From d83c50b8e44db2a2e19d048ab7d1e1caf1fa1996 Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@redhat.com>
Date: Wed, 6 Oct 2004 22:27:43 +0000
Subject: [PATCH] 2004-09-13  Ulrich Drepper <drepper@redhat.com>, Dmitry V.
 Levin <ldv@altlinux.org>

	* time.c [LINUX] (print_rtc): New function, for printing rtc_time
	structure.
	[LINUX] (rtc_ioctl): New function, for parsing RTC_* ioctls.
	* ioctl.c [LINUX] (ioctl_decode): Call rtc_ioctl.
	* defs.h [LINUX]: Declare rtc_ioctl.
	Fixes RH#58606.
---
 defs.h  |  3 ++
 ioctl.c |  4 +++
 time.c  | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 100 insertions(+)

diff --git a/defs.h b/defs.h
index 2158bf86..fd3a3800 100644
--- a/defs.h
+++ b/defs.h
@@ -476,6 +476,9 @@ extern int term_ioctl P((struct tcb *, long, long));
 extern int sock_ioctl P((struct tcb *, long, long));
 extern int proc_ioctl P((struct tcb *, int, int));
 extern int stream_ioctl P((struct tcb *, int, int));
+#ifdef LINUX
+extern int rtc_ioctl P((struct tcb *, long, long));
+#endif
 
 extern void tv_tv P((struct timeval *, int, int));
 extern int tv_nz P((struct timeval *));
diff --git a/ioctl.c b/ioctl.c
index 814caf0c..aba69c7f 100644
--- a/ioctl.c
+++ b/ioctl.c
@@ -149,6 +149,10 @@ long code, arg;
 	case 'S':
 		return stream_ioctl(tcp, code, arg);
 #endif /* HAVE_SYS_STREAM_H */
+#ifdef LINUX
+	case 'p':
+		return rtc_ioctl(tcp, code, arg);
+#endif
 	default:
 		break;
 	}
diff --git a/time.c b/time.c
index d273f0c8..5176f536 100644
--- a/time.c
+++ b/time.c
@@ -34,6 +34,8 @@
 #ifdef LINUX
 #include <linux/version.h>
 #include <sys/timex.h>
+#include <linux/ioctl.h>
+#include <linux/rtc.h>
 #endif /* LINUX */
 
 void
@@ -519,4 +521,95 @@ struct tcb *tcp;
 	}
 	return 0;
 }
+
+static void
+print_rtc(tcp, rt)
+struct tcb *tcp;
+const struct rtc_time *rt;
+{
+	tprintf("{tm_sec=%d, tm_min=%d, tm_hour=%d, "
+		"tm_mday=%d, tm_mon=%d, tm_year=%d, ",
+		rt->tm_sec, rt->tm_min, rt->tm_hour,
+		rt->tm_mday, rt->tm_mon, rt->tm_year);
+	if (!abbrev(tcp))
+		tprintf("tm_wday=%d, tm_yday=%d, tm_isdst=%d}",
+			rt->tm_wday, rt->tm_yday, rt->tm_isdst);
+	else
+		tprintf("...}");
+}
+
+int
+rtc_ioctl(tcp, code, arg)
+struct tcb *tcp;
+long code;
+long arg;
+{
+	switch (code) {
+	case RTC_ALM_SET:
+	case RTC_SET_TIME:
+		if (entering(tcp)) {
+			struct rtc_time rt;
+			if (umove(tcp, arg, &rt) < 0)
+				tprintf(", %#lx", arg);
+			else {
+				tprintf(", ");
+				print_rtc(tcp, &rt);
+			}
+		}
+		break;
+	case RTC_ALM_READ:
+	case RTC_RD_TIME:
+		if (exiting(tcp)) {
+			struct rtc_time rt;
+			if (syserror(tcp) || umove(tcp, arg, &rt) < 0)
+				tprintf(", %#lx", arg);
+			else {
+				tprintf(", ");
+				print_rtc(tcp, &rt);
+			}
+		}
+		break;
+	case RTC_IRQP_SET:
+	case RTC_EPOCH_SET:
+		if (entering(tcp))
+			tprintf(", %lu", arg);
+		break;
+	case RTC_IRQP_READ:
+	case RTC_EPOCH_READ:
+		if (exiting(tcp))
+			tprintf(", %lu", arg);
+		break;
+	case RTC_WKALM_SET:
+		if (entering(tcp)) {
+			struct rtc_wkalrm wk;
+			if (umove(tcp, arg, &wk) < 0)
+				tprintf(", %#lx", arg);
+			else {
+				tprintf(", {enabled=%d, pending=%d, ",
+					wk.enabled, wk.pending);
+				print_rtc(tcp, &wk.time);
+				tprintf("}");
+			}
+		}
+		break;
+	case RTC_WKALM_RD:
+		if (exiting(tcp)) {
+			struct rtc_wkalrm wk;
+			if (syserror(tcp) || umove(tcp, arg, &wk) < 0)
+				tprintf(", %#lx", arg);
+			else {
+				tprintf(", {enabled=%d, pending=%d, ",
+					wk.enabled, wk.pending);
+				print_rtc(tcp, &wk.time);
+				tprintf("}");
+			}
+		}
+		break;
+	default:
+		if (entering(tcp))
+			tprintf(", %#lx", arg);
+		break;
+	}
+	return 1;
+}
 #endif /* LINUX */
-- 
2.40.0