cygpackage.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 operations.
  17  */
  18
  19 #if 0
  20 static const char *cvsid =
  21   "\n%%% $Id$\n";
  22 #endif
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include "String++.h"
  28
  29 #include "io_stream.h"
  30 #include "compress.h"
  31
  32 #include "package_version.h"
  33 #include "cygpackage.h"
  34
  35 /* this constructor creates an invalid package - further details MUST be provided */
  36 cygpackage::cygpackage (String const &pkgname):
  37 name (pkgname),
  38 vendor (0),
  39 packagev (0),
  40 canonical (0),
  41 fn (0),
  42 sdesc (0),
  43 ldesc (0),
  44 status (package_installed),
  45 type (package_binary),
  46 listdata (0),
  47 listfile (0)
  48 {
  49   memset( getfilenamebuffer, '\0', _MAX_PATH);
  50
  51   /* FIXME: query the install database for the currently installed
  52    * version details
  53    */
  54 }
  55
  56 /* create a package given explicit details - perhaps should be modified to take the
  57    filename and do it's own parsing? */
  58 cygpackage::cygpackage (String const &pkgname, String const &filename, size_t const fs,
  59                         String const &version, package_status_t const newstatus,
  60                         package_type_t const newtype):
  61 name (pkgname),
  62 fn (filename),
  63 sdesc (0),
  64 ldesc (0),
  65 status (newstatus),
  66 type (newtype),
  67 listdata (0),
  68 listfile (0),
  69 filesize (fs)
  70 {
  71   memset( getfilenamebuffer, '\0', _MAX_PATH);
  72   set_canonical_version (version);
  73 }
  74
  75 /* tell the version */
  76 void
  77 cygpackage::set_canonical_version (String const &version)
  78 {
  79   canonical = version;
  80   char *start = strchr (canonical.cstr_oneuse(), '-');
  81   char*curr=start;
  82   if (curr)
  83     {
  84       char *next;
  85       while ((next = strchr (curr + 1, '-')))
  86         curr = next;
  87       /* curr = last - in the version string */
  88       packagev = curr + 1;
  89       char tvendor [version.size() +1];
  90       strcpy (tvendor, version.cstr_oneuse());
  91       tvendor[curr - start] = '\0';
  92       vendor=tvendor;
  93     }
  94   else
  95     {
  96       packagev = 0;
  97       vendor = version;
  98     }
  99   key = canonical;
 100 }
 101
 102 cygpackage::~cygpackage ()
 103 {
 104   destroy ();
 105 }
 106
 107 /* helper functions */
 108
 109 void
 110 cygpackage::destroy ()
 111 {
 112 }
 113
 114 String const
 115 cygpackage::getfirstfile ()
 116 {
 117   if (listdata)
 118     delete listdata;
 119   listfile =
 120     io_stream::open (String ("cygfile:///etc/setup/") + name + ".lst.gz", "rb");
 121   listdata = compress::decompress (listfile);
 122   if (!listdata)
 123     return 0;
 124   return listdata->gets (getfilenamebuffer, sizeof (getfilenamebuffer));
 125 }
 126
 127 String const
 128 cygpackage::getnextfile ()
 129 {
 130   if (listdata)
 131     return listdata->gets (getfilenamebuffer, sizeof (getfilenamebuffer));
 132   return 0;
 133 }
 134
 135 void
 136 cygpackage::uninstall ()
 137 {
 138   if (listdata)
 139     delete listdata;
 140   listdata = 0;
 141   io_stream::remove (String("cygfile:///etc/setup/") + name + ".lst.gz");
 142 }
 143
 144 String const
 145 cygpackage::Name ()
 146 {
 147   return name;
 148 }
 149
 150 String const
 151 cygpackage::Vendor_version ()
 152 {
 153   return vendor;
 154 }
 155
 156 String const
 157 cygpackage::Package_version ()
 158 {
 159   return packagev;
 160 }
 161
 162 String  const
 163 cygpackage::Canonical_version ()
 164 {
 165   return canonical;
 166 }
 167
 168 void
 169 cygpackage::set_sdesc (String const &desc)
 170 {
 171   sdesc = desc;
 172 }
 173
 174 void
 175 cygpackage::set_ldesc (String const &desc)
 176 {
 177   ldesc = desc;
 178 }
 179
 180 #if 0
 181 package_stability_t cygpackage::Stability ()
 182 {
 183   return stability;
 184 }
 185 #endif