B eJd @sdZddlZddlZddlZddlmZmZmZGdddeZ Gdddej Z Gdd d ej Z Gd d d ej Z Gd d d ZdS)a; ELF file parser. This provides a class ``ELFFile`` that parses an ELF executable in a similar interface to ``ZipFile``. Only the read interface is implemented. Based on: https://gist.github.com/lyssdod/f51579ae8d93c8657a5564aefc2ffbca ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html N)IOOptionalTuplec@s eZdZdS) ELFInvalidN)__name__ __module__ __qualname__r r D/var/www/html/venv/lib/python3.7/site-packages/packaging/_elffile.pyrsrc@seZdZdZdZdS)EIClassN)rrrZC32ZC64r r r r r sr c@seZdZdZdZdS)EIDatar r N)rrrZLsbZMsbr r r r rsrc@s eZdZdZdZdZdZdZdS)EMachine(>N)rrrZI386ZS390ZArmZX8664ZAArc64r r r r rs rc@sReZdZdZeeddddZeee dfddd Z e e ed d d Z dS) ELFFilez. Representation of an ELF executable. N)freturnc Cs(||_y|d}Wntjk r2tdYnXt|dd}|dkrZtd||d|_|d|_y(ddd d d |j|jf\}|_|_ Wn.t k rtd |jd |jdYnXy,||\ }|_ }}|_ }|_ }|_|_Wn0tjk r"}ztd|Wdd}~XYnXdS)N16Bzunable to parse identificationsELFzinvalid magic: )z HHIIIIIHHHz >IIIIIIII)rr r)z HHIQQQIHHHz >IIQQQQQQ)rr r))r r )r r )r r )r r zunrecognized capacity (z) or encoding ()z/unable to parse machine and section information)_f_readstructerrorrbytescapacityencoding_p_fmt_p_idxKeyErrormachine_e_phoffflags _e_phentsize_e_phnum)selfridentmagice_fmt_er r r __init__,s.   ,zELFFile.__init__.)fmtrcCst||jt|S)N)runpackrreadcalcsize)r+r2r r r rZsz ELFFile._read)rc Csxt|jD]}|j|j|j|y||j}Wntj k rPw YnX||j ddkrfq |j||j dt |j ||j ddSWdS)zH The path recorded in the ``PT_INTERP`` section header. rrr r N)ranger*rseekr'r)rr#rrr$osfsdecoder4strip)r+indexdatar r r interpreter]s$zELFFile.interpreter)rrr__doc__rr r1strrintrpropertyrr>r r r r r's .r)r?enumr9rtypingrrr ValueErrorrIntEnumr rrrr r r r  s