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1 /*
2  * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms of version 2 of the GNU General Public License as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it would be useful, but
9  * WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11  *
12  * Further, this software is distributed without any warranty that it is
13  * free of the rightful claim of any third person regarding infringement
14  * or the like.  Any license provided herein, whether implied or
15  * otherwise, applies only to this software file.  Patent licenses, if
16  * any, provided herein do not apply to combinations of this program with
17  * other software, or any other product whatsoever.
18  *
19  * You should have received a copy of the GNU General Public License along
20  * with this program; if not, write the Free Software Foundation, Inc.,
21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22  *
23  */
24 
25 /*
26  * access(2) test for errno(s) EFAULT.
27  */
28 
29 #include <errno.h>
30 #include <string.h>
31 #include <signal.h>
32 
33 #include <unistd.h>
34 #include <sys/mman.h>
35 #include "test.h"
36 
37 static void setup(void);
38 static void cleanup(void);
39 
40 char *TCID = "access03";
41 int TST_TOTAL = 8;
42 
43 /* XXX (garrcoop): uh, this isn't a bad address yo. */
44 static void *low_addr;
45 static void *high_addr;
46 
47 #if !defined(UCLINUX)
48 
main(int ac,char ** av)49 int main(int ac, char **av)
50 {
51 	int lc;
52 
53 	tst_parse_opts(ac, av, NULL, NULL);
54 
55 	setup();
56 
57 #define TEST_ACCESS(addr, mode) \
58 { \
59 	if (access(low_addr, mode) == -1) { \
60 		if (errno == EFAULT) { \
61 			tst_resm(TPASS, \
62 			    "access(%p, %s) failed as expected with EFAULT", \
63 			    addr, #mode); \
64 		} else { \
65 			tst_resm(TFAIL|TERRNO, \
66 			    "access(%p, %s) failed unexpectedly; " \
67 			    "expected (EFAULT)", addr, #mode); \
68 		} \
69 	} else { \
70 		tst_resm(TFAIL, \
71 		    "access(%p, %s) succeeded unexpectedly", addr, #mode); \
72 	} \
73 }
74 
75 	for (lc = 0; TEST_LOOPING(lc); lc++) {
76 		tst_count = 0;
77 
78 		TEST_ACCESS(low_addr, R_OK);
79 		TEST_ACCESS(low_addr, W_OK);
80 		TEST_ACCESS(low_addr, X_OK);
81 		TEST_ACCESS(low_addr, F_OK);
82 
83 		TEST_ACCESS(high_addr, R_OK);
84 		TEST_ACCESS(high_addr, W_OK);
85 		TEST_ACCESS(high_addr, X_OK);
86 		TEST_ACCESS(high_addr, F_OK);
87 	}
88 
89 	cleanup();
90 	tst_exit();
91 }
92 
setup(void)93 static void setup(void)
94 {
95 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
96 	TEST_PAUSE;
97 
98 	low_addr = mmap(0, 1, PROT_NONE,
99 			MAP_PRIVATE_EXCEPT_UCLINUX | MAP_ANONYMOUS, 0, 0);
100 	if (low_addr == MAP_FAILED)
101 		tst_brkm(TBROK | TERRNO, NULL, "mmap failed");
102 
103 	high_addr = get_high_address();
104 	if (high_addr == NULL)
105 		tst_brkm(TBROK | TERRNO, NULL, "get_high_address failed");
106 	high_addr++;
107 
108 	tst_tmpdir();
109 }
110 
cleanup(void)111 static void cleanup(void)
112 {
113 	tst_rmdir();
114 }
115 
116 #else
117 
main(void)118 int main(void)
119 {
120 	tst_brkm(TCONF, NULL, "test not available on UCLINUX");
121 }
122 
123 #endif /* if !defined(UCLINUX) */
124