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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 #!/usr/bin/env make
# #
# 2014 makefile # IOCCC 2014 winning entry - birken
################################################################################
# #
# This work by Landon Curt Noll, Simon Cooper, and Leonid A. Broukhis # Regarding individual entries:
# is licensed under: #
# 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. # Creative Commons Attribution-ShareAlike 3.0 Unported License.
# #
# See: http://creativecommons.org/licenses/by-sa/3.0/ # See: http://creativecommons.org/licenses/by-sa/3.0/
################ #############################
# tool locations # shell used by this Makefile
################ #############################
# #
SHELL= bash SHELL= bash
CP= cp
CPP= cpp #######################
GUNZIP= gunzip # common tool locations
LD= ld #######################
MAKE= make #
RM= rm include ../../var.mk
SED= sed
TAR= tar
TRUE= true
# Set X11_LIBDIR to the directory where the X11 library resides # 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 # 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= #CSILENCE=
CWARN= -Wall CSILENCE= -Wno-comment -Wno-dangling-else -Wno-error \
#CWARN= -Wall -pedantic -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=
#CSTD= -ansi #CSTD= -ansi
CSTD= -std=c99 CSTD= -std=c99
# compiler bit architecture # Compiler bit architecture
# #
# Some entries require 32-bitness: # Some entries require 32-bitness:
# ARCH= -m32 # ARCH= -m32
# #
# Some entries require 64-bitess: # Some entries require 64-bitness:
# ARCH= -m64 # ARCH= -m64
# #
# By default we assume nothing: # By default we assume nothing:
# #
ARCH= 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. # Most compiles will safely use -O2. Some can use only -O1 or -O.
# A few compilers have broken optimizers or this entry make break # A few compilers have broken optimizers or this entry make break
# under those buggy optimizers and thus you may not want anything. # under those buggy optimizers and thus you may not want anything.
# Reasonable compilers will allow for -O3.
# #
#OPT= #OPT=
#OPT= -O #OPT= -O
#OPT= -O1 #OPT= -O1
OPT= -O2 #OPT= -O2
#OPT= -O3 OPT= -O3
# Default flags for ANSI C compilation
#
CFLAGS= ${CSTD} ${CWARN} ${ARCH} ${CDEFINE} ${CINCLUDE} ${OPT}
# Libraries needed to build # Libraries needed to build
# #
LIBS= LIBS=
#LIBS= -lm
#LIBS= -L ${X11_LIBDIR} -lX11
#LIBS= `${SDL2_CONFIG} --libs`
# default flags for ANSI C compilation # C compiler to use
#
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 ${CC} (and hope for the best) or to just :
# to disable such programs.
# #
CC= cc CC= cc
#CC=clang #CC=clang
MAY_NEED_GCC= gcc #CC=gcc
# Compiler add-ons or replacements for clang only
#
ifeq ($(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 # Special flags for this entry
############################## ##############################
# #
ENTRY= prog ENTRY= birken
PROG= prog
#
OBJ= ${PROG}.o
DATA= DATA=
TARGET= ${PROG}
#
ALT_OBJ= ALT_OBJ=
ALT_ENTRY= ALT_TARGET=
################# #################
# build the entry # build the entry
################# #################
# #
all: ${ENTRY} ${DATA} all: data ${TARGET}
@${TRUE} @${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} ${CC} ${CFLAGS} $< -o $@ ${LIBS}
# alternative executable # alternative executable
# #
alt: ${ALT_ENTRY} alt: data ${ALT_TARGET}
@${TRUE} @${TRUE}
# data files # data files
@@ -127,33 +198,51 @@ alt: ${ALT_ENTRY}
data: ${DATA} data: ${DATA}
@${TRUE} @${TRUE}
# both all and alt
#
everything: all alt
############### ###############
# utility rules # utility rules
############### ###############
# #
everything: all alt
clean: 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 clobber: clean
${RM} -f ${ENTRY} ${ALT_ENTRY} ${RM} -f ${TARGET} ${ALT_TARGET}
@-if [ -e sandwich ]; then \
nuke: clobber ${RM} -f sandwich; \
@${TRUE} echo 'ate sandwich'; \
fi
dist_clean: nuke
@${TRUE}
install: install:
@echo "Surely we are joking Dr. Science!" @echo "Dr. Spock says that is not logical!"
@${TRUE} @${TRUE}
# backwards compatibility # you may be able to misunderstand the source by reading indent.c
# #
build: all indent.c: ${PROG}.c
@${TRUE} @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 $< yourself, sorry"; \
echo "exit 1"; \
exit 1; \
fi
################## ##################
@@ -172,35 +261,69 @@ waste:
@echo 'haste' @echo 'haste'
@${TRUE} @${TRUE}
maker:
@echo 'Participate in a maker faire'
@${TRUE}
easter_egg: easter_egg:
@echo you expected to sometimes mis-understand this $${RANDOM} magic @echo "you expected to often misunderstand this $${RANDOM} magic"
@echo chongo '<was here>' "/\\oo/\\" @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 "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 # Understand the history of the Homebrew Computer Club
# as well as the West Coast Computer Faire and # as well as the West Coast Computer Faire and
# you might be confused different. :-) # you might be confused different. :-)
# #
supernova: nuke supernova: sandwich
@-if [ -r .code_anal ]; then \ @-if [ -r .code_anal ]; then \
${RM} -f .code_anal_v4; \ ${RM} -f .code_anal_v6; \
else \ 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 fi
@echo "A $@ helps ${MAKE} the elements that help form planets"
@${TRUE} @${TRUE}
deep_magic: deep_magic: supernova
@-if [ -r .code_anal ]; then \ @-if [ -r .code_anal ]; then \
ccode_analysis --deep_magic 2ed3582ec5c094a093fea2a6bcb9f19439892873c9cc45ed1ceaafe08b7d52e1b2c7cd524be3b0b2 --FNV1a_hash 512-bit "${ENTRY}"; \ ccode_analysis --deep_magic 7889066cdbdf09b0408021754586e895be641cc9be29e7eafd3ca65359541f17 \
--FNV1a_hash_512_bit -v2 "${PROG}" "${PROG}.c"; \
else \ 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 fi
@${TRUE} @${TRUE}
magic: deep_magic magic: deep_magic
@-if [ -r .code_anal ]; then \ @-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}" "${PROG}.c"; \
else \ else \
echo "These aren't the primes you're looking for Pauline!"; \ echo "If you don't eat yer meat, you can't have any pudding!"; \
echo "How can you have any pudding if you don't eat yer meat?!"; \
fi fi
@${TRUE} @${TRUE}
# The IOCCC resident astronomer states
#
charon: magic
@echo "$@ 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
View File
@@ -1,31 +1,34 @@
# Best use of port 1701 # Best use of port 1701
Michael Birken Michael Birken
<o__1@hotmail.com> <o__1@hotmail.com>
<http://www.meatfighter.com/> <http://www.meatfighter.com/>
Alexander Prishchepov Alexander Prishchepov
<https://github.com/sans17/> <https://github.com/sans17/>
# To build:
## Judges' comments: ```sh
### To build: make
```
make
### To run: ### To run:
./prog < some_secret_or_something ```sh
./prog < some_secret_or_something
./prog http://host[:port] ./prog http://host[:port]
```
### Try: ### 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. Port 1701? Well this is not the l2f registered TCP/1701 protocol.
Sniff the traffic to/from that port. You will see HTTP client 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! obfuscation awaits the reader of the source!
## Author's comments: ## Author's comments:
### Abstract ### 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. 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 ### 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: Try using the program's source code as the secret file:
./prog < prog.c ```sh
./prog < prog.c
```
### To run client-side downloader ### 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: 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. 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: For space considerations, the following include statements were dropped resulting in compiler warnings:
#include <asm/byteorder.h> ```c
#include <ctype.h> #include <asm/byteorder.h>
#include <netinet/in.h> #include <ctype.h>
#include <stdlib.h> #include <netinet/in.h>
#include <string.h> #include <stdlib.h>
#include <sys/select.h> #include <string.h>
#include <sys/socket.h> #include <sys/select.h>
#include <sys/types.h> #include <sys/socket.h>
#include <sys/unistd.h> #include <sys/types.h>
#include <sys/unistd.h>
```
It may be necessary to restore some of these under certain environments. 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 (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]. This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
[judges]: http://www.ioccc.org/judges.html [judges]: http://www.ioccc.org/judges.html
[cc]: http://creativecommons.org/licenses/by-sa/3.0/ [cc]: http://creativecommons.org/licenses/by-sa/3.0/
-->