read/write payloads via stdio

To allow binary save payload transmission:

- broadcaster reads the payload from stdin if the 2nd param is "-"
- listener passes the payload via stdin to all handlers

1 files changed, 4 insertions, 2 deletions

diff --git a/handler/hello b/handler/hello
index 92e1aa1..68ee5a4 100755
--- a/handler/hello
+++ b/handler/hello
@@ -4,6 +4,8 @@
 
 LOGFILE="./hello.log"
 
-echo "Someone called 'hello $1'!" >> "$LOGFILE"
-
+(   echo -n "Someone called 'hello "
+    cat
+    echo  "'!"
+) >> "$LOGFILE"