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LXC: Check the existence of dir before resolving symlinks

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If a dir does not exist, raise an immediate error in logs
rather than letting virFileResolveAllLinks fail, since this
gives better error reporting to the user.

Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
This commit is contained in:
Chen Hanxiao 2013-09-23 11:22:17 +01:00 committed by Daniel P. Berrange
parent 0e618c6aff
commit 9a08e2cbc6
1 changed files with 8 additions and 0 deletions
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8
src/lxc/lxc_container.c
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@ -1696,6 +1696,7 @@ static int lxcContainerResolveSymlinks(virDomainDefPtr vmDef)
{
char *newroot;
size_t i;
char ebuf[1024];
VIR_DEBUG("Resolving symlinks");
@ -1703,6 +1704,13 @@ static int lxcContainerResolveSymlinks(virDomainDefPtr vmDef)
virDomainFSDefPtr fs = vmDef->fss[i];
if (!fs->src)
continue;
if (access(fs->src, F_OK)) {
VIR_DEBUG("Failed to access '%s': %s", fs->src,
virStrerror(errno, ebuf, sizeof(ebuf)));
return -1;
}
VIR_DEBUG("Resolving '%s'", fs->src);
if (virFileResolveAllLinks(fs->src, &newroot) < 0) {
VIR_DEBUG("Failed to resolve symlink at %s", fs->src);