Using rssh on Solaris 2.8 to chroot ssh connections

[Markus M. <hu...@mo...>]

I try to setup rssh with chroot on Solaris 2.8 (latest patches). I think I have
the necessary files in the jail. Did an ldd on all binaries, have ksh in the
jail, but ksh core dumps. gdb shows 

# gdb /bin/ksh core
GNU gdb 5.0
Copyright 2000 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "sparc-sun-solaris2.8"...
(no debugging symbols found)...
Core was generated by `ksh -N scp -t /tftpboot'.
Program terminated with signal 11, Segmentation Fault.
Reading symbols from /usr/lib/libsocket.so.1...(no debugging symbols found)...
done.
Loaded symbols for /usr/lib/libsocket.so.1
Reading symbols from /usr/lib/libnsl.so.1...(no debugging symbols found)...
done.
Loaded symbols for /usr/lib/libnsl.so.1
Reading symbols from /usr/lib/libc.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libc.so.1
Reading symbols from /usr/lib/libdl.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libdl.so.1
Reading symbols from /usr/lib/libmp.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libmp.so.2
Reading symbols from /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1...
(no debugging symbols found)...done.
Loaded symbols for /usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1
#0  0xff1b2970 in longjmp () from /usr/lib/libc.so.1
(gdb) where
#0  0xff1b2970 in longjmp () from /usr/lib/libc.so.1
#1  0x285ac in mac_expand ()
#2  0x282e0 in job_discard_save ()
#3  0x274d8 in job_discard_save ()
#4  0x28440 in mac_expand ()
#5  0x290a0 in mac_trim ()
#6  0x2a9ec in env_setlist ()
#7  0x32690 in sh_exec ()
#8  0x1c170 in sh_eval ()
#9  0x2da5c in path_pwd ()
#10 0x29748 in main ()
(gdb)

I found that ksh -N is called from wordexp, but I can't call ksh -N in any other
way than through wordexp. 

find /chroot
/chroot
/chroot/usr
/chroot/usr/lib
/chroot/usr/lib/libresolv.so.2
/chroot/usr/lib/libcrypto.so.0.9.8
/chroot/usr/lib/librt.so.1
/chroot/usr/lib/libsocket.so.1
/chroot/usr/lib/libnsl.so.1
/chroot/usr/lib/libgssapi_krb5.so.2
/chroot/usr/lib/libk5crypto.so.3
/chroot/usr/lib/libcom_err.so.3
/chroot/usr/lib/libc.so.1
/chroot/usr/lib/libdl.so.1
/chroot/usr/lib/libaio.so.1
/chroot/usr/lib/libmp.so.2
/chroot/usr/lib/libgcc_s.so.1
/chroot/usr/lib/nss_files.so.1
/chroot/usr/lib/ld.so.1
/chroot/usr/lib/libelf.so.1
/chroot/usr/lib/libkrb5.so.3
/chroot/usr/lib/libcmd.so.1
/chroot/usr/lib/libgen.so.1
/chroot/usr/lib/libsecdb.so.1
/chroot/usr/lib/libproc.so.1
/chroot/usr/bin
/chroot/usr/bin/scp
/chroot/usr/bin/ksh
/chroot/usr/bin/ldd
/chroot/usr/platform
/chroot/usr/platform/SUNW,Ultra-5_10
/chroot/usr/platform/SUNW,Ultra-5_10/lib
/chroot/usr/platform/SUNW,Ultra-5_10/lib/libc_psr.so.1
/chroot/usr/platform/SUNW,Ultra-5_10/lib/sparcv9
/chroot/usr/platform/SUNW,Ultra-5_10/lib/sparcv9/libc_psr.so.1
/chroot/usr/platform/sun4u
/chroot/usr/platform/sun4u/lib
/chroot/usr/platform/sun4u/lib/libc_psr.so.1
/chroot/usr/libexec
/chroot/usr/libexec/sftp-server
/chroot/usr/libexec/rssh_chroot_helper
/chroot/usr/xpg4
/chroot/usr/xpg4/bin
/chroot/usr/xpg4/bin/sh
/chroot/usr/share
/chroot/usr/share/lib
/chroot/usr/share/lib/zoneinfo
/chroot/usr/share/lib/zoneinfo/GB-Eire
/chroot/lib
/chroot/etc
/chroot/etc/passwd
/chroot/etc/group
/chroot/etc/nsswitch.conf
/chroot/etc/hosts
/chroot/etc/shadow
/chroot/tftpboot
/chroot/bin
/chroot/bin/sh
/chroot/bin/ksh
/chroot/bin/pwd
/chroot/home

Does anybody know the dependency of ksh which I may have missed ?

Thanks
Markus