/*
* 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.
*/
/*
* When making changes to parser code, run baseline target, check that there are
* no unintended changes and commit updated file.
*/
#include <sys/cdefs.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>
#include <sys/sysctl.h>
#ifdef HAVE_BSDDIALOG
#include <bsddialog.h>
#include <locale.h>
#endif
#define _PATH_ZONETAB "/usr/share/zoneinfo/zone1970.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"
#ifdef PATH_MAX
#define SILLY_BUFFER_SIZE (2 * PATH_MAX)
#else
#warning "Somebody needs to fix this to dynamically size this buffer."
#define SILLY_BUFFER_SIZE 2048
#endif
/* special return codes for `fire' actions */
#define DITEM_FAILURE 1
/* flags - returned in upper 16 bits of return status */
#define DITEM_LEAVE_MENU (1 << 16)
#define DITEM_RECREATE (1 << 18)
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 char *chrootenv = NULL;
static void usage(void);
static int install_zoneinfo(const char *zoneinfo);
static void message_zoneinfo_file(const char *title, char *prompt);
static int install_zoneinfo_file(const char *zoneinfo_file);
#ifdef HAVE_BSDDIALOG
static struct bsddialog_conf conf;
/* for use in describing more exotic behaviors */
typedef struct dialogMenuItem {
char *prompt;
char *title;
int (*fire)(struct dialogMenuItem *self);
void *data;
} dialogMenuItem;
static int
xdialog_menu(char *title, char *cprompt, int item_no, dialogMenuItem *ditems)
{
int i, result, menurows, choice = 0;
struct bsddialog_menuitem *listitems;
/* initialize list items */
listitems = calloc(item_no + 1, sizeof(struct bsddialog_menuitem));
if (listitems == NULL)
errx(1, "Failed to allocate memory in xdialog_menu");
for (i = 0; i < item_no; i++) {
listitems[i].prefix = "";
listitems[i].depth = 0;
listitems[i].bottomdesc = "";
listitems[i].on = false;
listitems[i].name = ditems[i].prompt;
listitems[i].desc = ditems[i].title;
}
again:
conf.title = title;
menurows = item_no < 16 ? item_no : 16;
result = bsddialog_menu(&conf, cprompt, BSDDIALOG_AUTOSIZE,
BSDDIALOG_AUTOSIZE, menurows, item_no, listitems, &choice);
switch (result) {
case BSDDIALOG_ESC:
result = -1;
break;
case BSDDIALOG_OK:
if (ditems[choice].fire != NULL) {
int status;
status = ditems[choice].fire(ditems + choice);
if (status & DITEM_RECREATE) {
goto again;
}
}
result = 0;
break;
case BSDDIALOG_CANCEL:
default:
result = 1;
break;
}
free(listitems);
return (result);
}
static int usedialog = 1;
static int confirm_zone(const char *filename);
static int continent_country_menu(dialogMenuItem *);
static int set_zone(dialogMenuItem *);
static int set_zone_menu(dialogMenuItem *);
static int set_zone_utc(void);
struct continent {
dialogMenuItem *menu;
int nitems;
};
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[3];
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" },
{ "10", "Pacific Ocean" },
{ "11", "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 rv;
if (strcmp(continent->title, "UTC") == 0)
return (set_zone_utc());
/* 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");
}
rv = xdialog_menu(title, prompt, contp->nitems, contp->menu);
return (rv == 0 ? DITEM_LEAVE_MENU : DITEM_RECREATE);
}
static struct continent *
find_continent(int lineno, const char *name)
{
char *cname, *cp;
int i;
/*
* Both normal (the ones in zone filename, e.g. Europe/Andorra) and
* override (e.g. Atlantic/) entries should contain '/'.
*/
cp = strdup(name);
if (cp == NULL)
err(1, "strdup");
cname = strsep(&cp, "/");
if (cp == NULL)
errx(1, "%s:%d: invalid entry `%s'", path_zonetab, lineno,
cname);
for (i = 0; i < NCONTINENTS; i++)
if (strcmp(cname, continent_names[i].name) == 0) {
free(cname);
return (continent_names[i].continent);
}
errx(1, "%s:%d: continent `%s' unknown", path_zonetab, lineno, cname);
}
static const char *
find_continent_name(struct continent *cont)
{
int i;
for (i = 0; i < NCONTINENTS; i++)
if (cont == continent_names[i].continent)
return (continent_names[i].name);
return ("Unknown");
}
struct country {
char *name;
char *tlc;
int nzones;
struct continent *override; /* continent override */
struct continent *alternate; /* extra continent */
TAILQ_HEAD(, zone) zones;
dialogMenuItem *submenu;
};
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)) != NULL) {
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 == NULL || 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 == NULL || strlen(name) != 3)
errx(1, "%s:%d: invalid format", path_iso3166, lineno);
name = strsep(&s, "\t"); /* numeric */
if (name == NULL || 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 struct country *
find_country(int lineno, const char *tlc)
{
struct country *cp;
if (strlen(tlc) != 2 ||
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 == NULL)
errx(1, "%s:%d: country code `%s' unknown", path_zonetab,
lineno, tlc);
return (cp);
}
static void
add_cont_to_country(struct country *cp, struct continent *cont)
{
struct zone *zp;
TAILQ_FOREACH(zp, &cp->zones, link) {
if (zp->continent == cont)
return;
}
cp->alternate = cont;
}
static void
add_zone_to_country(int lineno, struct country *cp, const char *descr,
const char *file, struct continent *cont)
{
struct zone *zp;
zp = malloc(sizeof(*zp));
if (zp == NULL)
errx(1, "malloc(%zu)", sizeof(*zp));
if (cp->nzones == 0)
TAILQ_INIT(&cp->zones);
if (descr != NULL) {
zp->descr = strdup(descr);
if (zp->descr == NULL)
errx(1, "malloc failed");
} else {
zp->descr = NULL;
}
zp->filename = strdup(file);
if (zp->filename == NULL)
errx(1, "malloc failed");
zp->continent = cp->override != NULL ? cp->override : cont;
TAILQ_INSERT_TAIL(&cp->zones, zp, link);
cp->nzones++;
}
/*
* 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)
{
FILE *fp;
struct continent *cont;
struct country *cp;
size_t len;
char *line, *country_list, *tlc, *file, *descr;
char *p, *q;
int lineno;
int pass = 1;
fp = fopen(path_zonetab, "r");
if (!fp)
err(1, "%s", path_zonetab);
again:
lineno = 0;
while ((line = fgetln(fp, &len)) != NULL) {
lineno++;
if (line[len - 1] != '\n')
errx(1, "%s:%d: invalid format", path_zonetab, lineno);
line[len - 1] = '\0';
switch (pass)
{
case 1:
/*
* First pass: collect overrides, only looking for
* single continent ones for the moment.
*
* zone1970.tab introduced continent overrides in the
* following format:
*
* #@TLC[,TLC...]<tab>CONTINENT/[,CONTINENT/...]
*/
if (strncmp(line, "#@", strlen("#@")) != 0)
continue;
line += 2;
country_list = strsep(&line, "\t");
/* Skip multi-continent overrides */
if (strchr(line, ',') != NULL)
continue;
cont = find_continent(lineno, line);
/* Parse and store overrides */
while (country_list != NULL) {
tlc = strsep(&country_list, ",");
cp = find_country(lineno, tlc);
cp->override = cont;
}
break;
case 2:
/* Second pass: parse actual data */
if (line[0] == '#')
continue;
country_list = strsep(&line, "\t");
/* coord = */ strsep(&line, "\t"); /* Unused */
file = strsep(&line, "\t");
cont = find_continent(lineno, file);
descr = (line != NULL && *line != '\0') ? line : NULL;
while (country_list != NULL) {
tlc = strsep(&country_list, ",");
cp = find_country(lineno, tlc);
add_zone_to_country(lineno, cp, descr, file,
cont);
}
break;
case 3:
/* Third pass: collect multi-continent overrides */
if (strncmp(line, "#@", strlen("#@")) != 0)
continue;
line += 2;
country_list = strsep(&line, "\t");
/* Skip single-continent overrides */
if (strchr(line, ',') == NULL)
continue;
while (line != NULL) {
cont = find_continent(lineno, line);
p = q = strdup(country_list);
if (p == NULL)
errx(1, "malloc failed");
while (q != NULL) {
tlc = strsep(&q, ",");
cp = find_country(lineno, tlc);
add_cont_to_country(cp, cont);
}
free(p);
strsep(&line, ",");
}
break;
}
}
if (pass++ < 3) {
errno = 0;
rewind(fp);
if (errno != 0)
err(1, "failed to rewind %s", path_zonetab);
goto again;
}
fclose(fp);
}
static void
dump_zonetab(void)
{
struct country *cp;
struct zone *zp;
const char *cont;
for (cp = countries; cp->name != NULL; cp++) {
printf("%s:%s\n", cp->tlc, cp->name);
TAILQ_FOREACH(zp, &cp->zones, link) {
cont = find_continent_name(zp->continent);
printf(" %s:%s\n", cont, zp->filename);
}
}
}
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;
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++;
}
for (i = 0; i < NCONTINENTS; i++) {
if (cp->alternate == continent_names[i].continent) {
continent_names[i].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 == NULL)
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;
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->fire = set_zone;
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->fire = set_zone_menu;
dmi->data = cp;
}
if (cp->alternate != NULL) {
cont = cp->alternate;
dmi = &cont->menu[cont->nitems];
memset(dmi, 0, sizeof(*dmi));
asprintf(&dmi->prompt, "%d", ++cont->nitems);
dmi->title = cp->name;
dmi->fire = set_zone_menu;
dmi->data = cp;
}
}
}
static int
set_zone_menu(dialogMenuItem *dmi)
{
char title[64], prompt[64];
struct country *cp = dmi->data;
int rv;
/* Short cut -- if there's only one zone, don't post a menu. */
if (cp->nzones == 1)
return (cp->submenu[0].fire(&cp->submenu[0]));
snprintf(title, sizeof(title), "%s Time Zones", cp->name);
snprintf(prompt, sizeof(prompt),
"Select a zone which observes the same time as your locality.");
rv = xdialog_menu(title, prompt, cp->nzones, cp->submenu);
return (rv != 0 ? DITEM_RECREATE : DITEM_LEAVE_MENU);
}
static int
set_zone_utc(void)
{
if (!confirm_zone("UTC"))
return (DITEM_FAILURE | DITEM_RECREATE);
return (install_zoneinfo("UTC"));
}
static int
confirm_zone(const char *filename)
{
char prompt[64];
time_t t = time(0);
struct tm *tm;
int rv;
setenv("TZ", filename, 1);
tzset();
tm = localtime(&t);
snprintf(prompt, sizeof(prompt),
"Does the abbreviation `%s' look reasonable?", tm->tm_zone);
conf.title = "Confirmation";
rv = (bsddialog_yesno(&conf, prompt, 5, 72) == BSDDIALOG_YES);
return (rv);
}
static int
set_zone(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);
}
#endif
static void message_zoneinfo_file(const char *title, char *prompt)
{
#ifdef HAVE_BSDDIALOG
if (usedialog) {
conf.title = title;
bsddialog_msgbox(&conf, prompt, 8, 72);
} else
#endif
fprintf(stderr, "%s: %s\n", title, prompt);
}
static int
install_zoneinfo_file(const char *zoneinfo_file)
{
char buf[1024];
char prompt[SILLY_BUFFER_SIZE];
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);
message_zoneinfo_file("Info", prompt);
#endif
if (reallydoit) {
if (copymode) {
fd1 = open(zoneinfo_file, O_RDONLY, 0);
if (fd1 < 0) {
snprintf(prompt, sizeof(prompt),
"Could not open %s: %s", zoneinfo_file,
strerror(errno));
message_zoneinfo_file("Error", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
if (unlink(path_localtime) < 0 && errno != ENOENT) {
snprintf(prompt, sizeof(prompt),
"Could not delete %s: %s",
path_localtime, strerror(errno));
message_zoneinfo_file("Error", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
fd2 = open(path_localtime, O_CREAT | O_EXCL | O_WRONLY,
S_IRUSR | S_IRGRP | S_IROTH);
if (fd2 < 0) {
snprintf(prompt, sizeof(prompt),
"Could not open %s: %s",
path_localtime, strerror(errno));
message_zoneinfo_file("Error", 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(prompt, sizeof(prompt),
"Error copying %s to %s %s", zoneinfo_file,
path_localtime, strerror(errno));
message_zoneinfo_file("Error", 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(prompt, sizeof(prompt),
"Cannot access %s: %s", zoneinfo_file,
strerror(errno));
message_zoneinfo_file("Error", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
if (unlink(path_localtime) < 0 && errno != ENOENT) {
snprintf(prompt, sizeof(prompt),
"Could not delete %s: %s",
path_localtime, strerror(errno));
message_zoneinfo_file("Error", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
if (symlink(zoneinfo_file, path_localtime) < 0) {
snprintf(prompt, sizeof(prompt),
"Cannot create symbolic link %s to %s: %s",
path_localtime, zoneinfo_file,
strerror(errno));
message_zoneinfo_file("Error", prompt);
return (DITEM_FAILURE | DITEM_RECREATE);
}
}
#ifdef VERBOSE
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);
message_zoneinfo_file("Done", prompt);
#endif
} /* reallydoit */
return (DITEM_LEAVE_MENU);
}
static int
install_zoneinfo(const char *zoneinfo)
{
int rv;
FILE *f;
char path_zoneinfo_file[MAXPATHLEN];
if ((size_t)snprintf(path_zoneinfo_file, sizeof(path_zoneinfo_file),
"%s/%s", path_zoneinfo, zoneinfo) >= sizeof(path_zoneinfo_file))
errx(1, "%s/%s name too long", path_zoneinfo, zoneinfo);
rv = install_zoneinfo_file(path_zoneinfo_file);
/* Save knowledge for later */
if (reallydoit && (rv & DITEM_FAILURE) == 0) {
if ((f = fopen(path_db, "w")) != NULL) {
fprintf(f, "%s\n", zoneinfo);
fclose(f);
}
}
return (rv);
}
static void
usage(void)
{
fprintf(stderr, "usage: tzsetup [-nrs] [-C chroot_directory]"
" [zoneinfo_file | zoneinfo_name]\n");
exit(1);
}
int
main(int argc, char **argv)
{
#ifdef HAVE_BSDDIALOG
char prompt[128];
int fd;
#endif
int c, rv, skiputc;
char vm_guest[16] = "";
size_t len = sizeof(vm_guest);
char *dztpath;
dztpath = NULL;
skiputc = 0;
#ifdef HAVE_BSDDIALOG
setlocale(LC_ALL, "");
#endif
/* Default skiputc to 1 for VM guests */
if (sysctlbyname("kern.vm_guest", vm_guest, &len, NULL, 0) == 0 &&
strcmp(vm_guest, "none") != 0)
skiputc = 1;
while ((c = getopt(argc, argv, "C:d:nrs")) != -1) {
switch (c) {
case 'C':
chrootenv = optarg;
break;
case 'd':
dztpath = optarg;
break;
case 'n':
reallydoit = 0;
break;
case 'r':
reinstall = 1;
#ifdef HAVE_BSDDIALOG
usedialog = 0;
#endif
break;
case 's':
skiputc = 1;
break;
default:
usage();
}
}
if (argc - optind > 1)
usage();
if (chrootenv == NULL) {
if (dztpath == NULL)
strcpy(path_zonetab, _PATH_ZONETAB);
else
strlcpy(path_zonetab, dztpath, sizeof(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);
if (reinstall == 1) {
FILE *f;
char zoneinfo[MAXPATHLEN];
if ((f = fopen(path_db, "r")) != NULL) {
if (fgets(zoneinfo, sizeof(zoneinfo), f) != NULL) {
zoneinfo[sizeof(zoneinfo) - 1] = 0;
if (strlen(zoneinfo) > 0) {
zoneinfo[strlen(zoneinfo) - 1] = 0;
rv = install_zoneinfo(zoneinfo);
exit(rv & ~DITEM_LEAVE_MENU);
}
errx(1, "Error reading %s.\n", path_db);
}
fclose(f);
errx(1,
"Unable to determine earlier installed zoneinfo "
"name. 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) {
#ifdef HAVE_BSDDIALOG
usedialog = 0;
#endif
rv = install_zoneinfo(argv[optind]);
exit(rv & ~DITEM_LEAVE_MENU);
}
/* FALLTHROUGH */
}
#ifdef HAVE_BSDDIALOG
read_iso3166_table();
read_zones();
sort_countries();
if (dztpath != NULL) {
dump_zonetab();
return (0);
}
make_menus();
bsddialog_initconf(&conf);
conf.clear = true;
conf.auto_minwidth = 24;
conf.key.enable_esc = true;
if (bsddialog_init() == BSDDIALOG_ERROR)
errx(1, "Error bsddialog: %s\n", bsddialog_geterror());
if (skiputc == 0) {
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!");
conf.title = "Select local or UTC (Greenwich Mean Time) clock";
if (bsddialog_yesno(&conf, prompt, 7, 73) == BSDDIALOG_YES) {
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) {
bsddialog_end();
err(1, "create %s",
path_wall_cmos_clock);
}
close(fd);
}
}
}
if (optind == argc - 1) {
snprintf(prompt, sizeof(prompt),
"\nUse the default `%s' zone?", argv[optind]);
conf.title = "Default timezone provided";
if (bsddialog_yesno(&conf, prompt, 7, 72) == BSDDIALOG_YES) {
rv = install_zoneinfo_file(argv[optind]);
bsddialog_end();
exit(rv & ~DITEM_LEAVE_MENU);
}
}
xdialog_menu("Time Zone Selector", "Select a region", NCONTINENTS,
continents);
bsddialog_end();
#else
usage();
#endif
return (0);
}
plain