int date_main(int argc, char **argv)
{
char *date_str = NULL;
char *date_fmt = NULL;
int set_time;
int utc;
time_t tm;
unsigned long opt;
struct tm tm_time;
char *filename = NULL;
int ifmt = 0;
char *isofmt_arg;
char *hintfmt_arg;
bb_opt_complementally = "?:d--s:s--d";
opt = bb_getopt_ulflags(argc, argv, "Rs:ud:r:"
USE_FEATURE_DATE_ISOFMT("I::D:"),
&date_str, &date_str, &filename
USE_FEATURE_DATE_ISOFMT(, &isofmt_arg, &hintfmt_arg));
set_time = opt & DATE_OPT_SET;
utc = opt & DATE_OPT_UTC;
if (utc && putenv("TZ=UTC0") != 0) {
bb_error_msg_and_die(bb_msg_memory_exhausted);
}
if(ENABLE_FEATURE_DATE_ISOFMT && (opt & DATE_OPT_TIMESPEC)) {
if (!isofmt_arg) {
ifmt = 1;
} else {
char *isoformats[]={"date","hours","minutes","seconds"};
for(ifmt = 4; ifmt;)
if(!strcmp(isofmt_arg,isoformats[--ifmt]))
break;
}
if (!ifmt) {
bb_show_usage();
}
}
/* XXX, date_fmt == NULL from this always */
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];
}
/* Now we have parsed all the information except the date format
which depends on whether the clock is being set or read */
if(filename) {
struct stat statbuf;
xstat(filename,&statbuf);
tm=statbuf.st_mtime;
} else time(&tm);
memcpy(&tm_time, localtime(&tm), sizeof(tm_time));
/* Zero out fields - take her back to midnight! */
if (date_str != NULL) {
tm_time.tm_sec = 0;
tm_time.tm_min = 0;
tm_time.tm_hour = 0;
/* Process any date input to UNIX time since 1 Jan 1970 */
if (ENABLE_FEATURE_DATE_ISOFMT && (opt & DATE_OPT_HINT)) {
strptime(date_str, hintfmt_arg, &tm_time);
} else if (strchr(date_str, ':') != NULL) {
date_conv_ftime(&tm_time, date_str);
} else {
date_conv_time(&tm_time, date_str);
}
/* Correct any day of week and day of year etc. fields */
tm_time.tm_isdst = -1; /* Be sure to recheck dst. */
tm = mktime(&tm_time);
if (tm < 0) {
bb_error_msg_and_die(bb_msg_invalid_date, date_str);
}
if (utc && putenv("TZ=UTC0") != 0) {
bb_error_msg_and_die(bb_msg_memory_exhausted);
}
/* if setting time, set it */
if (set_time && stime(&tm) < 0) {
bb_perror_msg("cannot set date");
}
}
/* Display output */
/* Deal with format string */
if (date_fmt == NULL) {
/* Start with the default case */
date_fmt = (opt & DATE_OPT_RFC2822 ?
(utc ? "%a, %d %b %Y %H:%M:%S GMT" :
"%a, %d %b %Y %H:%M:%S %z") :
"%a %b %e %H:%M:%S %Z %Y");
if (ENABLE_FEATURE_DATE_ISOFMT) {
if (ifmt == 4)
date_fmt = utc ? "%Y-%m-%dT%H:%M:%SZ" : "%Y-%m-%dT%H:%M:%S%z";
else if (ifmt == 3)
date_fmt = utc ? "%Y-%m-%dT%H:%MZ" : "%Y-%m-%dT%H:%M%z";
else if (ifmt == 2)
date_fmt = utc ? "%Y-%m-%dT%HZ" : "%Y-%m-%dT%H%z";
else if (ifmt == 1)
date_fmt = "%Y-%m-%d";
}
}
if (*date_fmt == '\0') {
/* With no format string, just print a blank line */
*bb_common_bufsiz1=0;
} else {
/* Handle special conversions */
if (strncmp(date_fmt, "%f", 2) == 0) {
date_fmt = "%Y.%m.%d-%H:%M:%S";
}
/* Generate output string */
strftime(bb_common_bufsiz1, 200, date_fmt, &tm_time);
}
puts(bb_common_bufsiz1);
return EXIT_SUCCESS;
}
int date_main(int argc, char **argv)
{
char *date_str = NULL;
char *date_fmt = NULL;
char *t_buff;
int set_time;
int utc;
int use_arg = 0;
time_t tm;
unsigned long opt;
struct tm tm_time;
char *filename = NULL;
#ifdef CONFIG_FEATURE_DATE_ISOFMT
int ifmt = 0;
char *isofmt_arg;
# define GETOPT_ISOFMT "I::"
#else
# define GETOPT_ISOFMT
#endif
bb_opt_complementaly = "d~ds:s~ds";
opt = bb_getopt_ulflags(argc, argv, "Rs:ud:r:" GETOPT_ISOFMT,
&date_str, &date_str, &filename
#ifdef CONFIG_FEATURE_DATE_ISOFMT
, &isofmt_arg
#endif
);
set_time = opt & DATE_OPT_SET;
utc = opt & DATE_OPT_UTC;
if ((utc) && (putenv("TZ=UTC0") != 0)) {
bb_error_msg_and_die(bb_msg_memory_exhausted);
}
use_arg = opt & DATE_OPT_DATE;
if(opt & 0x80000000UL)
bb_show_usage();
#ifdef CONFIG_FEATURE_DATE_ISOFMT
if(opt & DATE_OPT_TIMESPEC) {
if (!isofmt_arg) {
ifmt = 1;
} else {
int ifmt_len = bb_strlen(isofmt_arg);
if ((ifmt_len <= 4)
&& (strncmp(isofmt_arg, "date", ifmt_len) == 0)) {
ifmt = 1;
} else if ((ifmt_len <= 5)
&& (strncmp(isofmt_arg, "hours", ifmt_len) == 0)) {
ifmt = 2;
} else if ((ifmt_len <= 7)
&& (strncmp(isofmt_arg, "minutes", ifmt_len) == 0)) {
ifmt = 3;
} else if ((ifmt_len <= 7)
&& (strncmp(isofmt_arg, "seconds", ifmt_len) == 0)) {
ifmt = 4;
}
}
if (!ifmt) {
bb_show_usage();
}
}
#endif
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];
}
/* Now we have parsed all the information except the date format
which depends on whether the clock is being set or read */
if(filename) {
struct stat statbuf;
if(stat(filename,&statbuf))
bb_perror_msg_and_die("File '%s' not found.\n",filename);
tm=statbuf.st_mtime;
} else time(&tm);
memcpy(&tm_time, localtime(&tm), sizeof(tm_time));
/* Zero out fields - take her back to midnight! */
if (date_str != NULL) {
tm_time.tm_sec = 0;
tm_time.tm_min = 0;
tm_time.tm_hour = 0;
/* Process any date input to UNIX time since 1 Jan 1970 */
if (strchr(date_str, ':') != NULL) {
date_conv_ftime(&tm_time, date_str);
} else {
date_conv_time(&tm_time, date_str);
}
/* Correct any day of week and day of year etc. fields */
tm_time.tm_isdst = -1; /* Be sure to recheck dst. */
tm = mktime(&tm_time);
if (tm < 0) {
bb_error_msg_and_die(bb_msg_invalid_date, date_str);
}
if (utc && (putenv("TZ=UTC0") != 0)) {
bb_error_msg_and_die(bb_msg_memory_exhausted);
}
/* if setting time, set it */
if (set_time && (stime(&tm) < 0)) {
bb_perror_msg("cannot set date");
}
}
/* Display output */
/* Deal with format string */
if (date_fmt == NULL) {
#ifdef CONFIG_FEATURE_DATE_ISOFMT
switch (ifmt) {
case 4:
date_fmt = utc ? "%Y-%m-%dT%H:%M:%SZ" : "%Y-%m-%dT%H:%M:%S%z";
break;
case 3:
date_fmt = utc ? "%Y-%m-%dT%H:%MZ" : "%Y-%m-%dT%H:%M%z";
break;
case 2:
date_fmt = utc ? "%Y-%m-%dT%HZ" : "%Y-%m-%dT%H%z";
break;
case 1:
date_fmt = "%Y-%m-%d";
break;
case 0:
default:
#endif
date_fmt = (opt & DATE_OPT_RFC2822 ?
(utc ? "%a, %d %b %Y %H:%M:%S GMT" :
"%a, %d %b %Y %H:%M:%S %z") :
"%a %b %e %H:%M:%S %Z %Y");
#ifdef CONFIG_FEATURE_DATE_ISOFMT
break;
}
#endif
} else if (*date_fmt == '\0') {
/* Imitate what GNU 'date' does with NO format string! */
printf("\n");
return EXIT_SUCCESS;
}
/* Handle special conversions */
if (strncmp(date_fmt, "%f", 2) == 0) {
date_fmt = "%Y.%m.%d-%H:%M:%S";
}
/* Print OUTPUT (after ALL that!) */
t_buff = xmalloc(201);
strftime(t_buff, 200, date_fmt, &tm_time);
puts(t_buff);
return EXIT_SUCCESS;
}
