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

outgoing: pay attention to `default:pushurl` for bookmarks and subrepos...

outgoing: pay attention to `default:pushurl` for bookmarks and subrepos The problem here was that `default:pushurl` and `default` get translated to a single entry in `ui.paths` named 'default', with an attribute for 'pushloc', 'loc', and 'rawloc'. ui.expandpath() then always takes the `rawloc` attribute. Maybe the ui.expandpath() API is busted and should be removed? Or maybe getpath() should return a copy that adds an attribute reflecting the URL of the path chosen? I thought that I could remove the code in hg._outgoing() and pass the location resolved in commands.py as `dest`, but unfortunately that code is needed there to resolve #branch type URLs. Maybe that should be pulled up to commands.py, because I can't see any reasonable behavior for a subrepo path that's constructed out of that type of URL. The push command already resolves this early, so that works properly. But it looks like bundle, histedit, largefiles, patchbomb, and summary use a similar pattern, so they are likely similarly affected.

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      /*

       * 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>

      extern "C" {

      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)

      {

      	if (!Size) {

      		return 0;

      	}

      	// figure out a random point in [0, Size] to split our input.

      	size_t split = Data[0] / 255.0 * Size;

      	mmfile_t a, b;

      	// `a` input to diff is data[1:split]

      	a.ptr = (char *)Data + 1;

      	// which has len split-1

      	a.size = split - 1;

      	// `b` starts at the next byte after `a` ends

      	b.ptr = a.ptr + a.size;

      	b.size = Size - split;

      	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.

      }

      #ifdef HG_FUZZER_INCLUDE_MAIN

      int main(int argc, char **argv)

      {

      	const char data[] = "asdf";

      	return LLVMFuzzerTestOneInput((const uint8_t *)data, 4);

      }

      #endif

      } // extern "C"

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				/*
				* 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>

				extern "C" {

				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)
				{
				if (!Size) {
				return 0;
				}
				// figure out a random point in [0, Size] to split our input.
				size_t split = Data[0] / 255.0 * Size;

				mmfile_t a, b;

				// `a` input to diff is data[1:split]
				a.ptr = (char *)Data + 1;
				// which has len split-1
				a.size = split - 1;
				// `b` starts at the next byte after `a` ends
				b.ptr = a.ptr + a.size;
				b.size = Size - split;
				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.
				}

				#ifdef HG_FUZZER_INCLUDE_MAIN
				int main(int argc, char **argv)
				{
				const char data[] = "asdf";
				return LLVMFuzzerTestOneInput((const uint8_t *)data, 4);
				}
				#endif

				} // extern "C"