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@dgjustice
dgjustice / main.go
Created February 28, 2023 00:44
Connect to Arista device with crypto/ssh in Go.
import (
"bytes"
"fmt"
"log"
"net"
"os"
"golang.org/x/crypto/ssh"
)
@dgjustice
dgjustice / main.go
Created August 11, 2023 20:06
Golang http vomit comet
package main
import (
"crypto/rand"
"errors"
"fmt"
"io"
"net/http"
"strconv"
)
@dgjustice
dgjustice / nxos-lldp.xml
Created December 12, 2022 22:03
oc-lldp
<?xml version="1.0" encoding="UTF-8"?>
<rpc-reply xmlns:nxos="http://www.cisco.com/nxos:1.0" xmlns:if="http://www.cisco.com/nxos:1.0:if_manager" xmlns:nfcli="http://www.cisco.com/nxos:1.0:nfcli" xmlns:vlan_mgr_cli="http://www.cisco.com/nxos:1.0:vlan_mgr_cli" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:edb152bf-d81c-42e4-b368-2d67d278ab88">
<data>
<lldp xmlns="http://openconfig.net/yang/lldp">
<config>
<enabled>true</enabled>
<hello-timer>30</hello-timer>
</config>
<interfaces>
<interface>
@dgjustice
dgjustice / oc.rs
Created December 12, 2022 22:02
Messing with YANG
use std::sync::Arc;
use std::fs::File;
use yang2::context::{Context, ContextFlags};
use yang2::data::{
Data, DataFormat, DataParserFlags, DataTree,
DataValidationFlags,
};
static SEARCH_DIR: &str = "/path/to/openconfig/public/";
@dgjustice
dgjustice / tokio-tasks.rs
Created November 29, 2022 00:57
Collect tokio tasks and process results
use tokio;
fn main() {
// we want to use this after the async block
let hosts = ["hostA", "hostB"];
let rt = tokio::runtime::Runtime::new().unwrap();
let mut results = Vec::with_capacity(hosts.len());
rt.block_on(async {
@dgjustice
dgjustice / example.py
Created May 5, 2022 20:48
`returns` weird `lash`
from returns import context, result, curry, pipeline, pointfree
def some(s):
def factory(deps):
print('in factory', deps)
return result.Success(42)
return context.RequiresContextResult(factory)
def plusone(arg):
@dgjustice
dgjustice / async_return.py
Created May 4, 2022 18:32
Compose `async` with `returns`
@future.future_safe
async def run_process(proc: asyncio.subprocess.Process) -> typing.Tuple[bytes, bytes]:
"""Run the async process and check the return code."""
stdout, stderr = await proc.communicate()
if proc.returncode:
logger.error('process exited with returncode {0}'.format(proc.returncode))
raise ValueError('process returned non-zero code')
return stdout, stderr
@dgjustice
dgjustice / prime.awk
Created March 25, 2022 20:32
Prime number fud
END {
for ( i = 1; i < 100; i++) {
arr[i] = i
}
for (p = 2;p < 49; p++) {
for (i = p*2; i < 100; i += p) {
delete arr[i]
}
}
for ( i = 1; i < 100; i++) {
@dgjustice
dgjustice / check_cisco_hash.py
Last active March 11, 2022 17:15
Check if configured password on Cisco device is what you expect it to be.
import crypt
from hmac import compare_digest
cisco = "username REDACTED password 5 $5$SALT$SOME-HASH role network-admin"
def check_pw_hashes_are_eq(username_cmd: str, cleartext: str) -> bool:
parts = username_cmd.split(' ')
pw_hash = parts[4]
pw_parts = pw_hash.split('$')
meth, salt, pw = pw_parts[1:]
@dgjustice
dgjustice / vlan.ml
Last active September 1, 2021 10:41
open Angstrom
let vlan_raw =
"VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi0/1
10 Management active
50 VLan50 active Fa0/1, Fa0/2, Fa0/3, Fa0/4, Fa0/5, Fa0/6, Fa0/7, Fa0/8, Fa0/9
Fa0/10, Fa0/11, Fa0/12
60 VLan60 active Fa0/13, Fa0/14, Fa0/15, Fa0/16, Fa0/17, Fa0/18, Fa0/19, Fa0/20