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fix Makefile and README.md for 2014/birken

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Landon Curt Noll committed 2023-03-24 02:43:01 -07:00
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2014/birken/Makefile
+199 -76
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@@ -1,125 +1,196 @@
#!/usr/bin/env make
#
# 2014 makefile
# IOCCC 2014 winning entry - birken
################################################################################
#
# This work by Landon Curt Noll, Simon Cooper, and Leonid A. Broukhis
# is licensed under:
# Regarding individual entries:
#
# IOCCC winning entry code may not work on your system. Even with standards,
# conditions and build environments change, especially when it comes to more
# extreme code such you might find in an IOCCC winner. Moreover, what was
# allowed and liked in one IOCCC contest may no longer be liked/allowed in
# later IOCCC years.
#
# Corrections on winning author and fixing typos in remarks are VERY WELCOME.
#
# GitHub pull requests are welcome:
#
# If you have a patch that might make running an entry work in modern Unix-like
# environments, please create a GitHub pull request for the IOCCC judges to
# consider.
#
# Suggestions and corrections regarding Makefiles, winning author information,
# fixing typos in remarks, and code patches are welcome via opening a GitHub
# issue or better yet, by creating a GitHub pull request for the IOCCC judges
# to consider. To form a GitHub issue or GitHub pull, please visit:
#
# https://github.com/ioccc-src/winner
#
################################################################################
# This work by Landon Curt Noll 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 used by this Makefile
#############################
#
SHELL= bash
CP= cp
CPP= cpp
GUNZIP= gunzip
LD= ld
MAKE= make
RM= rm
SED= sed
TAR= tar
TRUE= true
#######################
# common tool locations
#######################
#
include ../../var.mk
# Set X11_LIBDIR to the directory where the X11 library resides
#
X11_LIBDIR= /usr/X11R6/lib
#X11_LIBDIR= /usr/X11R6/lib
#X11_LIBDIR= /usr/X11/lib
X11_LIBDIR= /opt/X11/lib
# Set X11_INCLUDEDIR to the directory where the X11 include files reside
#
X11_INCDIR= /usr/X11R6/include
#X11_INCDIR= /usr/X11R6/include
#X11_INCDIR= /usr/X11/include
X11_INCDIR= /opt/X11/include
# Compiler warnings
# Common C compiler warnings to silence
#
#CWARN=
CWARN= -Wall
#CWARN= -Wall -pedantic
#CSILENCE=
CSILENCE= -Wno-comment -Wno-dangling-else -Wno-error \
-Wno-implicit-function-declaration -Wno-incompatible-pointer-types \
-Wno-parentheses -Wno-trigraphs -Wno-newline-eof
# compiler standard
# Common C compiler warning flags
#
#CWARN= ${CSILENCE}
#CWARN= -Wall ${CSILENCE}
#CWARN= -Wall -Wextra ${CSILENCE}
CWARN= -Wall -Wextra -pedantic ${CSILENCE}
# Compiler standard
#
#CSTD=
#CSTD= -ansi
CSTD= -std=c99
# compiler bit architecture
# Compiler bit architecture
#
# Some entries require 32-bitness:
# ARCH= -m32
#
# Some entries require 64-bitess:
# Some entries require 64-bitness:
# ARCH= -m64
#
# By default we assume nothing:
#
ARCH=
# optimization
# Defines that are needed to compile
#
CDEFINE=
#CDEFINE= -DIOCCC
# Include files that are needed to compile
#
CINCLUDE=
#CINCLUDE= -include stdlib.h
#CINCLUDE= -include stdio.h
#CINCLUDE= -include stdlib.h -include stdio.h
#CINCLUDE= -I ${X11_INCDIR} -I ${X11_INCDIR}/X11
#CINCLUDE= `${SDL2_CONFIG} --cflags`
# 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.
# Reasonable compilers will allow for -O3.
#
#OPT=
#OPT= -O
#OPT= -O1
OPT= -O2
#OPT= -O3
#OPT= -O2
OPT= -O3
# Default flags for ANSI C compilation
#
CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
# Libraries needed to build
#
LIBS=
#LIBS= -lm
#LIBS= -L ${X11_LIBDIR} -lX11
#LIBS= `${SDL2_CONFIG} --libs`
# default flags for ANSI C compilation
#
CFLAGS= ${CWARN} ${CSTD} ${ARCH} ${OPT} \
-Wno-comment -Wno-dangling-else -Wno-implicit-function-declaration \
-Wno-incompatible-pointer-types -Wno-parentheses \
-Wno-trigraphs --include string.h
# 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 ${CC} (and hope for the best) or to just :
# to disable such programs.
# C compiler to use
#
CC= cc
#CC=clang
MAY_NEED_GCC= gcc
#CC=gcc
# Compiler add-ons or replacements for clang only
#
ifeq ($(CC),clang)
#
CSILENCE+= -Wno-comma -Wno-format-nonliteral -Wno-implicit-int-conversion \
-Wno-missing-prototypes -Wno-missing-variable-declarations \
-Wno-poison-system-directories -Wno-sign-conversion
#
CWARN+= -Weverything
#
endif
# Specific add-ons or replacements for gcc only
#
ifeq ($(CC),gcc)
#
#CSILENCE+=
#
#CWARN+=
#
endif
##############################
# Special flags for this entry
##############################
#
ENTRY= prog
ENTRY= birken
PROG= prog
#
OBJ= ${PROG}.o
DATA=
TARGET= ${PROG}
#
ALT_OBJ=
ALT_ENTRY=
ALT_TARGET=
#################
# build the entry
#################
#
all: ${ENTRY} ${DATA}
all: data ${TARGET}
@${TRUE}
${ENTRY}: ${ENTRY}.c
.PHONY: all alt data everything clean clobber install \
love haste waste maker easter_egg sandwich \
supernova deep_magic magic charon pluto
${PROG}: ${PROG}.c
${CC} ${CFLAGS} $< -o $@ ${LIBS}
# alternative executable
#
alt: ${ALT_ENTRY}
alt: data ${ALT_TARGET}
@${TRUE}
# data files
@@ -127,33 +198,51 @@ alt: ${ALT_ENTRY}
data: ${DATA}
@${TRUE}
# both all and alt
#
everything: all alt
###############
# utility rules
###############
#
everything: all alt
clean:
${RM} -f ${ENTRY}.o ${ALT_OBJ}
${RM} -f ${OBJ} ${ALT_OBJ}
@-if [ -f indent.c ]; then \
echo ${RM} -f indent.c; \
${RM} -f indent.c; \
fi
clobber: clean
${RM} -f ${ENTRY} ${ALT_ENTRY}
nuke: clobber
@${TRUE}
dist_clean: nuke
@${TRUE}
${RM} -f ${TARGET} ${ALT_TARGET}
@-if [ -e sandwich ]; then \
${RM} -f sandwich; \
echo 'ate sandwich'; \
fi
install:
@echo "Surely we are joking Dr. Science!"
@echo "Dr. Spock says that is not logical!"
@${TRUE}
# backwards compatibility
# you may be able to misunderstand the source by reading indent.c
#
build: all
@${TRUE}
indent.c: ${PROG}.c
@if which "${GINDENT}" >/dev/null 2>&1; then \
echo ${RM} -f $@; \
${RM} -f $@; \
echo "${GINDENT} < $< > $@"; \
${GINDENT} < $< > $@; \
elif which "${INDENT}" >/dev/null 2>&1; then \
echo ${RM} -f $@; \
${RM} -f $@; \
echo "${INDENT} < $< > $@"; \
${INDENT} < $< > $@; \
else \
echo "no intent tool found, ident $< yourself, sorry"; \
echo "exit 1"; \
exit 1; \
fi
##################
@@ -172,35 +261,69 @@ waste:
@echo 'haste'
@${TRUE}
maker:
@echo 'Participate in a maker faire'
@${TRUE}
easter_egg:
@echo you expected to sometimes mis-understand this $${RANDOM} magic
@echo chongo '<was here>' "/\\oo/\\"
@echo Readers shall not be disallowed from failong to be unable to not partly misunderstand this partocular final echo.
@echo "you expected to often misunderstand this $${RANDOM} magic"
@echo "chongo '<was here>' /\\oo/\\"
@echo "Eggy"
sandwich: easter_egg
@if [ `id -u` -eq 0 ]; then \
echo 'Okay.'; \
echo "$${RANDOM}`date +%s`$${RANDOM}" > $@; \
else \
echo 'What? Make it yourself.'; \
exit 1; \
fi
# Understand the history of the Homebrew Computer Club
# as well as the West Coast Computer Faire and
# you might be confused different. :-)
#
supernova: nuke
supernova: sandwich
@-if [ -r .code_anal ]; then \
${RM} -f .code_anal_v4; \
${RM} -f .code_anal_v6; \
else \
echo "We are not expected to understand that"; \
echo "planet deniers, like some members of the IAU, are so cute when they try to defend their logic"; \
fi
@echo "A $@ helps ${MAKE} the elements that help form planets"
@${TRUE}
deep_magic:
deep_magic: supernova
@-if [ -r .code_anal ]; then \
ccode_analysis --deep_magic 2ed3582ec5c094a093fea2a6bcb9f19439892873c9cc45ed1ceaafe08b7d52e1b2c7cd524be3b0b2 --FNV1a_hash 512-bit "${ENTRY}"; \
ccode_analysis --deep_magic 7889066cdbdf09b0408021754586e895be641cc9be29e7eafd3ca65359541f17 \
--FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
else \
echo "You are holding it wrong!"; \
echo "Wrong! Do it again!"; \
sleep 2; \
echo "Wrong! Do it again!"; \
sleep 2; \
echo "Wrong! Do it again!"; \
fi
@${TRUE}
magic: deep_magic
@-if [ -r .code_anal ]; then \
ccode_analysis --mode 391581 --level 216193 --FNV1a_hash 512-bit "${ENTRY}"; \
ccode_analysis --level 20003 --mode 5717175 --FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
else \
echo "These aren't the primes you're looking for Pauline!"; \
echo "If you don't eat yer meat, you can't have any pudding!"; \
echo "How can you have any pudding if you don't eat yer meat?!"; \
fi
@${TRUE}
# The IOCCC resident astronomer states
#
charon: magic
@echo "$@ is a dwarf planet"
@echo "dwarf is a type of planet"
@echo "therefore IAU, $@ is a planet"
pluto: charon
${MAKE} charon
@echo "$@ is a dwarf planet"
@echo "dwarf is a type of planet"
@echo "therefore, $@ is a planet"
@echo "having lots of planets is good feature because supernovae can help ${MAKE} a lot of them"
2014/birken/README.md
+43 -30
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@@ -1,31 +1,34 @@
# Best use of port 1701
Michael Birken
<o__1@hotmail.com>
<http://www.meatfighter.com/>
Michael Birken
<o__1@hotmail.com>
<http://www.meatfighter.com/>
Alexander Prishchepov
<https://github.com/sans17/>
Alexander Prishchepov
<https://github.com/sans17/>
# To build:
## Judges' comments:
### To build:
make
```sh
make
```
### To run:
./prog < some_secret_or_something
```sh
./prog < some_secret_or_something
./prog http://host[:port]
./prog http://host[:port]
```
### Try:
./prog.c
```sh
./prog
./prog http://127.0.0.1:1701
./prog http://127.0.0.1:1701
### Selected Judges Remarks:
## Judges' comments:
Port 1701? Well this is not the l2f registered TCP/1701 protocol.
Sniff the traffic to/from that port. You will see HTTP client
@@ -39,25 +42,34 @@ So how does this program do it? A trek though the cloak of
obfuscation awaits the reader of the source!
## Author's comments:
### Abstract
When launched in web server mode, this application appears to deliver nothing more than a static HTML page. But, in actuality, it provides covert file transfer over the Internet. This is demonstrated by starting the application as a client-side downloader. The hidden transmitted data cannot be reconstructed or even detected from the binary content of the traffic between the client and the server.
### To run web server
./prog < secret_file_to_be_downloaded
```sh
./prog < secret_file_to_be_downloaded
```
Try using the program's source code as the secret file:
./prog < prog.c
```sh
./prog < prog.c
```
### To run client-side downloader
./prog http://host[:port]
```sh
./prog http://host[:port]
```
The optional port defaults to 1701. If the web server instance is started on the same box, try:
./prog http://127.0.0.1:1701
```sh
./prog http://127.0.0.1:1701
```
It will incrementally display the contents of the hidden file at a rate of approximately 1 baud.
@@ -110,23 +122,24 @@ The NCC constant is the web server port number.
For space considerations, the following include statements were dropped resulting in compiler warnings:
#include <asm/byteorder.h>
#include <ctype.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/unistd.h>
```c
#include <asm/byteorder.h>
#include <ctype.h>
#include <netinet/in.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/unistd.h>
```
It may be necessary to restore some of these under certain environments.
--------------------------------------------------------------------------------
<!--
## Copyright:
(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/
-->