| 0,0 → 1,156 |
|---|
| |
| include 'proc32.inc' |
| |
| DLL_ENTRY equ 1 |
| DLL_EXIT equ -1 |
| REQ_DLL_VER equ 3 |
| |
| use32 |
| db 'MENUET01' |
| dd 1 |
| dd start |
| dd i_end |
| dd mem |
| dd mem |
| dd 0 |
| dd 0 |
| |
| start: |
| stdcall load_dll_and_import, dllname, imports |
| test eax, eax |
| jz exit |
| |
| ; check version |
| cmp word [dll_ver], REQ_DLL_VER |
| jb exit |
| cmp word [dll_ver+2], REQ_DLL_VER |
| ja exit |
| push DLL_ENTRY |
| call [dll_start] |
| |
| ; yes! Now do some work (gets() demo in this case). |
| |
| push caption |
| push -1 |
| push -1 |
| push -1 |
| push -1 |
| call [con_init] |
| |
| ; C-equivalent of the following code: |
| ; for (;;) |
| ; { |
| ; con_write_asciiz("Enter string (empty for exit): "); |
| ; if (!con_gets(s,256)) break; |
| ; if (s[0] == '\n') break; |
| ; con_write_asciiz("You entered: "); |
| ; con_write_asciiz(s); |
| ; } |
| mainloop: |
| push str1 |
| call [con_write_asciiz] |
| push 256 |
| push s |
| call [con_gets] |
| test eax, eax |
| jz done |
| cmp [s], 10 |
| jz done |
| push str2 |
| call [con_write_asciiz] |
| push s |
| call [con_write_asciiz] |
| jmp mainloop |
| done: |
| push 1 |
| call [con_exit] |
| exit: |
| or eax, -1 |
| int 0x40 |
| |
| proc load_dll_and_import stdcall, _dllname:dword, _imports:dword |
| pushad |
| ; load DLL |
| push 68 |
| pop eax |
| push 19 |
| pop ebx |
| mov ecx, [_dllname] |
| int 0x40 |
| test eax, eax |
| jz import_fail |
| |
| ; initialize import |
| mov edi, eax |
| mov esi, [_imports] |
| import_loop: |
| lodsd |
| test eax, eax |
| jz import_done |
| mov edx, edi |
| import_find: |
| mov ebx, [edx] |
| test ebx, ebx |
| jz import_not_found |
| push eax |
| @@: |
| mov cl, [eax] |
| cmp cl, [ebx] |
| jnz import_find_next |
| test cl, cl |
| jz import_found |
| inc eax |
| inc ebx |
| jmp @b |
| import_find_next: |
| pop eax |
| add edx, 8 |
| jmp import_find |
| import_found: |
| pop eax |
| mov eax, [edx+4] |
| mov [esi-4], eax |
| jmp import_loop |
| import_not_found: |
| import_fail: |
| popad |
| xor eax, eax |
| ret |
| import_done: |
| popad |
| xor eax, eax |
| inc eax |
| ret |
| endp |
| |
| align 4 |
| |
| imports: |
| dll_start dd szStart |
| dll_ver dd szVersion |
| con_init dd szcon_init |
| con_write_asciiz dd szcon_write_asciiz |
| con_exit dd szcon_exit |
| con_gets dd szcon_gets |
| dd 0 |
| |
| szStart db 'START',0 |
| szVersion db 'version',0 |
| szcon_init db 'con_init',0 |
| szcon_write_asciiz db 'con_write_asciiz',0 |
| szcon_exit db 'con_exit',0 |
| szcon_gets db 'con_gets',0 |
| |
| dllname db '/sys/lib/console.obj',0 |
| |
| caption db 'Console test - gets()',0 |
| str1 db 'Enter string (empty for exit): ',0 |
| str2 db 'You entered: ',0 |
| |
| i_end: |
| |
| s rb 256 |
| |
| align 4 |
| rb 2048 ; stack |
| mem: |