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Run-time validation of INT settings.

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Check against min/max/step parameters

Many places this value is used as an index into an array; this will
help prevent array overflows and undefined/undesireable behavior.

Some fields accept arbitary values, continue to accept those.

Change-Id: Idbb5a17b7ceae5500660987703e2d6c16e920c92
This commit is contained in:
Solomon Peachy 2020-04-18 10:23:26 -04:00
parent 5c30d57ad1
commit bf546fbfcb
1 changed files with 7 additions and 1 deletions
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8
apps/settings.c
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@ -311,7 +311,13 @@ bool settings_load_config(const char* file, bool apply)
#endif
if (settings[i].cfg_vals == NULL)
{
*(int*)settings[i].setting = atoi(value);
if (settings[i].flags&F_ALLOW_ARBITRARY_VALS ||
(temp >= settings[i].int_setting->min &&
temp <= settings[i].int_setting->max &&
temp % settings[i].int_setting->step == 0))
{
*(int*)settings[i].setting = atoi(value);
}
}
else
{