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… check for a 'scanf'-like function Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>
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Potential fix for https://github.com/echoix/grass/security/code-scanning/239
The correct fix is to validate
sscanfreturn values against the exact expected number of matched items, not just truthiness.In
raster/r.to.rast3elev/main.c, update both numeric parsing checks:if (sscanf(param.upper->answer, "%lf", &db.upper))if (sscanf(param.lower->answer, "%lf", &db.lower))Change each condition to
== 1, since each call expects exactly one%lfconversion. This preserves existing behavior for valid input while correctly rejecting parse failures and any non-success return values (includingEOF).No new methods, imports, or dependencies are needed.
Suggested fixes powered by Copilot Autofix. Review carefully before merging.