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Codechange: Validate custom station platform layout tiles are permitted values only.

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(cherry picked from commit 756034fa27)
This commit is contained in:
Peter Nelson
2021-05-02 10:47:05 +01:00
committed by Jonathan G Rennison
parent da571d6481
commit 01d40812fa
1 changed files with 8 additions and 0 deletions
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8
src/newgrf.cpp
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@@ -2026,6 +2026,14 @@ static ChangeInfoResult StationChangeInfo(uint stid, int numinfo, int prop, cons
const byte *layout = buf->ReadBytes(length * number);
statspec->layouts[length - 1][number - 1].assign(layout, layout + length * number);
/* Validate tile values are only the permitted 00, 02, 04 and 06. */
for (auto &tile : statspec->layouts[length - 1][number - 1]) {
if ((tile & 6) != tile) {
grfmsg(1, "StationChangeInfo: Invalid tile %u in layout %ux%u", tile, length, number);
tile &= 6;
}
}
}
break;