Very Computer

/* TURN A 32 BIT DECIMAL IP ADDRESS INTO 4 QUADS */
/* SPAMMERS CAN RUN, BUT THEY CAN'T HIDE */
/* Felix Tilley */

/* No Guarantees on how this will run on your computer. */
/* An unsigned long must be AT LEAST 32 bits for this to work */
/* An unsigned long must be AT LEAST 32 bits for this to work */
/* An unsigned long must be AT LEAST 32 bits for this to work */

/* NO JOKE */

#include <stdio.h>

main()
{
unsigned long webaddr, quad0, quad1, quad2, quad3, quotient, temp, remainder;

printf ("Enter web address as decimal:   ");

scanf ("%lu", &webaddr);
printf ("\nWEB ADDRESS:      %lu \n", webaddr);

quad0    = webaddr  % 256;
quotient = webaddr  / 256;

quad1    = quotient % 256;
quotient = quotient / 256;

quad2    = quotient % 256;
quotient = quotient / 256;

quad3 = quotient;

printf ("QUAD IP ADDRESS:  %lu\.%lu\.%lu\.%lu  \n", quad3,quad2,quad1,quad0);

printf ("\nHope this helps.\nFelix Tilley \n");

exit(0) ;

Quote:}

 #ifdef macintosh
   #if macintosh
    #define __CCMD__
   #endif
 #endif

  #ifdef __CCMD__
   #include <console.h>
  #endif

char *IPcvt(char s[])
{
 static char result[1024];
 unsigned long a,b,c,d,ip;
 register int ii;

 ii = sscanf(s,"%lu.%lu.%lu.%lu",&a,&b,&c,&d);
  switch(ii)
  {
   case 1:
    ip = a;
    a = (ip>>24) & 0xff;
    b = (ip>>16) & 0xff;
    c = (ip>>8) & 0xff;
    d = ip & 0xff;
    sprintf(result,"%s = %lu.%lu.%lu.%lu",s,a,b,c,d);
    break;
   case 4:
    ip = (a<<24) | (b<<16) | (c<<8) | d;
    sprintf(result,"%s = %lu",s,ip);
    break;
   default:
    sprintf(result,"Invalid input:  %s",s);
    break;
  }
 return(result);

Quote:}

  if(argc > 1)
  {
   register int ii;

   for(ii=1;ii<argc;ii++)  puts(IPcvt(argv[ii]));
  }
  else
  {
   char line[1024];

   gets(line);
    while(!feof(stdin))
    {
     puts(IPcvt(line));
     gets(line);
    }
  }

Quote:}

        ...or try the simple unix shell script below...

--
  ,u,    Bruce Becker           Toronto, Ontario        1 416 699 1868

 `/o/-e  +woodpecker +radio +USSR +power
 _\ >_                                       - D. M. Procida

 --------- 8< --------- 8< --------- 8< --------- 8< --------- 8< ---------

#!/bin/sh

echo "obase=256; $1" | bc | awk '
{
        for (i=1; i <= NF; i++) {
                s=$i
                if      (s ~ /^00/)
                        s=substr(s,3)
                else if (s ~ /^0/)
                        s=substr(s,2)
                if (i == 1)
                        S = s
                else
                        S = S "." s
        }
        print S

Quote:}' -

[ snip Decimal -> dotted Quad conversion program, rev 0 ]

Here's an obfuscated (no Math) version:

/* TURN A 32 BIT DECIMAL IP ADDRESS INTO 4 QUADS */
/* SPAMMERS CAN RUN, BUT THEY CAN'T HIDE */
/* Felix Tilley */

/* No Guarantees on how this will run on your computer. */
/* An unsigned long must be AT LEAST 32 bits for this to work */
/* An unsigned long must be AT LEAST 32 bits for this to work */
/* An unsigned long must be AT LEAST 32 bits for this to work */

/* NO JOKE */
/* Rev 1 */

#include <stdio.h>

main() {
char dot = '.';
union {
        unsigned char quad[4];
        unsigned long decimal;

Quote:} webaddr;

scanf ("%lu", &webaddr.decimal);
printf ("\nWEB ADDRESS:      %lu \n", webaddr.decimal);

printf ("QUAD IP ADDRESS:  %lu%c%lu%c%lu%c%lu  \n",
  webaddr.quad[3],dot,
  webaddr.quad[2],dot,
  webaddr.quad[1],dot,
  webaddr.quad[0]);

/* You may need to reverse the order on the subscripts, above */

printf ("\nHope this helps.\nFelix Tilley\n");
exit(0) ;

Quote:}

WEB ADDRESS:      123456789
QUAD IP ADDRESS:  7.91.205.21

Hope this helps.
Felix Tilley
$ ping 123456789
PING 123456789 (7.91.205.21): 56 data bytes

--
Bill Maloy (brm4)              |  Here's where my .sig references
"Death before mungement"       |  "the understated politeness of
A.S. Cadre #47                 |   Ron Schwarz" for no apparent reason.

--
If you want to reply to me, do it in the newsgroup... It's
been too long since I've received anything other than spam
in my mailbox from posting my address in the newsgroups.

Quote:(John Oliver) writes:

Or ping, or traceroute.....

--Jerry in Columbia
WARP'der'n hell down South with OS/2
*Visit Big Boy and Sweetheart's (tm)Parrot-Approved Web Site at*
http://www.conterra.com/bookter/bigboy.htm

: |/* TURN A 32 BIT DECIMAL IP ADDRESS INTO 4 QUADS */
: |/* SPAMMERS CAN RUN, BUT THEY CAN'T HIDE */
: |/* Felix Tilley */

On Fri, 12 Feb 1999, Hello Kittyhawk followed with:

Quote:>    ...or try the simple unix shell script below...

]^echo.`

Usage:

C:\>dot 3226165073

 3226165073  =  192.75.95.81

C:\>( dot 3226165073 ) >convertd.txt

4DOS command-grouping needed because of the multiple echo statements.
If you don't mind things being crowded on the screen, you can shorten the
alias to:

and command-grouping wouldn't be needed:

Usage:

C:\>dot 3226165073
 3226165073  =  192.75.95.81

C:\>dot 3226165073  >convertd.txt

Norman De Forest            http://www.chebucto.ns.ca/~af380/Profile.html

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