shf_open
shf = shf_open(name = evalstr(io->name, DOTILDE), O_RDONLY, 0,
if (!(shf = shf_open(tf->name, O_RDONLY, 0, 0))) {
kshdebug_shf = shf_open("/tmp/ksh-debug.log",
s->u.shf = shf_open(s->file, O_RDONLY, 0, SHF_MAPHI|SHF_CLEXEC);
shf = shf_open(name, O_RDONLY, 0, SHF_MAPHI|SHF_CLEXEC);
struct shf *shf_open ARGS((const char *name, int oflags, int mode,