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