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t_redircloexec.sh revision 1.2 
      1 # $NetBSD: t_redircloexec.sh,v 1.2 2016/03/16 21:13:51 christos Exp $
      2 #
      3 # Copyright (c) 2016 The NetBSD Foundation, Inc.
      4 # All rights reserved.
      5 #
      6 # This code is derived from software contributed to The NetBSD Foundation
      7 # by Christos Zoulas.
      8 #
      9 # Redistribution and use in source and binary forms, with or without
     10 # modification, are permitted provided that the following conditions
     11 # are met:
     12 # 1. Redistributions of source code must retain the above copyright
     13 #    notice, this list of conditions and the following disclaimer.
     14 # 2. Redistributions in binary form must reproduce the above copyright
     15 #    notice, this list of conditions and the following disclaimer in the
     16 #    documentation and/or other materials provided with the distribution.
     17 #
     18 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     19 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     20 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     21 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     22 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     28 # POSSIBILITY OF SUCH DAMAGE.
     29 #
     30 # the implementation of "sh" to test
     31 : ${TEST_SH:="/bin/sh"}
     32 
     33 mkhelper() {
     34 	name=$1
     35 	fd=$2
     36 	shift 2
     37 
     38 	echo "$@" > ./"${name}1"
     39 	echo "echo ${name}2" ">&${fd}" > ./"${name}2"
     40 }
     41 
     42 runhelper() {
     43 	${TEST_SH} "./${1}1"
     44 }
     45 
     46 cleanhelper() {
     47 	# not really needed, atf cleans up...
     48 	rm -f ./"${1}1" ./"${1}2" out
     49 }
     50 
     51 atf_test_case exec_redir_closed
     52 exec_redir_closed_head() {
     53 	atf_set "descr" "Tests that redirections created by exec are closed on exec"
     54 }
     55 exec_redir_closed_body() {
     56 
     57 	mkhelper exec 6 \
     58 		"exec 6> out; echo exec1 >&6; ${TEST_SH} exec2; exec 6>&-"
     59 
     60 	atf_check -s exit:0 -o empty -e not-empty ${TEST_SH} ./exec1
     61 	atf_check -s not-exit:0 -o empty -e not-empty ${TEST_SH} -e ./exec1
     62 
     63 	mkhelper exec 9 \
     64 		"exec 9> out; echo exec1 >&9; ${TEST_SH} exec2"
     65 
     66 	atf_check -s not-exit:0 -o empty -e not-empty ${TEST_SH} ./exec1
     67 
     68 	mkhelper exec 8 \
     69 		"exec 8> out; printf OK; echo exec1 >&8;" \
     70 		"printf OK; ${TEST_SH} exec2; printf ERR"
     71 
     72 	atf_check -s not-exit:0 -o match:OKOK -o not-match:ERR -e not-empty \
     73 		${TEST_SH} -e ./exec1
     74 
     75 	mkhelper exec 7 \
     76 		"exec 7> out; printf OK; echo exec1 >&7;" \
     77 		"printf OK; ${TEST_SH} exec2 || printf ERR"
     78 
     79 	atf_check -s exit:0 -o match:OKOKERR -e not-empty \
     80 		${TEST_SH} ./exec1
     81 
     82 	cleanhelper exec
     83 }
     84 
     85 atf_test_case loop_redir_open
     86 loop_redir_open_head() {
     87 	atf_set "descr" "Tests that redirections in loops don't close on exec"
     88 }
     89 loop_redir_open_body() {
     90 	mkhelper for 3 "for x in x; do ${TEST_SH} ./for2; done 3>out"
     91 	atf_check -s exit:0 \
     92 		-o empty \
     93 		-e empty \
     94 		${TEST_SH} ./for1
     95 	cleanhelper for
     96 }
     97 
     98 atf_test_case compound_redir_open
     99 compound_redir_open_head() {
    100 	atf_set "descr" "Tests that redirections in compound statements don't close on exec"
    101 }
    102 compound_redir_open_body() {
    103 	mkhelper comp 3 "{ ${TEST_SH} ./comp2; } 3>out"
    104 	atf_check -s exit:0 \
    105 		-o empty \
    106 		-e empty \
    107 		${TEST_SH} ./comp1
    108 	cleanhelper comp
    109 }
    110 
    111 atf_test_case simple_redir_open
    112 simple_redir_open_head() {
    113 	atf_set "descr" "Tests that redirections in simple commands don't close on exec"
    114 }
    115 simple_redir_open_body() {
    116 	mkhelper simp 4 "${TEST_SH} ./simp2 4>out"
    117 	atf_check -s exit:0 \
    118 		-o empty \
    119 		-e empty \
    120 		${TEST_SH} ./simp1
    121 	cleanhelper simp
    122 }
    123 
    124 atf_test_case subshell_redir_open
    125 subshell_redir_open_head() {
    126 	atf_set "descr" "Tests that redirections on subshells don't close on exec"
    127 }
    128 subshell_redir_open_body() {
    129 	mkhelper comp 5 "( ${TEST_SH} ./comp2; ${TEST_SH} ./comp2 ) 5>out"
    130 	atf_check -s exit:0 \
    131 		-o empty \
    132 		-e empty \
    133 		${TEST_SH} ./comp1
    134 	cleanhelper comp
    135 }
    136 
    137 atf_init_test_cases() {
    138 	atf_add_test_case exec_redir_closed
    139 	atf_add_test_case loop_redir_open
    140 	atf_add_test_case compound_redir_open
    141 	atf_add_test_case simple_redir_open
    142 	atf_add_test_case subshell_redir_open
    143 }
    144