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rufus/res/hogger/hogger.asm

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NASM
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; Rufus: The Reliable USB Formatting Utility
; Commandline hogger, assembly version (NASM)
; Copyright <20> 2014 Pete Batard <pete@akeo.ie>
;
; This program is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program. If not, see <http://www.gnu.org/licenses/>.
global _main
extern _GetStdHandle@4
extern _OpenMutexA@12
extern _WaitForSingleObject@8
extern _WriteFile@20
extern _ExitProcess@4
section .text
_main:
; DWORD size;
mov ebp, esp
sub esp, 4
; register HANDLE mutex [-> ecx], stdout [-> ebx];
; stdout = GetStdHandle(STD_OUTPUT_HANDLE);
push -11
call _GetStdHandle@4
mov ebx, eax
; mutex = OpenMutexA(SYNCHRONIZE, FALSE, "Global/Rufus_CmdLine");
push mutex_name
push 0
push 1048576 ; 0x00100000
call _OpenMutexA@12
mov ecx, eax
; if (mutex == NULL)
test eax, eax
; goto error
je error
; WaitForSingleObject(mutex, INFINITE);
push -1
push ecx
call _WaitForSingleObject@8
; goto out;
jmp out;
; error:
error:
; WriteFile(stdout, error_msg, sizeof(error_msg), &size, 0);
push 0
lea eax, [ebp-4]
push eax
push (error_msg_end - error_msg)
push error_msg
push ebx
call _WriteFile@20
; out:
out:
; ExitProcess(0)
push 0
call _ExitProcess@4
; Just in case...
hlt
mutex_name:
db "Global/Rufus_CmdLine",0
error_msg:
db "Unable to synchronize with GUI application.",0
error_msg_end: