static void tar_import_job_on_progress(ImportJob *j) {
TarImport *i;
assert(j);
assert(j->userdata);
i = j->userdata;
tar_import_report_progress(i, TAR_DOWNLOADING);
}
static int tar_import_process(TarImport *i) {
ssize_t l;
int r;
assert(i);
assert(i->buffer_size < sizeof(i->buffer));
l = read(i->input_fd, i->buffer + i->buffer_size, sizeof(i->buffer) - i->buffer_size);
if (l < 0) {
if (errno == EAGAIN)
return 0;
r = log_error_errno(errno, "Failed to read input file: %m");
goto finish;
}
if (l == 0) {
if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {
log_error("Premature end of file: %m");
r = -EIO;
goto finish;
}
r = tar_import_finish(i);
goto finish;
}
i->buffer_size += l;
if (i->compress.type == IMPORT_COMPRESS_UNKNOWN) {
r = import_uncompress_detect(&i->compress, i->buffer, i->buffer_size);
if (r < 0) {
log_error("Failed to detect file compression: %m");
goto finish;
}
if (r == 0) /* Need more data */
return 0;
r = tar_import_fork_tar(i);
if (r < 0)
goto finish;
}
r = import_uncompress(&i->compress, i->buffer, i->buffer_size, tar_import_write, i);
if (r < 0) {
log_error_errno(r, "Failed to decode and write: %m");
goto finish;
}
i->written_compressed += i->buffer_size;
i->buffer_size = 0;
tar_import_report_progress(i);
return 0;
finish:
if (i->on_finished)
i->on_finished(i, r, i->userdata);
else
sd_event_exit(i->event, r);
return 0;
}
static void tar_import_job_on_finished(ImportJob *j) {
TarImport *i;
int r;
assert(j);
assert(j->userdata);
i = j->userdata;
if (j->error != 0) {
if (j == i->checksum_job)
log_error_errno(j->error, "Failed to retrieve SHA256 checksum, cannot verify. (Try --verify=no?)");
else if (j == i->signature_job)
log_error_errno(j->error, "Failed to retrieve signature file, cannot verify. (Try --verify=no?)");
else
log_error_errno(j->error, "Failed to retrieve image file. (Wrong URL?)");
r = j->error;
goto finish;
}
/* This is invoked if either the download completed
* successfully, or the download was skipped because we
* already have the etag. */
if (!tar_import_is_done(i))
return;
j->disk_fd = safe_close(i->tar_job->disk_fd);
if (i->tar_pid > 0) {
r = wait_for_terminate_and_warn("tar", i->tar_pid, true);
i->tar_pid = 0;
if (r < 0)
goto finish;
}
if (!i->tar_job->etag_exists) {
/* This is a new download, verify it, and move it into place */
tar_import_report_progress(i, TAR_VERIFYING);
r = import_verify(i->tar_job, i->checksum_job, i->signature_job);
if (r < 0)
goto finish;
tar_import_report_progress(i, TAR_FINALIZING);
r = import_make_read_only(i->temp_path);
if (r < 0)
goto finish;
if (rename(i->temp_path, i->final_path) < 0) {
r = log_error_errno(errno, "Failed to rename to final image name: %m");
goto finish;
}
free(i->temp_path);
i->temp_path = NULL;
}
tar_import_report_progress(i, TAR_COPYING);
r = tar_import_make_local_copy(i);
if (r < 0)
goto finish;
r = 0;
finish:
if (i->on_finished)
i->on_finished(i, r, i->userdata);
else
sd_event_exit(i->event, r);
}
