ag@portnoy.CTS.COM (Keith Gabryelski) (04/02/88)
See previous post for an explanation of the bug and a test program.
This binary patch is for 286 SCO Xenix users.
I could have just as easily posted just the new crypt.o, but to avoid
any legal problems I made it so that you have to have the old broken
crypt.o in order to get the new one.
The bug was found and fixed by myself Michael Ditto (ford@kenobi.UUCP)
using only our bare hands and adb (Well, with some help from M-x
compare-windows, etc.).
#! /bin/sh
# This is a shell archive, meaning:
# 1. Remove everything above the #! /bin/sh line.
# 2. Save the resulting text in a file.
# 3. Execute the file with /bin/sh (not csh) to create the files:
# ORIGScrypt.o (A copy of the old (broken) Scrypt.o)
# ORIGMcrypt.o (A copy of the old (broken) Mcrypt.o)
# ORIGLcrypt.o (A copy of the old (broken) Lcrypt.o)
# NEWScrypt.o (A copy of the new (fixed) Scrypt.o)
# NEWMcrypt.o (A copy of the new (fixed) Mcrypt.o)
# NEWLcrypt.o (A copy of the new (fixed) Lcrypt.o)
# The new [SML]crypt.o will also be installed in /lib/[SML]libc.a
#
# This archive created: Fri Apr 1 10:17:23 1988
export PATH; PATH=/bin:$PATH
if test -f 'Lpatch'
then
echo shar: will not over-write existing file "'Lpatch'"
else
cat << \SHAR_EOF > 'Lpatch'
begin 666 Lpatch
M ( #@ R#ZPN(!P!-4VT03LMKB 6?1=('Q4N("9],TP4.#Q)1V!^(
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M$ $41Y !14514$"&P]6%TL1$0=77 *#:5%,*7P0#+.QDFP,!"= $!4Y1
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M("$A(2$@(" @(R,C(R @(" ! 0$!'14.!@,# # P PP3"1D/% @$
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M !' !@Y ( B $$ #A;)VO;4TLUS]![ (9_Q&L%"VJ'4(D?F01+:44N
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# >)W
end
SHAR_EOF
fi # end of overwriting check
if test -f 'Mpatch'
then
echo shar: will not over-write existing file "'Mpatch'"
else
cat << \SHAR_EOF > 'Mpatch'
begin 666 Mpatch
M ( #@ R#ZPN(!P!-4VT03LMKB 6?1=('Q4N("9]-TP0.#Q)0V!Z(
M")]-TP0."BC+;(@&G3#P?X39VI8U!D1!%@@''U\37AH"#0\ :Q<+4 87$$%&
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MP9T! ?:8!P=/ 0J? %"\@,(06N=D@$!FV4+_P8 :F8\@)6GPP" @("!D(
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M'V\O$! 0$!$1$1$0$! 0$Q,3$Q 0$! 1$1$1$! 0$!<7%Q<0$! 0$1$1$1 0
M$! 3$Q,3$! 0$ @@$#@@(" @(R,C(R @(" A(2$A(" @("<G)R<# P,#(" @
M("$A(2$@(" @(R,C(R @(" ! 0$!'14.!@,# # P PP3"1D/% @$
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M?@^?LHF5$&#[ @ 40 /7YK(7BA[-%?6+W67Q/ L\'Q0OW11])
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end
SHAR_EOF
fi # end of overwriting check
if test -f 'Spatch'
then
echo shar: will not over-write existing file "'Spatch'"
else
cat << \SHAR_EOF > 'Spatch'
begin 666 Spatch
M ( #@ R#ZPN(!P!-4VT03LMKB 6?1=('Q4N("9]3TQH.#Q)6V!B(
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#D"1T
end
SHAR_EOF
fi # end of overwriting check
if test -f 'xorit.c'
then
echo shar: will not over-write existing file "'xorit.c'"
else
cat << \SHAR_EOF > 'xorit.c'
#include <stdio.h>
#define DEC(c) (((c) - ' ') & 077)
#define xorit(ch) putchar((ch)^getc(orig))
main(argc, argv)
int argc;
char *argv[];
{
int n;
FILE *orig;
char a, b, c, d;
if (argc<3)
{
fprintf(stderr, "Usage: xorit <originalfile> <patchfile>\n");
exit(-1);
}
if ((orig=fopen(argv[1], "r")) == NULL)
{
perror(argv[1]);
exit(1);
}
if (freopen(argv[2], "r", stdin) == NULL)
{
perror(argv[2]);
exit(1);
}
if (scanf("begin %*o %*s "))
{
fputs("xorit: bad uudecode input\n", stderr);
exit(1);
}
while ((n=getchar()) != EOF && (n=DEC(n))!=0)
{
while (n>0)
{
a = DEC(getchar());
b = DEC(getchar());
c = DEC(getchar());
d = DEC(getchar());
if (n-- > 0) xorit(a << 2 | b >> 4);
if (n-- > 0) xorit(b << 4 | c >> 2);
if (n-- > 0) xorit(c << 6 | d);
}
if ( (n=getchar()) != '\n' )
{
fputs("xorit: bad uudecode input\n", stderr);
exit(1);
}
}
exit(0);
}
SHAR_EOF
fi # end of overwriting check
set -e
echo "Extracting the old [SML]crypt.o from [SML]libc..."
ar x /lib/Slibc.a crypt.o
mv crypt.o ORIGScrypt.o
ar x /lib/Mlibc.a crypt.o
mv crypt.o ORIGMcrypt.o
ar x /lib/Llibc.a crypt.o
mv crypt.o ORIGLcrypt.o
echo "Making the patch..."
cc -o xorit xorit.c
./xorit ORIGScrypt.o Spatch > Scrypt.o
./xorit ORIGMcrypt.o Mpatch > Mcrypt.o
./xorit ORIGLcrypt.o Lpatch > Lcrypt.o
echo "Installing the new [SML]crypt.o into [SML]libc..."
mv Scrypt.o crypt.o
ar r /lib/Slibc.a crypt.o
mv crypt.o NEWScrypt.o
cp ORIGScrypt.o /lib # Save a copy for future reference
mv Mcrypt.o crypt.o
ar r /lib/Mlibc.a crypt.o
mv crypt.o NEWMcrypt.o
cp ORIGMcrypt.o /lib # Save a copy for future reference
mv Lcrypt.o crypt.o
ar r /lib/Llibc.a crypt.o
mv crypt.o NEWLcrypt.o
cp ORIGLcrypt.o /lib # Save a copy for future reference
echo "Cleaning up..."
rm xorit xorit.c Spatch Mpatch Lpatch
echo "All done."
# End of shell archive
exit 0
--
[ Keith ] UUCP: {cbosgd, hplabs!hp-sdd, sdcsvax, nosc}!crash!portnoy!ag
[Gabryelski] INET: ag@portnoy.cts.com ARPA: crash!portnoy!ag@nosc.mil