src/test/test-hexdecoct.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2010 Lennart Poettering
   6 ***/
   7
   8 #include <errno.h>
   9
  10 #include "alloc-util.h"
  11 #include "hexdecoct.h"
  12 #include "macro.h"
  13 #include "string-util.h"
  14
  15 static void test_hexchar(void) {
  16         assert_se(hexchar(0xa) == 'a');
  17         assert_se(hexchar(0x0) == '0');
  18 }
  19
  20 static void test_unhexchar(void) {
  21         assert_se(unhexchar('a') == 0xA);
  22         assert_se(unhexchar('A') == 0xA);
  23         assert_se(unhexchar('0') == 0x0);
  24 }
  25
  26 static void test_base32hexchar(void) {
  27         assert_se(base32hexchar(0) == '0');
  28         assert_se(base32hexchar(9) == '9');
  29         assert_se(base32hexchar(10) == 'A');
  30         assert_se(base32hexchar(31) == 'V');
  31 }
  32
  33 static void test_unbase32hexchar(void) {
  34         assert_se(unbase32hexchar('0') == 0);
  35         assert_se(unbase32hexchar('9') == 9);
  36         assert_se(unbase32hexchar('A') == 10);
  37         assert_se(unbase32hexchar('V') == 31);
  38         assert_se(unbase32hexchar('=') == -EINVAL);
  39 }
  40
  41 static void test_base64char(void) {
  42         assert_se(base64char(0) == 'A');
  43         assert_se(base64char(26) == 'a');
  44         assert_se(base64char(63) == '/');
  45 }
  46
  47 static void test_unbase64char(void) {
  48         assert_se(unbase64char('A') == 0);
  49         assert_se(unbase64char('Z') == 25);
  50         assert_se(unbase64char('a') == 26);
  51         assert_se(unbase64char('z') == 51);
  52         assert_se(unbase64char('0') == 52);
  53         assert_se(unbase64char('9') == 61);
  54         assert_se(unbase64char('+') == 62);
  55         assert_se(unbase64char('/') == 63);
  56         assert_se(unbase64char('=') == -EINVAL);
  57 }
  58
  59 static void test_octchar(void) {
  60         assert_se(octchar(00) == '0');
  61         assert_se(octchar(07) == '7');
  62 }
  63
  64 static void test_unoctchar(void) {
  65         assert_se(unoctchar('0') == 00);
  66         assert_se(unoctchar('7') == 07);
  67 }
  68
  69 static void test_decchar(void) {
  70         assert_se(decchar(0) == '0');
  71         assert_se(decchar(9) == '9');
  72 }
  73
  74 static void test_undecchar(void) {
  75         assert_se(undecchar('0') == 0);
  76         assert_se(undecchar('9') == 9);
  77 }
  78
  79 static void test_unhexmem_one(const char *s, size_t l, int retval) {
  80         _cleanup_free_ char *hex = NULL;
  81         _cleanup_free_ void *mem = NULL;
  82         size_t len;
  83
  84         assert_se(unhexmem(s, l, &mem, &len) == retval);
  85         if (retval == 0) {
  86                 char *answer;
  87
  88                 if (l == (size_t) - 1)
  89                         l = strlen(s);
  90
  91                 assert_se((hex = hexmem(mem, len)));
  92                 answer = strndupa(s, l);
  93                 assert_se(streq(delete_chars(answer, WHITESPACE), hex));
  94         }
  95 }
  96
  97 static void test_unhexmem(void) {
  98         const char *hex = "efa2149213";
  99         const char *hex_space = "  e f   a\n 2\r  14\n\r\t9\t2 \n1\r3 \r\r\t";
 100         const char *hex_invalid = "efa214921o";
 101
 102         test_unhexmem_one(NULL, 0, 0);
 103         test_unhexmem_one("", 0, 0);
 104         test_unhexmem_one("", (size_t) -1, 0);
 105         test_unhexmem_one("   \n \t\r   \t\t \n\n\n", (size_t) -1, 0);
 106         test_unhexmem_one(hex_invalid, strlen(hex_invalid), -EINVAL);
 107         test_unhexmem_one(hex_invalid, (size_t) - 1, -EINVAL);
 108         test_unhexmem_one(hex, strlen(hex) - 1, -EPIPE);
 109         test_unhexmem_one(hex, strlen(hex), 0);
 110         test_unhexmem_one(hex, (size_t) -1, 0);
 111         test_unhexmem_one(hex_space, strlen(hex_space), 0);
 112         test_unhexmem_one(hex_space, (size_t) -1, 0);
 113 }
 114
 115 /* https://tools.ietf.org/html/rfc4648#section-10 */
 116 static void test_base32hexmem(void) {
 117         char *b32;
 118
 119         b32 = base32hexmem("", STRLEN(""), true);
 120         assert_se(b32);
 121         assert_se(streq(b32, ""));
 122         free(b32);
 123
 124         b32 = base32hexmem("f", STRLEN("f"), true);
 125         assert_se(b32);
 126         assert_se(streq(b32, "CO======"));
 127         free(b32);
 128
 129         b32 = base32hexmem("fo", STRLEN("fo"), true);
 130         assert_se(b32);
 131         assert_se(streq(b32, "CPNG===="));
 132         free(b32);
 133
 134         b32 = base32hexmem("foo", STRLEN("foo"), true);
 135         assert_se(b32);
 136         assert_se(streq(b32, "CPNMU==="));
 137         free(b32);
 138
 139         b32 = base32hexmem("foob", STRLEN("foob"), true);
 140         assert_se(b32);
 141         assert_se(streq(b32, "CPNMUOG="));
 142         free(b32);
 143
 144         b32 = base32hexmem("fooba", STRLEN("fooba"), true);
 145         assert_se(b32);
 146         assert_se(streq(b32, "CPNMUOJ1"));
 147         free(b32);
 148
 149         b32 = base32hexmem("foobar", STRLEN("foobar"), true);
 150         assert_se(b32);
 151         assert_se(streq(b32, "CPNMUOJ1E8======"));
 152         free(b32);
 153
 154         b32 = base32hexmem("", STRLEN(""), false);
 155         assert_se(b32);
 156         assert_se(streq(b32, ""));
 157         free(b32);
 158
 159         b32 = base32hexmem("f", STRLEN("f"), false);
 160         assert_se(b32);
 161         assert_se(streq(b32, "CO"));
 162         free(b32);
 163
 164         b32 = base32hexmem("fo", STRLEN("fo"), false);
 165         assert_se(b32);
 166         assert_se(streq(b32, "CPNG"));
 167         free(b32);
 168
 169         b32 = base32hexmem("foo", STRLEN("foo"), false);
 170         assert_se(b32);
 171         assert_se(streq(b32, "CPNMU"));
 172         free(b32);
 173
 174         b32 = base32hexmem("foob", STRLEN("foob"), false);
 175         assert_se(b32);
 176         assert_se(streq(b32, "CPNMUOG"));
 177         free(b32);
 178
 179         b32 = base32hexmem("fooba", STRLEN("fooba"), false);
 180         assert_se(b32);
 181         assert_se(streq(b32, "CPNMUOJ1"));
 182         free(b32);
 183
 184         b32 = base32hexmem("foobar", STRLEN("foobar"), false);
 185         assert_se(b32);
 186         assert_se(streq(b32, "CPNMUOJ1E8"));
 187         free(b32);
 188 }
 189
 190 static void test_unbase32hexmem_one(const char *hex, bool padding, int retval, const char *ans) {
 191         _cleanup_free_ void *mem = NULL;
 192         size_t len;
 193
 194         assert_se(unbase32hexmem(hex, (size_t) -1, padding, &mem, &len) == retval);
 195         if (retval == 0) {
 196                 char *str;
 197
 198                 str = strndupa(mem, len);
 199                 assert_se(streq(str, ans));
 200         }
 201 }
 202
 203 static void test_unbase32hexmem(void) {
 204         test_unbase32hexmem_one("", true, 0, "");
 205
 206         test_unbase32hexmem_one("CO======", true, 0, "f");
 207         test_unbase32hexmem_one("CPNG====", true, 0, "fo");
 208         test_unbase32hexmem_one("CPNMU===", true, 0, "foo");
 209         test_unbase32hexmem_one("CPNMUOG=", true, 0, "foob");
 210         test_unbase32hexmem_one("CPNMUOJ1", true, 0, "fooba");
 211         test_unbase32hexmem_one("CPNMUOJ1E8======", true, 0, "foobar");
 212
 213         test_unbase32hexmem_one("A", true, -EINVAL, NULL);
 214         test_unbase32hexmem_one("A=======", true, -EINVAL, NULL);
 215         test_unbase32hexmem_one("AAA=====", true, -EINVAL, NULL);
 216         test_unbase32hexmem_one("AAAAAA==", true, -EINVAL, NULL);
 217         test_unbase32hexmem_one("AB======", true, -EINVAL, NULL);
 218         test_unbase32hexmem_one("AAAB====", true, -EINVAL, NULL);
 219         test_unbase32hexmem_one("AAAAB===", true, -EINVAL, NULL);
 220         test_unbase32hexmem_one("AAAAAAB=", true, -EINVAL, NULL);
 221
 222         test_unbase32hexmem_one("XPNMUOJ1", true, -EINVAL, NULL);
 223         test_unbase32hexmem_one("CXNMUOJ1", true, -EINVAL, NULL);
 224         test_unbase32hexmem_one("CPXMUOJ1", true, -EINVAL, NULL);
 225         test_unbase32hexmem_one("CPNXUOJ1", true, -EINVAL, NULL);
 226         test_unbase32hexmem_one("CPNMXOJ1", true, -EINVAL, NULL);
 227         test_unbase32hexmem_one("CPNMUXJ1", true, -EINVAL, NULL);
 228         test_unbase32hexmem_one("CPNMUOX1", true, -EINVAL, NULL);
 229         test_unbase32hexmem_one("CPNMUOJX", true, -EINVAL, NULL);
 230
 231         test_unbase32hexmem_one("", false, 0, "");
 232         test_unbase32hexmem_one("CO", false, 0, "f");
 233         test_unbase32hexmem_one("CPNG", false, 0, "fo");
 234         test_unbase32hexmem_one("CPNMU", false, 0, "foo");
 235         test_unbase32hexmem_one("CPNMUOG", false, 0, "foob");
 236         test_unbase32hexmem_one("CPNMUOJ1", false, 0, "fooba");
 237         test_unbase32hexmem_one("CPNMUOJ1E8", false, 0, "foobar");
 238         test_unbase32hexmem_one("CPNMUOG=", false, -EINVAL, NULL);
 239         test_unbase32hexmem_one("CPNMUOJ1E8======", false, -EINVAL, NULL);
 240
 241         test_unbase32hexmem_one("A", false, -EINVAL, NULL);
 242         test_unbase32hexmem_one("A", false, -EINVAL, NULL);
 243         test_unbase32hexmem_one("AAA", false, -EINVAL, NULL);
 244         test_unbase32hexmem_one("AAAAAA", false, -EINVAL, NULL);
 245         test_unbase32hexmem_one("AB", false, -EINVAL, NULL);
 246         test_unbase32hexmem_one("AAAB", false, -EINVAL, NULL);
 247         test_unbase32hexmem_one("AAAAB", false, -EINVAL, NULL);
 248         test_unbase32hexmem_one("AAAAAAB", false, -EINVAL, NULL);
 249 }
 250
 251 /* https://tools.ietf.org/html/rfc4648#section-10 */
 252 static void test_base64mem(void) {
 253         char *b64;
 254
 255         assert_se(base64mem("", STRLEN(""), &b64) == 0);
 256         assert_se(streq(b64, ""));
 257         free(b64);
 258
 259         assert_se(base64mem("f", STRLEN("f"), &b64) == 4);
 260         assert_se(streq(b64, "Zg=="));
 261         free(b64);
 262
 263         assert_se(base64mem("fo", STRLEN("fo"), &b64) == 4);
 264         assert_se(streq(b64, "Zm8="));
 265         free(b64);
 266
 267         assert_se(base64mem("foo", STRLEN("foo"), &b64) == 4);
 268         assert_se(streq(b64, "Zm9v"));
 269         free(b64);
 270
 271         assert_se(base64mem("foob", STRLEN("foob"), &b64) == 8);
 272         assert_se(streq(b64, "Zm9vYg=="));
 273         free(b64);
 274
 275         assert_se(base64mem("fooba", STRLEN("fooba"), &b64) == 8);
 276         assert_se(streq(b64, "Zm9vYmE="));
 277         free(b64);
 278
 279         assert_se(base64mem("foobar", STRLEN("foobar"), &b64) == 8);
 280         assert_se(streq(b64, "Zm9vYmFy"));
 281         free(b64);
 282 }
 283
 284 static void test_unbase64mem_one(const char *input, const char *output, int ret) {
 285         _cleanup_free_ void *buffer = NULL;
 286         size_t size = 0;
 287
 288         assert_se(unbase64mem(input, (size_t) -1, &buffer, &size) == ret);
 289
 290         if (ret >= 0) {
 291                 assert_se(size == strlen(output));
 292                 assert_se(memcmp(buffer, output, size) == 0);
 293                 assert_se(((char*) buffer)[size] == 0);
 294         }
 295 }
 296
 297 static void test_unbase64mem(void) {
 298
 299         test_unbase64mem_one("", "", 0);
 300         test_unbase64mem_one("Zg==", "f", 0);
 301         test_unbase64mem_one("Zm8=", "fo", 0);
 302         test_unbase64mem_one("Zm9v", "foo", 0);
 303         test_unbase64mem_one("Zm9vYg==", "foob", 0);
 304         test_unbase64mem_one("Zm9vYmE=", "fooba", 0);
 305         test_unbase64mem_one("Zm9vYmFy", "foobar", 0);
 306
 307         test_unbase64mem_one(" ", "", 0);
 308         test_unbase64mem_one(" \n\r ", "", 0);
 309         test_unbase64mem_one("    Zg\n==       ", "f", 0);
 310         test_unbase64mem_one(" Zm 8=\r", "fo", 0);
 311         test_unbase64mem_one("  Zm9\n\r\r\nv   ", "foo", 0);
 312         test_unbase64mem_one(" Z m9vYg==\n\r", "foob", 0);
 313         test_unbase64mem_one(" Zm 9vYmE=   ", "fooba", 0);
 314         test_unbase64mem_one("   Z m9v    YmFy   ", "foobar", 0);
 315
 316         test_unbase64mem_one("A", NULL, -EPIPE);
 317         test_unbase64mem_one("A====", NULL, -EINVAL);
 318         test_unbase64mem_one("AAB==", NULL, -EINVAL);
 319         test_unbase64mem_one(" A A A B = ", NULL, -EINVAL);
 320         test_unbase64mem_one(" Z m 8 = q u u x ", NULL, -ENAMETOOLONG);
 321 }
 322
 323 static void test_hexdump(void) {
 324         uint8_t data[146];
 325         unsigned i;
 326
 327         hexdump(stdout, NULL, 0);
 328         hexdump(stdout, "", 0);
 329         hexdump(stdout, "", 1);
 330         hexdump(stdout, "x", 1);
 331         hexdump(stdout, "x", 2);
 332         hexdump(stdout, "foobar", 7);
 333         hexdump(stdout, "f\nobar", 7);
 334         hexdump(stdout, "xxxxxxxxxxxxxxxxxxxxyz", 23);
 335
 336         for (i = 0; i < ELEMENTSOF(data); i++)
 337                 data[i] = i*2;
 338
 339         hexdump(stdout, data, sizeof(data));
 340 }
 341
 342 int main(int argc, char *argv[]) {
 343         test_hexchar();
 344         test_unhexchar();
 345         test_base32hexchar();
 346         test_unbase32hexchar();
 347         test_base64char();
 348         test_unbase64char();
 349         test_octchar();
 350         test_unoctchar();
 351         test_decchar();
 352         test_undecchar();
 353         test_unhexmem();
 354         test_base32hexmem();
 355         test_unbase32hexmem();
 356         test_base64mem();
 357         test_unbase64mem();
 358         test_hexdump();
 359
 360         return 0;
 361 }