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/*
* Petitboot generic ncurses bootloader UI
*
* Copyright (C) 2009 Sony Computer Entertainment Inc.
* Copyright 2009 Sony Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#define _GNU_SOURCE
#include <errno.h>
#include <getopt.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include "log/log.h"
#include "talloc/talloc.h"
#include "waiter/waiter.h"
#include "ui/common/discover-client.h"
#include "nc-cui.h"
static void print_version(void)
{
printf("pb-cui (" PACKAGE_NAME ") " PACKAGE_VERSION "\n");
}
static void print_usage(void)
{
print_version();
printf(
"Usage: pb-cui [-h, --help] [-l, --log log-file] [-V, --version]\n");
}
/**
* enum opt_value - Tri-state options variables.
*/
enum opt_value {opt_undef = 0, opt_yes, opt_no};
/**
* struct opts - Values from command line options.
*/
struct opts {
enum opt_value show_help;
const char *log_file;
enum opt_value show_version;
};
/**
* opts_parse - Parse the command line options.
*/
static int opts_parse(struct opts *opts, int argc, char *argv[])
{
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{"log", required_argument, NULL, 'l'},
{"version", no_argument, NULL, 'V'},
{ NULL, 0, NULL, 0},
};
static const char short_options[] = "hl:V";
static const struct opts default_values = {
.log_file = "pb-cui.log",
};
*opts = default_values;
while (1) {
int c = getopt_long(argc, argv, short_options, long_options,
NULL);
if (c == EOF)
break;
switch (c) {
case 'h':
opts->show_help = opt_yes;
break;
case 'l':
opts->log_file = optarg;
break;
case 'V':
opts->show_version = opt_yes;
break;
default:
opts->show_help = opt_yes;
return -1;
}
}
return 0;
}
/**
* struct pb_cui - Main cui program instance.
* @mm: Main menu.
* @svm: Set video mode menu.
*/
struct pb_cui {
struct pmenu *mm;
struct cui *cui;
};
static struct pb_cui *pb_from_cui(struct cui *cui)
{
struct pb_cui *pb;
assert(cui->c_sig == pb_cui_sig);
pb = cui->platform_info;
assert(pb->cui->c_sig == pb_cui_sig);
return pb;
}
/**
* pb_kexec_cb - The kexec callback.
*/
static int pb_kexec_cb(struct cui *cui, struct cui_opt_data *cod)
{
struct pb_cui *pb = pb_from_cui(cui);
pb_log("%s: %s\n", __func__, cod->name);
assert(pb->cui->current == &pb->cui->main->scr);
return pb_run_kexec(cod->kd);
}
/**
* pb_mm_init - Setup the main menu instance.
*/
static struct pmenu *pb_mm_init(struct pb_cui *pb_cui)
{
int result;
struct pmenu *m;
struct pmenu_item *i;
m = pmenu_init(pb_cui->cui, 1, cui_on_exit);
if (!m) {
pb_log("%s: failed\n", __func__);
return NULL;
}
m->on_open = cui_on_open;
m->scr.frame.title = talloc_strdup(m, "Petitboot");
m->scr.frame.help = talloc_strdup(m,
"ESC=exit, Enter=accept, e=edit, o=open");
m->scr.frame.status = talloc_strdup(m, "Welcome to Petitboot");
i = pmenu_item_init(m, 0, "Exit to Shell");
i->on_execute = pmenu_exit_cb;
result = pmenu_setup(m);
if (result) {
pb_log("%s:%d: pmenu_setup failed: %s\n", __func__, __LINE__,
strerror(errno));
goto fail_setup;
}
menu_opts_off(m->ncm, O_SHOWDESC);
set_menu_mark(m->ncm, " *");
set_current_item(m->ncm, i->nci);
return m;
fail_setup:
talloc_free(m);
return NULL;
}
static struct pb_cui pb;
static void sig_handler(int signum)
{
DBGS("%d\n", signum);
switch (signum) {
case SIGALRM:
if (pb.cui)
ui_timer_sigalrm(&pb.cui->timer);
break;
case SIGWINCH:
if (pb.cui)
cui_resize(pb.cui);
break;
default:
assert(0 && "unknown sig");
/* fall through */
case SIGINT:
case SIGHUP:
case SIGTERM:
if (pb.cui)
cui_abort(pb.cui);
break;
}
}
/**
* main - cui bootloader main routine.
*/
int main(int argc, char *argv[])
{
static struct sigaction sa;
static struct opts opts;
int result;
int cui_result;
FILE *log;
result = opts_parse(&opts, argc, argv);
if (result) {
print_usage();
return EXIT_FAILURE;
}
if (opts.show_help == opt_yes) {
print_usage();
return EXIT_SUCCESS;
}
if (opts.show_version == opt_yes) {
print_version();
return EXIT_SUCCESS;
}
log = fopen(opts.log_file, "a");
assert(log);
pb_log_set_stream(log);
#if defined(DEBUG)
pb_log_always_flush(1);
#endif
pb_log("--- pb-cui ---\n");
sa.sa_handler = sig_handler;
result = sigaction(SIGALRM, &sa, NULL);
result += sigaction(SIGHUP, &sa, NULL);
result += sigaction(SIGINT, &sa, NULL);
result += sigaction(SIGTERM, &sa, NULL);
result += sigaction(SIGWINCH, &sa, NULL);
if (result) {
pb_log("%s sigaction failed.\n", __func__);
return EXIT_FAILURE;
}
pb.cui = cui_init(&pb, pb_kexec_cb);
if (!pb.cui)
return EXIT_FAILURE;
pb.mm = pb_mm_init(&pb);
ui_timer_disable(&pb.cui->timer);
cui_result = cui_run(pb.cui, pb.mm, 0);
pmenu_delete(pb.mm);
talloc_free(pb.cui);
pb_log("--- end ---\n");
return cui_result ? EXIT_FAILURE : EXIT_SUCCESS;
}
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