From 45fb61b56bbd74f365b71e9e35bf953dc045833e Mon Sep 17 00:00:00 2001 Message-Id: <45fb61b56bbd74f365b71e9e35bf953dc045833e@dist-git> From: Jiri Denemark Date: Thu, 22 Nov 2018 16:28:56 +0100 Subject: [PATCH] virsh: Strip XML declaration when extracting CPU XMLs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since commit v4.3.0-336-gc84726fbdd all {hypervisor-,}cpu-{baseline,compare} commands use a generic vshExtractCPUDefXMLs helper for extracting individual CPU definitions from the provided input file. The helper wraps the input file in a element so that several independent elements can be easily parsed from the file. This works fine except when the file starts with XML declaration () because the XML declaration cannot be put inside any element. In fact it has to be at the very beginning of the XML document without any preceding white space characters. We can just simply skip the XML declaration. https://bugzilla.redhat.com/show_bug.cgi?id=1592737 Signed-off-by: Jiri Denemark Reviewed-by: Ján Tomko (cherry picked from commit fcd1c865e168bdb9763b19e790c15e80aa29be66) https://bugzilla.redhat.com/show_bug.cgi?id=1659048 Signed-off-by: Jiri Denemark Reviewed-by: Ján Tomko --- tools/virsh-host.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/tools/virsh-host.c b/tools/virsh-host.c index 16f504bafe..b7f86bdd91 100644 --- a/tools/virsh-host.c +++ b/tools/virsh-host.c @@ -1130,13 +1130,20 @@ vshExtractCPUDefXMLs(vshControl *ctl, xmlDocPtr xml = NULL; xmlXPathContextPtr ctxt = NULL; xmlNodePtr *nodes = NULL; + char *doc; size_t i; int n; if (virFileReadAll(xmlFile, VSH_MAX_XML_FILE, &buffer) < 0) goto error; - if (virAsprintf(&xmlStr, "%s", buffer) < 0) + /* Strip possible XML declaration */ + if (STRPREFIX(buffer, ""))) + doc += 2; + else + doc = buffer; + + if (virAsprintf(&xmlStr, "%s", doc) < 0) goto error; if (!(xml = virXMLParseStringCtxt(xmlStr, xmlFile, &ctxt))) -- 2.20.1