From: Ján Tomko <jtomko@redhat.com>
Date: Tue, 6 Mar 2018 12:56:31 +0000 (+0100)
Subject: openvz: pass sizeof to snprintf
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=d3b8a81ae6308cbdc33e43c715295d375d1d28e2;p=libvirt.git

openvz: pass sizeof to snprintf

The size argument accounts for the nul-byte to terminate
the string. Use sizeof and remove the pointless assignment.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
---

diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c
index 9bd73d85c4..ebdc3890ec 100644
--- a/src/openvz/openvz_driver.c
+++ b/src/openvz/openvz_driver.c
@@ -1355,8 +1355,7 @@ static int openvzDomainSetVcpusInternal(virDomainObjPtr vm,
     if (pcpus > 0 && pcpus < nvcpus)
         nvcpus = pcpus;
 
-    snprintf(str_vcpus, 31, "%d", nvcpus);
-    str_vcpus[31] = '\0';
+    snprintf(str_vcpus, sizeof(str_vcpus), "%d", nvcpus);
 
     openvzSetProgramSentinal(prog, vm->def->name);
     if (virRun(prog, NULL) < 0)