diff --git a/Makefile b/Makefile index e7db1a4..fed340f 100644 --- a/Makefile +++ b/Makefile @@ -1,26 +1,181 @@ -PROJ := badass -PROJw := $(PROJ).exe -FILES := badass -BDIR := bin -OBJS := $(patsubst %,$(BDIR)/%.o,$(FILES)) -SRCS := $(patsubst %,%.c,$(FILES)) -H := $(patsubst %,%.h,$(FILES)) +# GNU Make 3.81; MacOSX gcc 4.2.1; clang 19.6.0; MacOSX MinGW 4.3.0 -CC := gcc -OF := -Wall -O3 -fasm -fomit-frame-pointer -ffast-math -funroll-loops -fasm -fomit-frame-pointer -ffast-math -funroll-loops -pedantic -ansi -CF := -ansi +# https://stackoverflow.com/questions/18136918/how-to-get-current-relative-directory-of-your-makefile +mkfile_path := $(abspath $(lastword $(MAKEFILE_LIST))) +current_dir := $(notdir $(patsubst %/,%,$(dir $(mkfile_path)))) -CCw := /usr/local/i386-mingw32-4.3.0/bin/i386-mingw32-gcc -OFw := -Wall -O3 -fasm -fomit-frame-pointer -ffast-math -funroll-loops -fasm -fomit-frame-pointer -ffast-math -funroll-loops -pedantic -mwindows +project := $(current_dir) -default: $(BDIR)/$(PROJ) +# dirs +src := src +test := test +build := build +bin := bin +backup := backup +doc := doc +media := media +#lemon := lemon +PREFIX := /usr/local -$(BDIR)/$(PROJ): $(OBJS) - $(CC) $(OF) $(CF) $^ -o $@ +# files in $(bin) +install := $(project)-`date +%Y-%m-%d` -$(BDIR)/%.o: %.c - $(CC) $(OF) -c $< -o $@ +# extra stuff we should back up +extra := $(project).xcodeproj + +# John Graham-Cumming: rwildcard is a recursive wildcard +rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) \ +$(filter $(subst *,%,$2),$d)) + +java_srcs := $(call rwildcard, $(src), *.java) +c_srcs := $(call rwildcard, $(src), *.c) +h_srcs := $(call rwildcard, $(src), *.h) +c_re_srcs := $(call rwildcard, $(src), *.c.re) +c_rec_srcs := $(call rwildcard, $(src), *.c.re_c) +y_srcs := $(call rwildcard, $(src), *.y) +c_tests := $(call rwildcard, $(test), *.c) +h_tests := $(call rwildcard, $(test), *.h) +icons := $(call rwildcard, $(media), *.ico) + +# combinations +all_h := $(h_srcs) $(h_tests) +all_srcs := $(java_srcs) $(c_srcs) $(c_re_srcs) $(c_rec_srcs) $(y_srcs) +all_tests := $(c_tests) +all_icons := $(icons) + +java_class := $(patsubst $(src)/%.java, $(build)/%.class, $(java_srcs)) +c_objs := $(patsubst $(src)/%.c, $(build)/%.o, $(c_srcs)) +# must not conflict, eg, foo.c.re and foo.c would go to the same thing +c_re_builds := $(patsubst $(src)/%.c.re, $(build)/%.c, $(c_re_srcs)) +c_rec_builds := $(patsubst $(src)/%.c.re_c, $(build)/%.c, $(c_rec_srcs)) +c_y_builds := $(patsubst $(src)/%.y, $(build)/%.c, $(y_srcs)) +# together .re/.re_c/.y +c_other_objs := $(patsubst $(build)/%.c, $(build)/%.o, $(c_re_builds) \ +$(c_rec_builds) $(c_y_builds)) +test_c_objs := $(patsubst $(test)/%.c, $(build)/$(test)/%.o, $(c_tests)) +html_docs := $(patsubst $(src)/%.c, $(doc)/%.html, $(c_srcs)) + +cdoc := cdoc +re2c := re2c +mkdir := mkdir -p +cat := cat +zip := zip +bison := bison +#lemon := lemon + +CC := clang #gcc +CF := -Wall -Wextra -pedantic -Weverything -Wno-comma -Wno-logical-op-parentheses \ +-Wno-parentheses -Wno-poison-system-directories -Wno-documentation-unknown-command \ +-Wno-shift-op-parentheses \ +-O3 -ffast-math -funroll-loops \ +-ansi # -std=c99 -mwindows +OF := -O3 # -framework OpenGL -framework GLUT or -lglut -lGLEW + +# Jakob Borg and Eldar Abusalimov +# $(ARGS) is all the extra arguments; $(BRGS) is_all_the_extra_arguments +EMPTY := +SPACE := $(EMPTY) $(EMPTY) +ifeq (backup, $(firstword $(MAKECMDGOALS))) + ARGS := $(wordlist 2,$(words $(MAKECMDGOALS)),$(MAKECMDGOALS)) + BRGS := $(subst $(SPACE),_,$(ARGS)) + ifneq (,$(BRGS)) + BRGS := -$(BRGS) + endif + $(eval $(ARGS):;@:) +endif + +###### +# compiles the programme by default + +default: $(bin)/$(project) + # . . . success; executable is in $(bin)/$(project) + +docs: $(html_docs) + +# linking +$(bin)/$(project): $(c_objs) $(c_other_objs) $(test_c_objs) + # linking rule + @$(mkdir) $(bin) + $(CC) $(OF) -o $@ $^ + +# compiling +#$(lemon)/$(bin)/$(lem): $(lemon)/$(src)/lemon.c +# # compiling lemon +# @$(mkdir) $(lemon)/$(bin) +# $(CC) $(CF) -o $@ $< + +$(c_objs): $(build)/%.o: $(src)/%.c $(all_h) + # c_objs rule + @$(mkdir) $(build) + $(CC) $(CF) -c -o $@ $< + +$(c_other_objs): $(build)/%.o: $(build)/%.c $(all_h) + # c_other_objs rule + $(CC) $(CF) -c -o $@ $< + +$(test_c_objs): $(build)/$(test)/%.o: $(test)/%.c $(all_h) + # test_c_objs rule + @$(mkdir) $(build) + @$(mkdir) $(build)/$(test) + $(CC) $(CF) -c -o $@ $< + +$(c_re_builds): $(build)/%: $(src)/%.re + # *.re build rule + @$(mkdir) $(build) + $(re2c) -W -T -o $@ $< + +$(c_rec_builds): $(build)/%: $(src)/%.re_c + # *.re_c (conditions) build rule + @$(mkdir) $(build) + $(re2c) -W -T -c -o $@ $< + +$(c_y_builds): $(build)/%.c: $(src)/%.y # $(lemon)/$(bin)/$(lem) + # .y rule + @$(mkdir) $(build) + $(bison) -o $@ $< + +$(html_docs): $(doc)/%.html: $(src)/%.c $(src)/%.h + # docs rule + @$(mkdir) $(doc) + cat $^ | $(cdoc) > $@ + +###### +# phoney targets + +.PHONY: setup clean backup icon install uninstall test docs -.PHONY: clean clean: - -rm $(OBJS) + -rm -f $(c_objs) $(test_c_objs) $(c_other_objs) $(c_re_builds) \ +$(c_rec_builds) $(html_docs) + -rm -rf $(bin)/$(test) + +backup: + @$(mkdir) $(backup) + $(zip) $(backup)/$(project)-`date +%Y-%m-%dT%H%M%S`$(BRGS).zip \ +readme.txt Makefile $(all_h) $(all_srcs) $(all_tests) $(all_icons) + +icon: default + # . . . setting icon on a Mac. + cp $(media)/$(icon) $(bin)/$(icon) + -sips --addIcon $(bin)/$(icon) + -DeRez -only icns $(bin)/$(icon) > $(bin)/$(RSRC) + -Rez -append $(bin)/$(RSRC) -o $(bin)/$(project) + -SetFile -a C $(bin)/$(project) + +setup: default icon + @$(mkdir) $(bin)/$(install) + cp $(bin)/$(project) readme.txt $(bin)/$(install) + rm -f $(bin)/$(install)-MacOSX.dmg + # or rm -f $(BDIR)/$(INST)-Win32.zip + hdiutil create $(bin)/$(install)-MacOSX.dmg -volname "$(project)" -srcfolder $(bin)/$(install) + # or zip $(BDIR)/$(INST)-Win32.zip -r $(BDIR)/$(INST) + rm -R $(bin)/$(install) + +install: default + @$(mkdir) -p $(DESTDIR)$(PREFIX)/bin + cp $(bin)/$(project) $(DESTDIR)$(PREFIX)/bin/$(project) + +uninstall: + rm -f $(DESTDIR)$(PREFIX)/bin/$(project) + +docs: $(html_docs) diff --git a/badass.addr b/badass.addr deleted file mode 100644 index 4e6cba4..0000000 --- a/badass.addr +++ /dev/null @@ -1,2 +0,0 @@ -142.157.12.162 -1355444274 diff --git a/badass.c b/badass.c deleted file mode 100644 index 452c763..0000000 --- a/badass.c +++ /dev/null @@ -1,217 +0,0 @@ -/* Copyright 2007, 2008 Neil Edelman, distributed under the terms of the - GNU General Public License, see copying.txt */ - -/* this is a mess -Neil */ - -#include /* getenv(), atoi() */ -#include /* printf(), FILE, f*() */ -#include /* strstr() */ -#include /* time() */ - -/* constants */ -static const char *programme = "badass"; -static const char *year = "2007, 2008"; -static const int versionMajor = 1; -static const int versionMinor = 0; - -#define VOTE_FILE "badass.vote" -#define DESC_FILE "badass.desc" -#define ADDR_FILE "badass.addr" -#define HTML_FILE "badass.html" -#define VALID_REFERER "http://neil.chaosnet.org/" -#define TIME 256 - -static struct Vote { - unsigned int vote; - char *name; - char token; -} votes[] = { - { 0, "astronaut", 'a' }, - { 0, "commando", 'c' }, - { 0, "hacker", 'h' }, - { 0, "ninja", 'n' }, - { 0, "pilot", 'p' }, - { 0, "pirate", 'i' }, - { 0, "robot", 'r' }, - { 0, "samurai", 'm' }, - { 0, "scientist", 's' }, - { 0, "spy", 'y' } -}; -const static int votes_size = sizeof(votes) / sizeof(struct Vote); - -char *extract_vote(char *vote); -char *votes_read(void); -char *votes_write(void); -char *votes_inc(char vote); -char *votes_html(void); - -char *extract_vote(char *vote) { - FILE *fp; - char *env, *var; - - /* at least it will zero */ - *vote = 0; - /* check env vars */ - if(!(env = getenv("REQUEST_METHOD")) || strcmp(env, "GET")) return "Invalid request method."; - if(!(env = getenv("HTTP_REFERER")) || strncmp(env, VALID_REFERER, strlen(VALID_REFERER))) return "Invalid referer."; - if(!(env = getenv("QUERY_STRING")) || !(var = strstr(env, "vote="))) return "Invalid query string."; - /* if the addr matches the ADDR do'n't vote */ - if((fp = fopen(ADDR_FILE, "r"))) { - /* 256.256.256.256 - 18446744073709551615 */ - char ip[17], tm[21], *rlf; - - fgets(ip, sizeof(ip), fp); - if((rlf = strrchr(ip, '\n'))) *rlf = 0; /* delete lf at the end */ - if(!(env = getenv("REMOTE_ADDR"))) return "REMOTE_ADDR not set."; - if(!strcmp(env, ip)) { - fgets(tm, sizeof(tm), fp); - if(atoi(tm) + TIME > time(0)) return "This remote address has voted recenty."; - } - fclose(fp); - } - /* make up the new addr */ - if((fp = fopen(ADDR_FILE, "w"))) { - time_t t; - - fprintf(fp, "%.16s\n", getenv("REMOTE_ADDR")); - /* attempt to insert the time */ - t = time(0); - if(t == (time_t)-1) fprintf(fp, "%d\n", 0); - else fprintf(fp, "%d\n", (int)t); - fclose(fp); - } - /* though the gautlet */ - *vote = var[strlen("vote=")]; - return 0; -} - -char *votes_read(void) { - struct Vote *votep; - FILE *fp; - char line[81], *ch, *val; - - /* read in the votes */ - if(!(fp = fopen(VOTE_FILE, "r"))) { - /* it's (probably) the first time */ - if(!(fp = fopen(VOTE_FILE, "w"))) return "Secret archive is'n't opening."; - fclose(fp); - return 0; - } - while(fgets(line, sizeof(line), fp)) { - /* go to the first solid character in the line */ - for(ch = line; *ch && (*ch <= ' ' || *ch > '~'); ch++); - /* search for a match within the token array */ - for(votep = votes; votep < votes + votes_size; votep++) if(*ch == votep->token) break; - if( votep >= votes + votes_size) continue; - /* go to the first number in the line */ - for(val = ch; *val && (*val < '0' || *val > '9'); val++); - /* convert the numerical string to a number and save it */ - votep->vote = atoi(val); - } - fclose(fp); - - return 0; -} - -char *votes_write(void) { - struct Vote *votep; - FILE *fp; - - /* write each token and value to the vote file */ - if(!(fp = fopen(VOTE_FILE, "w"))) return "Error storing your vote. Probably due to a file lock from another person voting at the same time."; - for(votep = votes; votep < votes + votes_size; votep++) { - fprintf(fp, "%c=%u\n", votep->token, votep->vote); - } - fclose(fp); - - return 0; -} - -char *votes_inc(char vote) { - struct Vote *votep; - - /* search for a match for the first letter of vote as a token */ - for(votep = votes; votep < votes + votes_size; votep++) if(vote == votep->token) break; - if( votep >= votes + votes_size) return "WTF, invalid vote?"; - if(votep->vote >= (unsigned short)(-1)) return "Couldn't cast vote due to a voting overflow."; - votep->vote++; - - return 0; -} - -char *votes_html(void) { - struct Vote *votep; - FILE *htf; - unsigned long max = 1; - unsigned char arg; - - /* rewrite the HTML file */ - if(!(htf = fopen(HTML_FILE, "w"))) return "Failed preparing the vote result page for updating."; - fprintf(htf, "\n\n"); - fprintf(htf, "\n\n"); - fprintf(htf, "\n"); - fprintf(htf, "Voting Results\n"); - fprintf(htf, "\n"); - fprintf(htf, "\n"); - fprintf(htf, "\n"); - fprintf(htf, "\n"); - fprintf(htf, "\n"); - fprintf(htf, "\n"); - fprintf(htf, "\n\n"); - fprintf(htf, "\n"); - fprintf(htf, "

Which of these professions is the most badass?

"); - fprintf(htf, "

\nCurrent results:\n

\n\n"); - /* write out each name and vote */ - for(votep = votes; votep < votes + votes_size; votep++) if(max < votep->vote) max = votep->vote; - for(votep = votes; votep < votes + votes_size; votep++) { - arg = ((float)255 * votep->vote) / max; - fprintf(htf, "

\"%u\" ", arg, arg); - fprintf(htf, "%s: %u vote%c

", votep->name, votep->vote, (votep->vote == 1) ? ' ' : 's'); - } - fprintf(htf, "

Go back to http://neil.chaosnet.org/.

\n"); - fprintf(htf, "\n\n"); - fprintf(htf, "\n"); - fclose(htf); - - return 0; -} - -int main(int argc, char **argv) { - char vote, *error = 0; - - if((error = votes_read()) || - (error = extract_vote(&vote)) || - (error = votes_inc(vote)) || - (error = votes_write()) || - (error = votes_html())) { - printf("Content-Type: text/html; encoding=us-ascii\n\n"); - printf("\n\n"); - printf("\n\n"); - printf("\n"); - printf("Voting Error\n"); - printf("\n"); - printf("\n"); - printf("\n"); - printf("\n"); - printf("\n"); - printf("\n"); - printf("\n\n"); - printf("\n"); - printf("

\n%s\n

\n\n", error); - printf("

Version %d.%d.

\n\n", versionMajor, versionMinor); - printf("

%s Copyright %s Neil Edelman\n", programme, year); - printf("This program comes with ABSOLUTELY NO WARRANTY.\n"); - printf("This is free software, and you are welcome to redistribute it\n"); - printf("under certain conditions; see copying.txt.

\n\n"); - printf("

\nGo back to root.\n

\n"); - printf("\n\n"); - printf("\n"); - - return EXIT_FAILURE; - } - /* http-header directing users */ - printf("Location: %s\n\n", HTML_FILE); - printf("Go to the results.\n\n", HTML_FILE); - - return 0; -} diff --git a/badass.html b/badass.html deleted file mode 100644 index a697f6a..0000000 --- a/badass.html +++ /dev/null @@ -1,23 +0,0 @@ - - - - - -Voting Results - - - - - - - - - -

Which of these professions is the most badass?

-Current results: -

- -

97 astronaut: 23 votes

76 commando: 18 votes

102 hacker: 24 votes

255 ninja: 60 votes

119 pilot: 28 votes

80 pirate: 19 votes

63 robot: 15 votes

34 samurai: 8 votes

89 scientist: 21 votes

72 spy: 17 votes

Go back to http://neil.chaosnet.org/.

- - - diff --git a/badass.vote b/badass.vote deleted file mode 100644 index b5a4f69..0000000 --- a/badass.vote +++ /dev/null @@ -1,10 +0,0 @@ -a=23 -c=18 -h=24 -n=60 -p=28 -i=19 -r=15 -m=8 -s=21 -y=17 diff --git a/copying.txt b/copying.txt deleted file mode 100644 index ae9f5be..0000000 --- a/copying.txt +++ /dev/null @@ -1,15 +0,0 @@ -Copyright (C) 2007, 2008 Neil Edelman - -badass is free software: you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation, either version 3 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with badass (see gnu.txt.) If not, see -. diff --git a/gpl.txt b/gpl.txt deleted file mode 100644 index bc08fe2..0000000 --- a/gpl.txt +++ /dev/null @@ -1,619 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. We, the Free Software Foundation, use the -GNU General Public License for most of our software; it applies also to -any other work released this way by its authors. You can apply it to -your programs, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -them if you wish), that you receive source code or can get it if you -want it, that you can change the software or use pieces of it in new -free programs, and that you know you can do these things. - - To protect your rights, we need to prevent others from denying you -these rights or asking you to surrender the rights. Therefore, you have -certain responsibilities if you distribute copies of the software, or if -you modify it: responsibilities to respect the freedom of others. - - For example, if you distribute copies of such a program, whether -gratis or for a fee, you must pass on to the recipients the same -freedoms that you received. You must make sure that they, too, receive -or can get the source code. And you must show them these terms so they -know their rights. - - Developers that use the GNU GPL protect your rights with two steps: -(1) assert copyright on the software, and (2) offer you this License -giving you legal permission to copy, distribute and/or modify it. - - For the developers' and authors' protection, the GPL clearly explains -that there is no warranty for this free software. For both users' and -authors' sake, the GPL requires that modified versions be marked as -changed, so that their problems will not be attributed erroneously to -authors of previous versions. - - Some devices are designed to deny users access to install or run -modified versions of the software inside them, although the manufacturer -can do so. This is fundamentally incompatible with the aim of -protecting users' freedom to change the software. The systematic -pattern of such abuse occurs in the area of products for individuals to -use, which is precisely where it is most unacceptable. 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Interpretation of Sections 15 and 16. - - If the disclaimer of warranty and limitation of liability provided -above cannot be given local legal effect according to their terms, -reviewing courts shall apply local law that most closely approximates -an absolute waiver of all civil liability in connection with the -Program, unless a warranty or assumption of liability accompanies a -copy of the Program in return for a fee. diff --git a/readme.md b/readme.md new file mode 100644 index 0000000..0727423 --- /dev/null +++ b/readme.md @@ -0,0 +1 @@ +These are hard-coded CGI programmes for simple voting. diff --git a/readme.txt b/readme.txt deleted file mode 100644 index 313a1ed..0000000 --- a/readme.txt +++ /dev/null @@ -1,7 +0,0 @@ -Copyright (C) 2007, 2008 Neil Edelman, see copying.txt. -neil dot edelman each mail dot mcgill dot ca - -Version 1.0. - -Usage: -This is a hard-coded CGI programme for simple voting. diff --git a/src/badass.h b/src/badass.h new file mode 100644 index 0000000..eb4dedc --- /dev/null +++ b/src/badass.h @@ -0,0 +1,29 @@ +#define VOTE_FILE "badass.vote" +#define ADDR_FILE "badass.addr" +#define HTML_FILE "badass.html" +#define VALID_REFERER "http://neil.chaosnet.org/" + +/* #define VOTES(X) \ + X('a', "astronaut"), \ + X('c', "commando"), \ + X('h', "hacker"), \ + X('n', "ninja"), \ + X('p', "pilot"), \ + X('i', "pirate"), \ + X('r', "robot"), \ + X('m', "samurai"), \ + X('s', "scientist"), \ + X('y', "spy") */ + +static struct vote votes[] = { + { "astronaut", 0, 'a' }, + { "commando", 0, 'c' }, + { "hacker", 0, 'h' }, + { "ninja", 0, 'n' }, + { "pilot", 0, 'p' }, + { "pirate", 0, 'i' }, + { "robot", 0, 'r' }, + { "samurai", 0, 'm' }, + { "scientist", 0, 's' }, + { "spy", 0, 'y' } +}; diff --git a/src/movie.h b/src/movie.h new file mode 100644 index 0000000..9d73937 --- /dev/null +++ b/src/movie.h @@ -0,0 +1,15 @@ +#define VOTE_FILE "movie.vote" +#define ADDR_FILE "movie.addr" +#define HTML_FILE "movie.html" +#define VALID_REFERER "http://neil.chaosnet.org/multiverse/" + +/*#define VOTES(X) \ + X('a', "A"), \ + X('b', "B"), \ + X('c', "C")*/ + +static struct vote votes[] = { + { "A", 0, 'a' }, + { "B", 0, 'b' }, + { "C", 0, 'c' } +}; diff --git a/src/vote.c b/src/vote.c new file mode 100644 index 0000000..6323437 --- /dev/null +++ b/src/vote.c @@ -0,0 +1,200 @@ +/* @license 2007 Neil Edelman, distributed under the terms of the + [GNU General Public License 3](https://opensource.org/licenses/GPL-3.0). + + @subtitle Vote + + These are hard-coded CGI programmes for simple voting. */ + +#include /* getenv(), atoi() */ +#include /* printf(), FILE, f*() */ +#include /* strstr() */ +#include /* time() */ + +static struct vote { + const char *name; + unsigned vote; + const char token; +}; + +#define TIME 256 +#if 1 +#include "badass.h" +#else +#include "movie.h" +#endif + +/* `votes` defined in header. */ +static const size_t votes_size = sizeof votes / sizeof *votes; + +static char *extract_vote(char *const vote) { + FILE *fp; + char *env, *var; + /* at least it will zero */ + *vote = 0; + /* check env vars */ + if(!(env = getenv("REQUEST_METHOD")) || strcmp(env, "GET")) + return "Invalid request method."; + if(!(env = getenv("HTTP_REFERER")) + || strncmp(env, VALID_REFERER, strlen(VALID_REFERER))) + return "Invalid referer."; + if(!(env = getenv("QUERY_STRING")) || !(var = strstr(env, "vote="))) + return "Invalid query string."; + /* if the addr matches the ADDR do'n't vote */ + if((fp = fopen(ADDR_FILE, "r"))) { + /* 256.256.256.256 - 18446744073709551615 */ + char ip[17], tm[21], *rlf; + fgets(ip, sizeof ip, fp); + if((rlf = strrchr(ip, '\n'))) *rlf = 0; /* delete lf at the end */ + if(!(env = getenv("REMOTE_ADDR"))) return "REMOTE_ADDR not set."; + if(!strcmp(env, ip)) { + fgets(tm, sizeof(tm), fp); + if(atoi(tm) + TIME > time(0)) + return "This remote address has voted recenty."; + } + fclose(fp); + } + /* make up the new addr */ + if((fp = fopen(ADDR_FILE, "w"))) { + time_t t; + fprintf(fp, "%.16s\n", getenv("REMOTE_ADDR")); + /* attempt to insert the time */ + t = time(0); + if(t == (time_t)-1) fprintf(fp, "%d\n", 0); + else fprintf(fp, "%d\n", (int)t); + fclose(fp); + } + /* though the gauntlet */ + *vote = var[strlen("vote=")]; + return 0; +} + +static char *votes_read(void) { + struct vote *votep; + FILE *fp; + char line[81], *ch, *val; + /* read in the votes */ + if(!(fp = fopen(VOTE_FILE, "r"))) { + /* it's (probably) the first time */ + if(!(fp = fopen(VOTE_FILE, "w"))) + return "Secret archive is'n't opening."; + fclose(fp); + return 0; + } + while(fgets(line, sizeof(line), fp)) { + /* go to the first solid character in the line */ + for(ch = line; *ch && (*ch <= ' ' || *ch > '~'); ch++); + /* search for a match within the token array */ + for(votep = votes; votep < votes + votes_size; votep++) + if(*ch == votep->token) break; + if( votep >= votes + votes_size) continue; + /* go to the first number in the line */ + for(val = ch; *val && (*val < '0' || *val > '9'); val++); + /* convert the numerical string to a number and save it */ + votep->vote = (unsigned)atoi(val); /* This is lazy, use `strtol`. */ + } + fclose(fp); + return 0; +} + +static char *votes_write(void) { + struct vote *votep; + FILE *fp; + /* write each token and value to the vote file */ + if(!(fp = fopen(VOTE_FILE, "w"))) + return "Error storing your vote."; + for(votep = votes; votep < votes + votes_size; votep++) + fprintf(fp, "%c=%u\n", votep->token, votep->vote); + fclose(fp); + return 0; +} + +static char *votes_inc(char vote) { + struct vote *votep; + /* search for a match for the first letter of vote as a token */ + for(votep = votes; votep < votes + votes_size; votep++) + if(vote == votep->token) break; + if( votep >= votes + votes_size) return "Invalid vote?"; + if(votep->vote >= (unsigned short)(-1)) return "Voting overflow."; + votep->vote++; + return 0; +} + +static char *votes_html(void) { + struct vote *votep; + FILE *htf; + unsigned long max = 1; + unsigned char arg; + /* rewrite the HTML file */ + if(!(htf = fopen(HTML_FILE, "w"))) + return "Failed preparing the vote result page for updating."; + fprintf(htf, "\n\n" + "\n\n" + "\n" + "Voting Results\n" + "\n" + "\n" + "\n" + "\n" + "\n"); + fprintf(htf, "\n" + "\n\n" + "\n" + "

Which of these professions is the most badass?

" + "

\nCurrent results:\n

\n\n"); + /* write out each name and vote */ + for(votep = votes; votep < votes + votes_size; votep++) + if(max < votep->vote) max = votep->vote; + for(votep = votes; votep < votes + votes_size; votep++) { + arg = (unsigned char)((255.0 * votep->vote) / max); + fprintf(htf, "

", arg, arg); + fprintf(htf, "%s: %u vote%c

", + votep->name, votep->vote, (votep->vote == 1) ? ' ' : 's'); + } + fprintf(htf, "

Go back to " + "http://neil.chaosnet.org/.

\n"); + fprintf(htf, "\n\n"); + fprintf(htf, "\n"); + fclose(htf); + return 0; +} + +int main(void) { + char vote, *error = 0; + if((error = votes_read()) || + (error = extract_vote(&vote)) || + (error = votes_inc(vote)) || + (error = votes_write()) || + (error = votes_html())) { + fputs("Content-Type: text/html; encoding=us-ascii\n\n" + "\n\n" + "\n\n" + "\n" + "Voting Error\n" + "\n" + "\n" + "\n" + "\n", stdout); + printf("\n" + "\n" + "\n\n" + "\n" + "

\n%s\n

\n\n" + "

\nGo back to root.\n

\n" + "\n\n" + "\n", error); + return EXIT_FAILURE; + } + /* http-header directing users */ + fputs("Location: " HTML_FILE "\n\n" + "Go to the results.\n\n", stdout); + return EXIT_SUCCESS; +}