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A		 1/*-
2 * Copyright 2012 Clifton Royston
3 * Copyright 2013 John-Mark Gurney
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 *
29 */
30
31#include <sys/param.h>
32#include <inttypes.h>
33#include <libutil.h>
34#include <limits.h>
35#include <math.h>
36#include <stdio.h>
37#include <stdlib.h>
38#include <string.h>
39#include <unistd.h>
40
41#define MAX_STR_FLAGS_RESULT 80
42#define MAX_INT_STR_DIGITS 12
43#ifdef __APPLE__
44#define nitems(x) (sizeof((x)) / sizeof((x)[0]))
45#define __INT_MAX INT_MAX
46#endif /* __APPLE__ */
47
48static const int64_t halfExabyte = (int64_t)500*1000*1000*1000*1000*1000L;
49
50static struct {
51 int retval;
52 const char *res;
53 int64_t num;
54 int flags;
55 int scale;
56} test_args[] = {
57 /* tests 0-13 test 1000 suffixes */
58 { 2, "0 ", (int64_t)0L, HN_DIVISOR_1000, HN_AUTOSCALE },
59 { 3, "1 k", (int64_t)500L, HN_DIVISOR_1000, HN_AUTOSCALE },
60 { 3, "1 M", (int64_t)500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
61 { 3, "1 G", (int64_t)500*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
62 { 3, "1 T", (int64_t)500*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
63 { 3, "1 P", (int64_t)500*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
64 { 3, "1 E", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
65 { 2, "1 ", (int64_t)1L, HN_DIVISOR_1000, HN_AUTOSCALE },
66 { 3, "2 k", (int64_t)1500L, HN_DIVISOR_1000, HN_AUTOSCALE },
67 { 3, "2 M", (int64_t)1500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
68 { 3, "2 G", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
69 { 3, "2 T", (int64_t)1500*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
70 { 3, "2 P", (int64_t)1500*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
71 { 3, "2 E", (int64_t)1500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
72
73 /* tests 14-27 test 1024 suffixes */
74 { 2, "0 ", (int64_t)0L, 0, HN_AUTOSCALE },
75 { 3, "1 K", (int64_t)512L, 0, HN_AUTOSCALE },
76 { 3, "1 M", (int64_t)512*1024L, 0, HN_AUTOSCALE },
77 { 3, "1 G", (int64_t)512*1024*1024L, 0, HN_AUTOSCALE },
78 { 3, "1 T", (int64_t)512*1024*1024*1024L, 0, HN_AUTOSCALE },
79 { 3, "1 P", (int64_t)512*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
80 { 3, "1 E", (int64_t)512*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
81 { 2, "1 ", (int64_t)1L, 0, HN_AUTOSCALE },
82 { 3, "2 K", (int64_t)1536L, 0, HN_AUTOSCALE },
83 { 3, "2 M", (int64_t)1536*1024L, 0, HN_AUTOSCALE },
84 { 3, "2 G", (int64_t)1536*1024*1024L, 0, HN_AUTOSCALE },
85 { 3, "2 T", (int64_t)1536*1024*1024*1024L, 0, HN_AUTOSCALE },
86 { 3, "2 P", (int64_t)1536*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
87 { 3, "2 E", (int64_t)1536*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
88
89 /* tests 28-37 test rounding */
90 { 3, "0 M", (int64_t)500*1000L-1, HN_DIVISOR_1000, HN_AUTOSCALE },
91 { 3, "1 M", (int64_t)500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
92 { 3, "1 M", (int64_t)1000*1000L + 500*1000L-1, HN_DIVISOR_1000, HN_AUTOSCALE },
93 { 3, "2 M", (int64_t)1000*1000L + 500*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
94 { 3, "0 K", (int64_t)512L-1, 0, HN_AUTOSCALE },
95 { 3, "1 K", (int64_t)512L, 0, HN_AUTOSCALE },
96 { 3, "0 M", (int64_t)512*1024L-1, 0, HN_AUTOSCALE },
97 { 3, "1 M", (int64_t)512*1024L, 0, HN_AUTOSCALE },
98 { 3, "1 M", (int64_t)1024*1024L + 512*1024L-1, 0, HN_AUTOSCALE },
99 { 3, "2 M", (int64_t)1024*1024L + 512*1024L, 0, HN_AUTOSCALE },
100
101 /* tests 38-61 test specific scale factors with 1000 divisor */
102 { 3, "0 k", (int64_t)0L, HN_DIVISOR_1000, 1 },
103 { 3, "1 k", (int64_t)500L, HN_DIVISOR_1000, 1 },
104 { 3, "0 M", (int64_t)500L, HN_DIVISOR_1000, 2 },
105 { 3, "1 M", (int64_t)500*1000L, HN_DIVISOR_1000, 2 },
106 { 3, "0 G", (int64_t)500*1000L, HN_DIVISOR_1000, 3 },
107 { 3, "1 G", (int64_t)500*1000*1000L, HN_DIVISOR_1000, 3 },
108 { 3, "0 T", (int64_t)500*1000*1000L, HN_DIVISOR_1000, 4 },
109 { 3, "1 T", (int64_t)500*1000*1000*1000L, HN_DIVISOR_1000, 4 },
110 { 3, "0 P", (int64_t)500*1000*1000*1000L, HN_DIVISOR_1000, 5 },
111 { 3, "1 P", (int64_t)500*1000*1000*1000*1000L, HN_DIVISOR_1000, 5 },
112 { 3, "0 E", (int64_t)500*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
113 { 3, "1 E", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
114 { 3, "0 k", (int64_t)1L, HN_DIVISOR_1000, 1 },
115 { 3, "2 k", (int64_t)1500L, HN_DIVISOR_1000, 1 },
116 { 3, "0 M", (int64_t)1500L, HN_DIVISOR_1000, 2 },
117 { 3, "2 M", (int64_t)1500*1000L, HN_DIVISOR_1000, 2 },
118 { 3, "0 G", (int64_t)1500*1000L, HN_DIVISOR_1000, 3 },
119 { 3, "2 G", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, 3 },
120 { 3, "0 T", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, 4 },
121 { 3, "2 T", (int64_t)1500*1000*1000*1000L, HN_DIVISOR_1000, 4 },
122 { 3, "0 P", (int64_t)1500*1000*1000*1000L, HN_DIVISOR_1000, 5 },
123 { 3, "2 P", (int64_t)1500*1000*1000*1000*1000L, HN_DIVISOR_1000, 5 },
124 { 3, "0 E", (int64_t)1500*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
125 { 3, "2 E", (int64_t)1500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
126
127 /* tests 62-85 test specific scale factors with 1024 divisor */
128 { 3, "0 K", (int64_t)0L, 0, 1 },
129 { 3, "1 K", (int64_t)512L, 0, 1 },
130 { 3, "0 M", (int64_t)512L, 0, 2 },
131 { 3, "1 M", (int64_t)512*1024L, 0, 2 },
132 { 3, "0 G", (int64_t)512*1024L, 0, 3 },
133 { 3, "1 G", (int64_t)512*1024*1024L, 0, 3 },
134 { 3, "0 T", (int64_t)512*1024*1024L, 0, 4 },
135 { 3, "1 T", (int64_t)512*1024*1024*1024L, 0, 4 },
136 { 3, "0 P", (int64_t)512*1024*1024*1024L, 0, 5 },
137 { 3, "1 P", (int64_t)512*1024*1024*1024*1024L, 0, 5 },
138 { 3, "0 E", (int64_t)512*1024*1024*1024*1024L, 0, 6 },
139 { 3, "1 E", (int64_t)512*1024*1024*1024*1024*1024L, 0, 6 },
140 { 3, "0 K", (int64_t)1L, 0, 1 },
141 { 3, "2 K", (int64_t)1536L, 0, 1 },
142 { 3, "0 M", (int64_t)1536L, 0, 2 },
143 { 3, "2 M", (int64_t)1536*1024L, 0, 2 },
144 { 3, "0 G", (int64_t)1536*1024L, 0, 3 },
145 { 3, "2 G", (int64_t)1536*1024*1024L, 0, 3 },
146 { 3, "0 T", (int64_t)1536*1024*1024L, 0, 4 },
147 { 3, "2 T", (int64_t)1536*1024*1024*1024L, 0, 4 },
148 { 3, "0 P", (int64_t)1536*1024*1024*1024L, 0, 5 },
149 { 3, "2 P", (int64_t)1536*1024*1024*1024*1024L, 0, 5 },
150 { 3, "0 E", (int64_t)1536*1024*1024*1024*1024L, 0, 6 },
151 { 3, "2 E", (int64_t)1536*1024*1024*1024*1024*1024L, 0, 6 },
152
153 /* tests 86-99 test invalid specific scale values of < 0 or >= 7 with
154 and without HN_DIVISOR_1000 set */
155 /* all should return errors with new code; with old, the latter 3
156 are instead processed as if having AUTOSCALE and/or GETSCALE set */
157 { -1, "", (int64_t)1L, 0, 7 },
158 { -1, "", (int64_t)1L, HN_DIVISOR_1000, 7 },
159 { -1, "", (int64_t)1L, 0, 1000 },
160 { -1, "", (int64_t)1L, HN_DIVISOR_1000, 1000 },
161 { -1, "", (int64_t)0L, 0, 1000*1000 },
162 { -1, "", (int64_t)0L, HN_DIVISOR_1000, 1000*1000 },
163 { -1, "", (int64_t)0L, 0, INT_MAX },
164 { -1, "", (int64_t)0L, HN_DIVISOR_1000, INT_MAX },
165
166 /* Negative scale values are not handled well
167 by the existing library routine - should report as error */
168 /* all should return errors with new code, fail assertion with old */
169
170 { -1, "", (int64_t)1L, 0, -1 },
171 { -1, "", (int64_t)1L, HN_DIVISOR_1000, -1 },
172 { -1, "", (int64_t)1L, 0, -1000 },
173 { -1, "", (int64_t)1L, HN_DIVISOR_1000, -1000 },
174
175 /* __INT_MIN doesn't print properly, skipped. */
176
177 { -1, "", (int64_t)1L, 0, -__INT_MAX },
178 { -1, "", (int64_t)1L, HN_DIVISOR_1000, -__INT_MAX },
179
180
181 /* tests for scale == 0, without autoscale */
182 /* tests 100-114 test scale 0 with 1000 divisor - print first N digits */
183 { 2, "0 ", (int64_t)0L, HN_DIVISOR_1000, 0 },
184 { 2, "1 ", (int64_t)1L, HN_DIVISOR_1000, 0 },
185 { 3, "10 ", (int64_t)10L, HN_DIVISOR_1000, 0 },
186 { 3, "0 M", (int64_t)150L, HN_DIVISOR_1000, HN_NOSPACE },
187 { 3, "0 M", (int64_t)500L, HN_DIVISOR_1000, HN_NOSPACE },
188 { 3, "0 M", (int64_t)999L, HN_DIVISOR_1000, HN_NOSPACE },
189 { 4, "150", (int64_t)150L, HN_DIVISOR_1000, 0 },
190 { 4, "500", (int64_t)500L, HN_DIVISOR_1000, 0 },
191 { 4, "999", (int64_t)999L, HN_DIVISOR_1000, 0 },
192 { 5, "100", (int64_t)1000L, HN_DIVISOR_1000, 0 },
193 { 5, "150", (int64_t)1500L, HN_DIVISOR_1000, 0 },
194 { 7, "500", (int64_t)500*1000L, HN_DIVISOR_1000, 0 },
195 { 8, "150", (int64_t)1500*1000L, HN_DIVISOR_1000, 0 },
196 { 10, "500", (int64_t)500*1000*1000L, HN_DIVISOR_1000, 0 },
197 { 11, "150", (int64_t)1500*1000*1000L, HN_DIVISOR_1000, 0 },
198
199 /* tests 115-126 test scale 0 with 1024 divisor - print first N digits */
200 { 2, "0 ", (int64_t)0L, 0, 0 },
201 { 2, "1 ", (int64_t)1L, 0, 0 },
202 { 3, "10 ", (int64_t)10L, 0, 0 },
203 { 4, "150", (int64_t)150L, 0, 0 },
204 { 4, "500", (int64_t)500L, 0, 0 },
205 { 4, "999", (int64_t)999L, 0, 0 },
206 { 5, "100", (int64_t)1000L, 0, 0 },
207 { 5, "150", (int64_t)1500L, 0, 0 },
208 { 7, "500", (int64_t)500*1000L, 0, 0 },
209 { 8, "150", (int64_t)1500*1000L, 0, 0 },
210 { 10, "500", (int64_t)500*1000*1000L, 0, 0 },
211 { 11, "150", (int64_t)1500*1000*1000L, 0, 0 },
212
213 /* Test boundary cases for very large positive/negative number formatting */
214 /* Explicit scale, divisor 1024 */
215
216 /* XXX = requires length 5 (buflen 6) for some cases*/
217 /* KLUDGE - test loop below will bump length 5 up to 5 */
218 { 3, "8 E", INT64_MAX, 0, 6 },
219 { 4, "-8 E", -INT64_MAX, 0, 6 },
220 { 3, "0 E", (int64_t)92*1024*1024*1024*1024*1024L, 0, 6 },
221 { 3, "0 E", -(int64_t)92*1024*1024*1024*1024*1024L, 0, 6 },
222 { 3, "0 E", (int64_t)82*1024*1024*1024*1024*1024L, 0, 6 },
223 { 3, "0 E", -(int64_t)82*1024*1024*1024*1024*1024L, 0, 6 },
224 { 3, "0 E", (int64_t)81*1024*1024*1024*1024*1024L, 0, 6 },
225 { 3, "0 E", -(int64_t)81*1024*1024*1024*1024*1024L, 0, 6 },
226 { 4, "92 P", (int64_t)92*1024*1024*1024*1024*1024L, 0, 5 },
227 { 5, "-92 P", -(int64_t)92*1024*1024*1024*1024*1024L, 0, 5 },
228 { 4, "82 P", (int64_t)82*1024*1024*1024*1024*1024L, 0, 5 },
229 { 5, "-82 P", -(int64_t)82*1024*1024*1024*1024*1024L, 0, 5 },
230 { 4, "81 P", (int64_t)81*1024*1024*1024*1024*1024L, 0, 5 },
231 { 5, "-81 P", -(int64_t)81*1024*1024*1024*1024*1024L, 0, 5 },
232
233 /* Explicit scale, divisor 1000 */
234 { 3, "9 E", INT64_MAX, HN_DIVISOR_1000, 6 },
235 { 4, "-9 E", -INT64_MAX, HN_DIVISOR_1000, 6 },
236 { 3, "0 E", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
237 { 3, "0 E", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
238 { 3, "0 E", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
239 { 3, "0 E", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 6 },
240 { 4, "92 P", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
241 { 5, "-92 P", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
242 { 4, "91 P", (int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
243 { 5, "-91 P", -(int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 5 },
244
245 /* Autoscale, divisor 1024 */
246 { 3, "8 E", INT64_MAX, 0, HN_AUTOSCALE },
247 { 4, "-8 E", -INT64_MAX, 0, HN_AUTOSCALE },
248 { 4, "92 P", (int64_t)92*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
249 { 5, "-92 P", -(int64_t)92*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
250 { 4, "82 P", (int64_t)82*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
251 { 5, "-82 P", -(int64_t)82*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
252 { 4, "81 P", (int64_t)81*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
253 { 5, "-81 P", -(int64_t)81*1024*1024*1024*1024*1024L, 0, HN_AUTOSCALE },
254 /* Autoscale, divisor 1000 */
255 { 3, "9 E", INT64_MAX, HN_DIVISOR_1000, HN_AUTOSCALE },
256 { 4, "-9 E", -INT64_MAX, HN_DIVISOR_1000, HN_AUTOSCALE },
257 { 4, "92 P", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
258 { 5, "-92 P", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
259 { 4, "91 P", (int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
260 { 5, "-91 P", -(int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, HN_AUTOSCALE },
261
262 /* 0 scale, divisor 1024 */
263 { 12, "skdj", INT64_MAX, 0, 0 },
264 { 21, "-9223", -INT64_MAX, 0, 0 },
265 { 19, "10358", (int64_t)92*1024*1024*1024*1024*1024L, 0, 0 },
266 { 20, "-1035", -(int64_t)92*1024*1024*1024*1024*1024L, 0, 0 },
267 { 18, "92323", (int64_t)82*1024*1024*1024*1024*1024L, 0, 0 },
268 { 19, "-9232", -(int64_t)82*1024*1024*1024*1024*1024L, 0, 0 },
269 { 18, "91197", (int64_t)81*1024*1024*1024*1024*1024L, 0, 0 },
270 { 19, "-9119", -(int64_t)81*1024*1024*1024*1024*1024L, 0, 0 },
271
272 /* 0 scale, divisor 1000 */
273 /* XXX - why does this fail? */
274 { -1, "", INT64_MAX, HN_DIVISOR_1000, 0 },
275 { 21, "-9223", -INT64_MAX, HN_DIVISOR_1000, 0 },
276 { 19, "10358", (int64_t)92*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
277 { 20, "-1035", -(int64_t)92*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
278 { 18, "92323", (int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
279 { 19, "-9232", -(int64_t)82*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
280 /* Expected to pass */
281 { 18, "91197", (int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
282 { 19, "-9119", -(int64_t)81*1024*1024*1024*1024*1024L, HN_DIVISOR_1000, 0 },
283
284
285
286 /* Need to implement tests for GETSCALE */
287/* { ?, "", (int64_t)0L, HN_DIVISOR_1000, HN_GETSCALE },
288 ...
289*/
290 /* Tests for HN_DECIMAL */
291 /* Positive, Autoscale */
292 { 5, "500 k", (int64_t)500*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
293 { 5, "994 k", (int64_t)994*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
294 { 5, "995 k", (int64_t)995*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
295 { 5, "999 k", (int64_t)999*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
296 { 5, "1.0 M", (int64_t)1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
297 { 5, "1.5 M", (int64_t)1500*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
298 { 5, "1.9 M", (int64_t)1949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
299 { 5, "2.0 M", (int64_t)1950*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
300 { 5, "9.9 M", (int64_t)9949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
301 { 4, "10 M", (int64_t)9950*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
302 { 5, "500 M", (int64_t)500*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
303 { 5, "994 M", (int64_t)994*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
304 { 5, "995 M", (int64_t)995*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
305 { 5, "999 M", (int64_t)999*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
306
307 { 5, "500 K", (int64_t)500*1024L, HN_DECIMAL, HN_AUTOSCALE },
308 { 5, "994 K", (int64_t)994*1024L, HN_DECIMAL, HN_AUTOSCALE },
309 { 5, "995 K", (int64_t)995*1024L, HN_DECIMAL, HN_AUTOSCALE },
310 { 5, "999 K", (int64_t)999*1024L, HN_DECIMAL, HN_AUTOSCALE },
311 { 5, "1.0 M", (int64_t)1000*1024L, HN_DECIMAL, HN_AUTOSCALE },
312 { 5, "1.0 M", (int64_t)1018*1024L, HN_DECIMAL, HN_AUTOSCALE },
313 { 5, "1.0 M", (int64_t)1019*1024L, HN_DECIMAL, HN_AUTOSCALE },
314 { 5, "1.5 M", (int64_t)1536*1024L, HN_DECIMAL, HN_AUTOSCALE },
315 { 5, "1.9 M", (int64_t)1996*1024L, HN_DECIMAL, HN_AUTOSCALE },
316 { 5, "2.0 M", (int64_t)1997*1024L, HN_DECIMAL, HN_AUTOSCALE },
317 { 5, "2.0 M", (int64_t)2047*1024L, HN_DECIMAL, HN_AUTOSCALE },
318 { 5, "2.0 M", (int64_t)2048*1024L, HN_DECIMAL, HN_AUTOSCALE },
319 { 5, "2.0 M", (int64_t)2099*1024L, HN_DECIMAL, HN_AUTOSCALE },
320 { 5, "2.1 M", (int64_t)2100*1024L, HN_DECIMAL, HN_AUTOSCALE },
321 { 5, "9.9 M", (int64_t)10188*1024L, HN_DECIMAL, HN_AUTOSCALE },
322 /* XXX - shouldn't the following two be "10. M"? */
323 { 4, "10 M", (int64_t)10189*1024L, HN_DECIMAL, HN_AUTOSCALE },
324 { 4, "10 M", (int64_t)10240*1024L, HN_DECIMAL, HN_AUTOSCALE },
325 { 5, "500 M", (int64_t)500*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
326 { 5, "994 M", (int64_t)994*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
327 { 5, "995 M", (int64_t)995*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
328 { 5, "999 M", (int64_t)999*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
329 { 5, "1.0 G", (int64_t)1000*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
330 { 5, "1.0 G", (int64_t)1023*1024*1024L, HN_DECIMAL, HN_AUTOSCALE },
331
332 /* Negative, Autoscale - should pass */
333 { 6, "-1.5 ", -(int64_t)1500*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
334 { 6, "-1.9 ", -(int64_t)1949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
335 { 6, "-9.9 ", -(int64_t)9949*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
336
337 { 6, "-1.5 ", -(int64_t)1536*1024L, HN_DECIMAL, HN_AUTOSCALE },
338 { 6, "-1.9 ", -(int64_t)1949*1024L, HN_DECIMAL, HN_AUTOSCALE },
339 { 6, "-9.7 ", -(int64_t)9949*1024L, HN_DECIMAL, HN_AUTOSCALE },
340
341 /* Positive/negative, at maximum scale */
342 { 5, "500 P", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
343 { 5, "1.9 E", (int64_t)1949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
344 { 5, "8.9 E", (int64_t)8949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, HN_AUTOSCALE },
345 { 5, "9.2 E", INT64_MAX, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
346 /* Negatives work with latest rev only: */
347 { 6, "-9.2 ", -INT64_MAX, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
348 { 6, "-8.9 ", -(int64_t)8949*1000*1000*1000*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, HN_AUTOSCALE },
349
350 { 5, "8.0 E", INT64_MAX, HN_DECIMAL, HN_AUTOSCALE },
351 { 5, "7.9 E", INT64_MAX-(int64_t)100*1024*1024*1024*1024*1024LL, HN_DECIMAL, HN_AUTOSCALE },
352 { 6, "-8.0 ", -INT64_MAX, HN_DECIMAL, HN_AUTOSCALE },
353 { 6, "-7.9 ", -INT64_MAX+(int64_t)100*1024*1024*1024*1024*1024LL, HN_DECIMAL, HN_AUTOSCALE },
354
355 /* Positive, Fixed scales */
356 { 5, "500 k", (int64_t)500*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
357 { 5, "0.5 M", (int64_t)500*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
358 { 5, "949 k", (int64_t)949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
359 { 5, "0.9 M", (int64_t)949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
360 { 5, "950 k", (int64_t)950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
361 { 5, "1.0 M", (int64_t)950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
362 { 5, "999 k", (int64_t)999*1000L, HN_DECIMAL|HN_DIVISOR_1000, 1 },
363 { 5, "1.0 M", (int64_t)999*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
364 { 5, "1.5 M", (int64_t)1500*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
365 { 5, "1.9 M", (int64_t)1949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
366 { 5, "2.0 M", (int64_t)1950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
367 { 5, "9.9 M", (int64_t)9949*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
368 { 4, "10 M", (int64_t)9950*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
369 { 5, "500 M", (int64_t)500*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
370 { 5, "0.5 G", (int64_t)500*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 3 },
371 { 5, "999 M", (int64_t)999*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 2 },
372 { 5, "1.0 G", (int64_t)999*1000*1000L, HN_DECIMAL|HN_DIVISOR_1000, 3 },
373 /* Positive/negative, at maximum scale */
374 { 5, "500 P", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 5 },
375 { 5, "1.0 E", (int64_t)500*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
376 { 5, "1.9 E", (int64_t)1949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
377 { 5, "8.9 E", (int64_t)8949*1000*1000*1000*1000*1000L, HN_DIVISOR_1000, 6 },
378 { 5, "9.2 E", INT64_MAX, HN_DECIMAL|HN_DIVISOR_1000, 6 },
379
380 /* HN_DECIMAL + binary + fixed scale cases not completed */
381 { 5, "512 K", (int64_t)512*1024L, HN_DECIMAL, 1 },
382 { 5, "0.5 M", (int64_t)512*1024L, HN_DECIMAL, 2 },
383
384 /* Negative, Fixed scales */
385 /* Not yet added, but should work with latest rev */
386
387};
388
389
390/* Command line options usage */
391static void
392usage(char * progname) {
393 printf("%s: tests libutil humanize_number function\n", progname);
394 printf("Usage: %s [-nE] [-l num] [-v]\n\n", progname);
395 printf("Options:\n");
396 printf("\t-l num\tSet max length for result; buflen = num + 1\n");
397 printf("\t\t (NOTE: does not change expected result strings.)\n");
398 printf("\t-n\tInclude negative scale tests, which cause older libutil\n");
399 printf("\t\t version of function to coredump with assertion failure\n");
400 printf("\t-E\tInclude numbers > 1/2 Exa[byte] which currently fail\n");
401 printf("\t-v\tVerbose - always print summary results\n");
402 printf("\t-h, -?\tShow options\n");
403}
404
405/* Parse command line options */
406static void
407read_options(int argc, char * const argv[], size_t *bufLength,
408 int *includeNegativeScale, int *includeExabytes, int *verbose) {
409 int ch;
410 size_t temp;
411
412 while ((ch = getopt(argc, argv, "nEh?vl:")) != -1) {
413 switch (ch) {
414 default:
415 usage(argv[0]);
416 exit(1);
417 break; /* UNREACHABLE */
418 case 'h' :
419 case '?' :
420 usage(argv[0]);
421 exit(0);
422 break; /* UNREACHABLE */
423 case 'l' :
424 sscanf(optarg, "%zu", &temp);
425 *bufLength = temp + 1;
426 break;
427 case 'n' :
428 *includeNegativeScale = 1;
429 break;
430 case 'E' :
431 *includeExabytes = 1;
432 break;
433 case 'v' :
434 *verbose = 1;
435 break;
436 }
437 }
438}
439
440static struct {
441 int value;
442 const char *name;
443 } flags[] = {
444 { HN_AUTOSCALE, "HN_AUTOSCALE" },
445 { HN_GETSCALE, "HN_GETSCALE" },
446 { HN_DIVISOR_1000, "HN_DIVISOR_1000"},
447 { HN_B, "HN_B"},
448 { HN_DECIMAL, "HN_DECIMAL"},
449};
450
451static const char *separator = "|";
452
453/* Format flags parameter for meaningful display */
454static char *
455str_flags(int hn_flags, char *noFlags) {
456 size_t i;
457 char * result;
458
459 result = malloc(MAX_STR_FLAGS_RESULT);
460 result[0] = '\0';
461
462 for (i = 0; i < sizeof flags / sizeof *flags; i++) {
463 if (hn_flags & flags[i].value) {
464 if (*result != 0)
465 strlcat(result, separator,
466 MAX_STR_FLAGS_RESULT);
467 strlcat(result, flags[i].name, MAX_STR_FLAGS_RESULT);
468 }
469 }
470
471 if (strlen(result) == 0)
472 strlcat(result, noFlags, MAX_STR_FLAGS_RESULT);
473 return result;
474}
475
476
477/* Format scale parameter for meaningful display */
478static char *
479str_scale(int scale) {
480 char *result;
481
482 if (scale == HN_AUTOSCALE || scale == HN_GETSCALE)
483 return str_flags(scale, "");
484
485 result = malloc(MAX_INT_STR_DIGITS);
486 result[0] = '\0';
487 snprintf(result, MAX_INT_STR_DIGITS, "%d", scale);
488 return result;
489}
490
491static void
492testskipped(size_t i)
493{
494
495 printf("ok %zu # skip - not turned on\n", i);
496}
497
498int
499main(int argc, char * const argv[])
500{
501 char *buf;
502 char *flag_str, *scale_str;
503 size_t buflen, errcnt, i, skipped, tested;
504 int r;
505 int includeNegScale;
506 int includeExabyteTests;
507 int verbose;
508
509 buflen = 4;
510 includeNegScale = 0;
511 includeExabyteTests = 0;
512 verbose = 0;
513
514 read_options(argc, argv, &buflen, &includeNegScale,
515 &includeExabyteTests, &verbose);
516
517 buf = malloc(buflen);
518 errcnt = 0;
519 tested = 0;
520 skipped = 0;
521
522 if (buflen != 4)
523 printf("Warning: buffer size %zu != 4, expect some results to differ.\n", buflen);
524
525 printf("1..%zu\n", nitems(test_args));
526 for (i = 0; i < nitems(test_args); i++) {
527 /* KLUDGE */
528 if (test_args[i].num == INT64_MAX && buflen == 4) {
529 /* Start final tests which require buffer of 6 */
530 free(buf);
531 buflen = 6;
532 buf = malloc(buflen);
533 if (verbose)
534 printf("Buffer length increased to %zu\n",
535 buflen);
536 }
537
538 if (test_args[i].scale < 0 && ! includeNegScale) {
539 skipped++;
540 testskipped(i + 1);
541 continue;
542 }
543 if (test_args[i].num >= halfExabyte && ! includeExabyteTests) {
544 skipped++;
545 testskipped(i + 1);
546 continue;
547 }
548
549 r = humanize_number(buf, buflen, test_args[i].num, "",
550 test_args[i].scale, test_args[i].flags);
551 flag_str = str_flags(test_args[i].flags, "[no flags]");
552 scale_str = str_scale(test_args[i].scale);
553
554 if (r != test_args[i].retval) {
555 if (verbose)
556 printf("wrong return value on index %zu, "
557 "buflen: %zu, got: %d + \"%s\", "
558 "expected %d + \"%s\"; num = %jd, "
559 "scale = %s, flags= %s.\n",
560 i, buflen, r, buf, test_args[i].retval,
561 test_args[i].res,
562 (intmax_t)test_args[i].num,
563 scale_str, flag_str);
564 else
565 printf("not ok %zu # return %d != %d\n",
566 i + 1, r, test_args[i].retval);
567 errcnt++;
568 } else if (strcmp(buf, test_args[i].res) != 0) {
569 if (verbose)
570 printf("result mismatch on index %zu, got: "
571 "\"%s\", expected \"%s\"; num = %jd, "
572 "scale = %s, flags= %s.\n",
573 i, buf, test_args[i].res,
574 (intmax_t)test_args[i].num,
575 scale_str, flag_str);
576 else
577 printf("not ok %zu # buf \"%s\" != \"%s\"\n",
578 i + 1, buf, test_args[i].res);
579 errcnt++;
580 } else {
581 if (verbose)
582 printf("successful result on index %zu, "
583 "returned %d, got: \"%s\"; num = %jd, "
584 "scale = %s, flags= %s.\n",
585 i, r, buf,
586 (intmax_t)test_args[i].num,
587 scale_str, flag_str);
588 else
589 printf("ok %zu\n", i + 1);
590 }
591 tested++;
592 }
593
594 if (verbose)
595 printf("total errors: %zu/%zu tests, %zu skipped\n", errcnt,
596 tested, skipped);
597
598 if (errcnt)
599 return 1;
600
601 return 0;
602}
mirror of libutil