$ for t in t2_exit77 t2_readtext t2_readfile t2_readanon t2_wrapfile t2_wrapanon; do sh -c "/tmp/$t; echo $t rc=$?"; done
t2_exit77 rc=77
t2_readtext rc=66
t2_readfile rc=66
t2_readanon rc=65
t2_wrapfile rc=139
Segmentation fault
t2_wrapanon rc=65