I forgot to mention that my "umask" is the standard 022... The man page says that for directories with the ACLs, it is ignored.
So in my code bind() wouldn't have created the socket with 0777, and that's fine! Which is why I call fchmod() to fix the permissions up, and THAT does not work. BTW, should I have called chmod() instead (which is what the command line chmod does), the permissions would have been set correctly on the socket file, but fchmod() would have misreported them again (this time looks like a carryover from an earlier umask(0))! $ diff sun1.c sun.c 37c37 < if (chmod(SOCKET, 0666) < 0) --- > if (fchmod(s, 0666) < 0) $ pwd /cygdrive/g/cygwin $ mkdir subdir $ cd subdir $ ~/sun1 fstat mode = 140777 stat mode = 140666 $ ls -la total 17 drwxrwxr-x+ 1 ANTON None 0 Jul 2 12:06 ./ drwxrwx---+ 1 ANTON None 0 Jul 2 12:06 ../ srw-rw-rw-+ 1 ANTON None 0 Jul 2 12:06 .socket= Anton Lavrentiev Contractor NIH/NLM/NCBI -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple