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glibc/posix/wordexp-test.c
Ulrich Drepper bac660f87b Update. 
1999-04-11  Tim Waugh  <tim@cyberelk.demon.co.uk>

	* posix/wordexp.c (wordexp): Fix a leak when an invalid character
	is seen, as well as fixing semantics.  Don't reset the word count
	to zero when an invalid character is seen, but leave it as it was
	(this makes a difference with WRDE_APPEND).

	* posix/wordexp-test.c: More test cases.

	* posix/wordexp.c (parse_param): In words like ${var#pattern},
	always expand pattern when it is needed.  Also, handle quoting in
	pattern properly.
1999-04-12 09:07:36 +00:00

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/* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <wordexp.h>
#define IFS " \n\t"
struct test_case_struct
{
int retval;
const char *env;
const char *words;
int flags;
int wordc;
const char *wordv[10];
const char *ifs;
} test_case[] =
{
/* Simple word- and field-splitting */
{ 0, NULL, "one", 0, 1, { "one", }, IFS },
{ 0, NULL, "one two", 0, 2, { "one", "two", }, IFS },
{ 0, NULL, "one two three", 0, 3, { "one", "two", "three", }, IFS },
{ 0, NULL, " \tfoo\t\tbar ", 0, 2, { "foo", "bar", }, IFS },
{ 0, NULL, "red , white blue", 0, 4, { "red", ",", "white", "blue", }, " ," },
{ 0, NULL, "one two three", 0, 3, { "one", "two", "three", }, "" },
{ 0, NULL, "one \"two three\"", 0, 2, { "one", "two three", }, IFS },
{ 0, NULL, "one \"two three\"", 0, 2, { "one", "two three", }, "" },
{ 0, "two three", "one \"$var\"", 0, 2, { "one", "two three", }, IFS },
{ 0, "two three", "one $var", 0, 3, { "one", "two", "three", }, IFS },
{ 0, "two three", "one \"$var\"", 0, 2, { "one", "two three", }, "" },
{ 0, "two three", "one $var", 0, 2, { "one", "two three", }, "" },
/* The non-whitespace IFS char at the end delimits the second field
* but does NOT start a new field. */
{ 0, ":abc:", "$var", 0, 2, { "", "abc", }, ":" },
{ 0, NULL, "$(echo :abc:)", 0, 2, { "", "abc", }, ":" },
{ 0, NULL, "$(echo :abc:\\ )", 0, 2, { "", "abc", }, ": " },
{ 0, NULL, "$(echo :abc\\ )", 0, 2, { "", "abc", }, ": " },
{ 0, ":abc:", "$(echo $var)", 0, 2, { "", "abc", }, ":" },
{ 0, NULL, ":abc:", 0, 1, { ":abc:", }, ":" },
{ 0, NULL, "$(echo :abc:)def", 0, 3, { "", "abc", "def", }, ":" },
{ 0, NULL, "$(echo abc:de)f", 0, 2, { "abc", "def", }, ":" },
{ 0, NULL, "$(echo abc:de)f:ghi", 0, 2, { "abc", "def:ghi", }, ":" },
{ 0, NULL, "abc:d$(echo ef:ghi)", 0, 2, { "abc:def", "ghi", }, ":" },
{ 0, "abc:", "$var$(echo def:ghi)", 0, 3, { "abc", "def", "ghi", }, ":" },
{ 0, "abc:d", "$var$(echo ef:ghi)", 0, 3, { "abc", "def", "ghi", }, ":" },
{ 0, "def:ghi", "$(echo abc:)$var", 0, 3, { "abc", "def", "ghi", }, ":" },
{ 0, "ef:ghi", "$(echo abc:d)$var", 0, 3, { "abc", "def", "ghi", }, ":" },
/* Simple parameter expansion */
{ 0, "foo", "${var}", 0, 1, { "foo", }, IFS },
{ 0, "foo", "$var", 0, 1, { "foo", }, IFS },
{ 0, "foo", "\\\"$var\\\"", 0, 1, { "\"foo\"", }, IFS },
{ 0, "foo", "%$var%", 0, 1, { "%foo%", }, IFS },
{ 0, "foo", "-$var-", 0, 1, { "-foo-", }, IFS },
/* Simple quote removal */
{ 0, NULL, "\"quoted\"", 0, 1, { "quoted", }, IFS },
{ 0, "foo", "\"$var\"\"$var\"", 0, 1, { "foofoo", }, IFS },
{ 0, NULL, "'singly-quoted'", 0, 1, { "singly-quoted", }, IFS },
{ 0, NULL, "contin\\\nuation", 0, 1, { "continuation", }, IFS },
/* Simple command substitution */
{ 0, NULL, "$(echo hello)", 0, 1, { "hello", }, IFS },
{ 0, NULL, "$( (echo hello) )", 0, 1, { "hello", }, IFS },
{ 0, NULL, "$((echo hello);(echo there))", 0, 2, { "hello", "there", }, IFS },
{ 0, NULL, "`echo one two`", 0, 2, { "one", "two", }, IFS },
{ 0, NULL, "$(echo ')')", 0, 1, { ")" }, IFS },
{ 0, NULL, "$(echo hello; echo)", 0, 1, { "hello", }, IFS },
/* Simple arithmetic expansion */
{ 0, NULL, "$((1 + 1))", 0, 1, { "2", }, IFS },
{ 0, NULL, "$((2-3))", 0, 1, { "-1", }, IFS },
{ 0, NULL, "$((-1))", 0, 1, { "-1", }, IFS },
{ 0, NULL, "$[50+20]", 0, 1, { "70", }, IFS },
{ 0, NULL, "$(((2+3)*(4+5)))", 0, 1, { "45", }, IFS },
/* Advanced parameter expansion */
{ 0, NULL, "${var:-bar}", 0, 1, { "bar", }, IFS },
{ 0, NULL, "${var-bar}", 0, 1, { "bar", }, IFS },
{ 0, "", "${var:-bar}", 0, 1, { "bar", }, IFS },
{ 0, "foo", "${var:-bar}", 0, 1, { "foo", }, IFS },
{ 0, "", "${var-bar}", 0, 0, { NULL, }, IFS },
{ 0, NULL, "${var:=bar}", 0, 1, { "bar", }, IFS },
{ 0, NULL, "${var=bar}", 0, 1, { "bar", }, IFS },
{ 0, "", "${var:=bar}", 0, 1, { "bar", }, IFS },
{ 0, "foo", "${var:=bar}", 0, 1, { "foo", }, IFS },
{ 0, "", "${var=bar}", 0, 0, { NULL, }, IFS },
{ 0, "foo", "${var:?bar}", 0, 1, { "foo", }, IFS },
{ 0, NULL, "${var:+bar}", 0, 0, { NULL, }, IFS },
{ 0, NULL, "${var+bar}", 0, 0, { NULL, }, IFS },
{ 0, "", "${var:+bar}", 0, 0, { NULL, }, IFS },
{ 0, "foo", "${var:+bar}", 0, 1, { "bar", }, IFS },
{ 0, "", "${var+bar}", 0, 1, { "bar", }, IFS },
{ 0, "12345", "${#var}", 0, 1, { "5", }, IFS },
{ 0, NULL, "${var:-'}'}", 0, 1, { "}", }, IFS },
{ 0, NULL, "${var-}", 0, 0, { NULL }, IFS },
{ 0, "pizza", "${var#${var}}", 0, 0, { NULL }, IFS },
{ 0, "pepperoni", "${var%$(echo oni)}", 0, 1, { "pepper" }, IFS },
{ 0, "6pack", "${var#$((6))}", 0, 1, { "pack" }, IFS },
{ 0, "b*witched", "${var##b*}", 0, 0, { NULL }, IFS },
{ 0, "b*witched", "${var##\"b*\"}", 0, 1, { "witched" }, IFS },
{ 0, "banana", "${var%na*}", 0, 1, { "bana", }, IFS },
{ 0, "banana", "${var%%na*}", 0, 1, { "ba", }, IFS },
{ 0, "borabora-island", "${var#*bora}", 0, 1, { "bora-island", }, IFS },
{ 0, "borabora-island", "${var##*bora}", 0, 1, { "-island", }, IFS },
{ 0, "coconut", "${var##\\*co}", 0, 1, { "coconut", }, IFS },
{ 0, "100%", "${var%0%}", 0, 1, { "10" }, IFS },
/* Pathname expansion */
{ 0, NULL, "???", 0, 2, { "one", "two", }, IFS },
{ 0, NULL, "[ot]??", 0, 2, { "one", "two", }, IFS },
{ 0, NULL, "t*", 0, 2, { "three", "two", }, IFS },
{ 0, NULL, "\"t\"*", 0, 2, { "three", "two", }, IFS },
/* Nested constructs */
{ 0, "one two", "$var", 0, 2, { "one", "two", }, IFS },
{ 0, "one two three", "$var", 0, 3, { "one", "two", "three", }, IFS },
{ 0, " \tfoo\t\tbar ", "$var", 0, 2, { "foo", "bar", }, IFS },
{ 0, " red , white blue", "$var", 0, 3, { "red", "white", "blue", }, ", \n\t" },
{ 0, " red , white blue", "\"$var\"", 0, 1, { " red , white blue", }, ", \n\t" },
{ 0, NULL, "\"$(echo hello there)\"", 0, 1, { "hello there", }, IFS },
{ 0, NULL, "\"$(echo \"hello there\")\"", 0, 1, { "hello there", }, IFS },
{ 0, NULL, "${var=one two} \"$var\"", 0, 3, { "one", "two", "one two", }, IFS },
{ 0, "1", "$(( $(echo 3)+$var ))", 0, 1, { "4", }, IFS },
{ 0, NULL, "\"$(echo \"*\")\"", 0, 1, { "*", }, IFS },
{ 0, "foo", "*$var*", 0, 1, { "*foo*", }, IFS },
{ 0, "o thr", "*$var*", 0, 2, { "two", "three" }, IFS },
/* Different IFS values */
{ 0, "a b\tc\nd ", "$var", 0, 4, { "a", "b", "c", "d" }, NULL /* unset */ },
{ 0, "a b\tc d ", "$var", 0, 1, { "a b\tc d " }, "" /* `null' */ },
{ 0, "a,b c\n, d", "$var", 0, 3, { "a", "b c", " d" }, "\t\n," },
/* Other things that should succeed */
{ 0, NULL, "\\*\"|&;<>\"\\(\\)\\{\\}", 0, 1, { "*|&;<>(){}", }, IFS },
{ 0, "???", "$var", 0, 1, { "???", }, IFS },
{ 0, NULL, "$var", 0, 0, { NULL, }, IFS },
{ 0, NULL, "\"\\n\"", 0, 1, { "\\n", }, IFS },
{ 0, NULL, "", 0, 0, { NULL, }, IFS },
/* Things that should fail */
{ WRDE_BADCHAR, NULL, "new\nline", 0, 0, { NULL, }, "" /* \n not IFS */ },
{ WRDE_BADCHAR, NULL, "pipe|symbol", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "&ampersand", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "semi;colon", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "<greater", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "less>", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "(open-paren", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "close-paren)", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "{open-brace", 0, 0, { NULL, }, IFS },
{ WRDE_BADCHAR, NULL, "close-brace}", 0, 0, { NULL, }, IFS },
{ WRDE_CMDSUB, NULL, "$(ls)", WRDE_NOCMD, 0, { NULL, }, IFS },
{ WRDE_BADVAL, NULL, "$var", WRDE_UNDEF, 0, { NULL, }, IFS },
{ WRDE_BADVAL, NULL, "$9", WRDE_UNDEF, 0, { NULL, }, IFS },
{ WRDE_SYNTAX, NULL, "$[50+20))", 0, 0, { NULL, }, IFS },
{ WRDE_SYNTAX, NULL, "${%%noparam}", 0, 0, { NULL, }, IFS },
{ WRDE_SYNTAX, NULL, "${missing-brace", 0, 0, { NULL, }, IFS },
{ WRDE_SYNTAX, NULL, "$((2+))", 0, 0, { NULL, }, IFS },
{ WRDE_SYNTAX, NULL, "`", 0, 0, { NULL, }, IFS },
{ -1, NULL, NULL, 0, 0, { NULL, }, IFS },
};
static int testit (struct test_case_struct *tc);
static int tests;
void
command_line_test (const char *words)
{
wordexp_t we;
int i;
int retval = wordexp (words, &we, 0);
printf ("wordexp returned %d\n", retval);
for (i = 0; i < we.we_wordc; i++)
printf ("we_wordv[%d] = \"%s\"\n", i, we.we_wordv[i]);
}
int
main (int argc, char *argv[])
{
const char *globfile[] = { "one", "two", "three", NULL };
char tmpdir[32];
struct passwd *pw;
const char *cwd;
int test;
int fail = 0;
int i;
if (argc > 1)
{
command_line_test (argv[1]);
return 0;
}
cwd = getcwd (NULL, 0);
/* Set up arena for pathname expansion */
tmpnam (tmpdir);
if (mkdir (tmpdir, S_IRWXU) || chdir (tmpdir))
return -1;
else
{
int fd;
for (i = 0; globfile[i]; ++i)
if ((fd = creat (globfile[i], S_IRUSR | S_IWUSR)) == -1
|| close (fd))
return -1;
}
for (test = 0; test_case[test].retval != -1; test++)
if (testit (&test_case[test]))
++fail;
pw = getpwnam ("root");
if (pw != NULL)
{
struct test_case_struct ts;
ts.retval = 0;
ts.env = NULL;
ts.words = "~root";
ts.flags = 0;
ts.wordc = 1;
ts.wordv[0] = pw->pw_dir;
ts.ifs = IFS;
if (testit (&ts))
++fail;
}
puts ("tests completed, now cleaning up");
/* Clean up */
for (i = 0; globfile[i]; ++i)
remove (globfile[i]);
if (cwd == NULL)
cwd = "..";
chdir (cwd);
rmdir (tmpdir);
printf ("tests failed: %d\n", fail);
return fail != 0;
}
static int
testit (struct test_case_struct *tc)
{
int retval;
wordexp_t we;
int bzzzt = 0;
int i;
if (tc->env)
setenv ("var", tc->env, 1);
else
unsetenv ("var");
if (tc->ifs)
setenv ("IFS", tc->ifs, 1);
else
unsetenv ("IFS");
printf ("Test %d (%s): ", ++tests, tc->words);
retval = wordexp (tc->words, &we, tc->flags);
if (retval != tc->retval || (retval == 0 && we.we_wordc != tc->wordc))
bzzzt = 1;
else
for (i = 0; i < we.we_wordc; ++i)
if (strcmp (tc->wordv[i], we.we_wordv[i]) != 0)
{
bzzzt = 1;
break;
}
if (bzzzt)
{
printf ("FAILED\n");
printf ("Test words: <%s>, need retval %d, wordc %d\n",
tc->words, tc->retval, tc->wordc);
printf ("Got retval %d, wordc %d: ", retval, we.we_wordc);
for (i = 0; i < we.we_wordc; ++i)
printf ("<%s> ", we.we_wordv[i]);
printf ("\n");
}
else
printf ("OK\n");
if (retval == 0 || retval == WRDE_NOSPACE)
wordfree (&we);
return bzzzt;
}
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