From 274686d10d3386a41f8fb6bc3363269a734afe0e Mon Sep 17 00:00:00 2001 From: Ophestra Date: Wed, 29 Oct 2025 03:40:09 +0900 Subject: internal/validate: relocate from app These are free of the dispatcher from internal/app. This change relocates them into their own package. Signed-off-by: Ophestra --- internal/validate/username.go | 12 ++++++++++++ 1 file changed, 12 insertions(+) create mode 100644 internal/validate/username.go (limited to 'internal/validate/username.go') diff --git a/internal/validate/username.go b/internal/validate/username.go new file mode 100644 index 00000000..2249cd27 --- /dev/null +++ b/internal/validate/username.go @@ -0,0 +1,12 @@ +package validate + +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) +} -- cgit v1.3.1