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StringUtils.cpp
Go to the documentation of this file.
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/************************************************************
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*
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* StringUtils.cpp
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*
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*/
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/************************************************************
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-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA1
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* OPEN TRANSACTIONS
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*
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* Financial Cryptography and Digital Cash
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* Library, Protocol, API, Server, CLI, GUI
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*
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* -- Anonymous Numbered Accounts.
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* -- Untraceable Digital Cash.
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* -- Triple-Signed Receipts.
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* -- Cheques, Vouchers, Transfers, Inboxes.
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* -- Basket Currencies, Markets, Payment Plans.
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* -- Signed, XML, Ricardian-style Contracts.
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* -- Scripted smart contracts.
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*
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* Copyright (C) 2010-2013 by "Fellow Traveler" (A pseudonym)
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*
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* EMAIL:
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*
[email protected]
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*
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* BITCOIN: 1NtTPVVjDsUfDWybS4BwvHpG2pdS9RnYyQ
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*
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* KEY FINGERPRINT (PGP Key in license file):
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* 9DD5 90EB 9292 4B48 0484 7910 0308 00ED F951 BB8E
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*
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* OFFICIAL PROJECT WIKI(s):
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* https://github.com/FellowTraveler/Moneychanger
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* https://github.com/FellowTraveler/Open-Transactions/wiki
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*
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* WEBSITE:
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* http://www.OpenTransactions.org/
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*
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* Components and licensing:
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* -- Moneychanger..A Java client GUI.....LICENSE:.....GPLv3
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* -- otlib.........A class library.......LICENSE:...LAGPLv3
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* -- otapi.........A client API..........LICENSE:...LAGPLv3
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* -- opentxs/ot....Command-line client...LICENSE:...LAGPLv3
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* -- otserver......Server Application....LICENSE:....AGPLv3
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* Github.com/FellowTraveler/Open-Transactions/wiki/Components
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*
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* All of the above OT components were designed and written by
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* Fellow Traveler, with the exception of Moneychanger, which
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* was contracted out to Vicky C (
[email protected]
).
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* The open-source community has since actively contributed.
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*
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* -----------------------------------------------------
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*
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* LICENSE:
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* This program is free software: you can redistribute it
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* and/or modify it under the terms of the GNU Affero
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* General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* ADDITIONAL PERMISSION under the GNU Affero GPL version 3
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* section 7: (This paragraph applies only to the LAGPLv3
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* components listed above.) If you modify this Program, or
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* any covered work, by linking or combining it with other
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* code, such other code is not for that reason alone subject
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* to any of the requirements of the GNU Affero GPL version 3.
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* (==> This means if you are only using the OT API, then you
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* don't have to open-source your code--only your changes to
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* Open-Transactions itself must be open source. Similar to
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* LGPLv3, except it applies to software-as-a-service, not
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* just to distributing binaries.)
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*
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* Extra WAIVER for OpenSSL, Lucre, and all other libraries
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* used by Open Transactions: This program is released under
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* the AGPL with the additional exemption that compiling,
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* linking, and/or using OpenSSL is allowed. The same is true
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* for any other open source libraries included in this
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* project: complete waiver from the AGPL is hereby granted to
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* compile, link, and/or use them with Open-Transactions,
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* according to their own terms, as long as the rest of the
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* Open-Transactions terms remain respected, with regard to
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* the Open-Transactions code itself.
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*
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* Lucre License:
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* This code is also "dual-license", meaning that Ben Lau-
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* rie's license must also be included and respected, since
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* the code for Lucre is also included with Open Transactions.
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* See Open-Transactions/src/otlib/lucre/LUCRE_LICENSE.txt
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* The Laurie requirements are light, but if there is any
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* problem with his license, simply remove the Lucre code.
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* Although there are no other blind token algorithms in Open
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* Transactions (yet. credlib is coming), the other functions
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* will continue to operate.
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* See Lucre on Github: https://github.com/benlaurie/lucre
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* -----------------------------------------------------
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* You should have received a copy of the GNU Affero General
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* Public License along with this program. If not, see:
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* http://www.gnu.org/licenses/
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*
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* If you would like to use this software outside of the free
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* software license, please contact FellowTraveler.
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* (Unfortunately many will run anonymously and untraceably,
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* so who could really stop them?)
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*
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* DISCLAIMER:
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* This program is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Affero General Public License for
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* more details.
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**************************************************************/
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#include "
util/StringUtils.hpp
"
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#include "
util/Assert.hpp
"
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namespace
opentxs
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{
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// If 10 is passed in, then 11 will be allocated,
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// then the data is copied, and then the result[10] (11th element)
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// is set to 0. This way the original 10-length string is untouched.
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//
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char
*
str_dup2
(
const
char
* str, uint32_t length)
// length doesn't/shouldn't
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// include the byte for the
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// terminating 0.
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{
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char
* str_new =
new
char
[length + 1];
// CREATE EXTRA BYTE OF SPACE FOR \0
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// (NOT PART OF LENGTH)
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OT_ASSERT
(
nullptr
!= str_new);
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#ifdef _WIN32
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strncpy_s(str_new, length + 1, str, length);
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#else
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strncpy(str_new, str, length);
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#endif
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// INITIALIZE EXTRA BYTE OF SPACE
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//
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// If length is 10, then buffer is created with 11 elements,
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// indexed from 0 (first element) through 10 (11th element).
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//
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// Therefore str_new[length==10] is the 11th element, which was
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// the extra one created on our buffer, to store the \0 null terminator.
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//
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// This way I know I'm never cutting off data that was in the string itself.
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// Rather, I am only setting to 0 an EXTRA byte that I created myself, AFTER
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// the string's length itself.
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//
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str_new[length] =
'\0'
;
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return
str_new;
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}
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}
// namespace opentxs
opentxs::str_dup2
char * str_dup2(const char *str, uint32_t length)
Definition:
StringUtils.cpp:143
Assert.hpp
OT_ASSERT
#define OT_ASSERT(x)
Definition:
Assert.hpp:150
StringUtils.hpp
src
core
util
StringUtils.cpp
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