From bf33a1c097c2356dfee214234f966ab123f392cc Mon Sep 17 00:00:00 2001
From: Arne Welzel <arne.welzel@gmail.com>
Date: Sat, 22 Sep 2012 20:02:14 +0000
Subject: [PATCH] libsys: add sys_safememset()

---
 include/minix/com.h         |  8 ++++----
 include/minix/syslib.h      |  3 +++
 lib/libsys/Makefile         |  1 +
 lib/libsys/sys_safememset.c | 19 +++++++++++++++++++
 4 files changed, 27 insertions(+), 4 deletions(-)
 create mode 100644 lib/libsys/sys_safememset.c

diff --git a/include/minix/com.h b/include/minix/com.h
index b44dccffa..2ab581de6 100644
--- a/include/minix/com.h
+++ b/include/minix/com.h
@@ -560,15 +560,15 @@
 #define SCP_SEG_OBSOLETE m2_i2	/* my own segment */
 #define SCP_GID		m2_i3	/* grant id */
 #define SCP_OFFSET	m2_l1	/* offset within grant */
-#define	SCP_ADDRESS	m2_p1	/* my own address */
-#define	SCP_BYTES	m2_l2	/* bytes from offset */
+#define SCP_ADDRESS	m2_p1	/* my own address */
+#define SCP_BYTES	m2_l2	/* bytes from offset */
 
 /* SYS_SAFEMEMSET */
 #define SMS_DST		m2_i1	/* dst endpoint */
 #define SMS_GID		m2_i3	/* grant id */
 #define SMS_OFFSET	m2_l1	/* offset within grant */
-#define	SMS_BYTES	m2_l2	/* bytes from offset */
-#define SMS_PATTERN     m2_i2	/* memset() pattern */
+#define SMS_BYTES	m2_l2	/* bytes from offset */
+#define SMS_PATTERN	m2_i2	/* memset() pattern */
 
 /* Field names for SYS_VSAFECOPY* */
 #define VSCP_VEC_ADDR	m2_p1	/* start of vector */
diff --git a/include/minix/syslib.h b/include/minix/syslib.h
index 7614a0259..ad2c0a4ae 100644
--- a/include/minix/syslib.h
+++ b/include/minix/syslib.h
@@ -147,6 +147,9 @@ int sys_safecopyto(endpoint_t dest, cp_grant_id_t grant, vir_bytes
 	grant_offset, vir_bytes my_address, size_t bytes);
 int sys_vsafecopy(struct vscp_vec *copyvec, int elements);
 
+int sys_safememset(endpoint_t source, cp_grant_id_t grant, vir_bytes
+	grant_offset, int pattern, size_t bytes);
+
 int sys_memset(endpoint_t who, unsigned long pattern,
 	phys_bytes base, phys_bytes bytes);
 
diff --git a/lib/libsys/Makefile b/lib/libsys/Makefile
index ff8693eca..59670d2e4 100644
--- a/lib/libsys/Makefile
+++ b/lib/libsys/Makefile
@@ -53,6 +53,7 @@ SRCS=  \
 	sys_runctl.c \
 	sys_safecopy.c \
 	sys_safemap.c \
+	sys_safememset.c \
 	sys_schedctl.c \
 	sys_schedule.c \
 	sys_setalarm.c \
diff --git a/lib/libsys/sys_safememset.c b/lib/libsys/sys_safememset.c
new file mode 100644
index 000000000..8032a20bb
--- /dev/null
+++ b/lib/libsys/sys_safememset.c
@@ -0,0 +1,19 @@
+#include "syslib.h"
+
+#include <minix/safecopies.h>
+
+int sys_safememset(endpoint_t dst_e, cp_grant_id_t gr_id,
+	vir_bytes offset, int pattern, size_t len)
+{
+/* memset() a block of data using pattern */
+
+  message copy_mess;
+
+  copy_mess.SMS_DST = dst_e;
+  copy_mess.SMS_GID = gr_id;
+  copy_mess.SMS_OFFSET = (long) offset;
+  copy_mess.SMS_PATTERN = pattern;
+  copy_mess.SMS_BYTES = (long) len;
+
+  return(_kernel_call(SYS_SAFEMEMSET, &copy_mess));
+}
-- 
2.44.0