X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/115ba31b90e0d6643670d7d079f9f27b0e05f1c2..e5fefea6ec93746376bf42733ee84a9fafeab764:/apt-pkg/contrib/configuration.cc?ds=sidebyside diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc index 81cc87d15..fbe180f8e 100644 --- a/apt-pkg/contrib/configuration.cc +++ b/apt-pkg/contrib/configuration.cc @@ -15,15 +15,26 @@ ##################################################################### */ /*}}}*/ // Include files /*{{{*/ +#include <config.h> + #include <apt-pkg/configuration.h> #include <apt-pkg/error.h> #include <apt-pkg/strutl.h> #include <apt-pkg/fileutl.h> -#include <apti18n.h> - +#include <apt-pkg/macros.h> + +#include <ctype.h> +#include <regex.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <algorithm> +#include <string> #include <vector> #include <fstream> -#include <iostream> + +#include <apti18n.h> using namespace std; /*}}}*/ @@ -39,8 +50,7 @@ Configuration::Configuration() : ToFree(true) } Configuration::Configuration(const Item *Root) : Root((Item *)Root), ToFree(false) { -}; - +} /*}}}*/ // Configuration::~Configuration - Destructor /*{{{*/ // --------------------------------------------------------------------- @@ -168,42 +178,60 @@ string Configuration::Find(const char *Name,const char *Default) const string Configuration::FindFile(const char *Name,const char *Default) const { const Item *RootItem = Lookup("RootDir"); - std::string rootDir = (RootItem == 0) ? "" : RootItem->Value; - if(rootDir.size() > 0 && rootDir[rootDir.size() - 1] != '/') - rootDir.push_back('/'); + std::string result = (RootItem == 0) ? "" : RootItem->Value; + if(result.empty() == false && result[result.size() - 1] != '/') + result.push_back('/'); const Item *Itm = Lookup(Name); if (Itm == 0 || Itm->Value.empty() == true) { - if (Default == 0) - return rootDir; - else - return rootDir + Default; + if (Default != 0) + result.append(Default); } - - string val = Itm->Value; - while (Itm->Parent != 0 && Itm->Parent->Value.empty() == false) - { - // Absolute - if (val.length() >= 1 && val[0] == '/') - break; - - // ~/foo or ./foo - if (val.length() >= 2 && (val[0] == '~' || val[0] == '.') && val[1] == '/') - break; - - // ../foo - if (val.length() >= 3 && val[0] == '.' && val[1] == '.' && val[2] == '/') - break; - - if (Itm->Parent->Value.end()[-1] != '/') - val.insert(0, "/"); + else + { + string val = Itm->Value; + while (Itm->Parent != 0) + { + if (Itm->Parent->Value.empty() == true) + { + Itm = Itm->Parent; + continue; + } + + // Absolute + if (val.length() >= 1 && val[0] == '/') + { + if (val.compare(0, 9, "/dev/null") == 0) + val.erase(9); + break; + } - val.insert(0, Itm->Parent->Value); - Itm = Itm->Parent; + // ~/foo or ./foo + if (val.length() >= 2 && (val[0] == '~' || val[0] == '.') && val[1] == '/') + break; + + // ../foo + if (val.length() >= 3 && val[0] == '.' && val[1] == '.' && val[2] == '/') + break; + + if (Itm->Parent->Value.end()[-1] != '/') + val.insert(0, "/"); + + val.insert(0, Itm->Parent->Value); + Itm = Itm->Parent; + } + result.append(val); } - return rootDir + val; + // do some normalisation by removing // and /./ from the path + size_t found = string::npos; + while ((found = result.find("/./")) != string::npos) + result.replace(found, 3, "/"); + while ((found = result.find("//")) != string::npos) + result.replace(found, 2, "/"); + + return result; } /*}}}*/ // Configuration::FindDir - Find a directory name /*{{{*/ @@ -213,19 +241,32 @@ string Configuration::FindDir(const char *Name,const char *Default) const { string Res = FindFile(Name,Default); if (Res.end()[-1] != '/') + { + size_t const found = Res.rfind("/dev/null"); + if (found != string::npos && found == Res.size() - 9) + return Res; // /dev/null returning return Res + '/'; + } return Res; } /*}}}*/ // Configuration::FindVector - Find a vector of values /*{{{*/ // --------------------------------------------------------------------- /* Returns a vector of config values under the given item */ -vector<string> Configuration::FindVector(const char *Name) const +#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR < 13) +vector<string> Configuration::FindVector(const char *Name) const { + return FindVector(Name, ""); +} +#endif +vector<string> Configuration::FindVector(const char *Name, std::string const &Default) const { vector<string> Vec; const Item *Top = Lookup(Name); if (Top == NULL) - return Vec; + return VectorizeString(Default, ','); + + if (Top->Value.empty() == false) + return VectorizeString(Top->Value, ','); Item *I = Top->Child; while(I != NULL) @@ -233,6 +274,9 @@ vector<string> Configuration::FindVector(const char *Name) const Vec.push_back(I->Value); I = I->Next; } + if (Vec.empty() == true) + return VectorizeString(Default, ','); + return Vec; } /*}}}*/ @@ -318,6 +362,19 @@ void Configuration::CndSet(const char *Name,const string &Value) Itm->Value = Value; } /*}}}*/ +// Configuration::Set - Set an integer value /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void Configuration::CndSet(const char *Name,int const Value) +{ + Item *Itm = Lookup(Name,true); + if (Itm == 0 || Itm->Value.empty() == false) + return; + char S[300]; + snprintf(S,sizeof(S),"%i",Value); + Itm->Value = S; +} + /*}}}*/ // Configuration::Set - Set a value /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -381,6 +438,18 @@ void Configuration::Clear(string const &Name, string const &Value) } } +} + /*}}}*/ +// Configuration::Clear - Clear everything /*{{{*/ +// --------------------------------------------------------------------- +void Configuration::Clear() +{ + const Configuration::Item *Top = Tree(0); + while( Top != 0 ) + { + Clear(Top->FullTag()); + Top = Top->Next; + } } /*}}}*/ // Configuration::Clear - Clear an entire tree /*{{{*/ @@ -460,24 +529,80 @@ bool Configuration::ExistsAny(const char *Name) const /* Dump the entire configuration space */ void Configuration::Dump(ostream& str) { - /* Write out all of the configuration directives by walking the + Dump(str, NULL, "%f \"%v\";\n", true); +} +void Configuration::Dump(ostream& str, char const * const root, + char const * const formatstr, bool const emptyValue) +{ + const Configuration::Item* Top = Tree(root); + if (Top == 0) + return; + const Configuration::Item* const Root = (root == NULL) ? NULL : Top; + std::vector<std::string> const format = VectorizeString(formatstr, '%'); + + /* Write out all of the configuration directives by walking the configuration tree */ - const Configuration::Item *Top = Tree(0); - for (; Top != 0;) - { - str << Top->FullTag() << " \"" << Top->Value << "\";" << endl; - + do { + if (emptyValue == true || Top->Value.empty() == emptyValue) + { + std::vector<std::string>::const_iterator f = format.begin(); + str << *f; + for (++f; f != format.end(); ++f) + { + if (f->empty() == true) + { + ++f; + str << '%' << *f; + continue; + } + char const type = (*f)[0]; + if (type == 'f') + str << Top->FullTag(); + else if (type == 't') + str << Top->Tag; + else if (type == 'v') + str << Top->Value; + else if (type == 'F') + str << QuoteString(Top->FullTag(), "=\"\n"); + else if (type == 'T') + str << QuoteString(Top->Tag, "=\"\n"); + else if (type == 'V') + str << QuoteString(Top->Value, "=\"\n"); + else if (type == 'n') + str << "\n"; + else if (type == 'N') + str << "\t"; + else + str << '%' << type; + str << f->c_str() + 1; + } + } + if (Top->Child != 0) { Top = Top->Child; continue; } - + while (Top != 0 && Top->Next == 0) Top = Top->Parent; if (Top != 0) Top = Top->Next; - } + + if (Root != NULL) + { + const Configuration::Item* I = Top; + while(I != 0) + { + if (I == Root) + break; + else + I = I->Parent; + } + if (I == 0) + break; + } + } while (Top != 0); } /*}}}*/ @@ -659,9 +784,9 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool const &AsSectio // Put the last fragment into the buffer std::string::const_iterator NonWhitespaceStart = Start; std::string::const_iterator NonWhitespaceStop = I; - for (; NonWhitespaceStart != I && isspace(*NonWhitespaceStart) != 0; NonWhitespaceStart++) + for (; NonWhitespaceStart != I && isspace(*NonWhitespaceStart) != 0; ++NonWhitespaceStart) ; - for (; NonWhitespaceStop != NonWhitespaceStart && isspace(NonWhitespaceStop[-1]) != 0; NonWhitespaceStop--) + for (; NonWhitespaceStop != NonWhitespaceStart && isspace(NonWhitespaceStop[-1]) != 0; --NonWhitespaceStop) ; if (LineBuffer.empty() == false && NonWhitespaceStop - NonWhitespaceStart != 0) LineBuffer += ' '; @@ -716,7 +841,7 @@ bool ReadConfigFile(Configuration &Conf,const string &FName,bool const &AsSectio // Go down a level if (TermChar == '{') { - if (StackPos <= 100) + if (StackPos < sizeof(Stack)/sizeof(std::string)) Stack[StackPos++] = ParentTag; /* Make sectional tags incorperate the section into the @@ -837,7 +962,7 @@ bool ReadConfigDir(Configuration &Conf,const string &Dir, vector<string> const List = GetListOfFilesInDir(Dir, "conf", true, true); // Read the files - for (vector<string>::const_iterator I = List.begin(); I != List.end(); I++) + for (vector<string>::const_iterator I = List.begin(); I != List.end(); ++I) if (ReadConfigFile(Conf,*I,AsSectional,Depth) == false) return false; return true; @@ -857,22 +982,31 @@ Configuration::MatchAgainstConfig::MatchAgainstConfig(char const * Config) { regfree(p); delete p; - _error->Warning("Regex compilation error for '%s' in configuration option '%s'", - s->c_str(), Config); + _error->Warning("Invalid regular expression '%s' in configuration " + "option '%s' will be ignored.", + s->c_str(), Config); + continue; } - } - + } + if (strings.empty() == true) + patterns.push_back(NULL); } /*}}}*/ // MatchAgainstConfig Destructor /*{{{*/ Configuration::MatchAgainstConfig::~MatchAgainstConfig() +{ + clearPatterns(); +} +void Configuration::MatchAgainstConfig::clearPatterns() { for(std::vector<regex_t *>::const_iterator p = patterns.begin(); p != patterns.end(); ++p) { + if (*p == NULL) continue; regfree(*p); delete *p; } + patterns.clear(); } /*}}}*/ // MatchAgainstConfig::Match - returns true if a pattern matches /*{{{*/ @@ -880,7 +1014,7 @@ bool Configuration::MatchAgainstConfig::Match(char const * str) const { for(std::vector<regex_t *>::const_iterator p = patterns.begin(); p != patterns.end(); ++p) - if (regexec(*p, str, 0, 0, 0) == 0) + if (*p != NULL && regexec(*p, str, 0, 0, 0) == 0) return true; return false;