Re: pw is broken?

saw the commit an hour ago. rebuilt libutil.so.9 and unfortunately it still=
 crashes for me :(

--- On Sat, 3/9/13, hiren panchasara <hiren.panchasara@gmail.com> wrote:

From: hiren panchasara <hiren.panchasara@gmail.com>
Subject: Re: pw is broken?
To: ktsin@acm.org
Cc: "freebsd-current" <freebsd-current@freebsd.org>
Date: Saturday, March 9, 2013, 10:34 PM

On Mar 8, 2013 9:44 PM, "KT Sin" <ktsin@acm.org> wrote:

>

> pw is crashing with seg fault due to this change?

>

> http://svnweb.freebsd.org/base/head/lib/libutil/gr_util.c?r1=3D245390&r2=
=3D247919
I think the correct fix is committed with: http://svnweb.freebsd.org/change=
set/base/248102
Hiren

>

> # gdb ./pw

> GNU gdb 6.1.1 [FreeBSD]

> Copyright 2004 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 conditi=
ons.

> Type "show copying" to see the conditions.

> There is absolutely no warranty for GDB. =A0Type "show warranty" for deta=
ils.

> This GDB was configured as "amd64-marcel-freebsd"...

> (gdb) run groupadd test123 -g 12345

> Starting program: /usr/src/usr.sbin/pw/pw groupadd test123 -g 12345

>

> Program received signal SIGSEGV, Segmentation fault.

> 0x0000000080d84a4f in stpcpy () from /lib/libc.so.7

> (gdb) bt full

> #0 =A00x0000000080d84a4f in stpcpy () from /lib/libc.so.7

> No symbol table info available.

> #1 =A00x0000000080a5c00a in grcopy (gr=3D0x612ce0, newgr=3D0x81409100, na=
me=3D0x0,

> =A0 =A0 ndx=3D0) at /usr/src/lib/libutil/gr_util.c:496

> =A0 =A0 =A0 =A0 dst =3D 0x8 <Error reading address 0x8: Bad address>

> =A0 =A0 =A0 =A0 i =3D 1090277153

> #2 =A00x0000000080a5bdc6 in gr_add (gr=3D0x612ce0, newmember=3D0x0)

> =A0 =A0 at /usr/src/lib/libutil/gr_util.c:451

> =A0 =A0 =A0 =A0 newgr =3D (struct group *) 0x81409100

> =A0 =A0 =A0 =A0 len =3D 0

> =A0 =A0 =A0 =A0 num_mem =3D 0

> #3 =A00x0000000080a5bd4f in gr_dup (gr=3D0x612ce0)

> =A0 =A0 at /usr/src/lib/libutil/gr_util.c:434

> No locals.

> #4 =A00x000000000040bad7 in gr_update (grp=3D0x612ce0, group=3D0x0) at gr=
upd.c:78

> =A0 =A0 =A0 =A0 pfd =3D 0

> =A0 =A0 =A0 =A0 tfd =3D 4244492

> =A0 =A0 =A0 =A0 gr =3D (struct group *) 0x0

> =A0 =A0 =A0 =A0 old_gr =3D (struct group *) 0x0

> #5 =A00x000000000040ba8f in addgrent (grp=3D0x612ce0) at grupd.c:111

> No locals.

> #6 =A00x000000000040a83d in pw_group (cnf=3D0x612bf0, mode=3D0, args=3D0x=
613e78)

> =A0 =A0 at pw_group.c:258

> ---Type <return> to continue, or q <return> to quit---

> =A0 =A0 =A0 =A0 grp =3D (struct group *) 0x612ce0

> =A0 =A0 =A0 =A0 members =3D (char **) 0x81485d00

> =A0 =A0 =A0 =A0 rc =3D 0

> =A0 =A0 =A0 =A0 a_name =3D (struct carg *) 0x8144c0a0

> =A0 =A0 =A0 =A0 a_gid =3D (struct carg *) 0x8144c0c0

> =A0 =A0 =A0 =A0 arg =3D (struct carg *) 0x0

> =A0 =A0 =A0 =A0 grmembers =3D 200

> =A0 =A0 =A0 =A0 fakegroup =3D {gr_name =3D 0x7fffffffdcb9 "test123",

> =A0 gr_passwd =3D 0x40fbc9 "*", gr_gid =3D 12345, gr_mem =3D 0x81485d00}

> #7 =A00x00000000004037fb in main (argc=3D3, argv=3D0x7fffffffd9f0) at pw.=
c:230

> =A0 =A0 =A0 =A0 which =3D 1

> =A0 =A0 =A0 =A0 config =3D 0x0

> =A0 =A0 =A0 =A0 cnf =3D (struct userconf *) 0x612bf0

> =A0 =A0 =A0 =A0 ch =3D -1

> =A0 =A0 =A0 =A0 mode =3D 0

> =A0 =A0 =A0 =A0 opts =3D {{0x40e150 "V:C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h=
:H:Db:NPy:Y",

> =A0 =A0 0x40e180 "V:C:qn:u:rY",

> =A0 =A0 0x40e18c "V:C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:FNPY",

> =A0 =A0 0x40e1b7 "V:C:qn:u:FPa7", 0x40e1c5 "V:C:q", 0x40e1c5 "V:C:q",

> =A0 =A0 0x40e1c5 "V:C:q"}, {0x40e1cb "V:C:qn:g:h:H:M:opNPY",

> =A0 =A0 0x40e1e0 "V:C:qn:g:Y", 0x40e1eb "V:C:qn:d:g:l:h:H:FM:m:NPY",

> =A0 =A0 0x40e205 "V:C:qn:g:FPa", 0x40e1c5 "V:C:q", 0x0, 0x0}}

> =A0 =A0 =A0 =A0 funcs =3D {0x405270 <pw_user>, 0x409b60 <pw_group>}

> (gdb)

>

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