C / C++ / MFC

4-Jun-08 4:40

Can any one of you help me how to implement a MD5 algorithm in C++

Thanks
Nandu

David Crow4-Jun-08 4:50

David Crow

4-Jun-08 4:50

Surely you jest:

I could do this if I only had a search engine

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

Randor 4-Jun-08 4:56

Randor

4-Jun-08 4:56

RFC-1321 describes the MD5 steps and includes the original reference implmentation.

http://www.rfc.net/rfc1321.html[^]

I assume you want to do this for educational purposes. Otherwise it would be better to use Microsoft cryptographic service providers.

Best Wishes,
-David Delaune

Nandu_77b4-Jun-08 7:29

4-Jun-08 7:29

Thanks for your prompt reply.

-Nandu

Hamid_RT4-Jun-08 21:21

Hamid_RT

4-Jun-08 21:21

See Implementing the MD5 Algorithm[^].

Nandu_77b4-Jun-08 22:18

4-Jun-08 22:18

With the above link i am able to ecoding, but can any help me to decoding it.

Thanks
-Nandu

Is there any Win32 API to get users home directory

JudyL_MD5-Jun-08 3:33

JudyL_MD

5-Jun-08 3:33

Nandu_77b wrote:
any help me to decoding it

MD5 is a hash, it only goes from plain-text to hashed data. It does not go the other way. If you want to go back and forth, you need to look at cryptography, not hashing.

Judy

Nandu_77b4-Jun-08 4:23

Re: Is there any Win32 API to get users home directory

4-Jun-08 4:23

HI
Any can help me, to get the users home directory in windows. Is there any win32 API avilable for it?

Home directory means ::C:\Documents and Settings\<userid>

Please help with possible ways to get this thro program.

Thanks,
Nandu

Nandu_77b4-Jun-08 4:25

Re: Is there any Win32 API to get users home directory

4-Jun-08 4:25

Home dir:C:\Documents and Settings\userid

JudyL_MD4-Jun-08 4:37

JudyL_MD

4-Jun-08 4:37

SHGetSpecialFolderPath[^]

Re: Is there any Win32 API to get users home directory

krmed4-Jun-08 6:55

krmed

4-Jun-08 6:55

You could also use GetEnvironmentVariable:

TCHAR tcDirName[_MAX_PATH];
GetEnvironmentVariable(_T("userprofile"), tcDirName, _MAX_PATH);

This environment variable is set when the user logs on.

Note that it is not always on the same drive as the system (C Smile | :)

.

Hope that helps.

Karl - WK5M
PP-ASEL-IA (N43CS)
PGP Key: 0xDB02E193
PGP Key Fingerprint: 8F06 5A2E 2735 892B 821C 871A 0411 94EA DB02 E193

Re: Is there any Win32 API to get users home directory

Nandu_77b4-Jun-08 7:28

Re: Is there any Win32 API to get users home directory

4-Jun-08 7:28

Thanks for your reply, is there any specific win32 API who will do this job. As i need to use this in win32 API programming, not in MFC or higher framwork.

-Nandu

krmed4-Jun-08 8:02

krmed

4-Jun-08 8:02

That is Win32 API call.

Karl - WK5M
PP-ASEL-IA (N43CS)
PGP Key: 0xDB02E193
PGP Key Fingerprint: 8F06 5A2E 2735 892B 821C 871A 0411 94EA DB02 E193

Re: Is there any Win32 API to get users home directory [modified]

Nibu babu thomas4-Jun-08 17:44

Nibu babu thomas

4-Jun-08 17:44

Nandu_77b wrote:
is there any specific win32 API who will do this job

Yes, use

GetUserProfileDirectory - retrieves the path to the root directory of the specified user's profile.

For e.g. C:\Documents and Settings\Nibu

A function which uses ths API to return current process user home dir...

#include "Userenv.h"
#pragma comment(lib, "userenv.lib")
CString GetUserHomeDir()
{
   TCHAR szHomeDirBuf[MAX_PATH] = { 0 };
   
   HANDLE hToken = 0;
   VERIFY( OpenProcessToken( GetCurrentProcess(), TOKEN_QUERY, &hToken ));
   
   DWORD BufSize = MAX_PATH;
   VERIFY( GetUserProfileDirectory( hToken, szHomeDirBuf, &BufSize ));
   
   CloseHandle( hToken );
   return CString( szHomeDirBuf );
}

Then there are other functions too which might interest you, like...

GetAllUsersProfileDirectory
GetDefaultUserProfileDirectory
GetProfilesDirectory

Look up these in MSDN for more information.

Nibu thomas
Microsoft MVP for VC++

Code must be written to be read, not by the compiler, but by another human being.

Programming Blog: http://nibuthomas.wordpress.com

modified on Wednesday, June 4, 2008 11:55 PM

Re: Is there any Win32 API to get users home directory [modified]

Member 85340355-Jan-17 6:07

Member 8534035

5-Jan-17 6:07

Is the given code correct?

I am wondering about the return instruction, in which a CString object is created:

return CString( szHomeDirBuf );

In my opinion this object will be already destroyed while the function returns.
When accessing from caller, the object is already invalid.

CString res = GetUserHomeDir();

Am I wrong?

How To Get Default Getway IP

Dabara4-Jun-08 4:08

Dabara

4-Jun-08 4:08

Hi

How to get User's gateway IP using VC++ ?.

Is there any VC++ API to find the IE Version ?.

Thanks in advance.

Prabhat Singh

Re: How To Get Default Getway IP

David Crow4-Jun-08 4:47

David Crow

4-Jun-08 4:47

Use GetAdaptersInfo().

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

COM Basics

Aseem Sharma4-Jun-08 3:49

Aseem Sharma

4-Jun-08 3:49

Can somebody tell me the best book to start with COM&ATL Stuff?

led mike4-Jun-08 4:21

led mike

4-Jun-08 4:21

Aseem Sharma wrote:
tell me the best book

Well I think books can be somewhat personal but for me it was this one.[^]

led mike

sudhir_Kumar4-Jun-08 5:05

sudhir_Kumar

4-Jun-08 5:05

Inside COM - Dale Rogerson

Sudhir Kumar

Aseem Sharma4-Jun-08 14:21

Aseem Sharma

4-Jun-08 14:21

Thanks friends.