package_source.cc

   1 /*
   2  * Copyright (c) 2001, Robert Collins.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by Robert Collins  <rbtcollins@hotmail.com>
  13  *
  14  */
  15
  16 /* this is the parent class for all package source (not source code - installation
  17  * source as in http/ftp/disk file) operations.
  18  */
  19
  20 #if 0
  21 static const char *cvsid =
  22   "\n%%% $Id$\n";
  23 #endif
  24
  25 #include <stdlib.h>
  26 #include <strings.h>
  27 #include "package_source.h"
  28
  29 void
  30 packagesource::set_canonical (char const *fn)
  31 {
  32 canonical = new char[strlen (fn) + 1];
  33   strcpy (canonical,fn);
  34
  35   /* The base is from the last '/' to the first following '.' */
  36   char const *bstart = strchr (fn, '/');
  37   char const *tmp;
  38   while (bstart && (tmp = strchr (bstart, '/')))
  39     bstart = tmp;
  40
  41   if (!bstart)
  42     bstart = fn;
  43   char const *bend = strchr (bstart, '.');
  44   if (!bend)
  45     bend = strchr (bstart, '\0');
  46   char const *end = strchr (fn ,'\0');
  47   base = new char [bend-bstart+1];
  48   memcpy (base,bstart, bend-bstart);
  49   base [bend-bstart] = '\0';
  50
  51   filename = new char [end - bstart+1];
  52   memcpy (filename, bstart, end-bstart);
  53   filename[end-bstart] = '\0';
  54
  55  if (cached)
  56   delete cached;
  57   cached = 0;
  58 }
  59