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.

/*
 * Definitions of global variables for the tiffs IVA program.
 */

#include <sys/types.h>
#include "types.h"
#include "struct.h"

char *imgfile;
off_t imgfile_offset;
u32 eraseblk_size;
int total_blocks;
u32 total_ffs_size;
int index_blk_num = -1, root_inode;
int inode_limit;
int verbose, verbose2;
int old_16bit_location;

u8 *image, *inode_block;
struct inode_info **inode_info;