upstream/mercurial-mirror Files · contrib/fuzz/xdiff.cc

compat: initialize LC_CTYPE locale on all Python versions and platforms...

compat: initialize LC_CTYPE locale on all Python versions and platforms Previously, the LC_CTYPE locale was not initialized according to user settings on all Python versions (e.g. never on Python 2) and platforms (e.g. not on some Python < 3.8 on Windows). This broke e.g. non-ASCII filenames passed to the Subversion bindings on Python 2, resulting in error messages like "file:///tmp/a%C3%A4 does not look like a Subversion repository to libsvn version 1.14.0". The following command could be used to test this functionality. Adding it to the test suite would be pointless, as the locale is always set to "C" during test runs. @command(b'check_initial_codeset', norepo=True) def check_initial_codeset(ui): codeset1 = locale.nl_langinfo(locale.CODESET) locale.setlocale(locale.LC_ALL, '') codeset2 = locale.nl_langinfo(locale.CODESET) assert codeset1 == codeset2

Augie Fackler - - Load All Authors

File last commit:

r44255:7857bd9b default


                r45538:a25343d1

default

Download file

             xdiff.cc
        
                    58 lines
            
             | 1.4 KiB
            
                | text/x-c
            
             |
                CppLexer
            
             / contrib / fuzz / xdiff.cc
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      /*

       * xdiff.cc - fuzzer harness for thirdparty/xdiff

       *

       * Copyright 2018, Google Inc.

       *

       * This software may be used and distributed according to the terms of

       * the GNU General Public License, incorporated herein by reference.

       */

      #include "thirdparty/xdiff/xdiff.h"

      #include <inttypes.h>

      #include <stdlib.h>

      #include "FuzzedDataProvider.h"

      extern "C" {

      int LLVMFuzzerInitialize(int *argc, char ***argv)

      {

      	return 0;

      }

      int hunk_consumer(long a1, long a2, long b1, long b2, void *priv)

      {

      	// TODO: probably also test returning -1 from this when things break?

      	return 0;

      }

      int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)

      {

      	// Don't allow fuzzer inputs larger than 100k, since we'll just bog

      	// down and not accomplish much.

      	if (Size > 100000) {

      		return 0;

      	}

      	FuzzedDataProvider provider(Data, Size);

      	std::string left = provider.ConsumeRandomLengthString(Size);

      	std::string right = provider.ConsumeRemainingBytesAsString();

      	mmfile_t a, b;

      	a.ptr = (char *)left.c_str();

      	a.size = left.size();

      	b.ptr = (char *)right.c_str();

      	b.size = right.size();

      	xpparam_t xpp = {

      	    XDF_INDENT_HEURISTIC, /* flags */

      	};

      	xdemitconf_t xecfg = {

      	    XDL_EMIT_BDIFFHUNK, /* flags */

      	    hunk_consumer,      /* hunk_consume_func */

      	};

      	xdemitcb_t ecb = {

      	    NULL, /* priv */

      	};

      	xdl_diff(&a, &b, &xpp, &xecfg, &ecb);

      	return 0; // Non-zero return values are reserved for future use.

      }

      } // extern "C"

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				/*
				* xdiff.cc - fuzzer harness for thirdparty/xdiff
				*
				* Copyright 2018, Google Inc.
				*
				* This software may be used and distributed according to the terms of
				* the GNU General Public License, incorporated herein by reference.
				*/
				#include "thirdparty/xdiff/xdiff.h"
				#include <inttypes.h>
				#include <stdlib.h>

				#include "FuzzedDataProvider.h"

				extern "C" {

				int LLVMFuzzerInitialize(int argc, char **argv)
				{
				return 0;
				}

				int hunk_consumer(long a1, long a2, long b1, long b2, void *priv)
				{
				// TODO: probably also test returning -1 from this when things break?
				return 0;
				}

				int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
				{
				// Don't allow fuzzer inputs larger than 100k, since we'll just bog
				// down and not accomplish much.
				if (Size > 100000) {
				return 0;
				}
				FuzzedDataProvider provider(Data, Size);
				std::string left = provider.ConsumeRandomLengthString(Size);
				std::string right = provider.ConsumeRemainingBytesAsString();
				mmfile_t a, b;

				a.ptr = (char *)left.c_str();
				a.size = left.size();
				b.ptr = (char *)right.c_str();
				b.size = right.size();
				xpparam_t xpp = {
				XDF_INDENT_HEURISTIC, /* flags */
				};
				xdemitconf_t xecfg = {
				XDL_EMIT_BDIFFHUNK, /* flags */
				hunk_consumer, /* hunk_consume_func */
				};
				xdemitcb_t ecb = {
				NULL, /* priv */
				};
				xdl_diff(&a, &b, &xpp, &xecfg, &ecb);
				return 0; // Non-zero return values are reserved for future use.
				}

				} // extern "C"