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| INADDR_ANY equ 0 |
| INADDR_LOOPBACK equ 7F000001h |
| INADDR_BROADCAST equ 0FFFFFFFFh |
| INADDR_NONE equ 0FFFFFFFFh |
| |
| SOCK_STREAM equ 1 |
| SOCK_DGRAM equ 2 |
| |
| SOCKEVENT_READ equ 01h |
| SOCKEVENT_WRITE equ 02h |
| SOCKEVENT_OOB equ 04h |
| SOCKEVENT_ACCEPT equ 08h |
| SOCKEVENT_CONNECT equ 10h |
| SOCKEVENT_CLOSE equ 20h |
| |
| |
| [absolute 0] |
| SOCKADDR: |
| .Port resw 1 |
| .Address resd 1 |
| SOCKADDR_size: |
| [section .text] |
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| [absolute 0] |
| HOSTENT: |
| .Name resd 1 |
| .Aliases resd 1 |
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| .AddrList resd 1 |
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| HOSTENT_size: |
| [section .text] |
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| [extern DPMI_Int] |
| [extern _AllocTransferBuf] |
| [extern _FreeTransferBuf] |
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| [extern DPMI_Regs] |
| [extern DPMI_EDI] |
| [extern DPMI_ESI] |
| [extern DPMI_EBP] |
| [extern DPMI_EBX] |
| [extern DPMI_EDX] |
| [extern DPMI_ECX] |
| [extern DPMI_EAX] |
| [extern DPMI_FLAGS] |
| [extern DPMI_ES] |
| [extern DPMI_DS] |
| [extern DPMI_FS] |
| [extern DPMI_GS] |
| [extern DPMI_SP] |
| [extern DPMI_SS] |
| |
| [extern _Transfer_Buf] |
| [extern _Transfer_Buf_Seg] |
| [extern _Transfer_Buf_Size] |
| |
| DPMI_EDI_off equ 00h |
| DPMI_ESI_off equ 04h |
| DPMI_EBP_off equ 08h |
| |
| DPMI_EBX_off equ 10h |
| DPMI_EDX_off equ 14h |
| DPMI_ECX_off equ 18h |
| DPMI_EAX_off equ 1Ch |
| DPMI_FLAGS_off equ 20h |
| DPMI_ES_off equ 22h |
| DPMI_DS_off equ 24h |
| DPMI_FS_off equ 26h |
| DPMI_GS_off equ 28h |
| DPMI_IP_off equ 2Ah |
| DPMI_CS_off equ 2Ch |
| DPMI_SP_off equ 2Eh |
| DPMI_SS_off equ 30h |
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| [extern _AllocMem] |
| [extern _AllocSelector] |
| [extern _FreeSelector] |
| [extern _GetPhysicalMapping] |
| [extern _FreePhysicalMapping] |
| [extern _LockArea] |
| |
| _AllocMem_arglen equ 4 |
| _AllocSelector_arglen equ 4 |
| _FreeSelector_arglen equ 2 |
| _GetPhysicalMapping_arglen equ 16 |
| _FreePhysicalMapping_arglen equ 8 |
| _LockArea_arglen equ 10 |
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| [extern _Install_Int] |
| [extern _Remove_Int] |
| [extern _Exit_IRQ] |
| [extern _Init_IRQ] |
| [extern _Restore_IRQ] |
| [extern _Enable_IRQ] |
| [extern _Disable_IRQ] |
| |
| _Install_Int_arglen equ 8 |
| _Remove_Int_arglen equ 4 |
| _Restore_IRQ_arglen equ 4 |
| _Enable_IRQ_arglen equ 4 |
| _Disable_IRQ_arglen equ 4 |
| |
| [bits 32] |
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| SOCKET_INIT equ 5001h |
| SOCKET_EXIT equ 5002h |
| SOCKET_ACCEPT equ 5003h |
| SOCKET_BIND equ 5004h |
| SOCKET_CLOSE equ 5005h |
| SOCKET_CONNECT equ 5006h |
| SOCKET_GETPEERNAME equ 5007h |
| SOCKET_GETSOCKNAME equ 5008h |
| SOCKET_INETADDR equ 5009h |
| SOCKET_INETNTOA equ 500Ah |
| SOCKET_LISTEN equ 500Bh |
| SOCKET_RECV equ 500Ch |
| SOCKET_RECVFROM equ 500Dh |
| SOCKET_SEND equ 500Eh |
| SOCKET_SENDTO equ 500Fh |
| SOCKET_SHUTDOWN equ 5010h |
| SOCKET_CREATE equ 5011h |
| SOCKET_GETHOSTBYADDR equ 5012h |
| SOCKET_GETHOSTBYNAME equ 5013h |
| SOCKET_GETHOSTNAME equ 5014h |
| SOCKET_INSTALLCALLBACK equ 5015h |
| SOCKET_REMOVECALLBACK equ 5016h |
| SOCKET_ADDCALLBACK equ 5017h |
| SOCKET_GETCALLBACKINFO equ 5018h |
| |
| |
| STRING_MAX equ 256 |
| HOSTENT_ALIASES_MAX equ 16 |
| HOSTENT_ADDRLIST_MAX equ 16 |
| |
| [section .bss] |
| |
| Callback_Address resd 1 |
| Callback_Int resb 1 |
| Multiplex_Handle resw 1 |
| VDD_Handle resw 1 |
| LastError resd 1 |
| NetAddr_static resb STRING_MAX |
| HostEnt_Name_static resb STRING_MAX |
| HostEnt_Aliases_static resd HOSTENT_ALIASES_MAX |
| HostEnt_AddrList_static resd HOSTENT_ADDRLIST_MAX |
| HostEnt_Aliases_data resb STRING_MAX*HOSTENT_ALIASES_MAX |
| HostEnt_AddrList_data resd HOSTENT_ADDRLIST_MAX |
| |
| [section .data] |
| |
| rcsid db '$Id: socket.asm,v 1.1 2001/11/21 08:41:53 peter Exp $',0 |
| |
| ALTMPX_Signature db 'ECE291 ', 'EX291 ', 0 |
| ALTMPX_MinVersion equ 0100h |
| SOCKET_Version equ 0100h |
| HostEnt_static : |
| ..@44.strucstart: |
| times HOSTENT.Name-($-..@44.strucstart) db 0 |
| dd HostEnt_Name_static |
| times HOSTENT.Aliases-($-..@44.strucstart) db 0 |
| dd HostEnt_Aliases_static |
| times HOSTENT.AddrList-($-..@44.strucstart) db 0 |
| dd HostEnt_AddrList_static |
| times HOSTENT_size-($-..@44.strucstart) db 0 |
| |
| |
| VDD_InitData |
| dw SOCKET_Version |
| dd STRING_MAX |
| dd HOSTENT_ALIASES_MAX |
| dd HOSTENT_ADDRLIST_MAX |
| dd LastError |
| dd NetAddr_static |
| dd HostEnt_Name_static |
| dd HostEnt_Aliases_static |
| dd HostEnt_AddrList_static |
| dd HostEnt_Aliases_data |
| dd HostEnt_AddrList_data |
| |
| [section .text] |
| |
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| [global _InitSocket] |
| _InitSocket |
| push esi |
| push edi |
| push es |
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| |
| |
| cld |
| |
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| xor eax, eax |
| mov cx, 1 |
| int 31h |
| jc near .error |
| mov bx, ax |
| |
| |
| mov ax, 0008h |
| xor ecx, ecx |
| mov dx, 0FFFFh |
| int 31h |
| jc near .errorfree |
| |
| xor eax, eax |
| |
| .loop: |
| mov esi, eax |
| mov [DPMI_EAX], eax |
| push bx |
| mov bx, 2Dh |
| call DPMI_Int |
| pop bx |
| cmp byte [DPMI_EAX], 0FFh |
| jne .next |
| |
| |
| cmp word [DPMI_ECX], ALTMPX_MinVersion |
| jb .next |
| |
| |
| mov ax, 0007h |
| movzx edx, word [DPMI_EDX] |
| shl edx, 4 |
| mov ecx, edx |
| shr ecx, 16 |
| int 31h |
| jc .errorfree |
| |
| mov es, ebx |
| movzx edi, word [DPMI_EDI] |
| mov ecx, 16/2 |
| mov esi, ALTMPX_Signature |
| rep cmpsw |
| jz .foundmpx |
| |
| .next: |
| inc ah |
| jnz .loop |
| |
| jmp short .errorfree |
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| .foundmpx: |
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| mov ax, 0001h |
| int 31h |
| |
| |
| mov eax, [DPMI_EAX] |
| mov [Multiplex_Handle], ax |
| mov al, 10h |
| mov [DPMI_EAX], ax |
| push bx |
| mov bx, 2Dh |
| call DPMI_Int |
| pop bx |
| cmp byte [DPMI_EAX], 1 |
| jne .error |
| mov dx, [DPMI_EDX] |
| mov [VDD_Handle], dx |
| |
| |
| mov ecx, VDD_InitData |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_INIT<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| jc .error |
| |
| xor eax, eax |
| jmp short .exit |
| |
| .errorfree: |
| mov ax, 0001h |
| int 31h |
| |
| .error: |
| xor eax, eax |
| inc eax |
| |
| .exit: |
| pop es |
| pop edi |
| pop esi |
| ret |
| |
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| [global _ExitSocket] |
| _ExitSocket |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_EXIT<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| ret |
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| [global _Socket_SetCallback] |
| _Socket_SetCallback: push ebp |
| mov ebp, esp |
| |
| |
| .HandlerAddress equ 8 |
| |
| |
| |
| |
| |
| mov ax, [Multiplex_Handle] |
| mov al, 11h |
| mov [DPMI_EAX], ax |
| mov bx, 2Dh |
| call DPMI_Int |
| cmp byte [DPMI_EAX], 1 |
| jne near .error |
| |
| movzx edx, byte [DPMI_EDX] |
| mov [Callback_Int], dl |
| |
| mov ecx, [Callback_Address] |
| mov eax, [ebp+.HandlerAddress] |
| mov [Callback_Address], eax |
| test eax, eax |
| jz near .deinstall |
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| test ecx, ecx |
| jnz near .ok |
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| push dword 4 |
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| push dword Callback_Address |
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| o16 push ds |
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| call _LockArea |
| add esp, byte _LockArea_arglen |
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| push dword 1 |
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| push dword Callback_Int |
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| o16 push ds |
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| call _LockArea |
| add esp, byte _LockArea_arglen |
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| push dword Socket_InterruptHandler_end-Socket_InterruptHandler |
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| push dword Socket_InterruptHandler |
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| o16 push cs |
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| call _LockArea |
| add esp, byte _LockArea_arglen |
| movzx edx, byte [DPMI_EDX] |
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| push dword Socket_InterruptHandler |
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| push edx |
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| call _Install_Int |
| add esp, byte _Install_Int_arglen |
| test eax, eax |
| jnz .error |
| |
| movzx edx, byte [Callback_Int] |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_INSTALLCALLBACK<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| test eax, eax |
| jz .end |
| |
| mov dword [Callback_Address], 0 |
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| push edx |
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| call _Remove_Int |
| add esp, byte _Remove_Int_arglen |
| jmp short .error |
| |
| .deinstall: |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_REMOVECALLBACK<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| |
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| push edx |
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| call _Remove_Int |
| add esp, byte _Remove_Int_arglen |
| xor eax, eax |
| jmp short .end |
| |
| .ok: |
| xor eax, eax |
| mov esp, ebp |
| pop ebp |
| ret |
| .error: |
| xor eax, eax |
| inc eax |
| .end: |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_AddCallback] |
| _Socket_AddCallback: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .EventMask equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_ADDCALLBACK<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| Socket_InterruptHandler |
| |
| mov eax, [Callback_Address] |
| test eax, eax |
| jz .chain |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_GETCALLBACKINFO<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| test eax, eax |
| jnz .chain |
| |
| push edx |
| push ecx |
| call dword [Callback_Address] |
| add esp, byte 8 |
| |
| .done: |
| |
| mov al, 20h |
| cmp byte [Callback_Int], 50h |
| jb .lowirq |
| out 0A0h, al |
| .lowirq: |
| out 20h, al |
| |
| xor eax, eax |
| ret |
| |
| .chain: |
| mov eax, 1 |
| ret |
| Socket_InterruptHandler_end |
| |
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| [global _Socket_accept] |
| _Socket_accept: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .Name equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_ACCEPT<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_bind] |
| _Socket_bind: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .Name equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_BIND<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_close] |
| _Socket_close: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_CLOSE<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_connect] |
| _Socket_connect: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .Name equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_CONNECT<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| |
| [global _Socket_getpeername] |
| _Socket_getpeername: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .Name equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_GETPEERNAME<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
| |
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| |
| |
| [global _Socket_getsockname] |
| _Socket_getsockname: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .Name equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_GETSOCKNAME<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
| |
| |
| |
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| |
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| |
| |
| |
| [global _Socket_ntohl] |
| _Socket_ntohl |
| |
| |
| |
| |
| |
| |
| |
| [global _Socket_htonl] |
| _Socket_htonl: push ebp |
| mov ebp, esp |
| |
| |
| .HostVal equ 8 |
| |
| |
| |
| mov eax, [ebp+.HostVal] |
| bswap eax |
| |
| mov esp, ebp |
| pop ebp |
| ret |
| |
| |
| |
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| |
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| |
| |
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| |
| |
| |
| |
| |
| |
| |
| |
| [global _Socket_ntohs] |
| _Socket_ntohs |
| |
| |
| |
| |
| |
| |
| |
| [global _Socket_htons] |
| _Socket_htons: push ebp |
| mov ebp, esp |
| |
| |
| .HostVal equ 8 |
| |
| |
| |
| mov ax, [ebp+.HostVal] |
| xchg al, ah |
| mov esp, ebp |
| pop ebp |
| ret |
| |
| |
| |
| |
| |
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| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| [global _Socket_inet_addr] |
| _Socket_inet_addr: push ebp |
| mov ebp, esp |
| |
| |
| .DottedAddress equ 8 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_INETADDR<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
| |
| |
| |
| |
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| |
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| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| [global _Socket_inet_ntoa] |
| _Socket_inet_ntoa: push ebp |
| mov ebp, esp |
| |
| |
| .Address equ 8 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_INETNTOA<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov eax, NetAddr_static |
| mov esp, ebp |
| pop ebp |
| ret |
| |
| |
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| |
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| |
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| |
| |
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| |
| |
| |
| [global _Socket_listen] |
| _Socket_listen: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .BackLog equ 12 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_LISTEN<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
| |
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| |
| |
| |
| [global _Socket_recv] |
| _Socket_recv: push ebp |
| mov ebp, esp |
| |
| |
| .Socket equ 8 |
| |
| |
| .Buf equ 12 |
| |
| |
| .MaxLen equ 16 |
| |
| |
| .Flags equ 20 |
| |
| |
| |
| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_RECV<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
| |
| |
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| [global _Socket_recvfrom] |
| _Socket_recvfrom: push ebp |
| mov ebp, esp |
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| .Socket equ 8 |
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| .Buf equ 12 |
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| .MaxLen equ 16 |
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| .Flags equ 20 |
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| .From equ 24 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_RECVFROM<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_send] |
| _Socket_send: push ebp |
| mov ebp, esp |
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| .Socket equ 8 |
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| .Buf equ 12 |
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| .Len equ 16 |
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| .Flags equ 20 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_SEND<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_sendto] |
| _Socket_sendto: push ebp |
| mov ebp, esp |
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| .Socket equ 8 |
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| .Buf equ 12 |
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| .Len equ 16 |
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| .Flags equ 20 |
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| .To equ 24 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_SENDTO<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_shutdown] |
| _Socket_shutdown: push ebp |
| mov ebp, esp |
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| .Socket equ 8 |
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| .Flags equ 12 |
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| mov eax, [ebp+.Flags] |
| test eax, eax |
| jz .done |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_SHUTDOWN<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| .done: |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_create] |
| _Socket_create: push ebp |
| mov ebp, esp |
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| .Type equ 8 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_CREATE<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_gethostbyaddr] |
| _Socket_gethostbyaddr: push ebp |
| mov ebp, esp |
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| .Address equ 8 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_GETHOSTBYADDR<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| test eax, eax |
| jz .done |
| mov eax, HostEnt_static |
| .done: |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_gethostbyname] |
| _Socket_gethostbyname: push ebp |
| mov ebp, esp |
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| .Name equ 8 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_GETHOSTBYNAME<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| test eax, eax |
| jz .done |
| mov eax, HostEnt_static |
| .done: |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_gethostname] |
| _Socket_gethostname: push ebp |
| mov ebp, esp |
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| .Name equ 8 |
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| .NameLen equ 12 |
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| clc |
| movzx eax, word [VDD_Handle] |
| or eax, SOCKET_GETHOSTNAME<<16 |
| db 0C4h, 0C4h, 058h, 002h |
| mov esp, ebp |
| pop ebp |
| ret |
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| [global _Socket_GetLastError] |
| _Socket_GetLastError |
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| mov eax, [LastError] |
| ret |
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