mountd: further split up lookup_export

More trivial cleanup (no change in functionality) to group logical
operations together into a single function.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
index e32290b72be60c5e368c67d4a71059bf3b201f5c..e3403901ebf543cb58059b0cf726408a407138a7 100644 (file)
--- a/utils/mountd/cache.c
+++ b/utils/mountd/cache.c
@@ -614,6 +614,34 @@ static int dump_to_cache(FILE *f, char *domain, char *path, struct exportent *ex
        return qword_eol(f);
 }
 
+static int is_subdirectory(char *subpath, char *path)
+{
+       int l = strlen(path);
+
+       return strcmp(subpath, path) == 0
+               || (strncmp(subpath, path, l) == 0 && path[l] == '/'
+                   && is_mountpoint(path));
+}
+
+static int path_matches(nfs_export *exp, char *path)
+{
+       if (exp->m_export.e_flags & NFSEXP_CROSSMOUNT)
+               return is_subdirectory(path, exp->m_export.e_path);
+       return strcmp(path, exp->m_export.e_path) == 0;
+}
+
+static int client_matches(nfs_export *exp, char *dom, struct hostent *he)
+{
+       if (use_ipaddr)
+               return client_check(exp->m_client, he);
+       return client_member(dom, exp->m_client->m_hostname);
+}
+
+static int export_matches(nfs_export *exp, char *dom, char *path, struct hostent *he)
+{
+       return path_matches(exp, path) && client_matches(exp, dom, he);
+}
+
 static nfs_export *lookup_export(char *dom, char *path, struct hostent *he)
 {
        nfs_export *exp;
@@ -621,28 +649,10 @@ static nfs_export *lookup_export(char *dom, char *path, struct hostent *he)
        int found_type = 0;
        int i;
 
-       found = lookup_export(dom, path, he);
-       /* now find flags for this export point in this domain */
        for (i=0 ; i < MCL_MAXTYPES; i++) {
                for (exp = exportlist[i].p_head; exp; exp = exp->m_next) {
-                       if (!use_ipaddr && !client_member(dom, exp->m_client->m_hostname))
+                       if (!export_matches(exp, dom, path, he))
                                continue;
-                       if (exp->m_export.e_flags & NFSEXP_CROSSMOUNT) {
-                               /* if path is a mountpoint below e_path, then OK */
-                               int l = strlen(exp->m_export.e_path);
-                               if (strcmp(path, exp->m_export.e_path) == 0 ||
-                                   (strncmp(path, exp->m_export.e_path, l) == 0 &&
-                                    path[l] == '/' &&
-                                    is_mountpoint(path)))
-                                       /* ok */;
-                               else
-                                       continue;
-                       } else if (strcmp(path, exp->m_export.e_path) != 0)
-                               continue;
-                       if (use_ipaddr) {
-                               if (!client_check(exp->m_client, he))
-                                       continue;
-                       }
                        if (!found) {
                                found = exp;
                                found_type = i;