From: minfrin <minfrin@users.noreply.github.com>
Date: Mon, 1 Nov 2021 09:54:59 +0000 (+0200)
Subject: Set the buffer size to the new maximum length for a digest.
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2fd4f344a736287d10ca3c0527b7e4eaee399dee;p=thirdparty%2Fcollectd.git

Set the buffer size to the new maximum length for a digest.
---

diff --git a/src/snmp.c b/src/snmp.c
index 401de7414..39bbab66a 100644
--- a/src/snmp.c
+++ b/src/snmp.c
@@ -36,6 +36,9 @@
 
 #include <fnmatch.h>
 
+/* SHA512 plus a trailing nul */
+#define MAX_DIGEST_NAME_LEN 7
+
 /*
  * Private data structes
  */
@@ -667,7 +670,7 @@ static int csnmp_config_add_host_collect(host_definition_t *host,
 
 static int csnmp_config_add_host_auth_protocol(host_definition_t *hd,
                                                oconfig_item_t *ci) {
-  char buffer[4];
+  char buffer[MAX_DIGEST_NAME_LEN];
   int status;
 
   status = cf_util_get_string_buffer(ci, buffer, sizeof(buffer));