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|
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# since we look at functions below, remove all functions now
funcs=$(compgen -A function)
if [ -n "$funcs" ]; then
unset -f $funcs
fi
a()
{
x=$((x - 1))
return 5
}
b()
{
x=$((x - 1))
a
echo a returns $?
return 4
}
c()
{
x=$((x - 1))
b
echo b returns $?
return 3
}
d()
{
x=$((x - 1))
c
echo c returns $?
return 2
}
e()
{
d
echo d returns $?
echo in e
x=$((x - 1))
return $x
}
f()
{
e
echo e returned $?
echo x is $x
return 0
}
x=30
f
# make sure unsetting a local variable preserves the `local' attribute
f1()
{
local zz
zz=abcde
echo $zz
unset zz
zz=defghi
echo $zz
}
zz=ZZ
echo $zz
f1
echo $zz
unset -f f1
f1()
{
return 5
}
( f1 )
echo $?
unset -f f1
f1()
{
sleep 5
return 5
}
f1 &
wait
echo $?
unset -f f1
f1()
{
echo $AVAR
printenv AVAR
}
AVAR=AVAR
echo $AVAR
f1
AVAR=foo f1
echo $AVAR
unset -f f1
# make sure subshells can do a `return' if we're executing in a function
f1()
{
( return 5 )
status=$?
echo $status
return $status
}
f1
echo $?
declare -F f1 # should print just the name
declare -f f1 # should print the definition, too
# no functions should be exported, right?
declare -xF
declare -xf
# FUNCNAME tests
func2()
{
echo FUNCNAME = $FUNCNAME
}
func()
{
echo before: FUNCNAME = $FUNCNAME
func2
echo after: FUNCNAME = $FUNCNAME
}
echo before: try to assign to FUNCNAME
FUNCNAME=7
echo outside: FUNCNAME = $FUNCNAME
func
echo outside2: FUNCNAME = $FUNCNAME
# test exported functions (and cached exportstr)
zf()
{
echo this is zf
}
export -f zf
${THIS_SH} -c 'type -t zf'
${THIS_SH} -c 'type zf'
${THIS_SH} ./func1.sub
# tests for functions whose bodies are not group commands, with and without
# attached redirections
${THIS_SH} ./func2.sub
# test for some posix-specific function behavior
${THIS_SH} ./func3.sub
# FUNCNEST testing
${THIS_SH} ./func4.sub
unset -f myfunction
myfunction() {
echo "bad shell function redirection"
} >> /dev/null
myfunction
myfunction | cat
segv()
{
echo foo | return 5
}
segv
echo $?
exit 0
|
