From: Philip Homburg <philip@cs.vu.nl>
Date: Mon, 10 Jul 2006 12:42:31 +0000 (+0000)
Subject: Use safecopy version to get log messages from TTY.
X-Git-Tag: v3.1.3~260
X-Git-Url: http://zhaoyanbai.com/repos/Bv9ARM.ch12.html?a=commitdiff_plain;h=9392742cc4a7569c4b38ee722573ff5ce756ce17;p=minix.git

Use safecopy version to get log messages from TTY.
---

diff --git a/drivers/log/Makefile b/drivers/log/Makefile
index 94b82c5ae..7606e63b3 100644
--- a/drivers/log/Makefile
+++ b/drivers/log/Makefile
@@ -23,7 +23,7 @@ LIBDRIVER = $d/libdriver/driver.o
 all build:	$(DRIVER)
 $(DRIVER):	$(OBJ) $(LIBDRIVER)
 	$(CC) -o $@ $(LDFLAGS) $(OBJ) $(LIBDRIVER) $(LIBS)
-	install -S 4kb $(DRIVER)
+	install -S 8kb $(DRIVER)
 
 $(LIBDRIVER): 
 	cd $d/libdriver && $(MAKE) 
diff --git a/drivers/log/diag.c b/drivers/log/diag.c
index 7a1cce914..3e72a59f9 100644
--- a/drivers/log/diag.c
+++ b/drivers/log/diag.c
@@ -32,12 +32,23 @@ message *m;					/* notification message */
 
   if (m->m_source == TTY_PROC_NR)
   {
+	cp_grant_id_t gid;
 	message mess;
 
+	gid= cpf_grant_direct(TTY_PROC_NR, (vir_bytes)&kmess, sizeof(kmess),
+		CPF_WRITE);
+	if (gid == -1)
+	{
+		report("LOG","cpf_grant_direct failed for TTY", errno);
+		return EDONTREPLY;
+	}
+
 	/* Ask TTY driver for log output */
-	mess.GETKM_PTR= (char *) &kmess;
-	mess.m_type = GET_KMESS;
+	mess.GETKM_GRANT= gid;
+	mess.m_type = GET_KMESS_S;
 	r= sendrec(TTY_PROC_NR, &mess);
+	cpf_revoke(gid);
+
 	if (r == OK) r= mess.m_type;
 	if (r != OK)
 	{