Code codes code #2
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Erinnert ihr euch an das da? Der Ruby-Code, der Python-Code generiert, welcher Perl-Code generiert, welcher … (nach etlichen weiteren Sprachen) …wieder den Original Ruby-Code generiert.
Jetzt gibts gleich noch mal vierdimensionale japanische Kampfcodekunst.
Das Teil erzeugt ein Programm, welches sich selbst, diesen Code hier in Form des ASCII-Bildes, in bis zu vier Schritten verkleinern kann, und alle verkleinerten Code-Erzeugnisse sind ausführbar. Mit verkleinern meine ich das Bild. Optisch.
/* + + + + [ >i>n[t */ #include<stdio.h> /*2w0,1m2,]_<n+a m+o>r>i>=>(['0n1'0)1; */int/**/main(int/**/n,char**m){FILE*p,*q;int A,k,a,r,i/* #uinndcelfu_dset<rsitcdti_oa.nhs>i/_*/;char*d="P%" "d\n%d\40%d"/**/ "\n%d\n\00wb+",b[1024],y[]="yuriyurarararayuruyuri*daijiken**akkari~n**" "/y*u*k/riin<ty(uyr)g,aur,arr[a1r2a82*y2*/u*r{uyu}riOcyurhiyua**rrar+*arayra*=" "yuruyurwiyuriyurara'rariayuruyuriyuriyu>rarararayuruy9uriyu3riyurar_aBrMaPrOaWy^?" "*]/f]`;hvroai<dp/f*i*s/<ii(f)a{tpguat<cahfaurh(+uf)a;f}vivn+tf/g*`*w/jmaa+i`ni("/** */"i+k[>+b+i>++b++>l[rb";int/**/u;for(i=0;i<101;i++)y[i*2]^="~hktrvg~dmG*eoa+%squ#l2" ":(wn\"1l))v?wM353{/Y;lgcGp`vedllwudvOK`cct~[|ju {stkjalor(stwvne\"gt\"yogYURUYURI"[ i]^y[i*2+1]^4;/*!*/p=(n>1&&(m[1][0]-'-'||m[1][1] !='\0'))?fopen(m[1],y+298):stdin; /*y/riynrt~(^w^)],]c+h+a+r+*+*[n>)+{>f+o<r<(-m] =<2<5<64;}-]-(m+;yry[rm*])/[* */q=(n<3||!(m[2][0]-'-'||m[2][1]))?stdout /*]{ }[*/:fopen(m[2],d+14);if(!p||/* "]<<*-]>y++>u>>+r >+u+++y>--u---r>++i+++" <)< ;[>-m-.>a-.-i.++n.>[(w)*/!q/**/) return+printf("Can " "not\x20open\40%s\40" "" "for\40%sing\n",m[!p?1:2],!p?/* o=82]5<<+(+3+1+&.(+ m +-+1.)<)<|<|.6>4>-+(> m- &-1.9-2-)-|-|.28>-w-?-m.:>([28+ */"read":"writ");for ( a=k=u= 0;y[u]; u=2 +u){y[k++ ]=y[u];}if((a=fread(b,1,1024/* ,mY/R*Y"R*/,p/*U*/)/* R*/ )>/*U{ */ 2&& b/*Y*/[0]/*U*/=='P' &&4==/*"y*r/y)r\} */sscanf(b,d,&k,& A,& i, &r)&& ! (k-6&&k -5)&&r==255){u=A;if(n>3){/* ]&<1<6<?<m.-+1>3> +:+ .1>3+++ . -m-) -;.u+=++.1<0< <; f<o<r<(.;<([m(=)/8*/ u++;i++;}fprintf (q, d,k, u >>1,i>>1,r);u = k-5?8:4;k=3;}else /*]>*/{(u)=/*{ p> >u >t>-]s >++(.yryr*/+( n+14>17)?8/4:8*5/ 4;}for(r=i=0 ; ;){u*=6;u+= (n>3?1:0);if (y[u]&01)fputc(/* <g-e<t.c>h.a r -(-).)8+<1. >;+i.(<)< <)+{+i.f>([180*/1* (r),q);if(y[u ]&16)k=A;if (y[u]&2)k--;if(i/* ("^w^NAMORI; { I*/==a/*" )*/){/**/i=a=(u)*11 &255;if(1&&0>= (a= fread(b,1,1024,p))&& ")]i>(w)-;} { /i-f-(-m--M1-0.)<{" [ 8]==59/* */ )break;i=0;}r=b[i++] ;u+=(/**>> *..</<<<)<[[;]**/+8&* (y+u))?(10- r?4:2):(y[u] &4)?(k?2:4):2;u=y[u/* 49;7i\(w)/;} y}ru\=*ri[ ,mc]o;n}trientuu ren ( */]-(int)'`';} fclose( p);k= +fclose( q); /*] <*.na/m*o{ri{ d;^w^;} }^_^}} " */ return k- -1+ /*\' '-`*/ ( -/*}/ */0x01 ); {;{ }} ; /*^w^*/ ;} |
Das ist ausführbarer Programmcode. Kompilieren wir doch gleich:
gcc akari.c -o akari
Jetzt kommts:
Ich schleuse den obigen Code durch das soeben erzeugte Kompilat.
cat akari.c | ./akari
Was passiert?
DAS DA DA:
int
*w,m,_namori=('n');
#include<stdio.h>/*;hrd"% dnd4%"*/
/**/int(y),u,r[128*2/*{y}icuhya*rr*rya=
*/];void/**/i(){putchar(u);}int/**/main(/*
"(n"l)?M5{YlcpvdluvKct[j skao(tve"t"oYRYR"
*/int(w),char**n){for(m =256;--m;r[m]/*
"<*]y+u>r>u+y-u-r+i+" ) ;>m.a.i+n>()/q*/
=25<(31&( m -1))||64-( m &192)||2>w?m:(2+
m/*"*,/U// R/)/U * & /Y/0/U/=P &=/"*/)\
&16?m-13 : 13+ m) ;u=+10 ;for(;(m=/*
*>/()/{ p u t-s +(yy*+ n1>7?/:*/
getchar ())+1 ;i() ){if(10/*
"wNMR;{ I/=/" )/{*/==u*1
)i(); if(m-10){
u=/*> *./<)[;*/8*
4;i(); }u=r[ m];}return(
* *n/*{i ;w; }_}
( -*/ *00 ) ; } |
Ein kleineres Bild, wieder in ausführbarem Code.
Wenn ich den obigen Code – dieses kleinere Bild – wieder durch das erste Programm schleuse:
cat akari2.c | ./akari
Gibts:
wm_aoi(n)
/*ity,,[2*/{}char*y=
(")M{lpduKtjsa(v""YY"
"*yuruyuri") ;main(/*
/",U/ R)U* Y0U= ="/\
*/){puts (y+ 17/*
"NR{I=" ){/=*
=* */);/*
**/{ ;;}} |
Nochmal ein kleineres Bild! Und wieder ist es ausführbarer Code. Diesen Code schleudern wir wieder durch das erste Programm:
cat akari3.c | ./akari
main (){puts("Y" "U RU YU "\ "RI" )/* */ ;} |
Und nochmal ein kleineres Bild! A.U.S.F.Ü.H.R.B.A.R.E.R. C.O.D.E.™ !!!!!11einself
gcc akari4.c -o akari4
./akari4
YU RU YU RI
Brain fuck.
