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.

CC=	arm-elf-gcc
OBJCOPY=arm-elf-objcopy

all:	payload.o payload.bin embed.c

.SUFFIXES: .o .bin

.o.bin:
	${OBJCOPY} -O binary $< $@

mkembed:	mkembed.c
	gcc -O2 -o $@ $@.c

embed.c:	payload.bin mkembed
	./mkembed payload.bin $@

clean:
	rm -f *.o *errs *core *.bin mkembed embed.c

FRC: