Is it work correctly?
it decrypts the string but also adds unuseful thingd
/
/
i have got rhis bytearray(b'com/maxm\x00\x00\x00\x00\x00\x00\x00\x00')
like all the zeros and the bytearray
/
Is it work correctly?
bytearray(b'com/maxm\x00\x00\x00\x00\x00\x00\x00\x00')
this is the output but the only useful thing is com/maxm
Daulet
/
Ok i understand
the output is this bytearray(b'\x14X\xdf\x0fE\x08\x9bGf}\x97\x1b\x8c\x1d@7')
/
it doesnt show anything
/
but not completely full
Daulet
import sys
xor_keys = [ 5, 0x12, 0xFA, 0x34, 0xE1, 0x7C, 0x38, 0x5A, 0x61,
0x30, 0xA, 0x5A, 0xD1, 0x10, 0xCA, 0x72, 0x15, 0x51,
0xA5, 0x64, 1, 0x5F, 0x31, 0x41, 0x7A, 0x25, 0x2B, 0x8A, 0x3F,
0x1F, 0x9A ];
def decrypt(string_length, bytes):
str_length = string_length & ~(string_length >> 31)
counter = 0
while True:
key = xor_keys[counter]
if counter > 31:
counter = 0
bytes[counter] ^= key
counter += 1
str_length -= 1
if str_length == 0:
break
index = len(bytes) // 2
return bytes[:index].decode()
n = 0x37401D8C1B977D66
length = 8
print(decrypt(length, bytearray(n.to_bytes(16, sys.byteorder))))
Daulet
index = len(bytes) // 2
return bytes[:index].decode()
this new code
/
index = len(bytes) // 2
return bytes[:index].decode()
this new code
now i try it on the complete string
/
Ok
return bytes[:index].decode()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xdf in position 2: invalid continuation byte
Daulet
/
ok
/
Is xor keys right for complete string?
void __fastcall decrypt_string_f2(int string_length, char *string_ptr)
{
int str_length; // r0
unsigned int counter; // r2
char byte; // r3
if ( string_length >= 1 )
{
str_length = string_length & ~(string_length >> 31);
counter = 0;
do
{
byte = xor_keys[counter++];
--str_length;
if ( counter > 31 )
counter = 0;
*string_ptr++ ^= byte;
}
while ( str_length );
}
}
/
Show me original of string plz
the original string should be com/maxmpz/audioplayer/Sync or something like that
/
its all the day
/
that i make this thing
Michel
Hi there, I'm using meson + ninja in order to build my code and I'm getting a very lengthy error in this instruction:
c++ -Itest/vector.p -Itest -I../test -I../include -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -O0 -g -MD -MQ test/vector.p/vector.cpp.o -MF test/vector.p/vector.cpp.o.d -o test/vector.p/vector.cpp.o -c ../test/vector.cpp
Could someone explain to me what do these options mean?
Michel
What I get is A LOT of errors like this
In file included from ../include/cxxopts.hpp:43,
from ../test/vector.cpp:4:
test/vector:1:1: error: stray ‘\177’ in program
1 | <U+007F>ELF<U+0002><U+0001><U+0001>...
| ^~~~~~~~
Michel
Here is my code if someone is interested in checking this out. The error occurs when I recompile after changing some of the .cpp's that use cxxopts.hpp
Michel
What I get is A LOT of errors like this
In file included from ../include/cxxopts.hpp:43,
from ../test/vector.cpp:4:
test/vector:1:1: error: stray ‘\177’ in program
1 | <U+007F>ELF<U+0002><U+0001><U+0001>...
| ^~~~~~~~
The error comes from naming one of my binaries vector, the when I rebuild it gets confused with std::vector in some places that use #inlcude <vector>.
\Device\NUL
Do float types are portable , unlike integer types which has cstdint due data model. Or is there any typedef or header that similar to stdint ?
Sidharth Singh
/n
Kriss
So my throw code is like
throw "No paper"
And my catch code is
catch(const char *txt ){}
My question is why we are using a pointer to define the catch type and why char, can't we use something like
catch(string txt){}
`` 🇫🇷 ;; ce serai ta blonde ce soir, si c'est ce que tu aimes
3xploit
Hello can i ask some question related mostly to compiler ? I am using visual studio for a project on C language but it doesnt resolve functions like realloc and memcpy.
The project is taken from github and i would like to do some edits , it seems like the configuration is wrong because if i create new project these functions work fine.
Liam
Hello can i ask some question related mostly to compiler ? I am using visual studio for a project on C language but it doesnt resolve functions like realloc and memcpy.
The project is taken from github and i would like to do some edits , it seems like the configuration is wrong because if i create new project these functions work fine.
what do you mean by saying 'doesn't resolve'?
raw error messages might help.
3xploit
what do you mean by saying 'doesn't resolve'?
raw error messages might help.
Yeah sure , Error LNK2001 unresolved external symbol __imp__wcsnicmp
Same happens with all C functions.
Liam
Yeah sure , Error LNK2001 unresolved external symbol __imp__wcsnicmp
Same happens with all C functions.
VS version? after VS 2015?
Liam
yes 2022
see this: https://docs.microsoft.com/en-us/cpp/porting/visual-cpp-change-history-2003-2015?redirectedfrom=MSDN&view=msvc-170#BK_CRT
> The definitions of all of the printf and scanf functions have been moved inline into <stdio.h>, <conio.h>, and other CRT headers. This breaking change leads to a linker error (LNK2019, unresolved external symbol) for any programs that declared these functions locally without including the appropriate CRT headers. If possible, you should update the code to include the CRT headers (that is, add #include <stdio.h>) and the inline functions, but if you do not want to modify your code to include these header files, an alternative solution is to add an additional library to your linker input, legacy_stdio_definitions.lib.
and see this: https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strnicmp-wcsnicmp?view=msvc-170
> The Microsoft-specific function names strnicmp and wcsnicmp are deprecated aliases for the _strnicmp and _wcsnicmp functions.
Sadat
I was doing my project and i across the above code. But i am stuck, because after i extract data and wish to put it into database using the variable name, but unable to do so
May i know is it possible to insert into the database using variable name ?
eg.
int i = 100;
db->query("INSERT INTO a VALUES(5, i);");
Sadat
any help please
3xploit
see this: https://docs.microsoft.com/en-us/cpp/porting/visual-cpp-change-history-2003-2015?redirectedfrom=MSDN&view=msvc-170#BK_CRT
> The definitions of all of the printf and scanf functions have been moved inline into <stdio.h>, <conio.h>, and other CRT headers. This breaking change leads to a linker error (LNK2019, unresolved external symbol) for any programs that declared these functions locally without including the appropriate CRT headers. If possible, you should update the code to include the CRT headers (that is, add #include <stdio.h>) and the inline functions, but if you do not want to modify your code to include these header files, an alternative solution is to add an additional library to your linker input, legacy_stdio_definitions.lib.
and see this: https://docs.microsoft.com/en-us/cpp/c-runtime-library/reference/strnicmp-wcsnicmp?view=msvc-170
> The Microsoft-specific function names strnicmp and wcsnicmp are deprecated aliases for the _strnicmp and _wcsnicmp functions.
didnt work , i tried to check configuration of new projects which the functions work to see differences but cant catch anything
3xploit
@frame0x01 thanks for you help , i just copied all project files to another project and it worked.
Anonymous
So my throw code is like
throw "No paper"
And my catch code is
catch(const char *txt ){}
My question is why we are using a pointer to define the catch type and why char, can't we use something like
catch(string txt){}
Exceptions don't do type conversions. There are very limited type conversions supported for exceptions and user defined conversions are not one of them.
And think about it. When an exception is thrown, the C++ runtime stores the exception object in a place where it can be accessed by all threads. If all type conversions were allowed, then you will be working on a temporary and not the actual exception object. And if you rethrow that object, it will be meaningless because all the information you put into it while handling it will be lost as it is only the original exception object that will be rethrown.
Anonymous
1. Read C book.
2. typedef char *string;
3. PROFIT!!!
That is not even a relevant answer. He is talking about exceptions and you advise him to read about C
`` 🇫🇷 ;; ce serai ta blonde ce soir, si c'est ce que tu aimes
jaebie
Can I ask for some help in c++?
Aquatica
jaebie
Yes
i need a progran wherein it has function that will calculate the distance between two points
jaebie
kindly help me
Dima
try to write something at first
klimi
kindly help me
sure, and what do you know? how to write function? how to calculate distance between two points?
jaebie
How to write function