switch to avr-libc 1.8.1 time library

[z180-stamp.git] / time / isotime_r.c

diff --git a/time/isotime_r.c b/time/isotime_r.c
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+++ b/time/isotime_r.c
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+/*
+ * (C)2012 Michael Duane Rice All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer. 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. Neither the name of the copyright holders
+ * nor the names of contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ */
+
+/* $Id: isotime_r.c 2365 2013-04-27 15:32:59Z swfltek $ */
+
+/*
+       Re entrant version of isotime(),  which prints the date and time in ISO 8601 format.
+*/
+
+#include <stdlib.h>
+#include <time.h>
+
+extern void __print_lz(int , char *, char );
+
+void
+isotime_r(const struct tm * tmptr, char *buffer)
+{
+       int             i;
+
+       i = tmptr->tm_year + 1900;
+       __print_lz(i/100, buffer, '-');
+       buffer+=2;
+       __print_lz(i%100, buffer,'-');
+       buffer+=3;
+
+       i = tmptr->tm_mon + 1;
+       __print_lz(i, buffer,'-');
+       buffer+=3;
+
+       i = tmptr->tm_mday;
+       __print_lz(i, buffer,' ');
+       buffer+=3;
+
+       i = tmptr->tm_hour;
+       __print_lz(i, buffer,':');
+       buffer+=3;
+
+       i = tmptr->tm_min;
+       __print_lz(i, buffer,':');
+       buffer+=3;
+
+       i = tmptr->tm_sec;
+       __print_lz(i, buffer,0);
+
+}