Eric Blake [ebl...@redhat.com] wrote: | > | > So if bash is the one creating its file descriptors, there's no need to | > use R/M/W since it knows what the state of them are. | | No, bash cannot reasonably know what the implementation's default bit | state is, and blindly setting all other bits to zero is very possibly a | bug, and easy enough to avoid by using the full R/M/W.
Besides, if user sets a flag on the fd and execs bash, bash would clobber the flag. IOW, assuming that bash is the one creating the fd is not always safe right ? Thanks, Sukadev
