fcup-smsend[mult]: fix buglet in K&R C NULL pointer passing The only 100% safe way to pass a NULL pointer as a function argument in K&R C is to cast 0 to a pointer type; failing to do so may cause mysterious bugs (invalid stack frames or garbage in argument registers) on 64-bit machines. This issue has already been fixed in most of FC host tools, but I just found some missed spots: passing of NULL UDH to PDU encoding functions in fcup-smsend[mult] in the case of single (not concatenated) SMS.

#!/bin/sh

if [ $# -lt 1 -o $# -gt 2 ]
then
	echo "usage: $0 pwt_melody_file [volume]" 1>&2
	exit 1
fi

tmpfile=/tmp/fc-test-melody.bz

if [ -n "$2" ]
then
	volume="$2"
else
	volume=64
fi

set -ex

fc-pwt-comp "$1" $tmpfile
fc-fsio upload-file $tmpfile /buz/test.bz
fc-shell 'at@buz="/buz/test.bz"'",$volume"