/* * 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);