[Freeciv-Dev] Re: core file on civserver, http://civserver.freeciv.org/games/42747

[Jason Short <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

This is fixed in CVS:

----------------------------
revision 1.117
date: 2002/08/10 17:07:26;  author: rfalke;  state: Exp;  lines: +4 -0
Add array bounds checks. Add checks for packet input.

Patch from Mateusz Stefek <matusik_s@xxxxx> with changes from me.
----------------------------

I wonder if this is an invalid packet caused by a client bug?

jason


freeciv@xxxxxxxxxxxxxxxxxxxxx wrote:
> # using $FREECIV_PATH 
> /home/freeciv/.freeciv/code/installed/stable/freeciv-1.13.0+none/share/freeciv
> # running: (echo bt; echo quit; exec yes '') | gdb  
> /home/freeciv/.freeciv/code/installed/stable/freeciv-1.13.0+none/share/freeciv/../../bin/civserver
>  core.13881
> GNU gdb Red Hat Linux (5.2-2)
> Copyright 2002 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 "i386-redhat-linux"...
> Core was generated by 
> `/home/freeciv/.freeciv/code/installed/stable/freeciv-1.13.0+none/share/freeciv/'.
> Program terminated with signal 11, Segmentation fault.
> Reading symbols from /usr/lib/libreadline.so.4...done.
> Loaded symbols for /usr/lib/libreadline.so.4
> Reading symbols from /usr/lib/libncurses.so.5...done.
> Loaded symbols for /usr/lib/libncurses.so.5
> Reading symbols from /lib/i686/libm.so.6...done.
> Loaded symbols for /lib/i686/libm.so.6
> Reading symbols from /usr/lib/libz.so.1...done.
> Loaded symbols for /usr/lib/libz.so.1
> Reading symbols from /lib/i686/libc.so.6...done.
> Loaded symbols for /lib/i686/libc.so.6
> Reading symbols from /lib/ld-linux.so.2...done.
> Loaded symbols for /lib/ld-linux.so.2
> Reading symbols from /lib/libnss_files.so.2...done.
> Loaded symbols for /lib/libnss_files.so.2
> Reading symbols from /lib/libnss_nisplus.so.2...done.
> Loaded symbols for /lib/libnss_nisplus.so.2
> Reading symbols from /lib/libnsl.so.1...done.
> Loaded symbols for /lib/libnsl.so.1
> Reading symbols from /lib/libnss_dns.so.2...done.
> Loaded symbols for /lib/libnss_dns.so.2
> Reading symbols from /lib/libresolv.so.2...done.
> Loaded symbols for /lib/libresolv.so.2
> #0  handle_city_name_suggest_req (pconn=0x80fcc00, packet=0x81cfef8)
>     at cityhand.c:58
> 58        freelog(LOG_VERBOSE, "handle_city_name_suggest_req(unit_pos=(%d,%d))",
> (gdb) #0  handle_city_name_suggest_req (pconn=0x80fcc00, packet=0x81cfef8)
>     at cityhand.c:58
> #1  0x0804d1ee in handle_packet_input (pconn=0x80fcc00, packet=0x81cfef8, 
>     type=73) at srv_main.c:819
> #2  0x08084c3c in sniff_packets () at sernet.c:572
> #3  0x0804e685 in main_loop () at srv_main.c:1690
> #4  0x0804ec74 in srv_main () at srv_main.c:1970
> #5  0x08049e01 in main (argc=10, argv=0xbffffc54) at civserver.c:153
> #6  0x42017589 in __libc_start_main () from /lib/i686/libc.so.6
> (gdb)