GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, bool has_count, int64_t count, Error **errp) { GuestFileWrite *write_data = NULL; guchar *buf; gsize buf_len; int write_count; GuestFileHandle *gfh = guest_file_handle_find(handle, errp); FILE *fh; if (!gfh) { return NULL; } fh = gfh->fh; buf = g_base64_decode(buf_b64, &buf_len); if (!has_count) { count = buf_len; } else if (count < 0 || count > buf_len) { error_setg(errp, "value '%" PRId64 "' is invalid for argument count", count); g_free(buf); return NULL; } write_count = fwrite(buf, 1, count, fh); if (ferror(fh)) { error_setg_errno(errp, errno, "failed to write to file"); slog("guest-file-write failed, handle: %" PRId64, handle); } else { write_data = g_malloc0(sizeof(GuestFileWrite)); write_data->count = write_count; write_data->eof = feof(fh); } g_free(buf); clearerr(fh); return write_data; }