1 /* 2 * Copyright (c) 2012, The Chromium Authors 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #define DEBUG 8 9 #include <common.h> 10 #ifdef CONFIG_SANDBOX 11 #include <os.h> 12 #endif 13 14 static const char test_cmd[] = "setenv list 1\n setenv list ${list}2; " 15 "setenv list ${list}3\0" 16 "setenv list ${list}4"; 17 18 static int do_ut_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) 19 { 20 printf("%s: Testing commands\n", __func__); 21 run_command("env default -f -a", 0); 22 23 /* run a single command */ 24 run_command("setenv single 1", 0); 25 assert(!strcmp("1", getenv("single"))); 26 27 /* make sure that compound statements work */ 28 #ifdef CONFIG_SYS_HUSH_PARSER 29 run_command("if test -n ${single} ; then setenv check 1; fi", 0); 30 assert(!strcmp("1", getenv("check"))); 31 run_command("setenv check", 0); 32 #endif 33 34 /* commands separated by ; */ 35 run_command_list("setenv list 1; setenv list ${list}1", -1, 0); 36 assert(!strcmp("11", getenv("list"))); 37 38 /* commands separated by \n */ 39 run_command_list("setenv list 1\n setenv list ${list}1", -1, 0); 40 assert(!strcmp("11", getenv("list"))); 41 42 /* command followed by \n and nothing else */ 43 run_command_list("setenv list 1${list}\n", -1, 0); 44 assert(!strcmp("111", getenv("list"))); 45 46 /* three commands in a row */ 47 run_command_list("setenv list 1\n setenv list ${list}2; " 48 "setenv list ${list}3", -1, 0); 49 assert(!strcmp("123", getenv("list"))); 50 51 /* a command string with \0 in it. Stuff after \0 should be ignored */ 52 run_command("setenv list", 0); 53 run_command_list(test_cmd, sizeof(test_cmd), 0); 54 assert(!strcmp("123", getenv("list"))); 55 56 /* 57 * a command list where we limit execution to only the first command 58 * using the length parameter. 59 */ 60 run_command_list("setenv list 1\n setenv list ${list}2; " 61 "setenv list ${list}3", strlen("setenv list 1"), 0); 62 assert(!strcmp("1", getenv("list"))); 63 64 assert(run_command("false", 0) == 1); 65 assert(run_command("echo", 0) == 0); 66 assert(run_command_list("false", -1, 0) == 1); 67 assert(run_command_list("echo", -1, 0) == 0); 68 69 run_command("setenv foo 'setenv monty 1; setenv python 2'", 0); 70 run_command("run foo", 0); 71 assert(getenv("monty") != NULL); 72 assert(!strcmp("1", getenv("monty"))); 73 assert(getenv("python") != NULL); 74 assert(!strcmp("2", getenv("python"))); 75 76 #ifdef CONFIG_SYS_HUSH_PARSER 77 run_command("setenv foo 'setenv black 1\nsetenv adder 2'", 0); 78 run_command("run foo", 0); 79 assert(getenv("black") != NULL); 80 assert(!strcmp("1", getenv("black"))); 81 assert(getenv("adder") != NULL); 82 assert(!strcmp("2", getenv("adder"))); 83 84 /* Test the 'test' command */ 85 86 #define HUSH_TEST(name, expr, expected_result) \ 87 run_command("if test " expr " ; then " \ 88 "setenv " #name "_" #expected_result " y; else " \ 89 "setenv " #name "_" #expected_result " n; fi", 0); \ 90 assert(!strcmp(#expected_result, getenv(#name "_" #expected_result))); \ 91 setenv(#name "_" #expected_result, NULL); 92 93 /* Basic operators */ 94 HUSH_TEST(streq, "aaa = aaa", y); 95 HUSH_TEST(streq, "aaa = bbb", n); 96 97 HUSH_TEST(strneq, "aaa != bbb", y); 98 HUSH_TEST(strneq, "aaa != aaa", n); 99 100 HUSH_TEST(strlt, "aaa < bbb", y); 101 HUSH_TEST(strlt, "bbb < aaa", n); 102 103 HUSH_TEST(strgt, "bbb > aaa", y); 104 HUSH_TEST(strgt, "aaa > bbb", n); 105 106 HUSH_TEST(eq, "123 -eq 123", y); 107 HUSH_TEST(eq, "123 -eq 456", n); 108 109 HUSH_TEST(ne, "123 -ne 456", y); 110 HUSH_TEST(ne, "123 -ne 123", n); 111 112 HUSH_TEST(lt, "123 -lt 456", y); 113 HUSH_TEST(lt_eq, "123 -lt 123", n); 114 HUSH_TEST(lt, "456 -lt 123", n); 115 116 HUSH_TEST(le, "123 -le 456", y); 117 HUSH_TEST(le_eq, "123 -le 123", y); 118 HUSH_TEST(le, "456 -le 123", n); 119 120 HUSH_TEST(gt, "456 -gt 123", y); 121 HUSH_TEST(gt_eq, "123 -gt 123", n); 122 HUSH_TEST(gt, "123 -gt 456", n); 123 124 HUSH_TEST(ge, "456 -ge 123", y); 125 HUSH_TEST(ge_eq, "123 -ge 123", y); 126 HUSH_TEST(ge, "123 -ge 456", n); 127 128 HUSH_TEST(z, "-z \"\"", y); 129 HUSH_TEST(z, "-z \"aaa\"", n); 130 131 HUSH_TEST(n, "-n \"aaa\"", y); 132 HUSH_TEST(n, "-n \"\"", n); 133 134 /* Inversion of simple tests */ 135 HUSH_TEST(streq_inv, "! aaa = aaa", n); 136 HUSH_TEST(streq_inv, "! aaa = bbb", y); 137 138 HUSH_TEST(streq_inv_inv, "! ! aaa = aaa", y); 139 HUSH_TEST(streq_inv_inv, "! ! aaa = bbb", n); 140 141 /* Binary operators */ 142 HUSH_TEST(or_0_0, "aaa != aaa -o bbb != bbb", n); 143 HUSH_TEST(or_0_1, "aaa != aaa -o bbb = bbb", y); 144 HUSH_TEST(or_1_0, "aaa = aaa -o bbb != bbb", y); 145 HUSH_TEST(or_1_1, "aaa = aaa -o bbb = bbb", y); 146 147 HUSH_TEST(and_0_0, "aaa != aaa -a bbb != bbb", n); 148 HUSH_TEST(and_0_1, "aaa != aaa -a bbb = bbb", n); 149 HUSH_TEST(and_1_0, "aaa = aaa -a bbb != bbb", n); 150 HUSH_TEST(and_1_1, "aaa = aaa -a bbb = bbb", y); 151 152 /* Inversion within binary operators */ 153 HUSH_TEST(or_0_0_inv, "! aaa != aaa -o ! bbb != bbb", y); 154 HUSH_TEST(or_0_1_inv, "! aaa != aaa -o ! bbb = bbb", y); 155 HUSH_TEST(or_1_0_inv, "! aaa = aaa -o ! bbb != bbb", y); 156 HUSH_TEST(or_1_1_inv, "! aaa = aaa -o ! bbb = bbb", n); 157 158 HUSH_TEST(or_0_0_inv_inv, "! ! aaa != aaa -o ! ! bbb != bbb", n); 159 HUSH_TEST(or_0_1_inv_inv, "! ! aaa != aaa -o ! ! bbb = bbb", y); 160 HUSH_TEST(or_1_0_inv_inv, "! ! aaa = aaa -o ! ! bbb != bbb", y); 161 HUSH_TEST(or_1_1_inv_inv, "! ! aaa = aaa -o ! ! bbb = bbb", y); 162 163 setenv("ut_var_nonexistent", NULL); 164 setenv("ut_var_exists", "1"); 165 HUSH_TEST(z_varexp_quoted, "-z \"$ut_var_nonexistent\"", y); 166 HUSH_TEST(z_varexp_quoted, "-z \"$ut_var_exists\"", n); 167 setenv("ut_var_exists", NULL); 168 169 run_command("setenv ut_var_space \" \"", 0); 170 assert(!strcmp(getenv("ut_var_space"), " ")); 171 run_command("setenv ut_var_test $ut_var_space", 0); 172 assert(!getenv("ut_var_test")); 173 run_command("setenv ut_var_test \"$ut_var_space\"", 0); 174 assert(!strcmp(getenv("ut_var_test"), " ")); 175 run_command("setenv ut_var_test \" 1${ut_var_space}${ut_var_space} 2 \"", 0); 176 assert(!strcmp(getenv("ut_var_test"), " 1 2 ")); 177 setenv("ut_var_space", NULL); 178 setenv("ut_var_test", NULL); 179 180 #ifdef CONFIG_SANDBOX 181 /* File existence */ 182 HUSH_TEST(e, "-e hostfs - creating_this_file_breaks_uboot_unit_test", n); 183 run_command("sb save hostfs - creating_this_file_breaks_uboot_unit_test 0 1", 0); 184 HUSH_TEST(e, "-e hostfs - creating_this_file_breaks_uboot_unit_test", y); 185 /* Perhaps this could be replaced by an "rm" shell command one day */ 186 assert(!os_unlink("creating_this_file_breaks_uboot_unit_test")); 187 HUSH_TEST(e, "-e hostfs - creating_this_file_breaks_uboot_unit_test", n); 188 #endif 189 #endif 190 191 assert(run_command("", 0) == 0); 192 assert(run_command(" ", 0) == 0); 193 194 assert(run_command("'", 0) == 1); 195 196 printf("%s: Everything went swimmingly\n", __func__); 197 return 0; 198 } 199 200 U_BOOT_CMD( 201 ut_cmd, 5, 1, do_ut_cmd, 202 "Very basic test of command parsers", 203 "" 204 ); 205