ghostscript: add three new devices fuzzers (#7981)

* ghostscript: add three new devices fuzzers

* nits

* simplify build

4 files changed, 71 insertions, 3 deletions

diff --git a/projects/ghostscript/build.sh b/projects/ghostscript/build.sh
index 29261339..18325d8e 100755
--- a/projects/ghostscript/build.sh
+++ b/projects/ghostscript/build.sh
@@ -31,7 +31,6 @@ popd
 
 rm -rf cups/libs || die
 rm -rf freetype || die
-rm -rf libpng || die
 rm -rf zlib || die
 
 mv $SRC/freetype freetype
@@ -46,11 +45,20 @@ CPPFLAGS="${CPPFLAGS:-} $CUPS_CFLAGS -DPACIFY_VALGRIND" ./autogen.sh \
   CUPSCONFIG=$CUPSCONFIG \
   --enable-freetype --enable-fontconfig \
   --enable-cups --with-ijs --with-jbig2dec \
-  --with-drivers=pdfwrite,cups,ljet4,laserjet,pxlmono,pxlcolor,pcl3,uniprint
+  --with-drivers=pdfwrite,cups,ljet4,laserjet,pxlmono,pxlcolor,pcl3,uniprint,pgmraw,ps2write,png16m
 make -j$(nproc) libgs
 
+fuzzers="gstoraster_fuzzer            \
+         gstoraster_fuzzer_all_colors \
+         gstoraster_ps_fuzzer         \
+         gstoraster_pdf_fuzzer        \
+         gs_device_pdfwrite_fuzzer    \
+         gs_device_pxlmono_fuzzer     \
+         gs_device_pgmraw_fuzzer      \
+         gs_device_ps2write_fuzzer    \
+         gs_device_png16m_fuzzer"
 
-for fuzzer in gstoraster_pdf_fuzzer gstoraster_fuzzer gstoraster_fuzzer_all_colors gstoraster_ps_fuzzer gs_device_pdfwrite_fuzzer gs_device_pxlmono_fuzzer; do
+for fuzzer in $fuzzers; do
   $CXX $CXXFLAGS $CUPS_LDFLAGS -std=c++11 -I. -I$SRC \
     $SRC/${fuzzer}.cc \
     -o "$OUT/${fuzzer}" \
diff --git a/projects/ghostscript/gs_device_pgmraw_fuzzer.cc b/projects/ghostscript/gs_device_pgmraw_fuzzer.cc
new file mode 100644
index 00000000..30e51c5b
--- /dev/null
+++ b/projects/ghostscript/gs_device_pgmraw_fuzzer.cc
@@ -0,0 +1,20 @@
+/* Copyright 2022 Google LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#include "gs_fuzzlib.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+	fuzz_gs_device(data, size, 1, "pgmraw");
+	return 0;
+}
diff --git a/projects/ghostscript/gs_device_png16m_fuzzer.cc b/projects/ghostscript/gs_device_png16m_fuzzer.cc
new file mode 100644
index 00000000..0d522ce3
--- /dev/null
+++ b/projects/ghostscript/gs_device_png16m_fuzzer.cc
@@ -0,0 +1,20 @@
+/* Copyright 2022 Google LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#include "gs_fuzzlib.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+	fuzz_gs_device(data, size, 1, "png16m");
+	return 0;
+}
diff --git a/projects/ghostscript/gs_device_ps2write_fuzzer.cc b/projects/ghostscript/gs_device_ps2write_fuzzer.cc
new file mode 100644
index 00000000..d551e2d3
--- /dev/null
+++ b/projects/ghostscript/gs_device_ps2write_fuzzer.cc
@@ -0,0 +1,20 @@
+/* Copyright 2022 Google LLC
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+#include "gs_fuzzlib.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+	fuzz_gs_device(data, size, 1, "ps2write");
+	return 0;
+}