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pkedpker
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 Posted: Wed Aug 20, 2008 1:46 am Post subject: How do I form structure dymaically? |
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I got this atm.. but i get a ton of compiler errors
| Code: |
struct Packet{
char d6; //D6
short Size; //XX XX
char Keys[7];
char ServerKeys[1];
char data[2000];
};
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| Code: |
Packet packet;
packet.d6 = 0xD6;
packet.Size = 0x1e;
packet.Keys = "\x0b\x00\x00\x00\x00\x00\x07\x00";
packet.ServerKeys = serverKeys;
packet.data = "\x00\x00\x0b\x00\x07";
strncat(packet.data, DBId, 4);
strncat(packet.data, "\x00\x63\x00\x00\x7d\x00\x00\x6b", 8);
SendPacket(&packet);
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atm im doing the only way i know how.. and its not looking pretty
| Code: |
char* packet = new char[0x1e];
packet[0] = 0xd6;
packet[1] = 0x1e;
packet[2] = 0x00;
packet[3] = 0x0b;
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Well help me out u smart peepz lol.
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DeletedUser14087
I post too much
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| Posted: Wed Aug 20, 2008 2:36 am Post subject: |
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You forgot to set access point to your structure:
try now
| Code: | struct _Packet{
char d6; //D6
short Size; //XX XX
char Keys[7];
char ServerKeys[1];
char data[2000];
}Packet; |
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pkedpker
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| Posted: Wed Aug 20, 2008 2:44 am Post subject: |
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Na its not that lol I remember that what u just wrote from a typedef tutorial but naw im talking about
errors like char[9] is not char[7] etc.. stupid errors
seems i can't even use strncat on it..
in the end I want to take the packet structure and pass it as a address hopefully it should look like a stream of a real packet..
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Jani
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| Posted: Wed Aug 20, 2008 3:29 am Post subject: |
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| pkedpker wrote: | | errors like char[9] is not char[7] etc.. stupid errors |
Dynamically also allocate the length too? I mean | Code: | struct Packet{
..
char *Keys;
..
}
unsigned char src[] = "\x00\x01";
Packet p;
p.Keys = new char [ sizeof(src) ];
::memcpy( p.Keys, Src, sizeof( src ) );
delete [] p.Keys;
or something |
| pkedpker wrote: | | seems i can't even use strncat on it.. |
::memcpy / ::memcpy_s.
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pkedpker
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| Posted: Thu Aug 21, 2008 12:37 am Post subject: |
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thanks memcpy_s doesn't exist
but memcpy is powerful o_O man thats all i need really memcpy..
i could use any offest I want..
packet[4] = blahblah
memcpy(packet+5, whatIwantToCopy, sizeOf(WhatIwantToCopy;
all good.. thanks
rep++
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hcavolsdsadgadsg
I'm a spammer
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| Posted: Thu Aug 21, 2008 1:27 am Post subject: |
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| pkedpker wrote: | thanks memcpy_s doesn't exist
but memcpy is powerful o_O man thats all i need really memcpy..
i could use any offest I want..
packet[4] = blahblah
memcpy(packet+5, whatIwantToCopy, sizeOf(WhatIwantToCopy;
all good.. thanks
rep++ |
memcpy_s does indeed exist.
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nog_lorp
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| Posted: Thu Aug 21, 2008 1:58 am Post subject: |
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So the question was how do I dynamically allocate a string, not actually related to structs.
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atom0s
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| Posted: Thu Aug 21, 2008 3:09 pm Post subject: |
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| Code: | | TCHAR* tszString = new TCHAR[ SizeNeeded ]; |
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HalfPrime
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| Posted: Thu Aug 21, 2008 3:18 pm Post subject: |
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If you new something, will it get deleted after the function ends? I know you can use mallocs created from a function call, but what about news?
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pkedpker
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| Posted: Thu Aug 21, 2008 3:42 pm Post subject: |
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I t hink any pointer u create from a packet has to be added into a pointerBuffer and clear when it reaches 100 pointers or so.. thats how i got it right now... so i dont know!
| nog_lorp wrote: | | So the question was how do I dynamically allocate a string, not actually related to structs. |
dud this has everything related to structs and allocation..
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atom0s
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| Posted: Thu Aug 21, 2008 3:44 pm Post subject: |
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| HalfPrime wrote: | | If you new something, will it get deleted after the function ends? I know you can use mallocs created from a function call, but what about news? |
No. The memory that holds the buffer is still valid after the function ends. You need to use delete to remove it after you are done with it.
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