LU-12682 llite: fake symlink type of foreign file/dir

[fs/lustre-release.git] / lustre / tests / checkstat.c

diff --git a/lustre/tests/checkstat.c b/lustre/tests/checkstat.c
index b1e869e..37466e0 100644 (file)
--- a/lustre/tests/checkstat.c
+++ b/lustre/tests/checkstat.c
@@ -76,6 +76,40 @@ usage(char *argv0, int help)
        printf(" Exit status is 0 on success, 1 on failure\n");
 }
 
+/* using realpath() implies the paths must be resolved/exist
+ * so this will fail for dangling links
+ */
+int check_canonical(char *lname, char *checklink, int verbose)
+{
+       char *lname_canon;
+       char *checklink_canon;
+
+       lname_canon = realpath(lname, NULL);
+       if (lname_canon == NULL) {
+               if (verbose)
+                       printf("%s: can't canonicalize: %s\n",
+                              lname, strerror(errno));
+               return 1;
+       }
+
+       checklink_canon = realpath(checklink, NULL);
+       if (checklink_canon == NULL) {
+               if (verbose)
+                       printf("%s: can't canonicalize: %s\n",
+                              checklink, strerror(errno));
+               return 1;
+       }
+
+       if (strcmp(checklink_canon, lname_canon)) {
+               free(lname_canon);
+               free(checklink_canon);
+               return 1;
+       }
+       free(lname_canon);
+       free(checklink_canon);
+       return 0;
+}
+
 int
 main(int argc, char **argv)
 {
@@ -287,7 +321,12 @@ main(int argc, char **argv)
                        }
 
                        lname[rc] = 0;
-                       if (strcmp(checklink, lname)) {
+
+                       /* just in case, try to also match the canonicalized
+                        * paths
+                        */
+                       if (strcmp(checklink, lname) &&
+                           check_canonical(lname, checklink, verbose)) {
                                if (verbose)
                                        printf("%s is a link to %s and not %s\n",
                                               fname, lname, checklink);