core: tokbuf: Fix buffer overflow
Signed-off-by: Chloe M. <chloe@mirocom.org>
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@@ -30,7 +30,7 @@ tokbuf_push(struct tokbuf *tokbuf, struct token *tok)
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return -1;
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return -1;
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}
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}
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if ((tokbuf->head++) >= TOKBUF_CAP) {
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if ((tokbuf->head++) >= TOKBUF_CAP - 1) {
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tokbuf->head = 0;
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tokbuf->head = 0;
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}
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}
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