/* Derived from source code of TrueCrypt 7.1a, which is Copyright (c) 2008-2012 TrueCrypt Developers Association and which is governed by the TrueCrypt License 3.0. Modifications and additions to the original source code (contained in this file) and all other portions of this file are Copyright (c) 2013-2017 IDRIX and are governed by the Apache License 2.0 the full text of which is contained in the file License.txt included in VeraCrypt binary and source code distribution packages. */ #ifndef TC_HEADER_Encryption_Hash #define TC_HEADER_Encryption_Hash #include "Platform/Platform.h" namespace VeraCrypt { class Hash; typedef list < shared_ptr > HashList; class Hash { public: Hash () : Deprecated (false) { } virtual ~Hash () { } static HashList GetAvailableAlgorithms (); virtual void GetDigest (const BufferPtr &buffer) = 0; virtual size_t GetBlockSize () const = 0; virtual size_t GetDigestSize () const = 0; virtual wstring GetName () const = 0; virtual wstring GetAltName () const = 0; virtual shared_ptr GetNew () const = 0; virtual void Init () = 0; bool IsDeprecated () const { return Deprecated; } virtual void ProcessData (const ConstBufferPtr &data) = 0; virtual void ValidateDataParameters (const ConstBufferPtr &data) const; virtual void ValidateDigestParameters (const BufferPtr &buffer) const; protected: SecureBuffer Context; bool Deprecated; private: Hash (const Hash &); Hash &operator= (const Hash &); }; // RIPEMD-160 class Ripemd160 : public Hash { public: Ripemd160 (); virtual ~Ripemd160 () { } virtual void GetDigest (const BufferPtr &buffer); virtual size_t GetBlockSize () const { return 64; } virtual size_t GetDigestSize () const { return 160 / 8; } virtual wstring GetName () const { return L"RIPEMD-160"; } virtual wstring GetAltName () const { return L"RIPEMD160"; } virtual shared_ptr GetNew () const { return shared_ptr (new Ripemd160); } virtual void Init (); virtual void ProcessData (const ConstBufferPtr &data); protected: private: Ripemd160 (const Ripemd160 &); Ripemd160 &operator= (const Ripemd160 &); }; // SHA-256 class Sha256 : public Hash { public: Sha256 (); virtual ~Sha256 () { } virtual void GetDigest (const BufferPtr &buffer); virtual size_t GetBlockSize () const { return 64; } virtual size_t GetDigestSize () const { return 256 / 8; } virtual wstring GetName () const { return L"SHA-256"; } virtual wstring GetAltName () const { return L"SHA256"; } virtual shared_ptr GetNew () const { return shared_ptr (new Sha256); } virtual void Init (); virtual void ProcessData (const ConstBufferPtr &data); protected: private: Sha256 (const Sha256 &); Sha256 &operator= (const Sha256 &); }; // SHA-512 class Sha512 : public Hash { public: Sha512 (); virtual ~Sha512 () { } virtual void GetDigest (const BufferPtr &buffer); virtual size_t GetBlockSize () const { return 128; } virtual size_t GetDigestSize () const { return 512 / 8; } virtual wstring GetName () const { return L"SHA-512"; } virtual wstring GetAltName () const { return L"SHA512"; } virtual shared_ptr GetNew () const { return shared_ptr (new Sha512); } virtual void Init (); virtual void ProcessData (const ConstBufferPtr &data); protected: private: Sha512 (const Sha512 &); Sha512 &operator= (const Sha512 &); }; // Whirlpool class Whirlpool : public Hash { public: Whirlpool (); virtual ~Whirlpool () { } virtual void GetDigest (const BufferPtr &buffer); virtual size_t GetBlockSize () const { return 64; } virtual size_t GetDigestSize () const { return 512 / 8; } virtual wstring GetName () const { return L"Whirlpool"; } virtual wstring GetAltName () const { return L"Whirlpool"; } virtual shared_ptr GetNew () const { return shared_ptr (new Whirlpool); } virtual void Init (); virtual void ProcessData (const ConstBufferPtr &data); protected: private: Whirlpool (const Whirlpool &); Whirlpool &operator= (const Whirlpool &); }; // Streebog class Streebog : public Hash { public: Streebog (); virtual ~Streebog () { } virtual void GetDigest (const BufferPtr &buffer); virtual size_t GetBlockSize () const { return 64; } virtual size_t GetDigestSize () const { return 512 / 8; } virtual wstring GetName () const { return L"Streebog"; } virtual wstring GetAltName () const { return L"Streebog"; } virtual shared_ptr GetNew () const { return shared_ptr (new Streebog); } virtual void Init (); virtual void ProcessData (const ConstBufferPtr &data); protected: private: Streebog (const Streebog &); Streebog &operator= (const Streebog &); }; } #endif // TC_HEADER_Encryption_Hash 8' href='#n38'>38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 
/*
  zip_set_name.c -- rename helper function
  Copyright (C) 1999-2015 Dieter Baron and Thomas Klausner

  This file is part of libzip, a library to manipulate ZIP archives.
  The authors can be contacted at <libzip@nih.at>

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:
  1. Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in
     the documentation and/or other materials provided with the
     distribution.
  3. The names of the authors may not be used to endorse or promote
     products derived from this software without specific prior
     written permission.
 
  THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
  OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/


#include <stdlib.h>
#include <string.h>

#include "zipint.h"


int
_zip_set_name(zip_t *za, zip_uint64_t idx, const char *name, zip_flags_t flags)
{
    zip_entry_t *e;
    zip_string_t *str;
    bool same_as_orig;
    zip_int64_t i;
    const zip_uint8_t *old_name, *new_name;
    zip_string_t *old_str;

    if (idx >= za->nentry) {
	zip_error_set(&za->error, ZIP_ER_INVAL, 0);
	return -1;
    }

    if (ZIP_IS_RDONLY(za)) {
	zip_error_set(&za->error, ZIP_ER_RDONLY, 0);
	return -1;
    }

    if (name && name[0] != '\0') {
        /* TODO: check for string too long */
	if ((str=_zip_string_new((const zip_uint8_t *)name, (zip_uint16_t)strlen(name), flags, &za->error)) == NULL)
	    return -1;
	if ((flags & ZIP_FL_ENCODING_ALL) == ZIP_FL_ENC_GUESS && _zip_guess_encoding(str, ZIP_ENCODING_UNKNOWN) == ZIP_ENCODING_UTF8_GUESSED)
	    str->encoding = ZIP_ENCODING_UTF8_KNOWN;
    }
    else
	str = NULL;

    /* TODO: encoding flags needed for CP437? */
    if ((i=_zip_name_locate(za, name, 0, NULL)) >= 0 && (zip_uint64_t)i != idx) {
	_zip_string_free(str);
	zip_error_set(&za->error, ZIP_ER_EXISTS, 0);
	return -1;
    }

    /* no effective name change */
    if (i>=0 && (zip_uint64_t)i == idx) {
	_zip_string_free(str);
	return 0;
    }

    e = za->entry+idx;

    if (e->orig)
	same_as_orig = _zip_string_equal(e->orig->filename, str);
    else
	same_as_orig = false;

    if (!same_as_orig && e->changes == NULL) {
	if ((e->changes=_zip_dirent_clone(e->orig)) == NULL) {
	    zip_error_set(&za->error, ZIP_ER_MEMORY, 0);
	    _zip_string_free(str);
	    return -1;
	}
    }

    if ((new_name = _zip_string_get(same_as_orig ? e->orig->filename : str, NULL, 0, &za->error)) == NULL) {
	_zip_string_free(str);
	return -1;
    }

    if (e->changes) {
	old_str = e->changes->filename;
    }
    else if (e->orig) {
	old_str = e->orig->filename;
    }
    else {
	old_str = NULL;
    }
    
    if (old_str) {
	if ((old_name = _zip_string_get(old_str, NULL, 0, &za->error)) == NULL) {
	    _zip_string_free(str);
	    return -1;
	}
    }
    else {
	old_name = NULL;
    }

    if (_zip_hash_add(za->names, new_name, idx, 0, &za->error) == false) {
	_zip_string_free(str);
	return -1;
    }
    if (old_name) {
	_zip_hash_delete(za->names, old_name, NULL);
    }

    if (same_as_orig) {
	if (e->changes) {
	    if (e->changes->changed & ZIP_DIRENT_FILENAME) {
		_zip_string_free(e->changes->filename);
		e->changes->changed &= ~ZIP_DIRENT_FILENAME;
		if (e->changes->changed == 0) {
		    _zip_dirent_free(e->changes);
		    e->changes = NULL;
		}
		else {
		    /* TODO: what if not cloned? can that happen? */
		    e->changes->filename = e->orig->filename;
		}
	    }
	}
	_zip_string_free(str);
    }
    else {
	if (e->changes->changed & ZIP_DIRENT_FILENAME) {
	    _zip_string_free(e->changes->filename);
	}
	e->changes->changed |= ZIP_DIRENT_FILENAME;
	e->changes->filename = str;
    }

    return 0;
}