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hasher: Check number of arguments

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This makes for a better user experience than a go segfault.
This commit is contained in:
Jonathon Reinhart
2021-02-15 00:18:15 -05:00
parent 70dfe6b128
commit 009ae8f73a
1 changed files with 5 additions and 1 deletions
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6
cmd/hasher.go
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@@ -8,11 +8,15 @@ import (
) )
func main() { func main() {
if len(os.Args) != 2 {
fmt.Fprintln(os.Stderr, "Usage: hasher PASSWORD")
os.Exit(1)
}
password := os.Args[1] password := os.Args[1]
hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost) hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil { if err != nil {
fmt.Println("Error generating hash: %s", err) fmt.Fprintln(os.Stderr, "Error generating hash: %s", err)
} }
fmt.Println(string(hash)) fmt.Println(string(hash))
} }