You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
961 lines
31 KiB
961 lines
31 KiB
// -*- mode: cpp; mode: fold -*-
|
|
// Description /*{{{*/
|
|
// $Id: deblistparser.cc,v 1.29.2.5 2004/01/06 01:43:44 mdz Exp $
|
|
/* ######################################################################
|
|
|
|
Package Cache Generator - Generator for the cache structure.
|
|
|
|
This builds the cache structure from the abstract package list parser.
|
|
|
|
##################################################################### */
|
|
/*}}}*/
|
|
// Include Files /*{{{*/
|
|
#include <config.h>
|
|
|
|
#include <apt-pkg/deblistparser.h>
|
|
#include <apt-pkg/error.h>
|
|
#include <apt-pkg/configuration.h>
|
|
#include <apt-pkg/cachefilter.h>
|
|
#include <apt-pkg/aptconfiguration.h>
|
|
#include <apt-pkg/strutl.h>
|
|
#include <apt-pkg/fileutl.h>
|
|
#include <apt-pkg/crc-16.h>
|
|
#include <apt-pkg/md5.h>
|
|
#include <apt-pkg/mmap.h>
|
|
#include <apt-pkg/pkgcache.h>
|
|
#include <apt-pkg/cacheiterators.h>
|
|
#include <apt-pkg/tagfile.h>
|
|
#include <apt-pkg/macros.h>
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <algorithm>
|
|
#include <string>
|
|
#include <vector>
|
|
#include <ctype.h>
|
|
/*}}}*/
|
|
|
|
using std::string;
|
|
|
|
static debListParser::WordList PrioList[] = {
|
|
{"required",pkgCache::State::Required},
|
|
{"important",pkgCache::State::Important},
|
|
{"standard",pkgCache::State::Standard},
|
|
{"optional",pkgCache::State::Optional},
|
|
{"extra",pkgCache::State::Extra},
|
|
{NULL, 0}};
|
|
|
|
// ListParser::debListParser - Constructor /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* Provide an architecture and only this one and "all" will be accepted
|
|
in Step(), if no Architecture is given we will accept every arch
|
|
we would accept in general with checkArchitecture() */
|
|
debListParser::debListParser(FileFd *File, string const &Arch) : Tags(File),
|
|
Arch(Arch) {
|
|
if (Arch == "native")
|
|
this->Arch = _config->Find("APT::Architecture");
|
|
Architectures = APT::Configuration::getArchitectures();
|
|
MultiArchEnabled = Architectures.size() > 1;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::UniqFindTagWrite - Find the tag and write a unq string /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
unsigned long debListParser::UniqFindTagWrite(const char *Tag)
|
|
{
|
|
const char *Start;
|
|
const char *Stop;
|
|
if (Section.Find(Tag,Start,Stop) == false)
|
|
return 0;
|
|
return WriteUniqString(Start,Stop - Start);
|
|
}
|
|
/*}}}*/
|
|
// ListParser::Package - Return the package name /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is to return the name of the package this section describes */
|
|
string debListParser::Package() {
|
|
string const Result = Section.FindS("Package");
|
|
if(unlikely(Result.empty() == true))
|
|
_error->Error("Encountered a section with no Package: header");
|
|
return Result;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::Architecture - Return the package arch /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This will return the Architecture of the package this section describes */
|
|
string debListParser::Architecture() {
|
|
return Section.FindS("Architecture");
|
|
}
|
|
/*}}}*/
|
|
// ListParser::ArchitectureAll /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
bool debListParser::ArchitectureAll() {
|
|
return Section.FindS("Architecture") == "all";
|
|
}
|
|
/*}}}*/
|
|
// ListParser::Version - Return the version string /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is to return the string describing the version in debian form,
|
|
epoch:upstream-release. If this returns the blank string then the
|
|
entry is assumed to only describe package properties */
|
|
string debListParser::Version()
|
|
{
|
|
return Section.FindS("Version");
|
|
}
|
|
/*}}}*/
|
|
unsigned char debListParser::ParseMultiArch(bool const showErrors) /*{{{*/
|
|
{
|
|
unsigned char MA;
|
|
string const MultiArch = Section.FindS("Multi-Arch");
|
|
if (MultiArch.empty() == true)
|
|
MA = pkgCache::Version::None;
|
|
else if (MultiArch == "same") {
|
|
if (ArchitectureAll() == true)
|
|
{
|
|
if (showErrors == true)
|
|
_error->Warning("Architecture: all package '%s' can't be Multi-Arch: same",
|
|
Section.FindS("Package").c_str());
|
|
MA = pkgCache::Version::None;
|
|
}
|
|
else
|
|
MA = pkgCache::Version::Same;
|
|
}
|
|
else if (MultiArch == "foreign")
|
|
MA = pkgCache::Version::Foreign;
|
|
else if (MultiArch == "allowed")
|
|
MA = pkgCache::Version::Allowed;
|
|
else
|
|
{
|
|
if (showErrors == true)
|
|
_error->Warning("Unknown Multi-Arch type '%s' for package '%s'",
|
|
MultiArch.c_str(), Section.FindS("Package").c_str());
|
|
MA = pkgCache::Version::None;
|
|
}
|
|
|
|
if (ArchitectureAll() == true)
|
|
MA |= pkgCache::Version::All;
|
|
|
|
return MA;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::NewVersion - Fill in the version structure /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
|
|
{
|
|
// Parse the section
|
|
Ver->Section = UniqFindTagWrite("Section");
|
|
Ver->MultiArch = ParseMultiArch(true);
|
|
// Archive Size
|
|
Ver->Size = Section.FindULL("Size");
|
|
// Unpacked Size (in K)
|
|
Ver->InstalledSize = Section.FindULL("Installed-Size");
|
|
Ver->InstalledSize *= 1024;
|
|
|
|
// Priority
|
|
const char *Start;
|
|
const char *Stop;
|
|
if (Section.Find("Priority",Start,Stop) == true)
|
|
{
|
|
if (GrabWord(string(Start,Stop-Start),PrioList,Ver->Priority) == false)
|
|
Ver->Priority = pkgCache::State::Extra;
|
|
}
|
|
|
|
if (ParseDepends(Ver,"Depends",pkgCache::Dep::Depends) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Pre-Depends",pkgCache::Dep::PreDepends) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Suggests",pkgCache::Dep::Suggests) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Recommends",pkgCache::Dep::Recommends) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Conflicts",pkgCache::Dep::Conflicts) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Breaks",pkgCache::Dep::DpkgBreaks) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Replaces",pkgCache::Dep::Replaces) == false)
|
|
return false;
|
|
if (ParseDepends(Ver,"Enhances",pkgCache::Dep::Enhances) == false)
|
|
return false;
|
|
|
|
// Obsolete.
|
|
if (ParseDepends(Ver,"Optional",pkgCache::Dep::Suggests) == false)
|
|
return false;
|
|
|
|
if (ParseProvides(Ver) == false)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::Description - Return the description string /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is to return the string describing the package in debian
|
|
form. If this returns the blank string then the entry is assumed to
|
|
only describe package properties */
|
|
string debListParser::Description()
|
|
{
|
|
string const lang = DescriptionLanguage();
|
|
if (lang.empty())
|
|
return Section.FindS("Description");
|
|
else
|
|
return Section.FindS(string("Description-").append(lang).c_str());
|
|
}
|
|
/*}}}*/
|
|
// ListParser::DescriptionLanguage - Return the description lang string /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is to return the string describing the language of
|
|
description. If this returns the blank string then the entry is
|
|
assumed to describe original description. */
|
|
string debListParser::DescriptionLanguage()
|
|
{
|
|
if (Section.FindS("Description").empty() == false)
|
|
return "";
|
|
|
|
std::vector<string> const lang = APT::Configuration::getLanguages(true);
|
|
for (std::vector<string>::const_iterator l = lang.begin();
|
|
l != lang.end(); ++l)
|
|
if (Section.FindS(string("Description-").append(*l).c_str()).empty() == false)
|
|
return *l;
|
|
|
|
return "";
|
|
}
|
|
/*}}}*/
|
|
// ListParser::Description - Return the description_md5 MD5SumValue /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is to return the md5 string to allow the check if it is the right
|
|
description. If no Description-md5 is found in the section it will be
|
|
calculated.
|
|
*/
|
|
MD5SumValue debListParser::Description_md5()
|
|
{
|
|
string const value = Section.FindS("Description-md5");
|
|
if (value.empty() == true)
|
|
{
|
|
std::string const desc = Description() + "\n";
|
|
if (desc == "\n")
|
|
return MD5SumValue();
|
|
|
|
MD5Summation md5;
|
|
md5.Add(desc.c_str());
|
|
return md5.Result();
|
|
}
|
|
else if (likely(value.size() == 32))
|
|
{
|
|
if (likely(value.find_first_not_of("0123456789abcdefABCDEF") == string::npos))
|
|
return MD5SumValue(value);
|
|
_error->Error("Malformed Description-md5 line; includes invalid character '%s'", value.c_str());
|
|
return MD5SumValue();
|
|
}
|
|
_error->Error("Malformed Description-md5 line; doesn't have the required length (32 != %d) '%s'", (int)value.size(), value.c_str());
|
|
return MD5SumValue();
|
|
}
|
|
/*}}}*/
|
|
// ListParser::UsePackage - Update a package structure /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is called to update the package with any new information
|
|
that might be found in the section */
|
|
bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
|
|
pkgCache::VerIterator &Ver)
|
|
{
|
|
if (Pkg->Section == 0)
|
|
Pkg->Section = UniqFindTagWrite("Section");
|
|
|
|
string const static myArch = _config->Find("APT::Architecture");
|
|
// Possible values are: "all", "native", "installed" and "none"
|
|
// The "installed" mode is handled by ParseStatus(), See #544481 and friends.
|
|
string const static essential = _config->Find("pkgCacheGen::Essential", "all");
|
|
if (essential == "all" ||
|
|
(essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()))
|
|
if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
|
|
return false;
|
|
if (Section.FindFlag("Important",Pkg->Flags,pkgCache::Flag::Important) == false)
|
|
return false;
|
|
|
|
if (strcmp(Pkg.Name(),"apt") == 0)
|
|
{
|
|
if ((essential == "native" && Pkg->Arch != 0 && myArch == Pkg.Arch()) ||
|
|
essential == "all")
|
|
Pkg->Flags |= pkgCache::Flag::Essential | pkgCache::Flag::Important;
|
|
else
|
|
Pkg->Flags |= pkgCache::Flag::Important;
|
|
}
|
|
|
|
if (ParseStatus(Pkg,Ver) == false)
|
|
return false;
|
|
return true;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::VersionHash - Compute a unique hash for this version /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
unsigned short debListParser::VersionHash()
|
|
{
|
|
const char *Sections[] ={"Installed-Size",
|
|
"Depends",
|
|
"Pre-Depends",
|
|
// "Suggests",
|
|
// "Recommends",
|
|
"Conflicts",
|
|
"Breaks",
|
|
"Replaces",0};
|
|
unsigned long Result = INIT_FCS;
|
|
char S[1024];
|
|
for (const char * const *I = Sections; *I != 0; ++I)
|
|
{
|
|
const char *Start;
|
|
const char *End;
|
|
if (Section.Find(*I,Start,End) == false || End - Start >= (signed)sizeof(S))
|
|
continue;
|
|
|
|
/* 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; ++Start)
|
|
{
|
|
if (isspace(*Start) != 0)
|
|
continue;
|
|
*J++ = tolower_ascii(*Start);
|
|
|
|
if ((*Start == '<' || *Start == '>') && Start[1] != *Start && Start[1] != '=')
|
|
*J++ = '=';
|
|
}
|
|
|
|
Result = AddCRC16(Result,S,J - S);
|
|
}
|
|
|
|
return Result;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::ParseStatus - Parse the status field /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* Status lines are of the form,
|
|
Status: want flag status
|
|
want = unknown, install, hold, deinstall, purge
|
|
flag = ok, reinstreq, hold, hold-reinstreq
|
|
status = not-installed, unpacked, half-configured,
|
|
half-installed, config-files, post-inst-failed,
|
|
removal-failed, installed
|
|
|
|
Some of the above are obsolete (I think?) flag = hold-* and
|
|
status = post-inst-failed, removal-failed at least.
|
|
*/
|
|
bool debListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
|
|
pkgCache::VerIterator &Ver)
|
|
{
|
|
const char *Start;
|
|
const char *Stop;
|
|
if (Section.Find("Status",Start,Stop) == false)
|
|
return true;
|
|
|
|
// UsePackage() is responsible for setting the flag in the default case
|
|
bool const static essential = _config->Find("pkgCacheGen::Essential", "") == "installed";
|
|
if (essential == true &&
|
|
Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
|
|
return false;
|
|
|
|
// Isolate the first word
|
|
const char *I = Start;
|
|
for(; I < Stop && *I != ' '; I++);
|
|
if (I >= Stop || *I != ' ')
|
|
return _error->Error("Malformed Status line");
|
|
|
|
// Process the want field
|
|
WordList WantList[] = {{"unknown",pkgCache::State::Unknown},
|
|
{"install",pkgCache::State::Install},
|
|
{"hold",pkgCache::State::Hold},
|
|
{"deinstall",pkgCache::State::DeInstall},
|
|
{"purge",pkgCache::State::Purge},
|
|
{NULL, 0}};
|
|
if (GrabWord(string(Start,I-Start),WantList,Pkg->SelectedState) == false)
|
|
return _error->Error("Malformed 1st word in the Status line");
|
|
|
|
// Isloate the next word
|
|
I++;
|
|
Start = I;
|
|
for(; I < Stop && *I != ' '; I++);
|
|
if (I >= Stop || *I != ' ')
|
|
return _error->Error("Malformed status line, no 2nd word");
|
|
|
|
// Process the flag field
|
|
WordList FlagList[] = {{"ok",pkgCache::State::Ok},
|
|
{"reinstreq",pkgCache::State::ReInstReq},
|
|
{"hold",pkgCache::State::HoldInst},
|
|
{"hold-reinstreq",pkgCache::State::HoldReInstReq},
|
|
{NULL, 0}};
|
|
if (GrabWord(string(Start,I-Start),FlagList,Pkg->InstState) == false)
|
|
return _error->Error("Malformed 2nd word in the Status line");
|
|
|
|
// Isloate the last word
|
|
I++;
|
|
Start = I;
|
|
for(; I < Stop && *I != ' '; I++);
|
|
if (I != Stop)
|
|
return _error->Error("Malformed Status line, no 3rd word");
|
|
|
|
// Process the flag field
|
|
WordList StatusList[] = {{"not-installed",pkgCache::State::NotInstalled},
|
|
{"unpacked",pkgCache::State::UnPacked},
|
|
{"half-configured",pkgCache::State::HalfConfigured},
|
|
{"installed",pkgCache::State::Installed},
|
|
{"half-installed",pkgCache::State::HalfInstalled},
|
|
{"config-files",pkgCache::State::ConfigFiles},
|
|
{"triggers-awaited",pkgCache::State::TriggersAwaited},
|
|
{"triggers-pending",pkgCache::State::TriggersPending},
|
|
{"post-inst-failed",pkgCache::State::HalfConfigured},
|
|
{"removal-failed",pkgCache::State::HalfInstalled},
|
|
{NULL, 0}};
|
|
if (GrabWord(string(Start,I-Start),StatusList,Pkg->CurrentState) == false)
|
|
return _error->Error("Malformed 3rd word in the Status line");
|
|
|
|
/* A Status line marks the package as indicating the current
|
|
version as well. Only if it is actually installed.. Otherwise
|
|
the interesting dpkg handling of the status file creates bogus
|
|
entries. */
|
|
if (!(Pkg->CurrentState == pkgCache::State::NotInstalled ||
|
|
Pkg->CurrentState == pkgCache::State::ConfigFiles))
|
|
{
|
|
if (Ver.end() == true)
|
|
_error->Warning("Encountered status field in a non-version description");
|
|
else
|
|
Pkg->CurrentVer = Ver.Index();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const char *debListParser::ConvertRelation(const char *I,unsigned int &Op)
|
|
{
|
|
// Determine the operator
|
|
switch (*I)
|
|
{
|
|
case '<':
|
|
I++;
|
|
if (*I == '=')
|
|
{
|
|
I++;
|
|
Op = pkgCache::Dep::LessEq;
|
|
break;
|
|
}
|
|
|
|
if (*I == '<')
|
|
{
|
|
I++;
|
|
Op = pkgCache::Dep::Less;
|
|
break;
|
|
}
|
|
|
|
// < is the same as <= and << is really Cs < for some reason
|
|
Op = pkgCache::Dep::LessEq;
|
|
break;
|
|
|
|
case '>':
|
|
I++;
|
|
if (*I == '=')
|
|
{
|
|
I++;
|
|
Op = pkgCache::Dep::GreaterEq;
|
|
break;
|
|
}
|
|
|
|
if (*I == '>')
|
|
{
|
|
I++;
|
|
Op = pkgCache::Dep::Greater;
|
|
break;
|
|
}
|
|
|
|
// > is the same as >= and >> is really Cs > for some reason
|
|
Op = pkgCache::Dep::GreaterEq;
|
|
break;
|
|
|
|
case '=':
|
|
Op = pkgCache::Dep::Equals;
|
|
I++;
|
|
break;
|
|
|
|
// HACK around bad package definitions
|
|
default:
|
|
Op = pkgCache::Dep::Equals;
|
|
break;
|
|
}
|
|
return I;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::ParseDepends - Parse a dependency element /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This parses the dependency elements out of a standard string in place,
|
|
bit by bit. */
|
|
const char *debListParser::ParseDepends(const char *Start,const char *Stop,
|
|
std::string &Package,std::string &Ver,unsigned int &Op)
|
|
{ return ParseDepends(Start, Stop, Package, Ver, Op, false, true, false); }
|
|
const char *debListParser::ParseDepends(const char *Start,const char *Stop,
|
|
std::string &Package,std::string &Ver,unsigned int &Op,
|
|
bool const &ParseArchFlags)
|
|
{ return ParseDepends(Start, Stop, Package, Ver, Op, ParseArchFlags, true, false); }
|
|
const char *debListParser::ParseDepends(const char *Start,const char *Stop,
|
|
std::string &Package,std::string &Ver,unsigned int &Op,
|
|
bool const &ParseArchFlags, bool const &StripMultiArch)
|
|
{ return ParseDepends(Start, Stop, Package, Ver, Op, ParseArchFlags, StripMultiArch, false); }
|
|
const char *debListParser::ParseDepends(const char *Start,const char *Stop,
|
|
string &Package,string &Ver,
|
|
unsigned int &Op, bool const &ParseArchFlags,
|
|
bool const &StripMultiArch,
|
|
bool const &ParseRestrictionsList)
|
|
{
|
|
// Strip off leading space
|
|
for (;Start != Stop && isspace(*Start) != 0; ++Start);
|
|
|
|
// Parse off the package name
|
|
const char *I = Start;
|
|
for (;I != Stop && isspace(*I) == 0 && *I != '(' && *I != ')' &&
|
|
*I != ',' && *I != '|' && *I != '[' && *I != ']' &&
|
|
*I != '<' && *I != '>'; ++I);
|
|
|
|
// Malformed, no '('
|
|
if (I != Stop && *I == ')')
|
|
return 0;
|
|
|
|
if (I == Start)
|
|
return 0;
|
|
|
|
// Stash the package name
|
|
Package.assign(Start,I - Start);
|
|
|
|
// We don't want to confuse library users which can't handle MultiArch
|
|
string const arch = _config->Find("APT::Architecture");
|
|
if (StripMultiArch == true) {
|
|
size_t const found = Package.rfind(':');
|
|
if (found != string::npos &&
|
|
(strcmp(Package.c_str() + found, ":any") == 0 ||
|
|
strcmp(Package.c_str() + found, ":native") == 0 ||
|
|
strcmp(Package.c_str() + found + 1, arch.c_str()) == 0))
|
|
Package = Package.substr(0,found);
|
|
}
|
|
|
|
// Skip white space to the '('
|
|
for (;I != Stop && isspace(*I) != 0 ; I++);
|
|
|
|
// Parse a version
|
|
if (I != Stop && *I == '(')
|
|
{
|
|
// Skip the '('
|
|
for (I++; I != Stop && isspace(*I) != 0 ; I++);
|
|
if (I + 3 >= Stop)
|
|
return 0;
|
|
I = ConvertRelation(I,Op);
|
|
|
|
// Skip whitespace
|
|
for (;I != Stop && isspace(*I) != 0; I++);
|
|
Start = I;
|
|
I = (const char*) memchr(I, ')', Stop - I);
|
|
if (I == NULL || Start == I)
|
|
return 0;
|
|
|
|
// Skip trailing whitespace
|
|
const char *End = I;
|
|
for (; End > Start && isspace(End[-1]); End--);
|
|
|
|
Ver.assign(Start,End-Start);
|
|
I++;
|
|
}
|
|
else
|
|
{
|
|
Ver.clear();
|
|
Op = pkgCache::Dep::NoOp;
|
|
}
|
|
|
|
// Skip whitespace
|
|
for (;I != Stop && isspace(*I) != 0; I++);
|
|
|
|
if (ParseArchFlags == true)
|
|
{
|
|
APT::CacheFilter::PackageArchitectureMatchesSpecification matchesArch(arch, false);
|
|
|
|
// Parse an architecture
|
|
if (I != Stop && *I == '[')
|
|
{
|
|
++I;
|
|
// malformed
|
|
if (unlikely(I == Stop))
|
|
return 0;
|
|
|
|
const char *End = I;
|
|
bool Found = false;
|
|
bool NegArch = false;
|
|
while (I != Stop)
|
|
{
|
|
// look for whitespace or ending ']'
|
|
for (;End != Stop && !isspace(*End) && *End != ']'; ++End);
|
|
|
|
if (unlikely(End == Stop))
|
|
return 0;
|
|
|
|
if (*I == '!')
|
|
{
|
|
NegArch = true;
|
|
++I;
|
|
}
|
|
|
|
std::string arch(I, End);
|
|
if (arch.empty() == false && matchesArch(arch.c_str()) == true)
|
|
{
|
|
Found = true;
|
|
if (I[-1] != '!')
|
|
NegArch = false;
|
|
// we found a match, so fast-forward to the end of the wildcards
|
|
for (; End != Stop && *End != ']'; ++End);
|
|
}
|
|
|
|
if (*End++ == ']') {
|
|
I = End;
|
|
break;
|
|
}
|
|
|
|
I = End;
|
|
for (;I != Stop && isspace(*I) != 0; I++);
|
|
}
|
|
|
|
if (NegArch == true)
|
|
Found = !Found;
|
|
|
|
if (Found == false)
|
|
Package = ""; /* not for this arch */
|
|
}
|
|
|
|
// Skip whitespace
|
|
for (;I != Stop && isspace(*I) != 0; I++);
|
|
}
|
|
|
|
if (ParseRestrictionsList == true)
|
|
{
|
|
// Parse a restrictions list
|
|
if (I != Stop && *I == '<')
|
|
{
|
|
++I;
|
|
// malformed
|
|
if (unlikely(I == Stop))
|
|
return 0;
|
|
|
|
std::vector<string> const profiles = APT::Configuration::getBuildProfiles();
|
|
|
|
const char *End = I;
|
|
bool Found = false;
|
|
bool NegRestriction = false;
|
|
while (I != Stop)
|
|
{
|
|
// look for whitespace or ending '>'
|
|
for (;End != Stop && !isspace(*End) && *End != '>'; ++End);
|
|
|
|
if (unlikely(End == Stop))
|
|
return 0;
|
|
|
|
if (*I == '!')
|
|
{
|
|
NegRestriction = true;
|
|
++I;
|
|
}
|
|
|
|
std::string restriction(I, End);
|
|
|
|
std::string prefix = "profile.";
|
|
// only support for "profile" prefix, ignore others
|
|
if (restriction.size() > prefix.size() &&
|
|
restriction.substr(0, prefix.size()) == prefix)
|
|
{
|
|
// get the name of the profile
|
|
restriction = restriction.substr(prefix.size());
|
|
|
|
if (restriction.empty() == false && profiles.empty() == false &&
|
|
std::find(profiles.begin(), profiles.end(), restriction) != profiles.end())
|
|
{
|
|
Found = true;
|
|
if (I[-1] != '!')
|
|
NegRestriction = false;
|
|
// we found a match, so fast-forward to the end of the wildcards
|
|
for (; End != Stop && *End != '>'; ++End);
|
|
}
|
|
}
|
|
|
|
if (*End++ == '>') {
|
|
I = End;
|
|
break;
|
|
}
|
|
|
|
I = End;
|
|
for (;I != Stop && isspace(*I) != 0; I++);
|
|
}
|
|
|
|
if (NegRestriction == true)
|
|
Found = !Found;
|
|
|
|
if (Found == false)
|
|
Package = ""; /* not for this restriction */
|
|
}
|
|
|
|
// Skip whitespace
|
|
for (;I != Stop && isspace(*I) != 0; I++);
|
|
}
|
|
|
|
if (I != Stop && *I == '|')
|
|
Op |= pkgCache::Dep::Or;
|
|
|
|
if (I == Stop || *I == ',' || *I == '|')
|
|
{
|
|
if (I != Stop)
|
|
for (I++; I != Stop && isspace(*I) != 0; I++);
|
|
return I;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::ParseDepends - Parse a dependency list /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This is the higher level depends parser. It takes a tag and generates
|
|
a complete depends tree for the given version. */
|
|
bool debListParser::ParseDepends(pkgCache::VerIterator &Ver,
|
|
const char *Tag,unsigned int Type)
|
|
{
|
|
const char *Start;
|
|
const char *Stop;
|
|
if (Section.Find(Tag,Start,Stop) == false)
|
|
return true;
|
|
|
|
string const pkgArch = Ver.Arch();
|
|
|
|
while (1)
|
|
{
|
|
string Package;
|
|
string Version;
|
|
unsigned int Op;
|
|
|
|
Start = ParseDepends(Start, Stop, Package, Version, Op, false, false, false);
|
|
if (Start == 0)
|
|
return _error->Error("Problem parsing dependency %s",Tag);
|
|
size_t const found = Package.rfind(':');
|
|
|
|
// If negative is unspecific it needs to apply on all architectures
|
|
if (MultiArchEnabled == true && found == string::npos &&
|
|
(Type == pkgCache::Dep::Conflicts ||
|
|
Type == pkgCache::Dep::DpkgBreaks ||
|
|
Type == pkgCache::Dep::Replaces))
|
|
{
|
|
for (std::vector<std::string>::const_iterator a = Architectures.begin();
|
|
a != Architectures.end(); ++a)
|
|
if (NewDepends(Ver,Package,*a,Version,Op,Type) == false)
|
|
return false;
|
|
if (NewDepends(Ver,Package,"none",Version,Op,Type) == false)
|
|
return false;
|
|
}
|
|
else if (MultiArchEnabled == true && found != string::npos &&
|
|
strcmp(Package.c_str() + found, ":any") != 0)
|
|
{
|
|
string Arch = Package.substr(found+1, string::npos);
|
|
Package = Package.substr(0, found);
|
|
// Such dependencies are not supposed to be accepted …
|
|
// … but this is probably the best thing to do.
|
|
if (Arch == "native")
|
|
Arch = _config->Find("APT::Architecture");
|
|
if (NewDepends(Ver,Package,Arch,Version,Op,Type) == false)
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (NewDepends(Ver,Package,pkgArch,Version,Op,Type) == false)
|
|
return false;
|
|
if ((Type == pkgCache::Dep::Conflicts ||
|
|
Type == pkgCache::Dep::DpkgBreaks ||
|
|
Type == pkgCache::Dep::Replaces) &&
|
|
NewDepends(Ver, Package,
|
|
(pkgArch != "none") ? "none" : _config->Find("APT::Architecture"),
|
|
Version,Op,Type) == false)
|
|
return false;
|
|
}
|
|
if (Start == Stop)
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::ParseProvides - Parse the provides list /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
|
|
{
|
|
const char *Start;
|
|
const char *Stop;
|
|
if (Section.Find("Provides",Start,Stop) == true)
|
|
{
|
|
string Package;
|
|
string Version;
|
|
string const Arch = Ver.Arch();
|
|
unsigned int Op;
|
|
|
|
while (1)
|
|
{
|
|
Start = ParseDepends(Start,Stop,Package,Version,Op);
|
|
if (Start == 0)
|
|
return _error->Error("Problem parsing Provides line");
|
|
if (Op != pkgCache::Dep::NoOp) {
|
|
_error->Warning("Ignoring Provides line with DepCompareOp for package %s", Package.c_str());
|
|
} else if ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign) {
|
|
if (NewProvidesAllArch(Ver, Package, Version) == false)
|
|
return false;
|
|
} else {
|
|
if (NewProvides(Ver, Package, Arch, Version) == false)
|
|
return false;
|
|
}
|
|
|
|
if (Start == Stop)
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((Ver->MultiArch & pkgCache::Version::Allowed) == pkgCache::Version::Allowed)
|
|
{
|
|
string const Package = string(Ver.ParentPkg().Name()).append(":").append("any");
|
|
return NewProvidesAllArch(Ver, Package, Ver.VerStr());
|
|
}
|
|
else if ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign)
|
|
return NewProvidesAllArch(Ver, Ver.ParentPkg().Name(), Ver.VerStr());
|
|
|
|
return true;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::NewProvides - add provides for all architectures /*{{{*/
|
|
bool debListParser::NewProvidesAllArch(pkgCache::VerIterator &Ver, string const &Package,
|
|
string const &Version) {
|
|
for (std::vector<string>::const_iterator a = Architectures.begin();
|
|
a != Architectures.end(); ++a)
|
|
{
|
|
if (NewProvides(Ver, Package, *a, Version) == false)
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::GrabWord - Matches a word and returns /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* Looks for a word in a list of words - for ParseStatus */
|
|
bool debListParser::GrabWord(string Word,WordList *List,unsigned char &Out)
|
|
{
|
|
for (unsigned int C = 0; List[C].Str != 0; C++)
|
|
{
|
|
if (strcasecmp(Word.c_str(),List[C].Str) == 0)
|
|
{
|
|
Out = List[C].Val;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::Step - Move to the next section in the file /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* This has to be careful to only process the correct architecture */
|
|
bool debListParser::Step()
|
|
{
|
|
iOffset = Tags.Offset();
|
|
while (Tags.Step(Section) == true)
|
|
{
|
|
/* See if this is the correct Architecture, if it isn't then we
|
|
drop the whole section. A missing arch tag only happens (in theory)
|
|
inside the Status file, so that is a positive return */
|
|
string const Architecture = Section.FindS("Architecture");
|
|
|
|
if (Arch.empty() == true || Arch == "any" || MultiArchEnabled == false)
|
|
{
|
|
if (APT::Configuration::checkArchitecture(Architecture) == true)
|
|
return true;
|
|
/* parse version stanzas without an architecture only in the status file
|
|
(and as misfortune bycatch flat-archives) */
|
|
if ((Arch.empty() == true || Arch == "any") && Architecture.empty() == true)
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
if (Architecture == Arch)
|
|
return true;
|
|
|
|
if (Architecture == "all" && Arch == _config->Find("APT::Architecture"))
|
|
return true;
|
|
}
|
|
|
|
iOffset = Tags.Offset();
|
|
}
|
|
return false;
|
|
}
|
|
/*}}}*/
|
|
// ListParser::LoadReleaseInfo - Load the release information /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,
|
|
FileFd &File, string component)
|
|
{
|
|
// apt-secure does no longer download individual (per-section) Release
|
|
// file. to provide Component pinning we use the section name now
|
|
map_ptrloc const storage = WriteUniqString(component);
|
|
FileI->Component = storage;
|
|
|
|
pkgTagFile TagFile(&File, File.Size());
|
|
pkgTagSection Section;
|
|
if (_error->PendingError() == true || TagFile.Step(Section) == false)
|
|
return false;
|
|
|
|
std::string data;
|
|
#define APT_INRELEASE(TAG, STORE) \
|
|
data = Section.FindS(TAG); \
|
|
if (data.empty() == false) \
|
|
{ \
|
|
map_ptrloc const storage = WriteUniqString(data); \
|
|
STORE = storage; \
|
|
}
|
|
APT_INRELEASE("Suite", FileI->Archive)
|
|
APT_INRELEASE("Component", FileI->Component)
|
|
APT_INRELEASE("Version", FileI->Version)
|
|
APT_INRELEASE("Origin", FileI->Origin)
|
|
APT_INRELEASE("Codename", FileI->Codename)
|
|
APT_INRELEASE("Label", FileI->Label)
|
|
#undef APT_INRELEASE
|
|
Section.FindFlag("NotAutomatic", FileI->Flags, pkgCache::Flag::NotAutomatic);
|
|
Section.FindFlag("ButAutomaticUpgrades", FileI->Flags, pkgCache::Flag::ButAutomaticUpgrades);
|
|
|
|
return !_error->PendingError();
|
|
}
|
|
/*}}}*/
|
|
// ListParser::GetPrio - Convert the priority from a string /*{{{*/
|
|
// ---------------------------------------------------------------------
|
|
/* */
|
|
unsigned char debListParser::GetPrio(string Str)
|
|
{
|
|
unsigned char Out;
|
|
if (GrabWord(Str,PrioList,Out) == false)
|
|
Out = pkgCache::State::Extra;
|
|
|
|
return Out;
|
|
}
|
|
/*}}}*/
|
|
#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
|
|
bool debListParser::SameVersion(unsigned short const Hash, /*{{{*/
|
|
pkgCache::VerIterator const &Ver)
|
|
{
|
|
if (pkgCacheGenerator::ListParser::SameVersion(Hash, Ver) == false)
|
|
return false;
|
|
// status file has no (Download)Size, but all others are fair game
|
|
// status file is parsed last, so the first version we encounter is
|
|
// probably also the version we have downloaded
|
|
unsigned long long const Size = Section.FindULL("Size");
|
|
if (Size != 0 && Size != Ver->Size)
|
|
return false;
|
|
// available everywhere, but easier to check here than to include in VersionHash
|
|
unsigned char MultiArch = ParseMultiArch(false);
|
|
if (MultiArch != Ver->MultiArch)
|
|
return false;
|
|
// for all practical proposes (we can check): same version
|
|
return true;
|
|
}
|
|
/*}}}*/
|
|
#endif
|
|
|