methods/copy.cc

   1 extern "C" {
   2     #include <mach-o/nlist.h>
   3 }
   4
   5 // -*- mode: cpp; mode: fold -*-
   6 // Description                                                          /*{{{*/
   7 // $Id: copy.cc,v 1.7.2.1 2004/01/16 18:58:50 mdz Exp $
   8 /* ######################################################################
   9
  10    Copy URI - This method takes a uri like a file: uri and copies it
  11    to the destination file.
  12
  13    ##################################################################### */
  14                                                                         /*}}}*/
  15 // Include Files                                                        /*{{{*/
  16 #include <apt-pkg/fileutl.h>
  17 #include <apt-pkg/acquire-method.h>
  18 #include <apt-pkg/error.h>
  19
  20 #include <sys/stat.h>
  21 #include <utime.h>
  22 #include <unistd.h>
  23 #include <apti18n.h>
  24                                                                         /*}}}*/
  25
  26 class CopyMethod : public pkgAcqMethod
  27 {
  28    virtual bool Fetch(FetchItem *Itm);
  29
  30    public:
  31
  32    CopyMethod() : pkgAcqMethod("1.0",SingleInstance) {};
  33 };
  34
  35 // CopyMethod::Fetch - Fetch a file                                     /*{{{*/
  36 // ---------------------------------------------------------------------
  37 /* */
  38 bool CopyMethod::Fetch(FetchItem *Itm)
  39 {
  40    URI Get = Itm->Uri;
  41    string File = Get.Path;
  42
  43    // Stat the file and send a start message
  44    struct stat Buf;
  45    if (stat(File.c_str(),&Buf) != 0)
  46       return _error->Errno("stat",_("Failed to stat"));
  47
  48    // Forumulate a result and send a start message
  49    FetchResult Res;
  50    Res.Size = Buf.st_size;
  51    Res.Filename = Itm->DestFile;
  52    Res.LastModified = Buf.st_mtime;
  53    Res.IMSHit = false;
  54    URIStart(Res);
  55
  56    // See if the file exists
  57    FileFd From(File,FileFd::ReadOnly);
  58    FileFd To(Itm->DestFile,FileFd::WriteEmpty);
  59    To.EraseOnFailure();
  60    if (_error->PendingError() == true)
  61    {
  62       To.OpFail();
  63       return false;
  64    }
  65
  66    // Copy the file
  67    if (CopyFile(From,To) == false)
  68    {
  69       To.OpFail();
  70       return false;
  71    }
  72
  73    From.Close();
  74    To.Close();
  75
  76    // Transfer the modification times
  77    struct utimbuf TimeBuf;
  78    TimeBuf.actime = Buf.st_atime;
  79    TimeBuf.modtime = Buf.st_mtime;
  80    if (utime(Itm->DestFile.c_str(),&TimeBuf) != 0)
  81    {
  82       To.OpFail();
  83       return _error->Errno("utime",_("Failed to set modification time"));
  84    }
  85
  86    URIDone(Res);
  87    return true;
  88 }
  89                                                                         /*}}}*/
  90
  91 int main()
  92 {
  93 #if !defined(__ENVIRONMENT_ASPEN_VERSION_MIN_REQUIRED__) || __ENVIRONMENT_ASPEN_VERSION_MIN_REQUIRED__ < 10200
  94    struct nlist nl[2];
  95    memset(nl, 0, sizeof(nl));
  96    nl[0].n_un.n_name = (char *) "_useMDNSResponder";
  97    nlist("/usr/lib/libc.dylib", nl);
  98    if (nl[0].n_type != N_UNDF)
  99        *(int *) nl[0].n_value = 0;
 100 #endif
 101
 102    setlocale(LC_ALL, "");
 103
 104    CopyMethod Mth;
 105    return Mth.Run();
 106 }