git.sur5r.net Git - cc65/blob - libsrc/common/asctime.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                   asctime.c                               */
   4 /*                                                                           */
   5 /*                 Convert a broken down time into a string                  */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2002      Ullrich von Bassewitz                                       */
  10 /*               Wacholderweg 14                                             */
  11 /*               D-70597 Stuttgart                                           */
  12 /* EMail:        uz@musoftware.de                                            */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #include <stdio.h>
  37 #include <time.h>
  38
  39
  40
  41 /*****************************************************************************/
  42 /*                                   Code                                    */
  43 /*****************************************************************************/
  44
  45
  46
  47 char* __fastcall__ asctime (const struct tm* timep)
  48 {
  49     static const char days[7][4]  = {
  50         "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
  51     };
  52     static const char months[12][4] = {
  53         "Jan", "Feb", "Mar", "Apr", "May", "Jun",
  54         "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
  55     };
  56     static char buf[26];
  57
  58     /* Create a copy of the given data and make sure it is valid */
  59     struct tm t;
  60     t = *timep;
  61     mktime (&t);
  62
  63     /* Format into given buffer */
  64     sprintf(buf,
  65             "%s %s%3d %02d:%02d:%02d %d\n",
  66             days[t.tm_wday],
  67             months[t.tm_mon],
  68             t.tm_mday,
  69             t.tm_hour,
  70             t.tm_min,
  71             t.tm_sec,
  72             t.tm_year + 1900);
  73
  74     /* Return the result */
  75     return buf;
  76 }
  77
  78
  79