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nwfilter: fix NULL pointer check in virNWFilterSnoopReqNew

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This can't lead to a crash since virNWFilterSnoopReqNew is only called
with a static array as the argument, but if we check for NULL we should
do it right.
This commit is contained in:
Ján Tomko 2012-11-28 14:34:45 +01:00 committed by Osier Yang
parent d3337028f5
commit cb02215252
1 changed files with 2 additions and 2 deletions
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4
src/nwfilter/nwfilter_dhcpsnoop.c
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@ -573,12 +573,12 @@ virNWFilterSnoopReqNew(const char *ifkey)
{
virNWFilterSnoopReqPtr req;
if (ifkey == NULL || strlen(ifkey) != VIR_IFKEY_LEN - 1) {
if (ifkey == NULL || (ifkey && (strlen(ifkey) != VIR_IFKEY_LEN - 1))) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("virNWFilterSnoopReqNew called with invalid "
"key \"%s\" (%zu)"),
ifkey ? ifkey : "",
strlen(ifkey));
ifkey ? strlen(ifkey) : 0);
return NULL;
}