Viewing file:  utils.c (1.88 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Various kernel-resident INET utility functions; mainly
* for format conversion and debugging output.
*
* Version: $Id: utils.c,v 1.8 2000/10/03 07:29:01 anton Exp $
*
* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
*
* Fixes:
* Alan Cox : verify_area check.
* Alan Cox : removed old debugging.
* Andi Kleen : add net_ratelimit()
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <asm/uaccess.h>
#include <asm/system.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/errno.h>
#include <linux/stat.h>
#include <stdarg.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <net/ip.h>
#include <net/protocol.h>
#include <net/tcp.h>
#include <linux/skbuff.h>
/*
* Display an IP address in readable format.
*/
char *in_ntoa(__u32 in)
{
static char buff[18];
char *p;
p = (char *) ∈
sprintf(buff, "%d.%d.%d.%d",
(p[0] & 255), (p[1] & 255), (p[2] & 255), (p[3] & 255));
return(buff);
}
/*
* Convert an ASCII string to binary IP.
*/
__u32 in_aton(const char *str)
{
unsigned long l;
unsigned int val;
int i;
l = 0;
for (i = 0; i < 4; i++)
{
l <<= 8;
if (*str != '\0')
{
val = 0;
while (*str != '\0' && *str != '.')
{
val *= 10;
val += *str - '0';
str++;
}
l |= val;
if (*str != '\0')
str++;
}
}
return(htonl(l));
}
|