git.sur5r.net Git - cc65/blob - src/common/strutil.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 strutil.h                                 */
   4 /*                                                                           */
   5 /*                         String utility functions                          */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2001     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 <string.h>
  37
  38 /* common */
  39 #include "strutil.h"
  40
  41
  42
  43 /*****************************************************************************/
  44 /*                                   Code                                    */
  45 /*****************************************************************************/
  46
  47
  48
  49 char* StrCopy (char* Dest, size_t DestSize, const char* Source)
  50 /* Copy Source to Dest honouring the maximum size of the target buffer. In
  51  * constrast to strncpy, the resulting string will always be NUL terminated.
  52  * The function returns the pointer to the destintation buffer.
  53  */
  54 {
  55     size_t Len = strlen (Source);
  56     if (Len >= DestSize) {
  57         memcpy (Dest, Source, DestSize-1);
  58         Dest[DestSize-1] = '\0';
  59     } else {
  60         memcpy (Dest, Source, Len+1);
  61     }
  62     return Dest;
  63 }
  64
  65
  66