File: utils.c

package info (click to toggle)
kernel-source-2.4.27 2.4.27-10sarge5
  • links: PTS
  • area: main
  • in suites: sarge
  • size: 191,224 kB
  • ctags: 610,077
  • sloc: ansic: 3,299,602; asm: 164,708; makefile: 10,962; sh: 3,725; perl: 2,273; yacc: 1,651; cpp: 820; lex: 752; tcl: 577; awk: 251; lisp: 218; sed: 79
file content (57 lines) | stat: -rw-r--r-- 1,272 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
/*
 * 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/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));
}