| 207,12 → 207,8 |
|---|
| |
| xchg bh, bl |
| mov [eax + SOCKET.LocalPort], bx |
| ; mov [eax + 12], byte bh ; Local port ( LS 16 bits ) |
| ; mov [eax + 13], byte bl ; Local port ( LS 16 bits ) |
| xchg ch, cl |
| mov [eax + SOCKET.RemotePort], cx |
| ; mov [eax + 20], ch ; Remote Port ( LS 16 bits ) |
| ; mov [eax + 21], cl ; Remote Port ( LS 16 bits ) |
| |
| mov ebx, [stack_ip] |
| mov [eax + SOCKET.LocalIP], ebx |
| 547,7 → 543,74 |
|---|
| ret |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; socket_read_packet |
| ; |
| ; Description |
| ; socket # in ebx |
| ; datapointer # in ecx |
| ; buffer size in edx |
| ; returns # of bytes copied in eax |
| ; |
| ;*************************************************************************** |
| socket_read_packet: |
| Index2RealAddr ebx ; get real socket address |
| mov eax, [ebx + SOCKET.rxDataCount] ; get count of bytes |
| test eax, eax ; if count of bytes is zero.. |
| jz .exit ; exit function (eax will be zero) |
| |
| test edx, edx ; if buffer size is zero, copy all data |
| jz .copyallbytes |
| cmp edx, eax ; if buffer size is larger then the bytes of data, copy all data |
| jge .copyallbytes |
| |
| sub eax, edx ; store new count (data bytes in buffer - bytes we're about to copy) |
| mov [ebx + SOCKET.rxDataCount], eax ; |
| push eax |
| mov eax, edx ; number of bytes we want to copy must be in eax |
| call .startcopy ; copy to the application |
| |
| mov esi, ebx ; now we're going to copy the remaining bytes to the beginning |
| add esi, SOCKETHEADERSIZE ; we dont need to copy the header |
| mov edi, esi ; edi is where we're going to copy to |
| add esi, edx ; esi is from where we copy |
| pop ecx ; count of bytes we have left |
| push ecx ; push it again so we can re-use it later |
| shr ecx, 2 ; divide eax by 4 |
| cld |
| rep movsd ; copy all full dwords |
| pop ecx |
| and ecx, 3 |
| rep movsb ; copy remaining bytes |
| |
| ret ; at last, exit |
| |
| .copyallbytes: |
| xor esi, esi |
| mov [ebx + SOCKET.rxDataCount], esi ; store new count (zero) |
| |
| .startcopy: |
| mov edi, ecx ; |
| add edi, std_application_base_address ; get data pointer to buffer in application |
| |
| mov esi, ebx ; |
| add esi, SOCKETHEADERSIZE ; we dont need to copy the header |
| mov ecx, eax ; eax is count of bytes |
| push ecx |
| shr ecx, 2 ; divide eax by 4 |
| cld ; copy all full dwords |
| rep movsd ; |
| pop ecx |
| and ecx, 3 |
| rep movsb ; copy the rest bytes |
| |
| .exit: |
| ret ; exit, or go back to shift remaining bytes if any |
| |
| |
| |
| |
| ;*************************************************************************** |
| ; Function |
| ; socket_write |