Adding upstream version 2.2.4.upstream/2.2.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 289 insertions, 0 deletions

diff --git a/apt-pkg/deb/debsrcrecords.cc b/apt-pkg/deb/debsrcrecords.cc
new file mode 100644
index 0000000..0b6cf1f
--- /dev/null
+++ b/apt-pkg/deb/debsrcrecords.cc
@@ -0,0 +1,289 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+   
+   Debian Source Package Records - Parser implementation for Debian style
+                                   source indexes
+      
+   ##################################################################### */
+									/*}}}*/
+// Include Files							/*{{{*/
+#include <config.h>
+
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/deblistparser.h>
+#include <apt-pkg/debsrcrecords.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/gpgv.h>
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/srcrecords.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/tagfile-keys.h>
+#include <apt-pkg/tagfile.h>
+
+#include <algorithm>
+#include <string>
+#include <vector>
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+									/*}}}*/
+
+using std::max;
+using std::string;
+
+debSrcRecordParser::debSrcRecordParser(std::string const &File,pkgIndexFile const *Index)
+   : Parser(Index), d(NULL), Tags(&Fd), iOffset(0), Buffer(NULL)
+{
+   if (File.empty() == false)
+   {
+      if (Fd.Open(File, FileFd::ReadOnly, FileFd::Extension))
+	 Tags.Init(&Fd, 102400);
+   }
+}
+std::string debSrcRecordParser::Package() const				/*{{{*/
+{
+   auto const name = Sect.Find(pkgTagSection::Key::Package);
+   if (iIndex != nullptr || name.empty() == false)
+      return name.to_string();
+   return Sect.Find(pkgTagSection::Key::Source).to_string();
+}
+									/*}}}*/
+// SrcRecordParser::Binaries - Return the binaries field		/*{{{*/
+// ---------------------------------------------------------------------
+/* This member parses the binaries field into a pair of class arrays and
+   returns a list of strings representing all of the components of the
+   binaries field. The returned array need not be freed and will be
+   reused by the next Binaries function call. This function is commonly
+   used during scanning to find the right package */
+const char **debSrcRecordParser::Binaries()
+{
+   const char *Start, *End;
+   if (Sect.Find(pkgTagSection::Key::Binary, Start, End) == false)
+      return NULL;
+   for (; isspace_ascii(*Start) != 0; ++Start);
+   if (Start >= End)
+      return NULL;
+
+   StaticBinList.clear();
+   free(Buffer);
+   Buffer = strndup(Start, End - Start);
+
+   char* bin = Buffer;
+   do {
+      char* binStartNext = strchrnul(bin, ',');
+      // Found a comma, clean up any space before it
+      if (binStartNext > Buffer) {
+	 char* binEnd = binStartNext - 1;
+	 for (; binEnd > Buffer && isspace_ascii(*binEnd) != 0; --binEnd)
+	    *binEnd = 0;
+      }
+      StaticBinList.push_back(bin);
+      if (*binStartNext != ',')
+	 break;
+      *binStartNext = '\0';
+      for (bin = binStartNext + 1; isspace_ascii(*bin) != 0; ++bin)
+         ;
+   } while (*bin != '\0');
+   StaticBinList.push_back(NULL);
+
+   return &StaticBinList[0];
+}
+									/*}}}*/
+// SrcRecordParser::BuildDepends - Return the Build-Depends information	/*{{{*/
+// ---------------------------------------------------------------------
+/* This member parses the build-depends information and returns a list of 
+   package/version records representing the build dependency. The returned 
+   array need not be freed and will be reused by the next call to this 
+   function */
+bool debSrcRecordParser::BuildDepends(std::vector<pkgSrcRecords::Parser::BuildDepRec> &BuildDeps,
+					bool const &ArchOnly, bool const &StripMultiArch)
+{
+   BuildDeps.clear();
+
+   pkgTagSection::Key const fields[] = {
+      pkgTagSection::Key::Build_Depends,
+      pkgTagSection::Key::Build_Depends_Indep,
+      pkgTagSection::Key::Build_Conflicts,
+      pkgTagSection::Key::Build_Conflicts_Indep,
+      pkgTagSection::Key::Build_Depends_Arch,
+      pkgTagSection::Key::Build_Conflicts_Arch,
+   };
+   for (unsigned short I = 0; I < sizeof(fields) / sizeof(fields[0]); ++I)
+   {
+      if (ArchOnly && (fields[I] == pkgTagSection::Key::Build_Depends_Indep || fields[I] == pkgTagSection::Key::Build_Conflicts_Indep))
+	 continue;
+
+      const char *Start, *Stop;
+      if (Sect.Find(fields[I], Start, Stop) == false)
+         continue;
+
+      if (Start == Stop)
+	 continue;
+
+      while (1)
+      {
+	 BuildDepRec rec;
+	 Start = debListParser::ParseDepends(Start, Stop,
+					     rec.Package, rec.Version, rec.Op, true, StripMultiArch, true);
+
+	 if (Start == 0)
+	    return _error->Error("Problem parsing dependency: %s", BuildDepType(I));
+	 rec.Type = I;
+
+	 // We parsed a package that was ignored (wrong architecture restriction
+	 // or something).
+	 if (rec.Package.empty())
+	 {
+	    // If we are in an OR group, we need to set the "Or" flag of the
+	    // previous entry to our value.
+	    if (BuildDeps.empty() == false && (BuildDeps[BuildDeps.size() - 1].Op & pkgCache::Dep::Or) == pkgCache::Dep::Or)
+	    {
+	       BuildDeps[BuildDeps.size() - 1].Op &= ~pkgCache::Dep::Or;
+	       BuildDeps[BuildDeps.size() - 1].Op |= (rec.Op & pkgCache::Dep::Or);
+	    }
+	 } else {
+	    BuildDeps.emplace_back(std::move(rec));
+	 }
+
+	 if (Start == Stop)
+	    break;
+      }
+   }
+
+   return true;
+}
+									/*}}}*/
+// SrcRecordParser::Files - Return a list of files for this source	/*{{{*/
+// ---------------------------------------------------------------------
+/* This parses the list of files and returns it, each file is required to have
+   a complete source package */
+bool debSrcRecordParser::Files(std::vector<pkgSrcRecords::File> &List)
+{
+   List.clear();
+
+   // Stash the / terminated directory prefix
+   std::string Base = Sect.Find(pkgTagSection::Key::Directory).to_string();
+   if (Base.empty() == false && Base[Base.length()-1] != '/')
+      Base += '/';
+
+   std::vector<std::string> const compExts = APT::Configuration::getCompressorExtensions();
+
+   for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
+   {
+      // derive field from checksum type
+      std::string checksumField("Checksums-");
+      if (strcmp(*type, "MD5Sum") == 0)
+	 checksumField = "Files"; // historic name for MD5 checksums
+      else
+	 checksumField.append(*type);
+
+      string const Files = Sect.FindS(checksumField.c_str());
+      if (Files.empty() == true)
+	 continue;
+
+      // Iterate over the entire list grabbing each triplet
+      const char *C = Files.c_str();
+      while (*C != 0)
+      {
+	 string hash, size, path;
+
+	 // Parse each of the elements
+	 if (ParseQuoteWord(C, hash) == false ||
+	       ParseQuoteWord(C, size) == false ||
+	       ParseQuoteWord(C, path) == false)
+	    return _error->Error("Error parsing file record in %s of source package %s", checksumField.c_str(), Package().c_str());
+
+	 if (iIndex == nullptr && checksumField == "Files")
+	 {
+	    // the Files field has a different format than the rest in deb-changes files
+	    std::string ignore;
+	    if (ParseQuoteWord(C, ignore) == false ||
+		  ParseQuoteWord(C, path) == false)
+	       return _error->Error("Error parsing file record in %s of source package %s", checksumField.c_str(), Package().c_str());
+	 }
+
+	 HashString const hashString(*type, hash);
+	 if (Base.empty() == false)
+	    path = Base + path;
+
+	 // look if we have a record for this file already
+	 std::vector<pkgSrcRecords::File>::iterator file = List.begin();
+	 for (; file != List.end(); ++file)
+	    if (file->Path == path)
+	       break;
+
+	 // we have it already, store the new hash and be done
+	 if (file != List.end())
+	 {
+	    // an error here indicates that we have two different hashes for the same file
+	    if (file->Hashes.push_back(hashString) == false)
+	       return _error->Error("Error parsing checksum in %s of source package %s", checksumField.c_str(), Package().c_str());
+	    continue;
+	 }
+
+	 // we haven't seen this file yet
+	 pkgSrcRecords::File F;
+	 F.Path = path;
+	 F.FileSize = strtoull(size.c_str(), NULL, 10);
+	 F.Hashes.push_back(hashString);
+	 F.Hashes.FileSize(F.FileSize);
+
+	 // Try to guess what sort of file it is we are getting.
+	 string::size_type Pos = F.Path.length()-1;
+	 while (1)
+	 {
+	    string::size_type Tmp = F.Path.rfind('.',Pos);
+	    if (Tmp == string::npos)
+	       break;
+	    if (F.Type == "tar") {
+	       // source v3 has extension 'debian.tar.*' instead of 'diff.*'
+	       if (string(F.Path, Tmp+1, Pos-Tmp) == "debian")
+		  F.Type = "diff";
+	       break;
+	    }
+	    F.Type = string(F.Path,Tmp+1,Pos-Tmp);
+
+	    if (std::find(compExts.begin(), compExts.end(), std::string(".").append(F.Type)) != compExts.end() ||
+		  F.Type == "tar")
+	    {
+	       Pos = Tmp-1;
+	       continue;
+	    }
+
+	    break;
+	 }
+	 List.push_back(F);
+      }
+   }
+
+   return true;
+}
+									/*}}}*/
+// SrcRecordParser::~SrcRecordParser - Destructor			/*{{{*/
+// ---------------------------------------------------------------------
+/* */
+debSrcRecordParser::~debSrcRecordParser()
+{
+   // was allocated via strndup()
+   free(Buffer);
+}
+									/*}}}*/
+
+
+debDscRecordParser::debDscRecordParser(std::string const &DscFile, pkgIndexFile const *Index)
+   : debSrcRecordParser("", Index)
+{
+   // support clear signed files
+   if (OpenMaybeClearSignedFile(DscFile, Fd) == false)
+   {
+      _error->Error("Failed to open %s", DscFile.c_str());
+      return;
+   }
+
+   // re-init to ensure the updated Fd is used
+   Tags.Init(&Fd, pkgTagFile::SUPPORT_COMMENTS);
+   // read the first (and only) record
+   Step();
+
+}