X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/b2e465d6d32d2dc884f58b94acb7e35f671a87fe..d0f1646ae06ca5710b015662b9244e277dce73fa:/apt-pkg/versionmatch.cc

diff --git a/apt-pkg/versionmatch.cc b/apt-pkg/versionmatch.cc
index 45cdb117e..6d667acad 100644
--- a/apt-pkg/versionmatch.cc
+++ b/apt-pkg/versionmatch.cc
@@ -1,6 +1,6 @@
 // -*- mode: cpp; mode: fold -*-
 // Description								/*{{{*/
-// $Id: versionmatch.cc,v 1.2 2001/02/20 07:03:17 jgg Exp $
+// $Id: versionmatch.cc,v 1.9 2003/05/19 17:58:26 doogie Exp $
 /* ######################################################################
 
    Version Matching 
@@ -11,15 +11,17 @@
    ##################################################################### */
 									/*}}}*/
 // Include Files							/*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/versionmatch.h"
-#endif
 #include <apt-pkg/versionmatch.h>
 
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/error.h>
 
 #include <stdio.h>
+#include <ctype.h>
+#include <fnmatch.h>
+#include <sys/types.h>
+#include <regex.h>
+
 									/*}}}*/
 
 // VersionMatch::pkgVersionMatch - Constructor				/*{{{*/
@@ -27,6 +29,10 @@
 /* Break up the data string according to the selected type */
 pkgVersionMatch::pkgVersionMatch(string Data,MatchType Type) : Type(Type)
 {
+   MatchAll = false;
+   VerPrefixMatch = false;
+   RelVerPrefixMatch = false;
+   
    if (Type == None || Data.length() < 1)
       return;
    
@@ -36,7 +42,7 @@ pkgVersionMatch::pkgVersionMatch(string Data,MatchType Type) : Type(Type)
       if (Data.end()[-1] == '*')
       {
 	 VerPrefixMatch = true;
-	 VerStr = string(Data.begin(),Data.end()-1);
+	 VerStr = string(Data,0,Data.length()-1);
       }
       else
 	 VerStr = Data;
@@ -47,20 +53,23 @@ pkgVersionMatch::pkgVersionMatch(string Data,MatchType Type) : Type(Type)
    {
       // All empty = match all
       if (Data == "*")
+      {
+	 MatchAll = true;
 	 return;
+      }
       
       // Are we a simple specification?
-      const char *I = Data.begin();
-      for (; I < Data.end() && *I != '='; I++);	 
+      string::const_iterator I = Data.begin();
+      for (; I != Data.end() && *I != '='; ++I);
       if (I == Data.end())
       {
 	 // Temporary
 	 if (isdigit(Data[0]))
 	    RelVerStr = Data;
 	 else
-	    RelArchive = Data;
-	 
-	 if (RelVerStr.end()[-1] == '*')
+	    RelRelease = Data;
+
+	 if (RelVerStr.length() > 0 && RelVerStr.end()[-1] == '*')
 	 {
 	    RelVerPrefixMatch = true;
 	    RelVerStr = string(RelVerStr.begin(),RelVerStr.end()-1);
@@ -82,19 +91,23 @@ pkgVersionMatch::pkgVersionMatch(string Data,MatchType Type) : Type(Type)
       {
 	 if (strlen(Fragments[J]) < 3)
 	    continue;
-	    
+
 	 if (stringcasecmp(Fragments[J],Fragments[J]+2,"v=") == 0)
 	    RelVerStr = Fragments[J]+2;
 	 else if (stringcasecmp(Fragments[J],Fragments[J]+2,"o=") == 0)
 	    RelOrigin = Fragments[J]+2;
 	 else if (stringcasecmp(Fragments[J],Fragments[J]+2,"a=") == 0)
 	    RelArchive = Fragments[J]+2;
+	 else if (stringcasecmp(Fragments[J],Fragments[J]+2,"n=") == 0)
+	    RelCodename = Fragments[J]+2;
 	 else if (stringcasecmp(Fragments[J],Fragments[J]+2,"l=") == 0)
 	    RelLabel = Fragments[J]+2;
 	 else if (stringcasecmp(Fragments[J],Fragments[J]+2,"c=") == 0)
 	    RelComponent = Fragments[J]+2;
+	 else if (stringcasecmp(Fragments[J],Fragments[J]+2,"b=") == 0)
+	    RelArchitecture = Fragments[J]+2;
       }
-      
+
       if (RelVerStr.end()[-1] == '*')
       {
 	 RelVerPrefixMatch = true;
@@ -105,7 +118,10 @@ pkgVersionMatch::pkgVersionMatch(string Data,MatchType Type) : Type(Type)
    
    if (Type == Origin)
    {
-      OrSite = Data;
+      if (Data[0] == '"' && Data.length() >= 2 && Data.end()[-1] == '"')
+	 OrSite = Data.substr(1, Data.length() - 2);
+      else
+	 OrSite = Data;
       return;
    }   
 }
@@ -119,13 +135,12 @@ bool pkgVersionMatch::MatchVer(const char *A,string B,bool Prefix)
    const char *Ae = Ab + strlen(A);
    
    // Strings are not a compatible size.
-   if ((unsigned)(Ae - Ab) != B.length() && Prefix == false ||
+   if (((unsigned)(Ae - Ab) != B.length() && Prefix == false) ||
        (unsigned)(Ae - Ab) < B.length())
       return false;
    
    // Match (leading?)
-   if (stringcasecmp(B.begin(),B.end(),
-		     Ab,Ab + B.length()) == 0)
+   if (stringcasecmp(B,Ab,Ab + B.length()) == 0)
       return true;
    
    return false;
@@ -137,16 +152,18 @@ bool pkgVersionMatch::MatchVer(const char *A,string B,bool Prefix)
 pkgCache::VerIterator pkgVersionMatch::Find(pkgCache::PkgIterator Pkg)
 {
    pkgCache::VerIterator Ver = Pkg.VersionList();
-   for (; Ver.end() == false; Ver++)
+   for (; Ver.end() == false; ++Ver)
    {
       if (Type == Version)
       {
 	 if (MatchVer(Ver.VerStr(),VerStr,VerPrefixMatch) == true)
 	    return Ver;
+	 if (ExpressionMatches(VerStr, Ver.VerStr()) == true)
+	    return Ver;
 	 continue;
       }
       
-      for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; VF++)
+      for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; ++VF)
 	 if (FileMatch(VF.File()) == true)
 	    return Ver;
    }
@@ -154,6 +171,36 @@ pkgCache::VerIterator pkgVersionMatch::Find(pkgCache::PkgIterator Pkg)
    // This will be Ended by now.
    return Ver;
 }
+
+#ifndef FNM_CASEFOLD
+#define FNM_CASEFOLD 0
+#endif
+
+bool pkgVersionMatch::ExpressionMatches(const char *pattern, const char *string)
+{
+   if (pattern[0] == '/') {
+      bool res = false;
+      size_t length = strlen(pattern);
+      if (pattern[length - 1] == '/') {
+	 regex_t preg;
+	 char *regex = strdup(pattern + 1);
+	 regex[length - 2] = '\0';
+	 if (regcomp(&preg, regex, REG_EXTENDED | REG_ICASE) != 0) {
+	    _error->Warning("Invalid regular expression: %s", regex);
+	 } else if (regexec(&preg, string, 0, NULL, 0) == 0) {
+	    res = true;
+	 }
+	 free(regex);
+	 regfree(&preg);
+	 return res;
+      }
+   }
+   return fnmatch(pattern, string, FNM_CASEFOLD) == 0;
+}
+bool pkgVersionMatch::ExpressionMatches(const std::string& pattern, const char *string)
+{
+    return ExpressionMatches(pattern.c_str(), string);
+}
 									/*}}}*/
 // VersionMatch::FileMatch - Match against an index file		/*{{{*/
 // ---------------------------------------------------------------------
@@ -163,48 +210,66 @@ bool pkgVersionMatch::FileMatch(pkgCache::PkgFileIterator File)
 {
    if (Type == Release)
    {
+      if (MatchAll == true)
+	 return true;
+
 /*      cout << RelVerStr << ',' << RelOrigin << ',' << RelArchive << ',' << RelLabel << endl;
-      cout << File.Version() << ',' << File.Origin() << ',' << File.Archive() << ',' << File.Label() << endl;
-*/
+      cout << File.Version() << ',' << File.Origin() << ',' << File.Archive() << ',' << File.Label() << endl;*/
+
       if (RelVerStr.empty() == true && RelOrigin.empty() == true &&
 	  RelArchive.empty() == true && RelLabel.empty() == true &&
-	  RelComponent.empty() == true)
+	  RelRelease.empty() == true && RelCodename.empty() == true &&
+	  RelComponent.empty() == true && RelArchitecture.empty() == true)
 	 return false;
-      
+
       if (RelVerStr.empty() == false)
 	 if (File->Version == 0 ||
-	     MatchVer(File.Version(),RelVerStr,RelVerPrefixMatch) == false)
+	     (MatchVer(File.Version(),RelVerStr,RelVerPrefixMatch) == false &&
+	      ExpressionMatches(RelVerStr, File.Version()) == false))
 	    return false;
       if (RelOrigin.empty() == false)
-	 if (File->Origin == 0 ||
-	     stringcasecmp(RelOrigin,File.Origin()) != 0)
+	 if (File->Origin == 0 || !ExpressionMatches(RelOrigin,File.Origin()))
 	    return false;
       if (RelArchive.empty() == false)
-      {
-	 if (File->Archive == 0 || 
-	     stringcasecmp(RelArchive,File.Archive()) != 0)
-	    return false;
-      }      
+	 if (File->Archive == 0 ||
+	     !ExpressionMatches(RelArchive,File.Archive()))
+            return false;
+      if (RelCodename.empty() == false)
+	 if (File->Codename == 0 ||
+	     !ExpressionMatches(RelCodename,File.Codename()))
+            return false;
+      if (RelRelease.empty() == false)
+	 if ((File->Archive == 0 ||
+	     !ExpressionMatches(RelRelease,File.Archive())) &&
+             (File->Codename == 0 ||
+	      !ExpressionMatches(RelRelease,File.Codename())))
+	       return false;
       if (RelLabel.empty() == false)
 	 if (File->Label == 0 ||
-	     stringcasecmp(RelLabel,File.Label()) != 0)
+	     !ExpressionMatches(RelLabel,File.Label()))
 	    return false;
       if (RelComponent.empty() == false)
 	 if (File->Component == 0 ||
-	     stringcasecmp(RelLabel,File.Component()) != 0)
+	     !ExpressionMatches(RelComponent,File.Component()))
+	    return false;
+      if (RelArchitecture.empty() == false)
+	 if (File->Architecture == 0 ||
+	     !ExpressionMatches(RelArchitecture,File.Architecture()))
 	    return false;
       return true;
    }
-   
+
    if (Type == Origin)
    {
-      if (OrSite.empty() == false)
-	 if (File->Site == 0 ||
-	     OrSite != File.Site())
+      if (OrSite.empty() == false) {
+	 if (File->Site == 0)
 	    return false;
-      return true;
+      } else // so we are talking about file:// or status file
+	 if (strcmp(File.Site(),"") == 0 && File->Archive != 0 && strcmp(File.Archive(),"now") == 0) // skip the status file
+	    return false;
+      return (ExpressionMatches(OrSite, File.Site())); /* both strings match */
    }
-   
+
    return false;
 }
 									/*}}}*/