[19/31] petitboot: Add generic CUI program

--- a/configure.ac
+++ b/configure.ac
@@ -35,9 +35,7 @@  AC_ARG_ENABLE([ps3],
 	[],
 	[enable_ps3=check])
 
-AS_IF([test "x$enable_ps3" != xno],
-	[AC_SUBST([ENABLE_PS3], ["y"])],
-	[AC_SUBST([ENABLE_PS3], ["n"])])
+AS_IF([test "x$enable_ps3" != xno], [AC_SUBST([ENABLE_PS3], ["y"])], [])
 
 AC_ARG_WITH([twin],
 	[AS_HELP_STRING([--with-twin],
--- a/rules.mk
+++ b/rules.mk
@@ -68,6 +68,7 @@  client_objs = $(lib_objs) $(ui_common_ob
 all: $(uis) $(daemons) $(utils)
 
 # ncurses cui
+pb_cui_objs-y$(ENABLE_PS3) += ui/ncurses/pb-cui.o
 pb_cui_objs-$(ENABLE_PS3) += ui/ncurses/ps3-cui.o ui/common/ps3.o
 pb_cui_ldflags-$(ENABLE_PS3) += -lps3-utils
 
--- /dev/null
+++ b/ui/ncurses/pb-cui.c
@@ -0,0 +1,288 @@ 
+/*
+ * 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:%s\n", __func__, cod->dev->name, cod->opt->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->scr.frame.title = talloc_strdup(m, "Petitboot");
+	m->scr.frame.help = talloc_strdup(m,
+		"ESC=exit, Enter=accept, E,e=edit");
+	m->scr.frame.status = talloc_strdup(m, "Welcome to Petitboot");
+
+	i = pmenu_item_init(m, 0, "Exit to Shell",
+		"Exit petitboot and return to a shell prompt");
+	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;
+}