2 files changed, 5 insertions(+), 2 deletions(-)

M port/devpipe.c
M port/sysproc.c

@@ 170,7 170,7 @@ pipeopen(Chan *c, int omode)
 	qunlock(p);
 	poperror();
 
-	c->mode = omode&~OTRUNC;
+	c->mode = openmode(omode);
 	c->flag |= COPEN;
 	c->offset = 0;
 	return c;

@@ 512,9 512,12 @@ sysdeath(ulong *arg)
 long
 syserrstr(ulong *arg)
 {
+	char tmp[ERRLEN];
+
 	validaddr(arg[0], ERRLEN, 1);
+	memmove(tmp, (char*)arg[0], ERRLEN);
 	memmove((char*)arg[0], u->error, ERRLEN);
-	strncpy(u->error, Enoerror, ERRLEN);
+	memmove(u->error, tmp, ERRLEN);
 	return 0;
 }