On 21.11.2015 5:29, David Sanderson wrote: > Thank you for pointing out the possibility of fdopen() setting > FD_CLOEXEC on the parent's end of the pipe if the mode string contains > an 'e'. This is indeed documented on popen(3). > > However, note that popen() uses pipe2(pdes, O_CLOEXEC) to create the > pipe -- so both ends of the pipe start out with FD_CLOEXEC set. > > If the caller uses popen() with "re" or "we", the fdopen() code will > simply set FD_CLOEXEC on the parent's end of the pipe _again_. So > moving the fdopen() prior to the fork() doesn't have any net effect on > the file descriptors the child process receives, even in the face of > popen() with "re" or "we". > > Does this address your concerns?
Yes, it is safe in this case. Thanx. -- http://ache.vniz.net/ _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "[email protected]"
