1 files changed, 116 insertions, 0 deletions
diff --git a/src/libbbsutil/time.c b/src/libbbsutil/time.c
new file mode 100644
index 00000000..2e0dbdd1
--- /dev/null
+++ b/src/libbbsutil/time.c
@@ -0,0 +1,116 @@
+#include <time.h>
+#include <stdio.h>
+#include "libbbsutil.h"
+
+static char cdate_buffer[32];
+
+/**
+ * 閏年
+ */
+int is_leap_year(int year)
+{
+    return year % 400 == 0 || (year % 4 == 0 && year % 100 != 0);
+}
+
+/**
+ * 給日期求星座
+ *
+ * @return	1..12
+ */
+int getHoroscope(int m, int d)
+{
+    if (m > 12 || m < 1)
+	return 1;
+
+    // 摩羯 水瓶 雙魚 牡羊 金牛 雙子 巨蟹 獅子 處女 天秤 天蠍 射手
+    const int firstday[12] = {
+	/* Jan. */ 20, 19, 21, 20, 21, 21, 23, 23, 23, 23, 22, 22
+    };
+    if (d >= firstday[m - 1]) {
+	if (m == 12)
+	    return 1;
+	else
+	    return m + 1;
+    }
+    else
+	return m;
+}
+
+/**
+ * 23+1 bytes, "12/31/2007 00:00:00 Mon\0"
+ */
+char           *
+Cdate(const time4_t *clock)
+{
+    time_t          temp = (time_t)*clock;
+    struct tm      *mytm = localtime(&temp);
+
+    strftime(cdate_buffer, sizeof(cdate_buffer), "%m/%d/%Y %T %a", mytm);
+    return cdate_buffer;
+}
+
+/**
+ * 19+1 bytes, "12/31/2007 00:00:00\0"
+ */
+char           *
+Cdatelite(const time4_t *clock)
+{
+    time_t          temp = (time_t)*clock;
+    struct tm      *mytm = localtime(&temp);
+
+    strftime(cdate_buffer, sizeof(cdate_buffer), "%m/%d/%Y %T", mytm);
+    return cdate_buffer;
+}
+
+/**
+ * 10+1 bytes, "12/31/2007\0"
+ */
+char           *
+Cdatedate(const time4_t * clock)
+{
+    time_t          temp = (time_t)*clock;
+    struct tm      *mytm = localtime(&temp);
+
+    strftime(cdate_buffer, sizeof(cdate_buffer), "%m/%d/%Y", mytm);
+    return cdate_buffer;
+}
+
+#ifdef TIMET64
+char           *
+ctime4(const time4_t *clock)
+{
+    time_t temp = (time_t)*clock;
+    
+    return ctime(&temp);
+}
+
+struct tm *localtime4(const time4_t *t)
+{
+    if( t == NULL )
+	return localtime(NULL);
+    else {
+	time_t  temp = (time_t)*t;
+	return localtime(&temp);
+    }
+}
+
+time4_t time4(time4_t *ptr)
+{
+    if( ptr == NULL )
+	return time(NULL);
+    else
+	return *ptr = (time4_t)time(NULL);
+}
+#endif
+
+char           *
+my_ctime(const time4_t * t, char *ans, int len)
+{
+    struct tm      *tp;
+
+    tp = localtime4((time4_t*)t);
+    snprintf(ans, len,
+	     "%02d/%02d/%02d %02d:%02d:%02d", (tp->tm_year % 100),
+	     tp->tm_mon + 1, tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec);
+    return ans;
+}