Some formatting updates (ran the code through indent)
-Erik
This commit is contained in:
451
coreutils/date.c
451
coreutils/date.c
@@ -1,3 +1,4 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Mini date implementation for busybox
|
||||
*
|
||||
@@ -38,12 +39,13 @@
|
||||
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\n"
|
||||
"Display the current time in the given FORMAT, or set the system date.\n"
|
||||
"\nOptions:\n\t-R\t\toutput RFC-822 compliant date string\n"
|
||||
"\t-s\t\tset time described by STRING\n"
|
||||
"\t-u\t\tprint or set Coordinated Universal Time\n";
|
||||
static const char date_usage[] = "date [OPTION]... [+FORMAT]\n"
|
||||
" or: date [OPTION] [MMDDhhmm[[CC]YY][.ss]]\n\n"
|
||||
"Display the current time in the given FORMAT, or set the system date.\n"
|
||||
"\nOptions:\n\t-R\t\toutput RFC-822 compliant date string\n"
|
||||
"\t-s\t\tset time described by STRING\n"
|
||||
|
||||
"\t-u\t\tprint or set Coordinated Universal Time\n";
|
||||
|
||||
|
||||
/* Input parsing code is always bulky - used heavy duty libc stuff as
|
||||
@@ -51,240 +53,233 @@ static const char date_usage[] = "date [OPTION]... [+FORMAT]\n"
|
||||
|
||||
/* Default input handling to save suprising some people */
|
||||
|
||||
struct tm *
|
||||
date_conv_time(struct tm *tm_time, const char *t_string) {
|
||||
int nr;
|
||||
struct tm *date_conv_time(struct tm *tm_time, const char *t_string)
|
||||
{
|
||||
int nr;
|
||||
|
||||
nr = sscanf(t_string, "%2d%2d%2d%2d%d",
|
||||
&(tm_time->tm_mon),
|
||||
&(tm_time->tm_mday),
|
||||
&(tm_time->tm_hour),
|
||||
&(tm_time->tm_min),
|
||||
&(tm_time->tm_year));
|
||||
nr = sscanf(t_string, "%2d%2d%2d%2d%d",
|
||||
&(tm_time->tm_mon),
|
||||
&(tm_time->tm_mday),
|
||||
&(tm_time->tm_hour),
|
||||
&(tm_time->tm_min), &(tm_time->tm_year));
|
||||
|
||||
if(nr < 4 || nr > 5) {
|
||||
fprintf(stderr, invalid_date, "date", t_string);
|
||||
exit( FALSE);
|
||||
}
|
||||
if (nr < 4 || nr > 5) {
|
||||
fprintf(stderr, invalid_date, "date", t_string);
|
||||
exit(FALSE);
|
||||
}
|
||||
|
||||
/* correct for century - minor Y2K problem here? */
|
||||
if(tm_time->tm_year >= 1900)
|
||||
tm_time->tm_year -= 1900;
|
||||
/* adjust date */
|
||||
tm_time->tm_mon -= 1;
|
||||
|
||||
return(tm_time);
|
||||
/* correct for century - minor Y2K problem here? */
|
||||
if (tm_time->tm_year >= 1900)
|
||||
tm_time->tm_year -= 1900;
|
||||
/* adjust date */
|
||||
tm_time->tm_mon -= 1;
|
||||
|
||||
return (tm_time);
|
||||
|
||||
}
|
||||
|
||||
|
||||
/* The new stuff for LRP */
|
||||
|
||||
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;
|
||||
|
||||
/* 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);
|
||||
|
||||
}
|
||||
|
||||
fprintf(stderr, invalid_date, "date", t_string);
|
||||
|
||||
exit( FALSE);
|
||||
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
date_main(int argc, char * * argv)
|
||||
struct tm *date_conv_ftime(struct tm *tm_time, const char *t_string)
|
||||
{
|
||||
char *date_str = NULL;
|
||||
char *date_fmt = NULL;
|
||||
char *t_buff;
|
||||
int i;
|
||||
int set_time = 0;
|
||||
int rfc822 = 0;
|
||||
int utc = 0;
|
||||
int use_arg = 0;
|
||||
time_t tm;
|
||||
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 = optarg;
|
||||
break;
|
||||
case 'u':
|
||||
utc = 1;
|
||||
if (putenv ("TZ=UTC0") != 0) {
|
||||
fprintf(stderr, memory_exhausted, "date");
|
||||
exit( FALSE);
|
||||
}
|
||||
/* Look ma, no break. Don't fix it either. */
|
||||
case 'd':
|
||||
use_arg = 1;
|
||||
if(date_str != NULL) usage ( date_usage);
|
||||
date_str = optarg;
|
||||
break;
|
||||
case '-':
|
||||
usage ( date_usage);
|
||||
}
|
||||
} else {
|
||||
if ( (date_fmt == NULL) && (strcmp(*argv, "+")==0) )
|
||||
date_fmt=*argv;
|
||||
else if (date_str == NULL) {
|
||||
set_time = 1;
|
||||
date_str=*argv;
|
||||
} else {
|
||||
usage ( date_usage);
|
||||
}
|
||||
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;
|
||||
|
||||
/* 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);
|
||||
|
||||
}
|
||||
i--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
fprintf(stderr, invalid_date, "date", t_string);
|
||||
|
||||
/* Now we have parsed all the information except the date format
|
||||
which depends on whether the clock is being set or read */
|
||||
|
||||
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(date_str != NULL) {
|
||||
|
||||
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 = mktime(&tm_time);
|
||||
if (tm < 0 ) {
|
||||
fprintf(stderr, invalid_date, "date", date_str);
|
||||
exit( FALSE);
|
||||
}
|
||||
|
||||
/* if setting time, set it */
|
||||
if(set_time) {
|
||||
if( stime(&tm) < 0) {
|
||||
fprintf(stderr, "date: can't set date.\n");
|
||||
exit( FALSE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Display output */
|
||||
|
||||
/* Deal with format string */
|
||||
if(date_fmt == NULL) {
|
||||
date_fmt = (rfc822
|
||||
? (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");
|
||||
|
||||
} else if ( *date_fmt == '\0' ) {
|
||||
/* Imitate what GNU 'date' does with NO format string! */
|
||||
printf ("\n");
|
||||
exit( TRUE);
|
||||
}
|
||||
|
||||
/* 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 = malloc(201);
|
||||
strftime(t_buff, 200, date_fmt, &tm_time);
|
||||
printf("%s\n", t_buff);
|
||||
|
||||
exit( TRUE);
|
||||
exit(FALSE);
|
||||
|
||||
}
|
||||
|
||||
|
||||
int date_main(int argc, char **argv)
|
||||
{
|
||||
char *date_str = NULL;
|
||||
char *date_fmt = NULL;
|
||||
char *t_buff;
|
||||
int i;
|
||||
int set_time = 0;
|
||||
int rfc822 = 0;
|
||||
int utc = 0;
|
||||
int use_arg = 0;
|
||||
time_t tm;
|
||||
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 = optarg;
|
||||
break;
|
||||
case 'u':
|
||||
utc = 1;
|
||||
if (putenv("TZ=UTC0") != 0) {
|
||||
fprintf(stderr, memory_exhausted, "date");
|
||||
exit(FALSE);
|
||||
}
|
||||
/* Look ma, no break. Don't fix it either. */
|
||||
case 'd':
|
||||
use_arg = 1;
|
||||
if (date_str != NULL)
|
||||
usage(date_usage);
|
||||
date_str = optarg;
|
||||
break;
|
||||
case '-':
|
||||
usage(date_usage);
|
||||
}
|
||||
} else {
|
||||
if ((date_fmt == NULL) && (strcmp(*argv, "+") == 0))
|
||||
date_fmt = *argv;
|
||||
else if (date_str == NULL) {
|
||||
set_time = 1;
|
||||
date_str = *argv;
|
||||
} else {
|
||||
usage(date_usage);
|
||||
}
|
||||
}
|
||||
i--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
|
||||
/* Now we have parsed all the information except the date format
|
||||
which depends on whether the clock is being set or read */
|
||||
|
||||
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 (date_str != NULL) {
|
||||
|
||||
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 = mktime(&tm_time);
|
||||
if (tm < 0) {
|
||||
fprintf(stderr, invalid_date, "date", date_str);
|
||||
exit(FALSE);
|
||||
}
|
||||
|
||||
/* if setting time, set it */
|
||||
if (set_time) {
|
||||
if (stime(&tm) < 0) {
|
||||
fprintf(stderr, "date: can't set date.\n");
|
||||
exit(FALSE);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Display output */
|
||||
|
||||
/* Deal with format string */
|
||||
if (date_fmt == NULL) {
|
||||
date_fmt = (rfc822
|
||||
? (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");
|
||||
|
||||
} else if (*date_fmt == '\0') {
|
||||
/* Imitate what GNU 'date' does with NO format string! */
|
||||
printf("\n");
|
||||
exit(TRUE);
|
||||
}
|
||||
|
||||
/* 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 = malloc(201);
|
||||
strftime(t_buff, 200, date_fmt, &tm_time);
|
||||
printf("%s\n", t_buff);
|
||||
|
||||
exit(TRUE);
|
||||
|
||||
}
|
||||
|
Reference in New Issue
Block a user