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authorRoy Marples <roy@marples.name>2008-01-05 19:25:55 +0000
committerRoy Marples <roy@marples.name>2008-01-05 19:25:55 +0000
commitac21d75300dabe83578e4373fcfd09d67c3a083b (patch)
treed5f8e2a16920add2277c79ff8a1b7e99ec2976df /src/rc/rc-update.c
parent112fbde453d55c49b7999d2e35496a8758aaa7b5 (diff)
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Add some .mk stubs to impersonate bsk .mk files to make writing our Makefiles easier. libeinfo, librc and rc now have their own seperate directories. More work is needed to tidy this up though.
Diffstat (limited to 'src/rc/rc-update.c')
-rw-r--r--src/rc/rc-update.c272
1 files changed, 272 insertions, 0 deletions
diff --git a/src/rc/rc-update.c b/src/rc/rc-update.c
new file mode 100644
index 0000000..4f07503
--- /dev/null
+++ b/src/rc/rc-update.c
@@ -0,0 +1,272 @@
+/*
+ rc-update
+ Manage init scripts and runlevels
+ */
+
+/*
+ * Copyright 2007 Roy Marples
+ * All rights reserved
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "builtins.h"
+#include "einfo.h"
+#include "rc.h"
+#include "rc-misc.h"
+#include "strlist.h"
+
+static const char *applet = NULL;
+
+/* Return the number of changes made:
+ * -1 = no changes (error)
+ * 0 = no changes (nothing to do)
+ * 1+ = number of runlevels updated
+ */
+static int add (const char *runlevel, const char *service)
+{
+ int retval = -1;
+
+ if (! rc_service_exists (service))
+ eerror ("%s: service `%s' does not exist", applet, service);
+ else if (rc_service_in_runlevel (service, runlevel)) {
+ ewarn ("%s: %s already installed in runlevel `%s'; skipping",
+ applet, service, runlevel);
+ retval = 0;
+ } else if (rc_service_add (runlevel, service)) {
+ einfo ("%s added to runlevel %s", service, runlevel);
+ retval = 1;
+ } else
+ eerror ("%s: failed to add service `%s' to runlevel `%s': %s",
+ applet, service, runlevel, strerror (errno));
+
+ return (retval);
+}
+
+static int delete (const char *runlevel, const char *service)
+{
+ int retval = -1;
+
+ errno = 0;
+ if (rc_service_delete (runlevel, service)) {
+ einfo ("%s removed from runlevel %s", service, runlevel);
+ return 1;
+ }
+
+ if (errno == ENOENT)
+ eerror ("%s: service `%s' is not in the runlevel `%s'",
+ applet, service, runlevel);
+ else
+ eerror ("%s: failed to remove service `%s' from runlevel `%s': %s",
+ applet, service, runlevel, strerror (errno));
+
+ return (retval);
+}
+
+static void show (char **runlevels, bool verbose)
+{
+ char *service;
+ char **services = rc_services_in_runlevel (NULL);
+ char *runlevel;
+ int i;
+ int j;
+
+ STRLIST_FOREACH (services, service, i) {
+ char **in = NULL;
+ bool inone = false;
+
+ STRLIST_FOREACH (runlevels, runlevel, j) {
+ if (rc_service_in_runlevel (service, runlevel)) {
+ rc_strlist_add (&in, runlevel);
+ inone = true;
+ } else {
+ char buffer[PATH_MAX];
+ memset (buffer, ' ', strlen (runlevel));
+ buffer[strlen (runlevel)] = 0;
+ rc_strlist_add (&in, buffer);
+ }
+ }
+
+ if (! inone && ! verbose)
+ continue;
+
+ printf (" %20s |", service);
+ STRLIST_FOREACH (in, runlevel, j)
+ printf (" %s", runlevel);
+ printf ("\n");
+ rc_strlist_free (in);
+ }
+
+ rc_strlist_free (services);
+}
+
+#include "_usage.h"
+#define getoptstring "ads" getoptstring_COMMON
+static struct option longopts[] = {
+ { "add", 0, NULL, 'a'},
+ { "delete", 0, NULL, 'd'},
+ { "show", 0, NULL, 's'},
+ longopts_COMMON
+};
+static const char * const longopts_help[] = {
+ "Add the init.d to runlevels",
+ "Delete init.d from runlevels",
+ "Show init.d's in runlevels",
+ longopts_help_COMMON
+};
+#include "_usage.c"
+
+#define DOADD (1 << 1)
+#define DODELETE (1 << 2)
+#define DOSHOW (1 << 3)
+
+int rc_update (int argc, char **argv)
+{
+ int i;
+ char *service = NULL;
+ char **runlevels = NULL;
+ char *runlevel;
+ int action = 0;
+ bool verbose = false;
+ int opt;
+ int retval = EXIT_FAILURE;
+
+ applet = basename_c (argv[0]);
+
+ while ((opt = getopt_long (argc, argv, getoptstring,
+ longopts, (int *) 0)) != -1)
+ {
+ switch (opt) {
+ case 'a':
+ action |= DOADD;
+ break;
+ case 'd':
+ action |= DODELETE;
+ break;
+ case 's':
+ action |= DOSHOW;
+ break;
+
+ case_RC_COMMON_GETOPT
+ }
+ }
+
+ verbose = rc_yesno (getenv ("EINFO_VERBOSE"));
+
+ if ((action & DOSHOW && action != DOSHOW) ||
+ (action & DOADD && action != DOADD) ||
+ (action & DODELETE && action != DODELETE))
+ eerrorx ("%s: cannot mix commands", applet);
+
+ /* We need to be backwards compatible */
+ if (! action) {
+ if (optind < argc) {
+ if (strcmp (argv[optind], "add") == 0)
+ action = DOADD;
+ else if (strcmp (argv[optind], "delete") == 0 ||
+ strcmp (argv[optind], "del") == 0)
+ action = DODELETE;
+ else if (strcmp (argv[optind], "show") == 0)
+ action = DOSHOW;
+ if (action)
+ optind++;
+ else
+ eerrorx ("%s: invalid command `%s'", applet, argv[optind]);
+ }
+ if (! action)
+ usage (EXIT_FAILURE);
+ }
+
+ if (optind >= argc) {
+ if (! action & DOSHOW)
+ eerrorx ("%s: no service specified", applet);
+ } else {
+ service = argv[optind];
+ optind++;
+
+ while (optind < argc)
+ if (rc_runlevel_exists (argv[optind]))
+ rc_strlist_add (&runlevels, argv[optind++]);
+ else {
+ rc_strlist_free (runlevels);
+ eerrorx ("%s: `%s' is not a valid runlevel", applet, argv[optind]);
+ }
+ }
+
+ retval = EXIT_SUCCESS;
+ if (action & DOSHOW) {
+ if (service)
+ rc_strlist_add (&runlevels, service);
+ if (! runlevels)
+ runlevels = rc_runlevel_list ();
+
+ show (runlevels, verbose);
+ } else {
+ if (! service)
+ eerror ("%s: no service specified", applet);
+ else {
+ int num_updated = 0;
+ int (*actfunc)(const char *, const char *);
+ int ret;
+
+ if (action & DOADD) {
+ actfunc = add;
+ } else if (action & DODELETE) {
+ actfunc = delete;
+ } else
+ eerrorx ("%s: invalid action", applet);
+
+ if (! runlevels)
+ rc_strlist_add (&runlevels, rc_runlevel_get ());
+
+ if (! runlevels)
+ eerrorx ("%s: no runlevels found", applet);
+
+ STRLIST_FOREACH (runlevels, runlevel, i) {
+ if (! rc_runlevel_exists (runlevel)) {
+ eerror ("%s: runlevel `%s' does not exist", applet, runlevel);
+ continue;
+ }
+
+ ret = actfunc (runlevel, service);
+ if (ret < 0)
+ retval = EXIT_FAILURE;
+ num_updated += ret;
+ }
+
+ if (retval == EXIT_SUCCESS && num_updated == 0 && action & DODELETE)
+ ewarnx ("%s: service `%s' not found in any of the specified runlevels", applet, service);
+ }
+ }
+
+ rc_strlist_free (runlevels);
+ return (retval);
+}