[libvirt] [PATCH 3/7] screenshot: Implementing the public API
---
src/libvirt.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 77 insertions(+), 0 deletions(-)
diff --git a/src/libvirt.c b/src/libvirt.c
index 8be18d4..9f8f2e6 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -2445,6 +2445,83 @@ error:
}
/**
+ * virDomainScreenshot:
+ * @domain: a domain object
+ * @to: path for the image
+ * @flags: extra flags, currently unused
+ *
+ * Take a screenshot of current domain console and store it
+ * as image under given path. The image format is hypervisor
+ * specific.
+ *
+ * Returns 0 in case of success and -1 in case of failure.
+ */
+int
+virDomainScreenshot(virDomainPtr domain, const char *to, int flags)
+{
+ char filepath[4096];
+ virConnectPtr conn;
+
+ VIR_DOMAIN_DEBUG(domain, "to=%s, flags=%d", to, flags);
+
+ virResetLastError();
+
+ if (!VIR_IS_CONNECTED_DOMAIN(domain)) {
+ virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+ virDispatchError(NULL);
+ return -1;
+ }
+ if (domain->conn->flags & VIR_CONNECT_RO) {
+ virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+ goto error;
+ }
+ conn = domain->conn;
+ if (to == NULL) {
+ virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
+ goto error;
+ }
+
+ /*
+ * We must absolutize the file path as the save is done out of process
+ * TODO: check for URI when libxml2 is linked in.
+ */
+ if(to[0] != '/') {
+ unsigned int len, t;
+
+ t = strlen(to);
+ if (getcwd(filepath, sizeof(filepath) - (t + 3)) == NULL) {
+ virLibDomainError(VIR_ERR_SYSTEM_ERROR,
+ _("cannot get current directory"));
+ goto error;
+ }
+ len = strlen(filepath);
+ /* that should be covered by getcwd() semantic, but be 100% sure */
+ if (len > sizeof(filepath) - (t + 3)) {
+ virLibDomainError(VIR_ERR_INTERNAL_ERROR,
+ _("path too long"));
+ goto error;
+ }
+ filepath[len] = '/';
+ strcpy(&filepath[len + 1], to);
+ to = &filepath[0];
+ }
+
+ if (conn->driver->domainScreenshot) {
+ int ret;
+ ret = conn->driver->domainScreenshot (domain, to, flags);
+ if (ret < 0)
+ goto error;
+ return ret;
+ }
+
+ virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+ virDispatchError(domain->conn);
+ return -1;
+}
+
+/**
* virDomainShutdown:
* @domain: a domain object
*
--
1.7.4