vm/cli: add parameter checks for load* commands

Prevent failing like this:

NEO-GO-VM > loadhex
panic: runtime error: index out of range

...
This commit is contained in:
Roman Khimov 2020-06-25 17:32:58 +03:00
parent 5d63ff100e
commit 003daf37cf

View file

@ -243,6 +243,10 @@ func handleXStack(c *ishell.Context) {
func handleLoadAVM(c *ishell.Context) {
v := getVMFromContext(c)
if len(c.Args) < 1 {
c.Err(errors.New("missing parameter <file>"))
return
}
if err := v.LoadFile(c.Args[0]); err != nil {
c.Err(err)
} else {
@ -253,6 +257,10 @@ func handleLoadAVM(c *ishell.Context) {
func handleLoadBase64(c *ishell.Context) {
v := getVMFromContext(c)
if len(c.Args) < 1 {
c.Err(errors.New("missing parameter <string>"))
return
}
b, err := base64.StdEncoding.DecodeString(c.Args[0])
if err != nil {
c.Err(err)
@ -265,6 +273,10 @@ func handleLoadBase64(c *ishell.Context) {
func handleLoadHex(c *ishell.Context) {
v := getVMFromContext(c)
if len(c.Args) < 1 {
c.Err(errors.New("missing parameter <string>"))
return
}
b, err := hex.DecodeString(c.Args[0])
if err != nil {
c.Err(err)
@ -277,6 +289,10 @@ func handleLoadHex(c *ishell.Context) {
func handleLoadGo(c *ishell.Context) {
v := getVMFromContext(c)
if len(c.Args) < 1 {
c.Err(errors.New("missing parameter <file>"))
return
}
fb, err := ioutil.ReadFile(c.Args[0])
if err != nil {
c.Err(err)