From d7f299088fd1c10868e2e21313dc023ad769407a Mon Sep 17 00:00:00 2001
From: Marten Seemann <martenseemann@gmail.com>
Date: Sun, 22 Jan 2023 16:36:22 +1300
Subject: [PATCH] switch to Go's native fuzzing

---
 .gitignore                                    |   1 -
 multistream.go                                |   3 +-
 multistream_fuzz.go                           |  28 ------------------
 multistream_test.go                           |  28 ++++++++++++++++++
 ...006d5533770e47f781f838970cf1678c3109f9e3-2 |   1 -
 ...0b2e00d89397c0966a65c9c63871862f5d939ed2-5 | Bin 65 -> 0 bytes
 ...16c7381993e3c7382f77bed399f36ad2d64951f5-4 |   1 -
 ...23833462f55515a900e016db2eb943fb474c19f6-2 |   1 -
 ...29368200289b4418d893fcc1cc269889e0a6bfb0-2 |   1 -
 ...599f2fcab2882f9e2896e49c68a5955e10dc7122-3 |   1 -
 ...7a423337dc2c0923e996c50255f0c4a7702581d3-1 |   1 -
 ...8750ec9ddfe293cd1dc39b4245c21c270f8f52b7-1 |   1 -
 ...8c377ec00ce8265e2fb3689c098e594f9b2a2c9a-2 |   1 -
 ...957666b9194bb12689255437cfc23ddb79b9231a-3 |   1 -
 ...9d8099103966bb2134e94f46e34c312ea366c6b2-1 |   1 -
 ...a2f77d89c69a5551e3ae0f1e9825e45dfb95ee5d-1 | Bin 3 -> 0 bytes
 ...b9ecf4a964523aa3508b6f1a001ef5466c067de6-6 |   1 -
 .../da39a3ee5e6b4b0d3255bfef95601890afd80709  |   0
 18 files changed, 29 insertions(+), 42 deletions(-)
 delete mode 100644 .gitignore
 delete mode 100644 multistream_fuzz.go
 delete mode 100644 workdir/corpus/006d5533770e47f781f838970cf1678c3109f9e3-2
 delete mode 100644 workdir/corpus/0b2e00d89397c0966a65c9c63871862f5d939ed2-5
 delete mode 100644 workdir/corpus/16c7381993e3c7382f77bed399f36ad2d64951f5-4
 delete mode 100644 workdir/corpus/23833462f55515a900e016db2eb943fb474c19f6-2
 delete mode 100644 workdir/corpus/29368200289b4418d893fcc1cc269889e0a6bfb0-2
 delete mode 100644 workdir/corpus/599f2fcab2882f9e2896e49c68a5955e10dc7122-3
 delete mode 100644 workdir/corpus/7a423337dc2c0923e996c50255f0c4a7702581d3-1
 delete mode 100644 workdir/corpus/8750ec9ddfe293cd1dc39b4245c21c270f8f52b7-1
 delete mode 100644 workdir/corpus/8c377ec00ce8265e2fb3689c098e594f9b2a2c9a-2
 delete mode 100644 workdir/corpus/957666b9194bb12689255437cfc23ddb79b9231a-3
 delete mode 100644 workdir/corpus/9d8099103966bb2134e94f46e34c312ea366c6b2-1
 delete mode 100644 workdir/corpus/a2f77d89c69a5551e3ae0f1e9825e45dfb95ee5d-1
 delete mode 100644 workdir/corpus/b9ecf4a964523aa3508b6f1a001ef5466c067de6-6
 delete mode 100644 workdir/corpus/da39a3ee5e6b4b0d3255bfef95601890afd80709

diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index 29585fe..0000000
--- a/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-*-fuzz.zip
diff --git a/multistream.go b/multistream.go
index daca87c..17e1ef7 100644
--- a/multistream.go
+++ b/multistream.go
@@ -7,10 +7,9 @@ import (
 	"bufio"
 	"errors"
 	"fmt"
+	"io"
 	"os"
 	"runtime/debug"
-
-	"io"
 	"sync"
 
 	"github.com/multiformats/go-varint"
diff --git a/multistream_fuzz.go b/multistream_fuzz.go
deleted file mode 100644
index 49eb797..0000000
--- a/multistream_fuzz.go
+++ /dev/null
@@ -1,28 +0,0 @@
-//go:build gofuzz
-
-package multistream
-
-import "bytes"
-
-type rwc struct {
-	*bytes.Reader
-}
-
-func (*rwc) Write(b []byte) (int, error) {
-	return len(b), nil
-}
-
-func (*rwc) Close() error {
-	return nil
-}
-
-func Fuzz(b []byte) int {
-	readStream := bytes.NewReader(b)
-	input := &rwc{readStream}
-
-	mux := NewMultistreamMuxer()
-	mux.AddHandler("/a", nil)
-	mux.AddHandler("/b", nil)
-	_ = mux.Handle(input)
-	return 1
-}
diff --git a/multistream_test.go b/multistream_test.go
index 454e59d..38aa502 100644
--- a/multistream_test.go
+++ b/multistream_test.go
@@ -7,6 +7,7 @@ import (
 	"io"
 	"net"
 	"sort"
+	"strings"
 	"testing"
 	"time"
 )
@@ -956,3 +957,30 @@ func TestSimopenClientClientFail(t *testing.T) {
 	case <-done:
 	}
 }
+
+type rwc struct {
+	*strings.Reader
+}
+
+func (*rwc) Write(b []byte) (int, error) {
+	return len(b), nil
+}
+
+func (*rwc) Close() error {
+	return nil
+}
+
+func FuzzMultistream(f *testing.F) {
+	f.Add("/libp2p/simultaneous-connect")
+	f.Add(ProtocolID)
+
+	f.Fuzz(func(t *testing.T, b string) {
+		readStream := strings.NewReader(b)
+		input := &rwc{readStream}
+
+		mux := NewMultistreamMuxer[string]()
+		mux.AddHandler("/a", nil)
+		mux.AddHandler("/b", nil)
+		_ = mux.Handle(input)
+	})
+}
diff --git a/workdir/corpus/006d5533770e47f781f838970cf1678c3109f9e3-2 b/workdir/corpus/006d5533770e47f781f838970cf1678c3109f9e3-2
deleted file mode 100644
index 498efe3..0000000
--- a/workdir/corpus/006d5533770e47f781f838970cf1678c3109f9e3-2
+++ /dev/null
@@ -1 +0,0 @@
-����
\ No newline at end of file
diff --git a/workdir/corpus/0b2e00d89397c0966a65c9c63871862f5d939ed2-5 b/workdir/corpus/0b2e00d89397c0966a65c9c63871862f5d939ed2-5
deleted file mode 100644
index 5e31674237882101655034e8c48faefc6c1f0dfd..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 65
scmdnL_x=98@AvNCyMO=ty?ft7Iq!iYATFxZ9<Vx)I7s#W8z7ni0JJDGHvj+t

diff --git a/workdir/corpus/16c7381993e3c7382f77bed399f36ad2d64951f5-4 b/workdir/corpus/16c7381993e3c7382f77bed399f36ad2d64951f5-4
deleted file mode 100644
index b957a72..0000000
--- a/workdir/corpus/16c7381993e3c7382f77bed399f36ad2d64951f5-4
+++ /dev/null
@@ -1 +0,0 @@
-���ｿ���ｽ��ｿ��ｽｿ���
\ No newline at end of file
diff --git a/workdir/corpus/23833462f55515a900e016db2eb943fb474c19f6-2 b/workdir/corpus/23833462f55515a900e016db2eb943fb474c19f6-2
deleted file mode 100644
index 16e0e90..0000000
--- a/workdir/corpus/23833462f55515a900e016db2eb943fb474c19f6-2
+++ /dev/null
@@ -1 +0,0 @@
-
\ No newline at end of file
diff --git a/workdir/corpus/29368200289b4418d893fcc1cc269889e0a6bfb0-2 b/workdir/corpus/29368200289b4418d893fcc1cc269889e0a6bfb0-2
deleted file mode 100644
index e835914..0000000
--- a/workdir/corpus/29368200289b4418d893fcc1cc269889e0a6bfb0-2
+++ /dev/null
@@ -1 +0,0 @@
-��ｿ��
\ No newline at end of file
diff --git a/workdir/corpus/599f2fcab2882f9e2896e49c68a5955e10dc7122-3 b/workdir/corpus/599f2fcab2882f9e2896e49c68a5955e10dc7122-3
deleted file mode 100644
index c9169ca..0000000
--- a/workdir/corpus/599f2fcab2882f9e2896e49c68a5955e10dc7122-3
+++ /dev/null
@@ -1 +0,0 @@
-���������W
\ No newline at end of file
diff --git a/workdir/corpus/7a423337dc2c0923e996c50255f0c4a7702581d3-1 b/workdir/corpus/7a423337dc2c0923e996c50255f0c4a7702581d3-1
deleted file mode 100644
index 2d31828..0000000
--- a/workdir/corpus/7a423337dc2c0923e996c50255f0c4a7702581d3-1
+++ /dev/null
@@ -1 +0,0 @@
-�
\ No newline at end of file
diff --git a/workdir/corpus/8750ec9ddfe293cd1dc39b4245c21c270f8f52b7-1 b/workdir/corpus/8750ec9ddfe293cd1dc39b4245c21c270f8f52b7-1
deleted file mode 100644
index 6b84f9d..0000000
--- a/workdir/corpus/8750ec9ddfe293cd1dc39b4245c21c270f8f52b7-1
+++ /dev/null
@@ -1 +0,0 @@
-��
\ No newline at end of file
diff --git a/workdir/corpus/8c377ec00ce8265e2fb3689c098e594f9b2a2c9a-2 b/workdir/corpus/8c377ec00ce8265e2fb3689c098e594f9b2a2c9a-2
deleted file mode 100644
index f4f438f..0000000
--- a/workdir/corpus/8c377ec00ce8265e2fb3689c098e594f9b2a2c9a-2
+++ /dev/null
@@ -1 +0,0 @@
-

diff --git a/workdir/corpus/957666b9194bb12689255437cfc23ddb79b9231a-3 b/workdir/corpus/957666b9194bb12689255437cfc23ddb79b9231a-3
deleted file mode 100644
index 6c4a409..0000000
--- a/workdir/corpus/957666b9194bb12689255437cfc23ddb79b9231a-3
+++ /dev/null
@@ -1 +0,0 @@
-�ｿ��ｽｿ���
\ No newline at end of file
diff --git a/workdir/corpus/9d8099103966bb2134e94f46e34c312ea366c6b2-1 b/workdir/corpus/9d8099103966bb2134e94f46e34c312ea366c6b2-1
deleted file mode 100644
index 2771b74..0000000
--- a/workdir/corpus/9d8099103966bb2134e94f46e34c312ea366c6b2-1
+++ /dev/null
@@ -1 +0,0 @@
-
G
\ No newline at end of file
diff --git a/workdir/corpus/a2f77d89c69a5551e3ae0f1e9825e45dfb95ee5d-1 b/workdir/corpus/a2f77d89c69a5551e3ae0f1e9825e45dfb95ee5d-1
deleted file mode 100644
index bc02e1d8b560d79b2cce4c8cb35e8396f550cc1d..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 3
Kcmexg&j0`e{sDgg

diff --git a/workdir/corpus/b9ecf4a964523aa3508b6f1a001ef5466c067de6-6 b/workdir/corpus/b9ecf4a964523aa3508b6f1a001ef5466c067de6-6
deleted file mode 100644
index 551a4c1..0000000
--- a/workdir/corpus/b9ecf4a964523aa3508b6f1a001ef5466c067de6-6
+++ /dev/null
@@ -1 +0,0 @@
-���ｿ���ｽ��ｿ��ｿｽ�ｿ���ｽ�ｿ��ｽｿ�ｿ���ｽ�
\ No newline at end of file
diff --git a/workdir/corpus/da39a3ee5e6b4b0d3255bfef95601890afd80709 b/workdir/corpus/da39a3ee5e6b4b0d3255bfef95601890afd80709
deleted file mode 100644
index e69de29..0000000