Hi, how about using O_CLOEXEC when opening files or sockets?
From the manual page open(2):
O_CLOEXEC (Since Linux 2.6.23)
Enable the close-on-exec flag for the new file descriptor.
Specifying this flag permits a program to avoid additional
fcntl(2) F_SETFD operations to set the FD_CLOEXEC flag. Addi-
tionally, use of this flag is essential in some multithreaded
programs since using a separate fcntl(2) F_SETFD operation to
set the FD_CLOEXEC flag does not suffice to avoid race condi-
tions where one thread opens a file descriptor at the same time
as another thread does a fork(2) plus execve(2).
Bye, Jörg.
--
Damit das Mögliche entsteht, muß immer wieder das Unmögliche versucht
werden. (Hermann Hesse)
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