jeff@voder.UUCP (Jeff Gilliam) (11/21/86)
Index: bin/pr.c 4.3BSD
Description:
If a file consists of more than BUFS characters (9000 on 4.3BSD),
and the BUFS'th character begins a new page, that character will
be mis-printed.
Repeat-By:
The following script will tickle the bug on 4.3 (4.2 has a different
BUFS and needs a different input file to demonstrate the problem).
awk '\
BEGIN { for (i=0; i<95; i++) \
printf("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"); \
for (i=0; i<73; i++) \
printf("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n"); \
printf("bbbbbb\n"); \
} \
{ if (1) exit; }' < /dev/null > /tmp/test$$
pr /tmp/test$$ | sed -n '/Page 4/,$p'
rm -f /tmp/test$$
Fix:
Index: pr.c
diff -c -r1.1 -r1.2
*** /tmp/,RCSt1018209 Fri Nov 21 01:27:41 1986
--- /tmp/,RCSt2018209 Fri Nov 21 01:27:42 1986
***************
*** 228,234 ****
if (mflg==0) {
colp[ncol]--;
if (colp[ncol] < buffer)
! colp[ncol] = &buffer[BUFS];
}
line = 0;
if (ntflg==0) {
--- 228,234 ----
if (mflg==0) {
colp[ncol]--;
if (colp[ncol] < buffer)
! colp[ncol] = &buffer[BUFS-1];
}
line = 0;
if (ntflg==0) {
--
Jeff Gilliam {ucbvax,pyramid,nsc}!voder!jeff