├── README.md
└── seashells.go


/README.md:
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 1 | ### Seashells in Go
 2 | 
 3 | A Golang port of the awesome [seashells client](https://github.com/anishathalye/seashells), for use with [seashells.io](https://seashells.io).
 4 | 
 5 | ## Install
 6 | 
 7 | ```
 8 | go get github.com/hans-strudle/seashells
 9 | ```
10 | 
11 | ## Usage
12 | 
13 | ```
14 | $> seashells --help
15 |     -d int
16 |         Delay
17 |     -i string
18 |         URL/IP to use (default "seashells.io")
19 |     -p string
20 |         Port to use (default "1337")
21 |     -q    Suppress writing to stdout
22 | ```
23 | 
24 | 


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/seashells.go:
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 1 | package main
 2 | 
 3 | import (
 4 | 	"bufio"
 5 | 	"flag"
 6 | 	"fmt"
 7 | 	"io"
 8 | 	"log"
 9 | 	"net"
10 | 	"os"
11 | 	"syscall"
12 | 	"time"
13 | )
14 | 
15 | var (
16 | 	url    = flag.String("i", "seashells.io", "URL/IP to use")
17 | 	port   = flag.String("p", "1337", "Port to use")
18 | 	output = flag.Bool("q", false, "Suppress writing to stdout")
19 | 	delay  = flag.Int("d", 0, "Delay")
20 | )
21 | 
22 | func main() {
23 | 	flag.Parse()
24 | 
25 | 	fullUrl := *url + ":" + *port
26 | 	conn, err := net.Dial("tcp", fullUrl)
27 | 	if err != nil {
28 | 		log.Fatal(err)
29 | 	}
30 | 
31 | 	serverUrl, err := bufio.NewReader(conn).ReadString('\n')
32 | 	fmt.Fprint(os.Stderr, serverUrl) // write url to sderr
33 | 
34 | 	if *delay > 0 {
35 | 		time.Sleep(time.Duration(*delay) * time.Second)
36 | 	}
37 | 
38 | 	scan := bufio.NewReader(os.Stdin)
39 | 	var both io.Writer
40 | 	if *output == true {
41 | 		both = conn
42 | 	} else {
43 | 		both = io.MultiWriter(os.Stdout, conn) // will write to stdout and the net connection
44 | 	}
45 | 
46 | 	done := make(chan error)
47 | 
48 | 	go func() {
49 | 		for {
50 | 			err := syscall.Select(1, &syscall.FdSet{[32]int32{1}}, nil, nil, nil) // check for data on stdin
51 | 			done <- err
52 | 
53 | 			_, err = io.Copy(both, scan) // send the scan data to the multiwriter
54 | 			done <- err
55 | 
56 | 			_, _, err = scan.ReadLine() // just want to see if we get an EOF
57 | 			if err == io.EOF {
58 | 				os.Exit(0)
59 | 			}
60 | 			done <- err
61 | 		}
62 | 	}()
63 | 	for {
64 | 		select {
65 | 		case err := <-done:
66 | 			if err != nil {
67 | 				log.Fatal(err)
68 | 			}
69 | 		}
70 | 	}
71 | }
72 | 


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