elithrar

package main

import (
    "fmt"
    "log"
    "net/http"

    "html/template"

    "github.com/gorilla/sessions"

dwbuiten

Problems & Solutions for Interaction Between C and Go

At Vimeo, on the transcoding team, we work a lot with Go, and a lot with C, for various tasks such as media ingest. This means we use CGO quite extensively, and consequently, have run into bits that are perhaps not very well documented, if at all. Below is my effort to document some of the problems we've run into, and how we fixed or worked around them.

Many of these are obviously wrong in retrospect, but hindsight is 20/20, and these problems do exist in many codebases currently.

Some are definitely ugly, and I much welcome better solutions! Tweet me at @daemon404 if you have any, or have your own CGO story/tips, please! I'd love to learn of them.

Table of Contents

denji

Moved to git repository: https://github.com/denji/golang-tls

Generate private key (.key)

# Key considerations for algorithm "RSA" ≥ 2048-bit
openssl genrsa -out server.key 2048

# Key considerations for algorithm "ECDSA" ≥ secp384r1
# List ECDSA the supported curves (openssl ecparam -list_curves)

grihabor

MAKE               := make --no-print-directory

DESCRIBE           := $(shell git describe --match "v*" --always --tags)
DESCRIBE_PARTS     := $(subst -, ,$(DESCRIBE))

VERSION_TAG        := $(word 1,$(DESCRIBE_PARTS))
COMMITS_SINCE_TAG  := $(word 2,$(DESCRIBE_PARTS))

VERSION            := $(subst v,,$(VERSION_TAG))
VERSION_PARTS      := $(subst ., ,$(VERSION))

evandrix

Here are a list of headless browsers that I know about:

• [HtmlUnit][1] - Java. Custom browser engine. JavaScript support/DOM emulated. Open source.
• [Ghost][2] - Python only. WebKit-based. Full JavaScript support. Open source.
• [Twill][3] - Python/command line. Custom browser engine. No JavaScript. Open source.
• [PhantomJS][4] - Command line/all platforms. WebKit-based. Full JavaScript support. Open source.
• [Awesomium][5] - C++/.Net/all platforms. Chromium-based. Full JavaScript support. Commercial/free.
• [SimpleBrowser][6] - .Net 4/C#. Custom browser engine. No JavaScript support. Open source.
• [ZombieJS][7] - Node.js. Custom browser engine. JavaScript support/emulated DOM. Open source.
• [EnvJS][8] - JavaScript via Java/Rhino. Custom browser engine. JavaScript support/emulated DOM. Open source.

jzelinskie

-- Refer to manual: https://knot-resolver.readthedocs.io/en/latest/daemon.html#configuration

-- Listen on all interfaces (localhost would not work in Docker)
net.listen('0.0.0.0')
net.listen('0.0.0.0', 853, {tls=true})

-- Auto-maintain root TA
trust_anchors.file = '/data/root.keys'

-- Load Useful modules

StefanPetrick

// Polar basics demo for the 
// FastLED Podcast #2
// https://www.youtube.com/watch?v=KKjFRZFBUrQ
//
// VO.1 preview version
// by Stefan Petrick 2023
// This code is licenced under a 
// Creative Commons Attribution 
// License CC BY-NC 3.0

adharris

package main

import (
	"database/sql"
	"errors"
	"fmt"
	_ "github.com/bmizerany/pq"
	"os"
	"regexp"
	"strings"

awalterschulze

all:
	make build
	make objdump

build:
	go build -gcflags -m main.go

objdump:
	go tool objdump -s "main.main" main | grep CALL

fiorix

package main

import (
	"encoding/hex"
	"log"
	"net"
	"time"
)

const (