On Mon, Feb 15, 2010 at 4:55 PM, Garrett Cooper <yanef...@gmail.com> wrote: > Hi Hackers, > I accidentally reproduced the following after executing read > properly in a pipeline with make:
s/properly/improperly/ > [garrc...@garrcoop-fbsd /usr/home/garrcoop]$ read DESTDIR SRCCONF < > /usr/bin/make -V DESTDIR -V SRCCONF > bash: read: `-V': not a valid identifier > [garrc...@garrcoop-fbsd /usr/home/garrcoop]$ echo $DESTDIR > ELF > [garrc...@garrcoop-fbsd /usr/home/garrcoop]$ hexdump -C foo > 00000000 7f 45 4c 46 01 01 01 0a |.ELF....| > 00000008 > [garrc...@garrcoop-fbsd /usr/home/garrcoop]$ And just for completeness because I executed the above directly in bash... [r...@garrcoop-fbsd /usr/home/garrcoop]# sh -c 'read DESTDIR SRCCONF < /usr/bin/make -V DESTDIR -V SRCCONF; echo $DESTDIR > foo; hexdump -C foo' read: -V: bad variable name 00000000 7f 45 4c 46 01 01 01 0a |.ELF....| 00000008 > Is this an issue to be concerned about apart from cosmetic noise, > i.e. potential buffer access problem? I see the same garbage from > bash/coreutils on RHEL 4.6 as well as read(1) and /bin/sh on FreeBSD > with RELENG_8, so the issue appears to be consistent on multiple > OSes... Thanks, -Garrett _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"