apt-pkg/contrib/md5.cc: fix md5sum by using the right type (unsinged char*) and avoid...

[apt.git] / apt-pkg / tagfile.cc

diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc
index 1c41f1265c206c0a9c77605ead7f94bfb3325298..b7245073d3152237d22f36e95fea31244d797316 100644 (file)
--- a/apt-pkg/tagfile.cc
+++ b/apt-pkg/tagfile.cc
@@ -193,17 +193,8 @@ bool pkgTagFile::Jump(pkgTagSection &Tag,unsigned long Offset)
                                                                        /*}}}*/
 // TagSection::Scan - Scan for the end of the header information       /*{{{*/
 // ---------------------------------------------------------------------
-/* This looks for the first double new line in the data stream. It also
-   indexes the tags in the section. This very simple hash function for the
-   last 8 letters gives very good performance on the debian package files */
-inline static unsigned long AlphaHash(const char *Text, const char *End = 0)
-{
-   unsigned long Res = 0;
-   for (; Text != End && *Text != ':' && *Text != 0; Text++)
-      Res = ((unsigned long)(*Text) & 0xDF) ^ (Res << 1);
-   return Res & 0xFF;
-}
-
+/* This looks for the first double new line in the data stream.
+   It also indexes the tags in the section. */
 bool pkgTagSection::Scan(const char *Start,unsigned long MaxLength)
 {
    const char *End = Start + MaxLength;
@@ -374,6 +365,30 @@ signed int pkgTagSection::FindI(const char *Tag,signed long Default) const
    return Result;
 }
                                                                        /*}}}*/
+// TagSection::FindULL - Find an unsigned long long integer            /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+unsigned long long pkgTagSection::FindULL(const char *Tag, unsigned long long const &Default) const
+{
+   const char *Start;
+   const char *Stop;
+   if (Find(Tag,Start,Stop) == false)
+      return Default;
+
+   // Copy it into a temp buffer so we can use strtoull
+   char S[100];
+   if ((unsigned)(Stop - Start) >= sizeof(S))
+      return Default;
+   strncpy(S,Start,Stop-Start);
+   S[Stop - Start] = 0;
+   
+   char *End;
+   unsigned long long Result = strtoull(S,&End,10);
+   if (S == End)
+      return Default;
+   return Result;
+}
+                                                                       /*}}}*/
 // TagSection::FindFlag - Locate a yes/no type flag                    /*{{{*/
 // ---------------------------------------------------------------------
 /* The bits marked in Flag are masked on/off in Flags */
@@ -384,9 +399,13 @@ bool pkgTagSection::FindFlag(const char *Tag,unsigned long &Flags,
    const char *Stop;
    if (Find(Tag,Start,Stop) == false)
       return true;
-   
-   switch (StringToBool(string(Start,Stop)))
-   {     
+   return FindFlag(Flags, Flag, Start, Stop);
+}
+bool const pkgTagSection::FindFlag(unsigned long &Flags, unsigned long Flag,
+                                       char const* Start, char const* Stop)
+{
+   switch (StringToBool(string(Start, Stop)))
+   {
       case 0:
       Flags &= ~Flag;
       return true;
@@ -438,6 +457,7 @@ static const char *iTFRewritePackageOrder[] = {
                           "MD5Sum",
                           "SHA1",
                           "SHA256",
+                          "SHA512",
                            "MSDOS-Filename",   // Obsolete
                           "Description",
                           0};