Re: [libvirt] [PATCH 1/2] qemu: implementing qemuAgentGetHostname() function.

This commit implements the function qemuAgentGetHostname() that uses the QEMU command 'guest-get-host-name' to retrieve the guest hostname of Virtual Machine. It is a possibility where QEMU-GA is running. Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com&gt; --- src/qemu/qemu_agent.c | 39 +++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_agent.h | 4 ++++ 2 files changed, 43 insertions(+) diff --git a/src/qemu/qemu_agent.c b/src/qemu/qemu_agent.c index bf08871f18..2c7f98378e 100644 --- a/src/qemu/qemu_agent.c +++ b/src/qemu/qemu_agent.c @@ -1682,6 +1682,45 @@ qemuAgentUpdateCPUInfo(unsigned int nvcpus, return 0; } +int +qemuAgentGetHostname(qemuAgentPtr mon, + char **hostname) +{ + int ret = -1; + virJSONValuePtr cmd; + virJSONValuePtr reply = NULL; + virJSONValuePtr data = NULL; + + cmd = qemuAgentMakeCommand("guest-get-host-name", + NULL); + + if (!cmd) + return ret; + + if (qemuAgentCommand(mon, cmd, &reply, true, + VIR_DOMAIN_QEMU_AGENT_COMMAND_BLOCK) < 0) + goto cleanup; + + if (!(data = virJSONValueObjectGet(reply, "return"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("malformed return value"));

+ goto cleanup; + } + + if (VIR_STRDUP(*hostname, + virJSONValueObjectGetString(data, "host-name")) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("'host-name' missing in reply of guest-get-host-name"));

+ goto cleanup; + }