+ jmp _main_exit
+
+ _main_existing:
+ mov ebx, DWORD [ebp+_ARGV]
+ add ebx, 4
+ push DWORD [ebx]
+ ; push readfile_str
+ ; call printf
+
+ call readFile
+
+ mov eax, 0
+ jmp _main_exit
+
+ _main_exit:
+ %undef _ARGC
+ %undef _ARGV
+
+ mov esp, ebp
+ pop ebp
+ ret
+
+
+; reads file line by line
+; args: filename
+; return:
+; eax - pointer to mem
+; ecx - lines read
+readFile:
+ %define _FILE_NAME 8
+ %define FILE_HANDLE 4
+
+ push ebp
+ mov ebp, esp
+
+ ; allocate vars
+ sub esp, 4
+ mov DWORD [ebp-FILE_HANDLE], 0x00
+
+ ; open existing file
+ mov eax, 5
+ mov ebx, [ebp+_FILE_NAME]
+ mov ecx, 0
+ mov edx, 0777
+ int 0x80
+ mov [ebp-FILE_HANDLE], eax
+
+ ; check if file was open successfully
+ cmp eax, 0
+ jge _readFile_noerror
+ push eax
+ push wrongfile_str
+ call printf
+ jmp _readFile_exit
+
+ _readFile_noerror:
+ push DWORD [ebp-FILE_HANDLE]
+ call readLine
+
+ push eax
+ call printf
+
+ jmp _readFile_exit
+
+ _readFile_exit:
+ ; close file
+ mov eax, 6
+ mov ebx, [ebp-FILE_HANDLE]
+ int 0x80
+
+ %undef _FILE_NAME
+ %undef FILE_HANDLE
+
+ mov esp, ebp
+ pop ebp
+ ret
+
+
+; reads a line until newline character is reached
+; args: file_handle
+; return:
+; eax: location to buffer
+; ebx: contains eof
+readLine:
+ %define _FILE_HANDLE 8
+ %define CHAR_COUNT 4 ; count number of characters read
+ %define BLOCK_COUNT 8 ; number of 64 blocks we've read
+ %define STR_PTR 12 ; malloced buffer to store read string
+
+ push ebp
+ mov ebp, esp
+
+ ; allocate vars
+ sub esp, 8
+ mov DWORD [ebp-CHAR_COUNT], 0x00
+ mov DWORD [ebp-BLOCK_COUNT], 0x00
+
+ push 64
+ call malloc
+ mov [ebp-STR_PTR], eax
+
+ push DWORD [ebp-STR_PTR]
+ push 0x00
+ push 64
+
+ _readLine_loop:
+ ; if buffer is full
+ cmp BYTE [ebp-CHAR_COUNT], 63 ; leave one byte for null byte
+ jne _readLine_notfull
+ jmp _readLine_exit
+
+ _readLine_notfull:
+ ; read a single character
+ mov eax, 3
+ mov ebx, [ebp+_FILE_HANDLE]
+ mov ecx, [ebp-STR_PTR]
+ add ecx, [ebp-CHAR_COUNT]
+ mov edx, 1