Andrew, > From: Ulrich Drepper <drepper@xxxxxxxxxx> > > Introduce a new accept4() system call. The addition of this system call > matches analogous changes in 2.6.27 (dup3(), evenfd2(), signalfd4(), > inotify_init1(), epoll_create1(), pipe2()) which added new system calls > that differed from analogous traditional system calls in adding a flags > argument that can be used to access additional functionality. > > The accept4() system call is exactly the same as accept(), except that it > adds a flags bit-mask argument. Two flags are initially implemented. > (Most of the new system calls in 2.6.27 also had both of these flags.) Add a para break here. > SOCK_CLOEXEC causes the close-on-exec (FD_CLOEXEC) flag to be enabled for > the new file descriptor returned by accept4(). This is a useful security > feature to avoid leaking information in a multithreaded program where one > thread is doing an accept() at the same time as another thread is doing a > fork() plus exec(). > This para break is in the wrong place. > More details here: http://udrepper.livejournal.com/20407.html "Secure File > Descriptor Handling", Ulrich Drepper) The other flag is SOCK_NONBLOCK, The para break should actually be at the sentence break in the previous line. Cheers, Michael -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
