return 1;
}
+/*
+ * Distinguish between permanent and temporary errors.
+ *
+ * Returns 0 if the passed-in error is temporary, thus the
+ * mount system call should be retried; returns one if the
+ * passed-in error is permanent, thus the mount system call
+ * should not be retried.
+ */
+static int is_permanent_error(int error)
+{
+ switch (error) {
+ case EACCES:
+ case ESTALE:
+ case ETIMEDOUT:
+ case ECONNREFUSED:
+ return 0; /* temporary */
+ default:
+ return 1; /* permanent */
+ }
+}
+
/*
* Reconstruct the mount option string based on a portmapper probe
* of the server. Returns one if the server's portmapper returned
options, fake, extra_opts);
}
+/*
+ * Handle "foreground" NFS mounts.
+ *
+ * Retry the mount request for as long as the 'retry=' option says.
+ *
+ * Returns a valid mount command exit code.
+ */
+static int nfsmount_fg(const char *spec, const char *node,
+ const char *type, int flags,
+ struct mount_options *options, int fake,
+ char **extra_opts)
+{
+ unsigned int secs = 1;
+ time_t timeout = time(NULL);
+ char *retry;
+
+ timeout += 60 * 2; /* default: 2 minutes */
+ retry = po_get(options, "retry");
+ if (retry)
+ timeout += 60 * atoi(retry);
+
+ if (verbose)
+ printf(_("%s: timeout set for %s"),
+ progname, ctime(&timeout));
+
+ for (;;) {
+ if (try_mount(spec, node, type, flags,
+ options, fake, extra_opts))
+ return EX_SUCCESS;
+
+ if (is_permanent_error(errno))
+ break;
+
+ if (time(NULL) > timeout) {
+ errno = ETIMEDOUT;
+ break;
+ }
+
+ if (errno != ETIMEDOUT) {
+ if (sleep(secs))
+ break;
+ secs <<= 1;
+ if (secs > 10)
+ secs = 10;
+ }
+ };
+
+ mount_error(spec, node, errno);
+ return EX_FAIL;
+}
+
/**
* nfsmount_string - Mount an NFS file system using C string options
* @spec: C string specifying remote share to mount ("hostname:path")