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prevents an overflowing subtraction when using JLink #119

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prevents an overflowing subtraction when using JLink #119

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4 changes: 3 additions & 1 deletion humility-core/src/core.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -851,7 +851,9 @@ impl GDBCore {
// We are done when we have our closing delimter followed by
// the two byte checksum.
//
if result.find(GDB_PACKET_END) == Some(result.len() - 3) {
if result.len() >= 3
&& result.find(GDB_PACKET_END) == Some(result.len() - 3)
{
break;
}
}
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