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-rw-r--r--apt-pkg/tagfile.cc56
1 files changed, 20 insertions, 36 deletions
diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc
index 1e5bc81a4..5443b178e 100644
--- a/apt-pkg/tagfile.cc
+++ b/apt-pkg/tagfile.cc
@@ -1,6 +1,6 @@
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: tagfile.cc,v 1.36 2003/04/27 05:59:14 doogie Exp $
+// $Id: tagfile.cc,v 1.37 2003/05/19 17:13:57 doogie Exp $
/* ######################################################################
Fast scanner for RFC-822 type header information
@@ -42,7 +42,6 @@ pkgTagFile::pkgTagFile(FileFd *pFd,unsigned long Size) : Fd(*pFd), Size(Size)
return;
}
- CurSize = Size;
Buffer = new char[Size];
Start = End = Buffer;
Done = false;
@@ -63,23 +62,15 @@ pkgTagFile::~pkgTagFile()
/* If the Section Scanner fails we refill the buffer and try again. */
bool pkgTagFile::Step(pkgTagSection &Tag)
{
- pkgTagSection::ScanFlags ret = Tag.Scan(Start,End - Start);
- if (ret == pkgTagSection::ScanEOF) {
- CurSize <<= 1;
+ if (Tag.Scan(Start,End - Start) == false)
+ {
if (Fill() == false)
return false;
- do {
- ret = Tag.Scan(Start,End - Start);
- if (ret == pkgTagSection::ScanEOF) {
- CurSize <<= 1;
- if (Fill() == false)
- break;
- }
- } while (ret == pkgTagSection::ScanEOF);
+
+ if (Tag.Scan(Start,End - Start) == false)
+ return _error->Error(_("Unable to parse package file %s (1)"),
+ Fd.Name().c_str());
}
- if (ret != pkgTagSection::ScanSuccess)
- return _error->Error(_("Unable to parse package file %s (1)"),
- Fd.Name().c_str());
Start += Tag.size();
iOffset += Tag.size();
@@ -156,21 +147,14 @@ bool pkgTagFile::Jump(pkgTagSection &Tag,unsigned long Offset)
if (Fill() == false)
return false;
- pkgTagSection::ScanFlags ret = Tag.Scan(Start,End - Start);
- if (ret == pkgTagSection::ScanEOF) {
- CurSize <<= 1;
- if (Fill() == false)
- return false;
- do {
- ret = Tag.Scan(Start,End - Start);
- if (ret == pkgTagSection::ScanEOF) {
- CurSize <<= 1;
- if (Fill() == false)
- break;
- }
- } while (ret == pkgTagSection::ScanEOF);
- }
- if (ret != pkgTagSection::ScanSuccess)
+ if (Tag.Scan(Start,End - Start) == true)
+ return true;
+
+ // This appends a double new line (for the real eof handling)
+ if (Fill() == false)
+ return false;
+
+ if (Tag.Scan(Start,End - Start) == false)
return _error->Error(_("Unable to parse package file %s (2)"),Fd.Name().c_str());
return true;
@@ -189,14 +173,14 @@ inline static unsigned long AlphaHash(const char *Text, const char *End = 0)
return Res & 0xFF;
}
-enum pkgTagSection::ScanFlags pkgTagSection::Scan(const char *Start,unsigned long MaxLength)
+bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength)
{
const char *End = Start + MaxLength;
Stop = Section = Start;
memset(AlphaIndexes,0,sizeof(AlphaIndexes));
if (Stop == 0)
- return ScanError;
+ return false;
TagCount = 0;
while (TagCount+1 < sizeof(Indexes)/sizeof(Indexes[0]) && Stop < End)
@@ -211,7 +195,7 @@ enum pkgTagSection::ScanFlags pkgTagSection::Scan(const char *Start,unsigned lon
Stop = (const char *)memchr(Stop,'\n',End - Stop);
if (Stop == 0)
- return ScanEOF;
+ return false;
for (; Stop+1 < End && Stop[1] == '\r'; Stop++);
@@ -220,13 +204,13 @@ enum pkgTagSection::ScanFlags pkgTagSection::Scan(const char *Start,unsigned lon
{
Indexes[TagCount] = Stop - Section;
for (; Stop < End && (Stop[0] == '\n' || Stop[0] == '\r'); Stop++);
- return ScanSuccess;
+ return true;
}
Stop++;
}
- return ScanEOF;
+ return false;
}
/*}}}*/
// TagSection::Trim - Trim off any trailing garbage /*{{{*/