This commit was generated by cvs2svn to compensate for changes in r59118,
which included commits to RCS files with non-trunk default branches.
This commit is contained in:
commit
46c66b6f15
@ -1,6 +1,9 @@
|
||||
OPIE Software Distribution, Release 2.31 Bug Reporting Form
|
||||
OPIE Software Distribution, Release 2.32 Bug Reporting Form
|
||||
======================================== ==================
|
||||
|
||||
Before submitting a bug report, please check the README file and make
|
||||
sure that your "bug" is not a known problem.
|
||||
|
||||
Please make a copy of this file and then edit it with your favorite
|
||||
text editor to include the answers to the following questions:
|
||||
|
||||
@ -8,9 +11,9 @@ text editor to include the answers to the following questions:
|
||||
If you can provide multiple addresses, please do so in case we
|
||||
are unable to reply to the first one.
|
||||
|
||||
2. Your exact operating system vendor, name, and version number.
|
||||
Please be more specific than "UNIX" -- most vendors have a name
|
||||
for their particular flavor of UNIX.
|
||||
2. Your exact operating system vendor, name, and version number. If available,
|
||||
please provide the output of "uname -a" and/or the version of your C
|
||||
runtime library. Please be more specific than "UNIX".
|
||||
|
||||
3. The exact hardware the system was installed upon.
|
||||
|
||||
@ -73,7 +76,7 @@ Copyright
|
||||
=========
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -75,7 +75,7 @@ Copyright
|
||||
=========
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -2,7 +2,7 @@
|
||||
# Makefile.source and Makefile: Directions for building and installing OPIE.
|
||||
#
|
||||
# %%% portions-copyright-cmetz-96
|
||||
# Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
# Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
# Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
# the software.
|
||||
# You should have received a copy of the license with this software. If
|
||||
|
@ -1,4 +1,4 @@
|
||||
OPIE Software Distribution, Release 2.31 Important Information
|
||||
OPIE Software Distribution, Release 2.32 Important Information
|
||||
======================================== =====================
|
||||
|
||||
Introduction
|
||||
@ -75,6 +75,13 @@ original Bellcore S/Key(tm) Version 1 software:
|
||||
A Glance at What's New
|
||||
======================
|
||||
|
||||
2.32 January 1, 1998.
|
||||
|
||||
Indicate support for extended responses in challenges and check for
|
||||
such indication before generating any extended responses.
|
||||
|
||||
Lots of portability and bug fixes.
|
||||
|
||||
2.31 March 20, 1997.
|
||||
|
||||
Removed active attack protection support due to patent problems.
|
||||
@ -225,6 +232,10 @@ it easier to coordinate bug hunting.
|
||||
Gotchas
|
||||
=======
|
||||
|
||||
Solaris 2.x is just a lose. It does a lot of nonstandard and downright
|
||||
broken things. If you want OPIE to be reliable on your box, upgrade to NetBSD
|
||||
or Linux.
|
||||
|
||||
While an almost universal "feature", most people remain unaware that
|
||||
an intruder can log into a system, then log in again by running the "login"
|
||||
command from a shell. Because the second login is from the local host, the
|
||||
@ -324,9 +335,7 @@ and reasonable getty sources (try sunsite.unc.edu:/pub/Linux/system/Serial, at
|
||||
least one of agetty, mingetty, and getty_ps should work) and replacing the
|
||||
Solaris versions with these. OPIE should work *much* more happily with these
|
||||
programs than the ones that come with Solaris. However, there could be negative
|
||||
side effects -- this is not a procedure recommended for the faint of heart. An
|
||||
even more drastic solution more likely to make OPIE happy is to install Linux
|
||||
or NetBSD on your box ;)
|
||||
side effects -- this is not a procedure recommended for the faint of heart.
|
||||
|
||||
OPIE is a lot more fussy than it used to be about lock files and where
|
||||
it puts them. The lock file directory must be a directory used only for OPIE
|
||||
@ -387,22 +396,31 @@ community effort. These contributors include:
|
||||
Mowgli Assor
|
||||
Lawrie Brown
|
||||
Andrew Davis
|
||||
Dennis Glatting
|
||||
Ben Golding
|
||||
Axel Grewe
|
||||
"Hobbit"
|
||||
Kojima Hajime
|
||||
Darren Hosking
|
||||
Matt Hucke
|
||||
Charles Karney
|
||||
Jeff Kletsky
|
||||
Martijn Koster
|
||||
Osamu Kurati
|
||||
Ayamura Kikuchi
|
||||
Ronald van der Meer
|
||||
Hiroshi Nakano
|
||||
Ikuo Nakagawa
|
||||
Angelo Neri
|
||||
C. R. Oldham
|
||||
D. Jason Penney
|
||||
John Perkins
|
||||
Steve Price
|
||||
Jim Simmons
|
||||
Steve Simmons
|
||||
Brad Smith
|
||||
Werner Wiethege
|
||||
Ken-ichi Yamasaki
|
||||
Wietse Venema
|
||||
|
||||
OPIE development at NRL was sponsored by the Information Security
|
||||
@ -427,7 +445,7 @@ trademarked by anyone.
|
||||
Copyrights
|
||||
==========
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* acconfig.h: Extra commentary for Autoheader
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -176,9 +176,6 @@
|
||||
/* Defined if su should not switch to disabled accounts */
|
||||
#undef SU_STAR_CHECK
|
||||
|
||||
/* Defined if user locking is to be used */
|
||||
#undef USER_LOCKING
|
||||
|
||||
/* Define if you have the bcopy function. */
|
||||
#undef HAVE_BCOPY
|
||||
|
||||
|
510
contrib/opie/configure
vendored
510
contrib/opie/configure
vendored
File diff suppressed because it is too large
Load Diff
@ -1,7 +1,7 @@
|
||||
dnl configure.in: Input for Autoconf
|
||||
dnl
|
||||
dnl %%% portions-copyright-cmetz-96
|
||||
dnl Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
dnl Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
dnl Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
dnl the software.
|
||||
dnl You should have received a copy of the license with this software. If
|
||||
@ -14,6 +14,9 @@ dnl License Agreement applies to this software.
|
||||
dnl
|
||||
dnl History:
|
||||
dnl
|
||||
dnl Modified by cmetz for OPIE 2.32. Substitute default for LOCK_DIR.
|
||||
dnl Fix the --disable-user-locking bug. AC_DEFINE variables to 1.
|
||||
dnl Really check for ut_host.
|
||||
dnl Modified by cmetz for OPIE 2.31. Put back manual utmp[x]/wtmp[x]
|
||||
dnl checks -- too many OSs can't be trusted to tell us where they are.
|
||||
dnl Check for sys/select.h. Spell endutent right. Replace strtoul()
|
||||
@ -48,31 +51,30 @@ ACCESS_FILE="$enable_access_file"
|
||||
AC_SUBST(ACCESS_FILE)
|
||||
AC_ARG_ENABLE(server-md4, [ --enable-server-md4 Use MD4 instead of MD5 for the server], AC_DEFINE(MDX, 4), AC_DEFINE(MDX, 5))
|
||||
|
||||
set do_user_locking=1;
|
||||
AC_ARG_ENABLE(user-locking, [ --disable-user-locking Disable user locking
|
||||
--enable-user-locking[=DIR]
|
||||
Put user lock files in DIR [/etc/opielocks]],, set do_user_locking=0)
|
||||
if $do_user_locking;
|
||||
Put user lock files in DIR [/etc/opielocks]],,)
|
||||
if test "$enable_user_locking" != no;
|
||||
then
|
||||
AC_DEFINE(USER_LOCKING)
|
||||
if test -z "$enable_user_locking"
|
||||
then
|
||||
AC_DEFINE(OPIE_LOCK_DIR, "/etc/opielocks")
|
||||
LOCK_DIR="/etc/opielocks"
|
||||
else
|
||||
AC_DEFINE_UNQUOTED(OPIE_LOCK_DIR, "$enable_user_locking")
|
||||
LOCK_DIR="$enable_user_locking"
|
||||
fi
|
||||
fi
|
||||
LOCK_DIR="$enable_user_locking"
|
||||
AC_SUBST(LOCK_DIR)
|
||||
|
||||
AC_ARG_ENABLE(retype, [ --enable-retype Ask users to re-type their secret pass phrases], AC_DEFINE(RETYPE))
|
||||
AC_ARG_ENABLE(su-star-check, [ --enable-su-star-check Refuse to switch to disabled accounts], AC_DEFINE(SU_STAR_CHECK))
|
||||
AC_ARG_ENABLE(new-prompts, [ --disable-new-prompts Use more compatible (but less informative) prompts],, AC_DEFINE(NEW_PROMPTS))
|
||||
AC_ARG_ENABLE(retype, [ --enable-retype Ask users to re-type their secret pass phrases], AC_DEFINE(RETYPE, 1))
|
||||
AC_ARG_ENABLE(su-star-check, [ --enable-su-star-check Refuse to switch to disabled accounts], AC_DEFINE(SU_STAR_CHECK, 1))
|
||||
AC_ARG_ENABLE(new-prompts, [ --disable-new-prompts Use more compatible (but less informative) prompts],, AC_DEFINE(NEW_PROMPTS, 1))
|
||||
AC_ARG_ENABLE(insecure-override, [ --enable-insecure-override
|
||||
Allow users to override insecure checks], AC_DEFINE(INSECURE_OVERRIDE))
|
||||
AC_ARG_ENABLE(anonymous-ftp, [ --enable-anonymous-ftp Enable anonymous FTP support], AC_DEFINE(DOANONYMOUS) echo "Enabling anonymous FTP support in ftp -- don't say we didn't warn you!")
|
||||
AC_ARG_ENABLE(utmp, [ --disable-utmp Disable utmp logging], AC_DEFINE(DISABLE_UTMP) echo "Disabling utmp logging")
|
||||
AC_ARG_ENABLE(wtmp, [ --disable-wtmp Disable wtmp logging], AC_DEFINE(DISABLE_UTMP) echo "Disabling wtmp logging")
|
||||
Allow users to override insecure checks], AC_DEFINE(INSECURE_OVERRIDE, 1))
|
||||
AC_ARG_ENABLE(anonymous-ftp, [ --enable-anonymous-ftp Enable anonymous FTP support], AC_DEFINE(DOANONYMOUS, 1) echo "Enabling anonymous FTP support in ftp -- don't say we didn't warn you!")
|
||||
AC_ARG_ENABLE(utmp, [ --disable-utmp Disable utmp logging], AC_DEFINE(DISABLE_UTMP, 1) echo "Disabling utmp logging")
|
||||
AC_ARG_ENABLE(wtmp, [ --disable-wtmp Disable wtmp logging], AC_DEFINE(DISABLE_UTMP, 1) echo "Disabling wtmp logging")
|
||||
|
||||
dnl Checks for programs.
|
||||
AC_PROG_CC
|
||||
@ -479,7 +481,9 @@ AC_TRY_COMPILE([#include <sys/types.h>
|
||||
dnl AC_MSG_CHECKING(for ut_user in struct utmp)
|
||||
dnl AC_TRY_COMPILE([#include <sys/types.h>
|
||||
dnl #include <utmp.h>], [struct utmp foo; return (int)foo.ut_user[0];], AC_DEFINE(HAVE_UT_USER) AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
|
||||
AC_DEFINE(HAVE_UT_HOST)
|
||||
AC_MSG_CHECKING(for ut_host in struct utmp)
|
||||
AC_TRY_COMPILE([#include <sys/types.h>
|
||||
#include <utmp.h>], [struct utmp foo; return (int)foo.ut_host[0];], AC_DEFINE(HAVE_UT_HOST) AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
|
||||
|
||||
dnl Checks for library functions.
|
||||
dnl AC_PROG_GCC_TRADITIONAL
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* glob.c: The csh et al glob pattern matching routines.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
@ -13,6 +13,8 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Remove include of dirent.h here; it's
|
||||
done already (and conditionally) in opie_cfg.h.
|
||||
Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al.
|
||||
Remove useless strings. Prototype right.
|
||||
Modified at NRL for OPIE 2.0.
|
||||
@ -62,7 +64,6 @@ License Agreement applies to this software.
|
||||
#endif /* HAVE_SYS_PARAM_H */
|
||||
#include <sys/stat.h>
|
||||
|
||||
#include <dirent.h>
|
||||
#if HAVE_PWD_H
|
||||
#include <pwd.h>
|
||||
#endif /* HAVE_PWD_H */
|
||||
|
@ -2,7 +2,7 @@
|
||||
# Makefile.in/Makefile: Directions for building libmissing.
|
||||
#
|
||||
# %%% copyright-cmetz-96
|
||||
# This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
# This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
# The Inner Net License Version 2 applies to this software.
|
||||
# You should have received a copy of the license with this software. If
|
||||
# you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* endutent.c: A replacement for the endutent function
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,13 +1,15 @@
|
||||
/* getutline.c: A replacement for the getutline() function
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Fixed check for fread() return
|
||||
value.
|
||||
Modified by cmetz for OPIE 2.31. If the OS won't tell us where
|
||||
_PATH_UTMP is, play the SVID game, then use
|
||||
Autoconf-discovered values.
|
||||
@ -41,14 +43,14 @@ struct utmp *getutline FUNCTION((utmp), struct utmp *utmp)
|
||||
if (i = ttyslot()) {
|
||||
if (fseek(f, i * sizeof(struct utmp), SEEK_SET) < 0)
|
||||
goto ret;
|
||||
if (fread(&u, sizeof(struct utmp), 1, f) != sizeof(struct utmp))
|
||||
if (fread(&u, sizeof(struct utmp), 1, f) != 1)
|
||||
goto ret;
|
||||
fclose(f);
|
||||
return &u;
|
||||
}
|
||||
#endif /* HAVE_TTYSLOT */
|
||||
|
||||
while(fread(&u, sizeof(struct utmp), 1, f) == sizeof(struct utmp)) {
|
||||
while(fread(&u, sizeof(struct utmp), 1, f) == 1) {
|
||||
if (!strncmp(utmp->ut_line, u.ut_line, sizeof(u.ut_line) - 1)) {
|
||||
fclose(f);
|
||||
return &u;
|
||||
|
@ -1,13 +1,15 @@
|
||||
/* pututline.c: A replacement for the pututline() function
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Fixed check for fread() return
|
||||
value.
|
||||
Modified by cmetz for OPIE 2.31. If the OS won't tell us where
|
||||
_PATH_UTMP is, use Autoconf-discovered values.
|
||||
Created by cmetz for OPIE 2.3.
|
||||
@ -40,7 +42,7 @@ void pututline FUNCTION((utmp), struct utmp *utmp)
|
||||
}
|
||||
#endif /* HAVE_TTYSLOT */
|
||||
|
||||
while(fread(&u, sizeof(struct utmp), 1, f) == sizeof(struct utmp)) {
|
||||
while(fread(&u, sizeof(struct utmp), 1, f) == 1) {
|
||||
if (!strncmp(utmp->ut_line, u.ut_line, sizeof(u.ut_line) - 1)) {
|
||||
if ((i = ftell(f)) < 0)
|
||||
goto ret;
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* setutent.c: A replacement for the setutent function
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -2,7 +2,7 @@
|
||||
# Makefile.in/Makefile: Directions for building libopie.
|
||||
#
|
||||
# %%% copyright-cmetz-96
|
||||
# This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
# This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
# The Inner Net License Version 2 applies to this software.
|
||||
# You should have received a copy of the license with this software. If
|
||||
# you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -2,7 +2,7 @@
|
||||
overrides.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* atob8.c: The opieatob8() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* btoa8.c: The opiebtoa8() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -3,7 +3,7 @@
|
||||
64 bit OTP.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* btoh.c: The opiebtoh() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* challenge.c: The opiechallenge() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -14,6 +14,8 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Added extended response set
|
||||
identifier to the challenge.
|
||||
Modified by cmetz for OPIE 2.3. Use opie_ prefix. Send debug info to
|
||||
syslog. Add sha plumbing.
|
||||
Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al.
|
||||
@ -68,7 +70,7 @@ int opiechallenge FUNCTION((mp, name, ss), struct opie *mp AND char *name AND ch
|
||||
opierandomchallenge(ss);
|
||||
memset(mp, 0, sizeof(*mp));
|
||||
} else
|
||||
sprintf(ss, "otp-%s %d %s", algids[MDX], mp->opie_n - 1, mp->opie_seed);
|
||||
sprintf(ss, "otp-%s %d %s ext", algids[MDX], mp->opie_n - 1, mp->opie_seed);
|
||||
|
||||
return rval;
|
||||
}
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* getsequence.c: The opiegetsequence() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* getutmpentry.c: The __opiegetutmpentry() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* insecure.c: The opieinsecure() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -118,34 +118,36 @@ int opieinsecure FUNCTION_NOARGS
|
||||
};
|
||||
|
||||
#if HAVE_UT_HOST
|
||||
memset(&utmp, 0, sizeof(struct utmp));
|
||||
{
|
||||
int i = __opiegetutmpentry(ttyname(0), &utmp);
|
||||
endutent();
|
||||
if (!i && utmp.ut_host[0]) {
|
||||
insecure = 1;
|
||||
if (isatty(0)) {
|
||||
memset(&utmp, 0, sizeof(struct utmp));
|
||||
{
|
||||
int i = __opiegetutmpentry(ttyname(0), &utmp);
|
||||
endutent();
|
||||
if (!i && utmp.ut_host[0]) {
|
||||
insecure = 1;
|
||||
|
||||
if (s = strchr(utmp.ut_host, ':')) {
|
||||
int n = s - utmp.ut_host;
|
||||
if (!n)
|
||||
insecure = 0;
|
||||
else
|
||||
if (display_name) {
|
||||
if (!strncmp(utmp.ut_host, display_name, n))
|
||||
insecure = 0;
|
||||
if (s = strchr(utmp.ut_host, ':')) {
|
||||
int n = s - utmp.ut_host;
|
||||
if (!n)
|
||||
insecure = 0;
|
||||
else
|
||||
if (display_name) {
|
||||
if (!strncmp(utmp.ut_host, display_name, n))
|
||||
insecure = 0;
|
||||
#ifdef SOLARIS
|
||||
else
|
||||
if (s = strchr(utmp.ut_host, ' ')) {
|
||||
*s = ':';
|
||||
if (s = strchr(s + 1, ' '))
|
||||
*s = '.';
|
||||
if (!strncmp(utmp.ut_host, display_name, n))
|
||||
insecure = 0;
|
||||
}
|
||||
else
|
||||
if (s = strchr(utmp.ut_host, ' ')) {
|
||||
*s = ':';
|
||||
if (s = strchr(s + 1, ' '))
|
||||
*s = '.';
|
||||
if (!strncmp(utmp.ut_host, display_name, n))
|
||||
insecure = 0;
|
||||
}
|
||||
#endif /* SOLARIS */
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
};
|
||||
#endif /* HAVE_UT_HOST */
|
||||
if (insecure)
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* keycrunch.c: The opiekeycrunch() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* lock.c: The opielock() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* login.c: The opielogin() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* logwtmp.c: Put an entry in the wtmp file.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -14,11 +14,14 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Don't leave line=NULL, skip
|
||||
past /dev/ in line. Fill in ut_host on systems with UTMPX and
|
||||
ut_host.
|
||||
Modified by cmetz for OPIE 2.31. Move wtmp log functions here, to
|
||||
improve portability. Added DISABLE_WTMP.
|
||||
improve portability. Added DISABLE_WTMP.
|
||||
Modified by cmetz for OPIE 2.22. Call gettimeofday() properly.
|
||||
Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al.
|
||||
Ifdef around some headers. Added file close hook.
|
||||
Ifdef around some headers. Added file close hook.
|
||||
Modified at NRL for OPIE 2.1. Set process type for HPUX.
|
||||
Modified at NRL for OPIE 2.0.
|
||||
Originally from BSD.
|
||||
@ -124,7 +127,10 @@ VOIDRET opielogwtmp FUNCTION((line, name, host), char *line AND char *name AND c
|
||||
#if DOUTMPX && defined(_PATH_WTMPX)
|
||||
close(fdx);
|
||||
#endif /* DOUTMPX && defined(_PATH_WTMPX) */
|
||||
}
|
||||
line = "";
|
||||
} else
|
||||
if (!strncmp(line, "/dev/", 5))
|
||||
line += 5;
|
||||
|
||||
if (fd < 0 && (fd = open(_PATH_WTMP, O_WRONLY | O_APPEND, 0)) < 0)
|
||||
return;
|
||||
@ -137,9 +143,9 @@ VOIDRET opielogwtmp FUNCTION((line, name, host), char *line AND char *name AND c
|
||||
#endif /* HAVE_UT_PID */
|
||||
strncpy(ut.ut_line, line, sizeof(ut.ut_line));
|
||||
strncpy(ut.ut_name, name, sizeof(ut.ut_name));
|
||||
#if !DOUTMPX
|
||||
#if HAVE_UT_HOST
|
||||
strncpy(ut.ut_host, host, sizeof(ut.ut_host));
|
||||
#endif /* !DOUTMPX */
|
||||
#endif /* HAVE_UT_HOST */
|
||||
time(&ut.ut_time);
|
||||
if (write(fd, (char *) &ut, sizeof(struct utmp)) !=
|
||||
sizeof(struct utmp))
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* lookup.c: The opielookup() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* md4c.c: "RSA Data Security, Inc. MD4 Message-Digest Algorithm"
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -2,7 +2,7 @@
|
||||
"derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm"
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* open.c: The __opieopen() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,13 +1,15 @@
|
||||
/* parsechallenge.c: The _opieparsechallenge() library function.
|
||||
/* parsechallenge.c: The __opieparsechallenge() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Check for extended response sets.
|
||||
Change prefix to double underscore.
|
||||
Created by cmetz for OPIE 2.3 using generator.c as a guide.
|
||||
*/
|
||||
|
||||
@ -29,7 +31,7 @@ static struct algorithm algorithms[] = {
|
||||
{ NULL, 0 },
|
||||
};
|
||||
|
||||
int _opieparsechallenge FUNCTION((buffer, algorithm, sequence, seed), char *buffer AND int *algorithm AND int *sequence AND char **seed)
|
||||
int __opieparsechallenge FUNCTION((buffer, algorithm, sequence, seed, exts), char *buffer AND int *algorithm AND int *sequence AND char **seed AND int *exts)
|
||||
{
|
||||
char *c;
|
||||
|
||||
@ -64,7 +66,13 @@ int _opieparsechallenge FUNCTION((buffer, algorithm, sequence, seed), char *buff
|
||||
}
|
||||
|
||||
*seed = buffer;
|
||||
*c = 0;
|
||||
*(c++) = 0;
|
||||
|
||||
while(*c && !isspace(*c)) c++;
|
||||
if (*c && !strncmp(c, "ext", 3))
|
||||
*exts = 1;
|
||||
else
|
||||
*exts = 0;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* passcheck.c: The opiepasscheck() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,13 +1,16 @@
|
||||
/* passwd.c: The opiepasswd() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Renamed mode to flags. Made flag
|
||||
values symbolic constants. Added a flag for insecure override
|
||||
support.
|
||||
Modified by cmetz for OPIE 2.31. Removed active attack protection
|
||||
support.
|
||||
Modified by cmetz for OPIE 2.3. Split most of the function off
|
||||
@ -20,12 +23,15 @@ you didn't get a copy, you may request one from <license@inner.net>.
|
||||
#include "opie_cfg.h"
|
||||
#include "opie.h"
|
||||
|
||||
int opiepasswd FUNCTION((old, mode, principal, n, seed, ks), struct opie *old AND int mode AND char *principal AND int n AND char *seed AND char *ks)
|
||||
int opiepasswd FUNCTION((old, flags, principal, n, seed, ks), struct opie *old AND int flags AND char *principal AND int n AND char *seed AND char *ks)
|
||||
{
|
||||
int i;
|
||||
struct opie opie;
|
||||
|
||||
if ((mode & 1) && opieinsecure())
|
||||
if ((flags & OPIEPASSWD_CONSOLE) && opieinsecure())
|
||||
#if INSECURE_OVERRIDE
|
||||
if (!(flags & OPIEPASSWD_FORCE))
|
||||
#endif /* INSECURE_OVERRIDE */
|
||||
return -1;
|
||||
|
||||
memset(&opie, 0, sizeof(struct opie));
|
||||
@ -42,7 +48,7 @@ int opiepasswd FUNCTION((old, mode, principal, n, seed, ks), struct opie *old AN
|
||||
if (ks) {
|
||||
char key[8];
|
||||
|
||||
if (mode & 1) {
|
||||
if (flags & OPIEPASSWD_CONSOLE) {
|
||||
if (opiekeycrunch(MDX, key, seed, ks))
|
||||
return -1;
|
||||
for (i = n; i; i--)
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* randomchallenge.c: The opierandomchallenge() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -14,6 +14,8 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Initialize algids[] with 0s
|
||||
instead of NULL.
|
||||
Modified by cmetz for OPIE 2.3. Add sha support.
|
||||
Modified by cmetz for OPIE 2.22. Don't include stdio.h.
|
||||
Use opienewseed(). Don't include unneeded headers.
|
||||
@ -26,7 +28,7 @@ License Agreement applies to this software.
|
||||
#include "opie_cfg.h"
|
||||
#include "opie.h"
|
||||
|
||||
static char *algids[] = { NULL, NULL, NULL, "sha1", "md4", "md5" };
|
||||
static char *algids[] = { 0, 0, 0, "sha1", "md4", "md5" };
|
||||
|
||||
/* Generate a random challenge */
|
||||
/* This could grow into quite a monster, really. Random is good enough for
|
||||
@ -39,5 +41,5 @@ VOIDRET opierandomchallenge FUNCTION((prompt), char *prompt)
|
||||
if (opienewseed(buf))
|
||||
strcpy(buf, "ke4452");
|
||||
|
||||
sprintf(prompt, "otp-%s %d %s", algids[MDX], (rand() % 499) + 1, buf);
|
||||
sprintf(prompt, "otp-%s %d %s ext", algids[MDX], (rand() % 499) + 1, buf);
|
||||
}
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* readpass.c: The opiereadpass() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* readrec.c: The __opiereadrec() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
@ -52,8 +52,14 @@ static int parserec FUNCTION((opie), struct opie *opie)
|
||||
|
||||
*(c2++) = 0;
|
||||
|
||||
if (!(opie->opie_n = atoi(c)))
|
||||
{
|
||||
char *c3;
|
||||
|
||||
opie->opie_n = strtoul(c, &c3, 10);
|
||||
|
||||
if (*c3)
|
||||
return -1;
|
||||
};
|
||||
|
||||
if (!(c2 = strchr(opie->opie_seed = c2, ' ')))
|
||||
return -1;
|
||||
@ -112,7 +118,7 @@ int __opiereadrec FUNCTION((opie), struct opie *opie)
|
||||
}
|
||||
|
||||
if (!opie->opie_principal)
|
||||
return -1;
|
||||
goto ret;
|
||||
|
||||
{
|
||||
char *c, principal[OPIE_PRINCIPAL_MAX];
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* unlock.c: The opieunlock() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,13 +1,17 @@
|
||||
/* verify.c: The opieverify() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Renamed _opieparsechallenge() to
|
||||
__opieparsechallenge() and handle new argument. Fixed init
|
||||
response parsing bug.
|
||||
Modified by cmetz for OPIE 2.31. Renamed "init" to "init-hex".
|
||||
Modified by cmetz for OPIE 2.31. Renamed "init" and "RESPONSE_INIT"
|
||||
to "init-hex" and "RESPONSE_INIT_HEX". Removed active attack
|
||||
protection support.
|
||||
@ -126,8 +130,6 @@ int opieverify FUNCTION((opie, response), struct opie *opie AND char *response)
|
||||
case RESPONSE_INIT_WORD:
|
||||
{
|
||||
char *c2;
|
||||
char newkey[8];
|
||||
char buf[OPIE_SEED_MAX + 48 + 1];
|
||||
|
||||
if (!(c2 = strchr(c, ':')))
|
||||
goto verret;
|
||||
@ -165,22 +167,17 @@ int opieverify FUNCTION((opie, response), struct opie *opie AND char *response)
|
||||
*(c2++) = 0;
|
||||
|
||||
{
|
||||
int j;
|
||||
int j, k;
|
||||
|
||||
if (_opieparsechallenge(c, &j, &(opie->opie_n), &(opie->opie_seed)) || (j != MDX))
|
||||
if (__opieparsechallenge(c, &j, &(opie->opie_n), &(opie->opie_seed), &k) || (j != MDX) || k)
|
||||
goto verret;
|
||||
}
|
||||
|
||||
if (!(c2 = strchr(c = c2, ':')))
|
||||
goto verret;
|
||||
|
||||
*(c2++) = 0;
|
||||
|
||||
if (i == RESPONSE_INIT_HEX) {
|
||||
if (!opieatob8(newkey, c))
|
||||
if (!opieatob8(key, c2))
|
||||
goto verret;
|
||||
} else {
|
||||
if (opieetob(newkey, c) != 1)
|
||||
if (opieetob(key, c2) != 1)
|
||||
goto verret;
|
||||
}
|
||||
}
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* version.c: The opieversion() library function.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* writerec.c: The __opiewriterec() library function.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
.\" opiegen.1: Manual page for the opiegen(1) program.
|
||||
.\"
|
||||
.\" %%% portions-copyright-cmetz-96
|
||||
.\" Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
.\" Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
.\" Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
.\" the software.
|
||||
.\" You should have received a copy of the license with this software. If
|
||||
|
@ -2,7 +2,7 @@
|
||||
library routine.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -2,7 +2,7 @@
|
||||
opieinfo: Print a user's current OPIE sequence number and seed
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -5,7 +5,7 @@
|
||||
and outputs a response.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -312,7 +312,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
case RESPONSE_INIT_HEX:
|
||||
case RESPONSE_INIT_WORD:
|
||||
if (type == RESPONSE_INIT_HEX) {
|
||||
strcpy(response, "init:");
|
||||
strcpy(response, "init-hex:");
|
||||
strcat(response, opiebtoh(buf, key));
|
||||
sprintf(buf, ":%s 499 %s:", algids[algorithm], newseed);
|
||||
strcat(response, buf);
|
||||
|
@ -1,7 +1,7 @@
|
||||
.\" opielogin.1: Manual page for the opielogin(1) program.
|
||||
.\"
|
||||
.\" %%% portions-copyright-cmetz-96
|
||||
.\" Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
.\" Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
.\" Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
.\" the software.
|
||||
.\" You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* opielogin.c: The infamous /bin/login
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -14,6 +14,10 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Partially handle environment
|
||||
variables on the command line (a better implementation is
|
||||
coming soon). Handle failure to issue a challenge more
|
||||
gracefully.
|
||||
Modified by cmetz for OPIE 2.31. Use _PATH_NOLOGIN. Move Solaris
|
||||
drain bamage kluge after rflag check; it breaks rlogin.
|
||||
Use TCSAFLUSH instead of TCSANOW (except where it flushes
|
||||
@ -638,7 +642,8 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
int i;
|
||||
char *p;
|
||||
char opieprompt[OPIE_CHALLENGE_MAX + 1];
|
||||
int pwok, otpok, af_pwok;
|
||||
int af_pwok;
|
||||
int authsok;
|
||||
char *pp;
|
||||
char buf[256];
|
||||
int uid;
|
||||
@ -700,111 +705,104 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
}
|
||||
#endif /* DEBUG */
|
||||
|
||||
/* Some OSs pass environment variables on the command line. All of them except
|
||||
for TERM get eaten. */
|
||||
|
||||
i = argc;
|
||||
while (--i)
|
||||
if (strchr(argv[i], '=')) {
|
||||
#ifdef DEBUG
|
||||
syslog(LOG_DEBUG, "eating %s", argv[i]);
|
||||
#endif /* DEBUG */
|
||||
argc--;
|
||||
if (!strncmp(argv[i], "TERM=", 5)) {
|
||||
strncpy(term, &(argv[i][5]), sizeof(term));
|
||||
term[sizeof(term) - 1] = 0;
|
||||
#ifdef DEBUG
|
||||
syslog(LOG_DEBUG, "passed TERM=%s, ouroptind = %d", term, i);
|
||||
#endif /* DEBUG */
|
||||
}
|
||||
}
|
||||
/* Implement our own getopt()-like functionality, but do so in a much more
|
||||
strict manner to prevent security problems. */
|
||||
for (ouroptind = 1; ouroptind < argc; ouroptind++) {
|
||||
i = 0;
|
||||
if (argv[ouroptind])
|
||||
if (argv[ouroptind][0] == '-')
|
||||
if (i = argv[ouroptind][1])
|
||||
if (!argv[ouroptind][2])
|
||||
switch (i) {
|
||||
case 'd':
|
||||
if (++ouroptind == argc)
|
||||
exit(1);
|
||||
if (!argv[ouroptind])
|
||||
continue;
|
||||
|
||||
if (argv[ouroptind][0] == '-') {
|
||||
char *c = argv[ouroptind] + 1;
|
||||
|
||||
while(*c) {
|
||||
switch(*(c++)) {
|
||||
case 'd':
|
||||
if (*c || (++ouroptind == argc))
|
||||
exit(1);
|
||||
|
||||
/* The '-d' option is apparently a performance hack to get around
|
||||
ttyname() being slow. The potential does exist for it to be used
|
||||
for malice, and it does not seem to be strictly necessary, so we
|
||||
will just eat it. */
|
||||
break;
|
||||
break;
|
||||
|
||||
case 'r':
|
||||
case 'r':
|
||||
if (rflag || hflag || fflag) {
|
||||
fprintf(stderr, "Other options not allowed with -r\n");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
if (*c || (++ouroptind == argc))
|
||||
exit(1);
|
||||
|
||||
if (!(ouroptarg = argv[ouroptind]))
|
||||
exit(1);
|
||||
|
||||
rflag = -1;
|
||||
if (!doremotelogin(ouroptarg))
|
||||
rflag = 1;
|
||||
|
||||
strncpy(host, ouroptarg, sizeof(host));
|
||||
break;
|
||||
|
||||
case 'h':
|
||||
if (!getuid()) {
|
||||
if (rflag || hflag || fflag) {
|
||||
printf("Other options not allowed with -r\n");
|
||||
fprintf(stderr, "Other options not allowed with -h\n");
|
||||
exit(1);
|
||||
}
|
||||
if (++ouroptind == argc)
|
||||
hflag = 1;
|
||||
|
||||
if (*c || (++ouroptind == argc))
|
||||
exit(1);
|
||||
|
||||
ouroptarg = argv[ouroptind];
|
||||
|
||||
if (!ouroptarg)
|
||||
if (!(ouroptarg = argv[ouroptind]))
|
||||
exit(1);
|
||||
|
||||
rflag = -1;
|
||||
if (!doremotelogin(ouroptarg))
|
||||
rflag = 1;
|
||||
|
||||
|
||||
strncpy(host, ouroptarg, sizeof(host));
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
case 'h':
|
||||
if (!getuid()) {
|
||||
if (rflag || hflag || fflag) {
|
||||
printf("Other options not allowed with -h\n");
|
||||
exit(1);
|
||||
}
|
||||
hflag = 1;
|
||||
case 'f':
|
||||
if (rflag) {
|
||||
fprintf(stderr, "Only one of -r and -f allowed\n");
|
||||
exit(1);
|
||||
}
|
||||
fflag = 1;
|
||||
|
||||
if (++ouroptind == argc)
|
||||
exit(1);
|
||||
if (*c || (++ouroptind == argc))
|
||||
exit(1);
|
||||
|
||||
ouroptarg = argv[ouroptind];
|
||||
if (!(ouroptarg = argv[ouroptind]))
|
||||
exit(1);
|
||||
|
||||
if (!ouroptarg)
|
||||
exit(1);
|
||||
|
||||
strncpy(host, ouroptarg, sizeof(host));
|
||||
}
|
||||
break;
|
||||
strncpy(name, ouroptarg, sizeof(name));
|
||||
break;
|
||||
case 'p':
|
||||
pflag = 1;
|
||||
break;
|
||||
};
|
||||
};
|
||||
continue;
|
||||
};
|
||||
|
||||
case 'f':
|
||||
if (rflag) {
|
||||
printf("Only one of -r and -f allowed\n");
|
||||
exit(1);
|
||||
}
|
||||
fflag = 1;
|
||||
if (strchr(argv[ouroptind], '=')) {
|
||||
if (!strncmp(argv[ouroptind], "TERM=", 5)) {
|
||||
strncpy(term, &(argv[ouroptind][5]), sizeof(term));
|
||||
term[sizeof(term) - 1] = 0;
|
||||
#ifdef DEBUG
|
||||
syslog(LOG_DEBUG, "passed TERM=%s, ouroptind = %d", term, ouroptind);
|
||||
#endif /* DEBUG */
|
||||
} else {
|
||||
#ifdef DEBUG
|
||||
syslog(LOG_DEBUG, "eating %s, ouroptind = %d", argv[ouroptind], ouroptind);
|
||||
#endif /* DEBUG */
|
||||
};
|
||||
continue;
|
||||
};
|
||||
|
||||
if (++ouroptind == argc)
|
||||
exit(1);
|
||||
|
||||
ouroptarg = argv[ouroptind];
|
||||
|
||||
if (!ouroptarg)
|
||||
exit(1);
|
||||
|
||||
strncpy(name, ouroptarg, sizeof(name));
|
||||
break;
|
||||
|
||||
case 'p':
|
||||
pflag = 1;
|
||||
break;
|
||||
} else
|
||||
i = 0;
|
||||
if (!i) {
|
||||
ouroptarg = argv[ouroptind++];
|
||||
strncpy(name, ouroptarg, sizeof(name));
|
||||
break;
|
||||
}
|
||||
}
|
||||
strncpy(name, argv[ouroptind], sizeof(name));
|
||||
};
|
||||
|
||||
#ifdef TIOCNXCL
|
||||
/* BSDism: not sure how to rewrite for POSIX. rja */
|
||||
@ -1063,6 +1061,7 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
if (invalid && !name[0]) {
|
||||
getloginname();
|
||||
invalid = lookupuser();
|
||||
authsok = 0;
|
||||
}
|
||||
#ifdef DEBUG
|
||||
syslog(LOG_DEBUG, "login name is +%s+, of length %d, [0] = %d", name, strlen(name), name[0]);
|
||||
@ -1092,11 +1091,9 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
|
||||
if ((i < 0) || (i > 1)) {
|
||||
syslog(LOG_ERR, "error: opiechallenge() returned %d, errno=%d!\n", i, errno);
|
||||
fprintf(stderr, "System error; can't issue challenge!\n");
|
||||
otpok = 0;
|
||||
} else {
|
||||
printf("%s\n", opieprompt);
|
||||
otpok = 1;
|
||||
authsok |= 1;
|
||||
}
|
||||
|
||||
if (!memcmp(&thisuser, &nouser, sizeof(thisuser)))
|
||||
@ -1107,28 +1104,29 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
syslog(LOG_WARNING, "Invalid login attempt for %s on %s.",
|
||||
name, tty);
|
||||
|
||||
pwok = af_pwok && opiealways(thisuser.pw_dir);
|
||||
if (af_pwok && opiealways(thisuser.pw_dir))
|
||||
authsok |= 2;
|
||||
|
||||
#if DEBUG
|
||||
syslog(LOG_DEBUG, "af_pwok = %d, pwok = %d", af_pwok, pwok);
|
||||
syslog(LOG_DEBUG, "af_pwok = %d, authsok = %d", af_pwok, authsok);
|
||||
#endif /* DEBUG */
|
||||
|
||||
if (!pwok && !otpok) {
|
||||
fprintf(stderr, "Can't authenticate %s!\n", name);
|
||||
exit(1);
|
||||
}
|
||||
if (!authsok)
|
||||
syslog(LOG_ERR, "no authentication methods are available for %s!", name);
|
||||
|
||||
#if NEW_PROMPTS
|
||||
if (otpok)
|
||||
if ((authsok & 1) || !authsok)
|
||||
printf("Response");
|
||||
if (otpok && pwok)
|
||||
if (((authsok & 3) == 3) || !authsok)
|
||||
printf(" or ");
|
||||
if (pwok)
|
||||
if ((authsok & 2) || !authsok)
|
||||
printf("Password");
|
||||
printf(": ");
|
||||
if (!opiereadpass(buf, sizeof(buf), !pwok))
|
||||
fflush(stdout);
|
||||
if (!opiereadpass(buf, sizeof(buf), !(authsok & 2)))
|
||||
invalid = TRUE;
|
||||
#else /* NEW_PROMPTS */
|
||||
if (!pwok)
|
||||
if (!(authsok & 1) && authsok)
|
||||
printf("(OTP response required)\n");
|
||||
printf("Password:");
|
||||
fflush(stdout);
|
||||
@ -1136,8 +1134,8 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
invalid = TRUE;
|
||||
#endif /* NEW_PROMPTS */
|
||||
|
||||
if (!buf[0] && otpok) {
|
||||
pwok = 0;
|
||||
if (!buf[0] && (authsok & 1)) {
|
||||
authsok &= ~2;
|
||||
/* Null line entered, so display appropriate prompt & flush current
|
||||
data. */
|
||||
#if NEW_PROMPTS
|
||||
@ -1149,7 +1147,7 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
invalid = TRUE;
|
||||
}
|
||||
|
||||
if (otpok) {
|
||||
if (authsok & 1) {
|
||||
i = opiegetsequence(&opie);
|
||||
opiepassed = !opieverify(&opie, buf);
|
||||
|
||||
@ -1159,7 +1157,7 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
}
|
||||
|
||||
if (!invalid) {
|
||||
if (otpok && opiepassed) {
|
||||
if ((authsok & 1) && opiepassed) {
|
||||
if (i < 10) {
|
||||
printf("Warning: Re-initialize your OTP information");
|
||||
if (i < 5)
|
||||
@ -1167,7 +1165,7 @@ completeness, but these are set within appropriate defines for portability. */
|
||||
printf("\n");
|
||||
}
|
||||
} else {
|
||||
if (pwok) {
|
||||
if (authsok & 2) {
|
||||
pp = crypt(buf, thisuser.pw_passwd);
|
||||
invalid = strcmp(pp, thisuser.pw_passwd);
|
||||
} else
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* opiepasswd.c: Add/change an OTP password in the key database.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -14,6 +14,8 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Use OPIE_SEED_MAX instead of
|
||||
hard coding the length. Unlock user on failed lookup.
|
||||
Modified by cmetz for OPIE 2.3. Got of some variables and made some
|
||||
local to where they're used. Split out the finishing code. Use
|
||||
opielookup() instead of opiechallenge() to find user. Three
|
||||
@ -110,7 +112,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
{
|
||||
struct opie opie;
|
||||
int rval, n = 499, i, mode = MODE_DEFAULT, force = 0;
|
||||
char seed[18];
|
||||
char seed[OPIE_SEED_MAX+1];
|
||||
struct passwd *pp;
|
||||
|
||||
memset(seed, 0, sizeof(seed));
|
||||
@ -126,7 +128,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
opieversion();
|
||||
case 'f':
|
||||
#if INSECURE_OVERRIDE
|
||||
force = 1;
|
||||
force = OPIEPASSWD_FORCE;
|
||||
#else /* INSECURE_OVERRIDE */
|
||||
fprintf(stderr, "Sorry, but the -f option is not supported by this build of OPIE.\n");
|
||||
#endif /* INSECURE_OVERRIDE */
|
||||
@ -185,10 +187,10 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
break;
|
||||
case 2:
|
||||
fprintf(stderr, "Error: Can't update key database.\n");
|
||||
exit(1);
|
||||
finish(NULL);
|
||||
default:
|
||||
fprintf(stderr, "Error reading key database\n");
|
||||
exit(1);
|
||||
finish(NULL);
|
||||
}
|
||||
|
||||
if (seed[0]) {
|
||||
@ -308,7 +310,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
finish(NULL);
|
||||
}
|
||||
|
||||
if (!(rval = opiepasswd(&opie, 0, pp->pw_name, n, seed, tmp)))
|
||||
if (!(rval = opiepasswd(&opie, force, pp->pw_name, n, seed, tmp)))
|
||||
finish(pp->pw_name);
|
||||
|
||||
if (rval < 0) {
|
||||
@ -326,7 +328,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
fprintf(stderr, "Only use this method from the console; NEVER from remote. If you are using\n");
|
||||
fprintf(stderr, "telnet, xterm, or a dial-in, type ^C now or exit with no password.\n");
|
||||
fprintf(stderr, "Then run opiepasswd without the -c parameter.\n");
|
||||
if (opieinsecure()) {
|
||||
if (opieinsecure() && !force) {
|
||||
fprintf(stderr, "Sorry, but you don't seem to be on the console or a secure terminal.\n");
|
||||
if (force)
|
||||
fprintf(stderr, "Warning: Continuing could disclose your secret pass phrase to an attacker!\n");
|
||||
@ -394,7 +396,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
fprintf(stderr, "Sorry, no match.\n");
|
||||
}
|
||||
memset(passwd2, 0, sizeof(passwd2));
|
||||
if (opiepasswd(&opie, 1, pp->pw_name, n, seed, passwd)) {
|
||||
if (opiepasswd(&opie, 1 | force, pp->pw_name, n, seed, passwd)) {
|
||||
fprintf(stderr, "Error updating key database.\n");
|
||||
finish(NULL);
|
||||
}
|
||||
|
@ -1,7 +1,7 @@
|
||||
.\" opieserv.1: Manual page for the opieserv(1) program.
|
||||
.\"
|
||||
.\" %%% portions-copyright-cmetz-96
|
||||
.\" Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
.\" Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
.\" Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
.\" the software.
|
||||
.\" You should have received a copy of the license with this software. If
|
||||
|
@ -2,7 +2,7 @@
|
||||
opieverify() library routines.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -1,7 +1,7 @@
|
||||
.\" opiesu.c: Manual page for the opiesu(1) program.
|
||||
.\"
|
||||
.\" %%% portions-copyright-cmetz-96
|
||||
.\" Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
.\" Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
.\" Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
.\" the software.
|
||||
.\" You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* opiesu.c: main body of code for the su(1m) program
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
@ -14,6 +14,7 @@ License Agreement applies to this software.
|
||||
|
||||
History:
|
||||
|
||||
Modified by cmetz for OPIE 2.32. Set up TERM and PATH correctly.
|
||||
Modified by cmetz for OPIE 2.31. Fix sulog(). Replaced Getlogin() with
|
||||
currentuser. Fixed fencepost error in month printed by sulog().
|
||||
Modified by cmetz for OPIE 2.3. Limit the length of TERM on full login.
|
||||
@ -99,7 +100,7 @@ License Agreement applies to this software.
|
||||
static char userbuf[16] = "USER=";
|
||||
static char homebuf[128] = "HOME=";
|
||||
static char shellbuf[128] = "SHELL=";
|
||||
static char pathbuf[128] = "PATH=";
|
||||
static char pathbuf[sizeof("PATH") + sizeof(DEFAULT_PATH) - 1] = "PATH=";
|
||||
static char termbuf[32] = "TERM=";
|
||||
static char *cleanenv[] = {userbuf, homebuf, shellbuf, pathbuf, 0, 0};
|
||||
static char *user = "root";
|
||||
@ -268,7 +269,7 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
};
|
||||
};
|
||||
|
||||
strcpy(pathbuf, DEFAULT_PATH);
|
||||
strcat(pathbuf, DEFAULT_PATH);
|
||||
|
||||
again:
|
||||
if (argc > 1 && strcmp(argv[1], "-f") == 0) {
|
||||
@ -459,8 +460,8 @@ int main FUNCTION((argc, argv), int argc AND char *argv[])
|
||||
if (thisuser.pw_shell && *thisuser.pw_shell)
|
||||
shell = thisuser.pw_shell;
|
||||
if (fulllogin) {
|
||||
if (p = getenv("TERM")) {
|
||||
strncpy(termbuf, p, sizeof(termbuf));
|
||||
if ((p = getenv("TERM")) && (strlen(termbuf) + strlen(p) - 1 < sizeof(termbuf))) {
|
||||
strcat(termbuf, p);
|
||||
cleanenv[4] = termbuf;
|
||||
}
|
||||
environ = cleanenv;
|
||||
|
@ -9,7 +9,7 @@
|
||||
on your system. The converse is not such a safe statement.
|
||||
|
||||
%%% copyright-cmetz-96
|
||||
This software is Copyright 1996-1997 by Craig Metz, All Rights Reserved.
|
||||
This software is Copyright 1996-1998 by Craig Metz, All Rights Reserved.
|
||||
The Inner Net License Version 2 applies to this software.
|
||||
You should have received a copy of the license with this software. If
|
||||
you didn't get a copy, you may request one from <license@inner.net>.
|
||||
|
@ -2,7 +2,7 @@
|
||||
functionality to set device permissions on login
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
@ -1,7 +1,7 @@
|
||||
/* popen.c: A "safe" pipe open routine.
|
||||
|
||||
%%% portions-copyright-cmetz-96
|
||||
Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
|
||||
Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
|
||||
Reserved. The Inner Net License Version 2 applies to these portions of
|
||||
the software.
|
||||
You should have received a copy of the license with this software. If
|
||||
|
Loading…
Reference in New Issue
Block a user