1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 2021 Mariusz Zaborski <oshogbo@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Test for clearenv(3) routine. 30 */ 31 32 #include <sys/cdefs.h> 33 #include <atf-c.h> 34 35 #include <stdio.h> 36 #include <stdlib.h> 37 38 #define TEST_VARIABLE "TEST_VAR" 39 #define TEST_SYSTEM_VARIABLE "PWD" 40 41 extern char **environ; 42 43 void 44 create_multiple_variables(int num) 45 { 46 char name[64]; 47 char value[64]; 48 int i; 49 50 for (i = 0; i < num; i++) { 51 snprintf(name, sizeof(name), "%s_%d", TEST_VARIABLE, i); 52 snprintf(value, sizeof(value), "%d", i); 53 ATF_CHECK(getenv(name) == NULL); 54 ATF_CHECK(setenv(name, value, 0) != -1); 55 ATF_CHECK_STREQ(getenv(name), value); 56 } 57 } 58 59 void 60 check_if_nulled_variables(int num) 61 { 62 char name[64]; 63 int i; 64 65 for (i = 0; i < num; i++) { 66 snprintf(name, sizeof(name), "%s_%d", TEST_VARIABLE, i); 67 ATF_CHECK(getenv(name) == NULL); 68 } 69 } 70 71 ATF_TC_WITHOUT_HEAD(clearenv__single_var_test); 72 ATF_TC_BODY(clearenv__single_var_test, tc) 73 { 74 75 ATF_CHECK(setenv(TEST_VARIABLE, "true", 0) != -1); 76 ATF_CHECK_STREQ(getenv(TEST_VARIABLE), "true"); 77 ATF_CHECK(clearenv() == 0); 78 ATF_CHECK(getenv(TEST_VARIABLE) == NULL); 79 } 80 81 ATF_TC_WITHOUT_HEAD(clearenv__multiple_vars_test); 82 ATF_TC_BODY(clearenv__multiple_vars_test, tc) 83 { 84 85 create_multiple_variables(10); 86 ATF_CHECK(clearenv() == 0); 87 check_if_nulled_variables(10); 88 } 89 90 ATF_TC_WITHOUT_HEAD(clearenv__recreated_vars_test); 91 ATF_TC_BODY(clearenv__recreated_vars_test, tc) 92 { 93 94 create_multiple_variables(10); 95 ATF_CHECK(clearenv() == 0); 96 check_if_nulled_variables(10); 97 create_multiple_variables(10); 98 } 99 100 ATF_TC_WITHOUT_HEAD(clearenv__system_var_test); 101 ATF_TC_BODY(clearenv__system_var_test, tc) 102 { 103 104 ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) != NULL); 105 ATF_CHECK(clearenv() == 0); 106 ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) == NULL); 107 } 108 109 ATF_TC_WITHOUT_HEAD(clearenv__recreated_system_var_test); 110 ATF_TC_BODY(clearenv__recreated_system_var_test, tc) 111 { 112 113 ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) != NULL); 114 ATF_CHECK(clearenv() == 0); 115 ATF_CHECK(getenv(TEST_SYSTEM_VARIABLE) == NULL); 116 ATF_CHECK(setenv(TEST_SYSTEM_VARIABLE, "test", 0) != -1); 117 ATF_CHECK_STREQ(getenv(TEST_SYSTEM_VARIABLE), "test"); 118 } 119 120 ATF_TC_WITHOUT_HEAD(clearenv__double_clear_vars); 121 ATF_TC_BODY(clearenv__double_clear_vars, tc) 122 { 123 124 create_multiple_variables(10); 125 ATF_CHECK(clearenv() == 0); 126 check_if_nulled_variables(10); 127 ATF_CHECK(clearenv() == 0); 128 check_if_nulled_variables(10); 129 create_multiple_variables(10); 130 } 131 132 ATF_TC_WITHOUT_HEAD(clearenv__environ_null); 133 ATF_TC_BODY(clearenv__environ_null, tc) 134 { 135 136 ATF_CHECK(clearenv() == 0); 137 ATF_CHECK(environ != NULL); 138 } 139 140 ATF_TC_WITHOUT_HEAD(clearenv__putenv_vars); 141 ATF_TC_BODY(clearenv__putenv_vars, tc) 142 { 143 char buf[64], ref[64]; 144 145 snprintf(buf, sizeof(buf), "%s=1", TEST_VARIABLE); 146 strcpy(ref, buf); 147 148 ATF_CHECK(getenv(TEST_VARIABLE) == NULL); 149 ATF_CHECK(putenv(buf) != -1); 150 ATF_CHECK(strcmp(getenv(TEST_VARIABLE), "1") == 0); 151 152 ATF_CHECK(clearenv() == 0); 153 154 ATF_CHECK(getenv(TEST_VARIABLE) == NULL); 155 ATF_CHECK(strcmp(buf, ref) == 0); 156 } 157 158 ATF_TP_ADD_TCS(tp) 159 { 160 161 ATF_TP_ADD_TC(tp, clearenv__single_var_test); 162 ATF_TP_ADD_TC(tp, clearenv__multiple_vars_test); 163 ATF_TP_ADD_TC(tp, clearenv__recreated_vars_test); 164 165 ATF_TP_ADD_TC(tp, clearenv__system_var_test); 166 ATF_TP_ADD_TC(tp, clearenv__recreated_system_var_test); 167 168 ATF_TP_ADD_TC(tp, clearenv__double_clear_vars); 169 ATF_TP_ADD_TC(tp, clearenv__environ_null); 170 171 ATF_TP_ADD_TC(tp, clearenv__putenv_vars); 172 173 return (atf_no_error()); 174 } 175