add FuzzAttributeUnpacking and its seed corpus

projects/goipp/fuzzer/fuzz_attribute_unpacking.go

@@ -0,0 +1,23 @@
+/*  
+ * Fuzz target for goipp's attribute unpacking functionality.  
+ */  
+package fuzzer  
+
+import (  
+	"strings"  
+	"testing"  
+	"github.com/OpenPrinting/goipp"  
+)  
+
+func FuzzAttributeUnpacking(f *testing.F) {  
+	f.Fuzz(func(t *testing.T, tag goipp.Tag, data []byte) {  
+		attr := goipp.Attribute{Name: "test-attr"}  
+		err := attr.unpack(tag, data)
+		// if unpack returns an error, ensure it mentions the tag in the message  
+		if err != nil {  
+			if !strings.Contains(err.Error(), tag.String()) {  
+				t.Errorf("Error should contain tag information: %v", err)  
+			}  
+		}  
+	})  
+}

projects/goipp/oss_fuzz_build.sh

@@ -6,6 +6,7 @@ cp $SRC/fuzzing/projects/goipp/fuzzer/fuzz_decode_bytes_ex.go $SRC/goipp/fuzzer/
 cp $SRC/fuzzing/projects/goipp/fuzzer/fuzz_round_trip.go $SRC/goipp/fuzzer/
 cp $SRC/fuzzing/projects/goipp/fuzzer/fuzz_collections.go $SRC/goipp/fuzzer/
 cp $SRC/fuzzing/projects/goipp/fuzzer/fuzz_tag_extension.go $SRC/goipp/fuzzer/
+cp $SRC/fuzzing/projects/goipp/fuzzer/fuzz_attribute_unpacking.go $SRC/goipp/fuzzer/  # new fuzz target
 
 # Corpus for fuzzers that accept good AND bad messages
 mkdir -p $WORK/good_and_bad_ipp_messages_seed_corpus
@@ -25,6 +26,11 @@ mkdir -p $WORK/extension_tags_seed_corpus
 cp $SRC/fuzzing/projects/goipp/seeds/extension_tags_seed_corpus/* $WORK/extension_tags_seed_corpus/
 zip -r $OUT/fuzz_tag_extension_seed_corpus.zip extension_tags_seed_corpus/
 
+# Corpus for attribute unpacking seeds
+mkdir -p $WORK/attr_unpack_seed_corpus
+cp $SRC/fuzzing/projects/goipp/seeds/attr_unpack_seed_corpus/* $WORK/attr_unpack_seed_corpus/
+zip -r $OUT/fuzz_attribute_unpacking_seed_corpus.zip attr_unpack_seed_corpus/
+
 # build dependencies and fuzzers
 cd $SRC/goipp
 go mod tidy
@@ -36,3 +42,4 @@ compile_native_go_fuzzer github.com/OpenPrinting/goipp/fuzzer FuzzDecodeBytesEx
 compile_native_go_fuzzer github.com/OpenPrinting/goipp/fuzzer FuzzRoundTrip fuzz_round_trip
 compile_native_go_fuzzer github.com/OpenPrinting/goipp/fuzzer FuzzCollections fuzz_collections
 compile_native_go_fuzzer github.com/OpenPrinting/goipp/fuzzer FuzzTagExtension fuzz_tag_extension
+compile_native_go_fuzzer github.com/OpenPrinting/goipp/fuzzer FuzzAttributeUnpacking fuzz_attribute_unpacking  # new fuzzer

projects/goipp/seeds/attr_unpack_seed_corpus/attr_unpack_boolean_true.seed

@@ -0,0 +1 @@
+"

projects/goipp/seeds/attr_unpack_seed_corpus/attr_unpack_enum_negative.seed

@@ -0,0 +1 @@
+#����

projects/goipp/seeds/attr_unpack_seed_corpus/attr_unpack_string_hello.seed

@@ -0,0 +1 @@
+Bhello

projects/goipp/seeds/attr_unpack_seed_corpus/attr_unpack_void_empty.seed

@@ -0,0 +1 @@
+