+ only_root:
+ nfs_error(_("%s: You are not permitted to unmount %s"),
+ progname, spec);
+ return 0;
+ }
+ if (hasmntopt(&mc->m, "users") == NULL) {
+ char *opt = hasmntopt(&mc->m, "user");
+ struct passwd *pw;
+ char *comma;
+ int len;
+ if (!opt)
+ goto only_root;
+ if (opt[4] != '=')
+ goto only_root;
+ comma = strchr(opt, ',');
+ if (comma)
+ len = comma - (opt + 5);
+ else
+ len = strlen(opt+5);
+ pw = getpwuid(getuid());
+ if (pw == NULL || strlen(pw->pw_name) != len
+ || strncmp(pw->pw_name, opt+5, len) != 0)
+ goto only_root;
+ }
+ }
+
+ ret = 0;
+ if (mc) {
+ if (!lazy)
+ _nfsumount(mc->m.mnt_fsname, mc->m.mnt_opts);
+ ret = del_mtab(mc->m.mnt_fsname, mc->m.mnt_dir);
+ } else if (*spec != '/') {
+ if (!lazy)
+ _nfsumount(spec, "tcp,v3");
+ } else
+ ret = del_mtab(NULL, spec);
+
+ return ret;
+}