From ead09e9d6cc6e428d319daa5dbff1b7c4903616c Mon Sep 17 00:00:00 2001
From: Art Cancro <ajc@citadel.org>
Date: Tue, 14 Feb 2023 09:36:05 -0500
Subject: [PATCH] Experimental utility ctdl3264 for database conversion (not
 finished)

---
 citadel/.gitignore             |  1 +
 citadel/Makefile               |  8 ++++++-
 citadel/utils/ctdl3264.c       | 41 ++++++++++++++++++++++++++++++++++
 citadel/utils/ctdl3264_prep.sh | 21 +++++++++++++++++
 4 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 citadel/utils/ctdl3264.c
 create mode 100755 citadel/utils/ctdl3264_prep.sh

diff --git a/citadel/.gitignore b/citadel/.gitignore
index 24b5eaad6..33640816c 100644
--- a/citadel/.gitignore
+++ b/citadel/.gitignore
@@ -30,3 +30,4 @@ netconfigs
 data
 package-version.txt
 core.*
+utils/ctdl3264_structs.h
diff --git a/citadel/Makefile b/citadel/Makefile
index c89f92cc0..a57473264 100644
--- a/citadel/Makefile
+++ b/citadel/Makefile
@@ -11,7 +11,7 @@
 # config.mk is generated by ./configure
 include config.mk
 
-all := citserver setup ctdlmigrate sendcommand citmail chkpw chkpwd
+all := citserver setup ctdlmigrate sendcommand citmail chkpw chkpwd ctdl3264
 all: $(all)
 
 citserver: server/*.c server/modules/*/*.c config.mk server/*.h
@@ -38,6 +38,12 @@ chkpw: utils/chkpw.c utils/*.h server/*.h
 chkpwd: utils/chkpwd.c utils/auth.c utils/*.h server/*.h
 	cc ${CFLAGS} ${LDFLAGS} utils/chkpwd.c utils/auth.c -lcrypt -o chkpwd
 
+ctdl3264: utils/ctdl3264.c utils/*.h server/*.h utils/ctdl3264_structs.h
+	cc ${CFLAGS} ${LDFLAGS} utils/ctdl3264.c -ldb -o ctdl3264
+
+utils/ctdl3264_structs.h: server/server.h utils/ctdl3264_prep.sh
+	utils/ctdl3264_prep.sh
+
 config.mk: configure
 	./configure
 
diff --git a/citadel/utils/ctdl3264.c b/citadel/utils/ctdl3264.c
new file mode 100644
index 000000000..8d51e9c06
--- /dev/null
+++ b/citadel/utils/ctdl3264.c
@@ -0,0 +1,41 @@
+// Attempt to convert your database from 32-bit to 64-bit.
+// Don't run this.  It doesn't work and if you try to run it you will immediately die.
+//
+// Copyright (c) 1987-2022 by the citadel.org team
+//
+// This program is open source software.  Use, duplication, or disclosure
+// is subject to the terms of the GNU General Public License, version 3.
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netdb.h>
+#include <string.h>
+#include <pwd.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <limits.h>
+#include <libcitadel.h>
+#include "../server/sysdep.h"
+#include "../server/citadel_defs.h"
+#include "../server/server.h"
+#include "../server/citadel_dirs.h"
+#include "ctdl3264_structs.h"
+
+
+int main(int argc, char **argv) {
+
+	if (sizeof(void *) != 8) {
+		fprintf(stderr, "%s: this is a %ld-bit system.\n", argv[0], sizeof(void *)*8);
+		fprintf(stderr, "%s: you must run this on a 64-bit system, onto which a 32-bit database has been copied.\n", argv[0]);
+		exit(1);
+	}
+
+
+	exit(0);
+}
diff --git a/citadel/utils/ctdl3264_prep.sh b/citadel/utils/ctdl3264_prep.sh
new file mode 100755
index 000000000..f68a0d988
--- /dev/null
+++ b/citadel/utils/ctdl3264_prep.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+SERVER_H=server/server.h
+
+convert_struct() {
+	start_line=$(cat ${SERVER_H} | egrep -n "^struct $1 {" | cut -d: -f1)
+	tail +${start_line} ${SERVER_H} | sed '/};/q' \
+	| sed s/"^struct $1 {"/"struct ${1}_32 {"/g \
+	| sed s/"int "/"int32_t "/g \
+	| sed s/"long "/"int32_t "/g \
+	| sed s/"time_t "/"int32_t "/g
+
+}
+
+(
+	convert_struct "ctdluser"
+	convert_struct "ctdlroom"
+	convert_struct "ExpirePolicy"
+	convert_struct "floor"
+
+) >utils/ctdl3264_structs.h
-- 
2.39.2