From fb91c9416dba59516cb1ea3f3e6cf0137dc4ef34 Mon Sep 17 00:00:00 2001
From: OBATA Akio <obache@outlook.com>
Date: Sun, 17 Oct 2021 12:19:52 +0900
Subject: [PATCH] dtcm: resolve mismatch between `tm.tm_gmtoff` and global
 `timezone`

`timezone` and `tm.tm_gmtoff` represent reversed sign value each other.
Change `tm.tm_gmtoff` usage to be matched with `timezone`.
---
 cde/programs/dtcm/libDtCmP/getdate.y | 2 +-
 cde/programs/dtcm/libDtCmP/timeops.c | 2 +-
 cde/programs/dtcm/server/rtable4.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/cde/programs/dtcm/libDtCmP/getdate.y b/cde/programs/dtcm/libDtCmP/getdate.y
index c25bfbe8d..7b1d00122 100644
--- a/cde/programs/dtcm/libDtCmP/getdate.y
+++ b/cde/programs/dtcm/libDtCmP/getdate.y
@@ -531,7 +531,7 @@ time_t cm_getdate(char *p, struct timeb *now)
 		lt = localtime(&tod);
 		now->time = lt->tm_sec;
 #ifdef __OpenBSD__
-		now->timezone = lt->tm_gmtoff / 60;
+		now->timezone = - lt->tm_gmtoff / 60;
 #else
 		now->timezone = timezone/60;
 #endif
diff --git a/cde/programs/dtcm/libDtCmP/timeops.c b/cde/programs/dtcm/libDtCmP/timeops.c
index 7fc47f133..7660a2ec3 100644
--- a/cde/programs/dtcm/libDtCmP/timeops.c
+++ b/cde/programs/dtcm/libDtCmP/timeops.c
@@ -986,7 +986,7 @@ gmt_off(void)
 
         t       = now();
         tm      = *_XLocaltime(&t, localtime_buf);
-        gmt = tm.tm_gmtoff;
+        gmt = - tm.tm_gmtoff;
 #endif /* SVR4 */
         return(gmt);
 }
diff --git a/cde/programs/dtcm/server/rtable4.c b/cde/programs/dtcm/server/rtable4.c
index e44db64c3..bb1adc9e3 100644
--- a/cde/programs/dtcm/server/rtable4.c
+++ b/cde/programs/dtcm/server/rtable4.c
@@ -1423,7 +1423,7 @@ _DtCm_rtable_gmtoff_4_svc(void *args, struct svc_req *svcrq)
 #if defined(CSRG_BASED)
 	ctime = time(NULL);
 	t = localtime(&ctime);
-	gmtoff = t->tm_gmtoff;
+	gmtoff = - t->tm_gmtoff;
 #else
 	gmtoff = timezone;
 #endif