointer2(end_pos))
mxerror(boost::format(Y("Error: Seek to %1%\n")) % end_pos);
return;
}
if (g_is_master[id.value])
parse_content(level + 1, content_end_pos);
if (!g_in->setFilePointer2(content_end_pos))
mxerror(boost::format(Y("Error: Seek to %1%\n")) % content_end_pos);
} catch (id_error_c &error) {
std::string message
= id_error_c::end_of_file == error.code ? Y("End of file")
: id_error_c::end_of_scope == error.code ? Y("End of scope")
: id_error_c::first_byte_is_zero == error.code ? Y("First byte is zero")
: id_error_c::longer_than_four_bytes == error.code ? Y("ID is longer than four bytes")
: Y("reason is unknown");
mxinfo(boost::format(Y("%1%Error at %2%: error reading the element ID (%3%)\n")) % level_string(level) % element_start_pos % message);
g_errors_found = true;
if (!g_in->setFilePointer2(end_pos))
mxerror(boost::format(Y("Error: Seek to %1%\n")) % end_pos);
return;
} catch (size_error_c &error) {
std::string message
= size_error_c::end_of_file == error.code ? Y("End of file")
: size_error_c::end_of_scope == error.code ? Y("End of scope")
: Y("reason is unknown");
mxinfo(boost::format(Y("%1%Error at %2%: error reading the element size (%3%)\n")) % level_string(level) % element_start_pos % message);
g_errors_found = true;
if (!g_in->setFilePointer2(end_pos))
mxerror(boost::format(Y("Error: Seek to %1%\n")) % end_pos);
return;
} catch (...) {
mxerror(Y("Unknown error occured\n"));
}
}
}
int write_entries(const int fd, struct tar_t ** archive, struct tar_t ** head, const size_t filecount, const char * files[], int * offset, const char verbosity){
if (fd < 0){
return -1;
}
if (!archive || *archive){
return -1;
}
if (filecount && !files){
return -1;
}
// add new data
struct tar_t ** tar = archive; // current entry
char buf[512]; // one block buffer
for(unsigned int i = 0; i < filecount; i++){
*tar = malloc(sizeof(struct tar_t));
// stat file
if (format_tar_data(*tar, files[i], verbosity) < 0){
WRITE_ERROR(stderr, "Error: Failed to stat %s\n", files[i]);
}
if (!i){
*archive = *tar; // store first address
}
(*tar) -> begin = *offset;
// write different data depending on file type
if ((*tar) -> type == DIRECTORY){
// save parent directory name (source will change)
const size_t len = strlen((*tar) -> name);
char * parent = calloc(len + 1, sizeof(char));
strncpy(parent, (*tar) -> name, len);
// add a '/' character to the end
if ((len < 99) && ((*tar) -> name[len - 1] != '/')){
(*tar) -> name[len] = '/';
(*tar) -> name[len + 1] = '\0';
calculate_checksum((*tar));
}
V_PRINT(stdout, "%s\n", (*tar) -> name);
// write metadata to (*tar) file
if (write_size(fd, (*tar) -> block, 512) != 512){
WRITE_ERROR(stderr, "Error: Failed to write metadata to archive\n");
}
// go through directory
DIR * d = opendir(parent);
if (!d){
WRITE_ERROR(stderr, "Error: Cannot read directory %s\n", parent);
}
struct dirent * dir;
while ((dir = readdir(d))){
// if not special directories . and ..
const size_t sublen = strlen(dir -> d_name);
if (strncmp(dir -> d_name, ".", sublen) && strncmp(dir -> d_name, "..", sublen)){
char * path = calloc(len + sublen + 2, sizeof(char));
sprintf(path, "%s/%s", parent, dir -> d_name);
// recursively write each subdirectory
if (write_entries(fd, &((*tar) -> next), head, 1, (const char **) &path, offset, verbosity) < 0){
WRITE_ERROR(stderr, "Error: Recurse error\n");
}
// go to end of new data
while ((*tar) -> next){
tar = &((*tar) -> next);
}
free(path);
}
}
free(parent);
closedir(d);
}
else{ // if (((*tar) -> type == REGULAR) || ((*tar) -> type == NORMAL) || ((*tar) -> type == CONTIGUOUS) || ((*tar) -> type == SYMLINK) || ((*tar) -> type == CHAR) || ((*tar) -> type == BLOCK) || ((*tar) -> type == FIFO)){
V_PRINT(stdout, "%s\n", (*tar) -> name);
char tarred = 0; // whether or not the file has already been put into the archive
if (((*tar) -> type == REGULAR) || ((*tar) -> type == NORMAL) || ((*tar) -> type == CONTIGUOUS) || ((*tar) -> type == SYMLINK)){
struct tar_t * found = exists(*head, files[i], 1);
tarred = (found != (*tar));
// if file has already been included, modify the header
if (tarred){
// change type to hard link
(*tar) -> type = HARDLINK;
// change link name to (*tar)red file name (both are the same)
strncpy((*tar) -> link_name, (*tar) -> name, 100);
// change size to 0
strncpy((*tar) -> size, "00000000000", 11);
// recalculate checksum
calculate_checksum((*tar));
}
}
// write metadata to (*tar) file
if (write_size(fd, (*tar) -> block, 512) != 512){
WRITE_ERROR(stderr, "Error: Failed to write metadata to archive\n");
}
if (((*tar) -> type == REGULAR) || ((*tar) -> type == NORMAL) || ((*tar) -> type == CONTIGUOUS)){
// if the file isn't already in the tar file, copy the contents in
if (!tarred){
int f = open((*tar) -> name, O_RDONLY);
if (f < 0){
WRITE_ERROR(stderr, "Error: Could not open %s\n", files[i]);
}
int r = 0;
while ((r = read_size(f, buf, 512)) > 0){
if (write_size(fd, buf, r) != r){
RC_ERROR(stderr, "Error: Could not write to archive: %s\n", strerror(rc));
}
}
close(f);
}
}
// pad data to fill block
const unsigned int size = oct2uint((*tar) -> size, 11);
const unsigned int pad = 512 - size % 512;
if (pad != 512){
for(unsigned int j = 0; j < pad; j++){
if (write_size(fd, "\0", 1) != 1){
WRITE_ERROR(stderr, "Error: Could not write padding data\n");
}
}
*offset += pad;
}
*offset += size;
tar = &((*tar) -> next);
}
// add metadata size
*offset += 512;
}
return 0;
}
int extract_entry(const int fd, struct tar_t * entry, const char verbosity){
V_PRINT(stdout, "%s\n", entry -> name);
if ((entry -> type == REGULAR) || (entry -> type == NORMAL) || (entry -> type == CONTIGUOUS)){
// create intermediate directories
size_t len = strlen(entry -> name);
char * path = calloc(len + 1, sizeof(char));
strncpy(path, entry -> name, len);
// remove file from path
while (--len && (path[len] != '/'));
path[len] = '\0'; // if nothing was found, path is terminated
if (recursive_mkdir(path, DEFAULT_DIR_MODE, verbosity) < 0){
V_PRINT(stderr, "Error: Could not make directory %s\n", path);
free(path);
return -1;
}
free(path);
if ((entry -> type == REGULAR) || (entry -> type == NORMAL) || (entry -> type == CONTIGUOUS)){
// create file
const unsigned int size = oct2uint(entry -> size, 11);
int f = open(entry -> name, O_WRONLY | O_CREAT | O_TRUNC, oct2uint(entry -> mode, 7) & 0777);
if (f < 0){
RC_ERROR(stderr, "Error: Unable to open file %s: %s\n", entry -> name, strerror(rc));
}
// move archive pointer to data location
if (lseek(fd, 512 + entry -> begin, SEEK_SET) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Bad index: %s\n", strerror(rc));
}
// copy data to file
char buf[512];
int got = 0;
while (got < size){
int r;
if ((r = read_size(fd, buf, MIN(size - got, 512))) < 0){
EXIST_ERROR(stderr, "Error: Unable to read from archive: %s\n", strerror(rc));
}
if (write(f, buf, r) != r){
EXIST_ERROR(stderr, "Error: Unable to write to %s: %s\n", entry -> name, strerror(rc));
}
got += r;
}
close(f);
}
else if ((entry -> type == CHAR) || (entry -> type == BLOCK)){
if (mknod(entry -> name, oct2uint(entry -> mode, 7), (oct2uint(entry -> major, 7) << 20) | oct2uint(entry -> minor, 7)) < 0){
EXIST_ERROR(stderr, "Error: Unable to make device %s: %s\n", entry -> name, strerror(rc));
}
}
}
else if (entry -> type == HARDLINK){
if (link(entry -> link_name, entry -> name) < 0){
EXIST_ERROR(stderr, "Error: Unable to create hardlink %s: %s\n", entry -> name, strerror(rc));
}
}
else if (entry -> type == SYMLINK){
if (symlink(entry -> link_name, entry -> name) < 0){
EXIST_ERROR(stderr, "Error: Unable to make symlink %s: %s\n", entry -> name, strerror(rc));
}
}
else if (entry -> type == CHAR){
if (mknod(entry -> name, S_IFCHR | (oct2uint(entry -> mode, 7) & 0777), (oct2uint(entry -> major, 7) << 20) | oct2uint(entry -> minor, 7)) < 0){
EXIST_ERROR(stderr, "Error: Unable to create directory %s: %s\n", entry -> name, strerror(rc));
}
}
else if (entry -> type == BLOCK){
if (mknod(entry -> name, S_IFBLK | (oct2uint(entry -> mode, 7) & 0777), (oct2uint(entry -> major, 7) << 20) | oct2uint(entry -> minor, 7)) < 0){
EXIST_ERROR(stderr, "Error: Unable to create directory %s: %s\n", entry -> name, strerror(rc));
}
}
else if (entry -> type == DIRECTORY){
if (recursive_mkdir(entry -> name, oct2uint(entry -> mode, 7) & 0777, verbosity) < 0){
EXIST_ERROR(stderr, "Error: Unable to create directory %s: %s\n", entry -> name, strerror(rc));
}
}
else if (entry -> type == FIFO){
if (mkfifo(entry -> name, oct2uint(entry -> mode, 7) & 0777) < 0){
EXIST_ERROR(stderr, "Error: Unable to make pipe %s: %s\n", entry -> name, strerror(rc));
}
}
return 0;
}
int tar_remove(const int fd, struct tar_t ** archive, const size_t filecount, const char * files[], const char verbosity){
if (fd < 0){
return -1;
}
// archive has to exist
if (!archive || !*archive){
return -1;
}
if (filecount && !files){
return -1;
}
if (!filecount){
return 0;
}
// get file permissions
struct stat st;
if (fstat(fd, &st)){
RC_ERROR(stderr, "Error: Unable to stat archive: %s\n", strerror(rc));
}
// reset offset of original file
if (lseek(fd, 0, SEEK_SET) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Unable to seek file: %s\n", strerror(rc));
}
// find first file to be removed that does not exist
int ret = 0;
char * bad = calloc(filecount, sizeof(char));
for(int i = 0; i < filecount; i++){
if (!exists(*archive, files[i], 0)){
V_PRINT(stderr, "Error: %s not found in archive\n", files[i]);
bad[i] = 1;
ret = -1;
}
}
unsigned int read_offset = 0;
unsigned int write_offset = 0;
struct tar_t * prev = NULL;
struct tar_t * curr = *archive;
while(curr){
// get original size
int total = 512;
if ((curr -> type == REGULAR) || (curr -> type == NORMAL) || (curr -> type == CONTIGUOUS)){
total += oct2uint(curr -> size, 11);
if (total % 512){
total += 512 - (total % 512);
}
}
const int match = check_match(curr, filecount, bad, files);
if (match < 0){
V_PRINT(stderr, "Error: Match failed\n");
return -1;
}
else if (!match){
// if the old data is not in the right place, move it
if (write_offset < read_offset){
int got = 0;
while (got < total){
// go to old data
if (lseek(fd, read_offset, SEEK_SET) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Cannot seek: %s\n", strerror(rc));
}
char buf[512];
// copy chunk out
if (read_size(fd, buf, 512) != 512){// guarenteed 512 octets
V_PRINT(stderr, "Error: Read error\n");
return -1;
}
// go to new position
if (lseek(fd, write_offset, SEEK_SET) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Cannot seek: %s\n", strerror(rc));
}
// write data in
if (write_size(fd, buf, 512) != 512){
V_PRINT(stderr, "Error: Write error\n");
return -1;
}
// increment offsets
got += 512;
read_offset += 512;
write_offset += 512;
}
}
else{
read_offset += total;
write_offset += total;
// skip past data
if (lseek(fd, read_offset, SEEK_SET) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Cannot seek: %s\n", strerror(rc));
}
}
prev = curr;
curr = curr -> next;
}
else{// if name matches, skip the data
struct tar_t * tmp = curr;
if (!prev){
*archive = curr -> next;
if (*archive){
(*archive) -> begin = 0;
}
}
else{
prev -> next = curr -> next;
if (prev -> next){
prev -> next -> begin = curr -> begin;
}
}
curr = curr -> next;
free(tmp);
// next read starts after current entry
read_offset += total;
}
}
// resize file
if (ftruncate(fd, write_offset) < 0){
RC_ERROR(stderr, "Error: Could not truncate file: %s\n", strerror(rc));
}
// add end data
if (write_end_data(fd, write_offset, verbosity) < 0){
V_PRINT(stderr, "Error: Could not close file\n");
}
return ret;
}
static void python_process_event(int cpu, void *data,
int size __unused,
unsigned long long nsecs, char *comm)
{
PyObject *handler, *retval, *context, *t, *obj, *dict = NULL;
static char handler_name[256];
struct format_field *field;
unsigned long long val;
unsigned long s, ns;
struct event *event;
unsigned n = 0;
int type;
int pid;
t = PyTuple_New(MAX_FIELDS);
if (!t)
Py_FatalError("couldn't create Python tuple");
type = trace_parse_common_type(data);
event = find_cache_event(type);
if (!event)
die("ug! no event found for type %d", type);
pid = trace_parse_common_pid(data);
sprintf(handler_name, "%s__%s", event->system, event->name);
handler = PyDict_GetItemString(main_dict, handler_name);
if (handler && !PyCallable_Check(handler))
handler = NULL;
if (!handler) {
dict = PyDict_New();
if (!dict)
Py_FatalError("couldn't create Python dict");
}
s = nsecs / NSECS_PER_SEC;
ns = nsecs - s * NSECS_PER_SEC;
scripting_context->event_data = data;
context = PyCObject_FromVoidPtr(scripting_context, NULL);
PyTuple_SetItem(t, n++, PyString_FromString(handler_name));
PyTuple_SetItem(t, n++,
PyCObject_FromVoidPtr(scripting_context, NULL));
if (handler) {
PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
PyTuple_SetItem(t, n++, PyInt_FromLong(s));
PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
PyTuple_SetItem(t, n++, PyInt_FromLong(pid));
PyTuple_SetItem(t, n++, PyString_FromString(comm));
} else {
PyDict_SetItemString(dict, "common_cpu", PyInt_FromLong(cpu));
PyDict_SetItemString(dict, "common_s", PyInt_FromLong(s));
PyDict_SetItemString(dict, "common_ns", PyInt_FromLong(ns));
PyDict_SetItemString(dict, "common_pid", PyInt_FromLong(pid));
PyDict_SetItemString(dict, "common_comm", PyString_FromString(comm));
}
for (field = event->format.fields; field; field = field->next) {
if (field->flags & FIELD_IS_STRING) {
int offset;
if (field->flags & FIELD_IS_DYNAMIC) {
offset = *(int *)(data + field->offset);
offset &= 0xffff;
} else
offset = field->offset;
obj = PyString_FromString((char *)data + offset);
} else { /* FIELD_IS_NUMERIC */
val = read_size(data + field->offset, field->size);
if (field->flags & FIELD_IS_SIGNED) {
if ((long long)val >= LONG_MIN &&
(long long)val <= LONG_MAX)
obj = PyInt_FromLong(val);
else
obj = PyLong_FromLongLong(val);
} else {
if (val <= LONG_MAX)
obj = PyInt_FromLong(val);
else
obj = PyLong_FromUnsignedLongLong(val);
}
}
if (handler)
PyTuple_SetItem(t, n++, obj);
else
PyDict_SetItemString(dict, field->name, obj);
}
if (!handler)
PyTuple_SetItem(t, n++, dict);
if (_PyTuple_Resize(&t, n) == -1)
Py_FatalError("error resizing Python tuple");
if (handler) {
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die(handler_name);
} else {
handler = PyDict_GetItemString(main_dict, "trace_unhandled");
if (handler && PyCallable_Check(handler)) {
retval = PyObject_CallObject(handler, t);
if (retval == NULL)
handler_call_die("trace_unhandled");
}
Py_DECREF(dict);
}
Py_DECREF(t);
}
int quicktime_atom_read_header(quicktime_t *file, quicktime_atom_t *atom)
{
int result = 0;
char header[10];
if(file->use_avi)
{
reset(atom);
atom->start = quicktime_position(file);
if(!quicktime_read_data(file, header, HEADER_LENGTH)) return 1;
atom->type[0] = header[0];
atom->type[1] = header[1];
atom->type[2] = header[2];
atom->type[3] = header[3];
atom->type[4] = 0;
atom->size =
(((unsigned char)header[4]) ) |
(((unsigned char)header[5]) << 8 ) |
(((unsigned char)header[6]) << 16) |
(((unsigned char)header[7]) << 24);
atom->end = quicktime_add3(atom->start, atom->size, 8);
}
else
{
int64_t size2;
reset(atom);
atom->start = quicktime_position(file);
if(!quicktime_read_data(file, header, HEADER_LENGTH)) return 1;
result = read_type(header, atom->type);
atom->size = read_size(header);
atom->end = atom->start + atom->size;
/*
* printf("quicktime_atom_read_header 1 %c%c%c%c start %llx size %llx end %llx ftell %llx %llx\n",
* atom->type[0], atom->type[1], atom->type[2], atom->type[3],
* atom->start, atom->size, atom->end,
* file->file_position,
* (int64_t)FTELL(file->stream));
*/
/* Skip placeholder atom */
if(quicktime_match_32(atom->type, "wide"))
{
atom->start = quicktime_position(file);
reset(atom);
if(!quicktime_read_data(file, header, HEADER_LENGTH)) return 1;
result = read_type(header, atom->type);
atom->size -= 8;
if(atom->size <= 0)
{
/* Wrapper ended. Get new atom size */
atom->size = read_size(header);
}
atom->end = atom->start + atom->size;
}
else
/* Get extended size */
if(atom->size == 1)
{
if(!quicktime_read_data(file, header, HEADER_LENGTH)) return 1;
atom->size = read_size64(header);
atom->end = atom->start + atom->size;
/*
* printf("quicktime_atom_read_header 2 %c%c%c%c start %llx size %llx end %llx ftell %llx\n",
* atom->type[0], atom->type[1], atom->type[2], atom->type[3],
* atom->start, atom->size, atom->end,
* file->file_position);
*/
}
}
return result;
}
int tar_read(const int fd, struct tar_t ** archive, const char verbosity){
if (fd < 0){
return -1;
}
if (!archive || *archive){
return -1;
}
unsigned int offset = 0;
int count = 0;
struct tar_t ** tar = archive;
char update = 1;
for(count = 0; ; count++){
*tar = malloc(sizeof(struct tar_t));
if (update && (read_size(fd, (*tar) -> block, 512) != 512)){
V_PRINT(stderr, "Error: Bad read. Stopping\n");
tar_free(*tar);
*tar = NULL;
break;
}
update = 1;
// if current block is all zeros
if (iszeroed((*tar) -> block, 512)){
if (read_size(fd, (*tar) -> block, 512) != 512){
V_PRINT(stderr, "Error: Bad read. Stopping\n");
tar_free(*tar);
*tar = NULL;
break;
}
// check if next block is all zeros as well
if (iszeroed((*tar) -> block, 512)){
tar_free(*tar);
*tar = NULL;
// skip to end of record
if (lseek(fd, RECORDSIZE - (offset % RECORDSIZE), SEEK_CUR) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Unable to seek file: %s\n", strerror(rc));
}
break;
}
update = 0;
}
// set current entry's file offset
(*tar) -> begin = offset;
// skip over data and unfilled block
unsigned int jump = oct2uint((*tar) -> size, 11);
if (jump % 512){
jump += 512 - (jump % 512);
}
// move file descriptor
offset += 512 + jump;
if (lseek(fd, jump, SEEK_CUR) == (off_t) (-1)){
RC_ERROR(stderr, "Error: Unable to seek file: %s\n", strerror(rc));
}
// ready next value
tar = &((*tar) -> next);
}
return count;
}