Mercurial > hg
annotate contrib/fuzz/fm1readmarkers.cc @ 50413:c101e7757ed7
rust-revlog: fix lifetime problem for RevlogEntry parent entries accessors
Without this, the lifetime of the result is equated to the lifetime of the
`self` reference, preventing callers, e.g., to take a `RevlogEntry` and
return its `p1_entry()`, as it looks like returning something that does not
outlive the *reference to* the `RevlogEntry`.
author | Georges Racinet <georges.racinet@octobus.net> |
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date | Thu, 30 Mar 2023 12:20:53 +0200 |
parents | 8766728dbce6 |
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1 #include <Python.h> |
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2 #include <assert.h> |
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3 #include <stdlib.h> |
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4 #include <unistd.h> |
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5 |
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6 #include <string> |
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7 |
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8 #include "pyutil.h" |
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9 |
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10 extern "C" { |
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11 |
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12 static PYCODETYPE *code; |
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13 |
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14 extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) |
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15 { |
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16 contrib::initpy(*argv[0]); |
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17 code = (PYCODETYPE *)Py_CompileString(R"py( |
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18 def maybeint(s, default): |
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19 try: |
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20 return int(s) |
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21 except ValueError: |
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22 return default |
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23 try: |
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24 parts = data.split('\0', 2) |
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25 if len(parts) == 3: |
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26 offset, stop, data = parts |
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27 elif len(parts) == 2: |
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28 stop, data = parts |
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29 offset = 0 |
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30 else: |
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31 offset = stop = 0 |
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32 offset, stop = maybeint(offset, 0), maybeint(stop, len(data)) |
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33 parsers.fm1readmarkers(data, offset, stop) |
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34 except Exception as e: |
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35 pass |
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36 # uncomment this print if you're editing this Python code |
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37 # to debug failures. |
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38 # print e |
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39 )py", |
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40 "fuzzer", Py_file_input); |
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41 return 0; |
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42 } |
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43 |
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44 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) |
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45 { |
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46 PyObject *text = |
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47 PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size); |
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48 PyObject *locals = PyDict_New(); |
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49 PyDict_SetItemString(locals, "data", text); |
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50 PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals); |
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51 if (!res) { |
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52 PyErr_Print(); |
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53 } |
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54 Py_XDECREF(res); |
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55 Py_DECREF(locals); |
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56 Py_DECREF(text); |
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57 return 0; // Non-zero return values are reserved for future use. |
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58 } |
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59 } |