int
main (int argc, char **argv)
{
int i;
double seconds = 0.0;
bool ok = true;
initialize_main (&argc, &argv);
set_program_name (argv[0]);
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
atexit (close_stdout);
parse_long_options (argc, argv, PROGRAM_NAME, PACKAGE_NAME, Version,
usage, AUTHORS, (char const *) NULL);
if (getopt_long (argc, argv, "", NULL, NULL) != -1)
usage (EXIT_FAILURE);
if (argc == 1)
{
error (0, 0, _("missing operand"));
usage (EXIT_FAILURE);
}
for (i = optind; i < argc; i++)
{
double s;
const char *p;
if (! xstrtod (argv[i], &p, &s, c_strtod)
/* Nonnegative interval. */
|| ! (0 <= s)
/* No extra chars after the number and an optional s,m,h,d char. */
|| (*p && *(p+1))
/* Check any suffix char and update S based on the suffix. */
|| ! apply_suffix (&s, *p))
{
error (0, 0, _("invalid time interval %s"), quote (argv[i]));
ok = false;
}
seconds += s;
}
if (!ok)
usage (EXIT_FAILURE);
if (xnanosleep (seconds))
error (EXIT_FAILURE, errno, _("cannot read realtime clock"));
return EXIT_SUCCESS;
}
// Returns 0 if cannot parse as a series of decimal digits, possibly followed
// by k/m or K/M to denote a multiplier based on 1000 or 1024 respectively.
// If allow_neg, may be preceded by `-`
int atooff(const char *str, int length, int allow_neg, cc_off_t *outval)
{
if (!str || length <= 0)
return 0;
int is_neg = 0;
if (*str == '-') {
if (!allow_neg)
return 0;
is_neg = 1;
str++;
length--;
if (length <= 0)
return 0;
}
*outval = 0;
int first = 1;
for (; length; length--, str++, first = 0) {
int digit = *str - '0';
if (digit < 0 || digit > 9) {
// abort the digits sequence, and try to apply as a suffix.
// Only valid if it's the last and not the first and can be applied
return length == 1 && !first && apply_suffix(*outval, *str, outval);
}
first = 0;
if (is_neg)
digit = -digit;
if (!mult_safe(*outval, 10, outval) || !add_safe(*outval, digit, outval))
return 0;
}
return 1;
}