On 08/16/2011 03:25 PM, Eric Blake wrote:
On 08/16/2011 01:01 PM, Stefan Berger wrote:
Following the latter couldn't it just be handled during runtime
altogether?
That actually sounds better.
Stefan
Along those lines I propose this patch below:
Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxxxxxxx>
+int virFileIsLink(const char *linkpath)
+{
+ struct stat st;
+
+ if (lstat(linkpath, &st) < 0)
+ return -errno;
+
+ return S_ISLNK(st.st_mode);
S_ISLNK is only guaranteed to return non-zero for links, not 1. You
need to sanitize it:
return S_ISLNK(st.st_mode) != 0;
or
return !!S_ISLNK(st.st_mode);
+++ libvirt-acl/src/util/util.h
@@ -78,6 +78,8 @@ int virFileLinkPointsTo(const char *chec
int virFileResolveLink(const char *linkpath,
char **resultpath) ATTRIBUTE_RETURN_CHECK;
+int virFileIsLink(const char *linkpath) ATTRIBUTE_RETURN_CHECK;
Also add ATTRIBUTE_NONNULL(1), since lstat(NULL) is invalid.
ACK with those two fixes.
Pushed with those two fixes.
Stefan
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