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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support
Security advisory:
This version has known vulnerabilities.
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Files
c_src/boringssl/crypto/asn1/a_utctm.cc
// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <openssl/asn1.h>
#include <openssl/bytestring.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/posix_time.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "internal.h"
int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d,
int allow_timezone_offset) {
if (d->type != V_ASN1_UTCTIME) {
return 0;
}
CBS cbs;
CBS_init(&cbs, d->data, (size_t)d->length);
if (!CBS_parse_utc_time(&cbs, tm, allow_timezone_offset)) {
return 0;
}
return 1;
}
int asn1_parse_utc_time(CBS *cbs, ASN1_UTCTIME *out, CBS_ASN1_TAG tag,
int allow_timezone_offset) {
tag = tag == 0 ? CBS_ASN1_UTCTIME : tag;
CBS child;
if (!CBS_get_asn1(cbs, &child, tag) ||
!CBS_parse_utc_time(&child, nullptr, allow_timezone_offset)) {
OPENSSL_PUT_ERROR(ASN1, ASN1_R_DECODE_ERROR);
return 0;
}
if (!ASN1_STRING_set(out, CBS_data(&child), CBS_len(&child))) {
return 0;
}
out->type = V_ASN1_UTCTIME;
return 1;
}
int ASN1_UTCTIME_check(const ASN1_UTCTIME *d) {
return asn1_utctime_to_tm(nullptr, d, /*allow_timezone_offset=*/1);
}
int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str) {
// Although elsewhere we allow timezone offsets with UTCTime, to be compatible
// with some existing misissued certificates, this function is used to
// construct new certificates and can be stricter.
size_t len = strlen(str);
CBS cbs;
CBS_init(&cbs, (const uint8_t *)str, len);
if (!CBS_parse_utc_time(&cbs, /*out_tm=*/nullptr,
/*allow_timezone_offset=*/0)) {
return 0;
}
if (s != nullptr) {
if (!ASN1_STRING_set(s, str, len)) {
return 0;
}
s->type = V_ASN1_UTCTIME;
}
return 1;
}
ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, int64_t posix_time) {
return ASN1_UTCTIME_adj(s, posix_time, 0, 0);
}
ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, int64_t posix_time,
int offset_day, long offset_sec) {
struct tm data;
if (!OPENSSL_posix_to_tm(posix_time, &data)) {
return nullptr;
}
if (offset_day || offset_sec) {
if (!OPENSSL_gmtime_adj(&data, offset_day, offset_sec)) {
return nullptr;
}
}
if (data.tm_year < 50 || data.tm_year >= 150) {
return nullptr;
}
char buf[14];
int ret = snprintf(buf, sizeof(buf), "%02d%02d%02d%02d%02d%02dZ",
data.tm_year % 100, data.tm_mon + 1, data.tm_mday,
data.tm_hour, data.tm_min, data.tm_sec);
// |snprintf| must write exactly 15 bytes (plus the NUL) to the buffer.
BSSL_CHECK(ret == static_cast<int>(sizeof(buf) - 1));
int free_s = 0;
if (s == nullptr) {
free_s = 1;
s = ASN1_UTCTIME_new();
if (s == nullptr) {
return nullptr;
}
}
if (!ASN1_STRING_set(s, buf, strlen(buf))) {
if (free_s) {
ASN1_UTCTIME_free(s);
}
return nullptr;
}
s->type = V_ASN1_UTCTIME;
return s;
}