Problem in Calling External Procedure

Hello,
I am trying to call external procedure written in C from PL/SQL.
Here are the codes :
For external procedure:
#include<stdio.h>
void extproc_fn ( void )
FILE * file_handle;
if (( file_handle = fopen ( "/root/cprogs/extproc.out", "a" )) != NULL )
fwrite ( "External Procedure Testing", 26, 1, file_handle );
fclose ( file_handle );
I have created library as :
create or replace library extproc_lib as '/root/cprogs/extproc.so';
And the procedure :
create or replace procedure extproc_proc as
external
name "extproc_fn"
library extproc_lib
language c;
My listener and tnsname is configured correctly.
But when I try to connect to Oracle by that tnsname, extproc program core dumps under $ORACLE_HOME/network/log directory. Under WinNT, it creates a Dr. Watson error.
Any idea what might have gone wrong.
Thanks in advance.
Soumen Ghosh

hi there,
everything u did is correct as far as i recollect about external procedures ,the only thing that i suppose is missing is that u forgot to grant permissions on the library to the user...pls check this once i hope this works...
bye
Atul

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