Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
14	66	future.backports.email.message.Message._get_params_preserve	call site: {node_id}	builtins.list
8	43	future.backports.email.charset.Charset.__init__	call site: {node_id}	future.backports.email.header.Header.append
5	93	future.backports.email.message._unquotevalue	call site: {node_id}	future.backports.email.message.Message.get
4	20	future.backports.email.message.Message.add_header	call site: {node_id}	future.backports.email.message.Message.set_boundary
3	31	future.backports.email._policybase.Compat32._sanitize_header	call site: {node_id}	future.backports.email.header.Header.__init__
3	100	future.backports.email.message.Message.set_charset	call site: {node_id}	future.backports.email.message.Message.add_header
2	9	future.backports.email.message.Message.add_header	call site: {node_id}	k.replace
2	87	future.backports.email.message.Message.set_payload	call site: {node_id}	future.backports.email.message.Message.del_param
2	113	future.backports.email.message.Message.get_param	call site: {node_id}	future.backports.email.message._formatparam
1	36	future.backports.email.charset.Charset.__init__	call site: {node_id}	builtins.str
1	56	future.backports.email.message._parseparam	call site: {node_id}	s.find
1	123	future.backports.email.message.Message.set_charset	call site: {node_id}	charset.body_encode

Fuzzer calltree


         ...fuzz_future_email.TestOneInput

[function] [call site] 00000


           atheris.FuzzedDataProvider

[function] [call site] 00001


           fdp.ConsumeIntInRange

[function] [call site] 00002


           fdp.ConsumeUnicodeNoSurrogates

[function] [call site] 00003


           future.backports.email.mime.multipart.MIMEMultipart.__init__

[function] [call site] 00004


             future.backports.email.mime.base.MIMEBase.__init__

[function] [call site] 00005


               future.backports.email.message.Message.__init__

[function] [call site] 00006


                 builtins.list

[function] [call site] 00007


               future.backports.email.message.Message.add_header

[function] [call site] 00008


                 _params.items

[function] [call site] 00009


                 k.replace

[function] [call site] 00010


                 parts.append

[function] [call site] 00011


                 k.replace

[function] [call site] 00012


                 future.backports.email.message._formatparam

[function] [call site] 00013


                   
                    .len

[function] [call site] 00014


                   
                    .isinstance

[function] [call site] 00015


                   value.encode

[function] [call site] 00016


                   tspecials.search

[function] [call site] 00017


                 parts.append

[function] [call site] 00018


                 parts.insert

[function] [call site] 00019


                 SEMISPACE.join

[function] [call site] 00020


             future.backports.email.message.Message.attach

[function] [call site] 00021


             future.backports.email.message.Message.set_boundary

[function] [call site] 00022


               
                .object

[function] [call site] 00023


               future.backports.email.message.Message._get_params_preserve

[function] [call site] 00024


                 
                  .object

[function] [call site] 00025


                 future.backports.email.message.Message.get

[function] [call site] 00026


                   name.lower

[function] [call site] 00027


                   k.lower

[function] [call site] 00028


                   future.backports.email._policybase.Compat32.header_fetch_parse

[function] [call site] 00029


                     future.backports.email._policybase.Compat32._sanitize_header

[function] [call site] 00030


                       
                        .isinstance

[function] [call site] 00031


                       future.backports.email.header.Header.__init__

[function] [call site] 00032


                         
                          .isinstance

[function] [call site] 00033


                         future.backports.email.charset.Charset.__init__

[function] [call site] 00034


                           
                            .isinstance

[function] [call site] 00035


                           input_charset.encode

[function] [call site] 00036


                           builtins.str

[function] [call site] 00037


                           input_charset.lower

[function] [call site] 00038


                           ALIASES.get

[function] [call site] 00039


                           CHARSETS.get

[function] [call site] 00040


                           ALIASES.get

[function] [call site] 00041


                           CODEC_MAP.get

[function] [call site] 00042


                           CODEC_MAP.get

[function] [call site] 00043


                         future.backports.email.header.Header.append

[function] [call site] 00044


                           
                            .isinstance

[function] [call site] 00045


                           future.backports.email.charset.Charset.__init__

[function] [call site] 00046


                           
                            .isinstance

[function] [call site] 00047


                           s.decode

[function] [call site] 00048


                           s.decode

[function] [call site] 00049


                           s.encode

[function] [call site] 00050


                         
                          .len

[function] [call site] 00051


                 future.backports.email.message._parseparam

[function] [call site] 00052


                   builtins.str

[function] [call site] 00053


                   s.find

[function] [call site] 00054


                   s.count

[function] [call site] 00055


                   s.count

[function] [call site] 00056


                   s.find

[function] [call site] 00057


                   
                    .len

[function] [call site] 00058


                   f.index

[function] [call site] 00059


                   f.strip

[function] [call site] 00060


                   plist.append

[function] [call site] 00061


                 p.split

[function] [call site] 00062


                 name.strip

[function] [call site] 00063


                 val.strip

[function] [call site] 00064


                 p.strip

[function] [call site] 00065


                 params.append

[function] [call site] 00066


               builtins.list

[function] [call site] 00067


               pk.lower

[function] [call site] 00068


               newparams.append

[function] [call site] 00069


               newparams.append

[function] [call site] 00070


               newparams.append

[function] [call site] 00071


               builtins.list

[function] [call site] 00072


               h.lower

[function] [call site] 00073


               builtins.list

[function] [call site] 00074


               parts.append

[function] [call site] 00075


               parts.append

[function] [call site] 00076


               SEMISPACE.join

[function] [call site] 00077


               future.backports.email._policybase.Compat32.header_store_parse

[function] [call site] 00078


               newheaders.append

[function] [call site] 00079


               newheaders.append

[function] [call site] 00080


           fdp.ConsumeIntInRange

[function] [call site] 00081


           fdp.ConsumeUnicodeNoSurrogates

[function] [call site] 00082


           future.backports.email.mime.text.MIMEText.__init__

[function] [call site] 00083


             _text.encode

[function] [call site] 00084


             future.backports.email.mime.base.MIMEBase.__init__

[function] [call site] 00085


             future.backports.email.message.Message.set_payload

[function] [call site] 00086


               future.backports.email.message.Message.set_charset

[function] [call site] 00087


                 future.backports.email.message.Message.del_param

[function] [call site] 00088


                   future.backports.email.message.Message.get_params

[function] [call site] 00089


                     
                      .object

[function] [call site] 00090


                     future.backports.email.message.Message._get_params_preserve

[function] [call site] 00091


                     future.backports.email.message._unquotevalue

[function] [call site] 00092


                       
                        .isinstance

[function] [call site] 00093


                   p.lower

[function] [call site] 00094


                   param.lower

[function] [call site] 00095


                   future.backports.email.message._formatparam

[function] [call site] 00096


                   SEMISPACE.join

[function] [call site] 00097


                   future.backports.email.message.Message.get

[function] [call site] 00098


                 
                  .isinstance

[function] [call site] 00099


                 future.backports.email.charset.Charset.__init__

[function] [call site] 00100


                 future.backports.email.message.Message.add_header

[function] [call site] 00101


                 future.backports.email.message.Message.add_header

[function] [call site] 00102


                 charset.get_output_charset

[function] [call site] 00103


                 charset.get_output_charset

[function] [call site] 00104


                 future.backports.email.message.Message.set_param

[function] [call site] 00105


                   
                    .isinstance

[function] [call site] 00106


                   header.lower

[function] [call site] 00107


                   future.backports.email.message.Message.get

[function] [call site] 00108


                   future.backports.email.message.Message.get_param

[function] [call site] 00109


                     future.backports.email.message.Message._get_params_preserve

[function] [call site] 00110


                     k.lower

[function] [call site] 00111


                     param.lower

[function] [call site] 00112


                     future.backports.email.message._unquotevalue

[function] [call site] 00113


                   future.backports.email.message._formatparam

[function] [call site] 00114


                   SEMISPACE.join

[function] [call site] 00115


                   future.backports.email.message.Message.get_params

[function] [call site] 00116


                   old_param.lower

[function] [call site] 00117


                   param.lower

[function] [call site] 00118


                   future.backports.email.message._formatparam

[function] [call site] 00119


                   future.backports.email.message._formatparam

[function] [call site] 00120


                   SEMISPACE.join

[function] [call site] 00121


                   future.backports.email.message.Message.get

[function] [call site] 00122


                 charset.get_output_charset

[function] [call site] 00123


                 charset.body_encode

[function] [call site] 00124


                 charset.get_body_encoding

[function] [call site] 00125


                 charset.body_encode

[function] [call site] 00126


                 future.backports.email.message.Message.add_header

[function] [call site] 00127