ct-lib PR: message handler incorrectly detects charset error

In the log fragment below, the ct-lib message handler somehow gets
confused and decides it can't convert the server message to the client's
encoding.  The problem was detected by trying to create a primary key on a
column with dubplicate values. 

I'm having difficulty debugging it because on my platform gdb gets a
td_map_lwp2thr error with sqsh.  So, I'm giving up for now and posting
this message in case someone else wants to look into it.  

--jkl

ct.c:965:ct_send() succeeded
ct.c:1099:ct_results()
token.c:497:tds_process_tokens(0x8076700, 0xbfbfeb34, 0xbfbfeb38, 0x6914)
util.c:162:Changed query state from PENDING to READING
net.c:652:Received packet
0000 04 01 02 36 00 34 01 00-aa 4a 01 e1 05 00 00 01 |...6.4.. .J......|
0010 10 9a 00 43 00 52 00 45-00 41 00 54 00 45 00 20 |...C.R.E .A.T.E. |
0020 00 55 00 4e 00 49 00 51-00 55 00 45 00 20 00 49 |.U.N.I.Q .U.E. .I|
0030 00 4e 00 44 00 45 00 58-00 20 00 74 00 65 00 72 |.N.D.E.X . .t.e.r|
0040 00 6d 00 69 00 6e 00 61-00 74 00 65 00 64 00 20 |.m.i.n.a .t.e.d. |
0050 00 62 00 65 00 63 00 61-00 75 00 73 00 65 00 20 |.b.e.c.a .u.s.e. |
0060 00 61 00 20 00 64 00 75-00 70 00 6c 00 69 00 63 |.a. .d.u .p.l.i.c|
0070 00 61 00 74 00 65 00 20-00 6b 00 65 00 79 00 20 |.a.t.e.  .k.e.y. |
0080 00 77 00 61 00 73 00 20-00 66 00 6f 00 75 00 6e |.w.a.s.  .f.o.u.n|
0090 00 64 00 20 00 66 00 6f-00 72 00 20 00 69 00 6e |.d. .f.o .r. .i.n|
00a0 00 64 00 65 00 78 00 20-00 49 00 44 00 20 00 31 |.d.e.x.  .I.D. .1|
00b0 00 2e 00 20 00 4d 00 6f-00 73 00 74 00 20 00 73 |... .M.o .s.t. .s|
00c0 00 69 00 67 00 6e 00 69-00 66 00 69 00 63 00 61 |.i.g.n.i .f.i.c.a|
00d0 00 6e 00 74 00 20 00 70-00 72 00 69 00 6d 00 61 |.n.t. .p .r.i.m.a|
00e0 00 72 00 79 00 20 00 6b-00 65 00 79 00 20 00 69 |.r.y. .k .e.y. .i|
00f0 00 73 00 20 00 27 00 53-00 65 00 70 00 20 00 31 |.s. .'.S .e.p. .1|
0100 00 34 00 20 00 32 00 30-00 30 00 32 00 20 00 20 |.4. .2.0 .0.2. . |
0110 00 35 00 3a 00 34 00 32-00 50 00 4d 00 00 00 20 |.5.:.4.2 .P.M... |
0120 00 7d 1a a8 0b 7d 1a 00-04 00 00 01 00 00 00 c0 |.}...}.. ........|
0130 72 7a 1a 12 48 00 00 94-b2 df 39 07 c3 46 00 18 |rz..H... ..9..F..|
0140 b3 df 39 27 00 2e 00 05-54 00 49 00 54 00 41 00 |..9'.... T.I.T.A.|
0150 4e 00 00 01 00 aa 78 00-d6 06 00 00 00 10 31 00 |N.....x. ......1.|
0160 43 00 6f 00 75 00 6c 00-64 00 20 00 6e 00 6f 00 |C.o.u.l. d. .n.o.|
0170 74 00 20 00 63 00 72 00-65 00 61 00 74 00 65 00 |t. .c.r. e.a.t.e.|
0180 20 00 63 00 6f 00 6e 00-73 00 74 00 72 00 61 00 | .c.o.n. s.t.r.a.|
0190 69 00 6e 00 74 00 2e 00-20 00 53 00 65 00 65 00 |i.n.t...  .S.e.e.|
01a0 20 00 70 00 72 00 65 00-76 00 69 00 6f 00 75 00 | .p.r.e. v.i.o.u.|
01b0 73 00 20 00 65 00 72 00-72 00 6f 00 72 00 73 00 |s. .e.r. r.o.r.s.|
01c0 2e 00 05 54 00 49 00 54-00 41 00 4e 00 00 01 00 |...T.I.T .A.N....|
01d0 ab 5a 00 25 0e 00 00 00-00 22 00 54 00 68 00 65 |.Z.%.... .".T.h.e|
01e0 00 20 00 73 00 74 00 61-00 74 00 65 00 6d 00 65 |. .s.t.a .t.e.m.e|
01f0 00 6e 00 74 00 20 00 68-00 61 00 73 00 20 00 62 |.n.t. .h .a.s. .b|
0200 00 65 00 65 00 6e 00 20-00 74 00 65 00 72 00 6d |.e.e.n.  .t.e.r.m|
0210 00 69 00 6e 00 61 00 74-00 65 00 64 00 2e 00 05 |.i.n.a.t .e.d....|
0220 54 00 49 00 54 00 41 00-4e 00 00 01 00 fd 02 00 |T.I.T.A. N.......|
0230 d8 00 00 00 00 00      -                        |......|

token.c:512:processing result tokens.  marker is  aa(ERROR)
token.c:110:tds_process_default_tokens() marker is aa(ERROR)
token.c:2528:tds_process_msg() reading message 1505 from server
util.c:334:tdserror(0x80786a0, 0x8076700, 2403, 0)
ct.c:334:ct_con_props() action = CS_GET property = 9143
ct.c:1850:ct_close()
mem.c:603:tds_free_all_results()
util.c:162:Changed query state from READING to DEAD
ct.c:1862:ct_con_drop()
ct.c:243:ct_exit()