1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (c) 2012, The Chromium Authors
4 */
5
6#define DEBUG
7
8#include <common.h>
9#include <command.h>
10#include <env.h>
11#include <log.h>
12#include <string.h>
13#include <linux/errno.h>
14
15static const char test_cmd[] = "setenv list 1\n setenv list ${list}2; "
16		"setenv list ${list}3\0"
17		"setenv list ${list}4";
18
19static int do_ut_cmd(struct cmd_tbl *cmdtp, int flag, int argc,
20		     char *const argv[])
21{
22	char long_str[CONFIG_SYS_CBSIZE + 42];
23
24	printf("%s: Testing commands\n", __func__);
25	run_command("env default -f -a", 0);
26
27	/* commands separated by \n */
28	run_command_list("setenv list 1\n setenv list ${list}1", -1, 0);
29	assert(!strcmp("11", env_get("list")));
30
31	/* command followed by \n and nothing else */
32	run_command_list("setenv list 1${list}\n", -1, 0);
33	assert(!strcmp("111", env_get("list")));
34
35	/* a command string with \0 in it. Stuff after \0 should be ignored */
36	run_command("setenv list", 0);
37	run_command_list(test_cmd, sizeof(test_cmd), 0);
38	assert(!strcmp("123", env_get("list")));
39
40	/*
41	 * a command list where we limit execution to only the first command
42	 * using the length parameter.
43	 */
44	run_command_list("setenv list 1\n setenv list ${list}2; "
45		"setenv list ${list}3", strlen("setenv list 1"), 0);
46	assert(!strcmp("1", env_get("list")));
47
48	assert(run_command("false", 0) == 1);
49	assert(run_command("echo", 0) == 0);
50	assert(run_command_list("false", -1, 0) == 1);
51	assert(run_command_list("echo", -1, 0) == 0);
52
53#ifdef CONFIG_HUSH_PARSER
54	run_command("setenv foo 'setenv black 1\nsetenv adder 2'", 0);
55	run_command("run foo", 0);
56	assert(env_get("black") != NULL);
57	assert(!strcmp("1", env_get("black")));
58	assert(env_get("adder") != NULL);
59	assert(!strcmp("2", env_get("adder")));
60#endif
61
62	assert(run_command("", 0) == 0);
63	assert(run_command(" ", 0) == 0);
64
65	assert(run_command("'", 0) == 1);
66
67	/* Variadic function test-cases */
68#pragma GCC diagnostic push
69#pragma GCC diagnostic ignored "-Wformat-zero-length"
70	assert(run_commandf("") == 0);
71#pragma GCC diagnostic pop
72	assert(run_commandf(" ") == 0);
73	assert(run_commandf("'") == 1);
74
75	assert(run_commandf("env %s %s", "delete -f", "list") == 0);
76	/* Expected: "Error: "list" not defined" */
77	assert(run_commandf("printenv list") == 1);
78
79	memset(long_str, 'x', sizeof(long_str));
80	assert(run_commandf("Truncation case: %s", long_str) == -ENOSPC);
81
82	if (IS_ENABLED(CONFIG_HUSH_PARSER)) {
83		assert(run_commandf("env %s %s %s %s", "delete -f", "adder",
84				    "black", "foo") == 0);
85		assert(run_commandf("setenv foo 'setenv %s 1\nsetenv %s 2'",
86				    "black", "adder") == 0);
87		run_command("run foo", 0);
88		assert(env_get("black"));
89		assert(!strcmp("1", env_get("black")));
90		assert(env_get("adder"));
91		assert(!strcmp("2", env_get("adder")));
92	}
93
94	/* Clean up before exit */
95	run_command("env default -f -a", 0);
96
97	printf("%s: Everything went swimmingly\n", __func__);
98	return 0;
99}
100
101U_BOOT_CMD(
102	ut_cmd,	5,	1,	do_ut_cmd,
103	"Very basic test of command parsers",
104	""
105);
106