X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/6df63aa65815d1eedf6ab9201754c3ee1ea90869..2ea152b6fb5799f180d4133dc76c52cf1a122f54:/apt-pkg/contrib/configuration.cc diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc index b8c806e28..14a000fa5 100644 --- a/apt-pkg/contrib/configuration.cc +++ b/apt-pkg/contrib/configuration.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: configuration.cc,v 1.21 2001/04/29 05:24:42 jgg Exp $ +// $Id: configuration.cc,v 1.28 2004/04/30 04:00:15 mdz Exp $ /* ###################################################################### Configuration Class @@ -8,6 +8,9 @@ This class provides a configuration file and command line parser for a tree-oriented configuration environment. All runtime configuration is stored in here. + + This source is placed in the Public Domain, do with it what you will + It was originally written by Jason Gunthorpe . ##################################################################### */ /*}}}*/ @@ -24,11 +27,14 @@ #include #include #include +#include #include #include #include #include + +using namespace std; /*}}}*/ Configuration *_config = new Configuration; @@ -92,7 +98,7 @@ Configuration::Item *Configuration::Lookup(Item *Head,const char *S, if (Len != 0) { for (; I != 0; Last = &I->Next, I = I->Next) - if ((Res = stringcasecmp(I->Tag.begin(),I->Tag.end(),S,S + Len)) == 0) + if ((Res = stringcasecmp(I->Tag,S,S + Len)) == 0) break; } else @@ -104,7 +110,7 @@ Configuration::Item *Configuration::Lookup(Item *Head,const char *S, return 0; I = new Item; - I->Tag = string(S,Len); + I->Tag.assign(S,Len); I->Next = *Last; I->Parent = Head; *Last = I; @@ -155,7 +161,7 @@ string Configuration::Find(const char *Name,const char *Default) const if (Itm == 0 || Itm->Value.empty() == true) { if (Default == 0) - return string(); + return ""; else return Default; } @@ -174,7 +180,7 @@ string Configuration::FindFile(const char *Name,const char *Default) const if (Itm == 0 || Itm->Value.empty() == true) { if (Default == 0) - return string(); + return ""; else return Default; } @@ -276,7 +282,7 @@ string Configuration::FindAny(const char *Name,const char *Default) const case 'i': { char buf[16]; - snprintf(buf, sizeof(buf)-1, "%d", FindI(key, atoi(Default))); + snprintf(buf, sizeof(buf)-1, "%d", FindI(key, Default ? atoi(Default) : 0 )); return buf; } } @@ -288,7 +294,7 @@ string Configuration::FindAny(const char *Name,const char *Default) const // Configuration::CndSet - Conditinal Set a value /*{{{*/ // --------------------------------------------------------------------- /* This will not overwrite */ -void Configuration::CndSet(const char *Name,string Value) +void Configuration::CndSet(const char *Name,const string &Value) { Item *Itm = Lookup(Name,true); if (Itm == 0) @@ -300,7 +306,7 @@ void Configuration::CndSet(const char *Name,string Value) // Configuration::Set - Set a value /*{{{*/ // --------------------------------------------------------------------- /* */ -void Configuration::Set(const char *Name,string Value) +void Configuration::Set(const char *Name,const string &Value) { Item *Itm = Lookup(Name,true); if (Itm == 0) @@ -319,6 +325,47 @@ void Configuration::Set(const char *Name,int Value) char S[300]; snprintf(S,sizeof(S),"%i",Value); Itm->Value = S; +} + /*}}}*/ +// Configuration::Clear - Clear an single value from a list /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void Configuration::Clear(const string Name, int Value) +{ + char S[300]; + snprintf(S,sizeof(S),"%i",Value); + Clear(Name, S); +} + /*}}}*/ +// Configuration::Clear - Clear an single value from a list /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void Configuration::Clear(const string Name, string Value) +{ + Item *Top = Lookup(Name.c_str(),false); + if (Top == 0 || Top->Child == 0) + return; + + Item *Tmp, *Prev, *I; + Prev = I = Top->Child; + + while(I != NULL) + { + if(I->Value == Value) + { + Tmp = I; + // was first element, point parent to new first element + if(Top->Child == Tmp) + Top->Child = I->Next; + I = I->Next; + Prev->Next = I; + delete Tmp; + } else { + Prev = I; + I = I->Next; + } + } + } /*}}}*/ // Configuration::Clear - Clear an entire tree /*{{{*/ @@ -327,10 +374,10 @@ void Configuration::Set(const char *Name,int Value) void Configuration::Clear(string Name) { Item *Top = Lookup(Name.c_str(),false); - if (Top == 0) + if (Top == 0) return; - - Top->Value = string(); + + Top->Value.clear(); Item *Stop = Top; Top = Top->Child; Stop->Child = 0; @@ -377,13 +424,17 @@ bool Configuration::ExistsAny(const char *Name) const { string key = Name; - if (key.size() > 2 && key.end()[-2] == '/' && - key.find_first_of("fdbi",key.size()-1) < key.size()) - { - key.resize(key.size() - 2); - if (Exists(key.c_str())) - return true; - } + if (key.size() > 2 && key.end()[-2] == '/') + if (key.find_first_of("fdbi",key.size()-1) < key.size()) + { + key.resize(key.size() - 2); + if (Exists(key.c_str())) + return true; + } + else + { + _error->Warning(_("Unrecognized type abbreviation: '%c'"), key.end()[-3]); + } return Exists(Name); } @@ -391,14 +442,14 @@ bool Configuration::ExistsAny(const char *Name) const // Configuration::Dump - Dump the config /*{{{*/ // --------------------------------------------------------------------- /* Dump the entire configuration space */ -void Configuration::Dump() +void Configuration::Dump(ostream& str) { /* Write out all of the configuration directives by walking the configuration tree */ const Configuration::Item *Top = Tree(0); for (; Top != 0;) { - clog << Top->FullTag() << " \"" << Top->Value << "\";" << endl; + str << Top->FullTag() << " \"" << Top->Value << "\";" << endl; if (Top->Child != 0) { @@ -434,15 +485,15 @@ string Configuration::Item::FullTag(const Item *Stop) const sections like 'zone "foo.org" { .. };' This causes each section to be added in with a tag like "zone::foo.org" instead of being split tag/value. AsSectional enables Sectional parsing.*/ -bool ReadConfigFile(Configuration &Conf,string FName,bool AsSectional, +bool ReadConfigFile(Configuration &Conf,const string &FName,bool AsSectional, unsigned Depth) { // Open the stream for reading - ifstream F(FName.c_str(),ios::in | ios::nocreate); + ifstream F(FName.c_str(),ios::in); if (!F != 0) return _error->Errno("ifstream::ifstream",_("Opening configuration file %s"),FName.c_str()); - char Buffer[300]; + char Buffer[1024]; string LineBuffer; string Stack[100]; unsigned int StackPos = 0; @@ -456,6 +507,10 @@ bool ReadConfigFile(Configuration &Conf,string FName,bool AsSectional, { F.getline(Buffer,sizeof(Buffer)); CurLine++; + // This should be made to work instead, but this is better than looping + if (F.fail() && !F.eof()) + return _error->Error(_("Line %d too long (max %d)"), CurLine, sizeof(Buffer)); + _strtabexpand(Buffer,sizeof(Buffer)); _strstrip(Buffer); @@ -569,7 +624,7 @@ bool ReadConfigFile(Configuration &Conf,string FName,bool AsSectional, string Tag; const char *Pos = LineBuffer.c_str(); if (ParseQuoteWord(Pos,Tag) == false) - return _error->Error(_("Syntax error %s:%u: Malformed Tag"),FName.c_str(),CurLine); + return _error->Error(_("Syntax error %s:%u: Malformed tag"),FName.c_str(),CurLine); // Parse off the word string Word; @@ -656,13 +711,13 @@ bool ReadConfigFile(Configuration &Conf,string FName,bool AsSectional, } // Empty the buffer - LineBuffer = string(); + LineBuffer.clear(); // Move up a tag, but only if there is no bit to parse if (TermChar == '}') { if (StackPos == 0) - ParentTag = string(); + ParentTag.clear(); else ParentTag = Stack[--StackPos]; } @@ -687,8 +742,8 @@ bool ReadConfigFile(Configuration &Conf,string FName,bool AsSectional, // ReadConfigDir - Read a directory of config files /*{{{*/ // --------------------------------------------------------------------- /* */ -bool ReadConfigDir(Configuration &Conf,string Dir,bool AsSectional, - unsigned Depth) +bool ReadConfigDir(Configuration &Conf,const string &Dir,bool AsSectional, + unsigned Depth) { DIR *D = opendir(Dir.c_str()); if (D == 0)