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author | Guy Harris <guy@alum.mit.edu> | 2002-01-23 23:15:32 +0000 |
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committer | Guy Harris <guy@alum.mit.edu> | 2002-01-23 23:15:32 +0000 |
commit | 910c2ee8308a317adf2af85b34787416c23438c4 (patch) | |
tree | b772a658b0dde044592bcbf58a2ef07c3dd48fd2 /ethereal_gen.py | |
parent | 33a5bc4772a222dc69d2b871e243e4f3ef349ea9 (diff) | |
download | wireshark-910c2ee8308a317adf2af85b34787416c23438c4.tar.gz wireshark-910c2ee8308a317adf2af85b34787416c23438c4.tar.bz2 wireshark-910c2ee8308a317adf2af85b34787416c23438c4.zip |
From Frank Singleton:
- Cleanup of unused code after implementing recursion
- Fix some spelling errors.
svn path=/trunk/; revision=4603
Diffstat (limited to 'ethereal_gen.py')
-rw-r--r-- | ethereal_gen.py | 192 |
1 files changed, 7 insertions, 185 deletions
diff --git a/ethereal_gen.py b/ethereal_gen.py index ef77131c85..3c7e193e7e 100644 --- a/ethereal_gen.py +++ b/ethereal_gen.py @@ -1,6 +1,6 @@ # -*- python -*- # -# $Id: ethereal_gen.py,v 1.21 2002/01/21 21:59:10 guy Exp $ +# $Id: ethereal_gen.py,v 1.22 2002/01/23 23:15:32 guy Exp $ # # ethereal_gen.py (part of idl2eth) # @@ -37,7 +37,7 @@ # # Omniidl Back-end which parses an IDL list of "Operation" nodes # passed from ethereal_be2.py and generates "C" code for compiling -# as a dissector in Ethereal IP protocol anlayser. +# as a plugin for the Ethereal IP Protocol Analyser. # # # Strategy (sneaky but ...) @@ -96,7 +96,7 @@ import tempfile # 14. Dont generate code for empty operations (cf: exceptions without members) # 15. Generate code to display Enums numerically and symbolically [done] # 16. Place structs/unions in subtrees -# 17. Recursive struct and union handling [started - pass struct and union list to ethereal_gen.py ] +# 17. Recursive struct and union handling [done ] # 18. Improve variable naming for display (eg: structs, unions etc) # # Also test, Test, TEST @@ -173,8 +173,6 @@ class ethereal_gen_C: def genCode(self,oplist, atlist, enlist, stlist, unlist): # operation,attribute,enums,struct and union lists - #self.st = self.st_save # test remove later - #self.genDeclares(oplist,atlist,enlist,stlist,unlist) # test remove later self.genHelpers(oplist,stlist,unlist) # sneaky .. call it now, to populate the fn_hash # so when I come to that operation later, I have the variables to @@ -355,7 +353,6 @@ class ethereal_gen_C: self.st.dec_indent() self.st.out(self.template_main_dissector_switch_msgtype_all_other_msgtype) self.st.dec_indent() - #self.st.out(self.template_main_dissector_switch_msgtype_end) self.st.out(self.template_main_dissector_end) @@ -997,8 +994,7 @@ class ethereal_gen_C: #self.get_CDR_enum(pn) elif pt == idltype.tk_struct: - ##self.get_CDR_struct(type,pn) - self.get_CDR_struct2(type,pn) + self.get_CDR_struct(type,pn) elif pt == idltype.tk_TypeCode: # will I ever get here ? self.get_CDR_TypeCode(type,pn) elif pt == idltype.tk_sequence: @@ -1008,7 +1004,7 @@ class ethereal_gen_C: elif pt == idltype.tk_array: self.get_CDR_array(type,pn) elif pt == idltype.tk_union: - self.get_CDR_union2(type,pn) + self.get_CDR_union(type,pn) elif pt == idltype.tk_alias: if self.DEBUG: print "XXXXX Alias type XXXXX " , type @@ -1113,142 +1109,9 @@ class ethereal_gen_C: self.st.out(self.template_get_CDR_sequence_length, seqname=pn) self.addvar(self.c_u_octet4) - def get_CDR_union(self,type,pn): - if self.DEBUG: - print "XXX Union type =" , type, " pn = ",pn - print "XXX Union type.decl()" , type.decl() - print "XXX Union Scoped Name" , type.scopedName() - - # If I am a typedef union {..}; node then find the union node - - if isinstance(type.decl(), idlast.Declarator): - ntype = type.decl().alias().aliasType().decl() - else: - ntype = type.decl() # I am a union node - - if self.DEBUG: - print "XXX Union ntype =" , ntype - - if ntype.recursive(): - sys.stderr.write( "Error: idl2eth does not handle recursive unions yet \n") - sys.exit(1) - - st = ntype.switchType().unalias() # may be typedef switch type, so find real type - - #std = st.decl() - - if self.DEBUG: - print "XXX Union ntype =" , ntype - print "XXX Union ntype.switchType =" , st - #print "XXX Union ntype.switchType().decl() = " , std - #print "XXX Union std.repoId() = ", std.repoId() - - - self.st.out(self.template_comment_union_code_start, uname=ntype.repoId() ) - - self.getCDR3(st,pn); - - # Depending on what kind of discriminant I come accross (enum,integer,char, - # boolean), make sure I cast the return value of the get_XXX accessor - # to an appropriate value. Omniidl idlast.CaseLabel.value() accessor will - # return an integer, or an Enumerator object that is then converted to its - # integer equivalent. - # - # - # NOTE - May be able to skip some of this stuff, but leave it in for now -- FS - # - - if (st.kind() == idltype.tk_enum): - std = st.decl() - self.st.out(self.template_comment_union_code_discriminant, uname=std.repoId() ) - self.st.out(self.template_union_code_save_discriminant_enum, discname=pn ) - self.addvar(self.c_s_disc + pn + ";") - - elif (st.kind() == idltype.tk_long): - self.st.out(self.template_union_code_save_discriminant_long, discname=pn ) - self.addvar(self.c_s_disc + pn + ";") - - elif (st.kind() == idltype.tk_short): - self.st.out(self.template_union_code_save_discriminant_short, discname=pn ) - self.addvar(self.c_s_disc + pn + ";") - - elif (st.kind() == idltype.tk_boolean): - self.st.out(self.template_union_code_save_discriminant_boolean, discname=pn ) - self.addvar(self.c_s_disc + pn + ";") - - elif (st.kind() == idltype.tk_char): - self.st.out(self.template_union_code_save_discriminant_char, discname=pn ) - self.addvar(self.c_s_disc + pn + ";") - - else: - print "XXX Unknown st.kind() = ", st.kind() - - # - # Loop over all cases in this union - # - - for uc in ntype.cases(): # for all UnionCase objects in this union - for cl in uc.labels(): # for all Caselabel objects in this UnionCase - - # get integer value, even if discriminant is - # an Enumerator node - - if isinstance(cl.value(),idlast.Enumerator): - if self.DEBUG: - print "XXX clv.identifier()", cl.value().identifier() - print "XXX clv.repoId()", cl.value().repoId() - print "XXX clv.scopedName()", cl.value().scopedName() - - # find index of enumerator in enum declaration - # eg: RED is index 0 in enum Colors { RED, BLUE, GREEN } - - clv = self.valFromEnum(std,cl.value()) - - else: - clv = cl.value() - - #print "XXX clv = ",clv - - # - # if char, dont convert to int, but put inside single quotes so that it is understood by C. - # eg: if (disc == 'b').. - # - # TODO : handle \xxx chars generically from a function or table lookup rather than - # a whole bunch of "if" statements. -- FS - - - if (st.kind() == idltype.tk_char): - if (clv == '\n'): # newline - string_clv = "'\\n'" - elif (clv == '\t'): # tab - string_clv = "'\\t'" - else: - string_clv = "'" + clv + "'" - else: - string_clv = '%i ' % clv - - # - # If default case, then skp comparison with discriminator - # - - if not cl.default(): - self.st.out(self.template_comment_union_code_label_compare_start, discname=pn,labelval=string_clv ) - self.st.inc_indent() - else: - self.st.out(self.template_comment_union_code_label_default_start ) - - - self.getCDR3(uc.caseType(),uc.declarator().identifier()) - - if not cl.default(): - self.st.dec_indent() - self.st.out(self.template_comment_union_code_label_compare_end ) - else: - self.st.out(self.template_comment_union_code_label_default_end ) - - def get_CDR_union2(self,type,pn): + def get_CDR_union(self,type,pn): if self.DEBUG: print "XXX Union type =" , type, " pn = ",pn print "XXX Union type.decl()" , type.decl() @@ -1272,12 +1135,7 @@ class ethereal_gen_C: self.st.out(self.template_decode_union,name=sname) self.st.out(self.template_union_end, name=sname ) - -## if ntype.recursive(): -## sys.stderr.write( "Error: idl2eth does not handle recursive unions yet \n") -## sys.exit(1) - st = ntype.switchType().unalias() # may be typedef switch type, so find real type # # Code to generate Union Helper functions @@ -1310,8 +1168,6 @@ class ethereal_gen_C: st = un.switchType().unalias() # may be typedef switch type, so find real type - #std = st.decl() - self.st.out(self.template_comment_union_code_start, uname=un.repoId() ) self.getCDR3(st,un.identifier()); @@ -1457,45 +1313,11 @@ class ethereal_gen_C: - def get_CDR_struct(self,type,pn): - self.st.out(self.template_structure_start, name=type.name() ) - - # If I am a typedef struct {..}; node then find the struct node - - if isinstance(type.decl(), idlast.Declarator): - ntype = type.decl().alias().aliasType().decl() - else: - ntype = type.decl() # I am a struct node - - if ntype.recursive(): - sys.stderr.write("Error: idl2eth does not handle recursive structs yet \n") - sys.exit(1) - - for m in ntype.members(): - for decl in m.declarators(): - if decl.sizes(): # an array - indices = self.get_indices_from_sizes(decl.sizes()) - string_indices = '%i ' % indices # convert int to string - self.st.out(self.template_get_CDR_array_comment, aname=decl.identifier(), asize=string_indices) - self.st.out(self.template_get_CDR_array_start, aname=decl.identifier(), aval=string_indices) - self.addvar(self.c_i + decl.identifier() + ";") - - self.st.inc_indent() - self.getCDR3(m.memberType(), type.name() + "_" + decl.identifier() ) - self.st.dec_indent() - self.st.out(self.template_get_CDR_array_end) - - - else: - self.getCDR3(m.memberType(), type.name() + "_" + decl.identifier() ) - - self.st.out(self.template_structure_end, name=type.name()) - # # Handle structs, including recursive # - def get_CDR_struct2(self,type,pn): + def get_CDR_struct(self,type,pn): # If I am a typedef struct {..}; node then find the struct node |