adduser: allow standard IFS characters in passwords

Notably, the default IFS contains space/tab, thus any leading/trailing
whitespace characters tend to be removed.

Set IFS= for just the read lines to mitigate this, allowing the user to be
less surprised when their leading/trailing spaces weren't actually captured
in the password as they are with other means of setting a user's password.

PR:		245342
Submitted by:	dereks_lifeofadishwasher.com
Reviewed by:	jilles
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D24292

diff --git a/adduser/adduser.sh b/adduser/adduser.sh
index 5f80d77f7ca65bfaa9fd3e986ccf63e535516901..91a1b4b4cf016aa4a048a2fea2487d65112274e7 100644 (file)
--- a/adduser/adduser.sh
+++ b/adduser/adduser.sh
@@ -733,10 +733,10 @@ input_interactive() {
                                        trap 'stty echo; exit' 0 1 2 3 15
                                        stty -echo
                                        echo -n "Enter password: "
-                                       read -r upass
+                                       IFS= read -r upass
                                        echo''
                                        echo -n "Enter password again: "
-                                       read -r _passconfirm
+                                       IFS= read -r _passconfirm
                                        echo ''
                                        stty echo
                                        # if user entered a blank password