//-------------------------------------------------------------------
//	utsinfo.c
//
//	This module creates a pseudo-file (named '/proc/utsinfo') 
//	which prints information held within the 'system_utsname' 
//	kernel data-structure, including the hostname of the node 
//	that is executing this module's 'get_info()' function.
//
//	NOTE: Written and tested with Linux kernel version 2.6.10
//
//	programmer: ALLAN CRUSE
//	written on: 25 MAR 2005 
//-------------------------------------------------------------------

#include <linux/module.h>	// for init_module() 
#include <linux/proc_fs.h>	// for create_proc_read_entry() 
#include <linux/utsname.h>	// for 'system_utsname' object

char modname[] = "utsinfo";


int my_get_info( char *buf, char **start, off_t off, int count )
{
	int	len = 0;

	len += sprintf( buf+len, "\nDisplaying information from the " );
	len += sprintf( buf+len, "\'system_utsname\' data-structure\n\n" );
	len += sprintf( buf+len, "sysname: %s\n", system_utsname.sysname );
	len += sprintf( buf+len, "nodename: %s\n", system_utsname.nodename );
	len += sprintf( buf+len, "release: %s\n", system_utsname.release );
	len += sprintf( buf+len, "version: %s\n", system_utsname.version );
	len += sprintf( buf+len, "machine: %s\n", system_utsname.machine );
	len += sprintf( buf+len, "domainname: %s", system_utsname.domainname );
	len += sprintf( buf+len, "\n\n" );
	return	len;
}



int init_module( void )
{
	printk( "<1>\nInstalling \'%s\' module\n", modname );

	create_proc_info_entry( modname, 0, NULL, my_get_info );
	return	0;  // SUCCESS
}

void cleanup_module( void )
{
	remove_proc_entry( modname, NULL );
	printk( "<1>Removing \'%s\' module\n", modname );
}

MODULE_LICENSE("GPL");