Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/* Options:
- -d DATESTR Display the date DATESTR.
- -s DATESTR Set the date to DATESTR.
- -u Display or set the date in universal instead of local time.
- +FORMAT Specify custom date output format, described below.
- MMDDhhmm[[CC]YY][.ss] Set the date in the format described below.
+ -d DATESTR Display the date DATESTR.
+ -s DATESTR Set the date to DATESTR.
+ -u Display or set the date in universal instead of local time.
+ +FORMAT Specify custom date output format, described below.
+ MMDDhhmm[[CC]YY][.ss] Set the date in the format described below.
If one non-option argument is given, it is used as the date to which
to set the system clock, and must have the format:
- MM month (01..12)
- DD day in month (01..31)
- hh hour (00..23)
- mm minute (00..59)
- CC first 2 digits of year (optional, defaults to current) (00..99)
- YY last 2 digits of year (optional, defaults to current) (00..99)
- ss second (00..61)
+ MM month (01..12)
+ DD day in month (01..31)
+ hh hour (00..23)
+ mm minute (00..59)
+ CC first 2 digits of year (optional, defaults to current) (00..99)
+ YY last 2 digits of year (optional, defaults to current) (00..99)
+ ss second (00..61)
If a non-option argument that starts with a `+' is specified, it
is used to control the format in which the date is printed; it
#include "version.h"
#include "system.h"
+#include "getline.h"
#ifdef TM_IN_SYS_TIME
#include <sys/time.h>
/* If non-zero, print the version on standard output and exit. */
static int show_version;
+/* If non-zero, print or set Coordinated Universal Time. */
+static int universal_time = 0;
+
static struct option const long_options[] =
{
{"date", required_argument, NULL, 'd'},
+ {"file", required_argument, NULL, 'f'},
{"help", no_argument, &show_help, 1},
{"set", required_argument, NULL, 's'},
{"uct", no_argument, NULL, 'u'},
{NULL, 0, NULL, 0}
};
-static int universal_time = 0;
+/* FIXME: comment */
+
+static int
+batch_convert (const char *input_filename, const char *format)
+{
+ int have_read_stdin;
+ int status;
+ FILE *in_stream;
+ char *line;
+ int line_length;
+ int buflen;
+ time_t when;
+
+ if (strcmp (input_filename, "-") == 0)
+ {
+ input_filename = "standard input";
+ in_stream = stdin;
+ have_read_stdin = 1;
+ }
+ else
+ {
+ in_stream = fopen (input_filename, "r");
+ if (in_stream == NULL)
+ {
+ error (0, errno, "%s", input_filename);
+ }
+ have_read_stdin = 0;
+ }
+
+ line = NULL;
+ buflen = 0;
+
+ status = 0;
+ while (1)
+ {
+ line_length = getline (&line, &buflen, in_stream);
+ if (line_length < 0)
+ {
+ /* FIXME: detect/handle error here. */
+ break;
+ }
+ when = get_date (line, NULL);
+ if (when == -1)
+ {
+ error (0, 0, "invalid date `%s'", line);
+ status = 1;
+ }
+ show_date (format, when);
+ }
+
+ if (have_read_stdin && fclose (stdin) == EOF)
+ error (2, errno, "standard input");
+
+ if (line != NULL)
+ free (line);
+
+ return status;
+}
void
main (argc, argv)
int set_date = 0;
int print_date = 0;
char *format;
+ char *batch_file = NULL;
int n_args;
+ int status;
program_name = argv[0];
- while ((optc = getopt_long (argc, argv, "d:s:u", long_options, (int *) 0))
+ while ((optc = getopt_long (argc, argv, "d:f:s:u", long_options, (int *) 0))
!= EOF)
switch (optc)
{
datestr = optarg;
print_date = 1;
break;
+ case 'f':
+ batch_file = optarg;
+ break;
case 's':
datestr = optarg;
set_date = 1;
usage (1);
}
- if ((set_date || print_date) && n_args == 1 && argv[optind][0] != '+')
+ if ((set_date || print_date || batch_file != NULL)
+ && n_args == 1 && argv[optind][0] != '+')
{
error (0, 0, "\
-when using the print or set time option, the sole\n\
+when using the print, set time, or batch options, any\n\
non-option argument must be a format string beginning with `+'");
usage (1);
}
- if (!print_date && !set_date)
+ if (batch_file != NULL)
{
- if (n_args == 1 && argv[optind][0] != '+')
+ if (set_date || print_date)
{
- /* Prepare to set system clock to the specified date/time given in
- the POSIX-format. */
- set_date = 1;
- datestr = argv[optind];
- when = posixtime (datestr);
- format = NULL;
+ error (0, 0, "\
+the print and set options may not be used when reading dates from a file");
+ usage (1);
+ }
+ status = batch_convert (batch_file,
+ (n_args == 1 ? argv[optind] : NULL));
+ }
+ else
+ {
+ status = 0;
+
+ if (!print_date && !set_date)
+ {
+ if (n_args == 1 && argv[optind][0] != '+')
+ {
+ /* Prepare to set system clock to the specified date/time
+ given in the POSIX-format. */
+ set_date = 1;
+ datestr = argv[optind];
+ when = posixtime (datestr);
+ format = NULL;
+ }
+ else
+ {
+ /* Prepare to print the current date/time. */
+ print_date = 1;
+ datestr = "undefined";
+ time (&when);
+ format = (n_args == 1 ? argv[optind] + 1 : NULL);
+ }
}
else
{
- /* Prepare to print the current date/time. */
- print_date = 1;
- datestr = "undefined";
- time (&when);
+ /* (print_date || set_date) */
+ when = get_date (datestr, NULL);
format = (n_args == 1 ? argv[optind] + 1 : NULL);
}
- }
- else
- {
- /* (print_date || set_date) */
- when = get_date (datestr, NULL);
- format = (n_args == 1 ? argv[optind] + 1 : NULL);
- }
- if (when == -1)
- error (1, 0, "invalid date `%s'", datestr);
+ if (when == -1)
+ error (1, 0, "invalid date `%s'", datestr);
- if (set_date)
- {
- /* Set the system clock to the specified date, then regardless of
- the success of that operation, format and print that date. */
- if (stime (&when) == -1)
- error (0, errno, "cannot set date");
+ if (set_date)
+ {
+ /* Set the system clock to the specified date, then regardless of
+ the success of that operation, format and print that date. */
+ if (stime (&when) == -1)
+ error (0, errno, "cannot set date");
+ }
+
+ show_date (format, when);
}
- show_date (format, when);
+ if (fclose (stdout) == EOF)
+ error (2, errno, "write error");
- exit (0);
+ exit (status);
}
/* Display the date and/or time in WHEN according to the format specified
if (format == NULL)
{
/* Print the date in the default format. Vanilla ANSI C strftime
- doesn't support %e, but POSIX requires it. If you don't use
- a GNU strftime, make sure yours supports %e. */
+ doesn't support %e, but POSIX requires it. If you don't use
+ a GNU strftime, make sure yours supports %e. */
format = (universal_time
? "%a %b %e %H:%M:%S UTC %Y"
: "%a %b %e %H:%M:%S %Z %Y");
projects / thirdparty / coreutils.git / commitdiff
