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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [net/] [ipv4/] [utils.c] - Blame information for rev 1782

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Line No. Rev Author Line
1 199 simons
/*
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 * INET         An implementation of the TCP/IP protocol suite for the LINUX
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 *              operating system.  INET is implemented using the  BSD Socket
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 *              interface as the means of communication with the user level.
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 *
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 *              Various kernel-resident INET utility functions; mainly
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 *              for format conversion and debugging output.
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 *
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 * Version:     @(#)utils.c     1.0.7   05/18/93
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 *
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 * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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 *
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 * Fixes:
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 *              Alan Cox        :       verify_area check.
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 *              Alan Cox        :       removed old debugging.
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 *
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 *
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 *              This program is free software; you can redistribute it and/or
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 *              modify it under the terms of the GNU General Public License
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 *              as published by the Free Software Foundation; either version
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 *              2 of the License, or (at your option) any later version.
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 */
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#include <asm/segment.h>
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#include <asm/system.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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#include <linux/socket.h>
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#include <linux/in.h>
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#include <linux/errno.h>
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#include <linux/stat.h>
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#include <stdarg.h>
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#include <linux/inet.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <net/ip.h>
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#include <net/protocol.h>
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#include <net/tcp.h>
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#include <linux/skbuff.h>
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/*
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 *      Display an IP address in readable format.
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 */
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char *in_ntoa(unsigned long in)
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{
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        static char buff[18];
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        char *p;
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        p = (char *) &in;
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        sprintf(buff, "%d.%d.%d.%d",
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                (p[0] & 255), (p[1] & 255), (p[2] & 255), (p[3] & 255));
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        return(buff);
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}
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/*
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 *      Convert an ASCII string to binary IP.
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 */
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unsigned long in_aton(const char *str)
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{
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        unsigned long l;
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        unsigned int val;
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        int i;
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        l = 0;
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        for (i = 0; i < 4; i++)
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        {
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                l <<= 8;
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                if (*str != '\0')
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                {
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                        val = 0;
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                        while (*str != '\0' && *str != '.')
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                        {
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                                val *= 10;
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                                val += *str - '0';
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                                str++;
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                        }
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                        l |= val;
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                        if (*str != '\0')
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                                str++;
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                }
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        }
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        return(htonl(l));
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}
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