1 /*	$NetBSD: snprintf-test.c,v 1.1.1.1 2011/04/13 18:15:43 elric Exp $	*/
2 
3 /*
4  * Copyright (c) 2000 - 2001 Kungliga Tekniska Högskolan
5  * (Royal Institute of Technology, Stockholm, Sweden).
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * 3. Neither the name of KTH nor the names of its contributors may be
20  *    used to endorse or promote products derived from this software without
21  *    specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
24  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
34 
35 #include <config.h>
36 #include <krb5/roken.h>
37 #include <limits.h>
38 
39 static int
try(const char * format,...)40 try (const char *format, ...)
41 {
42     int ret;
43     va_list ap;
44     char buf1[256], buf2[256];
45 
46     va_start (ap, format);
47     ret = rk_vsnprintf (buf1, sizeof(buf1), format, ap);
48     if (ret >= sizeof(buf1))
49 	errx (1, "increase buf and try again");
50     va_end (ap);
51     va_start (ap, format);
52     vsprintf (buf2, format, ap);
53     ret = strcmp (buf1, buf2);
54     if (ret)
55 	printf ("failed: format = \"%s\", \"%s\" != \"%s\"\n",
56 		format, buf1, buf2);
57     va_end (ap);
58     return ret;
59 }
60 
61 static int
cmp_with_sprintf_int(void)62 cmp_with_sprintf_int (void)
63 {
64     int tot = 0;
65     int int_values[] = {INT_MIN, -17, -1, 0, 1, 17, 4711, 65535, INT_MAX};
66     int i;
67 
68     for (i = 0; i < sizeof(int_values) / sizeof(int_values[0]); ++i) {
69 	tot += try ("%d", int_values[i]);
70 	tot += try ("%x", int_values[i]);
71 	tot += try ("%X", int_values[i]);
72 	tot += try ("%o", int_values[i]);
73 	tot += try ("%#x", int_values[i]);
74 	tot += try ("%#X", int_values[i]);
75 	tot += try ("%#o", int_values[i]);
76 	tot += try ("%10d", int_values[i]);
77 	tot += try ("%10x", int_values[i]);
78 	tot += try ("%10X", int_values[i]);
79 	tot += try ("%10o", int_values[i]);
80 	tot += try ("%#10x", int_values[i]);
81 	tot += try ("%#10X", int_values[i]);
82 	tot += try ("%#10o", int_values[i]);
83 	tot += try ("%-10d", int_values[i]);
84 	tot += try ("%-10x", int_values[i]);
85 	tot += try ("%-10X", int_values[i]);
86 	tot += try ("%-10o", int_values[i]);
87 	tot += try ("%-#10x", int_values[i]);
88 	tot += try ("%-#10X", int_values[i]);
89 	tot += try ("%-#10o", int_values[i]);
90     }
91     return tot;
92 }
93 
94 static int
cmp_with_sprintf_long(void)95 cmp_with_sprintf_long (void)
96 {
97     int tot = 0;
98     long long_values[] = {LONG_MIN, -17, -1, 0, 1, 17, 4711, 65535, LONG_MAX};
99     int i;
100 
101     for (i = 0; i < sizeof(long_values) / sizeof(long_values[0]); ++i) {
102 	tot += try ("%ld", long_values[i]);
103 	tot += try ("%lx", long_values[i]);
104 	tot += try ("%lX", long_values[i]);
105 	tot += try ("%lo", long_values[i]);
106 	tot += try ("%#lx", long_values[i]);
107 	tot += try ("%#lX", long_values[i]);
108 	tot += try ("%#lo", long_values[i]);
109 	tot += try ("%10ld", long_values[i]);
110 	tot += try ("%10lx", long_values[i]);
111 	tot += try ("%10lX", long_values[i]);
112 	tot += try ("%10lo", long_values[i]);
113 	tot += try ("%#10lx", long_values[i]);
114 	tot += try ("%#10lX", long_values[i]);
115 	tot += try ("%#10lo", long_values[i]);
116 	tot += try ("%-10ld", long_values[i]);
117 	tot += try ("%-10lx", long_values[i]);
118 	tot += try ("%-10lX", long_values[i]);
119 	tot += try ("%-10lo", long_values[i]);
120 	tot += try ("%-#10lx", long_values[i]);
121 	tot += try ("%-#10lX", long_values[i]);
122 	tot += try ("%-#10lo", long_values[i]);
123     }
124     return tot;
125 }
126 
127 #ifdef HAVE_LONG_LONG
128 
129 /* XXX doesn't work as expected on lp64 platforms with sizeof(long
130  * long) == sizeof(long) */
131 
132 static int
cmp_with_sprintf_long_long(void)133 cmp_with_sprintf_long_long (void)
134 {
135     int tot = 0;
136     long long long_long_values[] = {
137 	((long long)LONG_MIN) -1, LONG_MIN, -17, -1,
138 	0,
139 	1, 17, 4711, 65535, LONG_MAX, ((long long)LONG_MAX) + 1};
140     int i;
141 
142     for (i = 0; i < sizeof(long_long_values) / sizeof(long_long_values[0]); ++i) {
143 	tot += try ("%lld", long_long_values[i]);
144 	tot += try ("%llx", long_long_values[i]);
145 	tot += try ("%llX", long_long_values[i]);
146 	tot += try ("%llo", long_long_values[i]);
147 	tot += try ("%#llx", long_long_values[i]);
148 	tot += try ("%#llX", long_long_values[i]);
149 	tot += try ("%#llo", long_long_values[i]);
150 	tot += try ("%10lld", long_long_values[i]);
151 	tot += try ("%10llx", long_long_values[i]);
152 	tot += try ("%10llX", long_long_values[i]);
153 	tot += try ("%10llo", long_long_values[i]);
154 	tot += try ("%#10llx", long_long_values[i]);
155 	tot += try ("%#10llX", long_long_values[i]);
156 	tot += try ("%#10llo", long_long_values[i]);
157 	tot += try ("%-10lld", long_long_values[i]);
158 	tot += try ("%-10llx", long_long_values[i]);
159 	tot += try ("%-10llX", long_long_values[i]);
160 	tot += try ("%-10llo", long_long_values[i]);
161 	tot += try ("%-#10llx", long_long_values[i]);
162 	tot += try ("%-#10llX", long_long_values[i]);
163 	tot += try ("%-#10llo", long_long_values[i]);
164     }
165     return tot;
166 }
167 
168 #endif
169 
170 #if 0
171 static int
172 cmp_with_sprintf_float (void)
173 {
174     int tot = 0;
175     double double_values[] = {-99999, -999, -17.4, -4.3, -3.0, -1.5, -1,
176 			      0, 0.1, 0.2342374852, 0.2340007,
177 			      3.1415926, 14.7845, 34.24758, 9999, 9999999};
178     int i;
179 
180     for (i = 0; i < sizeof(double_values) / sizeof(double_values[0]); ++i) {
181 	tot += try ("%f", double_values[i]);
182 	tot += try ("%10f", double_values[i]);
183 	tot += try ("%.2f", double_values[i]);
184 	tot += try ("%7.0f", double_values[i]);
185 	tot += try ("%5.2f", double_values[i]);
186 	tot += try ("%0f", double_values[i]);
187 	tot += try ("%#f", double_values[i]);
188 	tot += try ("%e", double_values[i]);
189 	tot += try ("%10e", double_values[i]);
190 	tot += try ("%.2e", double_values[i]);
191 	tot += try ("%7.0e", double_values[i]);
192 	tot += try ("%5.2e", double_values[i]);
193 	tot += try ("%0e", double_values[i]);
194 	tot += try ("%#e", double_values[i]);
195 	tot += try ("%E", double_values[i]);
196 	tot += try ("%10E", double_values[i]);
197 	tot += try ("%.2E", double_values[i]);
198 	tot += try ("%7.0E", double_values[i]);
199 	tot += try ("%5.2E", double_values[i]);
200 	tot += try ("%0E", double_values[i]);
201 	tot += try ("%#E", double_values[i]);
202 	tot += try ("%g", double_values[i]);
203 	tot += try ("%10g", double_values[i]);
204 	tot += try ("%.2g", double_values[i]);
205 	tot += try ("%7.0g", double_values[i]);
206 	tot += try ("%5.2g", double_values[i]);
207 	tot += try ("%0g", double_values[i]);
208 	tot += try ("%#g", double_values[i]);
209 	tot += try ("%G", double_values[i]);
210 	tot += try ("%10G", double_values[i]);
211 	tot += try ("%.2G", double_values[i]);
212 	tot += try ("%7.0G", double_values[i]);
213 	tot += try ("%5.2G", double_values[i]);
214 	tot += try ("%0G", double_values[i]);
215 	tot += try ("%#G", double_values[i]);
216     }
217     return tot;
218 }
219 #endif
220 
221 static int
test_null(void)222 test_null (void)
223 {
224     return rk_snprintf (NULL, 0, "foo") != 3;
225 }
226 
227 static int
test_sizet(void)228 test_sizet (void)
229 {
230     int tot = 0;
231     size_t sizet_values[] = { 0, 1, 2, 200, 4294967295u }; /* SIZE_MAX */
232     char *result[] = { "0", "1", "2", "200", "4294967295" };
233     int i;
234 
235     for (i = 0; i < sizeof(sizet_values) / sizeof(sizet_values[0]); ++i) {
236 #if 0
237 	tot += try("%zu", sizet_values[i]);
238 	tot += try("%zx", sizet_values[i]);
239 	tot += try("%zX", sizet_values[i]);
240 #else
241 	char buf[256];
242 	rk_snprintf(buf, sizeof(buf), "%zu", sizet_values[i]);
243 	if (strcmp(buf, result[i]) != 0) {
244 	    printf("%s != %s", buf, result[i]);
245 	    tot++;
246 	}
247 #endif
248     }
249     return tot;
250 }
251 
252 
253 int
main(int argc,char ** argv)254 main (int argc, char **argv)
255 {
256     int ret = 0;
257 
258     ret += cmp_with_sprintf_int ();
259     ret += cmp_with_sprintf_long ();
260 #ifdef HAVE_LONG_LONG
261     ret += cmp_with_sprintf_long_long ();
262 #endif
263     ret += test_null ();
264     ret += test_sizet ();
265     return ret;
266 }
267