slither | Static Analyzer for Solidity | Blockchain library
kandi X-RAY | slither Summary
kandi X-RAY | slither Summary
Slither is a Solidity static analysis framework written in Python 3. It runs a suite of vulnerability detectors, prints visual information about contract details, and provides an API to easily write custom analyses. Slither enables developers to find vulnerabilities, enhance their code comprehension, and quickly prototype custom analyses.
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Top functions reviewed by kandi - BETA
- Parse command line arguments
- Read config file
- Parse filter_paths
- Main function
- Parse arguments
- Choose a list of detectors
- Return a tuple of detectors and printers
- Choose the printer classes to run
- Get source code
- Return the output of the compiler
- Generate output
- Detect the functions with dynamic calls
- Detect contract types
- Parse all the contracts in the codebase
- Detect external calls
- Post - call expression
- Write the contents of the contracts
- Generate an ERC20 contract
- Detect reentrancy calls
- Convert a Yul block
- Output the contract
- Extracts the constant value from the expression
- Detect reentrancy
- Get EVM instructions
- Generate the EVM output
- Write the Solidity to a file
- Detects the patches
slither Key Features
slither Examples and Code Snippets
Lines of Code : 38License : Permissive (MIT)
Copyimport requests
from random import choice
from slitherlib.slither import Snake
s = requests.Session()
snake = Snake()
ip_addresses = snake.ips
user_agents = snake.uas
headers = {
"User-Agent" : choice(user_agents)
}
try:
ip = ip_address function fib(n, a = 0, b = 1) { // argument initializers
if n == 0 { // no parenthesis around if or try
return a;
}
if n == 1 {
return // unambiguous grammar means
b; // that this returns b, not null
}
// tail recursion
solidiFI:
- url: git@github.com:smartbugs/SolidiFI-benchmark.git
- local_dir: dataset/solidiFI
- subsets: # Accessed as solidiFI/name
- overflow_underflow: buggy_contracts/Overflow-Underflow
- reentrancy: buggy_contracts Community Discussions
Trending Discussions on slither
QUESTION
Say I have a generic type that takes a parameter:
...ANSWER
Answered 2021-Sep-02 at 07:05First of all, it is impossible to do something like this in this case without extra generic parameter:
QUESTION
My code has two navigation bars. One in vertical and other in horizontal format.
The first issue:
I set the vertical bar such that it's scroll is active by this CSS code:
...ANSWER
Answered 2021-Aug-01 at 11:29I did refactor your code, for improve it. And fixed issues you wanted to solve.
QUESTION
how do online javascript games like agar.io, slither.io and all the other ".io" games communicate with their servers? I opened the Network tab on google chrome but no requests were there. Does google chrome hide these requests or do these websites use a different protocol?
...ANSWER
Answered 2021-Apr-22 at 15:33Most likely WebSockets. For example, in agar.io if you go into the chrome network tab you can see a WebSocket request:
Clicking on it we see the following WebSocket packets being transmitted and receieved:
The green being transmitted packets, and the red being received packets. If you click on one of those packets you can see a hex dump of the packet. If you want to learn more about WebSockets you can go here. A good WebSocket library is socket.io which you can learn about here.
QUESTION
I have programmed a simple clone of Slither.io in python using pygame and sockets and I have three problems:
- When I play the game alone on my laptop the game is choppy. Every ten seconds my game get stuck for a while (one milisecond) and then continue. It's not a big problem but it's annoying.
- When I play on two computers in my local network, I see the other player (the other snake) is also choppy.
- The strangest problem is when I run my server on my main laptop and then run the game on my second laptop the game starts and after few seconds crash. Debugger on client says that pickle data was truncated while receiving data from the server. But when I run the server program on my second laptop and the game on my main laptop everything is OK. Why?
I tried:
Problem 1. change FPS on the client and time.sleep on the server
Problem 2. change time.sleep on the server
Problem 3. change the input value of recv() method
Server code:
...ANSWER
Answered 2021-Mar-15 at 17:49Your third problem (truncated pickle data) is because you are using TCP, and you are unpickling whatever recv returns. You might be thinking that whenever you send something, and the receiver calls recv, returns the exact same thing, but actually it doesn't. TCP splits your data up into packets, so the receiver might not receive all the data at the same time.
For example, if you send "abcdefgh" and then separately send "ijkl", it's allowed for the first receive to return "abcd" and the second to return "efghijkl". Or the first one could return "ab" and the second one could return "cde" and the third one could return "fghijkl", or so on.
You have to design a way for the receiver to know when to stop receiving. For example, if you sent "8abcdefgh" and then "4ijkl", the receiver could get "8abcdefgh4ij", and then it knows "8abcdefgh" is one "send" (because it starts with 8 and then 8 more bytes) and it knows the "4ij" is the beginning of the next "send" but it's not the whole thing (because it starts with 4 but there aren't 4 more bytes).
Another way is to send a special character like a newline (enter key) after each message. This probably doesn't work with pickles because pickles can have newlines in them. But you could choose another byte that pickles don't have, like 0xFF. Then the receiver knows to keep on receiving until it sees the byte 0xFF.
QUESTION
Python version: 3.8.5 Solc version: 0.7.0+commit.9e61f92b.Linux.g++ Slither version: 0.6.13
When trying to run slither . on a solidity contract I get the following stack trace:
ANSWER
Answered 2020-Sep-28 at 10:22It was an error within Slither itself, it should be fixed in new update.
QUESTION
Essentially when the browser window goes larger thh div stays centered and creates white space on the outside. I want the same thing to happen when the browser window goes smaller. I want to see less of the div but keep it centered. At the moment I see less of the div but the left side locks so I end up only seeing a slither of the left part of the image (instead of the center). Sorry if this is a convoluted way of asking I am new to programming. Any help would be massively appreciated! Thanks in advance! :)
p.s I am also struggling to have the video playing if anyone can help with that too
Here is my code currently
...ANSWER
Answered 2020-Sep-25 at 15:28You can try
QUESTION
Am trying to show the 'You loose like the looser you are looser' text after the small moving rectangle hits the bounderies... but instead, the rectangle is moving past the bounderies and the 'You loose' text only shows up after i hit a random button... the code is below
...ANSWER
Answered 2020-Aug-27 at 13:47Right now you are only executing your collision code if there is a certain event because it is indented inside of the event loop, so it only happens if there is an event, in your case key press.
QUESTION
As an exercise, I am trying to create my own bind() function using apply() and prototypal inheritance that I have just learned.
This is my code:
...ANSWER
Answered 2020-Aug-15 at 12:56When you do:
QUESTION
Based on the typescript docs https://www.typescriptlang.org/docs/handbook/classes.html, here's an example of simple inheritance:
...ANSWER
Answered 2020-Jun-02 at 14:08How can one create a function that agnostically takes an instance of any of
Animal's subclasses?
It can just accept Animal, since subclasses can be used as arguments for superclass parameters:
QUESTION
I'm writing this program to become comfortable with types (not objects!).
The basic premise is the user enters an animal name (cow, snake bird), then an action (eat, move, sound.) My code then looks it up and returns the value.
So, the user entry is suppose to be on ONE line separated by a " ". I use strings.Split.
I'm getting a "panic" notice when the user only enters a single char. I'm thinking this panic arises out of the compiler trying to "split" a single char.
TWO Questions: 1. Am I right? 2. How do I fix it?
...ANSWER
Answered 2020-May-29 at 01:58Create the scanner outside the loop to avoid discarding buffered data. Break when Scan() returns false. Check for and handle invalid input.
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