1 /*
2 * Copyright 2016-2025 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #define TESTUTIL_NO_size_t_COMPARISON
11
12 #include <stdio.h>
13 #include <string.h>
14 #include <openssl/bio.h>
15 #include "internal/nelem.h"
16 #include "internal/numbers.h"
17 #include "testutil.h"
18 #include "testutil/output.h"
19
20 static int justprint = 0;
21
22 static char *fpexpected[][11][5] = {
23 {
24 /* 0.00 */ { "0.0000e+00", "0.0000", "0", "0.0000E+00", "0" },
25 /* 0.01 */ { "6.7000e-01", "0.6700", "0.67", "6.7000E-01", "0.67" },
26 /* 0.02 */ { "6.6667e-01", "0.6667", "0.6667", "6.6667E-01", "0.6667" },
27 /* 0.03 */ { "6.6667e-04", "0.0007", "0.0006667", "6.6667E-04", "0.0006667" },
28 /* 0.04 */ { "6.6667e-05", "0.0001", "6.667e-05", "6.6667E-05", "6.667E-05" },
29 /* 0.05 */ { "6.6667e+00", "6.6667", "6.667", "6.6667E+00", "6.667" },
30 /* 0.06 */ { "6.6667e+01", "66.6667", "66.67", "6.6667E+01", "66.67" },
31 /* 0.07 */ { "6.6667e+02", "666.6667", "666.7", "6.6667E+02", "666.7" },
32 /* 0.08 */ { "6.6667e+03", "6666.6667", "6667", "6.6667E+03", "6667" },
33 /* 0.09 */ { "6.6667e+04", "66666.6667", "6.667e+04", "6.6667E+04", "6.667E+04" },
34 /* 0.10 */ { "-6.6667e+04", "-66666.6667", "-6.667e+04", "-6.6667E+04", "-6.667E+04" },
35 },
36 {
37 /* 1.00 */ { "0.00000e+00", "0.00000", "0", "0.00000E+00", "0" },
38 /* 1.01 */ { "6.70000e-01", "0.67000", "0.67", "6.70000E-01", "0.67" },
39 /* 1.02 */ { "6.66667e-01", "0.66667", "0.66667", "6.66667E-01", "0.66667" },
40 /* 1.03 */ { "6.66667e-04", "0.00067", "0.00066667", "6.66667E-04", "0.00066667" },
41 /* 1.04 */ { "6.66667e-05", "0.00007", "6.6667e-05", "6.66667E-05", "6.6667E-05" },
42 /* 1.05 */ { "6.66667e+00", "6.66667", "6.6667", "6.66667E+00", "6.6667" },
43 /* 1.06 */ { "6.66667e+01", "66.66667", "66.667", "6.66667E+01", "66.667" },
44 /* 1.07 */ { "6.66667e+02", "666.66667", "666.67", "6.66667E+02", "666.67" },
45 /* 1.08 */ { "6.66667e+03", "6666.66667", "6666.7", "6.66667E+03", "6666.7" },
46 /* 1.09 */ { "6.66667e+04", "66666.66667", "66667", "6.66667E+04", "66667" },
47 /* 1.10 */ { "-6.66667e+04", "-66666.66667", "-66667", "-6.66667E+04", "-66667" },
48 },
49 {
50 /* 2.00 */ { " 0.0000e+00", " 0.0000", " 0", " 0.0000E+00", " 0" },
51 /* 2.01 */ { " 6.7000e-01", " 0.6700", " 0.67", " 6.7000E-01", " 0.67" },
52 /* 2.02 */ { " 6.6667e-01", " 0.6667", " 0.6667", " 6.6667E-01", " 0.6667" },
53 /* 2.03 */ { " 6.6667e-04", " 0.0007", " 0.0006667", " 6.6667E-04", " 0.0006667" },
54 /* 2.04 */ { " 6.6667e-05", " 0.0001", " 6.667e-05", " 6.6667E-05", " 6.667E-05" },
55 /* 2.05 */ { " 6.6667e+00", " 6.6667", " 6.667", " 6.6667E+00", " 6.667" },
56 /* 2.06 */ { " 6.6667e+01", " 66.6667", " 66.67", " 6.6667E+01", " 66.67" },
57 /* 2.07 */ { " 6.6667e+02", " 666.6667", " 666.7", " 6.6667E+02", " 666.7" },
58 /* 2.08 */ { " 6.6667e+03", " 6666.6667", " 6667", " 6.6667E+03", " 6667" },
59 /* 2.09 */ { " 6.6667e+04", " 66666.6667", " 6.667e+04", " 6.6667E+04", " 6.667E+04" },
60 /* 2.10 */ { " -6.6667e+04", " -66666.6667", " -6.667e+04", " -6.6667E+04", " -6.667E+04" },
61 },
62 {
63 /* 3.00 */ { " 0.00000e+00", " 0.00000", " 0", " 0.00000E+00", " 0" },
64 /* 3.01 */ { " 6.70000e-01", " 0.67000", " 0.67", " 6.70000E-01", " 0.67" },
65 /* 3.02 */ { " 6.66667e-01", " 0.66667", " 0.66667", " 6.66667E-01", " 0.66667" },
66 /* 3.03 */ { " 6.66667e-04", " 0.00067", " 0.00066667", " 6.66667E-04", " 0.00066667" },
67 /* 3.04 */ { " 6.66667e-05", " 0.00007", " 6.6667e-05", " 6.66667E-05", " 6.6667E-05" },
68 /* 3.05 */ { " 6.66667e+00", " 6.66667", " 6.6667", " 6.66667E+00", " 6.6667" },
69 /* 3.06 */ { " 6.66667e+01", " 66.66667", " 66.667", " 6.66667E+01", " 66.667" },
70 /* 3.07 */ { " 6.66667e+02", " 666.66667", " 666.67", " 6.66667E+02", " 666.67" },
71 /* 3.08 */ { " 6.66667e+03", " 6666.66667", " 6666.7", " 6.66667E+03", " 6666.7" },
72 /* 3.09 */ { " 6.66667e+04", " 66666.66667", " 66667", " 6.66667E+04", " 66667" },
73 /* 3.10 */ { "-6.66667e+04", "-66666.66667", " -66667", "-6.66667E+04", " -66667" },
74 },
75 {
76 /* 4.00 */ { "0e+00", "0", "0", "0E+00", "0" },
77 /* 4.01 */ { "7e-01", "1", "0.7", "7E-01", "0.7" },
78 /* 4.02 */ { "7e-01", "1", "0.7", "7E-01", "0.7" },
79 /* 4.03 */ { "7e-04", "0", "0.0007", "7E-04", "0.0007" },
80 /* 4.04 */ { "7e-05", "0", "7e-05", "7E-05", "7E-05" },
81 /* 4.05 */ { "7e+00", "7", "7", "7E+00", "7" },
82 /* 4.06 */ { "7e+01", "67", "7e+01", "7E+01", "7E+01" },
83 /* 4.07 */ { "7e+02", "667", "7e+02", "7E+02", "7E+02" },
84 /* 4.08 */ { "7e+03", "6667", "7e+03", "7E+03", "7E+03" },
85 /* 4.09 */ { "7e+04", "66667", "7e+04", "7E+04", "7E+04" },
86 /* 4.10 */ { "-7e+04", "-66667", "-7e+04", "-7E+04", "-7E+04" },
87 },
88 {
89 /* 5.00 */ { "0.000000e+00", "0.000000", "0", "0.000000E+00", "0" },
90 /* 5.01 */ { "6.700000e-01", "0.670000", "0.67", "6.700000E-01", "0.67" },
91 /* 5.02 */ { "6.666667e-01", "0.666667", "0.666667", "6.666667E-01", "0.666667" },
92 /* 5.03 */ { "6.666667e-04", "0.000667", "0.000666667", "6.666667E-04", "0.000666667" },
93 /* 5.04 */ { "6.666667e-05", "0.000067", "6.66667e-05", "6.666667E-05", "6.66667E-05" },
94 /* 5.05 */ { "6.666667e+00", "6.666667", "6.66667", "6.666667E+00", "6.66667" },
95 /* 5.06 */ { "6.666667e+01", "66.666667", "66.6667", "6.666667E+01", "66.6667" },
96 /* 5.07 */ { "6.666667e+02", "666.666667", "666.667", "6.666667E+02", "666.667" },
97 /* 5.08 */ { "6.666667e+03", "6666.666667", "6666.67", "6.666667E+03", "6666.67" },
98 /* 5.09 */ { "6.666667e+04", "66666.666667", "66666.7", "6.666667E+04", "66666.7" },
99 /* 5.10 */ { "-6.666667e+04", "-66666.666667", "-66666.7", "-6.666667E+04", "-66666.7" },
100 },
101 {
102 /* 6.00 */ { "0.0000e+00", "000.0000", "00000000", "0.0000E+00", "00000000" },
103 /* 6.01 */ { "6.7000e-01", "000.6700", "00000.67", "6.7000E-01", "00000.67" },
104 /* 6.02 */ { "6.6667e-01", "000.6667", "000.6667", "6.6667E-01", "000.6667" },
105 /* 6.03 */ { "6.6667e-04", "000.0007", "0.0006667", "6.6667E-04", "0.0006667" },
106 /* 6.04 */ { "6.6667e-05", "000.0001", "6.667e-05", "6.6667E-05", "6.667E-05" },
107 /* 6.05 */ { "6.6667e+00", "006.6667", "0006.667", "6.6667E+00", "0006.667" },
108 /* 6.06 */ { "6.6667e+01", "066.6667", "00066.67", "6.6667E+01", "00066.67" },
109 /* 6.07 */ { "6.6667e+02", "666.6667", "000666.7", "6.6667E+02", "000666.7" },
110 /* 6.08 */ { "6.6667e+03", "6666.6667", "00006667", "6.6667E+03", "00006667" },
111 /* 6.09 */ { "6.6667e+04", "66666.6667", "6.667e+04", "6.6667E+04", "6.667E+04" },
112 /* 6.10 */ { "-6.6667e+04", "-66666.6667", "-6.667e+04", "-6.6667E+04", "-6.667E+04" },
113 },
114 };
115
116 typedef struct z_data_st {
117 size_t value;
118 const char *format;
119 const char *expected;
120 } z_data;
121
122 static z_data zu_data[] = {
123 { SIZE_MAX, "%zu", (sizeof(size_t) == 4 ? "4294967295" : sizeof(size_t) == 8 ? "18446744073709551615"
124 : "") },
125 /*
126 * in 2-complement, the unsigned number divided by two plus one becomes the
127 * smallest possible negative signed number of the corresponding type
128 */
129 { SIZE_MAX / 2 + 1, "%zi", (sizeof(size_t) == 4 ? "-2147483648" : sizeof(size_t) == 8 ? "-9223372036854775808"
130 : "") },
131 { 0, "%zu", "0" },
132 { 0, "%zi", "0" },
133 };
134
test_zu(int i)135 static int test_zu(int i)
136 {
137 char bio_buf[80];
138 const z_data *data = &zu_data[i];
139
140 BIO_snprintf(bio_buf, sizeof(bio_buf) - 1, data->format, data->value);
141 if (!TEST_str_eq(bio_buf, data->expected))
142 return 0;
143 return 1;
144 }
145
146 typedef struct j_data_st {
147 uint64_t value;
148 const char *format;
149 const char *expected;
150 } j_data;
151
152 static j_data jf_data[] = {
153 { 0xffffffffffffffffULL, "%ju", "18446744073709551615" },
154 { 0xffffffffffffffffULL, "%jx", "ffffffffffffffff" },
155 { 0x8000000000000000ULL, "%ju", "9223372036854775808" },
156 /*
157 * These tests imply two's complement, but it's the only binary
158 * representation we support, see test/sanitytest.c...
159 */
160 { 0x8000000000000000ULL, "%ji", "-9223372036854775808" },
161 };
162
test_j(int i)163 static int test_j(int i)
164 {
165 const j_data *data = &jf_data[i];
166 char bio_buf[80];
167
168 BIO_snprintf(bio_buf, sizeof(bio_buf) - 1, data->format, data->value);
169 if (!TEST_str_eq(bio_buf, data->expected))
170 return 0;
171 return 1;
172 }
173
174 /* Precision and width. */
175 typedef struct pw_st {
176 int p;
177 const char *w;
178 } pw;
179
180 static pw pw_params[] = {
181 { 4, "" },
182 { 5, "" },
183 { 4, "12" },
184 { 5, "12" },
185 { 0, "" },
186 { -1, "" },
187 { 4, "08" }
188 };
189
dofptest(int test,int sub,double val,const char * width,int prec)190 static int dofptest(int test, int sub, double val, const char *width, int prec)
191 {
192 static const char *fspecs[] = {
193 "e", "f", "g", "E", "G"
194 };
195 char format[80], result[80];
196 int ret = 1, i;
197
198 for (i = 0; i < (int)OSSL_NELEM(fspecs); i++) {
199 const char *fspec = fspecs[i];
200
201 if (prec >= 0)
202 BIO_snprintf(format, sizeof(format), "%%%s.%d%s", width, prec,
203 fspec);
204 else
205 BIO_snprintf(format, sizeof(format), "%%%s%s", width, fspec);
206 BIO_snprintf(result, sizeof(result), format, val);
207
208 if (justprint) {
209 if (i == 0)
210 printf(" /* %d.%02d */ { \"%s\"", test, sub, result);
211 else
212 printf(", \"%s\"", result);
213 } else if (!TEST_str_eq(fpexpected[test][sub][i], result)) {
214 TEST_info("test %d format=|%s| exp=|%s|, ret=|%s|",
215 test, format, fpexpected[test][sub][i], result);
216 ret = 0;
217 }
218 }
219 if (justprint)
220 printf(" },\n");
221 return ret;
222 }
223
test_fp(int i)224 static int test_fp(int i)
225 {
226 int t = 0, r;
227 const double frac = 2.0 / 3.0;
228 const pw *pwp = &pw_params[i];
229
230 if (justprint)
231 printf(" {\n");
232 r = TEST_true(dofptest(i, t++, 0.0, pwp->w, pwp->p))
233 && TEST_true(dofptest(i, t++, 0.67, pwp->w, pwp->p))
234 && TEST_true(dofptest(i, t++, frac, pwp->w, pwp->p))
235 && TEST_true(dofptest(i, t++, frac / 1000, pwp->w, pwp->p))
236 && TEST_true(dofptest(i, t++, frac / 10000, pwp->w, pwp->p))
237 && TEST_true(dofptest(i, t++, 6.0 + frac, pwp->w, pwp->p))
238 && TEST_true(dofptest(i, t++, 66.0 + frac, pwp->w, pwp->p))
239 && TEST_true(dofptest(i, t++, 666.0 + frac, pwp->w, pwp->p))
240 && TEST_true(dofptest(i, t++, 6666.0 + frac, pwp->w, pwp->p))
241 && TEST_true(dofptest(i, t++, 66666.0 + frac, pwp->w, pwp->p))
242 && TEST_true(dofptest(i, t++, -66666.0 - frac, pwp->w, pwp->p));
243 if (justprint)
244 printf(" },\n");
245 return r;
246 }
247
test_big(void)248 static int test_big(void)
249 {
250 char buf[80];
251
252 /* Test excessively big number. Should fail */
253 if (!TEST_int_eq(BIO_snprintf(buf, sizeof(buf),
254 "%f\n", 2 * (double)ULONG_MAX),
255 -1))
256 return 0;
257
258 return 1;
259 }
260
261 typedef enum OPTION_choice {
262 OPT_ERR = -1,
263 OPT_EOF = 0,
264 OPT_PRINT,
265 OPT_TEST_ENUM
266 } OPTION_CHOICE;
267
test_get_options(void)268 const OPTIONS *test_get_options(void)
269 {
270 static const OPTIONS options[] = {
271 OPT_TEST_OPTIONS_DEFAULT_USAGE,
272 { "expected", OPT_PRINT, '-', "Output values" },
273 { NULL }
274 };
275 return options;
276 }
277
setup_tests(void)278 int setup_tests(void)
279 {
280 OPTION_CHOICE o;
281
282 while ((o = opt_next()) != OPT_EOF) {
283 switch (o) {
284 case OPT_PRINT:
285 justprint = 1;
286 break;
287 case OPT_TEST_CASES:
288 break;
289 default:
290 return 0;
291 }
292 }
293
294 ADD_TEST(test_big);
295 ADD_ALL_TESTS(test_fp, OSSL_NELEM(pw_params));
296 ADD_ALL_TESTS(test_zu, OSSL_NELEM(zu_data));
297 ADD_ALL_TESTS(test_j, OSSL_NELEM(jf_data));
298 return 1;
299 }
300
301 /*
302 * Replace testutil output routines. We do this to eliminate possible sources
303 * of BIO error
304 */
305 BIO *bio_out = NULL;
306 BIO *bio_err = NULL;
307
308 static int tap_level = 0;
309
test_open_streams(void)310 void test_open_streams(void)
311 {
312 }
313
test_adjust_streams_tap_level(int level)314 void test_adjust_streams_tap_level(int level)
315 {
316 tap_level = level;
317 }
318
test_close_streams(void)319 void test_close_streams(void)
320 {
321 }
322
323 /*
324 * This works out as long as caller doesn't use any "fancy" formats.
325 * But we are caller's caller, and test_str_eq is the only one called,
326 * and it uses only "%s", which is not "fancy"...
327 */
test_vprintf_stdout(const char * fmt,va_list ap)328 int test_vprintf_stdout(const char *fmt, va_list ap)
329 {
330 return fprintf(stdout, "%*s# ", tap_level, "") + vfprintf(stdout, fmt, ap);
331 }
332
test_vprintf_stderr(const char * fmt,va_list ap)333 int test_vprintf_stderr(const char *fmt, va_list ap)
334 {
335 return fprintf(stderr, "%*s# ", tap_level, "") + vfprintf(stderr, fmt, ap);
336 }
337
test_flush_stdout(void)338 int test_flush_stdout(void)
339 {
340 return fflush(stdout);
341 }
342
test_flush_stderr(void)343 int test_flush_stderr(void)
344 {
345 return fflush(stderr);
346 }
347
test_vprintf_tapout(const char * fmt,va_list ap)348 int test_vprintf_tapout(const char *fmt, va_list ap)
349 {
350 return fprintf(stdout, "%*s", tap_level, "") + vfprintf(stdout, fmt, ap);
351 }
352
test_vprintf_taperr(const char * fmt,va_list ap)353 int test_vprintf_taperr(const char *fmt, va_list ap)
354 {
355 return fprintf(stderr, "%*s", tap_level, "") + vfprintf(stderr, fmt, ap);
356 }
357
test_flush_tapout(void)358 int test_flush_tapout(void)
359 {
360 return fflush(stdout);
361 }
362
test_flush_taperr(void)363 int test_flush_taperr(void)
364 {
365 return fflush(stderr);
366 }
367