##################################################################### */
/*}}}*/
// 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/macros.h>
#include <ctype.h>
-
-#include <system.h>
/*}}}*/
+using std::string;
+
static debListParser::WordList PrioList[] = {{"important",pkgCache::State::Important},
{"required",pkgCache::State::Required},
{"standard",pkgCache::State::Standard},
// ListParser::debListParser - Constructor /*{{{*/
// ---------------------------------------------------------------------
-/* */
-debListParser::debListParser(FileFd *File) : Tags(File)
-{
- Arch = _config->Find("APT::architecture");
+/* 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 /*{{{*/
// ListParser::Package - Return the package name /*{{{*/
// ---------------------------------------------------------------------
/* This is to return the name of the package this section describes */
-string debListParser::Package()
-{
- string Result = Section.FindS("Package");
- if (Result.empty() == true)
+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,
// ListParser::NewVersion - Fill in the version structure /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool debListParser::NewVersion(pkgCache::VerIterator Ver)
+bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
{
// Parse the section
Ver->Section = UniqFindTagWrite("Section");
- Ver->Arch = UniqFindTagWrite("Architecture");
-
+
+ // Parse multi-arch
+ string const MultiArch = Section.FindS("Multi-Arch");
+ if (MultiArch.empty() == true)
+ Ver->MultiArch = pkgCache::Version::None;
+ else if (MultiArch == "same") {
+ // Parse multi-arch
+ if (ArchitectureAll() == true)
+ {
+ /* Arch all packages can't be Multi-Arch: same */
+ _error->Warning("Architecture: all package '%s' can't be Multi-Arch: same",
+ Section.FindS("Package").c_str());
+ Ver->MultiArch = pkgCache::Version::None;
+ }
+ else
+ Ver->MultiArch = pkgCache::Version::Same;
+ }
+ else if (MultiArch == "foreign")
+ Ver->MultiArch = pkgCache::Version::Foreign;
+ else if (MultiArch == "allowed")
+ Ver->MultiArch = pkgCache::Version::Allowed;
+ else
+ {
+ _error->Warning("Unknown Multi-Arch type '%s' for package '%s'",
+ MultiArch.c_str(), Section.FindS("Package").c_str());
+ Ver->MultiArch = pkgCache::Version::None;
+ }
+
+ if (ArchitectureAll() == true)
+ Ver->MultiArch |= pkgCache::Version::All;
+
// Archive Size
- Ver->Size = (unsigned)Section.FindI("Size");
-
+ Ver->Size = Section.FindULL("Size");
// Unpacked Size (in K)
- Ver->InstalledSize = (unsigned)Section.FindI("Installed-Size");
+ Ver->InstalledSize = Section.FindULL("Installed-Size");
Ver->InstalledSize *= 1024;
// Priority
if (Section.FindS("Description").empty() == false)
return "";
- std::vector<string> const lang = APT::Configuration::getLanguages();
+ std::vector<string> const lang = APT::Configuration::getLanguages(true);
for (std::vector<string>::const_iterator l = lang.begin();
- l != lang.end(); l++)
+ l != lang.end(); ++l)
if (Section.FindS(string("Description-").append(*l).c_str()).empty() == false)
return *l;
*/
MD5SumValue debListParser::Description_md5()
{
- string value = Section.FindS("Description-md5");
-
- if (value.empty())
+ string const value = Section.FindS("Description-md5");
+ if (value.empty() == true)
{
MD5Summation md5;
md5.Add((Description() + "\n").c_str());
return md5.Result();
- } else
- return MD5SumValue(value);
+ }
+ 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)
+bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
+ pkgCache::VerIterator &Ver)
{
if (Pkg->Section == 0)
Pkg->Section = UniqFindTagWrite("Section");
- if (Section.FindFlag("Essential",Pkg->Flags,pkgCache::Flag::Essential) == false)
- return false;
+
+ 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)
- Pkg->Flags |= pkgCache::Flag::Important;
-
+ {
+ 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;
/* 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 *I = S;
+ char *J = S;
for (; Start != End; Start++)
{
if (isspace(*Start) == 0)
- *I++ = tolower_ascii(*Start);
+ *J++ = tolower_ascii(*Start);
if (*Start == '<' && Start[1] != '<' && Start[1] != '=')
- *I++ = '=';
+ *J++ = '=';
if (*Start == '>' && Start[1] != '>' && Start[1] != '=')
- *I++ = '=';
+ *J++ = '=';
}
- Result = AddCRC16(Result,S,I - S);
+ Result = AddCRC16(Result,S,J - S);
}
return Result;
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)
+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++);
}
return I;
}
-
/*}}}*/
// ListParser::ParseDepends - Parse a dependency element /*{{{*/
// ---------------------------------------------------------------------
// Parse off the package name
const char *I = Start;
for (;I != Stop && isspace(*I) == 0 && *I != '(' && *I != ')' &&
- *I != ',' && *I != '|'; I++);
+ *I != ',' && *I != '|' && *I != '[' && *I != ']'; I++);
// Malformed, no '('
if (I != Stop && *I == ')')
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)
+ 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 whitespace
for (;I != Stop && isspace(*I) != 0; I++);
Start = I;
- for (;I != Stop && *I != ')'; I++);
- if (I == Stop || Start == I)
- return 0;
+ I = (const char*) memchr(I, ')', Stop - I);
+ if (I == NULL || Start == I)
+ return 0;
// Skip trailing whitespace
const char *End = I;
if (ParseArchFlags == true)
{
- string arch = _config->Find("APT::Architecture");
+ APT::CacheFilter::PackageArchitectureMatchesSpecification matchesArch(arch, false);
// Parse an architecture
if (I != Stop && *I == '[')
{
+ ++I;
// malformed
- I++;
- if (I == Stop)
- return 0;
-
- const char *End = I;
- bool Found = false;
- bool NegArch = false;
- while (I != Stop)
+ if (unlikely(I == Stop))
+ return 0;
+
+ const char *End = I;
+ bool Found = false;
+ bool NegArch = false;
+ while (I != Stop)
{
- // look for whitespace or ending ']'
- while (End != Stop && !isspace(*End) && *End != ']')
- End++;
-
- if (End == Stop)
+ // look for whitespace or ending ']'
+ for (;End != Stop && !isspace(*End) && *End != ']'; ++End);
+
+ if (unlikely(End == Stop))
return 0;
if (*I == '!')
- {
+ {
NegArch = true;
- I++;
- }
+ ++I;
+ }
- if (stringcmp(arch,I,End) == 0)
+ 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)
+ if (NegArch == true)
Found = !Found;
-
- if (Found == false)
+
+ if (Found == false)
Package = ""; /* not for this arch */
}
-
+
// Skip whitespace
for (;I != Stop && isspace(*I) != 0; I++);
}
// ---------------------------------------------------------------------
/* 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,
+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 Package;
- string Version;
- unsigned int Op;
+
+ string const pkgArch = Ver.Arch();
while (1)
{
- Start = ParseDepends(Start,Stop,Package,Version,Op);
+ string Package;
+ string Version;
+ unsigned int Op;
+
+ Start = ParseDepends(Start,Stop,Package,Version,Op,false,!MultiArchEnabled);
if (Start == 0)
return _error->Error("Problem parsing dependency %s",Tag);
-
- if (NewDepends(Ver,Package,Version,Op,Type) == false)
- return false;
+ 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;
}
// ListParser::ParseProvides - Parse the provides list /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool debListParser::ParseProvides(pkgCache::VerIterator Ver)
+bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
{
const char *Start;
const char *Stop;
- if (Section.Find("Provides",Start,Stop) == false)
- return true;
-
- string Package;
- string Version;
- unsigned int Op;
-
- while (1)
+ if (Section.Find("Provides",Start,Stop) == true)
{
- 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 (NewProvides(Ver,Package,Version) == false)
- return false;
+ 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 (Start == Stop)
- break;
+ if (MultiArchEnabled == false)
+ return true;
+ else 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;
}
/*}}}*/
/* 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 */
- const char *Start;
- const char *Stop;
- if (Section.Find("Architecture",Start,Stop) == false)
- return true;
+ string const Architecture = Section.FindS("Architecture");
- if (stringcmp(Arch,Start,Stop) == 0)
- return true;
+ 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 (stringcmp(Start,Stop,"all") == 0)
- return true;
+ if (Architecture == "all" && Arch == _config->Find("APT::Architecture"))
+ return true;
+ }
iOffset = Tags.Offset();
}
// ListParser::LoadReleaseInfo - Load the release information /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator FileI,
+bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,
FileFd &File, string component)
{
- pkgTagFile Tags(&File, File.Size() + 256); // XXX
- pkgTagSection Section;
- if (Tags.Step(Section) == false)
- return false;
-
- //mvo: I don't think we need to fill that in (it's unused since apt-0.6)
- //FileI->Architecture = WriteUniqString(Arch);
-
// apt-secure does no longer download individual (per-section) Release
// file. to provide Component pinning we use the section name now
- FileI->Component = WriteUniqString(component);
+ map_ptrloc const storage = WriteUniqString(component);
+ FileI->Component = storage;
- const char *Start;
- const char *Stop;
- if (Section.Find("Suite",Start,Stop) == true)
- FileI->Archive = WriteUniqString(Start,Stop - Start);
- if (Section.Find("Component",Start,Stop) == true)
- FileI->Component = WriteUniqString(Start,Stop - Start);
- if (Section.Find("Version",Start,Stop) == true)
- FileI->Version = WriteUniqString(Start,Stop - Start);
- if (Section.Find("Origin",Start,Stop) == true)
- FileI->Origin = WriteUniqString(Start,Stop - Start);
- if (Section.Find("Codename",Start,Stop) == true)
- FileI->Codename = WriteUniqString(Start,Stop - Start);
- if (Section.Find("Label",Start,Stop) == true)
- FileI->Label = WriteUniqString(Start,Stop - Start);
- if (Section.Find("Architecture",Start,Stop) == true)
- FileI->Architecture = WriteUniqString(Start,Stop - Start);
-
- if (Section.FindFlag("NotAutomatic",FileI->Flags,
- pkgCache::Flag::NotAutomatic) == false)
- _error->Warning("Bad NotAutomatic flag");
+ // FIXME: Code depends on the fact that Release files aren't compressed
+ FILE* release = fdopen(dup(File.Fd()), "r");
+ if (release == NULL)
+ return false;
+
+ char buffer[101];
+ bool gpgClose = false;
+ while (fgets(buffer, sizeof(buffer), release) != NULL)
+ {
+ size_t len = 0;
+
+ // Skip empty lines
+ for (; buffer[len] == '\r' && buffer[len] == '\n'; ++len)
+ /* nothing */
+ ;
+ if (buffer[len] == '\0')
+ continue;
+
+ // only evalute the first GPG section
+ if (strncmp("-----", buffer, 5) == 0)
+ {
+ if (gpgClose == true)
+ break;
+ gpgClose = true;
+ continue;
+ }
+
+ // seperate the tag from the data
+ const char* dataStart = strchr(buffer + len, ':');
+ if (dataStart == NULL)
+ continue;
+ len = dataStart - buffer;
+ for (++dataStart; *dataStart == ' '; ++dataStart)
+ /* nothing */
+ ;
+ const char* dataEnd = (const char*)rawmemchr(dataStart, '\0');
+ // The last char should be a newline, but we can never be sure: #633350
+ const char* lineEnd = dataEnd;
+ for (--lineEnd; *lineEnd == '\r' || *lineEnd == '\n'; --lineEnd)
+ /* nothing */
+ ;
+ ++lineEnd;
+
+ // which datastorage need to be updated
+ enum { Suite, Component, Version, Origin, Codename, Label, None } writeTo = None;
+ if (buffer[0] == ' ')
+ ;
+ #define APT_PARSER_WRITETO(X) else if (strncmp(#X, buffer, len) == 0) writeTo = X;
+ APT_PARSER_WRITETO(Suite)
+ APT_PARSER_WRITETO(Component)
+ APT_PARSER_WRITETO(Version)
+ APT_PARSER_WRITETO(Origin)
+ APT_PARSER_WRITETO(Codename)
+ APT_PARSER_WRITETO(Label)
+ #undef APT_PARSER_WRITETO
+ #define APT_PARSER_FLAGIT(X) else if (strncmp(#X, buffer, len) == 0) \
+ pkgTagSection::FindFlag(FileI->Flags, pkgCache::Flag:: X, dataStart, lineEnd);
+ APT_PARSER_FLAGIT(NotAutomatic)
+ APT_PARSER_FLAGIT(ButAutomaticUpgrades)
+ #undef APT_PARSER_FLAGIT
+
+ // load all data from the line and save it
+ string data;
+ if (writeTo != None)
+ data.append(dataStart, dataEnd);
+ if (sizeof(buffer) - 1 == (dataEnd - buffer))
+ {
+ while (fgets(buffer, sizeof(buffer), release) != NULL)
+ {
+ if (writeTo != None)
+ data.append(buffer);
+ if (strlen(buffer) != sizeof(buffer) - 1)
+ break;
+ }
+ }
+ if (writeTo != None)
+ {
+ // remove spaces and stuff from the end of the data line
+ for (std::string::reverse_iterator s = data.rbegin();
+ s != data.rend(); ++s)
+ {
+ if (*s != '\r' && *s != '\n' && *s != ' ')
+ break;
+ *s = '\0';
+ }
+ map_ptrloc const storage = WriteUniqString(data);
+ switch (writeTo) {
+ case Suite: FileI->Archive = storage; break;
+ case Component: FileI->Component = storage; break;
+ case Version: FileI->Version = storage; break;
+ case Origin: FileI->Origin = storage; break;
+ case Codename: FileI->Codename = storage; break;
+ case Label: FileI->Label = storage; break;
+ case None: break;
+ }
+ }
+ }
+ fclose(release);
return !_error->PendingError();
}
projects / apt.git / blobdiff