freebsd-dev/usr.sbin/tzsetup/tzmenu.c
Joerg Wunsch 2d71a1f121 Another round of fixes:
. Replace my NIH-suffering code to detect the number of lines on
  the terminal by the curses variable LINES.

. Fix the selection code for countries with more than one screenful
  of locations.  The very few people living in America/US/Pacific
  now won't be charged for Indiana any longer... :)

. Removed the gross code that copied over the timezone file to
  /etc/localtime, and create a symlink now instead.
1996-03-31 09:55:02 +00:00

190 lines
4.3 KiB
C

/*
* Copyright 1995 Massachusetts Institute of Technology
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that both the above copyright notice and this
* permission notice appear in all copies, that both the above
* copyright notice and this permission notice appear in all
* supporting documentation, and that the name of M.I.T. not be used
* in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. M.I.T. makes
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied
* warranty.
*
* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
* SHALL M.I.T. 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.
*/
static const char rcsid[] =
"$Id: tzmenu.c,v 1.3 1996/03/22 22:22:40 joerg Exp $";
#include <stdio.h>
#include <ncurses.h>
#include <dialog.h>
#include <limits.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include "tzsetup.h"
static const char *regmenu[] = {
"1", "Africa",
"2", "Asia",
"3", "Atlantic Ocean islands",
"4", "Australia",
"5", "Europe (including Russia)",
"6", "Indian Ocean islands",
"7", "North and South America",
"8", "Pacific Ocean islands"
};
static struct region *regions[] = {
&Africa,
&Asia,
&Atlantic,
&Australia,
&Europe,
&Indian,
&America,
&Pacific
};
#define NREGIONS 8
#define DEFAULT_NROWS 24 /* default height of tty */
static const char *country_menu(const struct region *, const char *);
const char *
tzmenu(void)
{
unsigned char rbuf[_POSIX2_LINE_MAX];
int rv;
int item = 0;
int sc = 0;
const char *res;
struct winsize win;
char *cp;
while(1) {
dialog_clear();
rv = dialog_menu("Timezone Selector",
"Select a region",
NREGIONS + 6,
78,
NREGIONS,
NREGIONS,
(unsigned char **)regmenu,
rbuf,
&item,
&sc);
if (rv != 0) {
return 0;
}
res = country_menu(regions[item],
regmenu[2 * item + 1]);
if (res)
return res;
}
}
static const char *location_menu(const struct country *, const char *);
static const char *
country_menu(const struct region *reg, const char *name)
{
unsigned char rbuf[_POSIX2_LINE_MAX];
unsigned char title[_POSIX2_LINE_MAX];
int rv;
int item = 0;
int sc = 0;
const char *res;
snprintf(title, sizeof title, "Timezone Selector - %s", name);
while(1) {
dialog_clear();
rv = dialog_menu(title, "Select a country",
reg->r_count > LINES - 6 ?
LINES : reg->r_count + 6,
78,
reg->r_count > LINES - 6 ?
LINES - 6 : reg->r_count,
reg->r_count,
(unsigned char **)reg->r_menu,
rbuf,
&item,
&sc);
if (rv != 0) {
return 0;
}
sscanf(rbuf, "%d", &rv);
res = location_menu(reg->r_ctrylist[rv - 1],
reg->r_menu[2 * (rv - 1) + 1]);
if (res)
return res;
}
}
static const char *
location_menu(const struct country *ctry, const char *name)
{
unsigned char rbuf[_POSIX2_LINE_MAX];
unsigned char title[_POSIX2_LINE_MAX];
int rv;
int item = 0;
int sc = 0;
const char *res;
snprintf(title, sizeof title, "Timezone Selector - %s", name);
while(1) {
dialog_clear();
rv = dialog_menu(title, "Select a location",
ctry->c_count > LINES - 6?
LINES : ctry->c_count + 6,
78,
ctry->c_count > LINES - 6?
LINES - 6 : ctry->c_count,
ctry->c_count,
(unsigned char **)ctry->c_menu,
rbuf,
&item,
&sc);
if (rv != 0) {
return 0;
}
sscanf(rbuf, "%d", &rv);
rv = setzone(ctry->c_filelist[rv - 1]);
if (rv == 0)
return ctry->c_filelist[rv - 1];
}
}