From 3f376b0849a3d7e59ed23ac6dba2b729fc2c7589 Mon Sep 17 00:00:00 2001
From: dlg <dlg@openbsd.org>
Date: Wed, 14 Jun 2017 03:00:40 +0000
Subject: [PATCH] tweak sysctl_string and sysctl_tstring to use size_t for
 lengths, not int

theyre both wrappers around sysctl__string, which is where half the
fix is too.
---
 sys/kern/kern_sysctl.c | 11 ++++++-----
 sys/sys/sysctl.h       |  8 ++++----
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/sys/kern/kern_sysctl.c b/sys/kern/kern_sysctl.c
index 13024bf6ecb..16d1d279036 100644
--- a/sys/kern/kern_sysctl.c
+++ b/sys/kern/kern_sysctl.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kern_sysctl.c,v 1.327 2017/06/13 06:16:31 dlg Exp $	*/
+/*	$OpenBSD: kern_sysctl.c,v 1.328 2017/06/14 03:00:40 dlg Exp $	*/
 /*	$NetBSD: kern_sysctl.c,v 1.17 1996/05/20 17:49:05 mrg Exp $	*/
 
 /*-
@@ -928,23 +928,24 @@ sysctl_rdquad(void *oldp, size_t *oldlenp, void *newp, int64_t val)
  */
 int
 sysctl_string(void *oldp, size_t *oldlenp, void *newp, size_t newlen, char *str,
-    int maxlen)
+    size_t maxlen)
 {
 	return sysctl__string(oldp, oldlenp, newp, newlen, str, maxlen, 0);
 }
 
 int
 sysctl_tstring(void *oldp, size_t *oldlenp, void *newp, size_t newlen,
-    char *str, int maxlen)
+    char *str, size_t maxlen)
 {
 	return sysctl__string(oldp, oldlenp, newp, newlen, str, maxlen, 1);
 }
 
 int
 sysctl__string(void *oldp, size_t *oldlenp, void *newp, size_t newlen,
-    char *str, int maxlen, int trunc)
+    char *str, size_t maxlen, int trunc)
 {
-	int len, error = 0;
+	size_t len;
+	int error = 0;
 
 	len = strlen(str) + 1;
 	if (oldp && *oldlenp < len) {
diff --git a/sys/sys/sysctl.h b/sys/sys/sysctl.h
index 78155712a2e..ba0a03e416f 100644
--- a/sys/sys/sysctl.h
+++ b/sys/sys/sysctl.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: sysctl.h,v 1.173 2017/06/13 06:16:31 dlg Exp $	*/
+/*	$OpenBSD: sysctl.h,v 1.174 2017/06/14 03:00:40 dlg Exp $	*/
 /*	$NetBSD: sysctl.h,v 1.16 1996/04/09 20:55:36 cgd Exp $	*/
 
 /*
@@ -928,9 +928,9 @@ int sysctl_rdint(void *, size_t *, void *, int);
 int sysctl_int_arr(int **, int *, u_int, void *, size_t *, void *, size_t);
 int sysctl_quad(void *, size_t *, void *, size_t, int64_t *);
 int sysctl_rdquad(void *, size_t *, void *, int64_t);
-int sysctl_string(void *, size_t *, void *, size_t, char *, int);
-int sysctl_tstring(void *, size_t *, void *, size_t, char *, int);
-int sysctl__string(void *, size_t *, void *, size_t, char *, int, int);
+int sysctl_string(void *, size_t *, void *, size_t, char *, size_t);
+int sysctl_tstring(void *, size_t *, void *, size_t, char *, size_t);
+int sysctl__string(void *, size_t *, void *, size_t, char *, size_t, int);
 int sysctl_rdstring(void *, size_t *, void *, const char *);
 int sysctl_rdstruct(void *, size_t *, void *, const void *, size_t);
 int sysctl_struct(void *, size_t *, void *, size_t, void *, size_t);
-- 
2.20.1