Use some semantically more correct buffer operations

[apt.git] / methods / copy.cc

diff --git a/methods/copy.cc b/methods/copy.cc
index 4cbfa35324676ab6b632e3c4485d0d51f95f13d1..e515b2def10e1eed04abd89709915703470ec684 100644 (file)
--- a/methods/copy.cc
+++ b/methods/copy.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description                                                         /*{{{*/
-// $Id: copy.cc,v 1.8 2004/01/07 20:39:38 mdz Exp $
+// $Id: copy.cc,v 1.7.2.1 2004/01/16 18:58:50 mdz Exp $
 /* ######################################################################
 
    Copy URI - This method takes a uri like a file: uri and copies it
@@ -9,23 +9,30 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
+#include <config.h>
+
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/strutl.h>
 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/error.h>
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/configuration.h>
+#include "aptmethod.h"
 
+#include <string>
 #include <sys/stat.h>
-#include <utime.h>
-#include <unistd.h>
+#include <sys/time.h>
+
 #include <apti18n.h>
                                                                        /*}}}*/
 
-class CopyMethod : public pkgAcqMethod
+class CopyMethod : public aptMethod
 {
-   virtual bool Fetch(FetchItem *Itm);
-   
+   virtual bool Fetch(FetchItem *Itm) APT_OVERRIDE;
+
    public:
-   
-   CopyMethod() : pkgAcqMethod("1.0",SingleInstance) {};
+
+   CopyMethod() : aptMethod("copy", "1.0",SingleInstance | SendConfig) {};
 };
 
 // CopyMethod::Fetch - Fetch a file                                    /*{{{*/
@@ -33,8 +40,8 @@ class CopyMethod : public pkgAcqMethod
 /* */
 bool CopyMethod::Fetch(FetchItem *Itm)
 {
-   URI Get = Itm->Uri;
-   string File = Get.Path;
+   // this ensures that relative paths work in copy
+   std::string const File = Itm->Uri.substr(Itm->Uri.find(':')+1);
 
    // Stat the file and send a start message
    struct stat Buf;
@@ -46,19 +53,22 @@ bool CopyMethod::Fetch(FetchItem *Itm)
    Res.Size = Buf.st_size;
    Res.Filename = Itm->DestFile;
    Res.LastModified = Buf.st_mtime;
-   Res.IMSHit = false;      
+   Res.IMSHit = false;
    URIStart(Res);
-   
+
+   // just calc the hashes if the source and destination are identical
+   if (File == Itm->DestFile || Itm->DestFile == "/dev/null")
+   {
+      CalculateHashes(Itm, Res);
+      URIDone(Res);
+      return true;
+   }
+
    // See if the file exists
    FileFd From(File,FileFd::ReadOnly);
-   FileFd To(Itm->DestFile,FileFd::WriteEmpty);
+   FileFd To(Itm->DestFile,FileFd::WriteAtomic);
    To.EraseOnFailure();
-   if (_error->PendingError() == true)
-   {
-      To.OpFail();
-      return false;
-   }
-   
+
    // Copy the file
    if (CopyFile(From,To) == false)
    {
@@ -68,17 +78,16 @@ bool CopyMethod::Fetch(FetchItem *Itm)
 
    From.Close();
    To.Close();
-   
+
    // Transfer the modification times
-   struct utimbuf TimeBuf;
-   TimeBuf.actime = Buf.st_atime;
-   TimeBuf.modtime = Buf.st_mtime;
-   if (utime(Itm->DestFile.c_str(),&TimeBuf) != 0)
-   {
-      To.OpFail();
-      return _error->Errno("utime",_("Failed to set modification time"));
-   }
-   
+   struct timeval times[2];
+   times[0].tv_sec = Buf.st_atime;
+   times[1].tv_sec = Buf.st_mtime;
+   times[0].tv_usec = times[1].tv_usec = 0;
+   if (utimes(Res.Filename.c_str(), times) != 0)
+      return _error->Errno("utimes",_("Failed to set modification time"));
+
+   CalculateHashes(Itm, Res);
    URIDone(Res);
    return true;
 }
@@ -86,6 +95,9 @@ bool CopyMethod::Fetch(FetchItem *Itm)
 
 int main()
 {
+   setlocale(LC_ALL, "");
+
    CopyMethod Mth;
+
    return Mth.Run();
 }