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https://github.com/veracrypt/VeraCrypt.git
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Add original TrueCrypt 7.1a sources
This commit is contained in:
Mounir IDRASSI
367
src/Platform/StringConverter.cpp
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367
src/Platform/StringConverter.cpp
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/*
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Copyright (c) 2008-2009 TrueCrypt Developers Association. All rights reserved.
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Governed by the TrueCrypt License 3.0 the full text of which is contained in
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the file License.txt included in TrueCrypt binary and source code distribution
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packages.
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*/
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#ifdef __GNUC__
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# include <cxxabi.h>
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#endif
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#include <locale>
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#include <typeinfo>
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#include "Buffer.h"
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#include "Exception.h"
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#include "ForEach.h"
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#include "StringConverter.h"
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#include "SystemException.h"
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namespace TrueCrypt
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{
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void StringConverter::Erase (string &str)
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{
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for (size_t i = 0; i < str.size(); ++i)
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{
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str[i] = ' ';
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}
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}
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void StringConverter::Erase (wstring &str)
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{
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for (size_t i = 0; i < str.size(); ++i)
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{
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str[i] = ' ';
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}
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}
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wstring StringConverter::FromNumber (double number)
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{
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wstringstream s;
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s << number;
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return s.str();
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}
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wstring StringConverter::FromNumber (int32 number)
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{
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wstringstream s;
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s << number;
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return s.str();
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}
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wstring StringConverter::FromNumber (uint32 number)
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{
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wstringstream s;
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s << number;
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return s.str();
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}
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wstring StringConverter::FromNumber (int64 number)
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{
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wstringstream s;
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s << number;
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return s.str();
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}
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wstring StringConverter::FromNumber (uint64 number)
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{
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wstringstream s;
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s << number;
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return s.str();
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}
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string StringConverter::GetTrailingNumber (const string &str)
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{
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size_t start = str.find_last_not_of ("0123456789");
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if (start == string::npos)
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return str;
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string s = str.substr (start + 1);
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if (s.empty ())
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throw ParameterIncorrect (SRC_POS);
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return s;
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}
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string StringConverter::GetTypeName (const type_info &typeInfo)
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{
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try
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{
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#ifdef _MSC_VER
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// type_info::name() leaks memory as of MS VC++ 8.0
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string rawName (typeInfo.raw_name());
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size_t cut1 = (rawName.find (".?A") != string::npos) ? 4 : string::npos;
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size_t cut2 = rawName.find ("@");
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size_t cut3 = rawName.find ("@@");
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if (cut1 == string::npos || cut2 == string::npos || cut3 == string::npos)
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return typeInfo.name();
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return rawName.substr (cut2 + 1, cut3 - cut2 - 1) + "::" + rawName.substr (cut1, cut2 - cut1);
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#elif defined (__GNUC__)
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int status;
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char *name = abi::__cxa_demangle (typeInfo.name(), nullptr, nullptr, &status);
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if (name)
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{
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string s (name);
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free (name);
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return s;
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}
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#endif
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}
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catch (...) { }
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return typeInfo.name();
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}
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wstring StringConverter::QuoteSpaces (const wstring &str)
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{
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if (str.find (L' ') == string::npos)
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return str;
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wstring escaped (L"'");
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foreach (wchar_t c, str)
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{
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if (c == L'\'')
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escaped += L'\'';
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escaped += c;
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}
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return escaped + L'\'';
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}
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vector <string> StringConverter::Split (const string &str, const string &separators, bool returnEmptyFields)
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{
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vector <string> elements;
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if (!returnEmptyFields)
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{
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size_t p = 0;
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while ((p = str.find_first_not_of (separators, p)) != string::npos)
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{
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size_t end = str.find_first_of (separators, p);
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if (end == string::npos)
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{
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elements.push_back (str.substr (p));
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break;
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}
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elements.push_back (str.substr (p, end - p));
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p = end;
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}
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}
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else
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{
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string element;
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elements.push_back (element);
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foreach (char c, str)
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{
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if (separators.find (c) != string::npos)
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{
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element.erase();
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elements.push_back (element);
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}
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else
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{
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elements.back() += c;
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}
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}
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}
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return elements;
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}
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string StringConverter::StripTrailingNumber (const string &str)
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{
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size_t start = str.find_last_not_of ("0123456789");
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if (start == string::npos)
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return "";
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return str.substr (0, start + 1);
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}
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wstring StringConverter::ToExceptionString (const exception &ex)
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{
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const SystemException *sysEx = dynamic_cast <const SystemException *> (&ex);
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if (sysEx)
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return ToWide (sysEx->what()) + L": " + sysEx->SystemText() + L": " + sysEx->GetSubject();
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if (ex.what() && !string (ex.what()).empty())
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return ToWide (GetTypeName (typeid (ex)) + ": " + ex.what());
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return ToWide (GetTypeName (typeid (ex)));
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}
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string StringConverter::ToLower (const string &str)
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{
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string s;
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foreach (char c, str)
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s += tolower (c, locale());
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return s;
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}
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string StringConverter::ToSingle (const wstring &wstr, bool noThrow)
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{
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string str;
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ToSingle (wstr, str, noThrow);
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return str;
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}
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void StringConverter::ToSingle (const wstring &wstr, string &str, bool noThrow)
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{
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try
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{
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mbstate_t mbState;
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Memory::Zero (&mbState, sizeof (mbState));
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const wchar_t *src = wstr.c_str();
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size_t size = wcsrtombs (nullptr, &src, 0, &mbState);
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if (size == (size_t) -1)
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throw StringConversionFailed (SRC_POS, wstr);
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vector <char> buf (size + 1);
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Memory::Zero (&mbState, sizeof (mbState));
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if ((size = wcsrtombs (&buf[0], &src, buf.size(), &mbState)) == (size_t) -1)
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throw StringConversionFailed (SRC_POS, wstr);
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str.clear();
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str.insert (0, &buf.front(), size);
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Memory::Erase (&buf.front(), buf.size());
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}
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catch (...)
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{
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if (!noThrow)
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throw;
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}
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}
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uint32 StringConverter::ToUInt32 (const string &str)
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{
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uint32 n;
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stringstream ss (str);
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ss >> n;
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if (ss.fail() || n == 0xffffFFFFU)
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throw ParameterIncorrect (SRC_POS);
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return n;
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}
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uint32 StringConverter::ToUInt32 (const wstring &str)
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{
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uint32 n;
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wstringstream ss (str);
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ss >> n;
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if (ss.fail() || n == 0xffffFFFFU)
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throw ParameterIncorrect (SRC_POS);
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return n;
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}
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uint64 StringConverter::ToUInt64 (const string &str)
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{
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uint64 n;
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stringstream ss (str);
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ss >> n;
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if (ss.fail() || n == 0xffffFFFFffffFFFFULL)
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throw ParameterIncorrect (SRC_POS);
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return n;
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}
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uint64 StringConverter::ToUInt64 (const wstring &str)
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{
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uint64 n;
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wstringstream ss (str);
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ss >> n;
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if (ss.fail() || n == 0xffffFFFFffffFFFFULL)
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throw ParameterIncorrect (SRC_POS);
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return n;
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}
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string StringConverter::ToUpper (const string &str)
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{
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string s;
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foreach (char c, str)
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s += toupper (c, locale());
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return s;
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}
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wstring StringConverter::ToWide (const string &str, bool noThrow)
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{
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try
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{
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mbstate_t mbState;
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Memory::Zero (&mbState, sizeof (mbState));
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const char *src = str.c_str();
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size_t size = mbsrtowcs (nullptr, &src, 0, &mbState);
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if (size == (size_t) -1)
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throw StringConversionFailed (SRC_POS);
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vector <wchar_t> buf (size + 1);
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Memory::Zero (&mbState, sizeof (mbState));
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if ((size = mbsrtowcs (&buf[0], &src, buf.size(), &mbState)) == (size_t) -1)
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throw StringConversionFailed (SRC_POS);
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wstring s;
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s.insert (s.begin(), buf.begin(), buf.begin() + size);
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return s;
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}
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catch (...)
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{
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if (noThrow)
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return L"";
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throw;
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}
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}
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void StringConverter::ToWideBuffer (const wstring &str, wchar_t *buffer, size_t bufferSize)
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{
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if (str.length() < 1)
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{
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buffer[0] = 0;
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return;
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}
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BufferPtr (
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(byte *) buffer,
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bufferSize).CopyFrom (
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ConstBufferPtr ((byte *) (wstring (str).c_str()),
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(str.length() + 1) * sizeof (wchar_t)
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)
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);
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}
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string StringConverter::Trim (const string &str)
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{
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size_t start = 0;
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size_t end = str.size();
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if (end < 1)
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return str;
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foreach (char c, str)
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{
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if (c > ' ')
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break;
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++start;
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}
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foreach_reverse (char c, str)
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{
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if (c > ' ')
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break;
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--end;
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}
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return str.substr (start, end - start);
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}
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}
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