updated log api

[prss.git] / src / ptime.c

diff --git a/src/ptime.c b/src/ptime.c
new file mode 100644 (file)
index 0000000..2c06c7c
--- /dev/null
+++ b/src/ptime.c
@@ -0,0 +1,85 @@
+/*
+  Copyright (C) 2010-2014 jeanfi@gmail.com
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of the
+  License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+  02110-1301 USA
+ */
+#include <stdlib.h>
+#include <string.h>
+
+#include <ptime.h>
+
+const int P_TIME_VER = 2;
+
+static const int ISO8601_TIME_LENGTH = 19; /* YYYY-MM-DDThh:mm:ss */
+static const int ISO8601_DATE_LENGTH = 10; /* YYYY-MM-DD */
+
+char *time_to_ISO8601_time(time_t *t)
+{
+       struct tm lt;
+
+       memset(&lt, 0, sizeof(struct tm));
+       if (!gmtime_r(t, &lt))
+               return NULL;
+
+       return tm_to_ISO8601_time(&lt);
+}
+
+char *time_to_ISO8601_date(time_t *t)
+{
+       struct tm lt;
+
+       memset(&lt, 0, sizeof(struct tm));
+       if (!gmtime_r(t, &lt))
+               return NULL;
+
+       return tm_to_ISO8601_date(&lt);
+}
+
+char *tm_to_ISO8601_date(struct tm *tm)
+{
+       char *str;
+
+       str = malloc(ISO8601_DATE_LENGTH + 1);
+
+       if (strftime(str, ISO8601_DATE_LENGTH + 1, "%F", tm)) {
+               return str;
+       } else {
+               free(str);
+               return NULL;
+       }
+}
+
+char *tm_to_ISO8601_time(struct tm *tm)
+{
+       char *str;
+
+       str = malloc(ISO8601_TIME_LENGTH + 1);
+
+       if (strftime(str, ISO8601_TIME_LENGTH + 1, "%FT%T", tm)) {
+               return str;
+       } else {
+               free(str);
+               return NULL;
+       }
+}
+
+char *get_current_ISO8601_time()
+{
+       time_t t;
+
+       t = time(NULL);
+       return time_to_ISO8601_time(&t);
+}