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Line 3... Line 3...
3 
; Commands are always 3 numbers and followed by a space
 3 
; Commands are always 3 numbers and followed by a space
4 
; If a server decides it needs multiline output,
 4 
; If a server decides it needs multiline output,
5 
; first lines will have a dash instead of space after numbers,
 5 
; first lines will have a dash instead of space after numbers,
6 
; thus they are simply ignored in this simple command parser.
 6 
; thus they are simply ignored in this simple command parser.
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7 
 
 7 
 
8 
        cmp     dword[s], "150 "
 8 
        cmp     dword[buf_cmd], "150 "
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9 
        je      data_loop
 9 
        je      data_loop
10 
 
 10 
 
Line 11... Line 11...
11 
        cmp     dword[s], "220 "
 11 
        cmp     dword[buf_cmd], "220 "
12 
        je      welcome
 12 
        je      welcome
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13 
 
 13 
 
14 
;        cmp     dword[s], "226 "
 14 
;        cmp     dword[buf_cmd], "226 "
Line 15... Line 15...
15 
;        je      transfer_ok
 15 
;        je      transfer_ok
16 
 
 16 
 
Line 17... Line 17...
17 
        cmp     dword[s], "227 "
 17 
        cmp     dword[buf_cmd], "227 "
18 
        je      pasv_ok
 18 
        je      pasv_ok
Line 19... Line 19...
19 
 
 19 
 
20 
        cmp     dword[s], "230 "
 20 
        cmp     dword[buf_cmd], "230 "
Line 21... Line 21...
21 
        je      login_ok
 21 
        je      login_ok
22 
 
 22 
 
Line 23... Line 23...
23 
;        cmp     dword[s], "250"
 23 
;        cmp     dword[buf_cmd], "250"
24 
;        je      op_ok
 24 
;        je      op_ok
Line 25... Line 25...
25 
 
 25 
 
26 
        cmp     dword[s], "331 "
 26 
        cmp     dword[buf_cmd], "331 "
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        je      pass
 27 
        je      pass
28 
 
 28 
 
Line 29... Line 29...
29 
;        cmp     dword[s], "421 "
 29 
;        cmp     dword[buf_cmd], "421 "
30 
;        je      timeout
 30 
;        je      timeout
31 
 
 31 
 
Line 32... Line 32...
32 
        cmp     dword[s], "503 "         ; login first
 32 
        cmp     dword[buf_cmd], "503 "         ; login first
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64 
pasv_ok:
 64 
pasv_ok:
Line 65... Line 65...
65 
 
 65 
 
66 
        sub     ecx, 4
 66 
        sub     ecx, 4
67 
        jb      .fail
 67 
        jb      .fail
68 
        mov     al, "("
 68 
        mov     al, "("
69 
        mov     edi, s + 4
 69 
        mov     edi, buf_cmd + 4
Line 70... Line 70...
70 
        repne   scasb
 70 
        repne   scasb
71 
 
 71 
 
72 
        mcall   socket, AF_INET4, SOCK_STREAM, 0
 72 
        mcall   socket, AF_INET4, SOCK_STREAM, 0
Line 100... Line 100...
100 
        jmp     wait_for_servercommand
 100 
        jmp     wait_for_servercommand
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101 
 
 101 
 
Line 102... Line 102...
102 
 
 102 
 
Line 103... Line 103...
103 
data_loop:
 103 
data_loop:
104 
 
 104 
 
Line 105... Line 105...
105 
        invoke  con_write_asciiz, str2b
 105 
        invoke  con_write_asciiz, str_dot
106 
 
 106 
 
107 
        cmp     [operation], OPERATION_STOR
 107 
        cmp     [operation], OPERATION_STOR
108 
        je      .stor
 108 
        je      .stor
109 
 
 109 
 
Line 110... Line 110...
110 
; we are receiving data
 110 
; we are receiving data
111 
        mcall   recv, [datasocket], buffer_ptr2, BUFFERSIZE, 0
 111 
        mcall   recv, [datasocket], buf_buffer2, BUFFERSIZE, 0
Line -... Line 112...
- 
 
 112 
        test    ebx, ebx
- 
 
 113 
        jnz     .done
- 
 
 114 
        mov     byte[buf_buffer2 + eax], 0
112 
        test    ebx, ebx
 115 
 
113 
        jnz     .done
 116 
        cmp     [operation], OPERATION_RETR
114 
        mov     byte[buffer_ptr2 + eax], 0
 117 
        je      .retr
Line 115... Line 118...
115 
 
 118 
 
116 
        cmp     [operation], OPERATION_RETR
 119 
	    cmp 	[operation], OPERATION_RDIR
117 
        je      .retr
 120 
	    je 	    .rdir
118 
 
 121
119 
; not retreiving, just print to console
 122 
; not retreiving, just print to console
120 
        invoke  con_write_asciiz, buffer_ptr2
 123 
        invoke  con_write_asciiz, buf_buffer2
121 
        jmp     data_loop
 124 
        jmp     data_loop
122 
 
 125 
 
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137 
        je      .last_call
 140 
        je      .last_call
138 
        test    eax, eax        ; error
 141 
        test    eax, eax        ; error
139 
;        jne     .fileerror
 142 
;        jne     .fileerror
140 
        add     [filestruct.offset], ebx
 143 
        add     [filestruct.offset], ebx
141 
        mov     esi, ebx
 144 
        mov     esi, ebx
142 
        mcall   send, [datasocket], buffer_ptr2, , 0
 145 
        mcall   send, [datasocket], buf_buffer2, , 0
143 
        jmp     .stor
 146 
        jmp     .stor
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144 
 
 147 
 
145 
  .last_call:
 148 
  .last_call:
146 
        mov     esi, ebx
 149 
        mov     esi, ebx
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147 
        mcall   send, [datasocket], buffer_ptr2, , 0
 150 
        mcall   send, [datasocket], buf_buffer2, , 0
148 
 
 151 
 
149 
  .done:
 152 
  .done:
150 
        invoke  con_write_asciiz, str_close
 153 
        invoke  con_write_asciiz, str_close
151 
        mcall   close, [datasocket]
 154 
        mcall   close, [datasocket]
Line -... Line 155...
- 
 
 155 
        mov     [operation], OPERATION_NONE
- 
 
 156 
        jmp     wait_for_servercommand
- 
 
 157 
 
- 
 
 158 
 
- 
 
 159 
  .rdir:
- 
 
 160 
	cmp	[size_fname], 0
- 
 
 161 
	jne	.realloc
- 
 
 162 
 
- 
 
 163 
  .malloc:					; create a new dynamic block
- 
 
 164 
  	mov 	ecx, eax
- 
 
 165 
	inc 	ecx
- 
 
 166 
 
- 
 
 167 
	mcall	68,12	      			; eax now points to new buffer
- 
 
 168
- 
 
 169 
	test 	eax,eax
- 
 
 170 
	je 	error_heap
- 
 
 171 
 
- 
 
 172 
	mov 	[ptr_fname_start], eax
- 
 
 173 
 
- 
 
 174 
	jmp 	.rdir_init
- 
 
 175 
 
- 
 
 176 
  .realloc:					; expand block created with .malloc
- 
 
 177 
 
- 
 
 178 
  	mov 	ecx, eax			; eax is size of buffer received
- 
 
 179 
	inc	ecx
- 
 
 180 
 
- 
 
 181 
	add	ecx, [size_fname]		; added old size to form new required size
- 
 
 182 
 
- 
 
 183 
	mcall 	68,20,,[ptr_fname_start]
- 
 
 184 
 
- 
 
 185 
    	test	eax, eax
- 
 
 186 
	je	error_heap
- 
 
 187 
 
- 
 
 188 
	mov	[ptr_fname_start], eax		; eax contains the new block now
- 
 
 189 
	add	eax, [size_fname]
- 
 
 190 
 
- 
 
 191 
  .rdir_init:					; copies filenames into our buffer
- 
 
 192 
 
- 
 
 193 
	mov	esi, buf_buffer2
- 
 
 194 
	mov	edi, eax
- 
 
 195
- 
 
 196 
  .copy_buf:
- 
 
 197 
  	lodsb
- 
 
 198 
	cmp	al,13				; ignore any \r character
- 
 
 199 
	je 	.copy_buf
- 
 
 200 
	stosb
- 
 
 201 
 
- 
 
 202 
	cmp	al, 10
- 
 
 203 
	jne 	.not_end
- 
 
 204 
	inc 	[queued]
- 
 
 205 
 
- 
 
 206 
  .not_end:
- 
 
 207 
	test	al,al
- 
 
 208 
	jne 	.copy_buf
- 
 
 209
- 
 
 210 
	dec 	edi
- 
 
 211 
	dec 	edi
- 
 
 212 
 
- 
 
 213 
	mov	eax, [ptr_fname_start]
- 
 
 214 
	mov 	[ptr_queue], eax
- 
 
 215 
 
- 
 
 216 
	sub 	edi, eax		; edi contains the current size now
- 
 
 217 
	mov	[size_fname], edi
- 
 
 218 
 
- 
 
 219 
	jmp	data_loop
- 
 
 220
- 
 
 221 
 
- 
 
 222 
; files for rdir operation are queued
- 
 
 223 
transfer_queued:
- 
 
 224 
 
- 
 
 225 
	mov	esi, [ptr_queue]		; always pointing to current part of ptr_fname_start
- 
 
 226 
	mov 	edi, buf_cmd+5	   		; always point to filename for retr command
- 
 
 227 
 
- 
 
 228 
  .build_filename:
- 
 
 229 
	lodsb
- 
 
 230 
	stosb
- 
 
 231 
 
- 
 
 232 
	cmp 	al,10
- 
 
 233 
	je 	.get_file			; filename ends with character 10
- 
 
 234 
	test	al,al
- 
 
 235 
	jz	.null_found			; this should be end of buffer
- 
 
 236 
	jmp	.build_filename
- 
 
 237 
 
- 
 
 238 
  .null_found:
- 
 
 239 
 
- 
 
 240 
	mov	[queued],0
- 
 
 241 
	jmp 	.free
- 
 
 242 
 
- 
 
 243 
  .get_file:
- 
 
 244 
	dec	[queued]
- 
 
 245 
	jnz	.after_free
- 
 
 246
- 
 
 247 
  .free:
- 
 
 248 
	mcall	68,13,[ptr_fname_start]		; freeing the buffer
- 
 
 249 
	test	eax,eax
- 
 
 250 
	jz 	error_heap
- 
 
 251 
	jmp	wait_for_usercommand
- 
 
 252 
 
- 
 
 253 
  .after_free:
- 
 
 254 
	xor	al,al				; appending 0 after retr command
- 
 
 255 
	stosb
- 
 
 256 
	mov	eax, esi
152 
        mov     [operation], OPERATION_NONE
 257 
	mov	[ptr_queue], eax
153 
        jmp     wait_for_servercommand
 258
154 
 
 259 
	jmp	cmd_retr
155 
 
 260
156 
close_datacon:
 261 
close_datacon: