56 	char *s = "";  in verbose_error()  local
79 		s = " at ";  in verbose_error()
84 			sparse_print_verbose("EOF while reading file%s%s\n", s, at);  in verbose_error()
88 			sparse_print_verbose("Invalid sparse file format%s%s\n", s, at);  in verbose_error()
91 					s, at);  in verbose_error()
93 			sparse_print_verbose("Unknown error %d%s%s\n", err, s, at);  in verbose_error()
101 static int process_raw_chunk(struct sparse_file *s, unsigned int chunk_size,  in process_raw_chunk()  argument
107 	unsigned int len = blocks * s->block_size;  in process_raw_chunk()
109 	if (chunk_size % s->block_size != 0) {  in process_raw_chunk()
113 	if (chunk_size / s->block_size != blocks) {  in process_raw_chunk()
117 	ret = sparse_file_add_fd(s, fd, offset, len, block);  in process_raw_chunk()
139 static int process_fill_chunk(struct sparse_file *s, unsigned int chunk_size,  in process_fill_chunk()  argument
144 	int64_t len = (int64_t)blocks * s->block_size;  in process_fill_chunk()
158 	ret = sparse_file_add_fill(s, fill_val, len, block);  in process_fill_chunk()
180 static int process_skip_chunk(struct sparse_file *s, unsigned int chunk_size,  in process_skip_chunk()  argument
189 	        int64_t len = (int64_t)blocks * s->block_size;  in process_skip_chunk()
223 static int process_chunk(struct sparse_file *s, int fd, off64_t offset,  in process_chunk()  argument
234 			ret = process_raw_chunk(s, chunk_data_size, fd, offset,  in process_chunk()
237 				verbose_error(s->verbose, ret, "data block at %" PRId64, offset);  in process_chunk()
242 			ret = process_fill_chunk(s, chunk_data_size, fd,  in process_chunk()
245 				verbose_error(s->verbose, ret, "fill block at %" PRId64, offset);  in process_chunk()
250 			ret = process_skip_chunk(s, chunk_data_size, fd,  in process_chunk()
254 					verbose_error(s->verbose, ret, "skip block at %" PRId64, offset);  in process_chunk()
262 				verbose_error(s->verbose, -EINVAL, "crc block at %" PRId64,  in process_chunk()
268 			verbose_error(s->verbose, -EINVAL, "unknown block %04X at %" PRId64,  in process_chunk()
275 static int sparse_file_read_sparse(struct sparse_file *s, int fd, bool crc)  in sparse_file_read_sparse()  argument
341 		ret = process_chunk(s, fd, offset, sparse_header.chunk_hdr_sz, &chunk_header,  in sparse_file_read_sparse()
357 static int sparse_file_read_normal(struct sparse_file *s, int fd)  in sparse_file_read_normal()  argument
360 	uint32_t *buf = malloc(s->block_size);  in sparse_file_read_normal()
362 	int64_t remain = s->len;  in sparse_file_read_normal()
373 		to_read = min(remain, s->block_size);  in sparse_file_read_normal()
381 		if (to_read == s->block_size) {  in sparse_file_read_normal()
383 			for (i = 1; i < s->block_size / sizeof(uint32_t); i++) {  in sparse_file_read_normal()
395 			sparse_file_add_fill(s, buf[0], to_read, block);  in sparse_file_read_normal()
397 			sparse_file_add_fd(s, fd, offset, to_read, block);  in sparse_file_read_normal()
409 int sparse_file_read(struct sparse_file *s, int fd, bool sparse, bool crc)  in sparse_file_read()  argument
416 		return sparse_file_read_sparse(s, fd, crc);  in sparse_file_read()
418 		return sparse_file_read_normal(s, fd);  in sparse_file_read()
427 	struct sparse_file *s;  in sparse_file_import()  local
454 	s = sparse_file_new(sparse_header.blk_sz, len);  in sparse_file_import()
455 	if (!s) {  in sparse_file_import()
463 		sparse_file_destroy(s);  in sparse_file_import()
467 	s->verbose = verbose;  in sparse_file_import()
469 	ret = sparse_file_read(s, fd, true, crc);  in sparse_file_import()
471 		sparse_file_destroy(s);  in sparse_file_import()
475 	return s;  in sparse_file_import()
480 	struct sparse_file *s;  in sparse_file_import_auto()  local
484 	s = sparse_file_import(fd, verbose, crc);  in sparse_file_import_auto()
485 	if (s) {  in sparse_file_import_auto()
486 		return s;  in sparse_file_import_auto()
496 	s = sparse_file_new(4096, len);  in sparse_file_import_auto()
497 	if (!s) {  in sparse_file_import_auto()
501 	ret = sparse_file_read_normal(s, fd);  in sparse_file_import_auto()
503 		sparse_file_destroy(s);  in sparse_file_import_auto()
507 	return s;  in sparse_file_import_auto()