test/bioprinttest.c

   1 /*
   2  * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the OpenSSL license (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/numbers.h"
  16 #include "testutil.h"
  17 #include "testutil/output.h"
  18
  19 #define nelem(x) (int)(sizeof(x) / sizeof((x)[0]))
  20
  21 static int justprint = 0;
  22
  23 static char *fpexpected[][5] = {
  24     /*   0 */ { "0.0000e+00", "0.0000", "0", "0.0000E+00", "0" },
  25     /*   1 */ { "6.7000e-01", "0.6700", "0.67", "6.7000E-01", "0.67" },
  26     /*   2 */ { "6.6667e-01", "0.6667", "0.6667", "6.6667E-01", "0.6667" },
  27     /*   3 */ { "6.6667e-04", "0.0007", "0.0006667", "6.6667E-04", "0.0006667" },
  28     /*   4 */ { "6.6667e-05", "0.0001", "6.667e-05", "6.6667E-05", "6.667E-05" },
  29     /*   5 */ { "6.6667e+00", "6.6667", "6.667", "6.6667E+00", "6.667" },
  30     /*   6 */ { "6.6667e+01", "66.6667", "66.67", "6.6667E+01", "66.67" },
  31     /*   7 */ { "6.6667e+02", "666.6667", "666.7", "6.6667E+02", "666.7" },
  32     /*   8 */ { "6.6667e+03", "6666.6667", "6667", "6.6667E+03", "6667" },
  33     /*   9 */ { "6.6667e+04", "66666.6667", "6.667e+04", "6.6667E+04", "6.667E+04" },
  34     /*  10 */ { "0.00000e+00", "0.00000", "0", "0.00000E+00", "0" },
  35     /*  11 */ { "6.70000e-01", "0.67000", "0.67", "6.70000E-01", "0.67" },
  36     /*  12 */ { "6.66667e-01", "0.66667", "0.66667", "6.66667E-01", "0.66667" },
  37     /*  13 */ { "6.66667e-04", "0.00067", "0.00066667", "6.66667E-04", "0.00066667" },
  38     /*  14 */ { "6.66667e-05", "0.00007", "6.6667e-05", "6.66667E-05", "6.6667E-05" },
  39     /*  15 */ { "6.66667e+00", "6.66667", "6.6667", "6.66667E+00", "6.6667" },
  40     /*  16 */ { "6.66667e+01", "66.66667", "66.667", "6.66667E+01", "66.667" },
  41     /*  17 */ { "6.66667e+02", "666.66667", "666.67", "6.66667E+02", "666.67" },
  42     /*  18 */ { "6.66667e+03", "6666.66667", "6666.7", "6.66667E+03", "6666.7" },
  43     /*  19 */ { "6.66667e+04", "66666.66667", "66667", "6.66667E+04", "66667" },
  44     /*  20 */ { "  0.0000e+00", "      0.0000", "           0", "  0.0000E+00", "           0" },
  45     /*  21 */ { "  6.7000e-01", "      0.6700", "        0.67", "  6.7000E-01", "        0.67" },
  46     /*  22 */ { "  6.6667e-01", "      0.6667", "      0.6667", "  6.6667E-01", "      0.6667" },
  47     /*  23 */ { "  6.6667e-04", "      0.0007", "   0.0006667", "  6.6667E-04", "   0.0006667" },
  48     /*  24 */ { "  6.6667e-05", "      0.0001", "   6.667e-05", "  6.6667E-05", "   6.667E-05" },
  49     /*  25 */ { "  6.6667e+00", "      6.6667", "       6.667", "  6.6667E+00", "       6.667" },
  50     /*  26 */ { "  6.6667e+01", "     66.6667", "       66.67", "  6.6667E+01", "       66.67" },
  51     /*  27 */ { "  6.6667e+02", "    666.6667", "       666.7", "  6.6667E+02", "       666.7" },
  52     /*  28 */ { "  6.6667e+03", "   6666.6667", "        6667", "  6.6667E+03", "        6667" },
  53     /*  29 */ { "  6.6667e+04", "  66666.6667", "   6.667e+04", "  6.6667E+04", "   6.667E+04" },
  54     /*  30 */ { " 0.00000e+00", "     0.00000", "           0", " 0.00000E+00", "           0" },
  55     /*  31 */ { " 6.70000e-01", "     0.67000", "        0.67", " 6.70000E-01", "        0.67" },
  56     /*  32 */ { " 6.66667e-01", "     0.66667", "     0.66667", " 6.66667E-01", "     0.66667" },
  57     /*  33 */ { " 6.66667e-04", "     0.00067", "  0.00066667", " 6.66667E-04", "  0.00066667" },
  58     /*  34 */ { " 6.66667e-05", "     0.00007", "  6.6667e-05", " 6.66667E-05", "  6.6667E-05" },
  59     /*  35 */ { " 6.66667e+00", "     6.66667", "      6.6667", " 6.66667E+00", "      6.6667" },
  60     /*  36 */ { " 6.66667e+01", "    66.66667", "      66.667", " 6.66667E+01", "      66.667" },
  61     /*  37 */ { " 6.66667e+02", "   666.66667", "      666.67", " 6.66667E+02", "      666.67" },
  62     /*  38 */ { " 6.66667e+03", "  6666.66667", "      6666.7", " 6.66667E+03", "      6666.7" },
  63     /*  39 */ { " 6.66667e+04", " 66666.66667", "       66667", " 6.66667E+04", "       66667" },
  64     /*  40 */ { "0e+00", "0", "0", "0E+00", "0" },
  65     /*  41 */ { "7e-01", "1", "0.7", "7E-01", "0.7" },
  66     /*  42 */ { "7e-01", "1", "0.7", "7E-01", "0.7" },
  67     /*  43 */ { "7e-04", "0", "0.0007", "7E-04", "0.0007" },
  68     /*  44 */ { "7e-05", "0", "7e-05", "7E-05", "7E-05" },
  69     /*  45 */ { "7e+00", "7", "7", "7E+00", "7" },
  70     /*  46 */ { "7e+01", "67", "7e+01", "7E+01", "7E+01" },
  71     /*  47 */ { "7e+02", "667", "7e+02", "7E+02", "7E+02" },
  72     /*  48 */ { "7e+03", "6667", "7e+03", "7E+03", "7E+03" },
  73     /*  49 */ { "7e+04", "66667", "7e+04", "7E+04", "7E+04" },
  74     /*  50 */ { "0.000000e+00", "0.000000", "0", "0.000000E+00", "0" },
  75     /*  51 */ { "6.700000e-01", "0.670000", "0.67", "6.700000E-01", "0.67" },
  76     /*  52 */ { "6.666667e-01", "0.666667", "0.666667", "6.666667E-01", "0.666667" },
  77     /*  53 */ { "6.666667e-04", "0.000667", "0.000666667", "6.666667E-04", "0.000666667" },
  78     /*  54 */ { "6.666667e-05", "0.000067", "6.66667e-05", "6.666667E-05", "6.66667E-05" },
  79     /*  55 */ { "6.666667e+00", "6.666667", "6.66667", "6.666667E+00", "6.66667" },
  80     /*  56 */ { "6.666667e+01", "66.666667", "66.6667", "6.666667E+01", "66.6667" },
  81     /*  57 */ { "6.666667e+02", "666.666667", "666.667", "6.666667E+02", "666.667" },
  82     /*  58 */ { "6.666667e+03", "6666.666667", "6666.67", "6.666667E+03", "6666.67" },
  83     /*  59 */ { "6.666667e+04", "66666.666667", "66666.7", "6.666667E+04", "66666.7" },
  84     /*  60 */ { "0.0000e+00", "000.0000", "00000000", "0.0000E+00", "00000000" },
  85     /*  61 */ { "6.7000e-01", "000.6700", "00000.67", "6.7000E-01", "00000.67" },
  86     /*  62 */ { "6.6667e-01", "000.6667", "000.6667", "6.6667E-01", "000.6667" },
  87     /*  63 */ { "6.6667e-04", "000.0007", "0.0006667", "6.6667E-04", "0.0006667" },
  88     /*  64 */ { "6.6667e-05", "000.0001", "6.667e-05", "6.6667E-05", "6.667E-05" },
  89     /*  65 */ { "6.6667e+00", "006.6667", "0006.667", "6.6667E+00", "0006.667" },
  90     /*  66 */ { "6.6667e+01", "066.6667", "00066.67", "6.6667E+01", "00066.67" },
  91     /*  67 */ { "6.6667e+02", "666.6667", "000666.7", "6.6667E+02", "000666.7" },
  92     /*  68 */ { "6.6667e+03", "6666.6667", "00006667", "6.6667E+03", "00006667" },
  93     /*  69 */ { "6.6667e+04", "66666.6667", "6.667e+04", "6.6667E+04", "6.667E+04" },
  94 };
  95
  96 typedef struct z_data_st {
  97     size_t value;
  98     const char *format;
  99     const char *expected;
 100 } z_data;
 101
 102 static z_data zu_data[] = {
 103     { SIZE_MAX, "%zu", (sizeof(size_t) == 4 ? "4294967295"
 104                         : sizeof(size_t) == 8 ? "18446744073709551615"
 105                         : "") },
 106     /*
 107      * in 2-complement, the unsigned number divided by two plus one becomes the
 108      * smallest possible negative signed number of the corresponding type
 109      */
 110     { SIZE_MAX / 2 + 1, "%zi", (sizeof(size_t) == 4 ? "-2147483648"
 111                                 : sizeof(size_t) == 8 ? "-9223372036854775808"
 112                                 : "") },
 113     { 0, "%zu", "0" },
 114     { 0, "%zi", "0" },
 115 };
 116
 117 static int test_zu(int i)
 118 {
 119     char bio_buf[80];
 120     const z_data *data = &zu_data[i];
 121
 122     BIO_snprintf(bio_buf, sizeof(bio_buf) - 1, data->format, data->value);
 123     if (!TEST_str_eq(bio_buf, data->expected))
 124         return 0;
 125     return 1;
 126 }
 127
 128 typedef struct j_data_st {
 129     uint64_t value;
 130     const char *format;
 131     const char *expected;
 132 } j_data;
 133
 134 static j_data jf_data[] = {
 135     { 0xffffffffffffffffU, "%ju", "18446744073709551615" },
 136     { 0xffffffffffffffffU, "%jx", "ffffffffffffffff" },
 137     { 0x8000000000000000U, "%ju", "9223372036854775808" },
 138     /*
 139      * These tests imply two's-complement, but it's the only binary
 140      * representation we support, see test/sanitytest.c...
 141      */
 142     { 0x8000000000000000U, "%ji", "-9223372036854775808" },
 143 };
 144
 145 static int test_j(int i)
 146 {
 147     const j_data *data = &jf_data[i];
 148     char bio_buf[80];
 149
 150     BIO_snprintf(bio_buf, sizeof(bio_buf) - 1, data->format, data->value);
 151     if (!TEST_str_eq(bio_buf, data->expected))
 152         return 0;
 153     return 1;
 154 }
 155
 156
 157 /* Precision and width. */
 158 typedef struct pw_st {
 159     int p;
 160     const char *w;
 161 } pw;
 162
 163 static pw pw_params[] = {
 164     { 4, "" },
 165     { 5, "" },
 166     { 4, "12" },
 167     { 5, "12" },
 168     { 0, "" },
 169     { -1, "" },
 170     { 4, "08" }
 171 };
 172
 173 static int dofptest(int test, double val, const char *width, int prec)
 174 {
 175     static const char *fspecs[] = {
 176         "e", "f", "g", "E", "G"
 177     };
 178     char format[80], result[80];
 179     int ret = 1, i;
 180
 181     for (i = 0; i < nelem(fspecs); i++) {
 182         const char *fspec = fspecs[i];
 183
 184         if (prec >= 0)
 185             BIO_snprintf(format, sizeof(format), "%%%s.%d%s", width, prec,
 186                          fspec);
 187         else
 188             BIO_snprintf(format, sizeof(format), "%%%s%s", width, fspec);
 189         BIO_snprintf(result, sizeof(result), format, val);
 190
 191         if (justprint) {
 192             if (i == 0)
 193                 printf("    /* %d */  { \"%s\"", test, result);
 194             else
 195                 printf(", \"%s\"", result);
 196         } else if (!TEST_str_eq(fpexpected[test][i], result)) {
 197             TEST_info("test %d format=|%s| exp=|%s|, ret=|%s|",
 198                     test, format, fpexpected[test][i], result);
 199             ret = 0;
 200         }
 201     }
 202     if (justprint)
 203         printf(" },\n");
 204     return ret;
 205 }
 206
 207 static int test_fp(int i)
 208 {
 209     static int t = 0;
 210     const double frac = 2.0 / 3.0;
 211     const pw *pwp = &pw_params[i];
 212
 213         if (!TEST_true(dofptest(t++, 0.0, pwp->w, pwp->p))
 214                 || !TEST_true(dofptest(t++, 0.67, pwp->w, pwp->p))
 215                 || !TEST_true(dofptest(t++, frac, pwp->w, pwp->p))
 216                 || !TEST_true(dofptest(t++, frac / 1000, pwp->w, pwp->p))
 217                 || !TEST_true(dofptest(t++, frac / 10000, pwp->w, pwp->p))
 218                 || !TEST_true(dofptest(t++, 6.0 + frac, pwp->w, pwp->p))
 219                 || !TEST_true(dofptest(t++, 66.0 + frac, pwp->w, pwp->p))
 220                 || !TEST_true(dofptest(t++, 666.0 + frac, pwp->w, pwp->p))
 221                 || !TEST_true(dofptest(t++, 6666.0 + frac, pwp->w, pwp->p))
 222                 || !TEST_true(dofptest(t++, 66666.0 + frac, pwp->w, pwp->p)))
 223             return 0;
 224     return 1;
 225 }
 226
 227 static int test_big(void)
 228 {
 229     char buf[80];
 230
 231     /* Test excessively big number. Should fail */
 232     if (!TEST_int_eq(BIO_snprintf(buf, sizeof(buf),
 233                                   "%f\n", 2 * (double)ULONG_MAX), -1))
 234         return 0;
 235     return 1;
 236 }
 237
 238
 239 int test_main(int argc, char **argv)
 240 {
 241     if (argc == 2 && strcmp(argv[1], "-expected") == 0)
 242         justprint = 1;
 243
 244     ADD_TEST(test_big);
 245     ADD_ALL_TESTS(test_fp, nelem(pw_params));
 246     ADD_ALL_TESTS(test_zu, nelem(zu_data));
 247     ADD_ALL_TESTS(test_j, nelem(jf_data));
 248
 249     return run_tests(argv[0]);
 250 }
 251
 252 /*
 253  * Replace testutil output routines.  We do this to eliminate possible sources
 254  * of BIO error
 255  */
 256 void test_open_streams(void)
 257 {
 258 }
 259
 260 void test_close_streams(void)
 261 {
 262 }
 263
 264 /*
 265  * This works out as long as caller doesn't use any "fancy" formats.
 266  * But we are caller's caller, and test_str_eq is the only one called,
 267  * and it uses only "%s", which is not "fancy"...
 268  */
 269 int test_vprintf_stdout(const char *fmt, va_list ap)
 270 {
 271     return vfprintf(stdout, fmt, ap);
 272 }
 273
 274 int test_vprintf_stderr(const char *fmt, va_list ap)
 275 {
 276     return vfprintf(stderr, fmt, ap);
 277 }
 278
 279 int test_flush_stdout(void)
 280 {
 281     return fflush(stdout);
 282 }
 283
 284 int test_flush_stderr(void)
 285 {
 286     return fflush(stderr);
 287 }