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.

#include "cmdtab.h"

extern void cmd_entryinfo();
extern void cmd_r8();
extern void cmd_r16();
extern void cmd_r32();
extern void cmd_w8();
extern void cmd_w16();
extern void cmd_w32();

extern void cmd_memdump_human();

const struct cmdtab cmdtab[] = {
	{"dump", cmd_memdump_human},
	{"entry", cmd_entryinfo},
	{"r8", cmd_r8},
	{"r16", cmd_r16},
	{"r32", cmd_r32},
	{"w8", cmd_w8},
	{"w16", cmd_w16},
	{"w32", cmd_w32},
	{0, 0}
};