From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Mon, 24 Feb 2014 16:28:43 +0000 (+0100)
Subject: sysctl: do not error out showing write-only data. Closes 6386
X-Git-Tag: 1_23_0~180
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=6554d03735e394c613ebacfe6b8d7b239e164310;p=oweals%2Fbusybox.git

sysctl: do not error out showing write-only data. Closes 6386

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---

diff --git a/procps/sysctl.c b/procps/sysctl.c
index c6a1de21d..f0883f054 100644
--- a/procps/sysctl.c
+++ b/procps/sysctl.c
@@ -129,6 +129,9 @@ static int sysctl_act_on_setting(char *setting)
 
 	if (fd < 0) {
 		switch (errno) {
+		case EACCES:
+			/* Happens for write-only settings, e.g. net.ipv6.route.flush */
+			goto end;
 		case ENOENT:
 			if (option_mask32 & FLAG_SHOW_KEY_ERRORS)
 				bb_error_msg("error: '%s' is an unknown key", outname);