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Diffstat (limited to 'posix/wordexp-test.c')
| -rw-r--r-- | posix/wordexp-test.c | 560 |
1 files changed, 0 insertions, 560 deletions
diff --git a/posix/wordexp-test.c b/posix/wordexp-test.c deleted file mode 100644 index 17ae812346..0000000000 --- a/posix/wordexp-test.c +++ /dev/null @@ -1,560 +0,0 @@ -/* Copyright (C) 1997-2017 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 Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sys/stat.h> -#include <sys/types.h> -#include <sys/mman.h> -#include <fcntl.h> -#include <unistd.h> -#include <pwd.h> -#include <stdio.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <wordexp.h> -#include <libc-pointer-arith.h> - -#define IFS " \n\t" - -extern void *__dso_handle __attribute__ ((__weak__, __visibility__ ("hidden"))); -extern int __register_atfork (void (*) (void), void (*) (void), void (*) (void), void *); - -static int __app_register_atfork (void (*prepare) (void), void (*parent) (void), void (*child) (void)) -{ - return __register_atfork (prepare, parent, child, - &__dso_handle == NULL ? NULL : __dso_handle); -} - -/* Number of forks seen. */ -static int registered_forks; - -/* For each fork increment the fork count. */ -static void -register_fork (void) -{ - registered_forks++; -} - -struct test_case_struct -{ - int retval; - const char *env; - const char *words; - int flags; - size_t 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 }, - { 0, NULL, "explicit ''", 0, 2, { "explicit", "", }, IFS }, - { 0, NULL, "explicit \"\"", 0, 2, { "explicit", "", }, IFS }, - { 0, NULL, "explicit ``", 0, 1, { "explicit", }, 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, "$(echo hello; echo)", 0, 1, { "hello", }, IFS }, - { 0, NULL, "a$(echo b)c", 0, 1, { "abc", }, 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, "$(((2+3)*(4+5)))", 0, 1, { "45", }, IFS }, - { 0, NULL, "$((010))", 0, 1, { "8" }, IFS }, - { 0, NULL, "$((0x10))", 0, 1, { "16" }, IFS }, - { 0, NULL, "$((010+0x10))", 0, 1, { "24" }, IFS }, - { 0, NULL, "$((-010+0x10))", 0, 1, { "8" }, IFS }, - { 0, NULL, "$((-0x10+010))", 0, 1, { "-8" }, 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, "\"$(echo \"*\")\"", 0, 1, { "*", }, IFS }, - { 0, NULL, "\"a\n\n$(echo)b\"", 0, 1, { "a\n\nb", }, 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, "$var", 0, 0, { NULL, }, IFS }, - { 0, NULL, "\"\\n\"", 0, 1, { "\\n", }, IFS }, - { 0, NULL, "", 0, 0, { NULL, }, IFS }, - - /* Flags not already covered (testit() has special handling for these) */ - { 0, NULL, "one two", WRDE_DOOFFS, 2, { "one", "two", }, IFS }, - { 0, NULL, "appended", WRDE_APPEND, 3, { "pre1", "pre2", "appended", }, IFS }, - { 0, NULL, "appended", WRDE_DOOFFS|WRDE_APPEND, 3, { "pre1", "pre2", "appended", }, IFS }, - - /* Things that should fail */ - { WRDE_BADCHAR, NULL, "new\nline", 0, 0, { NULL, }, "" /* \n not IFS */ }, - { WRDE_BADCHAR, NULL, "pipe|symbol", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "&ersand", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "semi;colon", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "<greater", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "less>", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "(open-paren", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "close-paren)", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "{open-brace", 0, 0, { NULL, }, IFS }, - { WRDE_BADCHAR, NULL, "close-brace}", 0, 0, { NULL, }, IFS }, - { WRDE_CMDSUB, NULL, "$(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, "$(for i in)", 0, 0, { NULL, }, IFS }, - { WRDE_SYNTAX, NULL, "$((2+))", 0, 0, { NULL, }, IFS }, - { WRDE_SYNTAX, NULL, "`", 0, 0, { NULL, }, IFS }, - { WRDE_SYNTAX, NULL, "$((010+4+))", 0, 0, { NULL }, IFS }, - /* Test for CVE-2014-7817. We test 3 combinations of command - substitution inside an arithmetic expression to make sure that - no commands are executed and error is returned. */ - { WRDE_CMDSUB, NULL, "$((`echo 1`))", WRDE_NOCMD, 0, { NULL, }, IFS }, - { WRDE_CMDSUB, NULL, "$((1+`echo 1`))", WRDE_NOCMD, 0, { NULL, }, IFS }, - { WRDE_CMDSUB, NULL, "$((1+$((`echo 1`))))", WRDE_NOCMD, 0, { NULL, }, IFS }, - - { WRDE_SYNTAX, NULL, "`\\", 0, 0, { NULL, }, IFS }, /* BZ 18042 */ - { WRDE_SYNTAX, NULL, "${", 0, 0, { NULL, }, IFS }, /* BZ 18043 */ - { WRDE_SYNTAX, NULL, "L${a:", 0, 0, { NULL, }, IFS }, /* BZ 18043#c4 */ - { WRDE_SYNTAX, NULL, "$[1/0]", WRDE_NOCMD, 0, {NULL, }, IFS }, /* BZ 18100 */ - - { -1, NULL, NULL, 0, 0, { NULL, }, IFS }, - }; - -static int testit (struct test_case_struct *tc); -static int tests; - -static 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; - struct test_case_struct ts; - - 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; - } - - /* If we are not allowed to do command substitution, we install - fork handlers to verify that no forks happened. No forks should - happen at all if command substitution is disabled. */ - if (__app_register_atfork (register_fork, NULL, NULL) != 0) - { - printf ("Failed to register fork handler.\n"); - return -1; - } - - for (test = 0; test_case[test].retval != -1; test++) - if (testit (&test_case[test])) - ++fail; - - /* Tilde-expansion tests. */ - pw = getpwnam ("root"); - if (pw != NULL) - { - 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; - - ts.retval = 0; - ts.env = pw->pw_dir; - ts.words = "${var#~root}x"; - ts.flags = 0; - ts.wordc = 1; - ts.wordv[0] = "x"; - ts.ifs = IFS; - - if (testit (&ts)) - ++fail; - } - - /* "~" expands to value of $HOME when HOME is set */ - - setenv ("HOME", "/dummy/home", 1); - ts.retval = 0; - ts.env = NULL; - ts.words = "~ ~/foo"; - ts.flags = 0; - ts.wordc = 2; - ts.wordv[0] = "/dummy/home"; - ts.wordv[1] = "/dummy/home/foo"; - ts.ifs = IFS; - - if (testit (&ts)) - ++fail; - - /* "~" expands to home dir from passwd file if HOME is not set */ - - pw = getpwuid (getuid ()); - if (pw != NULL) - { - unsetenv ("HOME"); - ts.retval = 0; - ts.env = NULL; - ts.words = "~"; - ts.flags = 0; - ts.wordc = 1; - ts.wordv[0] = pw->pw_dir; - ts.ifs = IFS; - - if (testit (&ts)) - ++fail; - } - - /* Integer overflow in division. */ - { - static const char *const numbers[] = { - "0", - "1", - "65536", - "2147483648", - "4294967296" - "9223372036854775808", - "18446744073709551616", - "170141183460469231731687303715884105728", - "340282366920938463463374607431768211456", - NULL - }; - - for (const char *const *num = numbers; *num; ++num) - { - wordexp_t p; - char pattern[256]; - snprintf (pattern, sizeof (pattern), "$[(-%s)/(-1)]", *num); - int ret = wordexp (pattern, &p, WRDE_NOCMD); - if (ret == 0) - { - if (p.we_wordc != 1 || strcmp (p.we_wordv[0], *num) != 0) - { - printf ("Integer overflow for \"%s\" failed", pattern); - ++fail; - } - wordfree (&p); - } - else if (ret != WRDE_SYNTAX) - { - printf ("Integer overflow for \"%s\" failed with %d", - pattern, ret); - ++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 const char * -at_page_end (const char *words) -{ - const int pagesize = getpagesize (); - char *start = mmap (0, 2 * pagesize, PROT_READ|PROT_WRITE, - MAP_PRIVATE|MAP_ANONYMOUS, -1, 0); - - if (start == MAP_FAILED) - return start; - - if (mprotect (start + pagesize, pagesize, PROT_NONE)) - { - munmap (start, 2 * pagesize); - return MAP_FAILED; - } - - /* Includes terminating NUL. */ - const size_t words_size = strlen (words) + 1; - char *words_start = start + pagesize - words_size; - memcpy (words_start, words, words_size); - - return words_start; -} - -static int -testit (struct test_case_struct *tc) -{ - int retval; - wordexp_t we, sav_we; - char *dummy; - int bzzzt = 0; - int start_offs = 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"); - - sav_we.we_wordc = 99; - sav_we.we_wordv = &dummy; - sav_we.we_offs = 3; - we = sav_we; - - printf ("Test %d (%s): ", ++tests, tc->words); - fflush (NULL); - const char *words = at_page_end (tc->words); - - if (tc->flags & WRDE_NOCMD) - registered_forks = 0; - - if (tc->flags & WRDE_APPEND) - { - /* initial wordexp() call, to be appended to */ - if (wordexp ("pre1 pre2", &we, tc->flags & ~WRDE_APPEND) != 0) - { - printf ("FAILED setup\n"); - return 1; - } - } - retval = wordexp (words, &we, tc->flags); - - if ((tc->flags & WRDE_NOCMD) - && (registered_forks > 0)) - { - printf ("FAILED fork called for WRDE_NOCMD\n"); - return 1; - } - - if (tc->flags & WRDE_DOOFFS) - start_offs = sav_we.we_offs; - - if (retval != tc->retval || (retval == 0 && we.we_wordc != tc->wordc)) - bzzzt = 1; - else if (retval == 0) - { - for (i = 0; i < start_offs; ++i) - if (we.we_wordv[i] != NULL) - { - bzzzt = 1; - break; - } - - for (i = 0; i < we.we_wordc; ++i) - if (we.we_wordv[i+start_offs] == NULL || - strcmp (tc->wordv[i], we.we_wordv[i+start_offs]) != 0) - { - bzzzt = 1; - break; - } - } - - if (bzzzt) - { - printf ("FAILED\n"); - printf ("Test words: <%s>, need retval %d, wordc %Zd\n", - tc->words, tc->retval, tc->wordc); - if (start_offs != 0) - printf ("(preceded by %d NULLs)\n", start_offs); - printf ("Got retval %d, wordc %Zd: ", retval, we.we_wordc); - if (retval == 0 || retval == WRDE_NOSPACE) - { - for (i = 0; i < we.we_wordc + start_offs; ++i) - if (we.we_wordv[i] == NULL) - printf ("NULL "); - else - printf ("<%s> ", we.we_wordv[i]); - } - printf ("\n"); - } - else if (retval != 0 && retval != WRDE_NOSPACE && - (we.we_wordc != sav_we.we_wordc || - we.we_wordv != sav_we.we_wordv || - we.we_offs != sav_we.we_offs)) - { - bzzzt = 1; - printf ("FAILED to restore wordexp_t members\n"); - } - else - printf ("OK\n"); - - if (retval == 0 || retval == WRDE_NOSPACE) - wordfree (&we); - - const int page_size = getpagesize (); - char *start = (char *) PTR_ALIGN_DOWN (words, page_size); - - if (munmap (start, 2 * page_size) != 0) - return 1; - - fflush (NULL); - return bzzzt; -} |