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82 lines
2.7 KiB
Bash
Executable File
82 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
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# Verify behavior of printenv.
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# Copyright (C) 2009-2012 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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. "${srcdir=.}/init.sh"; path_prepend_ ../src
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print_ver_ printenv
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# Without arguments, printenv behaves like env. Some shells provide
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# printenv as a builtin, so we must invoke it via "env".
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# But beware of $_, set by many shells to the last command run.
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# Also, filter out LD_PRELOAD, which is set when running under valgrind.
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env | grep -Ev '^(_|LD_PRELOAD=)' > exp || framework_failure_
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env -- printenv | grep -Ev '^(_|LD_PRELOAD=)' > out || fail=1
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compare exp out || fail=1
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# POSIX is clear that environ may, but need not be, sorted.
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# Environment variable values may contain newlines, which cannot be
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# observed by merely inspecting output from printenv.
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if env -- printenv | grep '^ENV_TEST' >/dev/null ; then
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skip_ "environment has potential interference from ENV_TEST*"
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fi
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# Printing a single variable's value.
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env -- printenv ENV_TEST > out
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test $? = 1 || fail=1
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test -s out && fail=1
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echo a > exp || framework_failure_
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ENV_TEST=a env -- printenv ENV_TEST > out || fail=1
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compare exp out || fail=1
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# Printing multiple variables. Order follows command line.
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ENV_TEST1=a ENV_TEST2=b env -- printenv ENV_TEST2 ENV_TEST1 ENV_TEST2 > out \
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|| fail=1
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ENV_TEST1=a ENV_TEST2=b env -- printenv ENV_TEST1 ENV_TEST2 >> out || fail=1
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cat <<EOF > exp || framework_failure_
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b
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a
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b
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a
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b
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EOF
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compare exp out || fail=1
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# Exit status reflects missing variable, but remaining arguments processed.
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ENV_TEST1=a env -- printenv ENV_TEST2 ENV_TEST1 > out
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test $? = 1 || fail=1
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ENV_TEST1=a env -- printenv ENV_TEST1 ENV_TEST2 >> out
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test $? = 1 || fail=1
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cat <<EOF > exp || framework_failure_
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a
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a
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EOF
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compare exp out || fail=1
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# Non-standard environment variable name. Shells won't create it, but
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# env can, and printenv must be able to deal with it.
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echo b > exp || framework_failure_
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env -- -a=b printenv -- -a > out || fail=1
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compare exp out || fail=1
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# Silently reject invalid env-var names.
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# Bug present through coreutils 8.0.
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env a=b=c printenv a=b > out
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test $? = 1 || fail=1
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test -s out && fail=1
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Exit $fail
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