vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
//===-- yaml-parser-fuzzer.cpp - Fuzzer for YAML parser -------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/YAMLParser.h"
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using namespace llvm;
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static bool isValidYaml(const uint8_t *Data, size_t Size) {
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SourceMgr SM;
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yaml::Stream Stream(StringRef(reinterpret_cast<const char *>(Data), Size),
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SM);
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return Stream.validate();
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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std::vector<uint8_t> Input(Data, Data + Size);
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// Ensure we don't crash on any arbitrary byte string.
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isValidYaml(Input.data(), Input.size());
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// Ensure we don't crash on byte strings with no null characters.
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llvm::erase(Input, 0);
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Input.shrink_to_fit();
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bool IsValidWithout0s = isValidYaml(Input.data(), Input.size());
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// Ensure we don't crash on byte strings where the only null character is
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// one-past-the-end of the actual input to the parser.
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Input.push_back(0);
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Input.shrink_to_fit();
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bool IsValidWhen0Terminated = isValidYaml(Input.data(), Input.size() - 1);
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// Ensure we don't crash on byte strings with no null characters, but with
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// an invalid character one-past-the-end of the actual input to the parser.
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Input.back() = 1;
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bool IsValidWhen1Terminated = isValidYaml(Input.data(), Input.size() - 1);
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// The parser should either accept all of these inputs, or reject all of
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// them, because the parser sees an identical byte string in each case. This
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// should hopefully catch some cases where the parser is sensitive to what is
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// present one-past-the-end of the actual input.
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if (IsValidWithout0s != IsValidWhen0Terminated ||
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IsValidWhen0Terminated != IsValidWhen1Terminated)
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LLVM_BUILTIN_TRAP;
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return 0;
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}
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