/*
* doboth - handle both I/O and alarms via SIGIO
*/
int
doboth(
int fd
)
{
int n;
int sawalarm;
int sawiosig;
int omask;
fd_set fds;
struct timeval tvzero;
sawalarm = 0;
sawiosig = 0;
FD_ZERO(&fds);
for (;;) {
omask = sigblock(BLOCKSIGMASK);
if (wasalarmed) { /* alarmed? */
sawalarm = 1;
wasalarmed = 0;
}
if (iosig) {
sawiosig = 1;
iosig = 0;
}
if (!sawalarm && !sawiosig) {
/*
* Nothing to do. Wait for something.
*/
sigpause(omask);
if (wasalarmed) { /* alarmed? */
sawalarm = 1;
wasalarmed = 0;
}
if (iosig) {
sawiosig = 1;
iosig = 0;
}
}
(void)sigsetmask(omask);
if (sawiosig) {
do {
tvzero.tv_sec = tvzero.tv_usec = 0;
FD_SET(fd, &fds);
n = select(fd+1, &fds, (fd_set *)0,
(fd_set *)0, &tvzero);
if (n > 0)
doio(fd);
} while (n > 0);
if (n == -1) {
(void) fprintf(stderr, "%s: select: ",
progname);
perror("");
exit(1);
}
sawiosig = 0;
}
if (sawalarm) {
doalarm(fd);
sawalarm = 0;
}
}
}
/*
* leave [[+]hhmm]
*
* Reminds you when you have to leave.
* Leave prompts for input and goes away if you hit return.
* It nags you like a mother hen.
*/
int
main(int argc, char **argv)
{
u_int secs;
int hours, minutes;
char c, *cp = NULL;
struct tm *t;
time_t now;
int plusnow, t_12_hour;
char buf[50];
if (setlocale(LC_TIME, "") == NULL)
warn("setlocale");
if (argc < 2) {
#define MSG1 "When do you have to leave? "
(void)write(1, MSG1, sizeof(MSG1) - 1);
cp = fgets(buf, sizeof(buf), stdin);
if (cp == NULL || *cp == '\n')
exit(0);
} else if (argc > 2)
usage();
else
cp = argv[1];
if (*cp == '+') {
plusnow = 1;
++cp;
} else
plusnow = 0;
for (hours = 0; (c = *cp) && c != '\n'; ++cp) {
if (!isdigit(c))
usage();
hours = hours * 10 + (c - '0');
}
minutes = hours % 100;
hours /= 100;
if (minutes < 0 || minutes > 59)
usage();
if (plusnow)
secs = hours * 60 * 60 + minutes * 60;
else {
(void)time(&now);
t = localtime(&now);
if (hours > 23)
usage();
/* Convert tol to 12 hr time (0:00...11:59) */
if (hours > 11)
hours -= 12;
/* Convert tm to 12 hr time (0:00...11:59) */
if (t->tm_hour > 11)
t_12_hour = t->tm_hour - 12;
else
t_12_hour = t->tm_hour;
if (hours < t_12_hour ||
(hours == t_12_hour && minutes <= t->tm_min))
/* Leave time is in the past so we add 12 hrs */
hours += 12;
secs = (hours - t_12_hour) * 60 * 60;
secs += (minutes - t->tm_min) * 60;
secs -= now % 60; /* truncate (now + secs) to min */
}
doalarm(secs);
exit(0);
}
/*
* leave [[+]hhmm]
*
* Reminds you when you have to leave.
* Leave prompts for input and goes away if you hit return.
* It nags you like a mother hen.
*/
int
main(int argc, char *argv[])
{
u_int secs;
int hours, minutes;
char c, *cp;
struct tm *t;
time_t now;
int plusnow = 0, twentyfour;
char buf[50];
setlinebuf(stdout);
if (argc < 2) {
(void)fputs("When do you have to leave? ", stdout);
cp = fgets(buf, sizeof(buf), stdin);
if (cp == NULL || *cp == '\n')
exit(0);
} else if (argc > 2)
usage();
else
cp = argv[1];
if (*cp == '+') {
plusnow = 1;
++cp;
}
for (hours = 0; (c = *cp) && c != '\n'; ++cp) {
if (!isdigit(c))
usage();
hours = hours * 10 + (c - '0');
}
minutes = hours % 100;
hours /= 100;
/* determine 24 hours mode */
twentyfour = hours > 12;
if (minutes < 0 || minutes > 59)
usage();
if (plusnow)
secs = (hours * HOUR) + (minutes * MINUTE);
else {
if (hours > 23)
usage();
(void)time(&now);
t = localtime(&now);
while (t->tm_hour > hours ||
(t->tm_hour == hours && t->tm_min >= minutes)) {
if (twentyfour)
hours += 24;
else
hours += 12;
}
secs = (hours - t->tm_hour) * HOUR;
secs += (minutes - t->tm_min) * MINUTE;
}
doalarm(secs);
exit(0);
}
