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-rw-r--r--src/lib/dns/rdata/generic/detail/char_string.cc267
1 files changed, 0 insertions, 267 deletions
diff --git a/src/lib/dns/rdata/generic/detail/char_string.cc b/src/lib/dns/rdata/generic/detail/char_string.cc
deleted file mode 100644
index 1d150ed8e5..0000000000
--- a/src/lib/dns/rdata/generic/detail/char_string.cc
+++ /dev/null
@@ -1,267 +0,0 @@
-// Copyright (C) 2012-2024 Internet Systems Consortium, Inc. ("ISC")
-//
-// This Source Code Form is subject to the terms of the Mozilla Public
-// License, v. 2.0. If a copy of the MPL was not distributed with this
-// file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-#include <config.h>
-
-#include <exceptions/exceptions.h>
-
-#include <dns/exceptions.h>
-#include <dns/rdata.h>
-#include <dns/master_lexer.h>
-#include <dns/rdata/generic/detail/char_string.h>
-#include <util/buffer.h>
-
-#include <boost/lexical_cast.hpp>
-
-#include <cassert>
-#include <cctype>
-#include <cstring>
-#include <vector>
-
-#include <stdint.h>
-
-namespace isc {
-namespace dns {
-namespace rdata {
-namespace generic {
-namespace detail {
-
-namespace {
-// Convert a DDD form to the corresponding integer
-int
-decimalToNumber(const char* s, const char* s_end) {
- if (s_end - s < 3) {
- isc_throw(InvalidRdataText, "Escaped digits too short");
- }
-
- const std::string num_str(s, s + 3);
- try {
- const int i = boost::lexical_cast<int>(num_str);
- if (i > 255) {
- isc_throw(InvalidRdataText, "Escaped digits too large: "
- << num_str);
- }
- return (i);
- } catch (const boost::bad_lexical_cast&) {
- isc_throw(InvalidRdataText,
- "Invalid form for escaped digits: " << num_str);
- }
-}
-}
-
-void
-stringToCharString(const MasterToken::StringRegion& str_region,
- CharString& result)
-{
- // make a space for the 1-byte length field; filled in at the end
- result.push_back(0);
-
- bool escape = false;
- const char* s = str_region.beg;
- const char* const s_end = str_region.beg + str_region.len;
-
- for (size_t n = str_region.len; n != 0; --n, ++s) {
- int c = (*s & 0xff);
- if (escape && std::isdigit(c) != 0) {
- c = decimalToNumber(s, s_end);
- assert(n >= 3);
- n -= 2;
- s += 2;
- } else if (!escape && c == '\\') {
- escape = true;
- continue;
- }
- escape = false;
- result.push_back(c);
- }
- if (escape) { // terminated by non-escaped '\'
- isc_throw(InvalidRdataText, "character-string ends with '\\'");
- }
- if (result.size() > MAX_CHARSTRING_LEN + 1) { // '+ 1' due to the len field
- isc_throw(CharStringTooLong, "character-string is too long: " <<
- (result.size() - 1) << "(+1) characters");
- }
- result[0] = result.size() - 1;
-}
-
-void
-stringToCharStringData(const MasterToken::StringRegion& str_region,
- CharStringData& result)
-{
- bool escape = false;
- const char* s = str_region.beg;
- const char* const s_end = str_region.beg + str_region.len;
-
- for (size_t n = str_region.len; n != 0; --n, ++s) {
- int c = (*s & 0xff);
- if (escape && std::isdigit(c) != 0) {
- c = decimalToNumber(s, s_end);
- // decimalToNumber() already throws if (s_end - s) is less
- // than 3, so the following assertion is unnecessary. But we
- // assert it anyway. 'n' is an unsigned type (size_t) and
- // can underflow.
- assert(n >= 3);
- // 'n' and 's' are also updated by 1 in the for statement's
- // expression, so we update them by 2 instead of 3 here.
- n -= 2;
- s += 2;
- } else if (!escape && c == '\\') {
- escape = true;
- continue;
- }
- escape = false;
- result.push_back(c);
- }
- if (escape) { // terminated by non-escaped '\'
- isc_throw(InvalidRdataText, "character-string ends with '\\'");
- }
-}
-
-std::string
-charStringToString(const CharString& char_string) {
- std::string s;
- bool first = true;
- for (auto const& it : char_string) {
- if (first) {
- first = false;
- continue;
- }
- const uint8_t ch = it;
- if ((ch < 0x20) || (ch >= 0x7f)) {
- // convert to escaped \xxx (decimal) format
- s.push_back('\\');
- s.push_back('0' + ((ch / 100) % 10));
- s.push_back('0' + ((ch / 10) % 10));
- s.push_back('0' + (ch % 10));
- continue;
- }
- if ((ch == '"') || (ch == ';') || (ch == '\\')) {
- s.push_back('\\');
- }
- s.push_back(ch);
- }
-
- return (s);
-}
-
-std::string
-charStringDataToString(const CharStringData& char_string) {
- std::string s;
- for (auto const& it : char_string) {
- const uint8_t ch = it;
- if ((ch < 0x20) || (ch >= 0x7f)) {
- // convert to escaped \xxx (decimal) format
- s.push_back('\\');
- s.push_back('0' + ((ch / 100) % 10));
- s.push_back('0' + ((ch / 10) % 10));
- s.push_back('0' + (ch % 10));
- continue;
- }
- if ((ch == '"') || (ch == ';') || (ch == '\\')) {
- s.push_back('\\');
- }
- s.push_back(ch);
- }
-
- return (s);
-}
-
-int compareCharStrings(const detail::CharString& self,
- const detail::CharString& other) {
- if (self.size() == 0 && other.size() == 0) {
- return (0);
- }
- if (self.size() == 0) {
- return (-1);
- }
- if (other.size() == 0) {
- return (1);
- }
- const size_t self_len = self[0];
- const size_t other_len = other[0];
- const size_t cmp_len = std::min(self_len, other_len);
- if (cmp_len == 0) {
- if (self_len < other_len) {
- return (-1);
- } else if (self_len > other_len) {
- return (1);
- } else {
- return (0);
- }
- }
- const int cmp = std::memcmp(&self[1], &other[1], cmp_len);
- if (cmp < 0) {
- return (-1);
- } else if (cmp > 0) {
- return (1);
- } else if (self_len < other_len) {
- return (-1);
- } else if (self_len > other_len) {
- return (1);
- } else {
- return (0);
- }
-}
-
-int compareCharStringDatas(const detail::CharStringData& self,
- const detail::CharStringData& other) {
- if (self.size() == 0 && other.size() == 0) {
- return (0);
- }
- if (self.size() == 0) {
- return (-1);
- }
- if (other.size() == 0) {
- return (1);
- }
- const size_t self_len = self.size();
- const size_t other_len = other.size();
- const size_t cmp_len = std::min(self_len, other_len);
- const int cmp = std::memcmp(&self[0], &other[0], cmp_len);
- if (cmp < 0) {
- return (-1);
- } else if (cmp > 0) {
- return (1);
- } else if (self_len < other_len) {
- return (-1);
- } else if (self_len > other_len) {
- return (1);
- } else {
- return (0);
- }
-}
-
-size_t
-bufferToCharString(isc::util::InputBuffer& buffer, size_t rdata_len,
- CharString& target) {
- if (rdata_len < 1 || buffer.getLength() - buffer.getPosition() < 1) {
- isc_throw(isc::dns::DNSMessageFORMERR,
- "insufficient data to read character-string length");
- }
- const uint8_t len = buffer.readUint8();
- if (rdata_len < len + 1) {
- isc_throw(isc::dns::DNSMessageFORMERR,
- "character string length is too large: " <<
- static_cast<int>(len));
- }
- if (buffer.getLength() - buffer.getPosition() < len) {
- isc_throw(isc::dns::DNSMessageFORMERR,
- "not enough data in buffer to read character-string of len"
- << static_cast<int>(len));
- }
-
- target.resize(len + 1);
- target[0] = len;
- buffer.readData(&target[0] + 1, len);
-
- return (len + 1);
-}
-
-} // end of detail
-} // end of generic
-} // end of rdata
-} // end of dns
-} // end of isc
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 06:46:50 +0100