1/*-
2 * Copyright (c) 2009 David Schultz <das@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27/*
28 * Tests for basic and miscellaneous printf() formats.
29 */
30
31#include <sys/cdefs.h>
32__FBSDID("$FreeBSD: stable/10/lib/libc/tests/stdio/printbasic_test.c 291840 2015-12-05 04:17:40Z ngie $");
33
34#include <err.h>
35#include <limits.h>
36#include <locale.h>
37#include <stdio.h>
38#include <stdarg.h>
39#include <stddef.h>
40#include <stdint.h>
41#include <stdlib.h>
42#include <string.h>
43#include <wchar.h>
44
45#include <atf-c.h>
46
47#define S_UINT64MAX "18446744073709551615"
48#define S_UINT32MAX "4294967295"
49#define S_INT64MIN "-9223372036854775808"
50#define S_INT32MIN "-2147483648"
51
52#define S_SIZEMAX (SIZE_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
53#define S_ULONGMAX (ULONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
54#define S_ULLONGMAX (ULLONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX)
55
56static void
57smash_stack(void)
58{
59 static uint32_t junk = 0xdeadbeef;
60 uint32_t buf[512];
61 int i;
62
63 for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++)
64 buf[i] = junk;
65}
66
67#define testfmt(result, fmt, ...) \
68 _testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__)
69static void
70_testfmt(const char *result, const char *argstr, const char *fmt,...)
71{
72#define BUF 100
73 wchar_t ws[BUF], wfmt[BUF], wresult[BUF];
74 char s[BUF];
75 va_list ap, ap2;
76
77 va_start(ap, fmt);
78 va_copy(ap2, ap);
79 smash_stack();
80 vsnprintf(s, sizeof(s), fmt, ap);
81 if (strcmp(result, s) != 0) {
82 atf_tc_fail(
83 "printf(\"%s\", %s) ==> [%s], expected [%s]\n",
84 fmt, argstr, s, result);
85 }
86
87 smash_stack();
88 mbstowcs(ws, s, BUF - 1);
89 mbstowcs(wfmt, fmt, BUF - 1);
90 mbstowcs(wresult, result, BUF - 1);
91 vswprintf(ws, sizeof(ws) / sizeof(ws[0]), wfmt, ap2);
92 if (wcscmp(wresult, ws) != 0) {
93 atf_tc_fail(
94 "wprintf(\"%ls\", %s) ==> [%ls], expected [%ls]\n",
95 wfmt, argstr, ws, wresult);
96 }
97}
98
99ATF_TC_WITHOUT_HEAD(int_within_limits);
100ATF_TC_BODY(int_within_limits, tc)
101{
102
103 ATF_REQUIRE(setlocale(LC_NUMERIC, "C"));
104
105 /* The test requires these to be true. */
106 ATF_REQUIRE(UINTMAX_MAX == UINT64_MAX);
107 ATF_REQUIRE(UINT_MAX == UINT32_MAX);
108 ATF_REQUIRE(USHRT_MAX == 0xffff);
109 ATF_REQUIRE(UCHAR_MAX == 0xff);
110
111 /* Make sure we handle signed vs. unsigned args correctly. */
112 testfmt("-1", "%jd", (intmax_t)-1);
113 testfmt(S_UINT64MAX, "%ju", UINT64_MAX);
114
115 testfmt("-1", "%td", (ptrdiff_t)-1);
116 testfmt(S_SIZEMAX, "%tu", (size_t)-1);
117
118 testfmt("-1", "%zd", (ssize_t)-1);
119 testfmt(S_SIZEMAX, "%zu", (ssize_t)-1);
120
121 testfmt("-1", "%ld", (long)-1);
122 testfmt(S_ULONGMAX, "%lu", ULONG_MAX);
123
124 testfmt("-1", "%lld", (long long)-1);
125 testfmt(S_ULONGMAX, "%lu", ULLONG_MAX);
126
127 testfmt("-1", "%d", -1);
128 testfmt(S_UINT32MAX, "%lu", UINT32_MAX);
129
130 testfmt("-1", "%hd", -1);
131 testfmt("65535", "%hu", USHRT_MAX);
132
133 testfmt("-1", "%hhd", -1);
134 testfmt("255", "%hhu", UCHAR_MAX);
135}
136
137ATF_TC_WITHOUT_HEAD(int_limits);
138ATF_TC_BODY(int_limits, tc)
139{
140
141 ATF_REQUIRE(setlocale(LC_NUMERIC, "C"));
142
143 /*
144 * Check that printing the largest negative number does not cause
145 * overflow when it is negated.
146 */
147 testfmt(S_INT32MIN, "%d", INT_MIN);
148 testfmt(S_INT64MIN, "%jd", INTMAX_MIN);
149}
150
151ATF_TP_ADD_TCS(tp)
152{
153
154 ATF_TP_ADD_TC(tp, int_within_limits);
155 ATF_TP_ADD_TC(tp, int_limits);
156
157 return (atf_no_error());
158}