Libc-997.1.1.tar.gz

[apple/libc.git] / stdio / FreeBSD / xprintf_time.c

diff --git a/stdio/FreeBSD/xprintf_time.c b/stdio/FreeBSD/xprintf_time.c
new file mode 100644 (file)
index 0000000..050fd49
--- /dev/null
+++ b/stdio/FreeBSD/xprintf_time.c
@@ -0,0 +1,123 @@
+/*-
+ * 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: src/lib/libc/stdio/xprintf_time.c,v 1.6 2011/03/06 19:47:46 pjd Exp $
+ */
+#include <namespace.h>
+#include <stdio.h>
+#include <wchar.h>
+#include <stdint.h>
+#include <assert.h>
+#include <sys/time.h>
+#include "printf.h"
+#include "xprintf_private.h"
+
+__private_extern__ 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)
+
+__private_extern__ 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);
+}