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-rw-r--r--nscd/nscd.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/nscd/nscd.c b/nscd/nscd.c
index 8c61406..c4187f1 100644
--- a/nscd/nscd.c
+++ b/nscd/nscd.c
@@ -84,6 +84,8 @@ static const struct argp_option options[] =
{ "nthreads", 't', N_("NUMBER"), 0, N_("Start NUMBER threads") },
{ "shutdown", 'K', NULL, 0, N_("Shut the server down") },
{ "statistic", 'g', NULL, 0, N_("Print current configuration statistic") },
+ { "invalidate", 'i', N_("TABLE"), 0,
+ N_("Invalidate the specified cache") },
{ "secure", 'S', N_("TABLE,yes"), 0, N_("Use separate cache for each user")},
{ NULL, 0, NULL, 0, NULL }
};
@@ -210,6 +212,44 @@ parse_opt (int key, char *arg, struct argp_state *state)
receive_print_stats ();
/* Does not return. */
+ case 'i':
+ if (getuid () != 0)
+ error (EXIT_FAILURE, 0, _("Only root is allowed to use this option!"));
+ else
+ {
+ int sock = nscd_open_socket ();
+ request_header req;
+ ssize_t nbytes;
+
+ if (sock == -1)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (arg, "passwd") == 0)
+ req.key_len = sizeof "passwd";
+ else if (strcmp (arg, "group") == 0)
+ req.key_len = sizeof "group";
+ else if (strcmp (arg, "hosts") == 0)
+ req.key_len = sizeof "hosts";
+ else
+ return ARGP_ERR_UNKNOWN;
+
+ req.version = NSCD_VERSION;
+ req.type = INVALIDATE;
+ nbytes = TEMP_FAILURE_RETRY (write (sock, &req,
+ sizeof (request_header)));
+ if (nbytes != sizeof (request_header))
+ {
+ close (sock);
+ exit (EXIT_FAILURE);
+ }
+
+ nbytes = TEMP_FAILURE_RETRY (write (sock, (void *)arg, req.key_len));
+
+ close (sock);
+
+ exit (nbytes != req.key_len ? EXIT_FAILURE : EXIT_SUCCESS);
+ }
+
case 't':
nthreads = atol (arg);
break;