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use sizeof(buffer) instead of MAX

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Chris Guzak 2018-03-13 15:28:26 -07:00 committed by GitHub
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@ -1584,7 +1584,7 @@ Consider a famous security bug:
{
char buffer[MAX];
// ...
memset(buffer, 0, MAX);
memset(buffer, 0, sizeof(buffer));
}
There was no postcondition stating that the buffer should be cleared and the optimizer eliminated the apparently redundant `memset()` call:
@ -1593,7 +1593,7 @@ There was no postcondition stating that the buffer should be cleared and the opt
{
char buffer[MAX];
// ...
memset(buffer, 0, MAX);
memset(buffer, 0, sizeof(buffer));
Ensures(buffer[0] == 0);
}