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handle garbage values/invalid input ClassicCheckPointAgent

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This commit is contained in:
Scott Fennell 2018-10-03 10:34:11 -05:00
parent ba0c310e64
commit d1957c650b
1 changed files with 6 additions and 1 deletions
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7
trick_source/sim_services/CheckPointAgent/ClassicCheckPointerAgent.cpp
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@ -259,6 +259,10 @@ static char *getCompositeSubReference(
// Calculate the array indices for the right-side. // Calculate the array indices for the right-side.
for (j = num_fixed_dims - 1; j >= 0; j--) { for (j = num_fixed_dims - 1; j >= 0; j--) {
size *= A[i].index[j].size; size *= A[i].index[j].size;
if(!size) {
std::cerr "Checkpoint Agent " << __FUNCTION__ << " ERROR: divide by zero during array indices calculation" << std::endl;
return NULL;
}
my_index[j] = (int) ((offset % size) / last_size); my_index[j] = (int) ((offset % size) / last_size);
offset -= last_size * my_index[j]; offset -= last_size * my_index[j];
last_size = size; last_size = size;
@ -613,8 +617,9 @@ void Trick::ClassicCheckPointAgent::write_singleton( std::ostream& chkpnt_os, vo
src_addr = (char*)address + offset * sizeof(short); src_addr = (char*)address + offset * sizeof(short);
value = *(short*)src_addr; value = *(short*)src_addr;
} else { } else {
std::cerr << __FUNCTION__ << " enumeration size error." << std::endl; std::cerr << __FUNCTION__ << ": enumeration size error." << std::endl;
std::cerr.flush(); std::cerr.flush();
value = -1;
} }
enum_attr = (ENUM_ATTR*)attr->attr; enum_attr = (ENUM_ATTR*)attr->attr;