switch to avr-libc 1.8.1 time library

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

diff --git a/time/asctime_r.c b/time/asctime_r.c
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+++ b/time/asctime_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: asctime_r.c 2357 2013-04-21 16:25:30Z swfltek $ */
+
+/*
+       Re-entrant version of asctime().
+
+*/
+#include <time.h>
+#include <stdlib.h>
+
+#ifdef __MEMX
+const __memx char ascmonths[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+const __memx char ascdays[] = "SunMonTueWedThuFriSat";
+#else
+const char      ascmonths[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+const char      ascdays[] = "SunMonTueWedThuFriSat";
+#endif
+
+extern void __print_lz(int , char *, char );
+
+void
+asctime_r(const struct tm * timeptr, char *buffer)
+{
+       unsigned char   i, m, d;
+       div_t result;
+
+       d = timeptr->tm_wday * 3;
+       m = timeptr->tm_mon * 3;
+       for (i = 0; i < 3; i++) {
+           buffer[i] = ascdays[d++];
+           buffer[i+4] = ascmonths[m++];
+       }
+       buffer[3]=buffer[7]=' ';
+       buffer += 8;
+
+       __print_lz(timeptr->tm_mday,buffer,' ');
+       buffer += 3;
+
+       __print_lz(timeptr->tm_hour,buffer,':');
+       buffer += 3;
+
+       __print_lz(timeptr->tm_min,buffer,':');
+       buffer += 3;
+
+       __print_lz(timeptr->tm_sec,buffer,' ');
+       buffer += 3;
+
+       result = div(timeptr->tm_year + 1900 , 100);
+
+       __print_lz(result.quot,buffer,' ');
+       buffer += 2;
+
+       __print_lz(result.rem,buffer,0);
+
+}