def _do_argtrack(self, line):
#FIXME: this is currently broken and needs to be revamped to use
# apiCall and VivTaints
"""
Track input arguments to the given function by name or address.
(this is currently broken. sorry!)
Usage: argtrack <func_addr_expr> <arg_idx>
"""
if not line:
return self.do_help("argtrack")
argv = e_cli.splitargs(line)
if len(argv) != 2:
return self.do_help("argtrack")
try:
fva = self.parseExpression(argv[0])
except Exception:
self.vprint("Invalid Address Expression: %s" % argv[0])
return
try:
idx = self.parseExpression(argv[1])
except Exception:
self.vprint("Invalid Index Expression: %s" % argv[1])
return
if self.getFunction(fva) != fva:
self.vprint("Invalid Function Address: (0x%.8x) %s" % (fva, line))
for pleaf in viv_vector.trackArgOrigin(self, fva, idx):
self.vprint('=' * 80)
path = vg_path.getPathToNode(pleaf)
path.reverse()
for pnode in path:
fva = vg_path.getNodeProp(pnode, 'fva')
argv = vg_path.getNodeProp(pnode, 'argv')
callva = vg_path.getNodeProp(pnode, 'cva')
argidx = vg_path.getNodeProp(pnode, 'argidx')
if callva is not None:
aval, amagic = argv[argidx]
arepr = '0x%.8x' % aval
if amagic is not None:
arepr = repr(amagic)
frepr = 'UNKNOWN'
if fva is not None:
frepr = '0x%.8x' % fva
self.vprint('func: %s calls at: 0x%.8x with his own: %s' %
(frepr, callva, arepr))
self.vprint("=" * 80)
def do_argtrack(self, line):
"""
Track input arguments to the given function by name or address.
Usage: argtrack <func_addr_expr> <arg_idx>
"""
if not line:
return self.do_help("argtrack")
argv = e_cli.splitargs(line)
if len(argv) != 2:
return self.do_help("argtrack")
try:
fva = self.parseExpression(argv[0])
except Exception as e:
self.vprint("Invalid Address Expression: %s" % argv[0])
return
try:
idx = self.parseExpression(argv[1])
except Exception as e:
self.vprint("Invalid Index Expression: %s" % argv[1])
return
if self.getFunction(fva) != fva:
self.vprint("Invalid Function Address: (0x%.8x) %s" % (fva, line))
for pleaf in viv_vector.trackArgOrigin(self, fva, idx):
self.vprint('='*80)
path = vg_path.getPathToNode(pleaf)
path.reverse()
for pnode in path:
fva = vg_path.getNodeProp(pnode, 'fva')
argv = vg_path.getNodeProp(pnode, 'argv')
callva = vg_path.getNodeProp(pnode, 'cva')
argidx = vg_path.getNodeProp(pnode, 'argidx')
if callva != None:
aval, amagic = argv[argidx]
arepr = '0x%.8x' % aval
if amagic != None:
arepr = repr(amagic)
frepr = 'UNKNOWN'
if fva != None:
frepr = '0x%.8x' % fva
self.vprint('func: %s calls at: 0x%.8x with his own: %s' % (frepr, callva, arepr))
self.vprint("="*80)
try:
fva = self.parseExpression(argv[0])
except Exception, e:
self.vprint("Invalid Address Expression: %s" % argv[0])
return
try:
idx = self.parseExpression(argv[1])
except Exception, e:
self.vprint("Invalid Index Expression: %s" % argv[1])
return
if self.getFunction(fva) != fva:
self.vprint("Invalid Function Address: (0x%.8x) %s" % (fva, line))
for pleaf in viv_vector.trackArgOrigin(self, fva, idx):
self.vprint('='*80)
path = vg_path.getPathToNode(pleaf)
path.reverse()
for pnode in path:
fva = vg_path.getNodeProp(pnode, 'fva')
argv = vg_path.getNodeProp(pnode, 'argv')
callva = vg_path.getNodeProp(pnode, 'cva')
argidx = vg_path.getNodeProp(pnode, 'argidx')
if callva != None:
aval, amagic = argv[argidx]
arepr = '0x%.8x' % aval
if amagic != None: