1 /* Copyright (C) 1997-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
26 #include <libc-pointer-arith.h>
27 #include <array_length.h>
28 #include <support/xunistd.h>
29 #include <support/check.h>
30 #include <support/next_to_fault.h>
34 struct test_case_struct
41 const char *wordv
[10];
43 } static test_case
[] =
45 /* Simple word- and field-splitting */
46 { 0, NULL
, "one", 0, 1, { "one", }, IFS
},
47 { 0, NULL
, "one two", 0, 2, { "one", "two", }, IFS
},
48 { 0, NULL
, "one two three", 0, 3, { "one", "two", "three", }, IFS
},
49 { 0, NULL
, " \tfoo\t\tbar ", 0, 2, { "foo", "bar", }, IFS
},
50 { 0, NULL
, "red , white blue", 0, 4, { "red", ",", "white", "blue", }, " ," },
51 { 0, NULL
, "one two three", 0, 3, { "one", "two", "three", }, "" },
52 { 0, NULL
, "one \"two three\"", 0, 2, { "one", "two three", }, IFS
},
53 { 0, NULL
, "one \"two three\"", 0, 2, { "one", "two three", }, "" },
54 { 0, "two three", "one \"$var\"", 0, 2, { "one", "two three", }, IFS
},
55 { 0, "two three", "one $var", 0, 3, { "one", "two", "three", }, IFS
},
56 { 0, "two three", "one \"$var\"", 0, 2, { "one", "two three", }, "" },
57 { 0, "two three", "one $var", 0, 2, { "one", "two three", }, "" },
59 /* The non-whitespace IFS char at the end delimits the second field
60 * but does NOT start a new field. */
61 { 0, ":abc:", "$var", 0, 2, { "", "abc", }, ":" },
63 { 0, NULL
, "$(echo :abc:)", 0, 2, { "", "abc", }, ":" },
64 { 0, NULL
, "$(echo :abc:\\ )", 0, 2, { "", "abc", }, ": " },
65 { 0, NULL
, "$(echo :abc\\ )", 0, 2, { "", "abc", }, ": " },
66 { 0, ":abc:", "$(echo $var)", 0, 2, { "", "abc", }, ":" },
67 { 0, NULL
, ":abc:", 0, 1, { ":abc:", }, ":" },
68 { 0, NULL
, "$(echo :abc:)def", 0, 3, { "", "abc", "def", },
70 { 0, NULL
, "$(echo abc:de)f", 0, 2, { "abc", "def", }, ":" },
71 { 0, NULL
, "$(echo abc:de)f:ghi", 0, 2, { "abc", "def:ghi", },
73 { 0, NULL
, "abc:d$(echo ef:ghi)", 0, 2, { "abc:def", "ghi", },
75 { 0, "abc:", "$var$(echo def:ghi)", 0, 3, { "abc", "def",
77 { 0, "abc:d", "$var$(echo ef:ghi)", 0, 3, { "abc", "def",
79 { 0, "def:ghi", "$(echo abc:)$var", 0, 3, { "abc", "def",
81 { 0, "ef:ghi", "$(echo abc:d)$var", 0, 3, { "abc", "def",
84 /* Simple parameter expansion */
85 { 0, "foo", "${var}", 0, 1, { "foo", }, IFS
},
86 { 0, "foo", "$var", 0, 1, { "foo", }, IFS
},
87 { 0, "foo", "\\\"$var\\\"", 0, 1, { "\"foo\"", }, IFS
},
88 { 0, "foo", "%$var%", 0, 1, { "%foo%", }, IFS
},
89 { 0, "foo", "-$var-", 0, 1, { "-foo-", }, IFS
},
91 /* Simple quote removal */
92 { 0, NULL
, "\"quoted\"", 0, 1, { "quoted", }, IFS
},
93 { 0, "foo", "\"$var\"\"$var\"", 0, 1, { "foofoo", }, IFS
},
94 { 0, NULL
, "'singly-quoted'", 0, 1, { "singly-quoted", }, IFS
},
95 { 0, NULL
, "contin\\\nuation", 0, 1, { "continuation", }, IFS
},
96 { 0, NULL
, "explicit ''", 0, 2, { "explicit", "", }, IFS
},
97 { 0, NULL
, "explicit \"\"", 0, 2, { "explicit", "", }, IFS
},
98 { 0, NULL
, "explicit ``", 0, 1, { "explicit", }, IFS
},
100 /* Simple command substitution */
101 { 0, NULL
, "$(echo hello)", 0, 1, { "hello", }, IFS
},
102 { 0, NULL
, "$( (echo hello) )", 0, 1, { "hello", }, IFS
},
103 { 0, NULL
, "$((echo hello);(echo there))", 0, 2, { "hello", "there", }, IFS
},
104 { 0, NULL
, "`echo one two`", 0, 2, { "one", "two", }, IFS
},
105 { 0, NULL
, "$(echo ')')", 0, 1, { ")" }, IFS
},
106 { 0, NULL
, "$(echo hello; echo)", 0, 1, { "hello", }, IFS
},
107 { 0, NULL
, "a$(echo b)c", 0, 1, { "abc", }, IFS
},
109 /* Simple arithmetic expansion */
110 { 0, NULL
, "$((1 + 1))", 0, 1, { "2", }, IFS
},
111 { 0, NULL
, "$((2-3))", 0, 1, { "-1", }, IFS
},
112 { 0, NULL
, "$((-1))", 0, 1, { "-1", }, IFS
},
113 { 0, NULL
, "$[50+20]", 0, 1, { "70", }, IFS
},
114 { 0, NULL
, "$(((2+3)*(4+5)))", 0, 1, { "45", }, IFS
},
115 { 0, NULL
, "$((010))", 0, 1, { "8" }, IFS
},
116 { 0, NULL
, "$((0x10))", 0, 1, { "16" }, IFS
},
117 { 0, NULL
, "$((010+0x10))", 0, 1, { "24" }, IFS
},
118 { 0, NULL
, "$((-010+0x10))", 0, 1, { "8" }, IFS
},
119 { 0, NULL
, "$((-0x10+010))", 0, 1, { "-8" }, IFS
},
121 /* Advanced parameter expansion */
122 { 0, NULL
, "${var:-bar}", 0, 1, { "bar", }, IFS
},
123 { 0, NULL
, "${var-bar}", 0, 1, { "bar", }, IFS
},
124 { 0, "", "${var:-bar}", 0, 1, { "bar", }, IFS
},
125 { 0, "foo", "${var:-bar}", 0, 1, { "foo", }, IFS
},
126 { 0, "", "${var-bar}", 0, 0, { NULL
, }, IFS
},
127 { 0, NULL
, "${var:=bar}", 0, 1, { "bar", }, IFS
},
128 { 0, NULL
, "${var=bar}", 0, 1, { "bar", }, IFS
},
129 { 0, "", "${var:=bar}", 0, 1, { "bar", }, IFS
},
130 { 0, "foo", "${var:=bar}", 0, 1, { "foo", }, IFS
},
131 { 0, "", "${var=bar}", 0, 0, { NULL
, }, IFS
},
132 { 0, "foo", "${var:?bar}", 0, 1, { "foo", }, IFS
},
133 { 0, NULL
, "${var:+bar}", 0, 0, { NULL
, }, IFS
},
134 { 0, NULL
, "${var+bar}", 0, 0, { NULL
, }, IFS
},
135 { 0, "", "${var:+bar}", 0, 0, { NULL
, }, IFS
},
136 { 0, "foo", "${var:+bar}", 0, 1, { "bar", }, IFS
},
137 { 0, "", "${var+bar}", 0, 1, { "bar", }, IFS
},
138 { 0, "12345", "${#var}", 0, 1, { "5", }, IFS
},
139 { 0, NULL
, "${var:-'}'}", 0, 1, { "}", }, IFS
},
140 { 0, NULL
, "${var-}", 0, 0, { NULL
}, IFS
},
142 { 0, "pizza", "${var#${var}}", 0, 0, { NULL
}, IFS
},
143 { 0, "pepperoni", "${var%$(echo oni)}", 0, 1, { "pepper" }, IFS
},
144 { 0, "6pack", "${var#$((6))}", 0, 1, { "pack" }, IFS
},
145 { 0, "b*witched", "${var##b*}", 0, 0, { NULL
}, IFS
},
146 { 0, "b*witched", "${var##\"b*\"}", 0, 1, { "witched" }, IFS
},
147 { 0, "banana", "${var%na*}", 0, 1, { "bana", }, IFS
},
148 { 0, "banana", "${var%%na*}", 0, 1, { "ba", }, IFS
},
149 { 0, "borabora-island", "${var#*bora}", 0, 1, { "bora-island", }, IFS
},
150 { 0, "borabora-island", "${var##*bora}", 0, 1, { "-island", }, IFS
},
151 { 0, "coconut", "${var##\\*co}", 0, 1, { "coconut", }, IFS
},
152 { 0, "100%", "${var%0%}", 0, 1, { "10" }, IFS
},
154 /* Pathname expansion */
155 { 0, NULL
, "???", 0, 2, { "one", "two", }, IFS
},
156 { 0, NULL
, "[ot]??", 0, 2, { "one", "two", }, IFS
},
157 { 0, NULL
, "t*", 0, 2, { "three", "two", }, IFS
},
158 { 0, NULL
, "\"t\"*", 0, 2, { "three", "two", }, IFS
},
160 /* Nested constructs */
161 { 0, "one two", "$var", 0, 2, { "one", "two", }, IFS
},
162 { 0, "one two three", "$var", 0, 3, { "one", "two", "three", }, IFS
},
163 { 0, " \tfoo\t\tbar ", "$var", 0, 2, { "foo", "bar", }, IFS
},
164 { 0, " red , white blue", "$var", 0, 3, { "red", "white", "blue", }, ", \n\t" },
165 { 0, " red , white blue", "\"$var\"", 0, 1, { " red , white blue", }, ", \n\t" },
166 { 0, NULL
, "\"$(echo hello there)\"", 0, 1, { "hello there", }, IFS
},
167 { 0, NULL
, "\"$(echo \"hello there\")\"", 0, 1, { "hello there", }, IFS
},
168 { 0, NULL
, "${var=one two} \"$var\"", 0, 3, { "one", "two", "one two", }, IFS
},
169 { 0, "1", "$(( $(echo 3)+$var ))", 0, 1, { "4", }, IFS
},
170 { 0, NULL
, "\"$(echo \"*\")\"", 0, 1, { "*", }, IFS
},
171 { 0, NULL
, "\"a\n\n$(echo)b\"", 0, 1, { "a\n\nb", }, IFS
},
172 { 0, "foo", "*$var*", 0, 1, { "*foo*", }, IFS
},
173 { 0, "o thr", "*$var*", 0, 2, { "two", "three" }, IFS
},
175 /* Different IFS values */
176 { 0, "a b\tc\nd ", "$var", 0, 4, { "a", "b", "c", "d" }, NULL
/* unset */ },
177 { 0, "a b\tc d ", "$var", 0, 1, { "a b\tc d " }, "" /* `null' */ },
178 { 0, "a,b c\n, d", "$var", 0, 3, { "a", "b c", " d" }, "\t\n," },
180 /* Other things that should succeed */
181 { 0, NULL
, "\\*\"|&;<>\"\\(\\)\\{\\}", 0, 1, { "*|&;<>(){}", }, IFS
},
182 { 0, "???", "$var", 0, 1, { "???", }, IFS
},
183 { 0, NULL
, "$var", 0, 0, { NULL
, }, IFS
},
184 { 0, NULL
, "\"\\n\"", 0, 1, { "\\n", }, IFS
},
185 { 0, NULL
, "", 0, 0, { NULL
, }, IFS
},
187 /* Flags not already covered (testit() has special handling for these) */
188 { 0, NULL
, "one two", WRDE_DOOFFS
, 2, { "one", "two", }, IFS
},
189 { 0, NULL
, "appended", WRDE_APPEND
, 3, { "pre1", "pre2", "appended", }, IFS
},
190 { 0, NULL
, "appended", WRDE_DOOFFS
|WRDE_APPEND
, 3, { "pre1", "pre2", "appended", }, IFS
},
192 /* Things that should fail */
193 { WRDE_BADCHAR
, NULL
, "new\nline", 0, 0, { NULL
, }, "" /* \n not IFS */ },
194 { WRDE_BADCHAR
, NULL
, "pipe|symbol", 0, 0, { NULL
, }, IFS
},
195 { WRDE_BADCHAR
, NULL
, "&ersand", 0, 0, { NULL
, }, IFS
},
196 { WRDE_BADCHAR
, NULL
, "semi;colon", 0, 0, { NULL
, }, IFS
},
197 { WRDE_BADCHAR
, NULL
, "<greater", 0, 0, { NULL
, }, IFS
},
198 { WRDE_BADCHAR
, NULL
, "less>", 0, 0, { NULL
, }, IFS
},
199 { WRDE_BADCHAR
, NULL
, "(open-paren", 0, 0, { NULL
, }, IFS
},
200 { WRDE_BADCHAR
, NULL
, "close-paren)", 0, 0, { NULL
, }, IFS
},
201 { WRDE_BADCHAR
, NULL
, "{open-brace", 0, 0, { NULL
, }, IFS
},
202 { WRDE_BADCHAR
, NULL
, "close-brace}", 0, 0, { NULL
, }, IFS
},
203 { WRDE_BADVAL
, NULL
, "$var", WRDE_UNDEF
, 0, { NULL
, }, IFS
},
204 { WRDE_BADVAL
, NULL
, "$9", WRDE_UNDEF
, 0, { NULL
, }, IFS
},
205 { WRDE_SYNTAX
, NULL
, "$[50+20))", 0, 0, { NULL
, }, IFS
},
206 { WRDE_SYNTAX
, NULL
, "${%%noparam}", 0, 0, { NULL
, }, IFS
},
207 { WRDE_SYNTAX
, NULL
, "${missing-brace", 0, 0, { NULL
, }, IFS
},
208 { WRDE_SYNTAX
, NULL
, "$(for i in)", 0, 0, { NULL
, }, IFS
},
209 { WRDE_SYNTAX
, NULL
, "$((2+))", 0, 0, { NULL
, }, IFS
},
210 { WRDE_SYNTAX
, NULL
, "`", 0, 0, { NULL
, }, IFS
},
211 { WRDE_SYNTAX
, NULL
, "$((010+4+))", 0, 0, { NULL
}, IFS
},
213 { WRDE_SYNTAX
, NULL
, "`\\", 0, 0, { NULL
, }, IFS
}, /* BZ 18042 */
214 { WRDE_SYNTAX
, NULL
, "${", 0, 0, { NULL
, }, IFS
}, /* BZ 18043 */
215 { WRDE_SYNTAX
, NULL
, "L${a:", 0, 0, { NULL
, }, IFS
}, /* BZ 18043#c4 */
218 static int testit (struct test_case_struct
*tc
);
222 command_line_test (const char *words
)
226 int retval
= wordexp (words
, &we
, 0);
227 printf ("info: wordexp returned %d\n", retval
);
228 for (i
= 0; i
< we
.we_wordc
; i
++)
229 printf ("info: we_wordv[%d] = \"%s\"\n", i
, we
.we_wordv
[i
]);
233 do_test (int argc
, char *argv
[])
235 const char *globfile
[] = { "one", "two", "three" };
240 struct test_case_struct ts
;
244 command_line_test (argv
[1]);
248 cwd
= getcwd (NULL
, 0);
250 /* Set up arena for pathname expansion */
252 xmkdir (tmpdir
, S_IRWXU
);
253 TEST_VERIFY_EXIT (chdir (tmpdir
) == 0);
255 for (int i
= 0; i
< array_length (globfile
); ++i
)
257 int fd
= xopen (globfile
[i
], O_WRONLY
|O_CREAT
|O_TRUNC
,
262 for (test
= 0; test
< array_length (test_case
); test
++)
263 TEST_COMPARE (testit (&test_case
[test
]), 0);
265 /* Tilde-expansion tests. */
266 pw
= getpwnam ("root");
274 ts
.wordv
[0] = pw
->pw_dir
;
277 TEST_COMPARE (testit (&ts
), 0);
281 ts
.words
= "${var#~root}x";
287 TEST_COMPARE (testit (&ts
), 0);
290 /* "~" expands to value of $HOME when HOME is set */
292 setenv ("HOME", "/dummy/home", 1);
295 ts
.words
= "~ ~/foo";
298 ts
.wordv
[0] = "/dummy/home";
299 ts
.wordv
[1] = "/dummy/home/foo";
302 TEST_COMPARE (testit (&ts
), 0);
304 /* "~" expands to home dir from passwd file if HOME is not set */
306 pw
= getpwuid (getuid ());
315 ts
.wordv
[0] = pw
->pw_dir
;
318 TEST_COMPARE (testit (&ts
), 0);
321 puts ("tests completed, now cleaning up");
324 for (int i
= 0; i
< array_length (globfile
); ++i
)
325 remove (globfile
[i
]);
336 struct support_next_to_fault
337 at_page_end (const char *words
)
339 const size_t words_size
= strlen (words
) + 1;
340 struct support_next_to_fault ntf
341 = support_next_to_fault_allocate (words_size
);
343 /* Includes terminating NUL. */
344 memcpy (ntf
.buffer
, words
, words_size
);
350 testit (struct test_case_struct
*tc
)
353 wordexp_t we
, sav_we
;
360 setenv ("var", tc
->env
, 1);
365 setenv ("IFS", tc
->ifs
, 1);
369 sav_we
.we_wordc
= 99;
370 sav_we
.we_wordv
= &dummy
;
374 printf ("info: test %d (%s): ", ++tests
, tc
->words
);
376 struct support_next_to_fault words
= at_page_end (tc
->words
);
378 if (tc
->flags
& WRDE_APPEND
)
380 /* initial wordexp() call, to be appended to */
381 if (wordexp ("pre1 pre2", &we
, tc
->flags
& ~WRDE_APPEND
) != 0)
383 printf ("info: FAILED setup\n");
387 retval
= wordexp (words
.buffer
, &we
, tc
->flags
);
389 if (tc
->flags
& WRDE_DOOFFS
)
390 start_offs
= sav_we
.we_offs
;
392 if (retval
!= tc
->retval
|| (retval
== 0 && we
.we_wordc
!= tc
->wordc
))
394 else if (retval
== 0)
396 for (i
= 0; i
< start_offs
; ++i
)
397 if (we
.we_wordv
[i
] != NULL
)
403 for (i
= 0; i
< we
.we_wordc
; ++i
)
404 if (we
.we_wordv
[i
+start_offs
] == NULL
405 || strcmp (tc
->wordv
[i
], we
.we_wordv
[i
+start_offs
]) != 0)
415 printf ("info: Test words: <%s>, need retval %d, wordc %Zd\n",
416 tc
->words
, tc
->retval
, tc
->wordc
);
418 printf ("(preceded by %d NULLs)\n", start_offs
);
419 printf ("Got retval %d, wordc %Zd: ", retval
, we
.we_wordc
);
420 if (retval
== 0 || retval
== WRDE_NOSPACE
)
422 for (i
= 0; i
< we
.we_wordc
+ start_offs
; ++i
)
423 if (we
.we_wordv
[i
] == NULL
)
426 printf ("<%s> ", we
.we_wordv
[i
]);
430 else if (retval
!= 0 && retval
!= WRDE_NOSPACE
431 && (we
.we_wordc
!= sav_we
.we_wordc
432 || we
.we_wordv
!= sav_we
.we_wordv
433 || we
.we_offs
!= sav_we
.we_offs
))
436 printf ("FAILED to restore wordexp_t members\n");
441 if (retval
== 0 || retval
== WRDE_NOSPACE
)
444 support_next_to_fault_free (&words
);
450 #define TEST_FUNCTION_ARGV do_test
451 #include <support/test-driver.c>