1 /*
2  * Check decoding of socketcall syscall.
3  *
4  * Copyright (c) 2016 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_socketcall
34 
35 # include <assert.h>
36 # include <stdio.h>
37 # include <unistd.h>
38 
39 # include "xlat.h"
40 # include "xlat/socketcalls.h"
41 
42 static const char *
43 xlookup_uint(const struct xlat *xlat, const unsigned int val)
44 {
45 	for (; xlat->str != NULL; xlat++)
46 		if (xlat->val == val)
47 			return xlat->str;
48 	return NULL;
49 }
50 
51 static const int sc_min = 1, sc_max = 20;
52 static void *efault;
53 
54 static void
55 test_socketcall(const int i, const void *const addr)
56 {
57 	const unsigned long call =
58 		(unsigned long) 0xfacefeed00000000ULL | (unsigned int) i;
59 
60 	long rc = syscall(__NR_socketcall, call, addr);
61 
62 	if (i < sc_min || i > sc_max) {
63 		printf("socketcall(%d, %p) = %ld %s (%m)\n",
64 		       (int) call, addr, rc, errno2name());
65 	} else if (addr == efault) {
66 		const char *const str = xlookup_uint(socketcalls, i);
67 		assert(str);
68 		printf("socketcall(%s, %p) = %ld %s (%m)\n",
69 		       str, addr, rc, errno2name());
70 	}
71 }
72 int
73 main(void)
74 {
75 	assert((unsigned) sc_min == socketcalls[0].val);
76 	assert((unsigned) sc_max == socketcalls[ARRAY_SIZE(socketcalls) - 2].val);
77 
78 	const unsigned long *const args = tail_alloc(sizeof(*args) * 6);
79 	efault = tail_alloc(1) + 1;
80 
81 	int i;
82 	for (i = sc_min - 3; i <= sc_max + 3; ++i) {
83 		test_socketcall(i, efault);
84 		test_socketcall(i, args);
85 	}
86 
87 	puts("+++ exited with 0 +++");
88 	return 0;
89 }
90 
91 #else
92 
93 SKIP_MAIN_UNDEFINED("__NR_socketcall")
94 
95 #endif
96