Add ICC fuzzer

fuzz/fuzz.cpp

Index: fuzz/fuzz.cpp
diff --git a/fuzz/fuzz.cpp b/fuzz/fuzz.cpp
index 326b942bbe718759b2f65b817302d96984acf40e..853b5e04117b4732af8adaa80b2974221d7ed70b 100644
--- a/fuzz/fuzz.cpp
+++ b/fuzz/fuzz.cpp
@@ -23,7 +23,7 @@
 DEFINE_string2(bytes, b, "", "A path to a file.  This can be the fuzz bytes or a binary to parse.");
 DEFINE_string2(name, n, "", "If --type is 'api', fuzz the API with this name.");
 
-DEFINE_string2(type, t, "api", "How to interpret --bytes, either 'image_scale', 'image_mode', 'skp', or 'api'.");
+DEFINE_string2(type, t, "api", "How to interpret --bytes, either 'image_scale', 'image_mode', 'skp', 'icc', or 'api'.");
 DEFINE_string2(dump, d, "", "If not empty, dump 'image*' or 'skp' types as a PNG with this name.");
 
 static int printUsage(const char* name) {
@@ -35,6 +35,7 @@ static uint8_t calculate_option(SkData*);
 static int fuzz_api(SkData*);
 static int fuzz_img(SkData*, uint8_t, uint8_t);
 static int fuzz_skp(SkData*);
+static int fuzz_icc(SkData*);
 
 int main(int argc, char** argv) {
     SkCommandLineFlags::Parse(argc, argv);
@@ -53,6 +54,9 @@ int main(int argc, char** argv) {
             case 'a': return fuzz_api(bytes);
 
             case 'i':
+                if (FLAGS_type[0][1] == 'c') { //icc
+                    return fuzz_icc(bytes);
+                }
                 // We only allow one degree of freedom to avoid a search space explosion for afl-fuzz.
                 if (FLAGS_type[0][6] == 's') { // image_scale
                     return fuzz_img(bytes, option, 0);
@@ -372,6 +376,16 @@ int fuzz_skp(SkData* bytes) {
     return 0;
 }
 
+int fuzz_icc(SkData* bytes) {
+    sk_sp<SkColorSpace> space(SkColorSpace::NewICC(bytes->data(), bytes->size()));
+    if (!space) {
+        SkDebugf("[terminated] Couldn't decode ICC.\n");
+        return 1;
+    }
+    SkDebugf("[terminated] Success! Decoded ICC.\n");
+    return 0;
+}
+
 Fuzz::Fuzz(SkData* bytes) : fBytes(SkSafeRef(bytes)), fNextByte(0) {}
 
 void Fuzz::signalBug   () { SkDebugf("Signal bug\n"); raise(SIGSEGV); }