stringsplit for C++

[Richard Robertson]

Have you looked at his code? He's getting the value of AutoIt plugin function parameters and each one is a string that is a character long. He needs to take these and put them into a string.

On second thought, forget a conversion. Why don't you just accept all four characters as a string parameter? That makes a lot more sense.

[cppman]

Have you looked at his code? He's getting the value of AutoIt plugin function parameters and each one is a string that is a character long. He needs to take these and put them into a string.

On second thought, forget a conversion. Why don't you just accept all four characters as a string parameter? That makes a lot more sense.

I'm still kind of confused on what he is trying to do. He is trying to convert an array of 1 character + 1 null character strings, into 1 string?

char *IV[4] = {"a", "b", "c", "d"};
char *result = new char[5];
memset(result, 0, sizeof(char) * 5);

for (int i = 0; i < 4; i++) result[i] = *IV[i];

// and when you're done..
delete[] result;

result is now the string.

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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] = {0}; //result of encryption

    // allocate our return string...
    char *au3ready = new char[packetlen + 1];
    memset(au3ready, 0, sizeof(char) * (packetlen + 1));

    strcpy(buf2send,packet);
    mc_encrypt(IV, buf2send, result, packetlen);
    strcpy(au3ready, result);

    /*
    for (int i=0;i<packetlen;i++){
        au3ready[i] = result[i];
    }
    */

    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready);
    *p_AU3_Result       = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;  
}

?

Edited July 19, 2008 by cppman

[mmavipc]

I'm still kind of confused on what he is trying to do. He is trying to convert an array of 1 character + 1 null character strings, into 1 string?

char *IV[4] = {"a", "b", "c", "d"};
char *result = new char[5];
memset(result, 0, sizeof(char) * 5);

for (int i = 0; i < 4; i++) result[i] = *IV[i];

// and when you're done..
delete[] result;

result is now the string.

expandcollapse popup

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] = {0}; //result of encryption

    // allocate our return string...
    char *au3ready = new char[packetlen + 1];
    memset(au3ready, 0, sizeof(char) * (packetlen + 1));

    strcpy(buf2send,packet);
    mc_encrypt(IV, buf2send, result, packetlen);
    strcpy(au3ready, result);

    /*
    for (int i=0;i<packetlen;i++){
        au3ready[i] = result[i];
    }
    */

    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready);
    *p_AU3_Result       = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;  
}

?

au3ready cant be an array

[mmavipc]

au3ready cant be an array

I;m trying to turn result into 1 string

[cppman]

I;m trying to turn result into 1 string

Strings are arrays. A string is simply an array of characters ending with a '\0' (NULL character).

So au3ready is a single string.

Edited July 20, 2008 by cppman

[Richard Robertson]

Are you saying you don't know enough about C++ to know a character array? You shouldn't be writing plugins. ^^;

I suggested this though.

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]);

Instead of that, just send one parameter that is a string, four characters long. Then you can read one parameter into IV.

[mmavipc]

current code:

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_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[i] = result[i];
    }
    pMyResult = AU3_AllocVar ();
    AU3_SetString(pMyResult,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

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

Execution terminated

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

Edit: tried changing au3ready to a pointer and it worked.

Edited July 20, 2008 by mmavipc

[mmavipc]

Is there anyway to turn a *(pointer) into a non-*(non-pointer)?

[Valik]

Yes. By reading a text-book (preferably on C\C++).

[mmavipc]

Yes. By reading a text-book (preferably on C\C++).

muttley

[cppman]

You dereference a pointer like this:

int *ptr ...;
int val = *ptr;

[Richard Robertson]

Technically you could also use ptr[0] to get the value. I'm sure the subscript operator would just add confusion to normal code though.

[Valik]

You dereference a pointer like this:

int *ptr ...;
 int val = *ptr;

Why do you continue to help somebody who has virtually no knowledge and based on their reaction doesn't seem very willing put forth the effort necessary to get some knowledge on their own? Sometimes, despite the fact that we can help, we just have to say, "No, you need to learn that on your own." Helping people every time and never forcing them to help themselves, that's not really a good thing.

[cppman]

Why do you continue to help somebody who has virtually no knowledge and based on their reaction doesn't seem very willing put forth the effort necessary to get some knowledge on their own? Sometimes, despite the fact that we can help, we just have to say, "No, you need to learn that on your own." Helping people every time and never forcing them to help themselves, that's not really a good thing.

It isn't exactly easy to figure out what to search for when you are just starting out. It really helps to work off of examples. Thus, I gave him a "dead" example, and a term, in italics, to search for.

[Valik]

It isn't exactly easy to figure out what to search for when you are just starting out. It really helps to work off of examples. Thus, I gave him a "dead" example, and a term, in italics, to search for.

It's pretty easy to know what to search for when starting out. They're called books. There's a sticky in this forum to them. The OP isn't at the point where they need to search for anything, they are at the point where they need basic knowledge covered by any text book.

[mmavipc]

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_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[i] = result[i];
    }
    s2au3 = AU3_AllocVar ();
    AU3_SetString(s2au3,au3ready);
    *p_AU3_Result       = s2au3;
    *n_AU3_ErrorCode    = 0;
    *n_AU3_ExtCode      = 0;
    
    return AU3_PLUGIN_OK;   
}

Can anyone tell me why this crashes autoit?

edit: dummies 4TW except that it crashes autoit......

Edit: just noticed soo many replies happened while I was getting a book and reading muttley

Edited July 22, 2008 by mmavipc

[Richard Robertson]

What was the error returned?

Something Valik suggested to me when I was writing a plugin before was to run the code in it's own program for testing. That way you can use all the debugging tools.

[mmavipc]

What was the error returned?

Something Valik suggested to me when I was writing a plugin before was to run the code in it's own program for testing. That way you can use all the debugging tools.

it does that windows crash thingy and autoit.exe exits with this errorcode

!>12:17:40 AutoIT3.exe ended.rc:-1073741819

the testing proggy i used was:

$hplugin = PluginOpen("dll.dll")
ConsoleWrite("lolz" & @lf)
ConsoleWrite(enc(0x00,0x00,0x00,0x00,"lolz",4) & @lf)
PluginClose($hplugin)

How would I run the plugin in it's own program?

[Richard Robertson]

You copy the code from one file, to another. Write a small user interface so you can test it. Set it to debug mode for whatever IDE you use.

[Valik]

The OP knows less than the basics here. Writing re-usable code is well outside the capabilities demonstrated thus far...