fix program name detection in rsh method

[apt.git] / methods / gzip.cc

diff --git a/methods/gzip.cc b/methods/gzip.cc
index 5b9b66b50375769f1d528b11c00d116c03e0841d..c470807ac9b73a547ac9cd0b75dc9dbaba164a3e 100644 (file)
--- a/methods/gzip.cc
+++ b/methods/gzip.cc
@@ -9,29 +9,35 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/

-#include <apt-pkg/fileutl.h>
-#include <apt-pkg/error.h>
+#include <config.h>
+
+#include <apt-pkg/configuration.h>

 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/acquire-method.h>

-#include <apt-pkg/strutl.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>

 #include <apt-pkg/hashes.h>
 #include <apt-pkg/hashes.h>

+#include <apt-pkg/strutl.h>
+#include <apt-pkg/aptconfiguration.h>
+#include "aptmethod.h"

 
 

+#include <string.h>

 #include <sys/stat.h>
 #include <sys/stat.h>

-#include <unistd.h>
-#include <utime.h>
-#include <stdio.h>
-#include <errno.h>
+#include <sys/time.h>
+#include <string>
+#include <vector>
+

 #include <apti18n.h>
                                                                        /*}}}*/
 
 #include <apti18n.h>
                                                                        /*}}}*/
 

-class GzipMethod : public pkgAcqMethod
+class GzipMethod : public aptMethod

 {
 {

-   virtual bool Fetch(FetchItem *Itm);
-   
+   std::string const Prog;
+   virtual bool Fetch(FetchItem *Itm) APT_OVERRIDE;
+

    public:
    public:

-   
-   GzipMethod() : pkgAcqMethod("1.1",SingleInstance | SendConfig) {};
-};

 
 

+   explicit GzipMethod(std::string const &pProg) : aptMethod(pProg.c_str(),"1.1",SingleInstance | SendConfig), Prog(pProg) {};
+};

 
 // GzipMethod::Fetch - Decompress the passed URI                       /*{{{*/
 // ---------------------------------------------------------------------
 
 // GzipMethod::Fetch - Decompress the passed URI                       /*{{{*/
 // ---------------------------------------------------------------------


@@ -39,45 +45,68 @@ class GzipMethod : public pkgAcqMethod
 bool GzipMethod::Fetch(FetchItem *Itm)
 {
    URI Get = Itm->Uri;
 bool GzipMethod::Fetch(FetchItem *Itm)
 {
    URI Get = Itm->Uri;

-   string Path = Get.Host + Get.Path; // To account for relative paths
+   std::string Path = Get.Host + Get.Path; // To account for relative paths

    
    FetchResult Res;
    Res.Filename = Itm->DestFile;
    URIStart(Res);
    
    FetchResult Res;
    Res.Filename = Itm->DestFile;
    URIStart(Res);

-   
+
+   std::vector<APT::Configuration::Compressor> const compressors = APT::Configuration::getCompressors();
+   std::vector<APT::Configuration::Compressor>::const_iterator compressor = compressors.begin();
+   for (; compressor != compressors.end(); ++compressor)
+      if (compressor->Name == Prog)
+        break;
+   if (compressor == compressors.end())
+      return _error->Error("Extraction of file %s requires unknown compressor %s", Path.c_str(), Prog.c_str());
+

    // Open the source and destination files
    // Open the source and destination files

-   FileFd From(Path,FileFd::ReadOnlyGzip);
+   FileFd From;
+   if (_config->FindB("Method::Compress", false) == false)
+   {
+      From.Open(Path, FileFd::ReadOnly, *compressor);
+      if(From.FileSize() == 0)
+        return _error->Error(_("Empty files can't be valid archives"));
+   }
+   else
+      From.Open(Path, FileFd::ReadOnly);
+   if (From.IsOpen() == false || From.Failed() == true)
+      return false;

 
 

-   // if the file is empty, just rename it and return
-   if(From.Size() == 0) 
+   FileFd To;
+   if (Itm->DestFile != "/dev/null")

    {
    {

-      rename(Path.c_str(), Itm->DestFile.c_str());
-      return true;
+      if (_config->FindB("Method::Compress", false) == false)
+        To.Open(Itm->DestFile, FileFd::WriteAtomic);
+      else
+        To.Open(Itm->DestFile, FileFd::WriteOnly | FileFd::Create | FileFd::Empty, *compressor);
+
+      if (To.IsOpen() == false || To.Failed() == true)
+        return false;
+      To.EraseOnFailure();

    }
 
    }
 

-   FileFd To(Itm->DestFile,FileFd::WriteAtomic);   
-   To.EraseOnFailure();
-   if (_error->PendingError() == true)
-      return false;
-   
+

    // Read data from source, generate checksums and write
    // Read data from source, generate checksums and write

-   Hashes Hash;
+   Hashes Hash(Itm->ExpectedHashes);

    bool Failed = false;
    bool Failed = false;

+   Res.Size = 0;

    while (1) 
    {
       unsigned char Buffer[4*1024];
    while (1) 
    {
       unsigned char Buffer[4*1024];

-      unsigned long Count;
+      unsigned long long Count = 0;

       
       if (!From.Read(Buffer,sizeof(Buffer),&Count))
       {
       
       if (!From.Read(Buffer,sizeof(Buffer),&Count))
       {

-        To.OpFail();
+        if (To.IsOpen())
+           To.OpFail();

         return false;
       }
       if (Count == 0)
         break;
         return false;
       }
       if (Count == 0)
         break;

+      Res.Size += Count;

 
       Hash.Add(Buffer,Count);
 
       Hash.Add(Buffer,Count);

-      if (To.Write(Buffer,Count) == false)
+      if (To.IsOpen() && To.Write(Buffer,Count) == false)

       {
         Failed = true;
         break;
       {
         Failed = true;
         break;


@@ -86,39 +115,37 @@ bool GzipMethod::Fetch(FetchItem *Itm)
    
    From.Close();
    To.Close();
    
    From.Close();
    To.Close();

-   
+

    if (Failed == true)
       return false;
    if (Failed == true)
       return false;

-   
+

    // Transfer the modification times
    // Transfer the modification times

-   struct stat Buf;
-   if (stat(Path.c_str(),&Buf) != 0)
-      return _error->Errno("stat",_("Failed to stat"));
-
-   struct utimbuf TimeBuf;
-   TimeBuf.actime = Buf.st_atime;
-   TimeBuf.modtime = Buf.st_mtime;
-   if (utime(Itm->DestFile.c_str(),&TimeBuf) != 0)
-      return _error->Errno("utime",_("Failed to set modification time"));
-
-   if (stat(Itm->DestFile.c_str(),&Buf) != 0)
-      return _error->Errno("stat",_("Failed to stat"));
-   
+   if (Itm->DestFile != "/dev/null")
+   {
+      struct stat Buf;
+      if (stat(Path.c_str(),&Buf) != 0)
+        return _error->Errno("stat",_("Failed to stat"));
+
+      struct timeval times[2];
+      times[0].tv_sec = Buf.st_atime;
+      Res.LastModified = times[1].tv_sec = Buf.st_mtime;
+      times[0].tv_usec = times[1].tv_usec = 0;
+      if (utimes(Itm->DestFile.c_str(), times) != 0)
+        return _error->Errno("utimes",_("Failed to set modification time"));
+   }
+

    // Return a Done response
    // Return a Done response

-   Res.LastModified = Buf.st_mtime;
-   Res.Size = Buf.st_size;

    Res.TakeHashes(Hash);
 
    URIDone(Res);
    Res.TakeHashes(Hash);
 
    URIDone(Res);

-   

    return true;
 }
                                                                        /*}}}*/
 
    return true;
 }
                                                                        /*}}}*/
 

-int main(int argc, char *argv[])
+int main(int, char *argv[])

 {
    setlocale(LC_ALL, "");
 
 {
    setlocale(LC_ALL, "");
 

-   GzipMethod Mth;
+   GzipMethod Mth(flNotDir(argv[0]));

    return Mth.Run();
 }
    return Mth.Run();
 }