1*3e3895bfSKrzysztof Piecuch# $FreeBSD: head/bin/sh/tests/expansion/cmdsubst24.0 317347 2017-04-23 21:58:17Z jilles $ 2*3e3895bfSKrzysztof Piecuch# POSIX leaves the effect of NUL bytes in command substitution output 3*3e3895bfSKrzysztof Piecuch# unspecified but we have always discarded them. 4*3e3895bfSKrzysztof Piecuch 5*3e3895bfSKrzysztof Piecuchfailures=0 6*3e3895bfSKrzysztof Piecuch 7*3e3895bfSKrzysztof Piecuchcheck() { 8*3e3895bfSKrzysztof Piecuch if [ "$2" != "$3" ]; then 9*3e3895bfSKrzysztof Piecuch printf "Failed at line %s: got \"%s\" expected \"%s\"\n" "$1" "$2" "$3" 10*3e3895bfSKrzysztof Piecuch : $((failures += 1)) 11*3e3895bfSKrzysztof Piecuch fi 12*3e3895bfSKrzysztof Piecuch} 13*3e3895bfSKrzysztof Piecuch 14*3e3895bfSKrzysztof Piecuchfmt='\0a\0 \0b\0c d\0' 15*3e3895bfSKrzysztof Piecuchassign_builtin=$(printf "$fmt") 16*3e3895bfSKrzysztof Piecuchcheck "$LINENO" "$assign_builtin" "a bc d" 17*3e3895bfSKrzysztof Piecuchassign_pipeline=$(printf "$fmt" | cat) 18*3e3895bfSKrzysztof Piecuchcheck "$LINENO" "$assign_pipeline" "a bc d" 19*3e3895bfSKrzysztof Piecuchset -- $(printf "$fmt") $(printf "$fmt" | cat) "$(printf "$fmt")" "$(printf "$fmt" | cat)" 20*3e3895bfSKrzysztof PiecuchIFS=@ 21*3e3895bfSKrzysztof Piecuchsplits="$*" 22*3e3895bfSKrzysztof Piecuchcheck "$LINENO" "$splits" "a@bc@d@a@bc@d@a bc d@a bc d" 23*3e3895bfSKrzysztof Piecuch 24*3e3895bfSKrzysztof Piecuch[ "$failures" = 0 ] 25