return 0;
if (src == 0 && dst == 0 && len == 0) {
- len = copy_src_filesize(fd);
- copy_dst_truncate();
+ off64_t sz;
+
+ sz = copy_src_filesize(fd);
+ if (sz < 0 || (unsigned long long)sz > SIZE_MAX) {
+ ret = 1;
+ goto out;
+ }
+ len = sz;
+
+ ret = copy_dst_truncate();
+ if (ret < 0) {
+ ret = 1;
+ goto out;
+ }
}
ret = copy_file_range_cmd(fd, &src, &dst, len);
+out:
close(fd);
return ret;
}