Home | History | Annotate | Download | only in llistxattr 
      1 /*
      2 * Copyright (c) 2016 Fujitsu Ltd.
      3 * Author: Xiao Yang <yangx.jy (at) cn.fujitsu.com>
      4 *
      5 * This program is free software; you can redistribute it and/or modify it
      6 * under the terms of version 2 of the GNU General Public License as
      7 * published by the Free Software Foundation.
      8 *
      9 * This program is distributed in the hope that it would be useful, but
     10 * WITHOUT ANY WARRANTY; without even the implied warranty of
     11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
     12 *
     13 * You should have received a copy of the GNU General Public License
     14 * alone with this program.
     15 */
     16 
     17 /*
     18 * Test Name: llistxattr02
     19 *
     20 * Description:
     21 * 1) llistxattr(2) fails if the size of the list buffer is too small
     22 * to hold the result.
     23 * 2) llistxattr(2) fails if path is an empty string.
     24 * 3) llistxattr(2) fails when attempted to read from a invalid address.
     25 * 4) llistxattr(2) fails if path is longer than allowed.
     26 *
     27 * Expected Result:
     28 * 1) llistxattr(2) should return -1 and set errno to ERANGE.
     29 * 2) llistxattr(2) should return -1 and set errno to ENOENT.
     30 * 3) llistxattr(2) should return -1 and set errno to EFAULT.
     31 * 4) llistxattr(2) should return -1 and set errno to ENAMETOOLONG.
     32 */
     33 
     34 #include "config.h"
     35 #include <errno.h>
     36 #include <sys/types.h>
     37 
     38 #ifdef HAVE_SYS_XATTR_H
     39 # include <sys/xattr.h>
     40 #endif
     41 
     42 #include "tst_test.h"
     43 
     44 #ifdef HAVE_SYS_XATTR_H
     45 
     46 #define SECURITY_KEY    "security.ltptest"
     47 #define VALUE           "test"
     48 #define VALUE_SIZE      (sizeof(VALUE) - 1)
     49 #define TESTFILE        "testfile"
     50 #define SYMLINK         "symlink"
     51 
     52 static char longpathname[PATH_MAX + 2];
     53 
     54 static struct test_case {
     55 	const char *path;
     56 	size_t size;
     57 	int exp_err;
     58 } tc[] = {
     59 	{SYMLINK, 1, ERANGE},
     60 	{"", 20, ENOENT},
     61 	{(char *)-1, 20, EFAULT},
     62 	{longpathname, 20, ENAMETOOLONG}
     63 };
     64 
     65 static void verify_llistxattr(unsigned int n)
     66 {
     67 	struct test_case *t = tc + n;
     68 	char buf[t->size];
     69 
     70 	TEST(llistxattr(t->path, buf, sizeof(buf)));
     71 	if (TST_RET != -1) {
     72 		tst_res(TFAIL,
     73 			"llistxattr() succeeded unexpectedly (returned %ld)",
     74 			TST_RET);
     75 		return;
     76 	}
     77 
     78 	if (TST_ERR != t->exp_err) {
     79 		tst_res(TFAIL | TTERRNO, "llistxattr() failed "
     80 			 "unexpectedlly, expected %s",
     81 			 tst_strerrno(t->exp_err));
     82 	} else {
     83 		tst_res(TPASS | TTERRNO,
     84 			 "llistxattr() failed as expected");
     85 	}
     86 }
     87 
     88 static void setup(void)
     89 {
     90 	SAFE_TOUCH(TESTFILE, 0644, NULL);
     91 
     92 	SAFE_SYMLINK(TESTFILE, SYMLINK);
     93 
     94 	SAFE_LSETXATTR(SYMLINK, SECURITY_KEY, VALUE, VALUE_SIZE, XATTR_CREATE);
     95 
     96 	memset(longpathname, 'a', sizeof(longpathname) - 1);
     97 }
     98 
     99 static struct tst_test test = {
    100 	.needs_tmpdir = 1,
    101 	.needs_root = 1,
    102 	.test = verify_llistxattr,
    103 	.tcnt = ARRAY_SIZE(tc),
    104 	.setup = setup,
    105 };
    106 
    107 #else /* HAVE_SYS_XATTR_H */
    108 	TST_TEST_TCONF("<sys/xattr.h> does not exist.");
    109 #endif
    110