Re: [libvirt-users] [PATCH 1/2] LXC: hostdev: introduce lxcContainerSetupHostdevCapsMakePath
On Tue, Jul 09, 2013 at 11:20:35AM +0800, Gao feng wrote:
This helper function is used to create parent directroy for
the hostdev which will be added to the container. if the
parent directory of this hostdev doesn't exist, the mknod of
the hostdev will fail.
Signed-off-by: Gao feng <gaofeng(a)cn.fujitsu.com>
---
src/lxc/lxc_container.c | 17 +++++++++++++++++
src/lxc/lxc_container.h | 2 ++
2 files changed, 19 insertions(+)
diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index c8420db..b954107 100644
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -1544,6 +1544,23 @@ cleanup:
}
+int lxcContainerSetupHostdevCapsMakePath(char *dev)
+{
+ int ret = 0;
+ char *dir = NULL;
+
+ if ((dir = strrchr(dev, '/'))) {
+ *dir = '\0';
Modifying arguments that are passed into a function is bad
practice, so I'm changing this to strdup the arg thus:
+int lxcContainerSetupHostdevCapsMakePath(const char *dev)
+{
+ int ret = -1;
+ char *dir, *tmp;
+
+ if (VIR_STRDUP(dir, dev) < 0)
+ return -1;
+
+ if ((tmp = strrchr(dir, '/'))) {
+ *tmp = '\0';
+ if (virFileMakePath(dir) < 0) {
+ virReportSystemError(errno,
+ _("Failed to create directory for '%s' dev
'%s'"),
+ dir, dev);
+ goto cleanup;
+ }
+ }
+
+ ret = 0;
+
+cleanup:
+ VIR_FREE(dir);
+ return ret;
+}
Daniel
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