60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
|
/*
|
||
|
|
* 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 <linux/module.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <asm/byteorder.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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));
|
||
|
|
}
|
||
|
|
|
||
|
|
EXPORT_SYMBOL(in_aton);
|