hakurei/internal/app/username.go
Ophestra 1067775a5b
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internal/app: less strict username regex
Use the default value of NAME_REGEX from adduser. Should not hurt compatibility while being less strict.

Signed-off-by: Ophestra <cat@gensokyo.uk>
2025-08-28 00:22:55 +09:00

13 lines
365 B
Go

package app
import "regexp"
// nameRegex is the default NAME_REGEX value from adduser.
var nameRegex = regexp.MustCompilePOSIX(`^[a-zA-Z][a-zA-Z0-9_-]*\$?$`)
// isValidUsername returns whether the argument is a valid username
func isValidUsername(username string) bool {
return len(username) < sysconf(_SC_LOGIN_NAME_MAX) &&
nameRegex.MatchString(username)
}