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virNetworkDNSHostDefParseXML: Refactor parsing

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Use 'virXMLNodeGetSubelementList' instead of looping through XML nodes
and modernize the code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Peter Krempa 2023-04-11 22:34:59 +02:00
parent 24b769a25b
commit d0ee4e39bf
1 changed files with 46 additions and 48 deletions
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94
src/conf/network_conf.c
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@ -655,63 +655,61 @@ virNetworkDNSHostDefParseXML(const char *networkName,
virNetworkDNSHostDef *def,
bool partialOkay)
{
xmlNodePtr cur;
g_autofree char *ip = NULL;
g_autofree xmlNodePtr *hostnameNodes = NULL;
size_t nhostnameNodes = virXMLNodeGetSubelementList(node, "hostname", &hostnameNodes);
size_t i;
g_auto(GStrv) hostnames = NULL;
g_autofree char *ip = virXMLPropString(node, "ip");
if (!(ip = virXMLPropString(node, "ip")) && !partialOkay) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing IP address in network '%1$s' DNS HOST record"),
networkName);
goto error;
}
if (nhostnameNodes > 0) {
hostnames = g_new0(char *, nhostnameNodes + 1);
if (ip && (virSocketAddrParse(&def->ip, ip, AF_UNSPEC) < 0)) {
virReportError(VIR_ERR_XML_DETAIL,
_("Invalid IP address in network '%1$s' DNS HOST record"),
networkName);
goto error;
}
for (i = 0; i < nhostnameNodes; i++) {
if (!(hostnames[i] = virXMLNodeContentString(hostnameNodes[i])))
return -1;
cur = node->children;
while (cur != NULL) {
if (cur->type == XML_ELEMENT_NODE &&
virXMLNodeNameEqual(cur, "hostname")) {
if (cur->children != NULL) {
g_autofree char *name = virXMLNodeContentString(cur);
if (!name)
goto error;
if (!name[0]) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing hostname in network '%1$s' DNS HOST record"),
networkName);
goto error;
}
VIR_APPEND_ELEMENT(def->names, def->nnames, name);
}
if (*hostnames[i] == '\0') {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing hostname in network '%1$s' DNS HOST record"),
networkName);
return -1;
}
}
} else {
if (!partialOkay) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing hostname in network '%1$s' DNS HOST record"),
networkName);
return -1;
}
cur = cur->next;
}
if (def->nnames == 0 && !partialOkay) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing hostname in network '%1$s' DNS HOST record"),
networkName);
goto error;
}
if (!VIR_SOCKET_ADDR_VALID(&def->ip) && def->nnames == 0) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing ip and hostname in network '%1$s' DNS HOST record"),
networkName);
goto error;
if (ip) {
if (virSocketAddrParse(&def->ip, ip, AF_UNSPEC) < 0) {
virReportError(VIR_ERR_XML_DETAIL,
_("Invalid IP address in network '%1$s' DNS HOST record"),
networkName);
return -1;
}
} else {
if (!partialOkay) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing IP address in network '%1$s' DNS HOST record"),
networkName);
return -1;
}
if (nhostnameNodes == 0) {
virReportError(VIR_ERR_XML_DETAIL,
_("Missing ip and hostname in network '%1$s' DNS HOST record"),
networkName);
return -1;
}
}
def->names = g_steal_pointer(&hostnames);
def->nnames = nhostnameNodes;
return 0;
error:
virNetworkDNSHostDefClear(def);
return -1;
}