1 files changed, 122 insertions, 0 deletions
diff --git a/lib/libc/stdio/xprintf_time.c b/lib/libc/stdio/xprintf_time.c
new file mode 100644
index 0000000..debfac5
--- /dev/null
+++ b/lib/libc/stdio/xprintf_time.c
@@ -0,0 +1,122 @@
+/*-
+ * Copyright (c) 2005 Poul-Henning Kamp
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#include <namespace.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <stdint.h>
+#include <assert.h>
+#include <sys/time.h>
+#include "printf.h"
+
+int
+__printf_arginfo_time(const struct printf_info *pi, size_t n, int *argt)
+{
+
+	assert(n >= 1);
+	argt[0] = PA_POINTER;
+	return (1);
+}
+#define MINUTE 60
+#define HOUR	(60 * MINUTE)
+#define DAY	(24 * HOUR)
+#define YEAR	(365 * DAY)
+
+int
+__printf_render_time(struct __printf_io *io, const struct printf_info *pi, const void *const *arg)
+{
+	char buf[100];
+	char *p;
+	struct timeval *tv;
+	struct timespec *ts;
+	time_t *tp;
+	intmax_t t, tx;
+	int i, prec, nsec, ret;
+
+	if (pi->is_long) {
+		tv = *((struct timeval **)arg[0]);
+		t = tv->tv_sec;
+		nsec = tv->tv_usec * 1000;
+		prec = 6;
+	} else if (pi->is_long_double) {
+		ts = *((struct timespec **)arg[0]);
+		t = ts->tv_sec;
+		nsec = ts->tv_nsec;
+		prec = 9;
+	} else {
+		tp = *((time_t **)arg[0]);
+		t = *tp;
+		nsec = 0;
+		prec = 0;
+	}
+	if (pi->is_long || pi->is_long_double) {
+		if (pi->prec >= 0) 
+			prec = pi->prec;
+		if (prec == 0)
+			nsec = 0;
+	}
+
+	p = buf;
+	if (pi->alt) {
+		tx = t;
+		if (t >= YEAR) {
+			p += sprintf(p, "%jdy", t / YEAR);
+			t %= YEAR;
+		}
+		if (tx >= DAY && (t != 0 || prec != 0)) {
+			p += sprintf(p, "%jdd", t / DAY);
+			t %= DAY;
+		}
+		if (tx >= HOUR && (t != 0 || prec != 0)) {
+			p += sprintf(p, "%jdh", t / HOUR);
+			t %= HOUR;
+		}
+		if (tx >= MINUTE && (t != 0 || prec != 0)) {
+			p += sprintf(p, "%jdm", t / MINUTE);
+			t %= MINUTE;
+		}
+		if (t != 0 || tx == 0 || prec != 0)
+			p += sprintf(p, "%jds", t);
+	} else  {
+		p += sprintf(p, "%jd", (intmax_t)t);
+	}
+	if (prec != 0) {
+		for (i = prec; i < 9; i++)
+			nsec /= 10;
+		p += sprintf(p, ".%.*d", prec, nsec);
+	}
+	ret = __printf_out(io, pi, buf, p - buf);
+	__printf_flush(io);
+	return (ret);
+}