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idautils.py: Return copies of the xref class instances so they are storable

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This commit is contained in:
gergely.erdelyi 2008-06-16 18:47:02 +00:00
parent ee564d8a03
commit 40846fe7c9
1 changed files with 15 additions and 5 deletions
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20
python/idautils.py
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@ -133,6 +133,17 @@ def XrefTypeName(typecode):
return ref_types[typecode] return ref_types[typecode]
def _copy_xref(xref):
""" Make a private copy of the xref class to preserve its contents """
class _xref:
pass
xr = _xref()
for attr in [ 'frm', 'to', 'iscode', 'type', 'user' ]:
setattr(xr, attr, getattr(xref, attr))
return xr
def XrefsFrom(ea, flags=0): def XrefsFrom(ea, flags=0):
""" """
Return all references from address 'ea' Return all references from address 'ea'
@ -144,13 +155,12 @@ def XrefsFrom(ea, flags=0):
for xref in XrefsFrom(here(), 0): for xref in XrefsFrom(here(), 0):
print xref.type, XrefTypeName(xref.type), \ print xref.type, XrefTypeName(xref.type), \
'from', hex(xref.frm), 'to', hex(xref.to) 'from', hex(xref.frm), 'to', hex(xref.to)
""" """
xref = idaapi.xrefblk_t() xref = idaapi.xrefblk_t()
if xref.first_from(ea, flags): if xref.first_from(ea, flags):
yield xref yield _copy_xref(xref)
while xref.next_from(): while xref.next_from():
yield xref yield _copy_xref(xref)
def XrefsTo(ea, flags=0): def XrefsTo(ea, flags=0):
@ -167,9 +177,9 @@ def XrefsTo(ea, flags=0):
""" """
xref = idaapi.xrefblk_t() xref = idaapi.xrefblk_t()
if xref.first_to(ea, flags): if xref.first_to(ea, flags):
yield xref yield _copy_xref(xref)
while xref.next_to(): while xref.next_to():
yield xref yield _copy_xref(xref)
def Heads(start, end): def Heads(start, end):