stdlibs/libcrypt/src/libcrypt.cpp
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     1 /*
       
     2 * Copyright (c) 2005-2006 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  Dll entry point functions
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <e32uid.h>
       
    20 
       
    21 #ifndef EKA2 
       
    22 GLDEF_C TInt E32Dll(TDllReason /*aReason*/) 
       
    23 // DLL entry point
       
    24 	{
       
    25 	return(KErrNone);
       
    26 	}
       
    27 #endif 
       
    28 
       
    29 // EXTERNAL FUNCTION PROTOTYPES
       
    30 extern "C" char* _crypt (const char *, const char *);
       
    31 extern "C" void _setkey (const char *);
       
    32 extern "C" void _encrypt (char [], int);
       
    33 
       
    34 extern "C"
       
    35 {
       
    36 
       
    37 // -----------------------------------------------------------------------------
       
    38 // function_name: crypt
       
    39 //
       
    40 // Encodes a constant using the first argument to this function as the key to 
       
    41 // encoding algorithms (DES or MD5)
       
    42 //
       
    43 // Returns: pointer to the buffer containing the encoded string
       
    44 // -----------------------------------------------------------------------------
       
    45 //
       
    46 	EXPORT_C char *crypt(const char *key, const char *salt)
       
    47 	{
       
    48 		return _crypt (key, salt);
       
    49 	}
       
    50 
       
    51 // -----------------------------------------------------------------------------
       
    52 // function_name: setkey
       
    53 //
       
    54 // Sets the key to used within the encryption/decryption algorithms
       
    55 //
       
    56 // Returns: void
       
    57 // -----------------------------------------------------------------------------
       
    58 //
       
    59 	EXPORT_C void setkey(const char *key)
       
    60 	{
       
    61 		_setkey(key);
       
    62 	}
       
    63 
       
    64 // -----------------------------------------------------------------------------
       
    65 // function_name: encrypt
       
    66 //
       
    67 // Encrypts or decrypts the contents of bit vector in place. Type of operation
       
    68 // depends on the edflag argument
       
    69 //
       
    70 // Returns: void
       
    71 // -----------------------------------------------------------------------------
       
    72 //
       
    73 	EXPORT_C void encrypt(char block[], int edflag)
       
    74 	{
       
    75 		// encrypt() does not change the setting of errno if successful.
       
    76 		// However, if errno is non-zero on return, an error has 
       
    77 		// occurred.
       
    78 		_encrypt (block, edflag);
       
    79 	}
       
    80 }