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authorLukas Fleischer <lfleischer@calcurse.org>2016-03-27 12:54:10 +0200
committerLukas Fleischer <lfleischer@calcurse.org>2016-03-27 13:06:18 +0200
commit9e160fac16e81c42ac368f450b9cc4df29753e00 (patch)
tree9fe79f9b549f840b0d93cdfd79554e32f8e62dc1 /src/utils.c
parente1b6d226692ddaa8a9f077796a23317d36cd5d10 (diff)
downloadcalcurse-9e160fac16e81c42ac368f450b9cc4df29753e00.zip
Do not assume that days always have 86400 seconds
Make that date membership is computed correctly, even if a day has less than 86400 seconds (e.g. after changing clocks). Reported-by: Hakan Jerning <jerning@home.se> Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>
Diffstat (limited to 'src/utils.c')
-rw-r--r--src/utils.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c
index 4300b59..50f2507 100644
--- a/src/utils.c
+++ b/src/utils.c
@@ -418,6 +418,30 @@ time_t utcdate2sec(struct date day, unsigned hour, unsigned min)
return t;
}
+/* Compare two dates (without comparing times). */
+int date_cmp_day(time_t d1, time_t d2)
+{
+ struct tm lt1, lt2;
+
+ localtime_r((time_t *)&d1, &lt1);
+ localtime_r((time_t *)&d2, &lt2);
+
+ if (lt1.tm_year < lt2.tm_year)
+ return -1;
+ if (lt1.tm_year > lt2.tm_year)
+ return 1;
+ if (lt1.tm_mon < lt2.tm_mon)
+ return -1;
+ if (lt1.tm_mon > lt2.tm_mon)
+ return 1;
+ if (lt1.tm_mday < lt2.tm_mday)
+ return -1;
+ if (lt1.tm_mday > lt2.tm_mday)
+ return 1;
+
+ return 0;
+}
+
/* Return a string containing the date, given a date in seconds. */
char *date_sec2date_str(long sec, const char *datefmt)
{