Hi, it looks like there is file handle leak in libnftables. My program fails on "Too many open files" on creating socket in another library after longer period of time. I've checked lsof -p PID to check number of open files and there is increasing number of files I pass to that function. Currently FD for file passed into libnftables opens every time I call the function but never closes. (approximately 3 times per minute in my case) I've tried to add fclose(f) into scanner.l file after scanner_push_file call, but it crashes whole program so it probably is not the main fd created by fopen which causes problems, but something deeper inside. And yes, I've double checked I close that file after writing into it. I suppose it won't open at all if I didn't close the file properly. Can you please check it? I need "batch" functionality since I create thousands of lines and calling one command after other is something I'm trying to avoid. I've found some fork of nftables with batch support but I didn't find it anywhere in official git repository. I also use latest versions - git - of libmnl, libnftnl, nftables. I don't use json files, file is parsed using bison. https://pastebin.com/dkpMAGze ---- S pozdravem / Best Regards Vaclav Zindulka
