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utils.c

/* 
 * Network accounting
 * utils.c - utility routines *
 * (C) 1994 Ulrich Callmeier
 */

#include <stdio.h>
#include <stdlib.h>
#include "netacct.h"


char *intoa(unsigned long addr)
{
      static char buff[18];
      char *p;

      p = (char *) &addr;
      sprintf(buff, "%d.%d.%d.%d",
            (p[0] & 255), (p[1] & 255), (p[2] & 255), (p[3] & 255));
      return(buff);
}

static char hex[] = "0123456789abcdef";

char * etheraddr_string(unsigned char *ep)
{
        unsigned int i, j;
        char *cp, *s;
        
        s = cp = (char *)malloc(sizeof("00:00:00:00:00:00"));

        if ((j = *ep >> 4) != 0)
                *cp++ = hex[j];
        *cp++ = hex[*ep++ & 0xf];
        for (i = 5; (int)--i >= 0;) {
                *cp++ = ':';
                if ((j = *ep >> 4) != 0)
                        *cp++ = hex[j];
                *cp++ = hex[*ep++ & 0xf];
        }
        *cp = '\0';
        return (s);
}

char *ip_proto_name(unsigned char proto)
{
    switch(proto)
      {
      case IPPROTO_ICMP: 
          return "ICMP";
      case IPPROTO_TCP: 
          return "TCP";
      case IPPROTO_UDP: 
          return "UDP";
      }
    return "?";
}

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