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Rev Author Line No. Line
3701 hidnplayr 1 
server_parser:
2 
 
3 
; Commands are always 3 numbers and followed by a space
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; If a server decides it needs multiline output,
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; first lines will have a dash instead of space after numbers,
3789 hidnplayr 6 
; thus they are simply ignored in this simple command parser.
3701 hidnplayr 7 
 
8 
        cmp     dword[s], "150 "
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        je      data_ok
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11 
        cmp     dword[s], "220 "
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        je      welcome
13 
 
3790 hidnplayr 14 
;        cmp     dword[s], "226 "
3967 hidnplayr 15 
;        je      transfer_ok
3789 hidnplayr 16 
 
3701 hidnplayr 17 
        cmp     dword[s], "227 "
18 
        je      pasv_ok
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20 
        cmp     dword[s], "230 "
21 
        je      login_ok
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3790 hidnplayr 23 
;        cmp     dword[s], "250"
3800 hidnplayr 24 
;        je      op_ok
3790 hidnplayr 25 
 
3701 hidnplayr 26 
        cmp     dword[s], "331 "
27 
        je      pass
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3790 hidnplayr 29 
;        cmp     dword[s], "421 "
3789 hidnplayr 30 
;        je      timeout
3701 hidnplayr 31 
 
3818 hidnplayr 32 
        cmp     dword[s], "503 "         ; login first
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        je      welcome
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3800 hidnplayr 35 
        cmp     dword[s], "530 "         ; password incorrect
3789 hidnplayr 36 
        je      welcome
3701 hidnplayr 37 
 
3800 hidnplayr 38 
        cmp     dword[s], "550 "
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        je      close_datacon
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3789 hidnplayr 41 
        jmp     wait_for_usercommand
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3701 hidnplayr 44 
welcome:
45 
 
46 
        mov     [status], STATUS_CONNECTED
3789 hidnplayr 47 
        jmp     wait_for_usercommand
3701 hidnplayr 48 
 
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pass:
51 
 
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        mov     [status], STATUS_NEEDPASSWORD
3789 hidnplayr 53 
        jmp     wait_for_usercommand
3701 hidnplayr 54 
 
55 
 
56 
login_ok:
57 
 
58 
        mov     [status], STATUS_LOGGED_IN
3789 hidnplayr 59 
        jmp     wait_for_usercommand
3701 hidnplayr 60 
 
61 
 
62 
pasv_ok:
63 
 
3818 hidnplayr 64 
        sub     ecx, 4
3701 hidnplayr 65 
        jb      .fail
66 
        mov     al, "("
3818 hidnplayr 67 
        mov     edi, s + 4
3701 hidnplayr 68 
        repne   scasb
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70 
        mcall   socket, AF_INET4, SOCK_STREAM, 0
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        cmp     eax, -1
3813 hidnplayr 72 
        je      error_socket
3701 hidnplayr 73 
        mov     [datasocket], eax
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75 
        mov     esi, edi
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        call    ascii_dec
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        mov     byte[sockaddr2.ip+0], bl
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        call    ascii_dec
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        mov     byte[sockaddr2.ip+1], bl
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        call    ascii_dec
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        mov     byte[sockaddr2.ip+2], bl
82 
        call    ascii_dec
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        mov     byte[sockaddr2.ip+3], bl
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85 
        call    ascii_dec
3789 hidnplayr 86 
        mov     byte[sockaddr2.port+0], bl
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        call    ascii_dec
3701 hidnplayr 88 
        mov     byte[sockaddr2.port+1], bl
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3789 hidnplayr 90 
        invoke  con_write_asciiz, str_open
3701 hidnplayr 91 
        mcall   connect, [datasocket], sockaddr2, 18
3818 hidnplayr 92 
;        cmp     eax, -1
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;        je      error_socket
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        jmp     wait_for_servercommand
3701 hidnplayr 95 
 
96 
  .fail:
3818 hidnplayr 97 
        invoke  con_write_asciiz, str_unknown
3789 hidnplayr 98 
        jmp     wait_for_servercommand
3701 hidnplayr 99 
 
100 
 
101 
data_ok:
102 
 
3967 hidnplayr 103 
        invoke  con_write_asciiz, str2b
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3800 hidnplayr 105 
        cmp     [operation], OPERATION_STOR
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        je      .stor
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108 
; we are receiving data
3792 hidnplayr 109 
        mcall   recv, [datasocket], buffer_ptr2, BUFFERSIZE, 0
110 
        test    ebx, ebx
3800 hidnplayr 111 
        jnz     .done
3790 hidnplayr 112 
        mov     byte[buffer_ptr2 + eax], 0
3701 hidnplayr 113 
 
3800 hidnplayr 114 
        cmp     [operation], OPERATION_RETR
115 
        je      .retr
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117 
; not retreiving, just print to console
3790 hidnplayr 118 
        invoke  con_write_asciiz, buffer_ptr2
3800 hidnplayr 119 
        jmp     data_ok
3789 hidnplayr 120 
 
3800 hidnplayr 121 
; retreiving, save to file
122 
  .retr:
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        mov     [filestruct.ptr], buffer_ptr2
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        mov     [filestruct.size], eax
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        push    eax
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        mcall   70, filestruct
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        pop     eax
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        add     [filestruct.offset], eax
3792 hidnplayr 129 
        jmp     data_ok
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3800 hidnplayr 131 
; storing, send all data
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  .stor:
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        mcall   70, filestruct
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        cmp     eax, 6          ; end of file
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        je      .last_call
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        test    eax, eax        ; error
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;        jne     .fileerror
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        add     [filestruct.offset], ebx
139 
        mov     esi, ebx
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        mcall   send, [datasocket], buffer_ptr2, , 0
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        jmp     .stor
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143 
  .last_call:
144 
        mov     esi, ebx
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        mcall   send, [datasocket], buffer_ptr2, , 0
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147 
  .done:
3967 hidnplayr 148 
        invoke  con_write_asciiz, str_close
3789 hidnplayr 149 
        mcall   close, [datasocket]
150 
        jmp     wait_for_servercommand
3701 hidnplayr 151 
 
152 
 
3800 hidnplayr 153 
 
154 
close_datacon:
3967 hidnplayr 155 
        invoke  con_write_asciiz, str_close
3800 hidnplayr 156 
        mcall   close, [datasocket]
157 
        jmp     wait_for_usercommand
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159 
 
160 
 
3701 hidnplayr 161 
ascii_dec:
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163 
        xor     ebx, ebx
3789 hidnplayr 164 
        mov     cl, 4                   ; max length is 3 digits + 1 separator
3701 hidnplayr 165 
  .loop:
166 
        lodsb
167 
        sub     al, '0'
168 
        jb      .done
169 
        cmp     al, 9
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        ja      .done
3789 hidnplayr 171 
        lea     ebx, [ebx*4+ebx]        ; ebx *5
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        shl     ebx, 1                  ; ebx *2
3701 hidnplayr 173 
        add     bl, al
174 
        dec     cl
175 
        jnz     .loop
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177 
  .done:
178 
        ret