Symbol: sys_ftruncate
sys/kern/init_sysent.c
218
{ AS(ftruncate_args), 4, (sy_call_t *)sys_ftruncate }, /* 201 = ftruncate */
sys/sys/sysproto.h
1596
int sys_ftruncate (struct sysmsg *sysmsg, const struct ftruncate_args *);