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The 2020 winners are hinted it, but the source code is not there,
nor are the hints. Someone could look into the HTML and
see what was commented out, but that is not a problem because
WHO won is known and the name of their AWARD is known already.
Moreover a number of the winners have talked about what their
entirs do, so the commented out spoiler text is not a bit problem.

One will find HTML commented out with:

    <!-- XXX remove when 2020 is ready
    2020 links here
    XXX remove when 2020 is ready -->

The "XXX remove when 2020 is ready" string is found at the
start and end comment blocks.  Again, soneone could read
what was commented out, but that is OK since most of that
information is known or can be known.  The following files
have such HTML comment blocks in them.

    ./winners.html
    ./years-spoiler.html
    ./years.html

In addition, ./all/summary.txt was modified to not
include the 2020 entries for the momemt.

The 2020 winner code AND write-ups are NOT part of this set.

p.s. The all/all.tar.bz2 does not contain the 2020 source code (yet?).
This commit is contained in:
Landon Curt Noll committed 2020-12-30 16:57:03 -08:00
1 parent 28efc67f5d
commit c0663537cb
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2012/hamano/Makefile
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#!/usr/bin/env make
#
# 2012 makefile
#
# This work by Landon Curt Noll, Simon Cooper, and Leonid A. Broukhis
# is licensed under:
#
# Creative Commons Attribution-ShareAlike 3.0 Unported License.
#
# See: http://creativecommons.org/licenses/by-sa/3.0/
################
# tool locations
################
#
SHELL= /bin/bash
CP= cp
CPP= cpp
GUNZIP= gunzip
LD= ld
MAKE= make
RM= rm
SED= sed
TAR= tar
TRUE= true
# Set X11_LIBDIR to the directory where the X11 library resides
#
X11_LIBDIR= /usr/X11R6/lib
# Set X11_INCLUDEDIR to the directory where the X11 include files reside
#
X11_INCDIR= /usr/X11R6/include
# Compiler warnings
#
#CWARN=
CWARN= -Wall -W
#CWARN= -Wall -W -pedantic
# compiler standard
#
#CSTD=
#CSTD= -ansi
CSTD= -std=c99
# compiler bit architecture
#
# Some entries require 32-bitness:
# ARCH= -m32
#
# Some entries require 64-bitess:
# ARCH= -m64
#
# By default we assume nothing:
#
ARCH=
# optimization
#
# Most compiles will safely use -O2. Some can use only -O1 or -O.
# A few compilers have broken optimizers or this entry make break
# under those buggy optimizers and thus you may not want anything.
#
#OPT=
#OPT= -O
#OPT= -O1
OPT= -O2
#OPT= -O3
# Libraries needed to build
#
LIBS=
# default flags for ANSI C compilation
#
CFLAGS= ${CWARN} ${CSTD} ${ARCH} ${OPT} ${LIBS}
# ANSI compiler
#
# Set CC to the name of your ANSI compiler.
#
# Some entries seem to need gcc. If you have gcc, set
# both CC and MAY_NEED_GCC to gcc.
#
# If you do not have gcc, set CC to the name of your ANSI compiler, and
# set MAY_NEED_GCC to either ${CC} (and hope for the best) or to just :
# to disable such programs.
#
CC= cc
#CC=clang
MAY_NEED_GCC= gcc
##############################
# Special flags for this entry
##############################
#
ENTRY= hamano
DATA=
ALT_OBJ=
ALT_ENTRY= hamano.orig
#################
# build the entry
#################
#
all: ${ENTRY} ${DATA}
@${TRUE}
${ENTRY}: ${ENTRY}.c
${CC} ${CFLAGS} $< -o $@
${ALT_ENTRY}: ${ALT_ENTRY}.c
${CC} ${CFLAGS} $< -o $@
# alternative executable
#
alt: ${ALT_ENTRY}
@${TRUE}
# data files
#
data: ${DATA}
@${TRUE}
###############
# utility rules
###############
#
everything: all alt
clean:
${RM} -f ${ENTRY}.o ${ALT_OBJ}
clobber: clean
${RM} -f ${ENTRY} ${ALT_ENTRY}
nuke: clobber
@${TRUE}
dist_clean: nuke
@${TRUE}
install:
@echo "Surely you're joking Mr. Feynman!"
@${TRUE}
# backwards compatibility
#
build: all
@${TRUE}
##################
# 133t hacker rulz
##################
#
love:
@echo 'not war?'
@${TRUE}
haste:
$(MAKE) waste
@${TRUE}
waste:
@echo 'waste'
@${TRUE}
easter_egg:
@echo you expected to mis-understand this $${RANDOM} magic
@echo chongo '<was here>' "/\\oo/\\"
@echo Readers shall be disallowed from not being unable to partly misunderstand this partocular final echo.
# Understand the history of "I Am the Walrus" and
# and in particular John Lennon's remarks on that
# song and you might be confused about these next
# rules in a different way. :-)
#
supernova: nuke
@-if [ -r .code_anal ]; then \
${RM} -f .code_anal_v3; \
else \
echo "You are not expected to understand this"; \
fi
@${TRUE}
deep_magic:
@-if [ -r .code_anal ]; then \
ccode_analysis --deep_magic 1c2c85c7a02c55d1add91967eca491d53c101dc1 --FNV1a_hash 256-bit "${ENTRY}"; \
else \
echo "Understand different"; \
fi
@${TRUE}
magic: deep_magic
@-if [ -r .code_anal ]; then \
ccode_analysis --mode 21701 --level 23209 --FNV1a_hash 256-bit "${ENTRY}"; \
else \
echo "These aren't the droids you're looking for Mr. Spock!"; \
fi
@${TRUE}
2012/hamano/hamano.c
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#define \
D(s)"<<"#s">>"
#define q(s)p(#s)
#define S " endobj "
#define Y "endstream"S
#include <stdio.h>
#define o(s) b[s]=_;\
p("%u 0 obj",s);
#define E for (c=d;c < 123;c++)
#define DANCE "trailer "D\
(/Root 3 0 R /Size %d) "\nstartxref %u %%%%EOF\n*/"
#define p(s, ...) _+=printf(s, ##__VA_ARGS__)
#define C "<</Type/Page /Parent %d %d R /Resources <<\
/ProcSet[ /PDF/Text]/Font <</U"D(/Subtype/Type1/BaseFont\
/Courier) " /T<</Subtype/Type3 /FontBBox[0 0 10 10]/FontMatrix[\
%f 0 0 %f 0 0]/FirstChar %d/LastChar %d/Encoding<</Differences[%d"
typedef int N;typedef char*Nyan;typedef char A;N a,b[64],d=65,_,v
[32]={84,0,64,282,90,74,330,85,93,173,167,176,80,208,81,13,7,87
,160,346,32,128,170,218,16,26}; Nyan w[]={"+*-(,&-&","+*,&-&"
,"+*.&/&","+*/*/+","+*())'('" ,"+**&)&","+*(&'&","+*'*'+",
"","+,./","+,-,./","+--,+*" ,"","+,(/","+,),(/","+-),+*"
,"10 0 d0 ","8 7 2 2 re " ,"+*+.'`'@'mi +/+/(mi"};Nyan
nyan(Nyan _,N y,A n){
N g=v[~-y%32];Nyan
s=w[g>>n&3|n*2];
for(a=0;*_=*s++;
a++,_++,*_++=32)
{*_+=*_-32?10:0;
if(a%2&&*_/16==3
){if(g>>8)*_=105-*_;
_++;*_++=32;*_=~-a&&a-13
?108:109;}}return n?n-9?nyan
(_,y,n-2):_:nyan(_+=~y&' '?sprintf
(_,17[w]):0,y,9);}N main(N c){A e[256];
p("/*%%PDF-1.3%%*/")-2;q(#include<stdio.h>\n);
q(#define o *_++&& *_-41\n#define);p(" endstream ");q
(main(){for(;*_++; *_-40?:putchar(o?*_:o?10:41));\n)
;q(#define endobj return 0;}\n);q(typedef int ET;/)
;q(*);o(1)*b=~(p(D (/Length 2 0 R)"stream\n"))
;for(p("BT 12 818" " Td/%c 12 Tf 12 TL%%%c/"
"static char*_=\"" " \\\n",7[v],*v/2);c=
getchar(),~c;c-10? p("/%c 12 Tf(\\%o)"
"Tj",v[~-c%' '<25[ v]&&!~-(~-c/'@')?0
:7],c):(p("()'"))) ;p("%%\";\nET ");*
b-=~_;p(Y"/*");E{a =nyan(e+sprintf(e,
16[w]),c,6)-e;o(c- 59)p(D(/Length %d)
"stream\n%s"Y,a,e) ;}o(2)p(" %u"S,*b);
o(3)p(D(/Pages 4 0 R)S);o(4)p(D(/Count
1/MediaBox[0 0 595 842]/Kids[5 0 R])S)
;o(5)p(C,4,0,6e-2, 6e-2f,d,122,d);E p(
"/%c",~-c/6+~14?c: d);q(]>>/CharProcs<<)
;E if(~-c/6+~14)p( "/%c %d 0 R",c,c+~58);
for(q(>>/Widths[), c=59;--c;p(" 10"));a=p
("]>>>>>>/Contents 1 0 R>>"S);for(p("xref\
0 %d ",--d);c<d;p("%010u\
%05d n ",*(c+++b),NULL));
return!(p(DANCE,d,a));}
2012/hamano/hamano.orig.c
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#define \
D(s)"<<"#s">>"
#define q(s)p(#s)
#define S " endobj "
#define Y "endstream"S
#include <stdio.h>
#define o(s) b[s]=_;\
p("%u 0 obj",s);
#define E for (c=d;c < 123;c++)
#define DANCE "trailer "D\
(/Root 3 0 R /Size %d) "\nstartxref %u %%%%EOF\n*/"
#define p(s, ...) _+=printf(s, ##__VA_ARGS__)
#define C "<</Type/Page /Parent %d %d R /Resources <<\
/ProcSet[ /PDF/Text]/Font <</U"D(/Subtype/Type1/BaseFont\
/Courier) " /T<</Subtype/Type3 /FontBBox[0 0 10 10]/FontMatrix[\
%f 0 0 %f 0 0]/FirstChar %d/LastChar %d/Encoding<</Differences[%d"
typedef int N;typedef char*Nyan;typedef char A;N a,b[64],d=65,_,v
[32]={84,0,64,282,90,74,330,85,93,173,167,176,80,208,81,13,7,87
,160,346,32,128,170,218,16,26}; Nyan w[]={"+*-(,&-&","+*,&-&"
,"+*.&/&","+*/*/+","+*())'('" ,"+**&)&","+*(&'&","+*'*'+",
"","+,./","+,-,./","+--,+*" ,"","+,(/","+,),(/","+-),+*"
,"10 0 d0 ","8 7 2 2 re " ,"+*+.'`'@'mi +/+/(mi"};Nyan
nyan(Nyan _,N y,A n){
N g=v[~-y%32];Nyan
s=w[g>>n&3|n*2];
for(a=0;*_=*s++;
a++,_++,*_++=32)
{*_+=*_-32?10:0;
if(a%2&&*_/16==3
){if(g>>8)*_=105-*_;
_++;*_++=32;*_=~-a&&a-13
?108:109;}}return n?n-9?nyan
(_,y,n-2):_:nyan(_+=~y&' '?sprintf
(_,17[w]):0,y,9);}N main(N c){A e[256];
p("/*%%PDF-1.3%%*/")-2;q(#include<stdio.h>\n);
q(#define o *_++&& *_-41\n#define);p(" endstream ");q
(main(){for(;*_++; *_-40?:putchar(o?*_:o?10:41));\n)
;q(#define endobj return 0;}\n);q(typedef int ET;/)
;q(*);o(1)*b=~(p(D (/Length 2 0 R)"stream\n"))
;for(p("BT 12 818" " Td/%c 12 Tf 12 TL%%%c/"
"static char*_=\"" " \\\n",7[v],*v/2);c=
getchar(),~c;c-10? p("/%c 12 Tf(\\%o)"
"Tj",v[~-c%' '<25[ v]&&!~-(~-c/'@')?0
:7],c):(p("()'"))) ;p("%%\";\nET ");*
b-=~_;p(Y"/*");E{a =nyan(e+sprintf(e,
16[w]),c,6)-e;o(c- 59)p(D(/Length %d)
"stream\n%s"Y,a,e) ;}o(2)p(" %u"S,*b);
o(3)p(D(/Pages 4 0 R)S);o(4)p(D(/Count
1/MediaBox[0 0 595 842]/Kids[5 0 R])S)
;o(5)p(C,4,0,6e-2, 6e-2f,d,122,d);E p(
"/%c",~-c/6+~14?c: d);q(]>>/CharProcs<<)
;E if(~-c/6+~14)p( "/%c %d 0 R",c,c+~58);
for(q(>>/Widths[), c=';';--c;p(" 10"));*b
=q(]>>>>>>/Contents 1 0 R>>);for(p("xref 0 "
"%d ",--d);c<d;)p("%010"
"u %05d n ",*(c+++b),0);
return!(p(DANCE,d,*b));}
2012/hamano/hint.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta name="GENERATOR" content="mkd2html 2.1.5a DL=DISCOUNT">
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=utf-8">
<link rel="stylesheet"
type="text/css"
href="../hint.css">
<title>Most elementary use of C - Silver award</title>
</head>
<body>
<h1>Most elementary use of C - Silver award</h1>
<p>Tsukasa Hamano<br>
<a href="&#109;&#97;&#105;&#108;&#116;&#x6f;&#x3a;&#x68;&#x61;&#x6d;&#x61;&#110;&#111;&#x40;&#x63;&#117;&#115;&#112;&#121;&#46;&#111;&#114;&#x67;">&#104;&#97;&#109;&#x61;&#110;&#x6f;&#64;&#99;&#x75;&#x73;&#112;&#x79;&#x2e;&#111;&#114;&#103;</a></p>
<h2>Judges' comments:</h2>
<h3>To build:</h3>
<pre><code>make hamano
</code></pre>
<h3>To run:</h3>
<pre><code>./hamano &lt; textfile &gt; output.pdf
</code></pre>
<h3>Try:</h3>
<pre><code>./hamano &lt; hint.text &gt; hint.pdf
# You can read output.pdf with PDF reader
acroread hint.pdf
# or
evince hint.pdf
# deobfuscate
gcc -xc hint.pdf -o hint
./hint
# Of course, You can obfuscate c code
echo 'void main(){puts("Hello World!");}' | ./hamano &gt; hello.pdf
gcc -xc hello.pdf -o hello2
./hello2 | gcc -xc - -o ./hello3
./hello3
</code></pre>
<h3>Selected Judges Remarks:</h3>
<p>This entry treads into a new territory for IOCCC - generating PDF files.</p>
<p>The originally submitted entry could have been thought of as a &ldquo;Best abuse of
Ghostscript&rdquo; winner. :-)</p>
<p>The source code and rendered pages are obfuscated for humans (where
is the font?), and the submitted entry created PDF files that left Ghostscript
confused.</p>
<p>The results can be viewed with Acrobat Reader,
<a href="http://en.wikipedia.org/wiki/Evince">evince</a> and Apple&rsquo;s Preview.</p>
<p>The updated version can also be viewed using Ghostscript.</p>
<p>There is something strange about the little flags in the output.
A search of English literature will provide a hint. The conclusion
you might draw is too elementary. :-)</p>
<p>So what do those flags really mean?</p>
<p>The [Dancing men algorithm][1] might be useful.</p>
<p>Don&rsquo;t forget to take a look at the generated PDF, perhaps you might even want
to compile the output with a C compiler. When you run it, what does it
output?</p>
<h2>Author&rsquo;s comments:</h2>
<p>This program obfuscate text file into PDF file with Dancing men
algorithm.</p>
<p><a href="http://en.wikipedia.org/wiki/The_Adventure_of_the_Dancing_Men">http://en.wikipedia.org/wiki/The_Adventure_of_the_Dancing_Men</a></p>
<p>Probably, the output PDF file is compliant with PDF 1.3. And also
available to compile as C code.</p>
<p>I&rsquo;ve been tested with GCC 4.7 and Clang 3.0 on Linux, and following
PDF Reader:</p>
<ul>
<li>Adobe Acrobat Reader</li>
<li>Evince</li>
<li>Ghostscript</li>
<li>Xpdf</li>
</ul>
<h3>Obfuscations</h3>
<p>This program is obfuscated by using classical methods.
But can you find out the embedded font from fragmented glyph?</p>
<hr />
<!--
(c) Copyright 1984-2015, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
[judges]: http://www.ioccc.org/judges.html
[cc]: http://creativecommons.org/licenses/by-sa/3.0/
-->
<TABLE><TR>
<TD><a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" /></a></TD>
<TD><P>&copy; Copyright 1984-2015,
<A HREF="/judges.html">Leo Broukhis, Simon Cooper, Landon Curt Noll</A>
- All rights reserved<BR>
This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/">Creative Commons Attribution-ShareAlike 3.0 Unported License</a>.</P></TD>
<TD>&nbsp;<!--<a href="http://validator.w3.org/check?uri=referer"><img src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01 Transitional" height="31" width="88"></a>--></TD>
</TR></TABLE>
</body>
</html>
2012/hamano/hint.text
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# Most elementary use of C - Silver award
Tsukasa Hamano
<hamano@cuspy.org>
## Judges' comments:
### To build:
make hamano
### To run:
./hamano < textfile > output.pdf
### Try:
./hamano < hint.text > hint.pdf
# You can read output.pdf with PDF reader
acroread hint.pdf
# or
evince hint.pdf
# deobfuscate
gcc -xc hint.pdf -o hint
./hint
# Of course, You can obfuscate c code
echo 'void main(){puts("Hello World!");}' | ./hamano > hello.pdf
gcc -xc hello.pdf -o hello2
./hello2 | gcc -xc - -o ./hello3
./hello3
### Selected Judges Remarks:
This entry treads into a new territory for IOCCC - generating PDF files.
The originally submitted entry could have been thought of as a "Best abuse of
Ghostscript" winner. :-)
The source code and rendered pages are obfuscated for humans (where
is the font?), and the submitted entry created PDF files that left Ghostscript
confused.
The results can be viewed with Acrobat Reader,
[evince](http://en.wikipedia.org/wiki/Evince) and Apple's Preview.
The updated version can also be viewed using Ghostscript.
There is something strange about the little flags in the output.
A search of English literature will provide a hint. The conclusion
you might draw is too elementary. :-)
So what do those flags really mean?
The [Dancing men algorithm][1] might be useful.
Don't forget to take a look at the generated PDF, perhaps you might even want
to compile the output with a C compiler. When you run it, what does it
output?
## Author's comments:
This program obfuscate text file into PDF file with Dancing men
algorithm.
<http://en.wikipedia.org/wiki/The_Adventure_of_the_Dancing_Men>
Probably, the output PDF file is compliant with PDF 1.3. And also
available to compile as C code.
I've been tested with GCC 4.7 and Clang 3.0 on Linux, and following
PDF Reader:
* Adobe Acrobat Reader
* Evince
* Ghostscript
* Xpdf
### Obfuscations
This program is obfuscated by using classical methods.
But can you find out the embedded font from fragmented glyph?
--------------------------------------------------------------------------------
<!--
(c) Copyright 1984-2015, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
[judges]: http://www.ioccc.org/judges.html
[cc]: http://creativecommons.org/licenses/by-sa/3.0/
-->