diff options
Diffstat (limited to 'apt-pkg/deb/deblistparser.cc')
| -rw-r--r-- | apt-pkg/deb/deblistparser.cc | 20 |
1 files changed, 6 insertions, 14 deletions
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc index 549e75952..15251bce4 100644 --- a/apt-pkg/deb/deblistparser.cc +++ b/apt-pkg/deb/deblistparser.cc @@ -353,7 +353,6 @@ unsigned short debListParser::VersionHash() pkgTagSection::Key::Breaks, pkgTagSection::Key::Replaces}; unsigned long Result = INIT_FCS; - char S[1024]; for (auto I : Sections) { const char *Start; @@ -363,23 +362,16 @@ unsigned short debListParser::VersionHash() /* Strip out any spaces from the text, this undoes dpkgs reformatting of certain fields. dpkg also has the rather interesting notion of - reformatting depends operators < -> <= */ - char *J = S; - for (; Start != End && (J - S) < sizeof(S); ++Start) + reformatting depends operators < -> <=, so we drop all = from the + string to make that not matter. */ + for (; Start != End; ++Start) { - if (isspace_ascii(*Start) != 0) + if (isspace_ascii(*Start) != 0 || *Start == '=') continue; - *J++ = tolower_ascii_unsafe(*Start); - - /* Normalize <= to < and >= to >. This is the wrong way around, but - * more efficient that the right way. And since we're only hashing - * it does not matter which way we normalize. */ - if ((*Start == '<' || *Start == '>') && Start[1] == '=') { - Start++; - } + Result = AddCRC16Byte(Result, tolower_ascii_unsafe(*Start)); } - Result = AddCRC16(Result,S,J - S); + } return Result; |