(gdb) bt
#0  doprintf (dest=0x0, buf_p=0x7fff07277590, fmt=0x4627dd "%s.%s", vp=0x7fff072775c0) at ircd_snprintf.c:1479
#1  0x000000000041d375 in ircd_snprintf (dest=0x0, buf=<value optimized out>, buf_len=<value optimized out>, 
    format=0x4627dd "%s.%s") at ircd_snprintf.c:2115
#2  0x0000000000412b7d in make_virthost (curr=<value optimized out>, host=<value optimized out>, 
    new=0x124c9b1f "", virt=0x124c9c7d "") at hosthiding.c:237
#3  0x00000000004551a9 in set_user_mode (cptr=0x124aad10, sptr=0x124aad10, parc=<value optimized out>, 
    parv=<value optimized out>) at s_user.c:2162
#4  0x00000000004558d5 in register_user (cptr=0x124aad10, sptr=0x124aad10, nick=0x124aada8 "crash", 
    username=<value optimized out>) at s_user.c:913
#5  0x0000000000440f19 in client_dopacket (cptr=0x124aad10, length=<value optimized out>) at packet.c:179
#6  0x0000000000446a2b in read_packet (cptr=0x124aad10, socket_ready=<value optimized out>) at s_bsd.c:856
#7  0x0000000000447102 in client_sock_callback (ev=0x124c8060) at s_bsd.c:1148
#8  0x0000000000414567 in event_execute (event=0x124c8060) at ircd_events.c:143
#9  0x000000000046077e in engine_loop (gen=0x7d3f00) at engine_poll.c:362
#10 0x00000000004139df in main (argc=<value optimized out>, argv=<value optimized out>) at ircd.c:741

(gdb) bt full
#0  doprintf (dest=0x0, buf_p=0x7fff07277590, fmt=0x4627dd "%s.%s", vp=0x7fff072775c0) at ircd_snprintf.c:1479
        slen = <value optimized out>
        plen = 0
        str = 0x2010 <Address 0x2010 out of bounds>
        state = 120026560
        fld_s = {flags = 1091567616, base = 12, width = 0, prec = 1, value = {v_int = 8208, v_float = 0, 
    v_ptr = 0x2010}}
        __PRETTY_FUNCTION__ = "doprintf"
#1  0x000000000041d375 in ircd_snprintf (dest=0x0, buf=<value optimized out>, buf_len=<value optimized out>, 
    format=0x4627dd "%s.%s") at ircd_snprintf.c:2115
        buf_s = {buf = 0x7d3d60 "dc368726.26db6c6a.84b9e38a.IP", buf_size = 74, buf_overflow = 0, 
  buf_loc = 18, limit = -1, overflow = 0}
        args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7fff072776a8, 
    reg_save_area = 0x7fff072775e0}}
#2  0x0000000000412b7d in make_virthost (curr=<value optimized out>, host=<value optimized out>, 
    new=0x124c9b1f "", virt=0x124c9c7d "") at hosthiding.c:237
        parv = {0x7fff07277bd0 "192", 0x7fff07277bd4 "168", 0x7fff07277bd8 "0", 0x7fff07277bda "100", 0x0, 
  0x0, 0x7fff07277b20 "", 0x0, 0x1c93deec <Address 0x1c93deec out of bounds>, 0x7fff07277a88 "h{(\a��", 
  0x7fff07277a80 "0", 0x0, 0x0, 0x1 <Address 0x1 out of bounds>, 0x124c9570 "", 
  0x1002887a9 <Address 0x1002887a9 out of bounds>, 0x7fff072779f0 "`�J\022", 0x7fff07277a40 "�\232L\022", 
  0x68 <Address 0x68 out of bounds>, 0x41d27b "H\213D$\030H\213\024$�\004\002", 
  0x124c9594 ":test1.hub.collectiveirc.net 005 crash TOPICLEN=250 AWAYLEN=250 KICKLEN=250 CHANNELLEN=200 MAXCHANNELLEN=200 CHANTYPES=#& PREFIX=(ohv)@%+ ELIST=MNUCT STATUSMSG=@%+ CHANMODES=be,k,l,acimnprstzCLMNOQSTZ"..., 
  0x1fe <Address 0x1fe out of bounds>, 0xc41100000 <Address 0xc41100000 out of bounds>, 
  0x1 <Address 0x1 out of bounds>, 0x0, 0x0, 0x124ab860 "\206\202�L", 
  0x43f755 "\213M \211E\034��\211�\215Q�9�wb\211��D*$\r\215P\001\203�\002\211E\0349M\034\211��D*$\n�D($", 
  0x6138336539623438 <Address 0x6138336539623438 out of bounds>, 0x124ab860 "\206\202�L", 
  0x124ab860 "\206\202�L", 0x7fff07278094 "168", 0x4 <Address 0x4 out of bounds>, 
  0xdc368726 <Address 0xdc368726 out of bounds>, 0x26db6c6a <Address 0x26db6c6a out of bounds>, 
  0x124c9c50 "dc368726.26db6c6a.84b9e38a.IP", 0x124c9ad0 "", 0x41d375 "H\213D$\030H\213\024$�\004\002", 
  0x7d3d00 "dc368726.26db6c6a.84b9e38a.IP", 0x4a <Address 0x4a out of bounds>, 0x7fff07277d98 "�~'\a�\177", 
  0x124aad10 "\206\202�L", 0xffff <Address 0xffff out of bounds>, 0x0, 
  0x3000000030 <Address 0x3000000030 out of bounds>, 0xffff07287b68 <Address 0xffff07287b68 out of bounds>, 
  0x7fff07277aa0 "", 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7fff07277ed0 "��L\022", 0x0, 0x0, 0x0, 0x0, 0x0, 
  0x0, 0x7fff07277c20 "\224\225L\022", 0x0, 0x465914 "v", 0x0, 0x7fff07277d80 "03795050x\020\177", 
  0x5300000 <Address 0x5300000 out of bounds>, 0x41c87f "H\017�D$.H\213T$HH9�\017\204O\002", 
---Type <return> to continue, or q <return> to quit---
  0x7fff07277ca0 "�\177'\a", 0x124aad10 "\206\202�L", 0x0, 0x124aada8 "crash", 0x0, 
  0xffff0028eee8 <Address 0xffff0028eee8 out of bounds>, 
  0x124c95bb "TOPICLEN=250 AWAYLEN=250 KICKLEN=250 CHANNELLEN=200 MAXCHANNELLEN=200 CHANTYPES=#& PREFIX=(ohv)@%+ ELIST=MNUCT STATUSMSG=@%+ CHANMODES=be,k,l,acimnprstzCLMNOQSTZ CASEMAPPING=rfc1459 NETWORK=Collective"..., 
  0x1d7 <Address 0x1d7 out of bounds>}
        parv2 = {0x7fff07277b80 "", 0x1 <Address 0x1 out of bounds>, 
  0x107277b88 <Address 0x107277b88 out of bounds>, 0x100000000 <Address 0x100000000 out of bounds>, 
  0x4733cd "d\n", 0x3b8e74b960 "", 0x124d8d90 "/home/vadtec/nef/lib/ircd.log", 
  0x14 <Address 0x14 out of bounds>, 0x2 <Address 0x2 out of bounds>, 0x7fff07277860 "", 0x476f09 "%s", 
  0x3b8e472b1c "\203=E�-", 0x1a <Address 0x1a out of bounds>, 0x14 <Address 0x14 out of bounds>, 
  0x14 <Address 0x14 out of bounds>, 0x124d8d90 "/home/vadtec/nef/lib/ircd.log", 
  0x14 <Address 0x14 out of bounds>, 0x14 <Address 0x14 out of bounds>, 
  0x124d8d90 "/home/vadtec/nef/lib/ircd.log", 0x3b8e4cb05a "H\201��", 
  0x1c0000002c <Address 0x1c0000002c out of bounds>, 0x170000000d <Address 0x170000000d out of bounds>, 
  0x6c00000001 <Address 0x6c00000001 out of bounds>, 0x3500000006 <Address 0x3500000006 out of bounds>, 
  0x7fff00000000 <Address 0x7fff00000000 out of bounds>, 
  0xffffffffffffaba0 <Address 0xffffffffffffaba0 out of bounds>, 0x121d9a80 "CST", 
  0x1f <Address 0x1f out of bounds>, 0xffff <Address 0xffff out of bounds>, 0x0, 0x0, 0x0, 
  0x7fff07278190 "�\204'\a�\177", 0x0, 0x400e1e "syslog", 0x0, 0x124d8ff0 "", 0x0, 0x0, 0x0, 
  0x7fff07277b38 "\177�A", 0x124ab860 "\206\202�L", 0x124d8ff0 "", 
  0x47c073ec <Address 0x47c073ec out of bounds>, 0x68e238 "\001", 
  0xffff00280000 <Address 0xffff00280000 out of bounds>, 0x50 <Address 0x50 out of bounds>, 0x68deb0 "\001", 
  0x7fff07277960 "��\223\034", 0x463aef "Unknown feature \"%s\"", 
  0x3000000018 <Address 0x3000000018 out of bounds>, 0x7fff07277940 "", 0x0, 0x0, 0x7edfc0 "", 0x0, 
  0x68deb0 "\001", 0x7fff07277960 "��\223\034", 0x124d8ff0 "", 
  0x3b8d408ba7 "\205�\017\204d���A\213D$\f\205�\017\205U���\205�f\220\017\205K���fE\205�\017\211C����<���H\205�\017\2045���\213C8\017�\fB\213C4\203�\002\203�\001\211�\031�\201��\177", 0x465186 "", 
  0x7fff072779c0 "\224\225L\022", 0x464103 "MODE", 0x4787b2 "v", 0x0, 0x7fff07277b20 "", 
  0x5300000 <Address 0x5300000 out of bounds>, 0x41c87f "H\017�D$.H\213T$HH9�\017\204O\002", 
  0x7fff07277a40 "�\232L\022", 0x124ab860 "\206\202�L", 0x807277a88 <Address 0x807277a88 out of bounds>, 
  0x124ab8f8 "Vadtec", 0x124c892f "dc368726.26db6c6a.84b9e38a.IP", 
  0xffff0128ef28 <Address 0xffff0128ef28 out of bounds>, 
  0x124c95c6 "0 AWAYLEN=250 KICKLEN=250 CHANNELLEN=200 MAXCHANNELLEN=200 CHANTYPES=#& PREFIX=(ohv)@%+ ELIST=MNUCT STATUSMSG=@%+ CHANMODES=be,k,l,acimnprstzCLMNOQSTZ CASEMAPPING=rfc1459 NETWORK=CollectiveIRC :are su"..., 
  0x1cc <Address 0x1cc out of bounds>}
        s = "192\000168\0000\000100", '\0' <repeats 62 times>
---Type <return> to continue, or q <return> to quit---
        s2 = '\0' <repeats 75 times>, "\022"
        parc2 = 0
        mask = "dc368726.26db6c6a.84b9e38a.IP", '\0' <repeats 46 times>
#3  0x00000000004551a9 in set_user_mode (cptr=0x124aad10, sptr=0x124aad10, parc=<value optimized out>, 
    parv=<value optimized out>) at s_user.c:2162
        p = <value optimized out>
        m = <value optimized out>
        acptr = (struct Client *) 0x124aad10
        what = 1073741824
        i = <value optimized out>
        setflags = {flag_bits = {262144}}
        tmpmask = <value optimized out>
        snomask_given = 0
        buf = "\000\000\000\000\000\000\000\000?\000\000\000\000\000\000\000��L\022", '\0' <repeats 12 times>, "�\017\177\000\000\000\000\000U�C\000\000\000\000\000\000\177'\a�\177\000\000��~\000\000\000\000\000\020�J\022\000\000\000\000\020�J\022\000\000\000\000P\234L\022\000\000\000\000\020�J\022\000\000\000\000�\232L\022\000\000\000\000\206�C\000\000\000\000\000(\000\000\0000\000\000\000\020\200'\a�\177\000\000P\177'\a�\177\000\000A�C\000\000\000\000\000\202\001\000\000\000\000\000\000\020�J\022\000\000\000\000�\017\177\000\000\000\000\000\025AF\000\000\000\000\000\020\200'\a�\177\000\000��J\022\000\000\000\000\020�J\022\000\000\000\000q�"...
        hostmask = 0x0
        password = 0x0
        do_host_hiding = <value optimized out>
        do_set_host = 0
        force = 0
#4  0x00000000004558d5 in register_user (cptr=0x124aad10, sptr=0x124aad10, nick=0x124aada8 "crash", 
    username=<value optimized out>) at s_user.c:913
        lp = (struct SLink *) 0x7edfc0
        aconf = (struct ConfItem *) 0x124c9c50
        ashun = <value optimized out>
        parv = {0x124aada8 "crash", 0x124aada8 "crash", 0x124d8c80 "+ix", 0x0}
        join = {0x0, 0x124ab5b9 "USER"}
        tmpstr = 0x7edfc0 ""
        c = -96 '�'
        d = <value optimized out>
        upper = 0
        lower = 5
---Type <return> to continue, or q <return> to quit---
        pos = 5
        leadcaps = <value optimized out>
        other = -25520
        digits = <value optimized out>
        badid = <value optimized out>
        digitgroups = <value optimized out>
        user = (struct User *) 0x124c9ad0
        chan = "P�J\022\000\000\000\000:<A\000\000\000\000\000p\225L\022\000\000\000\000\020�J\022\000\000\000\000\020�J\022\000\000\000\000\227{E\000\000\000\000\000\020�J\022\000\000\000\000\020�J\022\000\000\000\000\200�}\000\000\000\000\000p\205'\a�\177\000\000\020�J\022\000\000\000\000�\225E\000\000\000\000\000\030\000\000\0000\000\000\000\000\205'\a�\177\000\0000\204'\a�\177\000\000\000\000\000\000\000\000\000\000x\004\000\000\000\000\000\000U�C\000\000\000\000\000\001p\2358\000\000\000\000\025Ӱ\034\000\000\000\000����\000\000\000\000J\a\032\001\000\000\000\000\200�}\000\000\000\000\000�\037D\000\000\000\000\000\001\000\000\000\231\000"
        killreason = <value optimized out>
        ip_base64 = "DAqABk\000"
        __PRETTY_FUNCTION__ = "register_user"
        last_too_many1 = 0
        last_too_many2 = 0
#5  0x0000000000440f19 in client_dopacket (cptr=0x124aad10, length=<value optimized out>) at packet.c:179
        __PRETTY_FUNCTION__ = "client_dopacket"
#6  0x0000000000446a2b in read_packet (cptr=0x124aad10, socket_ready=<value optimized out>) at s_bsd.c:856
        dolen = 67108864
        length = 42
#7  0x0000000000447102 in client_sock_callback (ev=0x124c8060) at s_bsd.c:1148
        con = <value optimized out>
        fmt = <value optimized out>
        fallback = <value optimized out>
        __PRETTY_FUNCTION__ = "client_sock_callback"
#8  0x0000000000414567 in event_execute (event=0x124c8060) at ircd_events.c:143
        __PRETTY_FUNCTION__ = "event_execute"
#9  0x000000000046077e in engine_loop (gen=0x7d3f00) at engine_poll.c:362
        c = 80 'P'
        wait = <value optimized out>
        nfds = 1
        i = 9
        errcode = 0
---Type <return> to continue, or q <return> to quit---
        codesize = 4
        sock = (struct Socket *) 0x124ab7c0
        __PRETTY_FUNCTION__ = "engine_loop"
#10 0x00000000004139df in main (argc=<value optimized out>, argv=<value optimized out>) at ircd.c:741
No locals.