1 /* $NetBSD: t_printf.c,v 1.8 2012/04/11 16:21:42 jruoho Exp $ */
2
3 /*-
4 * Copyright (c) 2010 The NetBSD Foundation, Inc.
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/types.h>
30 #include <sys/resource.h>
31 #include <atf-c.h>
32 #include <math.h>
33 #include <stdio.h>
34 #include <stdint.h>
35 #include <string.h>
36 #include <time.h>
37 #include <stdlib.h>
38
39 #ifndef __NetBSD__
40 #include <signal.h>
41 #endif
42
43 ATF_TC(snprintf_c99);
ATF_TC_HEAD(snprintf_c99,tc)44 ATF_TC_HEAD(snprintf_c99, tc)
45 {
46
47 atf_tc_set_md_var(tc, "descr",
48 "Test printf(3) C99 conformance (PR lib/22019)");
49 }
50
ATF_TC_BODY(snprintf_c99,tc)51 ATF_TC_BODY(snprintf_c99, tc)
52 {
53 char s[4];
54
55 (void)memset(s, '\0', sizeof(s));
56 (void)snprintf(s, sizeof(s), "%#.o", 0);
57 (void)printf("printf = %#.o\n", 0);
58 (void)fprintf(stderr, "snprintf = %s", s);
59
60 ATF_REQUIRE(strlen(s) == 1);
61 ATF_REQUIRE(s[0] == '0');
62 }
63
64 ATF_TC(snprintf_dotzero);
ATF_TC_HEAD(snprintf_dotzero,tc)65 ATF_TC_HEAD(snprintf_dotzero, tc)
66 {
67
68 atf_tc_set_md_var(tc, "descr",
69 "PR lib/32951: %%.0f formats (0.0,0.5] to \"0.\"");
70 }
71
ATF_TC_BODY(snprintf_dotzero,tc)72 ATF_TC_BODY(snprintf_dotzero, tc)
73 {
74 char s[4];
75
76 ATF_CHECK(snprintf(s, sizeof(s), "%.0f", 0.1) == 1);
77 ATF_REQUIRE_STREQ(s, "0");
78 }
79
80 ATF_TC(snprintf_posarg);
ATF_TC_HEAD(snprintf_posarg,tc)81 ATF_TC_HEAD(snprintf_posarg, tc)
82 {
83
84 atf_tc_set_md_var(tc, "descr", "test for positional arguments");
85 }
86
ATF_TC_BODY(snprintf_posarg,tc)87 ATF_TC_BODY(snprintf_posarg, tc)
88 {
89 char s[16];
90
91 ATF_CHECK(snprintf(s, sizeof(s), "%1$d", -23) == 3);
92 ATF_REQUIRE_STREQ(s, "-23");
93 }
94
95 ATF_TC(snprintf_posarg_width);
ATF_TC_HEAD(snprintf_posarg_width,tc)96 ATF_TC_HEAD(snprintf_posarg_width, tc)
97 {
98
99 atf_tc_set_md_var(tc, "descr", "test for positional arguments with "
100 "field width");
101 }
102
ATF_TC_BODY(snprintf_posarg_width,tc)103 ATF_TC_BODY(snprintf_posarg_width, tc)
104 {
105 char s[16];
106
107 ATF_CHECK(snprintf(s, sizeof(s), "%1$*2$d", -23, 4) == 4);
108 ATF_REQUIRE_STREQ(s, " -23");
109 }
110
111 ATF_TC(snprintf_posarg_error);
ATF_TC_HEAD(snprintf_posarg_error,tc)112 ATF_TC_HEAD(snprintf_posarg_error, tc)
113 {
114
115 atf_tc_set_md_var(tc, "descr", "test for positional arguments out "
116 "of bounds");
117 }
118
ATF_TC_BODY(snprintf_posarg_error,tc)119 ATF_TC_BODY(snprintf_posarg_error, tc)
120 {
121 char s[16], fmt[32];
122
123 #ifndef __NetBSD__
124 atf_tc_expect_signal(SIGSEGV,
125 "some non-NetBSD platforms including FreeBSD don't validate "
126 "negative size; testcase blows up with SIGSEGV");
127 #endif
128
129 snprintf(fmt, sizeof(fmt), "%%%zu$d", SIZE_MAX / sizeof(size_t));
130
131 ATF_CHECK(snprintf(s, sizeof(s), fmt, -23) == -1);
132 }
133
134 ATF_TC(snprintf_float);
ATF_TC_HEAD(snprintf_float,tc)135 ATF_TC_HEAD(snprintf_float, tc)
136 {
137
138 atf_tc_set_md_var(tc, "descr", "test that floating conversions don't"
139 " leak memory");
140 }
141
ATF_TC_BODY(snprintf_float,tc)142 ATF_TC_BODY(snprintf_float, tc)
143 {
144 union {
145 double d;
146 uint64_t bits;
147 } u;
148 uint32_t ul, uh;
149 time_t now;
150 char buf[1000];
151 struct rlimit rl;
152
153 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024;
154 ATF_CHECK(setrlimit(RLIMIT_AS, &rl) != -1);
155 rl.rlim_cur = rl.rlim_max = 1 * 1024 * 1024;
156 ATF_CHECK(setrlimit(RLIMIT_DATA, &rl) != -1);
157
158 time(&now);
159 srand(now);
160 for (size_t i = 0; i < 10000; i++) {
161 ul = rand();
162 uh = rand();
163 u.bits = (uint64_t)uh << 32 | ul;
164 ATF_CHECK(snprintf(buf, sizeof buf, " %.2f", u.d) != -1);
165 }
166 }
167
168 ATF_TC(sprintf_zeropad);
ATF_TC_HEAD(sprintf_zeropad,tc)169 ATF_TC_HEAD(sprintf_zeropad, tc)
170 {
171 atf_tc_set_md_var(tc, "descr",
172 "Test output format zero padding (PR lib/44113)");
173 }
174
ATF_TC_BODY(sprintf_zeropad,tc)175 ATF_TC_BODY(sprintf_zeropad, tc)
176 {
177 char str[1024];
178
179 ATF_CHECK(sprintf(str, "%010f", 0.0) == 10);
180 ATF_REQUIRE_STREQ(str, "000.000000");
181
182 /* ieeefp */
183 #ifndef __vax__
184 /* printf(3) should ignore zero padding for nan/inf */
185 ATF_CHECK(sprintf(str, "%010f", NAN) == 10);
186 ATF_REQUIRE_STREQ(str, " nan");
187 ATF_CHECK(sprintf(str, "%010f", INFINITY) == 10);
188 ATF_REQUIRE_STREQ(str, " inf");
189 #endif
190 }
191
ATF_TP_ADD_TCS(tp)192 ATF_TP_ADD_TCS(tp)
193 {
194
195 ATF_TP_ADD_TC(tp, snprintf_c99);
196 ATF_TP_ADD_TC(tp, snprintf_dotzero);
197 ATF_TP_ADD_TC(tp, snprintf_posarg);
198 ATF_TP_ADD_TC(tp, snprintf_posarg_width);
199 ATF_TP_ADD_TC(tp, snprintf_posarg_error);
200 ATF_TP_ADD_TC(tp, snprintf_float);
201 ATF_TP_ADD_TC(tp, sprintf_zeropad);
202
203 return atf_no_error();
204 }
205