Fix clipboard file size handling

[OJ]

This is a small fix to extapi's clipboard functionality. When files are captured on the clipboard, the file sizes are incorrectly reported because they were being stored after a call to htonq. When sending the value down the wire, a call to packet_add_tlv_qword was being used, which by itself does another call to htonq, resulting in the bytes being reversed again.

This patch removes the unnecessary manual call, and results in correctly reported file sizes when the clipboard is in use.

Verification

• [x] Get a windows meterpreter session going.
• [x] Load extapi via use extapi.
• [x] On the target, select any file on the file system and press CTRL+C.
• [x] In the Meterpreter session, execute clipboard_get_data.
• [x] Verify that the reported file size is correct.

[metasploit-public-bot]

Test PASSED. Refer to this link for build results (access rights to CI server needed): https://ci.metasploit.com//job/GPR-MeterpreterWin/208/ Test PASSED.

[bcook-r7]

Looks good:

meterpreter > clipboard_get_data
Files captured at 2015-06-28 17:28:08.0911
==========================================
Remote Path : C:\Users\bcook\Desktop\Dbgview.exe
File size   : 468056 bytes

[OJ]

Thank you sir!