/*
 * sample code for loading, calling a method from 
 * and unloading a shared library on GNU/Linux
 *
 * cc main.c -o main -ldl
 *
 * If using c++ compiler the symbol names will be mangled
 * So a method called "share" will be "share__Fi" in the 
 * shared library, Please do a "nm share.sl" to find the 
 * mangled symbol for the method.
 * 
 * kishan@hackorama.com ( www.hackorama.com ) Feb 2001
 *
 */

#include <stdio.h>
#include <dlfcn.h>

int 
main( void ) 
{ 
    const char *sh_lib = "share.sl" ;
    const char *method = "share";

    void (*fp) (int)  = NULL ;
    void *handle =  dlopen( sh_lib , RTLD_NOW );

    if( handle == NULL ){
        fprintf( stderr, "\nfailed loading %s\n", sh_lib );
	exit(1);
    }else{
        fp  = ( void (*)(int) )dlsym( handle, method  );
        if( fp == NULL )
           fprintf( stderr, "\nfailed getting method %s\n", method);
	else 
           fp( 42 );
        if ( dlclose(handle) != 0 )
	   fprintf( stderr, "\nfailed unloading %s\n", sh_lib );
    }

    exit(0);
}