*
*/
-#include "internal.h"
+#include "busybox.h"
#define BB_DECLARE_EXTERN
#define bb_need_invalid_date
#define bb_need_memory_exhausted
#include <unistd.h>
#include <time.h>
#include <stdio.h>
+#include <getopt.h>
/* This 'date' command supports only 2 time setting formats,
an RFC 822 complient date output for shell scripting
mail commands */
-static const char date_usage[] = "date [OPTION]... [+FORMAT]\n"
- " or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n"
-#ifndef BB_FEATURE_TRIVIAL_HELP
- "\nDisplays the current time in the given FORMAT, or sets the system date.\n"
- "\nOptions:\n\t-R\tOutputs RFC-822 compliant date string\n"
- "\t-s\tSets time described by STRING\n"
- "\t-u\tPrints or sets Coordinated Universal Time\n"
-#endif
- ;
-
-
/* Input parsing code is always bulky - used heavy duty libc stuff as
much as possible, missed out a lot of bounds checking */
&(tm_time->tm_min), &(tm_time->tm_year));
if (nr < 4 || nr > 5) {
- fatalError(invalid_date, "date", t_string);
+ error_msg_and_die(invalid_date, t_string);
}
/* correct for century - minor Y2K problem here? */
struct tm *date_conv_ftime(struct tm *tm_time, const char *t_string)
{
- struct tm itm_time, jtm_time, ktm_time, ltm_time, mtm_time, ntm_time;
-
- itm_time = *tm_time;
- jtm_time = *tm_time;
- ktm_time = *tm_time;
- ltm_time = *tm_time;
- mtm_time = *tm_time;
- ntm_time = *tm_time;
+ struct tm t;
/* Parse input and assign appropriately to tm_time */
- if (sscanf(t_string, "%d:%d:%d",
- &itm_time.tm_hour, &itm_time.tm_min, &itm_time.tm_sec) == 3) {
-
- *tm_time = itm_time;
- return (tm_time);
-
- } else if (sscanf(t_string, "%d:%d",
- &jtm_time.tm_hour, &jtm_time.tm_min) == 2) {
-
- *tm_time = jtm_time;
- return (tm_time);
-
- } else if (sscanf(t_string, "%d.%d-%d:%d:%d",
- &ktm_time.tm_mon,
- &ktm_time.tm_mday,
- &ktm_time.tm_hour,
- &ktm_time.tm_min, &ktm_time.tm_sec) == 5) {
-
- ktm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
- *tm_time = ktm_time;
- return (tm_time);
-
- } else if (sscanf(t_string, "%d.%d-%d:%d",
- <m_time.tm_mon,
- <m_time.tm_mday,
- <m_time.tm_hour, <m_time.tm_min) == 4) {
-
- ltm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
- *tm_time = ltm_time;
- return (tm_time);
-
- } else if (sscanf(t_string, "%d.%d.%d-%d:%d:%d",
- &mtm_time.tm_year,
- &mtm_time.tm_mon,
- &mtm_time.tm_mday,
- &mtm_time.tm_hour,
- &mtm_time.tm_min, &mtm_time.tm_sec) == 6) {
-
- mtm_time.tm_year -= 1900; /* Adjust years */
- mtm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
- *tm_time = mtm_time;
- return (tm_time);
-
- } else if (sscanf(t_string, "%d.%d.%d-%d:%d",
- &ntm_time.tm_year,
- &ntm_time.tm_mon,
- &ntm_time.tm_mday,
- &ntm_time.tm_hour, &ntm_time.tm_min) == 5) {
- ntm_time.tm_year -= 1900; /* Adjust years */
- ntm_time.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
- *tm_time = ntm_time;
- return (tm_time);
+ if (t=*tm_time,sscanf(t_string, "%d:%d:%d",
+ &t.tm_hour, &t.tm_min, &t.tm_sec) == 3) {
+ /* no adjustments needed */
- }
+ } else if (t=*tm_time,sscanf(t_string, "%d:%d",
+ &t.tm_hour, &t.tm_min) == 2) {
+ /* no adjustments needed */
+
+
+ } else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d:%d",
+ &t.tm_mon,
+ &t.tm_mday,
+ &t.tm_hour,
+ &t.tm_min, &t.tm_sec) == 5) {
+
+ t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+
+ } else if (t=*tm_time,sscanf(t_string, "%d.%d-%d:%d",
+ &t.tm_mon,
+ &t.tm_mday,
+ &t.tm_hour, &t.tm_min) == 4) {
+
+ t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+
+ } else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d:%d",
+ &t.tm_year,
+ &t.tm_mon,
+ &t.tm_mday,
+ &t.tm_hour,
+ &t.tm_min, &t.tm_sec) == 6) {
+
+ t.tm_year -= 1900; /* Adjust years */
+ t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
- fatalError(invalid_date, "date", t_string);
+ } else if (t=*tm_time,sscanf(t_string, "%d.%d.%d-%d:%d",
+ &t.tm_year,
+ &t.tm_mon,
+ &t.tm_mday,
+ &t.tm_hour, &t.tm_min) == 5) {
+ t.tm_year -= 1900; /* Adjust years */
+ t.tm_mon -= 1; /* Adjust dates from 1-12 to 0-11 */
+
+ } else {
+ error_msg_and_die(invalid_date, t_string);
+ }
+ *tm_time = t;
+ return (tm_time);
}
char *date_str = NULL;
char *date_fmt = NULL;
char *t_buff;
- int i;
+ int c;
int set_time = 0;
int rfc822 = 0;
int utc = 0;
struct tm tm_time;
/* Interpret command line args */
- i = --argc;
- argv++;
- while (i > 0 && **argv) {
- if (**argv == '-') {
- while (i > 0 && *++(*argv))
- switch (**argv) {
- case 'R':
- rfc822 = 1;
- break;
- case 's':
- set_time = 1;
- if (date_str != NULL)
- usage(date_usage);
- date_str = *argv;
- break;
- case 'u':
- utc = 1;
- if (putenv("TZ=UTC0") != 0)
- fatalError(memory_exhausted, "date");
- /* Look ma, no break. Don't fix it either. */
- case 'd':
- use_arg = 1;
- if (date_str != NULL)
- usage(date_usage);
- date_str = *argv;
- break;
- case '-':
+ while ((c = getopt(argc, argv, "Rs:ud:")) != EOF) {
+ switch (c) {
+ case 'R':
+ rfc822 = 1;
+ break;
+ case 's':
+ set_time = 1;
+ if ((date_str != NULL) || ((date_str = optarg) == NULL)) {
usage(date_usage);
}
- } else {
- if ((date_fmt == NULL) && (**argv == '+'))
- date_fmt = *argv + 1; /* Skip over the '+' */
- else if (date_str == NULL) {
- set_time = 1;
- date_str = *argv;
- } else {
+ break;
+ case 'u':
+ utc = 1;
+ if (putenv("TZ=UTC0") != 0)
+ error_msg_and_die(memory_exhausted);
+ break;
+ case 'd':
+ use_arg = 1;
+ if ((date_str != NULL) || ((date_str = optarg) == NULL))
+ usage(date_usage);
+ break;
+ default:
usage(date_usage);
- }
}
- i--;
- argv++;
}
+ if ((date_fmt == NULL) && (optind < argc) && (argv[optind][0] == '+'))
+ date_fmt = &argv[optind][1]; /* Skip over the '+' */
+ else if (date_str == NULL) {
+ set_time = 1;
+ date_str = argv[optind];
+ }
+#if 0
+ else {
+ error_msg("date_str='%s' date_fmt='%s'\n", date_str, date_fmt);
+ usage(date_usage);
+ }
+#endif
/* Now we have parsed all the information except the date format
which depends on whether the clock is being set or read */
/* Correct any day of week and day of year etc fields */
tm = mktime(&tm_time);
if (tm < 0)
- fatalError(invalid_date, "date", date_str);
+ error_msg_and_die(invalid_date, date_str);
+ if ( utc ) {
+ if (putenv("TZ=UTC0") != 0)
+ error_msg_and_die(memory_exhausted);
+ }
/* if setting time, set it */
if (set_time) {
if (stime(&tm) < 0) {
- fatalError("date: can't set date.\n");
+ perror_msg("cannot set date");
}
}
}
} else if (*date_fmt == '\0') {
/* Imitate what GNU 'date' does with NO format string! */
printf("\n");
- exit(TRUE);
+ return EXIT_SUCCESS;
}
/* Handle special conversions */
strftime(t_buff, 200, date_fmt, &tm_time);
printf("%s\n", t_buff);
- exit(TRUE);
-
+ return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff