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1 /*
2  * Check decoding of futimesat syscall.
3  *
4  * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. The name of the author may not be used to endorse or promote products
16  *    derived from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29 
30 #include "tests.h"
31 #include <asm/unistd.h>
32 
33 #ifdef __NR_futimesat
34 
35 # include <stdint.h>
36 # include <stdio.h>
37 # include <sys/time.h>
38 # include <unistd.h>
39 
40 static void
print_tv(const struct timeval * tv)41 print_tv(const struct timeval *tv)
42 {
43 	printf("{tv_sec=%lld, tv_usec=%llu}",
44 	       (long long) tv->tv_sec,
45 	       zero_extend_signed_to_ull(tv->tv_usec));
46 	print_time_t_usec(tv->tv_sec,
47 			  zero_extend_signed_to_ull(tv->tv_usec), 1);
48 }
49 
50 static const char *errstr;
51 
52 static long
k_futimesat(const kernel_ulong_t dirfd,const kernel_ulong_t pathname,const kernel_ulong_t times)53 k_futimesat(const kernel_ulong_t dirfd,
54 	    const kernel_ulong_t pathname,
55 	    const kernel_ulong_t times)
56 {
57 	long rc = syscall(__NR_futimesat, dirfd, pathname, times);
58 	errstr = sprintrc(rc);
59 	return rc;
60 }
61 
62 int
main(void)63 main(void)
64 {
65 	static const kernel_ulong_t bogus_fd =
66 		(kernel_ulong_t) 0xbadfaceddeadbeaf;
67 	static const kernel_ulong_t kfdcwd =
68 		(kernel_ulong_t) 0xdefaced00000000 | -100U;
69 	static const char proto_fname[] = "futimesat_sample";
70 	static const char qname[] = "\"futimesat_sample\"";
71 
72 	char *const fname = tail_memdup(proto_fname, sizeof(proto_fname));
73 	const kernel_ulong_t kfname = (uintptr_t) fname;
74 	struct timeval *const tv = tail_alloc(sizeof(*tv) * 2);
75 
76 	(void) close(0);
77 
78 	/* dirfd */
79 	k_futimesat(0, kfname, 0);
80 	printf("futimesat(0, %s, NULL) = %s\n", qname, errstr);
81 
82 	k_futimesat(bogus_fd, kfname, 0);
83 	printf("futimesat(%d, %s, NULL) = %s\n", (int) bogus_fd, qname, errstr);
84 
85 	k_futimesat(-100U, kfname, 0);
86 	printf("futimesat(AT_FDCWD, %s, NULL) = %s\n", qname, errstr);
87 
88 	k_futimesat(kfdcwd, kfname, 0);
89 	printf("futimesat(AT_FDCWD, %s, NULL) = %s\n", qname, errstr);
90 
91 	/* pathname */
92 	k_futimesat(kfdcwd, 0, 0);
93 	printf("futimesat(AT_FDCWD, NULL, NULL) = %s\n", errstr);
94 
95 	k_futimesat(kfdcwd, kfname + sizeof(proto_fname) - 1, 0);
96 	printf("futimesat(AT_FDCWD, \"\", NULL) = %s\n", errstr);
97 
98 	fname[sizeof(proto_fname) - 1] = '+';
99 	k_futimesat(kfdcwd, kfname, 0);
100 	fname[sizeof(proto_fname) - 1] = '\0';
101 	printf("futimesat(AT_FDCWD, %p, NULL) = %s\n", fname, errstr);
102 
103 	if (F8ILL_KULONG_SUPPORTED) {
104 		k_futimesat(kfdcwd, f8ill_ptr_to_kulong(fname), 0);
105 		printf("futimesat(AT_FDCWD, %#jx, NULL) = %s\n",
106 		       (uintmax_t) f8ill_ptr_to_kulong(fname), errstr);
107 	}
108 
109 	/* times */
110 	k_futimesat(kfdcwd, kfname, (uintptr_t) (tv + 1));
111 	printf("futimesat(AT_FDCWD, %s, %p) = %s\n",
112 	       qname, tv + 1, errstr);
113 
114 	k_futimesat(kfdcwd, kfname, (uintptr_t) (tv + 2));
115 	printf("futimesat(AT_FDCWD, %s, %p) = %s\n",
116 	       qname, tv + 2, errstr);
117 
118 	tv[0].tv_sec = 0xdeadbeefU;
119 	tv[0].tv_usec = 0xfacefeedU;
120 	tv[1].tv_sec = (time_t) 0xcafef00ddeadbeefLL;
121 	tv[1].tv_usec = (long) 0xbadc0dedfacefeedLL;
122 
123 	k_futimesat(kfdcwd, kfname, (uintptr_t) tv);
124 	printf("futimesat(AT_FDCWD, %s, [", qname);
125 	print_tv(&tv[0]);
126 	printf(", ");
127 	print_tv(&tv[1]);
128 	printf("]) = %s\n", errstr);
129 
130 	tv[0].tv_sec = 1492356708;
131 	tv[0].tv_usec = 567891234;
132 	tv[1].tv_sec = 1492357086;
133 	tv[1].tv_usec = 678902345;
134 
135 	k_futimesat(kfdcwd, kfname, (uintptr_t) tv);
136 	printf("futimesat(AT_FDCWD, %s, [", qname);
137 	print_tv(&tv[0]);
138 	printf(", ");
139 	print_tv(&tv[1]);
140 	printf("]) = %s\n", errstr);
141 
142 	tv[0].tv_usec = 567891;
143 	tv[1].tv_usec = 678902;
144 
145 	k_futimesat(kfdcwd, kfname, (uintptr_t) tv);
146 	printf("futimesat(AT_FDCWD, %s, [", qname);
147 	print_tv(&tv[0]);
148 	printf(", ");
149 	print_tv(&tv[1]);
150 	printf("]) = %s\n", errstr);
151 
152 	if (F8ILL_KULONG_SUPPORTED) {
153 		k_futimesat(kfdcwd, kfname, f8ill_ptr_to_kulong(tv));
154 		printf("futimesat(AT_FDCWD, %s, %#jx) = %s\n",
155 		       qname, (uintmax_t) f8ill_ptr_to_kulong(tv), errstr);
156 	}
157 
158 	puts("+++ exited with 0 +++");
159 	return 0;
160 }
161 
162 #else
163 
164 SKIP_MAIN_UNDEFINED("__NR_futimesat")
165 
166 #endif
167