Symbol: S_IREAD
sys/kern/sys_memfd.c
307
st->st_mode = S_IREAD;
usr.bin/error/touch.c
818
if ((statbuf.st_mode & S_IREAD) == 0)
usr.sbin/bootp/bootpd/bootpd.c
1120
if ((stat(path, &st) == 0) && (st.st_mode & (S_IREAD >> 6))) {