The branch main has been updated by des:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=46a619c6d4cfc662069950baca16ec2a3b18b8a5

commit 46a619c6d4cfc662069950baca16ec2a3b18b8a5
Author:     Dag-Erling Smørgrav <[email protected]>
AuthorDate: 2024-05-15 12:13:49 +0000
Commit:     Dag-Erling Smørgrav <[email protected]>
CommitDate: 2024-05-15 12:13:49 +0000

    adduser: Additional variable fixes.
    
    One function used `_input` without making it local, causing its value to
    leak into other functions.  This broke the `-f` case.  Fix that instance
    and initialize all local variables that weren't already initialized.
    
    Fixes:          170d0882903e
    MFC after:      3 days
    Reviewed by:    karels
    Differential Revision:  https://reviews.freebsd.org/D45204
---
 usr.sbin/adduser/adduser.sh | 41 +++++++++++++++++++++--------------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/usr.sbin/adduser/adduser.sh b/usr.sbin/adduser/adduser.sh
index 61a4b3b5058f..7c3fdb418179 100644
--- a/usr.sbin/adduser/adduser.sh
+++ b/usr.sbin/adduser/adduser.sh
@@ -53,7 +53,7 @@ info() {
 #      by pw(8).
 #
 get_nextuid () {
-       local _uid=$1 _nextuid
+       local _uid=$1 _nextuid=
 
        if [ -z "$_uid" ]; then
                _nextuid="$(${PWCMD} usernext | cut -f1 -d:)"
@@ -101,7 +101,7 @@ show_usage() {
 #      basename of the shell is output.
 #
 valid_shells() {
-       local _prefix
+       local _prefix=
 
        ${GREPCMD} '^[^#]' ${ETCSHELLS} |
        while read _path _junk ; do
@@ -119,7 +119,7 @@ valid_shells() {
 #      full path to the shell from the /etc/shells file.
 #
 fullpath_from_shell() {
-       local _shell=$1 _fullpath
+       local _shell=$1 _fullpath=
 
        if [ -z "$_shell" ]; then
                return
@@ -154,7 +154,7 @@ fullpath_from_shell() {
 #      will emit an informational message saying so.
 #
 shell_exists() {
-       local _sh="$1"
+       local _sh=$1
 
        if [ -z "$(fullpath_from_shell "$_sh")" ] ; then
                err "Invalid shell ($_sh) for user $username."
@@ -193,8 +193,9 @@ save_config() {
 #      message or lock the account, do so.
 #
 add_user() {
-       local _uid _name _comment _gecos _home _group _grouplist _shell _class
-       local _dotdir _expire _pwexpire _passwd _upasswd _passwdmethod _pwcmd
+       local _uid= _name= _comment= _gecos= _home= _group= _grouplist=
+       local _shell= _class= _dotdir= _expire= _pwexpire= _passwd= _upasswd=
+       local _passwdmethod= _pwcmd=
 
        # Is this a configuration run? If so, don't modify user database.
        #
@@ -299,7 +300,7 @@ add_user() {
                fi
        fi
 
-       local _line _owner _perms _file _dir
+       local _line= _owner= _perms= _file= _dir=
        if [ -n "$msgflag" ]; then
                if [ -r "$msgfile" ]; then
                        # We're evaluating the contents of an external file.
@@ -331,7 +332,7 @@ add_user() {
 #      a file it will output an error message and return to the caller.
 #
 get_user() {
-       local _input
+       local _input=
 
        # No need to take down user names if this is a configuration saving run.
        [ -n "$configflag" ] && return
@@ -366,7 +367,7 @@ get_user() {
 #      and batch (from file) mode.
 #
 get_gecos() {
-       local _input
+       local _input=
 
        # No need to take down additional user information for a configuration 
run.
        [ -n "$configflag" ] && return
@@ -386,7 +387,7 @@ get_gecos() {
 #      If an invalid shell is entered it will simply use the default shell.
 #
 get_shell() {
-       local _input _fullpath
+       local _input= _fullpath=
        ushell="$defaultshell"
 
        # Make sure the current value of the shell is a valid one
@@ -424,7 +425,7 @@ get_shell() {
 #      and batch input.
 #
 get_homedir() {
-       _input=
+       local _input=
        if [ -z "$fflag" ]; then
                echo -n "Home directory [${homeprefix}/${username}]: "
                read _input
@@ -450,7 +451,7 @@ get_homedir() {
 #      Reads the account's home directory permissions.
 #
 get_homeperm() {
-       local _input _prompt
+       local _input= _prompt=
        uhomeperm=$defaultHomePerm
 
        if [ -n "$uhomeperm" ]; then
@@ -473,7 +474,7 @@ get_homeperm() {
 #      so, enable ZFS home dataset creation.
 #
 get_zfs_home() {
-       local _prefix
+       local _prefix=
 
        # check if zfs kernel module is loaded before attempting to run zfs to
        # prevent loading the kernel module on systems that don't use ZFS
@@ -494,7 +495,7 @@ get_zfs_home() {
 #      allocates one if it is not specified.
 #
 get_uid() {
-       local _input _prompt
+       local _input= _prompt=
        uuid=${uidstart}
 
        if [ -n "$uuid" ]; then
@@ -519,7 +520,7 @@ get_uid() {
 #      Reads login class of account. Can be used in interactive or batch mode.
 #
 get_class() {
-       local _input _class
+       local _input= _class=
        uclass="$defaultclass"
        _class=${uclass:-"default"}
 
@@ -541,7 +542,7 @@ get_class() {
 #      will then provide a login group with the same name as the username.
 #
 get_logingroup() {
-       local _input
+       local _input=
        ulogingroup="$defaultLgroup"
 
        if [ -z "$fflag" ]; then
@@ -560,7 +561,7 @@ get_logingroup() {
 #      and batch modes.
 #
 get_groups() {
-       local _input _group
+       local _input= _group=
        ugroups="$defaultgroups"
        _group=${ulogingroup:-"${username}"}
 
@@ -626,7 +627,7 @@ get_password() {
 #      Ask user if they want to enable encryption on their ZFS home dataset.
 #
 get_zfs_encryption() {
-       local _input _prompt
+       local _input= _prompt=
        _prompt="Enable ZFS encryption? (yes/no) [${Zencrypt}]: "
        while : ; do
                echo -n "$_prompt"
@@ -702,7 +703,7 @@ set_zfs_perms() {
 #      adds it to the user database.
 #
 input_from_file() {
-       local _field
+       local _field=
 
        while read -r fileline ; do
                case "$fileline" in
@@ -733,7 +734,7 @@ input_from_file() {
 #      the user database.
 #
 input_interactive() {
-       local _disable _pass _passconfirm _input
+       local _disable= _pass= _passconfirm= _input=
        local _random="no"
        local _emptypass="no"
        local _usepass="yes"

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