stubbing out more plugins

Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>

walker/walkers/chmodFuzz/plugin.go

@@ -0,0 +1,23 @@
+package main
+
+import (
+	"os"
+	"time"
+
+	"git.thisco.de/vbatts/fuzz-walker/walker"
+)
+
+// NewFuzzer creates the fuzzer for this plugin
+func NewFuzzer() (walker.Fuzzer, error) {
+	return &myFuzzer{}, nil
+}
+
+type myFuzzer struct{}
+
+func (mf myFuzzer) Name() string {
+	return "chmodFuzz"
+}
+
+func (mf myFuzzer) Func(path string, info os.FileInfo, timeout time.Duration) error {
+	return nil
+}

walker/walkers/ioctlFuzz/plugin.go

@@ -0,0 +1,28 @@
+package main
+
+import (
+	"os"
+	"time"
+
+	"git.thisco.de/vbatts/fuzz-walker/walker"
+)
+
+// NewFuzzer creates the fuzzer for this plugin
+func NewFuzzer() (walker.Fuzzer, error) {
+	return &myFuzzer{}, nil
+}
+
+type myFuzzer struct{}
+
+func (mf myFuzzer) Name() string {
+	return "ioctlFuzz"
+}
+
+func (mf myFuzzer) Func(path string, info os.FileInfo, timeout time.Duration) error {
+	// check whether it is a device file
+	//if !info.Mode().IsRegular() {
+	//	return nil
+	//}
+
+	return nil
+}

walker/walkers/readFuzz/plugin.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"fmt"
 	"io"
 	"io/ioutil"
 	"os"
@@ -10,6 +9,7 @@ import (
 	"git.thisco.de/vbatts/fuzz-walker/walker"
 )
 
+// NewFuzzer creates the fuzzer for this plugin
 func NewFuzzer() (walker.Fuzzer, error) {
 	return &myFuzzer{}, nil
 }
@@ -21,22 +21,16 @@ func (mf myFuzzer) Name() string {
 }
 
 func (mf myFuzzer) Func(path string, info os.FileInfo, timeout time.Duration) error {
-	c1 := make(chan error, 1)
-	go func() {
-		fd, err := os.Open(path)
-		if err != nil {
-			c1 <- err
-		}
-		defer fd.Close()
-		_, err = io.Copy(ioutil.Discard, fd)
-		c1 <- err
-	}()
-
-	select {
-	case err := <-c1:
-		return err
-	case <-time.After(timeout):
-		return fmt.Errorf("timeout reached")
+	if !info.Mode().IsRegular() {
+		return nil
 	}
-	return nil
+
+	fd, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer fd.Close()
+
+	_, err = io.Copy(ioutil.Discard, fd)
+	return err
 }

walker/walkers/writeBytesFuzz/plugin.go

@@ -0,0 +1,32 @@
+package main
+
+import (
+	"os"
+	"time"
+
+	"git.thisco.de/vbatts/fuzz-walker/walker"
+)
+
+// NewFuzzer creates the fuzzer for this plugin
+func NewFuzzer() (walker.Fuzzer, error) {
+	return &myFuzzer{}, nil
+}
+
+type myFuzzer struct{}
+
+func (mf myFuzzer) Name() string {
+	return "writeBytesFuzz"
+}
+
+func (mf myFuzzer) Func(path string, info os.FileInfo, timeout time.Duration) error {
+	if !info.Mode().IsRegular() {
+		return nil
+	}
+	fd, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer fd.Close()
+
+	return nil
+}

walker/walkers/writeNumFuzz/plugin.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"os"
+	"time"
+
+	"git.thisco.de/vbatts/fuzz-walker/walker"
+)
+
+// NewFuzzer creates the fuzzer for this plugin
+func NewFuzzer() (walker.Fuzzer, error) {
+	return &myFuzzer{}, nil
+}
+
+type myFuzzer struct{}
+
+func (mf myFuzzer) Name() string {
+	return "writeNumFuzz"
+}
+
+func (mf myFuzzer) Func(path string, info os.FileInfo, timeout time.Duration) error {
+	if !info.Mode().IsRegular() {
+		return nil
+	}
+	fd, err := os.Open(path)
+	if err != nil {
+		return err
+	}
+	defer fd.Close()
+	return nil
+}