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*: make it easier to distinquish "struct tm", pointer to one, etc

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-01-09 19:10:49 +01:00
parent 0681137972
commit dc698bb038
13 changed files with 130 additions and 121 deletions
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90
libbb/time.c
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@@ -8,51 +8,51 @@
*/
#include "libbb.h"
void FAST_FUNC parse_datestr(const char *date_str, struct tm *tm_time)
void FAST_FUNC parse_datestr(const char *date_str, struct tm *ptm)
{
char end = '\0';
const char *last_colon = strrchr(date_str, ':');
if (last_colon != NULL) {
/* Parse input and assign appropriately to tm_time */
/* Parse input and assign appropriately to ptm */
/* HH:MM */
if (sscanf(date_str, "%u:%u%c",
&tm_time->tm_hour,
&tm_time->tm_min,
&ptm->tm_hour,
&ptm->tm_min,
&end) >= 2) {
/* no adjustments needed */
} else
/* mm.dd-HH:MM */
if (sscanf(date_str, "%u.%u-%u:%u%c",
&tm_time->tm_mon, &tm_time->tm_mday,
&tm_time->tm_hour, &tm_time->tm_min,
&ptm->tm_mon, &ptm->tm_mday,
&ptm->tm_hour, &ptm->tm_min,
&end) >= 4) {
/* Adjust month from 1-12 to 0-11 */
tm_time->tm_mon -= 1;
ptm->tm_mon -= 1;
} else
/* yyyy.mm.dd-HH:MM */
if (sscanf(date_str, "%u.%u.%u-%u:%u%c", &tm_time->tm_year,
&tm_time->tm_mon, &tm_time->tm_mday,
&tm_time->tm_hour, &tm_time->tm_min,
if (sscanf(date_str, "%u.%u.%u-%u:%u%c", &ptm->tm_year,
&ptm->tm_mon, &ptm->tm_mday,
&ptm->tm_hour, &ptm->tm_min,
&end) >= 5) {
tm_time->tm_year -= 1900; /* Adjust years */
tm_time->tm_mon -= 1; /* Adjust month from 1-12 to 0-11 */
ptm->tm_year -= 1900; /* Adjust years */
ptm->tm_mon -= 1; /* Adjust month from 1-12 to 0-11 */
} else
/* yyyy-mm-dd HH:MM */
if (sscanf(date_str, "%u-%u-%u %u:%u%c", &tm_time->tm_year,
&tm_time->tm_mon, &tm_time->tm_mday,
&tm_time->tm_hour, &tm_time->tm_min,
if (sscanf(date_str, "%u-%u-%u %u:%u%c", &ptm->tm_year,
&ptm->tm_mon, &ptm->tm_mday,
&ptm->tm_hour, &ptm->tm_min,
&end) >= 5) {
tm_time->tm_year -= 1900; /* Adjust years */
tm_time->tm_mon -= 1; /* Adjust month from 1-12 to 0-11 */
ptm->tm_year -= 1900; /* Adjust years */
ptm->tm_mon -= 1; /* Adjust month from 1-12 to 0-11 */
//TODO: coreutils 6.9 also accepts "yyyy-mm-dd HH" (no minutes)
} else {
bb_error_msg_and_die(bb_msg_invalid_date, date_str);
}
if (end == ':') {
/* xxx:SS */
if (sscanf(last_colon + 1, "%u%c", &tm_time->tm_sec, &end) == 1)
if (sscanf(last_colon + 1, "%u%c", &ptm->tm_sec, &end) == 1)
end = '\0';
/* else end != NUL and we error out */
}
@@ -75,60 +75,60 @@ void FAST_FUNC parse_datestr(const char *date_str, struct tm *tm_time)
/* MM[.SS] */
if (len == 2 && sscanf(date_str, "%2u%2u%2u%2u""%2u%c" + 12,
&tm_time->tm_min,
&ptm->tm_min,
&end) >= 1) {
} else
/* HHMM[.SS] */
if (len == 4 && sscanf(date_str, "%2u%2u%2u""%2u%2u%c" + 9,
&tm_time->tm_hour,
&tm_time->tm_min,
&ptm->tm_hour,
&ptm->tm_min,
&end) >= 2) {
} else
/* ddHHMM[.SS] */
if (len == 6 && sscanf(date_str, "%2u%2u""%2u%2u%2u%c" + 6,
&tm_time->tm_mday,
&tm_time->tm_hour,
&tm_time->tm_min,
&ptm->tm_mday,
&ptm->tm_hour,
&ptm->tm_min,
&end) >= 3) {
} else
/* mmddHHMM[.SS] */
if (len == 8 && sscanf(date_str, "%2u""%2u%2u%2u%2u%c" + 3,
&tm_time->tm_mon,
&tm_time->tm_mday,
&tm_time->tm_hour,
&tm_time->tm_min,
&ptm->tm_mon,
&ptm->tm_mday,
&ptm->tm_hour,
&ptm->tm_min,
&end) >= 4) {
/* Adjust month from 1-12 to 0-11 */
tm_time->tm_mon -= 1;
ptm->tm_mon -= 1;
} else
/* yymmddHHMM[.SS] */
if (len == 10 && sscanf(date_str, "%2u%2u%2u%2u%2u%c",
&tm_time->tm_year,
&tm_time->tm_mon,
&tm_time->tm_mday,
&tm_time->tm_hour,
&tm_time->tm_min,
&ptm->tm_year,
&ptm->tm_mon,
&ptm->tm_mday,
&ptm->tm_hour,
&ptm->tm_min,
&end) >= 5) {
/* Adjust month from 1-12 to 0-11 */
tm_time->tm_mon -= 1;
ptm->tm_mon -= 1;
} else
/* ccyymmddHHMM[.SS] */
if (len == 12 && sscanf(date_str, "%4u%2u%2u%2u%2u%c",
&tm_time->tm_year,
&tm_time->tm_mon,
&tm_time->tm_mday,
&tm_time->tm_hour,
&tm_time->tm_min,
&ptm->tm_year,
&ptm->tm_mon,
&ptm->tm_mday,
&ptm->tm_hour,
&ptm->tm_min,
&end) >= 5) {
tm_time->tm_year -= 1900; /* Adjust years */
tm_time->tm_mon -= 1; /* Adjust month from 1-12 to 0-11 */
ptm->tm_year -= 1900; /* Adjust years */
ptm->tm_mon -= 1; /* Adjust month from 1-12 to 0-11 */
} else {
bb_error_msg_and_die(bb_msg_invalid_date, date_str);
}
if (end == '.') {
/* xxx.SS */
if (sscanf(strchr(date_str, '.') + 1, "%u%c",
&tm_time->tm_sec, &end) == 1)
&ptm->tm_sec, &end) == 1)
end = '\0';
/* else end != NUL and we error out */
}
@@ -138,9 +138,9 @@ void FAST_FUNC parse_datestr(const char *date_str, struct tm *tm_time)
}
}
time_t FAST_FUNC validate_tm_time(const char *date_str, struct tm *tm_time)
time_t FAST_FUNC validate_tm_time(const char *date_str, struct tm *ptm)
{
time_t t = mktime(tm_time);
time_t t = mktime(ptm);
if (t == (time_t) -1L) {
bb_error_msg_and_die(bb_msg_invalid_date, date_str);
}