vpopmail-sqmail-cdb patch for vpopmail-5.4.33 by Roberto Puzzanghera
More info here https://notes.sagredo.eu/en/qmail-notes-185/installing-and-configuring-vpopmail-81.html

==============================================================================================================

Patch for s/qmail users who have the QMAILDIR/users/cdb moved to QMAILDIR/users/assign.cdb.
You can enable for vpopmail to look for the correct cdb file at configure time:

 --enable-sqmail-cdb                                                                                                                                                                                                                                                                                                                                                                   
Default option is disabled

==============================================================================================================

diff -ruN ../vpopmail-5.4.33-original/configure.in vpopmail-5.4.33/configure.in
--- ../vpopmail-5.4.33-original/configure.in	2011-02-28 18:00:45.000000000 +0100
+++ vpopmail-5.4.33/configure.in	2023-10-13 19:10:00.550225371 +0200
@@ -381,6 +381,27 @@
 AC_DEFINE_UNQUOTED(QMAILNEWMRH,"$qmailnewmrh","")
 
 #----------------------------------------------------------------------
+AC_MSG_CHECKING(whether we have to deal with assign.cdb file)
+AC_ARG_ENABLE(sqmail-cdb,
+    [  --disable-sqmail-cdb       If using s/qmail, vpopmail looks for qmail/users/assign.cdb instead of qmail/users/cdb (default disabled).],
+    SQMAILCDB=$enableval,
+                [
+                        SQMAILCDB=n
+                ]
+)
+
+case $SQMAILCDB in
+  1*|y*|Y*)
+        AC_MSG_RESULT(yes)
+        SQMAILCDB=1
+        AC_DEFINE_UNQUOTED(SQMAILCDB,$SQMAILCDB,"")
+        ;;
+  *)
+        AC_MSG_RESULT(no)
+        ;;
+esac
+
+#----------------------------------------------------------------------
 
 AC_MSG_CHECKING(for valid vpopmail user and group)
 
@@ -1866,6 +1887,15 @@
     ;;
 esac
 
+case $SQMAILCDB in
+  1*|y*|Y*)
+    echo "        sqmail-cdb = ON  --enable-sqmail-cdb"
+    ;;
+  *)
+    echo "        sqmail-cdb = OFF --disable-sqmail-cdb"
+    ;;
+esac
+
 echo "${CC} -O2" > cdb/conf-cc
 echo "${CC} -s" > cdb/conf-ld
 
diff -ruN ../vpopmail-5.4.33-original/doc/README.sqmail-cdb vpopmail-5.4.33/doc/README.sqmail-cdb
--- ../vpopmail-5.4.33-original/doc/README.sqmail-cdb	1970-01-01 01:00:00.000000000 +0100
+++ vpopmail-5.4.33/doc/README.sqmail-cdb	2023-10-13 19:29:50.489556185 +0200
@@ -0,0 +1,11 @@
+vpopmail-sqmail-cdb patch for vpopmail-5.4.33 by Roberto Puzzanghera
+More info here https://notes.sagredo.eu/en/qmail-notes-185/installing-and-configuring-vpopmail-81.html
+
+==============================================================================================================
+
+Patch for s/qmail users who have the QMAILDIR/users/cdb moved to QMAILDIR/users/assign.cdb.
+You can enable for vpopmail to look for the correct cdb file at configure time:
+
+--enable-sqmail-cdb
+
+Default option is disabled
diff -ruN ../vpopmail-5.4.33-original/vpopmail.c vpopmail-5.4.33/vpopmail.c
--- ../vpopmail-5.4.33-original/vpopmail.c	2011-02-28 18:00:45.000000000 +0100
+++ vpopmail-5.4.33/vpopmail.c	2023-10-13 17:48:22.683546115 +0200
@@ -2992,7 +2992,11 @@
   snprintf(cdb_key, sizeof(cdb_key), "!%s-", domain);
   
   /* work out the location of the cdb file */
+#ifdef SQMAILCDB
+  snprintf(cdb_file, sizeof(cdb_file), "%s/users/assign.cdb", QMAILDIR);
+#else
   snprintf(cdb_file, sizeof(cdb_file), "%s/users/cdb", QMAILDIR);
+#endif
 
   /* try to open the cdb file */
   if ( (fs = fopen(cdb_file, "r")) == 0 ) {