David Benjamin | 4969cc9 | 2016-04-22 15:02:23 -0400 | [diff] [blame^] | 1 | /* ==================================================================== |
| 2 | * Copyright (c) 2006 The OpenSSL Project. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in |
| 13 | * the documentation and/or other materials provided with the |
| 14 | * distribution. |
| 15 | * |
| 16 | * 3. All advertising materials mentioning features or use of this |
| 17 | * software must display the following acknowledgment: |
| 18 | * "This product includes software developed by the OpenSSL Project |
| 19 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| 20 | * |
| 21 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| 22 | * endorse or promote products derived from this software without |
| 23 | * prior written permission. For written permission, please contact |
| 24 | * licensing@OpenSSL.org. |
| 25 | * |
| 26 | * 5. Products derived from this software may not be called "OpenSSL" |
| 27 | * nor may "OpenSSL" appear in their names without prior written |
| 28 | * permission of the OpenSSL Project. |
| 29 | * |
| 30 | * 6. Redistributions of any form whatsoever must retain the following |
| 31 | * acknowledgment: |
| 32 | * "This product includes software developed by the OpenSSL Project |
| 33 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| 34 | * |
| 35 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| 36 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 37 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 38 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 41 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 42 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 43 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| 44 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 45 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| 46 | * OF THE POSSIBILITY OF SUCH DAMAGE. |
| 47 | * ==================================================================== |
| 48 | * |
| 49 | * This product includes cryptographic software written by Eric Young |
| 50 | * (eay@cryptsoft.com). This product includes software written by Tim |
| 51 | * Hudson (tjh@cryptsoft.com). */ |
| 52 | |
| 53 | #include <openssl/evp.h> |
| 54 | |
| 55 | #include <openssl/bio.h> |
| 56 | #include <openssl/bn.h> |
| 57 | #include <openssl/dsa.h> |
| 58 | #include <openssl/ec.h> |
| 59 | #include <openssl/ec_key.h> |
| 60 | #include <openssl/mem.h> |
| 61 | #include <openssl/rsa.h> |
| 62 | |
| 63 | #include "../rsa/internal.h" |
| 64 | |
| 65 | |
| 66 | static int bn_print(BIO *bp, const char *number, const BIGNUM *num, |
| 67 | uint8_t *buf, int off) { |
| 68 | if (num == NULL) { |
| 69 | return 1; |
| 70 | } |
| 71 | |
| 72 | if (!BIO_indent(bp, off, 128)) { |
| 73 | return 0; |
| 74 | } |
| 75 | if (BN_is_zero(num)) { |
| 76 | if (BIO_printf(bp, "%s 0\n", number) <= 0) { |
| 77 | return 0; |
| 78 | } |
| 79 | return 1; |
| 80 | } |
| 81 | |
| 82 | if (BN_num_bytes(num) <= sizeof(long)) { |
| 83 | const char *neg = BN_is_negative(num) ? "-" : ""; |
| 84 | if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg, |
| 85 | (unsigned long)num->d[0], neg, |
| 86 | (unsigned long)num->d[0]) <= 0) { |
| 87 | return 0; |
| 88 | } |
| 89 | } else { |
| 90 | buf[0] = 0; |
| 91 | if (BIO_printf(bp, "%s%s", number, |
| 92 | (BN_is_negative(num)) ? " (Negative)" : "") <= 0) { |
| 93 | return 0; |
| 94 | } |
| 95 | int n = BN_bn2bin(num, &buf[1]); |
| 96 | |
| 97 | if (buf[1] & 0x80) { |
| 98 | n++; |
| 99 | } else { |
| 100 | buf++; |
| 101 | } |
| 102 | |
| 103 | int i; |
| 104 | for (i = 0; i < n; i++) { |
| 105 | if ((i % 15) == 0) { |
| 106 | if (BIO_puts(bp, "\n") <= 0 || |
| 107 | !BIO_indent(bp, off + 4, 128)) { |
| 108 | return 0; |
| 109 | } |
| 110 | } |
| 111 | if (BIO_printf(bp, "%02x%s", buf[i], ((i + 1) == n) ? "" : ":") <= 0) { |
| 112 | return 0; |
| 113 | } |
| 114 | } |
| 115 | if (BIO_write(bp, "\n", 1) <= 0) { |
| 116 | return 0; |
| 117 | } |
| 118 | } |
| 119 | return 1; |
| 120 | } |
| 121 | |
| 122 | static void update_buflen(const BIGNUM *b, size_t *pbuflen) { |
| 123 | size_t i; |
| 124 | |
| 125 | if (!b) { |
| 126 | return; |
| 127 | } |
| 128 | |
| 129 | i = BN_num_bytes(b); |
| 130 | if (*pbuflen < i) { |
| 131 | *pbuflen = i; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | /* RSA keys. */ |
| 136 | |
| 137 | static int do_rsa_print(BIO *out, const RSA *rsa, int off, |
| 138 | int include_private) { |
| 139 | const char *s, *str; |
| 140 | uint8_t *m = NULL; |
| 141 | int ret = 0, mod_len = 0; |
| 142 | size_t buf_len = 0; |
| 143 | |
| 144 | update_buflen(rsa->n, &buf_len); |
| 145 | update_buflen(rsa->e, &buf_len); |
| 146 | |
| 147 | if (include_private) { |
| 148 | update_buflen(rsa->d, &buf_len); |
| 149 | update_buflen(rsa->p, &buf_len); |
| 150 | update_buflen(rsa->q, &buf_len); |
| 151 | update_buflen(rsa->dmp1, &buf_len); |
| 152 | update_buflen(rsa->dmq1, &buf_len); |
| 153 | update_buflen(rsa->iqmp, &buf_len); |
| 154 | |
| 155 | if (rsa->additional_primes != NULL) { |
| 156 | size_t i; |
| 157 | |
| 158 | for (i = 0; i < sk_RSA_additional_prime_num(rsa->additional_primes); |
| 159 | i++) { |
| 160 | const RSA_additional_prime *ap = |
| 161 | sk_RSA_additional_prime_value(rsa->additional_primes, i); |
| 162 | update_buflen(ap->prime, &buf_len); |
| 163 | update_buflen(ap->exp, &buf_len); |
| 164 | update_buflen(ap->coeff, &buf_len); |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | m = (uint8_t *)OPENSSL_malloc(buf_len + 10); |
| 170 | if (m == NULL) { |
| 171 | OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE); |
| 172 | goto err; |
| 173 | } |
| 174 | |
| 175 | if (rsa->n != NULL) { |
| 176 | mod_len = BN_num_bits(rsa->n); |
| 177 | } |
| 178 | |
| 179 | if (!BIO_indent(out, off, 128)) { |
| 180 | goto err; |
| 181 | } |
| 182 | |
| 183 | if (include_private && rsa->d) { |
| 184 | if (BIO_printf(out, "Private-Key: (%d bit)\n", mod_len) <= 0) { |
| 185 | goto err; |
| 186 | } |
| 187 | str = "modulus:"; |
| 188 | s = "publicExponent:"; |
| 189 | } else { |
| 190 | if (BIO_printf(out, "Public-Key: (%d bit)\n", mod_len) <= 0) { |
| 191 | goto err; |
| 192 | } |
| 193 | str = "Modulus:"; |
| 194 | s = "Exponent:"; |
| 195 | } |
| 196 | if (!bn_print(out, str, rsa->n, m, off) || |
| 197 | !bn_print(out, s, rsa->e, m, off)) { |
| 198 | goto err; |
| 199 | } |
| 200 | |
| 201 | if (include_private) { |
| 202 | if (!bn_print(out, "privateExponent:", rsa->d, m, off) || |
| 203 | !bn_print(out, "prime1:", rsa->p, m, off) || |
| 204 | !bn_print(out, "prime2:", rsa->q, m, off) || |
| 205 | !bn_print(out, "exponent1:", rsa->dmp1, m, off) || |
| 206 | !bn_print(out, "exponent2:", rsa->dmq1, m, off) || |
| 207 | !bn_print(out, "coefficient:", rsa->iqmp, m, off)) { |
| 208 | goto err; |
| 209 | } |
| 210 | |
| 211 | if (rsa->additional_primes != NULL && |
| 212 | sk_RSA_additional_prime_num(rsa->additional_primes) > 0) { |
| 213 | size_t i; |
| 214 | |
| 215 | if (BIO_printf(out, "otherPrimeInfos:\n") <= 0) { |
| 216 | goto err; |
| 217 | } |
| 218 | for (i = 0; i < sk_RSA_additional_prime_num(rsa->additional_primes); |
| 219 | i++) { |
| 220 | const RSA_additional_prime *ap = |
| 221 | sk_RSA_additional_prime_value(rsa->additional_primes, i); |
| 222 | |
| 223 | if (BIO_printf(out, "otherPrimeInfo (prime %u):\n", |
| 224 | (unsigned)(i + 3)) <= 0 || |
| 225 | !bn_print(out, "prime:", ap->prime, m, off) || |
| 226 | !bn_print(out, "exponent:", ap->exp, m, off) || |
| 227 | !bn_print(out, "coeff:", ap->coeff, m, off)) { |
| 228 | goto err; |
| 229 | } |
| 230 | } |
| 231 | } |
| 232 | } |
| 233 | ret = 1; |
| 234 | |
| 235 | err: |
| 236 | OPENSSL_free(m); |
| 237 | return ret; |
| 238 | } |
| 239 | |
| 240 | static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 241 | ASN1_PCTX *ctx) { |
| 242 | return do_rsa_print(bp, pkey->pkey.rsa, indent, 0); |
| 243 | } |
| 244 | |
| 245 | static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 246 | ASN1_PCTX *ctx) { |
| 247 | return do_rsa_print(bp, pkey->pkey.rsa, indent, 1); |
| 248 | } |
| 249 | |
| 250 | |
| 251 | /* DSA keys. */ |
| 252 | |
| 253 | static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype) { |
| 254 | uint8_t *m = NULL; |
| 255 | int ret = 0; |
| 256 | size_t buf_len = 0; |
| 257 | const char *ktype = NULL; |
| 258 | |
| 259 | const BIGNUM *priv_key, *pub_key; |
| 260 | |
| 261 | priv_key = NULL; |
| 262 | if (ptype == 2) { |
| 263 | priv_key = x->priv_key; |
| 264 | } |
| 265 | |
| 266 | pub_key = NULL; |
| 267 | if (ptype > 0) { |
| 268 | pub_key = x->pub_key; |
| 269 | } |
| 270 | |
| 271 | ktype = "DSA-Parameters"; |
| 272 | if (ptype == 2) { |
| 273 | ktype = "Private-Key"; |
| 274 | } else if (ptype == 1) { |
| 275 | ktype = "Public-Key"; |
| 276 | } |
| 277 | |
| 278 | update_buflen(x->p, &buf_len); |
| 279 | update_buflen(x->q, &buf_len); |
| 280 | update_buflen(x->g, &buf_len); |
| 281 | update_buflen(priv_key, &buf_len); |
| 282 | update_buflen(pub_key, &buf_len); |
| 283 | |
| 284 | m = (uint8_t *)OPENSSL_malloc(buf_len + 10); |
| 285 | if (m == NULL) { |
| 286 | OPENSSL_PUT_ERROR(EVP, ERR_R_MALLOC_FAILURE); |
| 287 | goto err; |
| 288 | } |
| 289 | |
| 290 | if (priv_key) { |
| 291 | if (!BIO_indent(bp, off, 128) || |
| 292 | BIO_printf(bp, "%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0) { |
| 293 | goto err; |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | if (!bn_print(bp, "priv:", priv_key, m, off) || |
| 298 | !bn_print(bp, "pub: ", pub_key, m, off) || |
| 299 | !bn_print(bp, "P: ", x->p, m, off) || |
| 300 | !bn_print(bp, "Q: ", x->q, m, off) || |
| 301 | !bn_print(bp, "G: ", x->g, m, off)) { |
| 302 | goto err; |
| 303 | } |
| 304 | ret = 1; |
| 305 | |
| 306 | err: |
| 307 | OPENSSL_free(m); |
| 308 | return ret; |
| 309 | } |
| 310 | |
| 311 | static int dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 312 | ASN1_PCTX *ctx) { |
| 313 | return do_dsa_print(bp, pkey->pkey.dsa, indent, 0); |
| 314 | } |
| 315 | |
| 316 | static int dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 317 | ASN1_PCTX *ctx) { |
| 318 | return do_dsa_print(bp, pkey->pkey.dsa, indent, 1); |
| 319 | } |
| 320 | |
| 321 | static int dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 322 | ASN1_PCTX *ctx) { |
| 323 | return do_dsa_print(bp, pkey->pkey.dsa, indent, 2); |
| 324 | } |
| 325 | |
| 326 | |
| 327 | /* EC keys. */ |
| 328 | |
| 329 | static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype) { |
| 330 | uint8_t *buffer = NULL; |
| 331 | const char *ecstr; |
| 332 | size_t buf_len = 0, i; |
| 333 | int ret = 0, reason = ERR_R_BIO_LIB; |
| 334 | BIGNUM *order = NULL; |
| 335 | BN_CTX *ctx = NULL; |
| 336 | const EC_GROUP *group; |
| 337 | const EC_POINT *public_key; |
| 338 | const BIGNUM *priv_key; |
| 339 | uint8_t *pub_key_bytes = NULL; |
| 340 | size_t pub_key_bytes_len = 0; |
| 341 | |
| 342 | if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL) { |
| 343 | reason = ERR_R_PASSED_NULL_PARAMETER; |
| 344 | goto err; |
| 345 | } |
| 346 | |
| 347 | ctx = BN_CTX_new(); |
| 348 | if (ctx == NULL) { |
| 349 | reason = ERR_R_MALLOC_FAILURE; |
| 350 | goto err; |
| 351 | } |
| 352 | |
| 353 | if (ktype > 0) { |
| 354 | public_key = EC_KEY_get0_public_key(x); |
| 355 | if (public_key != NULL) { |
| 356 | pub_key_bytes_len = EC_POINT_point2oct( |
| 357 | group, public_key, EC_KEY_get_conv_form(x), NULL, 0, ctx); |
| 358 | if (pub_key_bytes_len == 0) { |
| 359 | reason = ERR_R_MALLOC_FAILURE; |
| 360 | goto err; |
| 361 | } |
| 362 | pub_key_bytes = OPENSSL_malloc(pub_key_bytes_len); |
| 363 | if (pub_key_bytes == NULL) { |
| 364 | reason = ERR_R_MALLOC_FAILURE; |
| 365 | goto err; |
| 366 | } |
| 367 | pub_key_bytes_len = |
| 368 | EC_POINT_point2oct(group, public_key, EC_KEY_get_conv_form(x), |
| 369 | pub_key_bytes, pub_key_bytes_len, ctx); |
| 370 | if (pub_key_bytes_len == 0) { |
| 371 | reason = ERR_R_MALLOC_FAILURE; |
| 372 | goto err; |
| 373 | } |
| 374 | buf_len = pub_key_bytes_len; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | if (ktype == 2) { |
| 379 | priv_key = EC_KEY_get0_private_key(x); |
| 380 | if (priv_key && (i = (size_t)BN_num_bytes(priv_key)) > buf_len) { |
| 381 | buf_len = i; |
| 382 | } |
| 383 | } else { |
| 384 | priv_key = NULL; |
| 385 | } |
| 386 | |
| 387 | if (ktype > 0) { |
| 388 | buf_len += 10; |
| 389 | if ((buffer = OPENSSL_malloc(buf_len)) == NULL) { |
| 390 | reason = ERR_R_MALLOC_FAILURE; |
| 391 | goto err; |
| 392 | } |
| 393 | } |
| 394 | if (ktype == 2) { |
| 395 | ecstr = "Private-Key"; |
| 396 | } else if (ktype == 1) { |
| 397 | ecstr = "Public-Key"; |
| 398 | } else { |
| 399 | ecstr = "ECDSA-Parameters"; |
| 400 | } |
| 401 | |
| 402 | if (!BIO_indent(bp, off, 128)) { |
| 403 | goto err; |
| 404 | } |
| 405 | order = BN_new(); |
| 406 | if (order == NULL || !EC_GROUP_get_order(group, order, NULL) || |
| 407 | BIO_printf(bp, "%s: (%d bit)\n", ecstr, BN_num_bits(order)) <= 0) { |
| 408 | goto err; |
| 409 | } |
| 410 | |
| 411 | if ((priv_key != NULL) && |
| 412 | !bn_print(bp, "priv:", priv_key, buffer, off)) { |
| 413 | goto err; |
| 414 | } |
| 415 | if (pub_key_bytes != NULL) { |
| 416 | BIO_hexdump(bp, pub_key_bytes, pub_key_bytes_len, off); |
| 417 | } |
| 418 | /* TODO(fork): implement */ |
| 419 | /* |
| 420 | if (!ECPKParameters_print(bp, group, off)) |
| 421 | goto err; */ |
| 422 | ret = 1; |
| 423 | |
| 424 | err: |
| 425 | if (!ret) { |
| 426 | OPENSSL_PUT_ERROR(EVP, reason); |
| 427 | } |
| 428 | OPENSSL_free(pub_key_bytes); |
| 429 | BN_free(order); |
| 430 | BN_CTX_free(ctx); |
| 431 | OPENSSL_free(buffer); |
| 432 | return ret; |
| 433 | } |
| 434 | |
| 435 | static int eckey_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 436 | ASN1_PCTX *ctx) { |
| 437 | return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 0); |
| 438 | } |
| 439 | |
| 440 | static int eckey_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 441 | ASN1_PCTX *ctx) { |
| 442 | return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 1); |
| 443 | } |
| 444 | |
| 445 | |
| 446 | static int eckey_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, |
| 447 | ASN1_PCTX *ctx) { |
| 448 | return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 2); |
| 449 | } |
| 450 | |
| 451 | |
| 452 | typedef struct { |
| 453 | int type; |
| 454 | int (*pub_print)(BIO *out, const EVP_PKEY *pkey, int indent, ASN1_PCTX *pctx); |
| 455 | int (*priv_print)(BIO *out, const EVP_PKEY *pkey, int indent, |
| 456 | ASN1_PCTX *pctx); |
| 457 | int (*param_print)(BIO *out, const EVP_PKEY *pkey, int indent, |
| 458 | ASN1_PCTX *pctx); |
| 459 | } EVP_PKEY_PRINT_METHOD; |
| 460 | |
| 461 | static EVP_PKEY_PRINT_METHOD kPrintMethods[] = { |
| 462 | { |
| 463 | EVP_PKEY_RSA, |
| 464 | rsa_pub_print, |
| 465 | rsa_priv_print, |
| 466 | NULL /* param_print */, |
| 467 | }, |
| 468 | { |
| 469 | EVP_PKEY_DSA, |
| 470 | dsa_pub_print, |
| 471 | dsa_priv_print, |
| 472 | dsa_param_print, |
| 473 | }, |
| 474 | { |
| 475 | EVP_PKEY_EC, |
| 476 | eckey_pub_print, |
| 477 | eckey_priv_print, |
| 478 | eckey_param_print, |
| 479 | }, |
| 480 | }; |
| 481 | |
| 482 | static size_t kPrintMethodsLen = |
| 483 | sizeof(kPrintMethods) / sizeof(kPrintMethods[0]); |
| 484 | |
| 485 | static EVP_PKEY_PRINT_METHOD *find_method(int type) { |
| 486 | size_t i; |
| 487 | for (i = 0; i < kPrintMethodsLen; i++) { |
| 488 | if (kPrintMethods[i].type == type) { |
| 489 | return &kPrintMethods[i]; |
| 490 | } |
| 491 | } |
| 492 | return NULL; |
| 493 | } |
| 494 | |
| 495 | static int print_unsupported(BIO *out, const EVP_PKEY *pkey, int indent, |
| 496 | const char *kstr) { |
| 497 | BIO_indent(out, indent, 128); |
| 498 | BIO_printf(out, "%s algorithm unsupported\n", kstr); |
| 499 | return 1; |
| 500 | } |
| 501 | |
| 502 | int EVP_PKEY_print_public(BIO *out, const EVP_PKEY *pkey, int indent, |
| 503 | ASN1_PCTX *pctx) { |
| 504 | EVP_PKEY_PRINT_METHOD *method = find_method(pkey->type); |
| 505 | if (method != NULL && method->pub_print != NULL) { |
| 506 | return method->pub_print(out, pkey, indent, pctx); |
| 507 | } |
| 508 | return print_unsupported(out, pkey, indent, "Public Key"); |
| 509 | } |
| 510 | |
| 511 | int EVP_PKEY_print_private(BIO *out, const EVP_PKEY *pkey, int indent, |
| 512 | ASN1_PCTX *pctx) { |
| 513 | EVP_PKEY_PRINT_METHOD *method = find_method(pkey->type); |
| 514 | if (method != NULL && method->priv_print != NULL) { |
| 515 | return method->priv_print(out, pkey, indent, pctx); |
| 516 | } |
| 517 | return print_unsupported(out, pkey, indent, "Private Key"); |
| 518 | } |
| 519 | |
| 520 | int EVP_PKEY_print_params(BIO *out, const EVP_PKEY *pkey, int indent, |
| 521 | ASN1_PCTX *pctx) { |
| 522 | EVP_PKEY_PRINT_METHOD *method = find_method(pkey->type); |
| 523 | if (method != NULL && method->param_print != NULL) { |
| 524 | return method->param_print(out, pkey, indent, pctx); |
| 525 | } |
| 526 | return print_unsupported(out, pkey, indent, "Parameters"); |
| 527 | } |