FreeTDS Development Group

[Frediano Ziglio <freddyz77 AT tin.it>]

Il lun, 2004-01-05 alle 14:34, James K. Lowden ha scritto:
> On Mon, 5 Jan 2004 08:00:25 -0500, christos AT zoulas.com (Christos Zoulas)
> wrote:
> > On Jan 5,  9:56am, freddyz77 AT tin.it (Frediano Ziglio) wrote:
> > -- Subject: Re: [freetds] Status: 0.62rc2
> > 
> > | > Note that Christos's bcp patch (thanks Christos!) has been applied,
> > | > too, but I have not tested it with TDS 5.0.  
> > | > 
> > | 
> > | # make check
> > | ...
> > | FAIL: bcp
> > | 
> > | :(
> > 
> > Is the test broken? How can I run the test?
> 
> It might be broken.  To run it:
> 
> $ vi PWD # set test server & username
> $ cd src/dblib/unittests
> $ make check #compiles and runs
> $ ./bcp
> $ gdb .libs/bcp
> 
> HTH.  
> 

Error occurs only using Sybase.

$ gdb .libs/bcp core.4112
GNU gdb Red Hat Linux (5.3post-0.20021129.18rh)
Copyright 2003 Free Software Foundation, Inc.
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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-gnu"...
Core was generated by `.libs/bcp'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from
/home/freddy/cpp/freetds/freetds62/src/dblib/.libs/libsybdb.so.4...done.
Loaded symbols for
/home/freddy/cpp/freetds/freetds62/src/dblib/.libs/libsybdb.so.4
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/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 /usr/lib/gconv/ISO8859-1.so...done.
Loaded symbols for /usr/lib/gconv/ISO8859-1.so
#0  0x4207c5fc in memcpy () from /lib/tls/libc.so.6
(gdb) bt
#0  0x4207c5fc in memcpy () from /lib/tls/libc.so.6
#1  0x400274bb in _bcp_add_variable_columns (dbproc=0x80500c0,
    rowbuffer=0x1 <Address 0x1 out of bounds>, start=3,
var_cols=0xffffffff)
    at bcp.c:1280
#2  0x4002794e in bcp_sendrow (dbproc=0x80500c0) at bcp.c:1449
#3  0x08049451 in main (argc=1, argv=0xbffff5d4) at bcp.c:234
#4  0x42015704 in __libc_start_main () from /lib/tls/libc.so.6
(gdb)

bcp_sendrow use a fixed size buffer, _bcp_add_variable_columns does not
detect null and copy from an invalid address. Both issues are really
bad...

freddy77