recv() function

[Kingrap]

hi friends ..
I receive a packet with the function recv ();

I receive with:

recvbuf char [255];
recv (Connect, recvbuf, 255.0);

ok, no problem ..

I Know That the receive function returns -1 (unsuccessful) or n (successful) ..
n is the number of bytes received.

how i read n?

i have the packet wrong because i receive packet + ~ ~ ~ ~
~ That character replace characters in more ..

always change the packet size

attention: i receive a packet encrypted and packet decrypted size don't is packet encrypted size..

[.Infinite]

recvbuf char [255];

huh?

char recvbuf[255];
int n = 1;
while(n > 0)
{
	n = recv(Socket, recvbuf, sizeof(recvbuf), 0);
	// handle the received bytes
}

Are you looking for something like this?

[Kingrap]

yes but i don't receive complete encrypted packet..
my source code:

--edit--

what is wrong?
my friend say:

you dont need the size of decryptet packet
your problem is that you dont recieve complete encrypted packet

[.Infinite]

You have to put your recv() function into a loop. Else you will not be able to receive packets longer than 255 bytes.

char recvbuf[255];
int n = 1;
while(n > 0)
{
	n = recv(Socket, recvbuf, sizeof(recvbuf), 0);
	packet.append(recvbuf);
}
packet = decrypt(packet)

[Kingrap]

thx i have solved