Merge branch 'master' from laptop

Conflicts:

	doc/ideas.txt
	pwnables/service/sshd.pwn/run

doc/ideas.txt

@@ -14,7 +14,8 @@ Ideas for puzzles
   * Broken startup scripts, when fixed award more points
   * Lots of remote exploits
 * "qemu -net socket" vpn thingy and then...
-* sfxrar packed with upx.  Change an instruction so it won't actually execute.
+* sfxrar packed with upx.  Change an instruction so it won't actually
+  execute.
 
 
 Capture the Packet

packages/mcp/src/puzzler.cgi.c

@@ -49,7 +49,7 @@ main(int argc, char *argv[])
     char *p;
 
     for (p = category; *p; p += 1) {
-      if (! isalnum(*p)) {
+      if ((! isalnum(*p)) && ('-' != *p)) {
         cgi_page("Invalid category", "");
       }
     }

packages/mcp/www/ctf.css

@@ -162,4 +162,6 @@ table.pollster thead {
     font-weight: bold;
 }
 
-
+table.scoreboard {
+    height: 400px;
+}

packages/octopus/solution.sh

@@ -1,14 +1,15 @@
 #! /bin/sh
 
 port=8888
+host=10.0.0.10
 
 blooper=$(tempfile)
 trap "rm $blooper" 0
 
-echo foo | socat -t 0.01 STDIO UDP:127.0.0.1:8888 | tail -n +4 > $blooper
+echo foo | socat -t 0.01 STDIO UDP:$host:$port | tail -n +4 > $blooper
 
 for i in $(seq 8); do
-    result=$(socat -t 0.01 STDIO UDP:127.0.0.1:$port < $blooper | awk -F': ' '(NF > 1) {print $2; exit;}')
+    result=$(socat -t 0.01 STDIO UDP:$host:$port < $blooper | awk -F': ' '(NF > 1) {print $2; exit;}')
     port=$(echo "ibase=8; $result" | bc)
     echo $port
 done

packages/pwnables/service/eth0.pwn/run

@@ -1,8 +1,10 @@
 #! /bin/sh
 
-if ! [ -d /opt/mcp ]; then
+if [ -d /opt/mcp ]; then
-    hostname pwnables
+    sv d .
-    ifconfig eth0 10.0.0.10 netmask 255.0.0.0
+    exit
 fi
 
+hostname pwnables
+ifconfig eth0 10.0.0.10 netmask 255.0.0.0
 exec inotifyd true $(pwd):x

pwnables/service/sshd.pwn/run

@@ -1,8 +1,10 @@
 #! /bin/sh
 
 exec 2>&1
+
 if [ -d /opt/mcp ]; then
   sv d .
   exit
 fi
+
 exec dropbear -r ./rsa.key -E -F