Pwrite_Async appears to return 0 upon success, not number of bytes.

[noahmorrison1]

For the smb2_pwrite_async function, the callback function receives a status of 0 when a write completes successfully instead of the number of bytes written.

[sahlberg]

I created an example program using smb2_pwrite_async().
Please try current master.

The callback returns <0 if there is an error and >0 for number of bytes written.

[sahlberg]

Cant reproduce