73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import (
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"fmt"
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"os"
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)
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// ---------------------------------------------------------
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// CHALLENGE #2
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// Add one more user to the PassMe program below.
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//
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// EXAMPLE USERS
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// username: jack
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// password: 1888
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//
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// username: inanc
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// password: 1879
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//
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// EXPECTED OUTPUT
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// go run main.go
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// Usage: [username] [password]
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//
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// go run main.go hacker 42
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// Access denied for "hacker".
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//
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// go run main.go jack 1888
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// Access granted to "jack".
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//
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// go run main.go inanc 1879
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// Access granted to "inanc".
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//
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// go run main.go jack 1879
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// Invalid password for "jack".
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//
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// go run main.go inanc 1888
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// Invalid password for "inanc".
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// ---------------------------------------------------------
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const (
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usage = "Usage: [username] [password]"
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errUser = "Access denied for %q.\n"
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errPwd = "Invalid password for %q.\n"
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accessOK = "Access granted to %q.\n"
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user = "jack"
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pass = "1888"
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)
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func main() {
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args := os.Args
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if len(args) != 3 {
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fmt.Println(usage)
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return
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}
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u, p := args[1], args[2]
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if u != user {
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fmt.Printf(errUser, u)
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} else if p != pass {
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fmt.Printf(errPwd, u)
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} else {
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fmt.Printf(accessOK, u)
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}
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}
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