patch-ddclient.in

--- ddclient.in.orig	2026-01-25 18:18:45 UTC
+++ ddclient.in
@@ -21,6 +21,7 @@ use Sys::Hostname;
 use File::Temp;
 use Getopt::Long;
 use Sys::Hostname;
+use POSIX 'setsid';
 
 # Declare the ddclient version number.
 #
@@ -132,8 +133,8 @@ sub subst_var {
     return $subst;
 }
 
-my $etc = subst_var('@confdir@', '/etc/ddclient');
-my $cachedir = subst_var('@localstatedir@', '/var') . '/cache/ddclient';
+my $etc = subst_var('@confdir@', '%%ETCDIR%%');
+my $cachedir = subst_var('@localstatedir@', '/var') . '/tmp';
 our @curl = (subst_var('@CURL@', 'curl'));
 
 our $emailbody = '';
@@ -147,7 +148,7 @@ our $_l = ddclient::Logger->new();
 #    local _l = pushlogctx('additional context goes here');
 our $_l = ddclient::Logger->new();
 
-$ENV{'PATH'} = (exists($ENV{PATH}) ? "$ENV{PATH}:" : "") . "/sbin:/usr/sbin:/bin:/usr/bin:/etc:/usr/lib:";
+$ENV{'PATH'} = (exists($ENV{PATH}) ? "$ENV{PATH}:" : "") . "/sbin:%%LOCALBASE%%/sbin:/bin:";
 
 our %globals;
 our %config;
@@ -1469,16 +1470,18 @@ sub main {
         ;
     } elsif (opt('daemon')) {
         $SIG{'CHLD'} = 'IGNORE';
+        chdir '/';
+        open(STDIN,  "</dev/null");
+        open(STDOUT, ">/dev/null");
         my $pid = fork;
         if ($pid < 0) {
             fatal("failed to fork: %s", $!);
         } elsif ($pid) {
             exit 0;
         }
+        setsid;
         $SIG{'CHLD'} = 'DEFAULT';
-        open(STDOUT, ">/dev/null");
-        open(STDERR, ">/dev/null");
-        open(STDIN,  "</dev/null");
+        open(STDERR, "&STDOUT");
         write_pid();
     }
 
@@ -2374,17 +2377,17 @@ sub pipecmd {
     ## execute the command.
     local *FD;
     if (!open(FD, $cmd)) {
-        warning('cannot execute command');
+        warning("$program: cannot execute command %s.", $cmd);
 
     } elsif ($stdin && (!print FD "$stdin\n")) {
-        warning('failed writing to stdin');
+        warning("$program: failed writing to stdin %s.", $cmd);
         close(FD);
 
     } elsif (!close(FD)) {
-        warning("failed closing stdin: $@");
+        warning("$program: failed closing stdin: %s. ($@)", $cmd);
 
     } elsif (opt('exec') && $?) {
-        warning("failed: $@");
+        warning("$program: failed: %s. ($@)", $cmd);
 
     } else {
         $ok = 1;