David Benjamin
33d1049b1f
We use the standard Apache 2.0 file header, described in "APPENDIX: How to apply the Apache License to your work." This was primarily automated by running: git ls-tree -r --name-only HEAD | xargs go run ./util/relicense.go See go/boringssl-relicensing-triage for the results of triaging the output of the tool. As part of this, switch from taking fiat-crypto under MIT license to Apache 2.0. (It is licensed under MIT OR Apache-2.0 OR BSD-1-Clause.) The copyright_summary tool can also be used to confirm we didn't accidentally drop any copyright lines: # Run before the CL git grep -l Copyright | xargs go run ./util/copyright_summary.go -out /tmp/old.json # Run after the CL git grep -l Copyright | xargs go run ./util/copyright_summary.go -compare /tmp/old.json Bug: 364634028 Change-Id: I17c50e761e9d077a1f92e25969e50ed35e320c59 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/75852 Reviewed-by: Bob Beck <bbe@google.com> Commit-Queue: David Benjamin <davidben@google.com> Reviewed-by: Adam Langley <agl@google.com>
119 lines
2.8 KiB
C++
119 lines
2.8 KiB
C++
// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <openssl/buf.h>
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#include <string.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include "../internal.h"
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BUF_MEM *BUF_MEM_new(void) {
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return reinterpret_cast<BUF_MEM *>(OPENSSL_zalloc(sizeof(BUF_MEM)));
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}
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void BUF_MEM_free(BUF_MEM *buf) {
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if (buf == nullptr) {
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return;
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}
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OPENSSL_free(buf->data);
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OPENSSL_free(buf);
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}
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int BUF_MEM_reserve(BUF_MEM *buf, size_t cap) {
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if (buf->max >= cap) {
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return 1;
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}
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size_t n = cap + 3;
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if (n < cap) {
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OPENSSL_PUT_ERROR(BUF, ERR_R_OVERFLOW);
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return 0;
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}
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n = n / 3;
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size_t alloc_size = n * 4;
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if (alloc_size / 4 != n) {
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OPENSSL_PUT_ERROR(BUF, ERR_R_OVERFLOW);
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return 0;
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}
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char *new_buf =
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reinterpret_cast<char *>(OPENSSL_realloc(buf->data, alloc_size));
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if (new_buf == NULL) {
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return 0;
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}
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buf->data = new_buf;
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buf->max = alloc_size;
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return 1;
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}
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size_t BUF_MEM_grow(BUF_MEM *buf, size_t len) {
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if (!BUF_MEM_reserve(buf, len)) {
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return 0;
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}
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if (buf->length < len) {
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OPENSSL_memset(&buf->data[buf->length], 0, len - buf->length);
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}
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buf->length = len;
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return len;
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}
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size_t BUF_MEM_grow_clean(BUF_MEM *buf, size_t len) {
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return BUF_MEM_grow(buf, len);
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}
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int BUF_MEM_append(BUF_MEM *buf, const void *in, size_t len) {
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// Work around a C language bug. See https://crbug.com/1019588.
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if (len == 0) {
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return 1;
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}
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size_t new_len = buf->length + len;
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if (new_len < len) {
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OPENSSL_PUT_ERROR(BUF, ERR_R_OVERFLOW);
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return 0;
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}
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if (!BUF_MEM_reserve(buf, new_len)) {
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return 0;
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}
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OPENSSL_memcpy(buf->data + buf->length, in, len);
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buf->length = new_len;
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return 1;
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}
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char *BUF_strdup(const char *str) { return OPENSSL_strdup(str); }
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size_t BUF_strnlen(const char *str, size_t max_len) {
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return OPENSSL_strnlen(str, max_len);
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}
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char *BUF_strndup(const char *str, size_t size) {
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return OPENSSL_strndup(str, size);
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}
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size_t BUF_strlcpy(char *dst, const char *src, size_t dst_size) {
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return OPENSSL_strlcpy(dst, src, dst_size);
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}
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size_t BUF_strlcat(char *dst, const char *src, size_t dst_size) {
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return OPENSSL_strlcat(dst, src, dst_size);
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}
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void *BUF_memdup(const void *data, size_t size) {
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return OPENSSL_memdup(data, size);
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}
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