107 lines
2.9 KiB
Diff
107 lines
2.9 KiB
Diff
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
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index 14506516..2e236476 100644
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--- a/tests/CMakeLists.txt
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+++ b/tests/CMakeLists.txt
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@@ -11,4 +11,5 @@
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add_subdirectory(unit)
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add_subdirectory(xmltester)
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add_subdirectory(bigtest)
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+add_subdirectory(fuzz)
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diff --git a/tests/fuzz/CMakeLists.txt b/tests/fuzz/CMakeLists.txt
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new file mode 100644
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index 00000000..d0bd7a02
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--- /dev/null
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+++ b/tests/fuzz/CMakeLists.txt
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@@ -0,0 +1,15 @@
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+################################################################################
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+# Part of CMake configuration for GEOS
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+#
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+# Copyright (C) 2018 Mateusz Loskot <mateusz@loskot.net>
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+#
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+# This is free software; you can redistribute and/or modify it under
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+# the terms of the GNU Lesser General Public Licence as published
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+# by the Free Software Foundation.
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+# See the COPYING file for more information.
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+################################################################################
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+if(DEFINED ENV{LIB_FUZZING_ENGINE})
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+ add_executable(fuzz_geo2 fuzz_geo2.c)
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+ target_include_directories(fuzz_geo2 PUBLIC $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/include>)
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+ target_link_libraries(fuzz_geo2 geos_c $ENV{LIB_FUZZING_ENGINE})
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+endif()
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diff --git a/tests/fuzz/fuzz_geo2.c b/tests/fuzz/fuzz_geo2.c
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new file mode 100644
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index 00000000..ceee7ea6
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--- /dev/null
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+++ b/tests/fuzz/fuzz_geo2.c
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@@ -0,0 +1,69 @@
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+#include <stdio.h>
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+#include <stdlib.h>
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+#include <stdint.h>
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+#include <stdarg.h>
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+#include <string.h>
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+
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+#include "geos_c.h"
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+
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+static int initialized = 0;
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+FILE * flogOut;
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+
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+void
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+notice(const char *fmt, ...) {
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+ va_list ap;
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+ fprintf( flogOut, "NOTICE: ");
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+ va_start (ap, fmt);
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+ vfprintf( flogOut, fmt, ap);
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+ va_end(ap);
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+ fprintf( flogOut, "\n" );
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+}
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+
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+void
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+log_and_exit(const char *fmt, ...) {
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+ va_list ap;
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+ fprintf( flogOut, "ERROR: ");
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+ va_start (ap, fmt);
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+ vfprintf( flogOut, fmt, ap);
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+ va_end(ap);
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+ fprintf( flogOut, "\n" );
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+}
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+
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+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
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+ if (initialized == 0) {
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+ flogOut = fopen("/dev/null", "wb");
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+ initGEOS(notice, log_and_exit);
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+ initialized = 1;
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+ }
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+ size_t sep;
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+ for (sep = 0; sep < Size; sep ++) {
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+ if (Data[sep] == 0) {
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+ break;
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+ }
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+ }
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+ if (sep == Size) {
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+ return 0;
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+ }
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+ GEOSGeometry *g1 = GEOSGeomFromWKT(Data);
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+
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+ if (g1 != NULL) {
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+ GEOSGeometry *g2 = GEOSGeomFromWKB_buf(Data+sep, Size-sep);
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+ if (g2 != NULL) {
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+ size_t usize;
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+ GEOSGeometry *g3 = GEOSIntersection(g1, g2);
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+ GEOSGeom_destroy(g3);
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+ g3 = GEOSDifference(g1, g2);
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+ GEOSGeom_destroy(g3);
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+ g3 = GEOSUnion(g1, g2);
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+ GEOSGeom_destroy(g3);
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+ unsigned char* uptr = GEOSGeomToWKB_buf(g1, &usize);
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+ free(uptr);
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+ GEOSGeom_destroy(g2);
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+ }
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+ char * r = GEOSGeomToWKT(g1);
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+ free(r);
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+ GEOSGeom_destroy(g1);
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+ }
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+ return 0;
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+}
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+
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