stringsplit for C++

[mmavipc]

Hello. I'm trying to make a au3 plugin but my prob is that i need to load a string eg "lolzipwnzcuziizdumbb0z" into a array.

if this were autoit I would just stringsplit(string,""). Can anyone tell me how to do this in C++ please. Thank you

[-Ultima-]

@Alienware: Look at the subforum you're posting in, and ask again...? It's not really relevant.

@mmavipc: Depends on what kind of strings you're using. If you're using cstrings, then you'll find that they already are arrays of characters, and you can do string to access each character already (until you hit null termination, '\0'). If you're using C++ std::string, you can always get the cstring out of the object using string.c_str(), and then access the characters as described previously.

Edit: As Richard mentioned, though, std::string does overload the [] operator, though. Silly me -- I never use it, so it completely slipped my mind. Bad excuse, but oh well muttley

Edited July 18, 2008 by -Ultima-

[mmavipc]

@Alienware: Look at the subforum you're posting in, and ask again...?

@mmavipc: Depends on what kind of strings you're using. If you're using cstrings, then you'll find that they already are arrays of characters, and you can do string to access each character already (until you hit the null termination, '\0'). If you're using C++ std::string, you can always get the cstring out of the object using string.c_str(), and then access the characters as described previously.

heres my current code

char IV[4];
AU3_PLUGIN_DEFINE(enc)
{
    AU3_PLUGIN_VAR  *pMyResult;
    char *packet 
    int *packetlen
    IV[0] = AU3_GetString(&p_AU3_Params[0]);
    IV[1] = AU3_GetString(&p_AU3_Params[1]);
    IV[2] = AU3_GetString(&p_AU3_Params[2]);
    IV[3] = AU3_GetString(&p_AU3_Params[3]);
    packet = AU3_GetString(&p_AU3_Params[4]);
    packetlen = AU3_GetString(&p_AU3_Params[5]);
    char buf2send[10240] //10k ok buf space becuase packets can get bigger than 9k

i need packet to go into buf2send.

[Richard Robertson]

Use strcpy.

Edited July 18, 2008 by Richard Robertson

[LarryDalooza]

in C it is "strtok"... I think...

Lar.

[mmavipc]

Use strcpy.

Thank you

[mmavipc]

heres my new code:

AU3_PLUGIN_DEFINE(enc)
{
    AU3_PLUGIN_VAR  *s2au3;
    char *packet;
    int *packetlen;
    IV[0] = AU3_GetString(&p_AU3_Params[0]);
    IV[1] = AU3_GetString(&p_AU3_Params[1]);
    IV[2] = AU3_GetString(&p_AU3_Params[2]);
    IV[3] = AU3_GetString(&p_AU3_Params[3]);
    packet = AU3_GetString(&p_AU3_Params[4]);
    packetlen = AU3_GetString(&p_AU3_Params[5]);
    char buf2send[10240]; //10k ok buf space becuase packets can get bigger than 9k
    char result[10240]; //result of encryption
    char au3ready;
    strcpy(buf2send,packet);
    mc_encrypt(IV, buf2send, result, packetlen);
    for (int i=0;i<packetlength;i++){
        au3ready = au3ready + result[i];
    }
    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready);
    *p_AU3_Result       = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;   
}

Now I'm getting a bunch of invalid conversion from char to char

?????(I am a noob at C++)

[Richard Robertson]

Since we don't know anything about mc_encrypt, there may be errors on that call that we can't help you with.

Also, where is IV declared?

[mmavipc]

Since we don't know anything about mc_encrypt, there may be errors on that call that we can't help you with.

Also, where is IV declared?

here lemmie give yu mroe of the code

char encrypted_buffer[10000]; //big chunk of space :D some packets hit more than 9k you know.
char IV[4];
AU3_PLUGIN_DEFINE(enc)
{
    AU3_PLUGIN_VAR  *s2au3;
    char *packet;
    int *packetlen;
    IV[0] = AU3_GetString(&p_AU3_Params[0]);
    IV[1] = AU3_GetString(&p_AU3_Params[1]);
    IV[2] = AU3_GetString(&p_AU3_Params[2]);
    IV[3] = AU3_GetString(&p_AU3_Params[3]);
    packet = AU3_GetString(&p_AU3_Params[4]);
    packetlen = AU3_GetString(&p_AU3_Params[5]);
    InitEncryption(51);
    char buf2send[10240]; //10k ok buf space becuase packets can get bigger than 9k
    char result[10240]; //result of encryption
    char au3ready;
    strcpy(buf2send,packet);
    mc_encrypt(IV, buf2send, result, packetlen);
    for (int i=0;i<packetlength;i++){
        au3ready = au3ready + result[i];
    }
    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready);
    *p_AU3_Result       = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;   
}

and

int InitEncryption(int value){
    HINSTANCE hGetProcIDDLL = LoadLibraryA("MapleCrypto");
    mc_initalize = pIC_InitDeInit(GetProcAddress(HMODULE (hGetProcIDDLL), "Initialize"));
    mc_finalize = pIC_InitDeInit(GetProcAddress(HMODULE (hGetProcIDDLL), "Finalize"));
    mc_encrypt = pIC_EncDecrypt(GetProcAddress(HMODULE (hGetProcIDDLL), "Encrypt"));
    mc_decrypt = pIC_EncDecrypt(GetProcAddress(HMODULE (hGetProcIDDLL), "Decrypt"));
    mc_encryptWithHeaderToClient = pIC_HeaderEncrypt(GetProcAddress(HMODULE (hGetProcIDDLL), "EncryptWithHeaderToClient"));
    mc_encryptWithHeaderToServer = pIC_HeaderEncrypt(GetProcAddress(HMODULE (hGetProcIDDLL), "EncryptWithHeaderToServer"));
    mc_generateIV = pIC_GenerateIV(GetProcAddress(HMODULE (hGetProcIDDLL), "GenerateIV"));
    return mc_initalize(value);
}

[Richard Robertson]

Here's a huge problem. You are trying to set a char[] into a char.

char IV[4]; means that an array of 4 chars will be declared. Not 4 strings. Use char *IV[4]; I believe. Try that and see what happens next.

[mmavipc]

new code:

char encrypted_buffer[10000]; //big chunk of space :D some packets hit more than 9k you know.
char *IV[4];
AU3_PLUGIN_DEFINE(enc)
{
    AU3_PLUGIN_VAR  *s2au3;
    char *packet;
    int packetlen;
    IV[0] = AU3_GetString(&p_AU3_Params[0]);
    IV[1] = AU3_GetString(&p_AU3_Params[1]);
    IV[2] = AU3_GetString(&p_AU3_Params[2]);
    IV[3] = AU3_GetString(&p_AU3_Params[3]);
    packet = AU3_GetString(&p_AU3_Params[4]);
    packetlen = AU3_GetInt32(&p_AU3_Params[5]);
    InitEncryption(51);
    char buf2send[10240]; //10k ok buf space becuase packets can get bigger than 9k
    char result[10240]; //result of encryption
    char au3ready;
    strcpy(buf2send,packet);
    mc_encrypt(IV, buf2send, result, packetlen);
    for (int i=0;i<packetlen;i++){
        au3ready = au3ready + result[i];
    }
    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready);
    *p_AU3_Result       = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;   
}

compile log:

Compiler: Default compiler
Building Makefile: "D:\Documents and Settings\Maverick\Desktop\thumb\AutoitMSEmu\dllpaser\Makefile.win"
Executing  make...
make.exe -f "D:\Documents and Settings\Maverick\Desktop\thumb\AutoitMSEmu\dllpaser\Makefile.win" all
g++.exe -c main.cpp -o main.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include"  -I"C:/Dev-Cpp/include/c++/3.4.2/backward"  -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32"  -I"C:/Dev-Cpp/include/c++/3.4.2"  -I"C:/Dev-Cpp/include"   

main.cpp: In function `int enc(int, const AU3_PLUGIN_VAR*, AU3_PLUGIN_VAR**, int*, int*)':

main.cpp:78: error: cannot convert `char**' to `char*' in argument passing
main.cpp:79: error: ISO C++ forbids comparison between pointer and integer
main.cpp:83: error: invalid conversion from `char' to `char*'
main.cpp:83: error:   initializing argument 2 of `void AU3_SetString(AU3_PLUGIN_VAR*, char*)'

make.exe: *** [main.o] Error 1

Execution terminated

Line 72: packetlen = AU3_GetInt32(&p_AU3_Params[5]);

line 78: mc_encrypt(IV, buf2send, result, packetlen);

line 79: for (int i=0;i<packetlen;i++){

line: 83: AU3_SetString(s2au3,au3ready);

edit: fixed line 72

Edited July 19, 2008 by mmavipc

[cppman]

I added some comments in here, so check them out.

//vvv - this should be allocated dynamically if it is a "packet".
char encrypted_buffer[10000]; //big chunk of space :D some packets hit more than 9k you know.
char *IV[4];
AU3_PLUGIN_DEFINE(enc)
{
    AU3_PLUGIN_VAR  *s2au3;
    char *packet;
    int packetlen; // it SHOULDN'T be an int*
    IV[0] = AU3_GetString(&p_AU3_Params[0]);
    IV[1] = AU3_GetString(&p_AU3_Params[1]);
    IV[2] = AU3_GetString(&p_AU3_Params[2]);
    IV[3] = AU3_GetString(&p_AU3_Params[3]);
    packet = AU3_GetString(&p_AU3_Params[4]);
    packetlen = AU3_GetInt32(&p_AU3_Params[5]);
    InitEncryption(51);
    char buf2send[10240]; //10k ok buf space becuase packets can get bigger than 9k
    char result[10240]; //result of encryption
    char au3ready;
    strcpy(buf2send,packet);
    // What string in IV are you trying to send? [0],[1],[2],[N]?
    mc_encrypt(IV/* <----- */, buf2send, result, packetlen);
    for (int i=0;i<packetlen;i++){
        au3ready = au3ready + result[i]; // ARE YOU TRYING TO APPEND result[i] to au3ready? (it isn't a string)
    }
    // not sure how autoit handles allocated memory... so delete at your own risk
    char *au3ready_str = new char[2];
    memset(au3ready_str, 0, sizeof(CHAR) * 2);
    au3ready_str[0] = au3ready;
    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready_str);
       *p_AU3_Result        = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;
}

Edited July 19, 2008 by cppman

[mmavipc]

I added some comments in here, so check them out.

//vvv - this should be allocated dynamically if it is a "packet".
char encrypted_buffer[10000]; //big chunk of space :D some packets hit more than 9k you know.
char *IV[4];
AU3_PLUGIN_DEFINE(enc)
{
    AU3_PLUGIN_VAR  *s2au3;
    char *packet;
    int packetlen; // it SHOULDN'T be an int*
    IV[0] = AU3_GetString(&p_AU3_Params[0]);
    IV[1] = AU3_GetString(&p_AU3_Params[1]);
    IV[2] = AU3_GetString(&p_AU3_Params[2]);
    IV[3] = AU3_GetString(&p_AU3_Params[3]);
    packet = AU3_GetString(&p_AU3_Params[4]);
    packetlen = AU3_GetInt32(&p_AU3_Params[5]);
    InitEncryption(51);
    char buf2send[10240]; //10k ok buf space becuase packets can get bigger than 9k
    char result[10240]; //result of encryption
    char au3ready;
    strcpy(buf2send,packet);
    // What string in IV are you trying to send? [0],[1],[2],[N]?
    mc_encrypt(IV/* <----- */, buf2send, result, packetlen);
    for (int i=0;i<packetlen;i++){
        au3ready = au3ready + result[i]; // ARE YOU TRYING TO APPEND result[i] to au3ready? (it isn't a string)
    }
    // not sure how autoit handles allocated memory... so delete at your own risk
    char *au3ready_str = new char[2];
    memset(au3ready_str, 0, sizeof(CHAR) * 2);
    au3ready_str[0] = au3ready;
    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready_str);
       *p_AU3_Result        = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;
}

IV is sent as an array and i'm trying to turn result from an array into a string(each array in result has 1 character)

[Richard Robertson]

You'll have to do some weird middle work because when you get the string from a mini variant, you get a char*. What you are actually getting is two characters long. The character you expect and a null.

You'll have to write a little conversion code.

[mmavipc]

You'll have to do some weird middle work because when you get the string from a mini variant, you get a char*. What you are actually getting is two characters long. The character you expect and a null.

You'll have to write a little conversion code.

how? and add me on msn my msn in mmavipc@yahoo.com

[cppman]

how? and add me on msn my msn in mmavipc@yahoo.com

char * chr2str(char c) { char *ret = new char[2]; memset(ret, 0, sizeof(char) * 2); ret[0] = c; return ret; }

Don't forget to delete it, but that returns a string representation of a character.

char c = 'a';
char *mystring = chr2str(c);

// when you're done with it...
delete[] mystring;

Edited July 19, 2008 by cppman

[mmavipc]

char * chr2str(char c) { char *ret = new char[2]; memset(ret, 0, sizeof(char) * 2); ret[0] = c; return ret; }

Don't forget to delete it, but that returns a string representation of a character.

char c = 'a';
char *mystring = chr2str(c);

// when you're done with it...
delete[] mystring;

where do i put this?

[Richard Robertson]

Chris, you went in the wrong direction. He needs to convert his single character strings (character and a null) to a character. That's what his code was trying to do.

[mmavipc]

Chris, you went in the wrong direction. He needs to convert his single character strings (character and a null) to a character. That's what his code was trying to do.

Can you whip up an example code?

[cppman]

Chris, you went in the wrong direction. He needs to convert his single character strings (character and a null) to a character. That's what his code was trying to do.

In that case, there's nothing to convert.

Can you whip up an example code?

char *test[] = {"a", "b", "c", "d"};

int n = 0; //this is the index of the string array
char c = *test[n]; //this gets the character from the specified string

Edited July 19, 2008 by cppman