]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/deb/deblistparser.cc
keyids in "apt-key del" should be case-insensitive
[apt.git] / apt-pkg / deb / deblistparser.cc
index 89f3514c942c32ff5bb9cc847637737fdf25ed11..4eef66c2b7bd1d0c736e69e2bbd6987990c6c23f 100644 (file)
 #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>
                                                                        /*}}}*/
 
@@ -34,7 +43,7 @@ static debListParser::WordList PrioList[] = {
    {"standard",pkgCache::State::Standard},
    {"optional",pkgCache::State::Optional},
    {"extra",pkgCache::State::Extra},
-   {}};
+   {NULL, 0}};
 
 // ListParser::debListParser - Constructor                             /*{{{*/
 // ---------------------------------------------------------------------
@@ -95,44 +104,50 @@ string debListParser::Version()
    return Section.FindS("Version");
 }
                                                                        /*}}}*/
-// ListParser::NewVersion - Fill in the version structure              /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
+unsigned char debListParser::ParseMultiArch(bool const showErrors)     /*{{{*/
 {
-   // Parse the section
-   Ver->Section = UniqFindTagWrite("Section");
-
-   // Parse multi-arch
+   unsigned char MA;
    string const MultiArch = Section.FindS("Multi-Arch");
-   if (MultiArch.empty() == true)
-      Ver->MultiArch = pkgCache::Version::None;
+   if (MultiArch.empty() == true || MultiArch == "no")
+      MA = 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;
+        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
-        Ver->MultiArch = pkgCache::Version::Same;
+        MA = pkgCache::Version::Same;
    }
    else if (MultiArch == "foreign")
-      Ver->MultiArch = pkgCache::Version::Foreign;
+      MA = pkgCache::Version::Foreign;
    else if (MultiArch == "allowed")
-      Ver->MultiArch = pkgCache::Version::Allowed;
+      MA = 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 (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)
-      Ver->MultiArch |= pkgCache::Version::All;
+      MA |= pkgCache::Version::All;
 
+   return MA;
+}
+                                                                       /*}}}*/
+// ListParser::NewVersion - Fill in the version structure              /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
+{
+   // Parse the section
+   unsigned long const idxSection = UniqFindTagWrite("Section");
+   Ver->Section = idxSection;
+   Ver->MultiArch = ParseMultiArch(true);
    // Archive Size
    Ver->Size = Section.FindULL("Size");
    // Unpacked Size (in K)
@@ -246,7 +261,10 @@ bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
                               pkgCache::VerIterator &Ver)
 {
    if (Pkg->Section == 0)
-      Pkg->Section = UniqFindTagWrite("Section");
+   {
+      unsigned long const idxSection = UniqFindTagWrite("Section");
+      Pkg->Section = idxSection;
+   }
 
    string const static myArch = _config->Find("APT::Architecture");
    // Possible values are: "all", "native", "installed" and "none"
@@ -320,13 +338,9 @@ unsigned short debListParser::VersionHash()
 /* 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.
+   flag = ok, reinstreq
+   status = not-installed, config-files, half-installed, unpacked,
+            half-configured, triggers-awaited, triggers-pending, installed
  */
 bool debListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
                                pkgCache::VerIterator &Ver)
@@ -354,7 +368,7 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
                           {"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");
 
@@ -370,7 +384,7 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
                           {"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");
 
@@ -383,16 +397,14 @@ bool debListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
 
    // Process the flag field
    WordList StatusList[] = {{"not-installed",pkgCache::State::NotInstalled},
+                            {"config-files",pkgCache::State::ConfigFiles},
+                            {"half-installed",pkgCache::State::HalfInstalled},
                             {"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},
-                            {}};
+                            {"installed",pkgCache::State::Installed},
+                            {NULL, 0}};
    if (GrabWord(string(Start,I-Start),StatusList,Pkg->CurrentState) == false)
       return _error->Error("Malformed 3rd word in the Status line");
 
@@ -617,72 +629,94 @@ const char *debListParser::ParseDepends(const char *Start,const char *Stop,
 
    if (ParseRestrictionsList == true)
    {
-      // Parse a restrictions list
-      if (I != Stop && *I == '<')
+      // Parse a restrictions formula which is in disjunctive normal form:
+      // (foo AND bar) OR (blub AND bla)
+
+      std::vector<string> const profiles = APT::Configuration::getBuildProfiles();
+
+      // if the next character is a restriction list, then by default the
+      // dependency does not apply and the conditions have to be checked
+      // if the next character is not a restriction list, then by default the
+      // dependency applies
+      bool applies1 = (*I != '<');
+      while (I != Stop)
       {
+        if (*I != '<')
+            break;
+
         ++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 == '!')
+        // if of the prior restriction list is already fulfilled, then
+        // we can just skip to the end of the current list
+        if (applies1) {
+           for (;End != Stop && *End != '>'; ++End);
+           I = ++End;
+           // skip whitespace
+           for (;I != Stop && isspace(*I) != 0; I++);
+        } else {
+           bool applies2 = true;
+           // all the conditions inside a restriction list have to be
+           // met so once we find one that is not met, we can skip to
+           // the end of this list
+           while (I != Stop)
            {
-              NegRestriction = true;
-              ++I;
-           }
+              // look for whitespace or ending '>'
+              // End now points to the character after the current term
+              for (;End != Stop && !isspace(*End) && *End != '>'; ++End);
 
-           std::string restriction(I, End);
+              if (unlikely(End == Stop))
+                 return 0;
 
-           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());
+              bool NegRestriction = false;
+              if (*I == '!')
+              {
+                 NegRestriction = true;
+                 ++I;
+              }
+
+              std::string restriction(I, End);
 
               if (restriction.empty() == false && profiles.empty() == false &&
-                    std::find(profiles.begin(), profiles.end(), restriction) != profiles.end())
+                 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 (NegRestriction) {
+                    applies2 = false;
+                    // since one of the terms does not apply we don't have to check the others
+                    for (; End != Stop && *End != '>'; ++End);
+                 }
+              } else {
+                 if (!NegRestriction) {
+                    applies2 = false;
+                    // since one of the terms does not apply we don't have to check the others
+                    for (; End != Stop && *End != '>'; ++End);
+                 }
+              }
+
+              if (*End++ == '>') {
+                 I = End;
+                 // skip whitespace
+                 for (;I != Stop && isspace(*I) != 0; I++);
+                 break;
               }
-           }
 
-           if (*End++ == '>') {
               I = End;
-              break;
+              // skip whitespace
+              for (;I != Stop && isspace(*I) != 0; I++);
+           }
+           if (applies2) {
+              applies1 = true;
            }
-
-           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 (applies1 == false) {
+        Package = ""; //not for this restriction
+      }
    }
 
    if (I != Stop && *I == '|')
@@ -785,8 +819,8 @@ bool debListParser::ParseProvides(pkgCache::VerIterator &Ver)
         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());
+        if (Op != pkgCache::Dep::NoOp && Op != pkgCache::Dep::Equals) {
+           _error->Warning("Ignoring Provides line with non-equal 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;
@@ -924,3 +958,24 @@ unsigned char debListParser::GetPrio(string Str)
    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