Define TOKEN_BUF_SIZE as the size of the buffer used when parsing
tokens. Define TOKEN_BUF_MIN as the minimum size of the token
buffer; the size comes from what's necessary to represent a maximal
64-bit octal value.
Add checks in yylex() to avoid exhausting the token buffer on
pathological input. Use the minimum buffer size to NUL-terminate
the buffer for a message if the token name is too long.
Signed-off-by: Alex Elder <elder@linaro.org>
Message-Id: <20211001232338.769309-28-elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
