Add rbash test

stable-patches/MANIFEST.patch

@@ -0,0 +1,21 @@
+diff --git a/MANIFEST b/MANIFEST
+index 985d179..2a1cd25 100644
+--- a/MANIFEST
++++ b/MANIFEST
+@@ -1455,6 +1455,8 @@ tests/quotearray2.sub	f
+ tests/quotearray3.sub	f
+ tests/quotearray4.sub	f
+ tests/quotearray5.sub	f
++tests/rbash.tests	f
++tests/rbash.right	f
+ tests/read.tests	f
+ tests/read.right	f
+ tests/read1.sub		f
+@@ -1565,6 +1567,7 @@ tests/run-printf	f
+ tests/run-procsub	f
+ tests/run-quote		f
+ tests/run-quotearray	f
++tests/run-rbash	f
+ tests/run-read		f
+ tests/run-redir		f
+ tests/run-rhs-exp	f

stable-patches/tests/rbash_test.patch

@@ -0,0 +1,141 @@
+diff --git a/tests/rbash.tests b/tests/rbash.tests
+new file mode 100644
+index 0000000..a9c88cc
+--- /dev/null
++++ b/tests/rbash.tests
+@@ -0,0 +1,86 @@
++#!/bin/bash
++#
++# test_rbash.sh - Simple test script for restricted bash (rbash)
++#
++# This script tests basic rbash restrictions to verify the bashport
++# implementation is working correctly.
++#
++
++echo "=== Restricted Bash (rbash) Test Suite ==="
++echo ""
++
++PASSED=0
++FAILED=0
++
++# Helper function to test a restriction
++test_restriction() {
++    local test_name="$1"
++    local command="$2"
++    
++    echo "Testing: $test_name"
++    
++    # Run command in rbash and capture exit code
++    ${THIS_SH} -r -c "$command" 2>/dev/null
++    local exit_code=$?
++    
++    # For restricted operations, we expect non-zero exit code
++    if [ $exit_code -ne 0 ]; then
++        echo "  [PASS]: Command properly restricted (exit code: $exit_code)"
++        ((PASSED++))
++    else
++        echo "  [FAIL]: Command should have been restricted but succeeded"
++        ((FAILED++))
++    fi
++    echo ""
++}
++
++# Test 1: Cannot change directory
++test_restriction "cd restriction" "cd /"
++
++# Test 2: Cannot modify PATH
++test_restriction "PATH modification" "PATH=/bin:/usr/bin"
++
++# Test 3: Cannot use commands with absolute path
++test_restriction "command with /" "/usr/bin/env"
++
++# Test 4: Cannot redirect output
++test_restriction "output redirection" "echo test > test.txt"
++
++# Test 5: Cannot use exec builtin
++test_restriction "exec builtin" "exec ls"
++
++# Test 6: Cannot modify SHELL variable
++test_restriction "SHELL modification" "SHELL=/bin/sh"
++
++# Test 7: Cannot modify ENV variable
++test_restriction "ENV modification" "ENV=/etc/profile"
++
++# Test 8: Cannot modify BASH_ENV variable
++test_restriction "BASH_ENV modification" "BASH_ENV=/etc/profile"
++
++# Test 9: Allowed operation - simple echo should work
++echo "Testing: allowed operation (echo)"
++${THIS_SH} -r -c "echo 'Hello from rbash'" >/dev/null 2>&1
++if [ $? -eq 0 ]; then
++    echo "  [PASS]: Allowed command works correctly"
++    ((PASSED++))
++else
++    echo "  [FAIL]: Allowed command failed"
++    ((FAILED++))
++fi
++echo ""
++
++# Summary
++echo "=== Test Summary ==="
++echo "Total tests: $((PASSED + FAILED))"
++echo "Passed: $PASSED"
++echo "Failed: $FAILED"
++echo ""
++
++if [ $FAILED -eq 0 ]; then
++    echo "[PASS] All rbash restriction tests passed!"
++    exit 0
++else
++    echo "[FAIL] Some rbash restriction tests failed!"
++    exit 1
++fi
+diff --git a/tests/rbash.right b/tests/rbash.right
+new file mode 100644
+index 0000000..e831f1d
+--- /dev/null
++++ b/tests/rbash.right
+@@ -0,0 +1,35 @@
++=== Restricted Bash (rbash) Test Suite ===
++
++Testing: cd restriction
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: PATH modification
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: command with /
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: output redirection
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: exec builtin
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: SHELL modification
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: ENV modification
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: BASH_ENV modification
++  [PASS]: Command properly restricted (exit code: 1)
++
++Testing: allowed operation (echo)
++  [PASS]: Allowed command works correctly
++
++=== Test Summary ===
++Total tests: 9
++Passed: 9
++Failed: 0
++
++[PASS] All rbash restriction tests passed!
+diff --git a/tests/run-rbash b/tests/run-rbash
+new file mode 100644
+index 0000000..f80b7f2
+--- /dev/null
++++ b/tests/run-rbash
+@@ -0,0 +1,2 @@
++${THIS_SH} ./rbash.tests > ${BASH_TSTOUT} 2>&1
++diff ${BASH_TSTOUT} rbash.right | tee rbash.output && rm -f ${BASH_TSTOUT}