1 /* Copyright (c) 2016, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 16 #include <openssl/bytestring.h> 17 18 #include <assert.h> 19 #include <limits.h> 20 #include <string.h> 21 22 #include <openssl/mem.h> 23 24 #include "internal.h" 25 #include "../internal.h" 26 27 28 int CBB_finish_i2d(CBB *cbb, uint8_t **outp) { 29 assert(cbb->base->can_resize); 30 31 uint8_t *der; 32 size_t der_len; 33 if (!CBB_finish(cbb, &der, &der_len)) { 34 CBB_cleanup(cbb); 35 return -1; 36 } 37 if (der_len > INT_MAX) { 38 OPENSSL_free(der); 39 return -1; 40 } 41 if (outp != NULL) { 42 if (*outp == NULL) { 43 *outp = der; 44 der = NULL; 45 } else { 46 OPENSSL_memcpy(*outp, der, der_len); 47 *outp += der_len; 48 } 49 } 50 OPENSSL_free(der); 51 return (int)der_len; 52 } 53
