The branch main has been updated by cy:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=9e248b7f645cdf05615a49cc15295df49b54d659

commit 9e248b7f645cdf05615a49cc15295df49b54d659
Author:     Cy Schubert <c...@freebsd.org>
AuthorDate: 2024-04-18 18:56:54 +0000
Commit:     Cy Schubert <c...@freebsd.org>
CommitDate: 2024-04-24 05:50:38 +0000

    kdc: Add restart option
    
    Add a new kdc_restart rc variable that manages kdc (or krb5kdc) under
    daemon(8). This automatically restarts the kdc should it fail, i.e.
    when it's configured to use LDAP as a backend and cannot connect to its
    LDAP directory.
    
    Set kdc_restart="YES" to auto restart kdc on abnormal termination.
    
    Set kdc_restart_delay="N" to the number of seconds to delay before
    restarting the kdc. The daemon(8) default seconds applies when not set.
    
    Reported by:            Lexi Winter <lexi.free...@le-fay.org>
    PR:                     278395
    Differential Revision:  https://reviews.freebsd.org/D44898
---
 libexec/rc/rc.conf  |  2 ++
 libexec/rc/rc.d/kdc | 29 +++++++++++++++++++++++++++--
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/libexec/rc/rc.conf b/libexec/rc/rc.conf
index 6a8b6e257b17..c91f13bd9812 100644
--- a/libexec/rc/rc.conf
+++ b/libexec/rc/rc.conf
@@ -330,6 +330,8 @@ resolv_enable="YES"         # Enable resolv / resolvconf
 kdc_enable="NO"                        # Run a kerberos 5 KDC (or NO).
 kdc_program="/usr/libexec/kdc" # path to kerberos 5 KDC
 kdc_flags=""                   # Additional flags to the kerberos 5 KDC
+kdc_restart="NO"               # Auto restart kdc on abnormal termination
+kdc_restart_delay=""           # Auto restart delay seconds
 kadmind_enable="NO"            # Run kadmind (or NO)
 kadmind_program="/usr/libexec/kadmind" # path to kadmind
 kpasswdd_enable="NO"           # Run kpasswdd (or NO)
diff --git a/libexec/rc/rc.d/kdc b/libexec/rc/rc.d/kdc
index c3059f261e09..a2d9f87f8e20 100755
--- a/libexec/rc/rc.d/kdc
+++ b/libexec/rc/rc.d/kdc
@@ -12,15 +12,40 @@
 name=kdc
 desc="Kerberos 5 server"
 rcvar=${name}_enable
+: ${kdc_restart:="NO"}
+: ${kdc_restart_delay:=""}
 
 set_rcvar_obsolete kerberos5_server_enable kdc_enable
 set_rcvar_obsolete kerberos5_server kdc_program
 set_rcvar_obsolete kerberos5_server_flags kdc_flags
 
-
 load_rc_config $name
 if [ "${kdc_program}" = /usr/libexec/kdc -o \
      "${kdc_program}" = /usr/local/libexec/kdc ]; then
-       command_args="$command_args --detach"
+       detach="--detach"
+       flavor=heimdal
+else
+       flavor=mit
+       unset detach
 fi
+
+case ${kdc_restart} in
+[Yy][Ee][Ss])
+       if [ "$flavor" = mit ]; then
+               detach=-n
+       else
+               unset detach
+       fi
+       case ${kdc_restart_delay} in
+       "")     unset daemon_restart_delay;;
+       *)      daemon_restart_delay="-R ${kdc_restart_delay}";;
+       esac
+       command_args="-r ${daemon_restart_delay} ${kdc_program} ${detach} 
${command_args}"
+       kdc_program=/usr/sbin/daemon
+       ;;
+*)
+       command_args="${detach} ${command_args}"
+       ;;
+esac
+
 run_rc_command "$1"

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