diff options
Diffstat (limited to 'apt-pkg/tagfile.cc')
-rw-r--r-- | apt-pkg/tagfile.cc | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/apt-pkg/tagfile.cc b/apt-pkg/tagfile.cc index 1c41f1265..96a681bec 100644 --- 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 */ |