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Sync from SUSE:SLFO:Main telnet revision 44f93eea00a3dc6f4197d2d0fd7253f0

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Adrian Schröter 2024-09-30 10:46:45 +02:00
commit 6bb55ce0ec
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## Default LFS
*.7z filter=lfs diff=lfs merge=lfs -text
*.bsp filter=lfs diff=lfs merge=lfs -text
*.bz2 filter=lfs diff=lfs merge=lfs -text
*.gem filter=lfs diff=lfs merge=lfs -text
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*.jar filter=lfs diff=lfs merge=lfs -text
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*.tgz filter=lfs diff=lfs merge=lfs -text
*.ttf filter=lfs diff=lfs merge=lfs -text
*.txz filter=lfs diff=lfs merge=lfs -text
*.whl filter=lfs diff=lfs merge=lfs -text
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*.zip filter=lfs diff=lfs merge=lfs -text
*.zst filter=lfs diff=lfs merge=lfs -text

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CVE-2022-39028.patch Normal file
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Description: Fix remote DoS vulnerability in inetutils-telnetd
This is caused by a crash by a NULL pointer dereference when sending the
byte sequences «0xff 0xf7» or «0xff 0xf8».
Authors:
Pierre Kim (original patch),
Alexandre Torres (original patch),
Erik Auerswald <auerswal@unix-ag.uni-kl.de> (adapted patch),
Reviewed-by: Erik Auerswald <auerswal@unix-ag.uni-kl.de>
Origin: upstream
Ref: https://pierrekim.github.io/blog/2022-08-24-2-byte-dos-freebsd-netbsd-telnetd-netkit-telnetd-inetutils-telnetd-kerberos-telnetd.html
Forwarded: https://lists.gnu.org/archive/html/bug-inetutils/2022-08/msg00002.html
Last-Update: 2022-08-28
diff --git a/telnetd/state.c b/telnetd/state.c
index ffc6cbaf..c2d760f8 100644
--- a/telnetd/state.c
+++ b/telnetd/state.c
@@ -185,16 +185,22 @@ telrcv (void)
case EC:
case EL:
{
- cc_t ch;
+ cc_t ch = (cc_t) (_POSIX_VDISABLE);
DIAG(TD_OPTIONS,
printoption("td: recv IAC", c));
ptyflush(); /* half-hearted */
init_termbuf();
if (c == EC)
- ch = *slctab[SLC_EC].sptr;
+ {
+ if (slctab[SLC_EC].sptr)
+ ch = *slctab[SLC_EC].sptr;
+ }
else
- ch = *slctab[SLC_EL].sptr;
+ {
+ if (slctab[SLC_EL].sptr)
+ ch = *slctab[SLC_EL].sptr;
+ }
if (ch != (cc_t)(_POSIX_VDISABLE))
*pfrontp++ = (unsigned char)ch;
break;

110
telnet-bsd-1.2-fix-infinite-loop.patch Normal file
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@ -0,0 +1,110 @@
diff -urN telnet-bsd-1.2/telnet/commands.c telnet-bsd-1.2_patched/telnet/commands.c
--- telnet-bsd-1.2/telnet/commands.c 2005-06-02 10:12:51.000000000 +0200
+++ telnet-bsd-1.2_patched/telnet/commands.c 2014-09-30 16:07:39.772644812 +0200
@@ -2534,8 +2534,7 @@
env_export ((unsigned char *) "USER");
}
call (status, "status", "notmuch", 0);
- if (sigsetjmp (peerdied, 1) == 0)
- telnet (user);
+ telnet (user);
NetClose (net);
ExitString ("Connection closed by foreign host.\r\n", 1);
/*NOTREACHED*/ return 0;
diff -urN telnet-bsd-1.2/telnet/externs.h telnet-bsd-1.2_patched/telnet/externs.h
--- telnet-bsd-1.2/telnet/externs.h 2005-06-01 13:42:23.000000000 +0200
+++ telnet-bsd-1.2_patched/telnet/externs.h 2014-09-30 16:09:03.141437234 +0200
@@ -174,7 +174,6 @@
SetNetTrace (char *); /* Function to change where debugging goes */
extern sigjmp_buf
- peerdied,
toplevel; /* For error conditions. */
/* authenc.c */
diff -urN telnet-bsd-1.2/telnet/network.c telnet-bsd-1.2_patched/telnet/network.c
--- telnet-bsd-1.2/telnet/network.c 2004-02-13 22:52:24.000000000 +0100
+++ telnet-bsd-1.2_patched/telnet/network.c 2014-09-30 16:10:05.365071096 +0200
@@ -142,7 +142,7 @@
perror(hostname);
(void)NetClose(net);
ring_clear_mark(&netoring);
- siglongjmp(peerdied, -1);
+ ExitString("Connection closed by foreign host.\n", 1);
/*NOTREACHED*/
}
n = 0;
diff -urN telnet-bsd-1.2/telnet/sys_bsd.c telnet-bsd-1.2_patched/telnet/sys_bsd.c
--- telnet-bsd-1.2/telnet/sys_bsd.c 2004-02-14 14:20:04.000000000 +0100
+++ telnet-bsd-1.2_patched/telnet/sys_bsd.c 2014-09-30 16:30:14.601380247 +0200
@@ -778,15 +778,6 @@
/* ARGSUSED */
static void
-deadpeer (int sig)
-{
- (void) sig;
- setcommandmode ();
- siglongjmp (peerdied, -1);
-}
-
- /* ARGSUSED */
-static void
intr (int sig)
{
(void) sig;
@@ -856,7 +847,7 @@
{
(void) signal (SIGINT, intr);
(void) signal (SIGQUIT, intr2);
- (void) signal (SIGPIPE, deadpeer);
+ (void) signal(SIGPIPE, SIG_IGN);
#ifdef SIGWINCH
(void) signal (SIGWINCH, sendwin);
#endif
diff -urN telnet-bsd-1.2/telnet/telnet.c telnet-bsd-1.2_patched/telnet/telnet.c
--- telnet-bsd-1.2/telnet/telnet.c 2005-06-02 10:09:46.000000000 +0200
+++ telnet-bsd-1.2_patched/telnet/telnet.c 2014-09-30 16:13:57.158453184 +0200
@@ -107,7 +107,6 @@
static int telrcv_state;
sigjmp_buf toplevel;
-sigjmp_buf peerdied;
int flushline;
int linemode;
diff -urN telnet-bsd-1.2/telnet/terminal.c telnet-bsd-1.2_patched/telnet/terminal.c
--- telnet-bsd-1.2/telnet/terminal.c 2005-06-01 17:33:09.000000000 +0200
+++ telnet-bsd-1.2_patched/telnet/terminal.c 2014-09-30 16:17:52.934863547 +0200
@@ -88,7 +88,8 @@
/*
- * Send as much data as possible to the terminal.
+ * Send as much data as possible to the terminal, else exits if
+ * it encounters a permanent failure when writing to the tty.
*
* Return value:
* -1: No useful work done, data waiting to go out.
@@ -130,8 +131,19 @@
}
ring_consumed(&ttyoring, n);
}
- if (n < 0)
- return -1;
+ if (n < 0) {
+ if (errno == EAGAIN || errno == EINTR) {
+ return -1;
+ } else {
+ ring_consumed(&ttyoring, ring_full_count(&ttyoring));
+ setconnmode(0);
+ setcommandmode();
+ NetClose(net);
+ fprintf(stderr, "Write error on local output.\n");
+ exit(1);
+ }
+ return -1;
+ }
if (n == n0) {
if (n0)
return -1;

48
telnet-bsd-1.2-hostalias.patch Normal file
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Index: telnet-bsd-1.2/telnet/commands.c
===================================================================
--- telnet-bsd-1.2.orig/telnet/commands.c
+++ telnet-bsd-1.2/telnet/commands.c
@@ -2450,17 +2450,21 @@ tn (int argc, char *argv[])
error = getaddrinfo (aliasp, "0", &ahints, &ares);
if (error)
{
+ printf ("Couldn't get address for %s\n", aliasp);
warn ("%s: %s", aliasp, gai_strerror (error));
close (net);
- freeaddrinfo (ares);
+ net = -1;
continue;
}
if (bind (net, ares->ai_addr, ares->ai_addrlen) < 0)
{
+ printf ("Couldn't bind to %s\n", aliasp);
perror (aliasp);
close (net); /* dump descriptor */
- return 0;
+ net = -1;
+ freeaddrinfo (ares);
+ continue;
}
freeaddrinfo (ares);
}
Index: telnet-bsd-1.2/telnet/telnet.1
===================================================================
--- telnet-bsd-1.2.orig/telnet/telnet.1
+++ telnet-bsd-1.2/telnet/telnet.1
@@ -121,12 +121,11 @@ The name used is that of the current use
.Xr getlogin 2
if it agrees with the current user ID,
otherwise it is the name associated with the user ID.
-.It Fl b Ar hostalias
+.It Fl b Ar ip_address
Uses
.Xr bind 2
-on the local socket to bind it to an aliased address (see
-.Xr ifconfig 8
-and the ``alias'' specifier) or to the address of
+on the local socket to bind it to an aliased ip address
+or to the ip address of
another interface than the one naturally chosen by
.Xr connect 2 .
This can be useful when connecting to services which use IP addresses

12
telnet-bsd-1.2-man-page.patch Normal file
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--- telnet/telnet.1
+++ telnet/telnet.1
@@ -609,7 +609,8 @@
in the
user's home directory is opened. Lines beginning with a ``#'' are
comment lines. Blank lines are ignored. Lines that begin
-without white space are the start of a machine entry. The
+without white space are the start of a machine entry, use DEFAULT
+as machine name to match every connection. The
first thing on the line is the name of the machine that is
being connected to. The rest of the line, and successive
lines that begin with white space are assumed to be

53
telnet-bsd-1.2-no_gethostbyname.patch Normal file
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@ -0,0 +1,53 @@
Index: telnet/commands.c
===================================================================
--- telnet/commands.c.orig 2005-06-02 10:12:51.000000000 +0200
+++ telnet/commands.c 2009-05-22 01:27:21.108685000 +0200
@@ -1850,9 +1850,16 @@ env_init (void)
/* If this is not the full name, try to get it via DNS */
if (strchr (hbuf, '.') == 0)
{
- struct hostent *he = gethostbyname (hbuf);
- if (he != 0)
- strncpy (hbuf, he->h_name, sizeof hbuf - 1);
+ struct addrinfo hints;
+ struct addrinfo *res;
+ memset (&hints, '\0', sizeof (hints));
+ hints.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME;
+ if (getaddrinfo (hbuf, NULL, &hints, &res) == 0) {
+ if (res->ai_canonname != NULL)
+ strncpy(hbuf, res->ai_canonname, sizeof hbuf-1);
+ freeaddrinfo (res);
+ }
+
hbuf[sizeof hbuf - 1] = '\0';
}
@@ -2919,19 +2926,16 @@ sourceroute (char *arg, char **cpp, int
}
if (!c)
cp2 = 0;
+ struct addrinfo hints;
+ memset (&hints, '\0', sizeof (hints));
+ // XXX The code here seems to allow only IPv4 addresses.
+ hints.ai_family = AF_INET;
+ hints.ai_flags = AI_ADDRCONFIG;
+ struct addrinfo *aires;
+ if (getaddrinfo (cp, NULL, &hints, &aires) == 0) {
+ sin_addr = ((struct sockaddr_in *) aires->ai_addr)->sin_addr;
+ freeaddrinfo (aires);
- if ((tmp = inet_addr (cp)) != -1)
- {
- sin_addr.s_addr = tmp;
- }
- else if ((host = gethostbyname (cp)))
- {
-#if defined(h_addr)
- memmove ((caddr_t) & sin_addr,
- host->h_addr_list[0], sizeof (sin_addr));
-#else
- memmove ((caddr_t) & sin_addr, host->h_addr, sizeof (sin_addr));
-#endif
}
else
{

92
telnet-bsd-1.2-suppress_hostname.patch Normal file
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@ -0,0 +1,92 @@
Index: telnetd/global.c
===================================================================
--- telnetd/global.c.orig 2012-01-02 23:23:52.000000000 +0000
+++ telnetd/global.c 2012-01-02 23:23:55.000000000 +0000
@@ -38,6 +38,7 @@ char do_dont_resp[256];
char will_wont_resp[256];
int linemode; /* linemode on/off */
int utmp_len = MAXHOSTNAMELEN;
+int login_suppress_hostname; /* Pass -H to /bin/login */
#ifdef LINEMODE
int uselinemode; /* what linemode to use (on/off) */
Index: telnetd/sys_term.c
===================================================================
--- telnetd/sys_term.c.orig 2012-01-02 23:23:52.000000000 +0000
+++ telnetd/sys_term.c 2012-01-02 23:23:55.000000000 +0000
@@ -767,6 +767,10 @@ start_login (const char *host)
}
}
closelog ();
+
+ if (login_suppress_hostname)
+ addarg(&avs, "-H");
+
/* execv() should really take char const* const *, but it can't */
/*argvfoo = argv */ ;
memcpy (&argvfoo, &avs.argv, sizeof (argvfoo));
Index: telnetd/telnetd.c
===================================================================
--- telnetd/telnetd.c.orig 2012-01-02 23:23:52.000000000 +0000
+++ telnetd/telnetd.c 2012-01-02 23:23:55.000000000 +0000
@@ -65,7 +65,7 @@ extern void usage (void);
* that only the actual options that we support will be
* passed off to getopt().
*/
-char *valid_opts = "d:L:hnS:u:UD:46"
+char *valid_opts = "d:L:hnS:u:UD:46H"
#ifdef LINEMODE
"kl"
#endif
@@ -176,6 +176,9 @@ main (int argc, char *argv[], char *env[
case '6':
family = AF_INET6;
break;
+ case 'H':
+ login_suppress_hostname = 1;
+ break;
default:
fprintf(stderr, "telnetd: %c: unknown option\n", ch);
@@ -290,6 +293,7 @@ usage()
syslog(LOG_ERR, "usage: telnetd [-debug]"
" [-D (options|report|exercise|netdata|ptydata)]\n\t"
" [-h]"
+ " [-H]"
#if defined(LINEMODE) && defined(KLUDGELINEMODE)
" [-k]"
#endif
Index: telnetd/ext.h
===================================================================
--- telnetd/ext.h.orig 2012-01-02 23:23:52.000000000 +0000
+++ telnetd/ext.h 2012-01-02 23:23:55.000000000 +0000
@@ -36,6 +36,7 @@ extern char do_dont_resp[256];
extern char will_wont_resp[256];
extern int linemode; /* linemode on/off */
extern int utmp_len;
+extern int login_suppress_hostname;
#ifdef LINEMODE
extern int uselinemode; /* what linemode to use (on/off) */
Index: telnetd/in.telnetd.8
===================================================================
--- telnetd/in.telnetd.8.orig 2012-01-02 23:23:52.000000000 +0000
+++ telnetd/in.telnetd.8 2012-01-02 23:23:55.000000000 +0000
@@ -36,7 +36,7 @@
protocol server
.Sh SYNOPSIS
.Nm in.telnetd
-.Op Fl Uhlkn46
+.Op Fl Uhlkn46H
.Op Fl D Ar debugmode
.Op Fl I Ns Ar initid
.Op Fl S Ar tos
@@ -118,6 +118,8 @@ in
.It Fl h
Disables the printing of host-specific information before
login has been completed.
+.It Fl H
+Instruct the login program to suppress printing the hostname before the prompt.
.It Fl I Ar initid
This option is only applicable to
.Tn UNICOS

BIN
telnet-bsd-1.2.tar.bz2 (Stored with Git LFS) Normal file
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-------------------------------------------------------------------
Mon Feb 26 12:33:43 UTC 2024 - pgajdos@suse.com
- Use %patch -P N instead of deprecated %patchN.
-------------------------------------------------------------------
Fri Oct 21 14:47:08 UTC 2022 - Danilo Spinella <danilo.spinella@suse.com>
- Fix CVE-2022-39028, NULL pointer dereference in telnetd
(CVE-2022-39028, bsc#1203759)
CVE-2022-39028.patch
-------------------------------------------------------------------
Wed Dec 15 17:52:32 UTC 2021 - Danilo Spinella <danilo.spinella@suse.com>
- Update Source location to use Gentoo mirror, fixes bsc#1129925
- Run spec-cleaner
-------------------------------------------------------------------
Thu Oct 31 10:05:12 UTC 2019 - Fabian Vogt <fvogt@suse.com>
- Move netcfg and systemd requires to -server subpackage
-------------------------------------------------------------------
Fri Jul 26 10:54:10 UTC 2019 - matthias.gerstner@suse.com
- removal of SuSEfirewall2 service, since SuSEfirewall2 has been replaced by
firewalld, see [1].
[1]: https://lists.opensuse.org/opensuse-factory/2019-01/msg00490.html
-------------------------------------------------------------------
Tue May 29 14:04:29 UTC 2018 - kstreitova@suse.com
- add telnet.target that incorporates telnet.socket and
telnet@.service. Adjust systemd service_* macros parameters and
use this target instead of telnet@.service for stop/restart cases
where telnet@.service cannot be used but telnet.target can
[bsc#1093174]
-------------------------------------------------------------------
Fri Jun 16 11:05:56 UTC 2017 - aliouliaki@suse.com
- Removed xinetd service
- Added telnet@.service and telnet.socket
- Cleanup of telnet.spec
-------------------------------------------------------------------
Thu Feb 2 15:12:48 UTC 2017 - dimstar@opensuse.org
- Switch to ncurses6: use ncurses6-config to find the correct
CFLAGS and libraries.
-------------------------------------------------------------------
Wed Oct 15 12:25:31 UTC 2014 - kstreitova@suse.com
- added telnet-bsd-1.2-fix-infinite-loop.patch that fixes the
generating an infinite loop (bnc#898481)
-------------------------------------------------------------------
Mon Oct 6 09:06:29 UTC 2014 - kstreitova@suse.com
- url was repaired
-------------------------------------------------------------------
Fri Oct 3 18:26:38 UTC 2014 - kstreitova@suse.com
- spec-cleaner used for cleaning the specfile up
- "export NO_BRP_STRIP_DEBUG=true" removed from specfile
-------------------------------------------------------------------
Fri Apr 5 10:33:01 UTC 2013 - idonmez@suse.com
- Add Source URL, see https://en.opensuse.org/SourceUrls
-------------------------------------------------------------------
Mon Jan 2 23:44:46 UTC 2012 - andreas.stieger@gmx.de
- removed telnet-bsd-1.2-tinfo.patch
Replacing -lncurses with -ltinfo doesn't seem to be required and
it actually breaks builds
- refresh telnet-bsd-1.2-suppress_hostname.patch
- remove makros from patch names
- use makros for configure, make and make install
-------------------------------------------------------------------
Thu Nov 24 11:06:45 UTC 2011 - vcizek@suse.com
- added -ltinfo instead of -lncurses
-------------------------------------------------------------------
Thu Jun 30 09:29:53 UTC 2011 - vcizek@novell.com
- exit cleanly, when hostalias cannot be resolved (bnc#700229)
- made manpage more clear about the -b option
-------------------------------------------------------------------
Wed Sep 30 13:29:18 UTC 2009 - crrodriguez@opensuse.org
- telnet-server does require xinetd
-------------------------------------------------------------------
Fri May 22 14:18:35 CEST 2009 - crrodriguez@suse.de
- do not use gethostbyname(3) but getaddrinfo(3) patch by Ulrich Drepper.
-------------------------------------------------------------------
Sat Aug 30 20:13:23 CEST 2008 - cthiel@suse.de
- fix build with latests ncurses
-------------------------------------------------------------------
Wed Apr 9 12:02:40 CEST 2008 - jsrain@suse.cz
- fixed description for ports information for SuSEfirewall
(bnc #373969)
-------------------------------------------------------------------
Mon Jan 7 11:33:21 CET 2008 - mskibbe@suse.de
- Bug 351197 - several packages use wrong dir for SuSEfirewall2
services files
-------------------------------------------------------------------
Thu Mar 29 13:22:24 CEST 2007 - dmueller@suse.de
- add ncurses-devel BuildRequires
-------------------------------------------------------------------
Fri Mar 2 13:22:34 CET 2007 - mskibbe@suse.de
- telnet-server : Support for FATE #300687: Ports for SuSEfirewall
added via packages (#250570)
-------------------------------------------------------------------
Mon Dec 4 10:09:24 CET 2006 - mskibbe@suse.de
- fix Bug #224847(telnet man page does not mention DEFAULT for
.telnetrc)
-------------------------------------------------------------------
Fri May 19 13:55:02 CEST 2006 - kssingvo@suse.de
- added option -H to suppress hostname (bugzilla#175376)
-------------------------------------------------------------------
Wed Jan 25 21:42:03 CET 2006 - mls@suse.de
- converted neededforbuild to BuildRequires
-------------------------------------------------------------------
Thu Jun 16 10:14:20 CEST 2005 - mmj@suse.de
- Compile with -fpie, link with -pie
-------------------------------------------------------------------
Thu Jun 2 10:24:48 CEST 2005 - kukuk@suse.de
- Update to version 1.2 (-fpie/-pie support, latest security fixes)
-------------------------------------------------------------------
Tue Apr 5 08:12:10 CEST 2005 - mmj@suse.de
- execl(..., 0) -> execl(..., NULL)
-------------------------------------------------------------------
Fri Jun 11 17:17:41 CEST 2004 - mmj@suse.de
- Apply patch to avoid deadlock [#41864]
-------------------------------------------------------------------
Wed Feb 25 15:56:05 CET 2004 - schwab@suse.de
- Make sure _POSIX_VDISABLE is properly defined.
-------------------------------------------------------------------
Sat Feb 14 15:00:48 CET 2004 - kukuk@suse.de
- Update to telnet-bsd 1.1:
- Fix -L option
- Fix missing prototypes
- Merge all patches
-------------------------------------------------------------------
Thu Oct 16 11:52:26 CEST 2003 - mmj@suse.de
- Don't build as root
-------------------------------------------------------------------
Tue May 13 10:32:01 CEST 2003 - mmj@suse.de
- Use %defattr
-------------------------------------------------------------------
Fri Mar 7 15:46:35 CET 2003 - ro@suse.de
- remove empty server_args line in xinetd config file
-------------------------------------------------------------------
Fri Jan 24 12:16:51 CET 2003 - mmj@suse.de
- Dont use permission 755 for the xinetd file
-------------------------------------------------------------------
Fri Jan 24 11:41:26 CET 2003 - mmj@suse.de
- Add xinetd configuration file
-------------------------------------------------------------------
Wed Dec 4 15:56:17 CET 2002 - mmj@suse.de
- Fix one version of strcpy, gotten from the OpenBSD tree
-------------------------------------------------------------------
Wed Feb 13 16:58:55 MET 2002 - mmj@suse.de
- Increased the temporary buffer size in telnet to fix problem
with long hostnames when telnetting to a Solaris box.
-------------------------------------------------------------------
Tue Aug 14 13:54:53 CEST 2001 - kukuk@suse.de
- Add more fixes for possible security problems
-------------------------------------------------------------------
Fri Jul 27 11:09:03 CEST 2001 - kukuk@suse.de
- Add fix for possible problems with buffer overruns
-------------------------------------------------------------------
Mon Apr 2 09:48:04 CEST 2001 - kukuk@suse.de
- Add Obsolete for nkitserv
-------------------------------------------------------------------
Thu Mar 22 18:51:02 CET 2001 - ro@suse.de
- added split-aliases as provides
-------------------------------------------------------------------
Tue Mar 13 16:29:27 CET 2001 - kukuk@suse.de
- Initial package, split from nkitb

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telnet.socket Normal file
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@ -0,0 +1,11 @@
[Unit]
Description=Telnet Server Activation Socket
Documentation=man:telnetd(8)
PartOf=telnet.target
[Socket]
ListenStream=23
Accept=true
[Install]
WantedBy=sockets.target

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@ -0,0 +1,124 @@
#
# spec file for package telnet
#
# Copyright (c) 2022 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
# upon. The license for this file, and modifications and additions to the
# file, is the same license as for the pristine package itself (unless the
# license for the pristine package is not an Open Source License, in which
# case the license is the MIT License). An "Open Source License" is a
# license that conforms to the Open Source Definition (Version 1.9)
# published by the Open Source Initiative.
# Please submit bugfixes or comments via https://bugs.opensuse.org/
#
Name: telnet
Version: 1.2
Release: 0
Summary: A client program for the telnet remote login protocol
License: BSD-3-Clause
Group: Productivity/Networking/Other
URL: https://svnweb.freebsd.org/base/head/contrib/telnet/
Source: http://distfiles.gentoo.org/distfiles/f3/telnet-bsd-%{version}.tar.bz2
Source3: telnet.socket
Source4: telnet@.service
Source5: telnet.target
Patch1: telnet-bsd-1.2-suppress_hostname.patch
Patch2: telnet-bsd-1.2-man-page.patch
Patch3: telnet-bsd-1.2-no_gethostbyname.patch
#PATCH-FIX-UPSTREAM fix crash when using -b option bnc#700229
Patch4: telnet-bsd-1.2-hostalias.patch
#PATCH-FIX-UPSTREAM bnc#898481 kstreitova@suse.com -- fix the infinite loop consumes an entire CPU
Patch5: telnet-bsd-1.2-fix-infinite-loop.patch
# PATCH-FIX-SECURITY bsc#1203759 danilo.spinella@suse.com CVE-2022-39028
# NULL pointer dereference in telnetd
Patch6: CVE-2022-39028.patch
BuildRequires: ncurses-devel
BuildRequires: systemd-rpm-macros
Provides: nkitb:%{_bindir}/telnet
%description
Telnet is an old protocol for logging into remote systems. It is
rarely used, since the transfer is not encrypted (ssh is mostly used
these days). The telnet client is often used for debugging other
network services. The command
telnet localhost 25
connects to the local smtp server, for example.
%package server
Summary: A Server Program for the Telnet Remote Login Protocol
Group: Productivity/Networking/Other
Requires: netcfg
Provides: nkitserv:%{_sbindir}/in.telnetd
Obsoletes: nkitserv
%{?systemd_requires}
%description server
Telnet is a popular protocol for logging into remote systems. This
package provides the telnet daemon, which will allow remote logins into
this machine.
%prep
%setup -q -n telnet-bsd-%{version}
%patch -P 1
%patch -P 2
%patch -P 3
%patch -P 4 -p1
%patch -P 5 -p1
%patch -P 6 -p1
%build
export CFLAGS="%{optflags} -fpie $(ncurses6-config --cflags)"
export LDFLAGS="-pie $(ncurses6-config --libs)"
%configure
%make_build
%install
install -d -m 755 %{buildroot}%{_bindir}
install -d -m 755 %{buildroot}%{_sbindir}
install -d -m 755 %{buildroot}%{_mandir}/man1
install -d -m 755 %{buildroot}%{_mandir}/man5
install -d -m 755 %{buildroot}%{_mandir}/man8
%make_install
install -D -m 644 %{SOURCE3} %{buildroot}/%{_unitdir}/telnet.socket
install -D -m 644 %{SOURCE4} %{buildroot}/%{_unitdir}/telnet@.service
install -D -m 644 %{SOURCE5} %{buildroot}/%{_unitdir}/telnet.target
%files
%defattr(644,root,root,755)
%license COPYING
%doc ChangeLog README NEWS
%attr(755,root,root) %{_bindir}/telnet
%{_mandir}/man1/telnet.1%{?ext_man}
%files server
%defattr(644,root,root,755)
%license COPYING
%doc ChangeLog README NEWS
%{_mandir}/man8/in.telnetd.8%{?ext_man}
%{_mandir}/man8/telnetd.8%{?ext_man}
%{_mandir}/man5/issue.net.5%{?ext_man}
%attr(755,root,root) %{_sbindir}/in.telnetd
%{_unitdir}/telnet@.service
%{_unitdir}/telnet.socket
%{_unitdir}/telnet.target
%pre server
%service_add_pre telnet.socket
%post server
%service_add_post telnet.socket
%preun server
%service_del_preun telnet.target
%postun server
%service_del_postun telnet.target
%changelog

2
telnet.target Normal file
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@ -0,0 +1,2 @@
[Unit]
Description=Telnet target allowing to control multi setup

8
telnet@.service Normal file
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@ -0,0 +1,8 @@
[Unit]
Description=Telnet Server
After=local-fs.target
PartOf=telnet.target
[Service]
ExecStart=-/usr/sbin/in.telnetd
StandardInput=socket