######################################################################## # # # This software is part of the ast package # # Copyright (c) 1982-2010 AT&T Intellectual Property # # and is licensed under the # # Common Public License, Version 1.0 # # by AT&T Intellectual Property # # # # A copy of the License is available at # # http://www.opensource.org/licenses/cpl1.0.txt # # (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) # # # # Information and Software Systems Research # # AT&T Research # # Florham Park NJ # # # # David Korn # # # ######################################################################## function err_exit { print -u2 -n "\t" print -u2 -r ${Command}[$1]: "${@:2}" let Errors+=1 } alias err_exit='err_exit $LINENO' integer Errors=0 Command=${0##*/} ulimit -c 0 tmp=$(mktemp -dt) || { err_exit mktemp -dt failed; exit 1; } trap "cd /; rm -rf $tmp" EXIT integer foo=33 bar=bye # check for global variables and $0 function foobar { case $1 in 1) print -r - "$foo" "$bar";; 2) print -r - "$0";; 3) typeset foo=foo integer bar=10 print -r - "$foo" "$bar";; 4) trap 'foo=36' EXIT typeset foo=20;; esac } function print { command print hi } if [[ $(print) != hi ]] then err_exit "command print not working inside print function" fi unset -f print if [[ $(foobar 1) != '33 bye' ]] then err_exit 'global variables not correct' fi if [[ $(foobar 2) != 'foobar' ]] then err_exit '$0 not correct' fi if [[ $(bar=foo foobar 1) != '33 foo' ]] then err_exit 'environment override not correct' fi if [[ $bar == foo ]] then err_exit 'scoping error' fi if [[ $(foobar 3) != 'foo 10' ]] then err_exit non-local variables fi foobar 4 if [[ $foo != 36 ]] then err_exit EXIT trap in wrong scope fi unset -f foobar || err_exit "cannot unset function foobar" typeset -f foobar>/dev/null && err_exit "typeset -f has incorrect exit status" function foobar { (return 0) } > $tmp/test1 { foobar if [ -r $tmp/test1 ] then rm -r $tmp/test1 else err_exit 'return within subshell inside function error' fi } abc() print hi if [[ $(abc) != hi ]] then err_exit 'abc() print hi not working' fi ( unset -f abc ) if [[ $(abc 2>/dev/null) != hi ]] then err_exit 'abc() print hi not working after subshell unset' fi ( function f { exit 1 } f err_exit 'exit from function not working' ) unset -f foo function foo { x=2 ( x=3 cd $tmp print bar ) if [[ $x != 2 ]] then err_exit 'value of x not restored after subshell inside function' fi } x=1 dir=$PWD if [[ $(foo) != bar ]] then err_exit 'cd inside nested subshell not working' fi if [[ $PWD != "$dir" ]] then err_exit 'cd inside nested subshell changes $PWD' fi fun() /bin/echo hello if [[ $(fun) != hello ]] then err_exit one line functions not working fi cat > $tmp/script <<-\! print -r -- "$1" ! chmod +x $tmp/script function passargs { $tmp/script "$@" } if [[ $(passargs one) != one ]] then err_exit 'passing args from functions to scripts not working' fi cat > $tmp/script <<-\! trap 'exit 0' EXIT function foo { /tmp > /dev/null 2>&1 } foo ! if ! $tmp/script then err_exit 'exit trap incorrectly triggered' fi if ! $SHELL -c $tmp/script then err_exit 'exit trap incorrectly triggered when invoked with -c' fi $SHELL -c "trap 'rm $tmp/script' EXIT" if [[ -f $tmp/script ]] then err_exit 'exit trap not triggered when invoked with -c' fi cat > $tmp/script <<- \EOF foobar() { return } shift foobar print -r -- "$1" EOF chmod +x $tmp/script if [[ $( $SHELL $tmp/script arg1 arg2) != arg2 ]] then err_exit 'arguments not restored by posix functions' fi function foo { print hello } ( function foo { print bar } if [[ $(foo) != bar ]] then err_exit 'function definitions inside subshells not working' fi ) if [[ $(foo) != hello ]] then err_exit 'function definitions inside subshells not restored' fi unset -f foo bar function bar { print "$y" } function foo { typeset x=3 y=$x bar } x=1 if [[ $(foo) != 3 ]] then err_exit 'variable assignment list not using parent scope' fi unset -f foobar cat > $tmp/foobar </dev/null) != foo ]] then err_exit 'autoload not working' fi unset -f foobar function foobar { typeset -r x=3 return 0 } ( foobar ) 2> /dev/null || err_exit "cannot unset readonly variable in function" if $SHELL -n 2> /dev/null <<-! abc() ! then err_exit 'abc() without a function body is not a syntax error' fi function winpath { usage='q pathname ...' typeset var format=s while getopts "$usage" var do case $var in q) format=q;; esac done print done } if [[ $( (winpath --man 2>/dev/null); print ok) != ok ]] then err_exit 'getopts --man in functions not working' fi if [[ $( (winpath -z 2>/dev/null); print ok) != ok ]] then err_exit 'getopts with bad option in functions not working' fi unset -f x function x { print "$@" } typeset -ft x if [[ $(x x=y 2>/dev/null) != x=y ]] then err_exit 'name=value pair args not passed to traced functions' fi function bad { false } trap 'val=false' ERR val=true bad if [[ $val != false ]] then err_exit 'set -e not working for functions' fi function bad { false return 0 } val=true bad if [[ $val != true ]] then err_exit 'set -e not disabled for functions' fi bad() { false return 0 } val=true bad if [[ $val != false ]] then err_exit 'set -e not inherited for posix functions' fi trap - ERR function myexport { nameref var=$1 if (( $# > 1 )) then export $1=$2 fi if (( $# > 2 )) then print $(myexport "$1" "$3" ) return fi typeset val val=$(export | grep "^$1=") print ${val#"$1="} } export dgk=base val=$(myexport dgk fun) if [[ $val != fun ]] then err_exit "export inside function not working -- expected 'fun', got '$val'" fi val=$(export | sed -e '/^dgk=/!d' -e 's/^dgk=//') if [[ $val != base ]] then err_exit "export not restored after function call -- expected 'base', got '$val'" fi val=$(myexport dgk fun fun2) if [[ $val != fun2 ]] then err_exit "export inside function not working with recursive function -- expected 'fun2', got '$val'" fi val=$(export | sed -e '/^dgk=/!d' -e 's/^dgk=//') if [[ $val != base ]] then err_exit "export not restored after recursive function call -- expected 'base', got '$val'" fi val=$(dgk=try3 myexport dgk) if [[ $val != try3 ]] then err_exit "name=value not added to export list with function call -- expected 'try3', got '$val'" fi val=$(export | sed -e '/^dgk=/!d' -e 's/^dgk=//') if [[ $val != base ]] then err_exit "export not restored name=value function call -- expected 'base', got '$val'" fi unset zzz val=$(myexport zzz fun) if [[ $val != fun ]] then err_exit "export inside function not working -- expected 'fun', got '$val'" fi val=$(export | sed -e '/^zzz=/!d' -e 's/^zzz=//') if [[ $val ]] then err_exit "unset varaible exported after function call -- expected '', got '$val'" fi unset zzz typeset -u zzz function foo { zzz=abc print $zzz } if [[ $(foo)$(foo) != ABCABC ]] then err_exit 'attributes on unset variables not saved/restored' fi function xpd { typeset i j=$1 for i do print i=$i j=$j [[ $i == a ]] && xpd b done } if [[ $(xpd a c) != $'i=a j=a\ni=b j=b\ni=c j=a' ]] then err_exit 'for loop function optimization error' fi typeset -A visited integer level=0 function closure { (( $# > 5 )) && return 1 ((level < 2)) && ((level++)) typeset tmp r=0 visited[$1]=1 for tmp in $level _$level do [[ ${visited[$tmp]} == 1 ]] && continue closure $tmp $* || r=1 done return $r } closure 0 || err_exit -u2 'for loop function optimization bug2' dir=$tmp/dir mkdir $dir cd $dir || { err_exit "cd $dir failed"; exit 1; } ( function a { print a } function b { print 1 a print 2 } > /dev/null typeset -ft a b PS4=X b ) > file 2>&1 [[ $( try chmod +x try cat > tst <<- EOF function ignore { ./try return 0 } trap "print error; exit 1" ERR ignore EOF if [[ $($SHELL < tst) == error ]] then err_exit 'ERR trap not cleared' fi FPATH=$dir print ': This does nothing' > foobar chmod +x foobar unset -f foobar { foobar; } 2>/dev/null got=$? exp=126 if [[ $got != $exp ]] then err_exit "function file without function definition processes wrong error -- expected '$exp', got '$got'" fi print 'set a b c' > dotscript [[ $(PATH=$PATH: $SHELL -c '. dotscript;print $#') == 3 ]] || err_exit 'positional parameters not preserved with . script without arguments' cd ~- || err_exit "cd back failed" function errcheck { trap 'print ERR; return 1' ERR false print ok } err=$(errcheck) [[ $err == ERR ]] || err_exit 'trap on ERR not working in a function' x="$( function foobar { print ok } typeset -f foobar )" eval "$x" || err_exit 'typeset -f generates syntax error' [[ $(foobar) != ok ]] && err_exit 'typeset -f not generating function' unset -f a b c a() { b b print ${.sh.fun} } b() { : ;} [[ $(a) == a ]] || err_exit '.sh.fun not set correctly in a function' print $'a(){\ndate\n}' | $SHELL 2> /dev/null || err_exit 'parser error in a(){;date;}' cat > $tmp/data1 << '++EOF' 1 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 2 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 3 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX 4 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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX # XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX f() { cat <<\M ++EOF cat $tmp/data1 >> $tmp/script printf 'M\n}\n\nf\n\n' >> $tmp/script $SHELL -c $tmp/script > $tmp/data2 cmp -s $tmp/data[12] || err_exit 'error with long functions' v=1 function f { typeset i for i in 0 1 do typeset v v=$i [[ $v == $i ]] || return 1 done } f || err_exit "typeset optimization bug" function f { print -r -- "$foo$bar" } function g { print -r -- $(bar=bam f) } unset foo bar [[ $(foo=hello g) == hellobam ]] || err_exit 'function exports not passed on' [[ $(bar=hello g) == bam ]] || err_exit 'function exports not overridden' unset -f foo function foo { typeset line=$1 set +n while [[ $line ]] do if [[ ! $varname ]] then varname=${line%% *} line=${line##"$varname"?( )} [[ $line ]] && continue else print ok return fi varname= done } [[ $(foo 'NUMBERED RECORDSIZE') == ok ]] || err_exit 'optimization error with undefined variable' unset x x=$( set -e integer count=0 function err_f { if ((count++==3)) then print failed else false fi } trap 'err_f' ERR false ) [[ $x == failed ]] && err_exit 'ERR trap executed multiple times' export environment typeset global function f { typeset i t local for i do case $i in [-+]*) set "$@" continue ;; local) local=f t=$(typeset +f $local) ;; global) global=f t=$(typeset +f $global) ;; environment) environment=f t=$(typeset +f $environment) ;; literal)t=$(typeset +f f) ;; positional) set -- f t=$(typeset +f $1) ;; esac [[ $t ]] || err_exit "typeset +f \$$i failed" done } f local global environment literal positional $SHELL -c ' print exit 0 > '$tmp'/script chmod +x '$tmp'/script unset var var=( ident=1 ) function fun { PATH='$tmp' script } fun ' || err_exit "compound variable cleanup before script exec failed" ( $SHELL << \++EOF++ function main { typeset key typeset -A entry entry[a]=( value=aaa ) } main ++EOF++ ) 2> /dev/null || err_exit 'function main fails' optind=$OPTIND sub() { ( OPTIND=1 while getopts :abc OPTION "$@" do print OPTIND=$OPTIND done ) } [[ $(sub -a) == OPTIND=2 ]] || err_exit 'OPTIND should be 2' [[ $(sub -a) == OPTIND=2 ]] || err_exit 'OPTIND should be 2 again' [[ $OPTIND == "$optind" ]] || err_exit 'OPTIND should be 1' function bar { [[ -o nounset ]] && err_exit 'nounset option should not be inherited' } function foo { set -o nounset bar } set +o nounset foo function red { integer -S d=0 printf 'red_one %d\n' d (( d++ )) return 0 } [[ ${ red } != 'red_one 0' ]] && err_exit 'expected red_one 0' [[ ${ red } != 'red_one 1' ]] && err_exit 'expected red_one 1' xyz=$0 function traceback { integer .level=.sh.level while((--.level>=0)) do ((.sh.level = .level)) [[ $xyz == "$0" ]] || err_exit "\$xyz=$xyz does not match $0 on level ${.level}" [[ ${.sh.lineno} == "$1" ]] || err_exit "\${.sh.lineno}=${.sh.lineno} does not match $1 on level ${.level}" done } function foo { typeset xyz=foo set -- $((LINENO+1)) bar $LINENO "$1" } function bar { typeset xyz=bar set -- $((LINENO+2)) trap 'traceback $LINENO' DEBUG : $LINENO "$1" } set -- $((LINENO+1)) foo $LINENO function .sh.fun.set { print -r -- "${.sh.value}" } function abc { : } def() { : } [[ $(abc) == abc ]] || err_exit '.sh.fun.set not capturing function name' [[ $(def) == def ]] || err_exit '.sh.fun.set not capturing name()' unset -f .sh.fun.set # tests for debug functions basefile=${.sh.file} integer baseline cat > $tmp/debug << \+++ : line 1 : line 3 +++ # Print one line in a call stack function _Dbg_print_frame { typeset -i pos=$1 typeset fn=$2 typeset filename="$3" typeset -i line=$4 typeset arg=$5 shift 5 if ((pos==0)) then [[ $filename == "$basefile" ]] || err_exit "filename for level 0 is $filename not $basename" [[ $arg == DEBUG ]] && ((baseline++)) [[ $line == "$baseline" ]] || err_exit "line number for level 0 is $line not $baseline" elif ((pos==1)) then [[ $filename == "$tmp/debug" ]] || err_exit "filename for level 1 is $filename not $tmp/debug" [[ $* == 'foo bar' ]] || err_exit "args are '$*', not 'foo bar'" [[ $line == $arg ]] || err_exit "line number for level 1 is $line not $arg" else err_exit "level should be 0 or 1 but is $pos" fi } function _Dbg_debug_trap_handler { integer .level=.sh.level .max=.sh.level-1 while((--.level>=0)) do ((.sh.level = .level)) _Dbg_print_frame "${.level}" "$0" "${.sh.file}" "${.sh.lineno}" "${.sh.command##* }" "$@" done } ((baseline=LINENO+2)) trap '_Dbg_debug_trap_handler' DEBUG . $tmp/debug foo bar trap '' DEBUG caller() { integer .level=.sh.level .max=.sh.level-1 while((--.level>=0)) do ((.sh.level = .level)) print -r -- "${.sh.lineno}" done } bar() { caller;} set -- $(bar) [[ $1 == $2 ]] && err_exit ".sh.inline optimization bug" ( $SHELL -c ' function foo { typeset x=$1;print $1;};z=();z=($(foo bar)) ') 2> /dev/null || err_exit 'using a function to set an array in a command sub fails' { got=$( s=$(ulimit -s) if [[ $s == +([[:digit:]]) ]] && (( s < 16384 )) then ulimit -s 16384 2>/dev/null fi $SHELL << \+++ f() { if (($1>1)) then x=$(f $(($1-1))) || exit 1 fi return 0 } f 257 && print ok +++ ) } 2>/dev/null [[ $got == ok ]] || err_exit 'cannot handle comsub depth > 256 in function' tmp1=$tmp/job.1 tmp2=$tmp/job.2 cat > $tmp1 << +++ #! $SHELL print \$\$ +++ chmod +x $tmp1 function foo { typeset pid $tmp1 > $tmp2 & pid=$! wait $! [[ $(< $tmp2) == $pid ]] || err_exit 'wrong pid for & job in function' } foo # make sure compiled functions work [[ $(tmp=$tmp $SHELL <<- \++++ cat > $tmp/functions <<- \EOF function bar { print foo } function foobar { bar } EOF ${SHCOMP:-${SHELL%/*}/shcomp} $tmp/functions > $tmp/foobar rm -f "$tmp/functions" chmod +x $tmp/foobar rm $tmp/!(dir|foobar) FPATH=$tmp PATH=$FPATH:$PATH foobar ++++ ) == foo ]] > /dev/null || err_exit 'functions compiled with shcomp not working' # test for functions in shell having side effects. unset -f foo foobar bar cd "$tmp" FPATH=$PWD PATH=$FPATH:$PATH cat > foo <<- \EOF function bar { print foobar } function foo { bar } EOF chmod +x foo : $(foo) [[ $(typeset +f) == *foo* ]] && err_exit 'function in subshell leaving side effect of function foo' unset -f foo bar : $(foo) [[ $(typeset +f) == *foo* ]] && err_exit 'function in subshell leaving side effects of function foo after reload' [[ $(typeset +f) == *bar* ]] && err_exit 'function in subshell leaving side effects of function bar after reload' unset -f foo typeset -A bar function foo { typeset -i bar[$1].x bar[$1].x=5 } foo sub [[ ${!bar[@]} == sub ]] || err_exit 'scoping problem with compound array variables' function A { trap "> /dev/null;print TRAP A" EXIT # (( stderr )) && print >&2 } function B { trap "> /dev/null;print TRAP B" EXIT A } x=$(B) [[ $x == $'TRAP A\nTRAP B' ]] || err_exit "trap from funtions in subshells fails got" $x exit $((Errors))