Aittvax.144
net.4bsd-bugs,net.v7-bugs
utzoo!decvax!ittvax!swatt
Wed Nov 25 18:33:19 1981
dd(1) bug
Wed Nov 25 18:29:27 EST 1981 (reported by swatt)
[ ] Bug in dd(1) "swab" routine prevents swabbing the bytes in the
last word if the wordsize of a file is odd. Fix is:
-----------------------------------------------------------------
cp /usr/src/cmd/dd.c /tmp/upd.$$.tmp ; chmod +w /tmp/upd.$$.tmp
ed - /tmp/upd.$$.tmp <<\!XXFUNNYXX & C="((ibc" ~1) 332C>>1);
.
1c
static char *sccsid = "@(#)dd.c 4.2 (ITT) 11/25/81";
.
w
q
!xxFUNNYxx
diff /usr/src/cmd/dd.c /tmp/upd.$$.tmp >/tmp/upd.$$.dif
if cmp - /tmp/upd.$$.dif <<\!XXFUNNYXX STATIC ; < CHAR 1C1 --- *SCCSID="@(#)dd.c 4.1 (Berkeley) 10/1/80"> static char *sccsid = "@(#)dd.c 4.2 (ITT) 11/25/81";
332c332
>1) & ~1;
---
> c = ((ibc & ~1)>>1);
!xxFUNNYxx
then
: 'compare equal, ok'
rm -f dd.c
cp /tmp/upd.$$.tmp dd.c ; chmod a-w dd.c
else
echo "Old source file not same version;" \
"use diff listings by hand"
fi
rm -f /tmp/upd.$$.tmp /tmp/upd.$$.dif
-----------------------------------------------------------------
[ /bin/dd:
dd.c 4.1 (Berkeley) 10/1/80 ]
-----------------------------------------------------------------
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