add fizzbuzz

packages/fizzbuzz/fizzbuzz-client.sh

@@ -0,0 +1,13 @@
+#! /bin/sh
+
+for i in $(seq 100); do
+    if [ $(expr $i % 15) = 0 ]; then
+        echo 'FizzBuzz'
+    elif [ $(expr $i % 3) = 0 ]; then
+        echo 'Fizz'
+    elif [ $(expr $i % 5) = 0 ]; then
+        echo 'Buzz'
+    else
+        echo $i
+    fi
+done

packages/fizzbuzz/fizzbuzz.mk

@@ -0,0 +1,29 @@
+FIZZBUZZ_PKGDIR = $(TARGET)/fizzbuzz
+FIZZBUZZ_BUILDDIR = $(BUILD)/fizzbuzz
+
+$(FIZZBUZZ_BUILDDIR)/token.enc: packages/fizzbuzz/tokens.txt
+$(FIZZBUZZ_BUILDDIR)/token.enc: packages/fizzbuzz/fizzbuzz-client.sh
+$(FIZZBUZZ_BUILDDIR)/token.enc: $(FIZZBUZZ_BUILDDIR)/fizzbuzz-native
+	packages/fizzbuzz/fizzbuzz-client.sh | $(FIZZBUZZ_BUILDDIR)/fizzbuzz-native 3< packages/fizzbuzz/tokens.txt > $@
+
+$(FIZZBUZZ_BUILDDIR)/fizzbuzz-native: packages/fizzbuzz/src/fizzbuzz.c
+	@ mkdir -p $(@D)
+	cc -o $@ $<
+
+fizzbuzz-install: fizzbuzz-build
+	mkdir -p $(FIZZBUZZ_PKGDIR)/bin/
+
+	$(call COPYTREE, packages/fizzbuzz/service, $(FIZZBUZZ_PKGDIR)/service)
+
+	cp packages/fizzbuzz/tokens.txt $(FIZZBUZZ_PKGDIR)/
+	cp $(FIZZBUZZ_BUILDDIR)/token.enc $(FIZZBUZZ_PKGDIR)/
+	cp packages/fizzbuzz/src/fizzbuzz $(FIZZBUZZ_PKGDIR)/bin/
+
+fizzbuzz-clean:
+	rm -rf $(FIZZBUZZ_PKGDIR) $(FIZZBUZZ_BUILDDIR)
+	$(MAKE) -C packages/fizzbuzz/src clean
+
+fizzbuzz-build: $(FIZZBUZZ_BUILDDIR)/token.enc
+	$(MAKE) -C packages/fizzbuzz/src build
+
+PACKAGES += fizzbuzz

packages/fizzbuzz/src/Makefile

@@ -0,0 +1,11 @@
+CFLAGS = -Wall -Werror
+TARGETS = fizzbuzz
+
+all: build
+build: $(TARGETS)
+
+install: $(TARGETS)
+	install -m 0755 $(TARGETS) $(DESTDIR)/bin
+
+clean:
+	rm -f *.o $(TARGETS)

packages/fizzbuzz/src/fizzbuzz.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 /*
  * How this works:

packages/fizzbuzz/tokens.txt

@@ -0,0 +1 @@
+net:xuhen-fizuv-syvex

packages/mcp/service/pointsd/run

@@ -4,10 +4,11 @@ exec 2>&1
 
 install -d /var/lib/ctf
 
-# Create CTF user
+# Create CTF and nobody users
 touch /etc/group /etc/passwd
-addgroup -g 56634 nogroup || true
+addgroup -g 65534 nogroup || true
 adduser -D -S -h /var/lib/ctf -H ctf || true
+adduser -D -g nogroup -u 65534 -h /tmp -H nobody || true
 
 # Set up base directories
 NEWDIR=/var/lib/ctf/points.new