string - Why is this QString to const char* conversion producing a Debian identifier on Windows? -

i'm trying wrap libssh2 in qt, , have following code:

const char* username = inusername.tolocal8bit().data(); const char* password = inpass.tolocal8bit().data(); 

problem is, username , password doesn't connect system. why?

because, according debugger,

username  "5.1p1 debian-6ubuntu2" password  "5.1p1 debian-6ubuntu2" 

those not values i've given username or password. i've tried toascii, tolatin1, , appending (or not) .data(). still, these values, instead of expected values. i'm on windows, why it's more troubling, since, far can tell, nothing have compiled on debian or ubuntu.

what's going on here?

this code:

const char* username = inusername.tolocal8bit().data(); 

is equivalent this:

const char * username; {     const qbytearray l8b = inusername.tolocal8bit();     username = l8b.data(); } 

do see what's going on? time statement has executed, temporary qbytearray has been deleted compiler again. since data() returns pointer internal qbytearray buffer, username points deleted/freed memory.

to solve problem, make username , password qbytearrays instead of const char*s, , use username.data(), password.data() instead used username, password before.