1# This tests a quality of implementation issue. 2# Shells are not required to reject executing binary files as shell scripts 3# but executing, for example, ELF files for a different architecture as 4# shell scripts may have annoying side effects. 5 6T=`mktemp -d "${TMPDIR:-/tmp}/sh-test.XXXXXXXX"` || exit 7trap 'rm -rf "${T}"' 0 8printf '\0' >"$T/testshellproc" 9chmod 755 "$T/testshellproc" 10if [ ! -s "$T/testshellproc" ]; then 11 printf "printf did not write a NUL character\n" >&2 12 exit 2 13fi 14PATH=$T:$PATH 15errout=`testshellproc 3>&2 2>&1 >&3 3>&-` 16r=$? 17[ "$r" = 126 ] && [ -n "$errout" ] 18