| Current Path : /usr/src/usr.sbin/tzsetup/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //usr/src/usr.sbin/tzsetup/tzsetup.c |
/*
* Copyright 1996 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.
*/
/*
* Second attempt at a `tzmenu' program, using the separate description
* files provided in newer tzdata releases.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/usr.sbin/tzsetup/tzsetup.c 227142 2011-11-06 07:35:08Z dougb $");
#include <dialog.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <sys/fcntl.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/stat.h>
#define _PATH_ZONETAB "/usr/share/zoneinfo/zone.tab"
#define _PATH_ISO3166 "/usr/share/misc/iso3166"
#define _PATH_ZONEINFO "/usr/share/zoneinfo"
#define _PATH_LOCALTIME "/etc/localtime"
#define _PATH_DB "/var/db/zoneinfo"
#define _PATH_WALL_CMOS_CLOCK "/etc/wall_cmos_clock"
static char path_zonetab[MAXPATHLEN], path_iso3166[MAXPATHLEN],
path_zoneinfo[MAXPATHLEN], path_localtime[MAXPATHLEN],
path_db[MAXPATHLEN], path_wall_cmos_clock[MAXPATHLEN];
static int reallydoit = 1;
static int reinstall = 0;
static int usedialog = 1;
static char *chrootenv = NULL;
static void usage(void);
static int confirm_zone(const char *filename);
static int continent_country_menu(dialogMenuItem *);
static int install_zoneinfo_file(const char *zoneinfo_file);
static int set_zone_multi(dialogMenuItem *);
static int set_zone_whole_country(dialogMenuItem *);
static int set_zone_menu(dialogMenuItem *);
static int set_zone_utc(void);
struct continent {
dialogMenuItem *menu;
int nitems;
int ch;
int sc;
};
static struct continent africa, america, antarctica, arctic, asia, atlantic;
static struct continent australia, europe, indian, pacific, utc;
static struct continent_names {
const char *name;
struct continent *continent;
} continent_names[] = {
{ "Africa", &africa },
{ "America", &america },
{ "Antarctica", &antarctica },
{ "Arctic", &arctic },
{ "Asia", &asia },
{ "Atlantic", &atlantic },
{ "Australia", &australia },
{ "Europe", &europe },
{ "Indian", &indian },
{ "Pacific", &pacific },
{ "UTC", &utc }
};
static struct continent_items {
char prompt[2];
char title[30];
} continent_items[] = {
{ "1", "Africa" },
{ "2", "America -- North and South" },
{ "3", "Antarctica" },
{ "4", "Arctic Ocean" },
{ "5", "Asia" },
{ "6", "Atlantic Ocean" },
{ "7", "Australia" },
{ "8", "Europe" },
{ "9", "Indian Ocean" },
{ "0", "Pacific Ocean" },
{ "a", "UTC" }
};
#define NCONTINENTS \
(int)((sizeof(continent_items)) / (sizeof(continent_items[0])))
static dialogMenuItem continents[NCONTINENTS];
#define OCEANP(x) ((x) == 3 || (x) == 5 || (x) == 8 || (x) == 9)
static int
continent_country_menu(dialogMenuItem *continent)
{
char title[64], prompt[64];
struct continent *contp = continent->data;
int isocean = OCEANP(continent - continents);
int menulen;
int rv;
if (strcmp(continent->title, "UTC") == 0)
return set_zone_utc();
/* Short cut -- if there's only one country, don't post a menu. */
if (contp->nitems == 1)
return (contp->menu[0].fire(&contp->menu[0]));
/* It's amazing how much good grammar really matters... */
if (!isocean) {
snprintf(title, sizeof(title), "Countries in %s",
continent->title);
snprintf(prompt, sizeof(prompt), "Select a country or region");
} else {
snprintf(title, sizeof(title), "Islands and groups in the %s",
continent->title);
snprintf(prompt, sizeof(prompt), "Select an island or group");
}
menulen = contp->nitems < 16 ? contp->nitems : 16;
rv = dialog_menu(title, prompt, -1, -1, menulen, -contp->nitems,
contp->menu, 0, &contp->ch, &contp->sc);
if (rv == 0)
return (DITEM_LEAVE_MENU);
return (DITEM_RECREATE);
}
static struct continent *
find_continent(const char *name)
{
int i;
for (i = 0; i < NCONTINENTS; i++)
if (strcmp(name, continent_names[i].name) == 0)
return (continent_names[i].continent);
return (0);
}
struct country {
char *name;
char *tlc;
int nzones;
char *filename; /* use iff nzones < 0 */
struct continent *continent; /* use iff nzones < 0 */
TAILQ_HEAD(, zone) zones; /* use iff nzones > 0 */
dialogMenuItem *submenu; /* use iff nzones > 0 */
};
struct zone {
TAILQ_ENTRY(zone) link;
char *descr;
char *filename;
struct continent *continent;
};
/*
* This is the easiest organization... we use ISO 3166 country codes,
* of the two-letter variety, so we just size this array to suit.
* Beats worrying about dynamic allocation.
*/
#define NCOUNTRIES (26 * 26)
static struct country countries[NCOUNTRIES];
#define CODE2INT(s) ((s[0] - 'A') * 26 + (s[1] - 'A'))
/*
* Read the ISO 3166 country code database in _PATH_ISO3166
* (/usr/share/misc/iso3166). On error, exit via err(3).
*/
static void
read_iso3166_table(void)
{
FILE *fp;
struct country *cp;
size_t len;
char *s, *t, *name;
int lineno;
fp = fopen(path_iso3166, "r");
if (!fp)
err(1, "%s", path_iso3166);
lineno = 0;
while ((s = fgetln(fp, &len)) != 0) {
lineno++;
if (s[len - 1] != '\n')
errx(1, "%s:%d: invalid format", path_iso3166, lineno);
s[len - 1] = '\0';
if (s[0] == '#' || strspn(s, " \t") == len - 1)
continue;
/* Isolate the two-letter code. */
t = strsep(&s, "\t");
if (t == 0 || strlen(t) != 2)
errx(1, "%s:%d: invalid format", path_iso3166, lineno);
if (t[0] < 'A' || t[0] > 'Z' || t[1] < 'A' || t[1] > 'Z')
errx(1, "%s:%d: invalid code `%s'", path_iso3166,
lineno, t);
/* Now skip past the three-letter and numeric codes. */
name = strsep(&s, "\t"); /* 3-let */
if (name == 0 || strlen(name) != 3)
errx(1, "%s:%d: invalid format", path_iso3166, lineno);
name = strsep(&s, "\t"); /* numeric */
if (name == 0 || strlen(name) != 3)
errx(1, "%s:%d: invalid format", path_iso3166, lineno);
name = s;
cp = &countries[CODE2INT(t)];
if (cp->name)
errx(1, "%s:%d: country code `%s' multiply defined: %s",
path_iso3166, lineno, t, cp->name);
cp->name = strdup(name);
if (cp->name == NULL)
errx(1, "malloc failed");
cp->tlc = strdup(t);
if (cp->tlc == NULL)
errx(1, "malloc failed");
}
fclose(fp);
}
static void
add_zone_to_country(int lineno, const char *tlc, const char *descr,
const char *file, struct continent *cont)
{
struct zone *zp;
struct country *cp;
if (tlc[0] < 'A' || tlc[0] > 'Z' || tlc[1] < 'A' || tlc[1] > 'Z')
errx(1, "%s:%d: country code `%s' invalid", path_zonetab,
lineno, tlc);
cp = &countries[CODE2INT(tlc)];
if (cp->name == 0)
errx(1, "%s:%d: country code `%s' unknown", path_zonetab,
lineno, tlc);
if (descr) {
if (cp->nzones < 0)
errx(1, "%s:%d: conflicting zone definition",
path_zonetab, lineno);
zp = malloc(sizeof(*zp));
if (zp == 0)
errx(1, "malloc(%zu)", sizeof(*zp));
if (cp->nzones == 0)
TAILQ_INIT(&cp->zones);
zp->descr = strdup(descr);
if (zp->descr == NULL)
errx(1, "malloc failed");
zp->filename = strdup(file);
if (zp->filename == NULL)
errx(1, "malloc failed");
zp->continent = cont;
TAILQ_INSERT_TAIL(&cp->zones, zp, link);
cp->nzones++;
} else {
if (cp->nzones > 0)
errx(1, "%s:%d: zone must have description",
path_zonetab, lineno);
if (cp->nzones < 0)
errx(1, "%s:%d: zone multiply defined",
path_zonetab, lineno);
cp->nzones = -1;
cp->filename = strdup(file);
if (cp->filename == NULL)
errx(1, "malloc failed");
cp->continent = cont;
}
}
/*
* This comparison function intentionally sorts all of the null-named
* ``countries''---i.e., the codes that don't correspond to a real
* country---to the end. Everything else is lexical by country name.
*/
static int
compare_countries(const void *xa, const void *xb)
{
const struct country *a = xa, *b = xb;
if (a->name == 0 && b->name == 0)
return (0);
if (a->name == 0 && b->name != 0)
return (1);
if (b->name == 0)
return (-1);
return (strcmp(a->name, b->name));
}
/*
* This must be done AFTER all zone descriptions are read, since it breaks
* CODE2INT().
*/
static void
sort_countries(void)
{
qsort(countries, NCOUNTRIES, sizeof(countries[0]), compare_countries);
}
static void
read_zones(void)
{
char contbuf[16];
FILE *fp;
struct continent *cont;
size_t len;
char *line, *tlc, *coord, *file, *descr, *p;
int lineno;
fp = fopen(path_zonetab, "r");
if (!fp)
err(1, "%s", path_zonetab);
lineno = 0;
while ((line = fgetln(fp, &len)) != 0) {
lineno++;
if (line[len - 1] != '\n')
errx(1, "%s:%d: invalid format", path_zonetab, lineno);
line[len - 1] = '\0';
if (line[0] == '#')
continue;
tlc = strsep(&line, "\t");
if (strlen(tlc) != 2)
errx(1, "%s:%d: invalid country code `%s'",
path_zonetab, lineno, tlc);
coord = strsep(&line, "\t"); /* Unused */
file = strsep(&line, "\t");
p = strchr(file, '/');
if (p == 0)
errx(1, "%s:%d: invalid zone name `%s'", path_zonetab,
lineno, file);
contbuf[0] = '\0';
strncat(contbuf, file, p - file);
cont = find_continent(contbuf);
if (!cont)
errx(1, "%s:%d: invalid region `%s'", path_zonetab,
lineno, contbuf);
descr = (line != NULL && *line != '\0') ? line : NULL;
add_zone_to_country(lineno, tlc, descr, file, cont);
}
fclose(fp);
}
static void
make_menus(void)
{
struct country *cp;
struct zone *zp, *zp2;
struct continent *cont;
dialogMenuItem *dmi;
int i;
/*
* First, count up all the countries in each continent/ocean.
* Be careful to count those countries which have multiple zones
* only once for each. NB: some countries are in multiple
* continents/oceans.
*/
for (cp = countries; cp->name; cp++) {
if (cp->nzones == 0)
continue;
if (cp->nzones < 0) {
cp->continent->nitems++;
} else {
TAILQ_FOREACH(zp, &cp->zones, link) {
cont = zp->continent;
for (zp2 = TAILQ_FIRST(&cp->zones);
zp2->continent != cont;
zp2 = TAILQ_NEXT(zp2, link))
;
if (zp2 == zp)
zp->continent->nitems++;
}
}
}
/*
* Now allocate memory for the country menus and initialize
* continent menus. We set nitems back to zero so that we can
* use it for counting again when we actually build the menus.
*/
memset(continents, 0, sizeof(continents));
for (i = 0; i < NCONTINENTS; i++) {
continent_names[i].continent->menu =
malloc(sizeof(dialogMenuItem) *
continent_names[i].continent->nitems);
if (continent_names[i].continent->menu == 0)
errx(1, "malloc for continent menu");
continent_names[i].continent->nitems = 0;
continents[i].prompt = continent_items[i].prompt;
continents[i].title = continent_items[i].title;
continents[i].fire = continent_country_menu;
continents[i].data = continent_names[i].continent;
}
/*
* Now that memory is allocated, create the menu items for
* each continent. For multiple-zone countries, also create
* the country's zone submenu.
*/
for (cp = countries; cp->name; cp++) {
if (cp->nzones == 0)
continue;
if (cp->nzones < 0) {
dmi = &cp->continent->menu[cp->continent->nitems];
memset(dmi, 0, sizeof(*dmi));
asprintf(&dmi->prompt, "%d", ++cp->continent->nitems);
dmi->title = cp->name;
dmi->checked = 0;
dmi->fire = set_zone_whole_country;
dmi->selected = 0;
dmi->data = cp;
} else {
cp->submenu = malloc(cp->nzones * sizeof(*dmi));
if (cp->submenu == 0)
errx(1, "malloc for submenu");
cp->nzones = 0;
TAILQ_FOREACH(zp, &cp->zones, link) {
cont = zp->continent;
dmi = &cp->submenu[cp->nzones];
memset(dmi, 0, sizeof(*dmi));
asprintf(&dmi->prompt, "%d", ++cp->nzones);
dmi->title = zp->descr;
dmi->checked = 0;
dmi->fire = set_zone_multi;
dmi->selected = 0;
dmi->data = zp;
for (zp2 = TAILQ_FIRST(&cp->zones);
zp2->continent != cont;
zp2 = TAILQ_NEXT(zp2, link))
;
if (zp2 != zp)
continue;
dmi = &cont->menu[cont->nitems];
memset(dmi, 0, sizeof(*dmi));
asprintf(&dmi->prompt, "%d", ++cont->nitems);
dmi->title = cp->name;
dmi->checked = 0;
dmi->fire = set_zone_menu;
dmi->selected = 0;
dmi->data = cp;
}
}
}
}
static int
set_zone_menu(dialogMenuItem *dmi)
{
char title[64], prompt[64];
struct country *cp = dmi->data;
int menulen;
int rv;
snprintf(title, sizeof(title), "%s Time Zones", cp->name);
snprintf(prompt, sizeof(prompt),
"Select a zone which observes the same time as your locality.");
menulen = cp->nzones < 16 ? cp->nzones : 16;
rv = dialog_menu(title, prompt, -1, -1, menulen, -cp->nzones,
cp->submenu, 0, 0, 0);
if (rv != 0)
return (DITEM_RECREATE);
return (DITEM_LEAVE_MENU);
}
int
set_zone_utc(void)
{
if (!confirm_zone(NULL))
return (DITEM_FAILURE | DITEM_RECREATE);
return (install_zoneinfo_file(NULL));
}
static int
install_zoneinfo_file(const char *zoneinfo_file)
{
char buf[1024];
char title[64], prompt[64];
struct stat sb;
ssize_t len;
int fd1, fd2, copymode;
if (lstat(path_localtime, &sb) < 0) {
/* Nothing there yet... */
copymode = 1;
} else if (S_ISLNK(sb.st_mode))
copymode = 0;
else
copymode = 1;
#ifdef VERBOSE
if (copymode)
snprintf(prompt, sizeof(prompt),
"Copying %s to %s", zoneinfo_file, path_localtime);
else
snprintf(prompt, sizeof(prompt),
"Creating symbolic link %s to %s",
path_localtime,
zoneinfo_file == NULL ? "(UTC)" : zoneinfo_file);
if (usedialog)
dialog_notify(prompt);
else
fprintf(stderr, "%s\n", prompt);
#endif
if (reallydoit) {
if (zoneinfo_file == NULL) {
if (unlink(path_localtime) < 0 && errno != ENOENT) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Could not delete %s: %s", path_localtime,
strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
if (unlink(path_db) < 0 && errno != ENOENT) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Could not delete %s: %s", path_db,
strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
return (DITEM_LEAVE_MENU);
}
if (copymode) {
fd1 = open(zoneinfo_file, O_RDONLY, 0);
if (fd1 < 0) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Could not open %s: %s", zoneinfo_file,
strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
unlink(path_localtime);
fd2 = open(path_localtime, O_CREAT | O_EXCL | O_WRONLY,
S_IRUSR | S_IRGRP | S_IROTH);
if (fd2 < 0) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Could not open %s: %s",
path_localtime, strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
while ((len = read(fd1, buf, sizeof(buf))) > 0)
if ((len = write(fd2, buf, len)) < 0)
break;
if (len == -1) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Error copying %s to %s %s", zoneinfo_file,
path_localtime, strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
/* Better to leave none than a corrupt one. */
unlink(path_localtime);
return (DITEM_FAILURE | DITEM_RECREATE);
}
close(fd1);
close(fd2);
} else {
if (access(zoneinfo_file, R_OK) != 0) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Cannot access %s: %s", zoneinfo_file,
strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
unlink(path_localtime);
if (symlink(zoneinfo_file, path_localtime) < 0) {
snprintf(title, sizeof(title), "Error");
snprintf(prompt, sizeof(prompt),
"Cannot create symbolic link %s to %s: %s",
path_localtime, zoneinfo_file,
strerror(errno));
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
}
}
#ifdef VERBOSE
snprintf(title, sizeof(title), "Done");
if (copymode)
snprintf(prompt, sizeof(prompt),
"Copied timezone file from %s to %s", zoneinfo_file,
path_localtime);
else
snprintf(prompt, sizeof(prompt),
"Created symbolic link from %s to %s", zoneinfo_file,
path_localtime);
if (usedialog)
dialog_mesgbox(title, prompt, 8, 72);
else
fprintf(stderr, "%s\n", prompt);
#endif
return (DITEM_LEAVE_MENU);
}
static int
install_zoneinfo(const char *zoneinfo)
{
int rv;
FILE *f;
char path_zoneinfo_file[MAXPATHLEN];
sprintf(path_zoneinfo_file, "%s/%s", path_zoneinfo, zoneinfo);
rv = install_zoneinfo_file(path_zoneinfo_file);
/* Save knowledge for later */
if ((f = fopen(path_db, "w")) != NULL) {
fprintf(f, "%s\n", zoneinfo);
fclose(f);
}
return (rv);
}
static int
confirm_zone(const char *filename)
{
char title[64], prompt[64];
time_t t = time(0);
struct tm *tm;
int rv;
setenv("TZ", filename == NULL ? "" : filename, 1);
tzset();
tm = localtime(&t);
snprintf(title, sizeof(title), "Confirmation");
snprintf(prompt, sizeof(prompt),
"Does the abbreviation `%s' look reasonable?", tm->tm_zone);
rv = !dialog_yesno(title, prompt, 5, 72);
return (rv);
}
static int
set_zone_multi(dialogMenuItem *dmi)
{
struct zone *zp = dmi->data;
int rv;
if (!confirm_zone(zp->filename))
return (DITEM_FAILURE | DITEM_RECREATE);
rv = install_zoneinfo(zp->filename);
return (rv);
}
static int
set_zone_whole_country(dialogMenuItem *dmi)
{
struct country *cp = dmi->data;
int rv;
if (!confirm_zone(cp->filename))
return (DITEM_FAILURE | DITEM_RECREATE);
rv = install_zoneinfo(cp->filename);
return (rv);
}
static void
usage(void)
{
fprintf(stderr, "usage: tzsetup [-nrs] [-C chroot_directory]"
" [zoneinfo_file | zoneinfo_name]\n");
exit(1);
}
#if defined(__sparc64__)
#define DIALOG_UTC dialog_yesno
#else
#define DIALOG_UTC dialog_noyes
#endif
int
main(int argc, char **argv)
{
char title[64], prompt[128];
int c, fd, rv, skiputc;
skiputc = 0;
while ((c = getopt(argc, argv, "C:nrs")) != -1) {
switch(c) {
case 'C':
chrootenv = optarg;
break;
case 'n':
reallydoit = 0;
break;
case 'r':
reinstall = 1;
usedialog = 0;
break;
case 's':
skiputc = 1;
break;
default:
usage();
}
}
if (argc - optind > 1)
usage();
if (chrootenv == NULL) {
strcpy(path_zonetab, _PATH_ZONETAB);
strcpy(path_iso3166, _PATH_ISO3166);
strcpy(path_zoneinfo, _PATH_ZONEINFO);
strcpy(path_localtime, _PATH_LOCALTIME);
strcpy(path_db, _PATH_DB);
strcpy(path_wall_cmos_clock, _PATH_WALL_CMOS_CLOCK);
} else {
sprintf(path_zonetab, "%s/%s", chrootenv, _PATH_ZONETAB);
sprintf(path_iso3166, "%s/%s", chrootenv, _PATH_ISO3166);
sprintf(path_zoneinfo, "%s/%s", chrootenv, _PATH_ZONEINFO);
sprintf(path_localtime, "%s/%s", chrootenv, _PATH_LOCALTIME);
sprintf(path_db, "%s/%s", chrootenv, _PATH_DB);
sprintf(path_wall_cmos_clock, "%s/%s", chrootenv,
_PATH_WALL_CMOS_CLOCK);
}
/* Override the user-supplied umask. */
(void)umask(S_IWGRP | S_IWOTH);
read_iso3166_table();
read_zones();
sort_countries();
make_menus();
if (reinstall == 1) {
FILE *f;
char zonefile[MAXPATHLEN];
char path_db[MAXPATHLEN];
zonefile[0] = '\0';
path_db[0] = '\0';
if (chrootenv != NULL) {
sprintf(zonefile, "%s/", chrootenv);
sprintf(path_db, "%s/", chrootenv);
}
strcat(zonefile, _PATH_ZONEINFO);
strcat(zonefile, "/");
strcat(path_db, _PATH_DB);
if ((f = fopen(path_db, "r")) != NULL) {
if (fgets(zonefile, sizeof(zonefile), f) != NULL) {
zonefile[sizeof(zonefile) - 1] = 0;
if (strlen(zonefile) > 0) {
zonefile[strlen(zonefile) - 1] = 0;
rv = install_zoneinfo(zonefile);
exit(rv & ~DITEM_LEAVE_MENU);
}
errx(1, "Error reading %s.\n", path_db);
}
fclose(f);
errx(1,
"Unable to determine earlier installed zoneinfo "
"file. Check %s", path_db);
}
errx(1, "Cannot open %s for reading. Does it exist?", path_db);
}
/*
* If the arguments on the command-line do not specify a file,
* then interpret it as a zoneinfo name
*/
if (optind == argc - 1) {
struct stat sb;
if (stat(argv[optind], &sb) != 0) {
usedialog = 0;
rv = install_zoneinfo(argv[optind]);
exit(rv & ~DITEM_LEAVE_MENU);
}
/* FALLTHROUGH */
}
init_dialog();
if (skiputc == 0) {
snprintf(title, sizeof(title),
"Select local or UTC (Greenwich Mean Time) clock");
snprintf(prompt, sizeof(prompt),
"Is this machine's CMOS clock set to UTC? "
"If it is set to local time,\n"
"or you don't know, please choose NO here!");
if (!DIALOG_UTC(title, prompt, 7, 72)) {
if (reallydoit)
unlink(path_wall_cmos_clock);
} else {
if (reallydoit) {
fd = open(path_wall_cmos_clock,
O_WRONLY | O_CREAT | O_TRUNC,
S_IRUSR | S_IRGRP | S_IROTH);
if (fd < 0) {
end_dialog();
err(1, "create %s",
path_wall_cmos_clock);
}
close(fd);
}
}
dialog_clear_norefresh();
}
if (optind == argc - 1) {
snprintf(title, sizeof(title), "Default timezone provided");
snprintf(prompt, sizeof(prompt),
"\nUse the default `%s' zone?", argv[optind]);
if (!dialog_yesno(title, prompt, 7, 72)) {
rv = install_zoneinfo_file(argv[optind]);
dialog_clear();
end_dialog();
exit(rv & ~DITEM_LEAVE_MENU);
}
dialog_clear_norefresh();
}
snprintf(title, sizeof(title), "Time Zone Selector");
snprintf(prompt, sizeof(prompt), "Select a region");
dialog_menu(title, prompt, -1, -1, NCONTINENTS, -NCONTINENTS,
continents, 0, NULL, NULL);
dialog_clear();
end_dialog();
return (0);
}