X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/b408e4ad0010b273dac0af7dc87ab61062d89e49..3b5607fc31371190470074371793cb8500b5139e:/apt-pkg/contrib/gpgv.cc

diff --git a/apt-pkg/contrib/gpgv.cc b/apt-pkg/contrib/gpgv.cc
index 54cc4c6d0..f24dd9640 100644
--- a/apt-pkg/contrib/gpgv.cc
+++ b/apt-pkg/contrib/gpgv.cc
@@ -2,35 +2,31 @@
 // 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<apt-pkg/gpgv.h>
+
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
 #include <sys/wait.h>
-
-#include<apt-pkg/configuration.h>
-#include<apt-pkg/error.h>
-#include<apt-pkg/strutl.h>
-#include<apt-pkg/fileutl.h>
-#include<apt-pkg/gpgv.h>
+#include <unistd.h>
+#include <stddef.h>
+#include <iostream>
+#include <string>
+#include <vector>
 
 #include <apti18n.h>
 									/*}}}*/
 static char * GenerateTemporaryFileTemplate(const char *basename)	/*{{{*/
 {
-   const char *tmpdir = getenv("TMPDIR");
-#ifdef P_tmpdir
-   if (!tmpdir)
-      tmpdir = P_tmpdir;
-#endif
-   if (!tmpdir)
-      tmpdir = "/tmp";
-
    std::string out;
-   strprintf(out,  "%s/%s.XXXXXX", tmpdir, basename);
+   std::string tmpdir = GetTempDir();
+   strprintf(out,  "%s/%s.XXXXXX", tmpdir.c_str(), basename);
    return strdup(out.c_str());
 }
 									/*}}}*/
@@ -109,12 +105,12 @@ void ExecGPGV(std::string const &File, std::string const &FileGPG,
       }
    }
 
+   enum  { DETACHED, CLEARSIGNED } releaseSignature = (FileGPG != File) ? DETACHED : CLEARSIGNED;
    std::vector<std::string> dataHeader;
    char * sig = NULL;
    char * data = NULL;
 
-   // file with detached signature
-   if (FileGPG != File)
+   if (releaseSignature == DETACHED)
    {
       Args.push_back(FileGPG.c_str());
       Args.push_back(File.c_str());
@@ -154,7 +150,7 @@ void ExecGPGV(std::string const &File, std::string const &FileGPG,
 	 if (sigFd != -1)
 	    unlink(data);
 	 ioprintf(std::cerr, "Splitting up %s into data and signature failed", File.c_str());
-	 exit(EINTERNAL);
+	 exit(112);
       }
       Args.push_back(sig);
       Args.push_back(data);
@@ -187,7 +183,7 @@ void ExecGPGV(std::string const &File, std::string const &FileGPG,
       putenv((char *)"LC_MESSAGES=");
    }
 
-   if (FileGPG != File)
+   if (releaseSignature == DETACHED)
    {
       execvp(gpgvpath.c_str(), (char **) &Args[0]);
       ioprintf(std::cerr, "Couldn't execute %s to check %s", Args[0], File.c_str());
@@ -266,8 +262,7 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
 
    char *buf = NULL;
    size_t buf_size = 0;
-   ssize_t line_len = 0;
-   while ((line_len = getline(&buf, &buf_size, in)) != -1)
+   while (getline(&buf, &buf_size, in) != -1)
    {
       _strrstrip(buf);
       if (found_message_start == false)
@@ -298,20 +293,21 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
 	       SignatureFile->Write("\n", 1);
 	    }
 	 }
-	 else if (found_message_end == false)
+	 else if (found_message_end == false) // we are in the message block
 	 {
-	    // we are in the message block
+	    // we don't have any fields which need dash-escaped,
+	    // but implementations are free to encode all lines …
+	    char const * dashfree = buf;
+	    if (strncmp(dashfree, "- ", 2) == 0)
+	       dashfree += 2;
 	    if(first_line == true) // first line does not need a newline
-	    {
-	       if (ContentFile != NULL)
-		  ContentFile->Write(buf, strlen(buf));
 	       first_line = false;
-	    }
 	    else if (ContentFile != NULL)
-	    {
 	       ContentFile->Write("\n", 1);
-	       ContentFile->Write(buf, strlen(buf));
-	    }
+	    else
+	       continue;
+	    if (ContentFile != NULL)
+	       ContentFile->Write(dashfree, strlen(dashfree));
 	 }
       }
       else if (found_signature == true)
@@ -333,11 +329,11 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
 
    // if we haven't found any of them, this an unsigned file,
    // so don't generate an error, but splitting was unsuccessful none-the-less
-   if (found_message_start == false && found_message_end == false)
+   if (first_line == true && found_message_start == false && found_message_end == false)
       return false;
    // otherwise one missing indicates a syntax error
-   else if (found_message_start == false || found_message_end == false)
-      return _error->Error("Splitting of file %s failed as it doesn't contain all expected parts", InFile.c_str());
+   else if (first_line == true || found_message_start == false || found_message_end == false)
+     return _error->Error("Splitting of file %s failed as it doesn't contain all expected parts %i %i %i", InFile.c_str(), first_line, found_message_start, found_message_end);
 
    return true;
 }
@@ -360,7 +356,7 @@ bool OpenMaybeClearSignedFile(std::string const &ClearSignedFileName, FileFd &Me
       return _error->Error("Couldn't open temporary file to work with %s", ClearSignedFileName.c_str());
 
    _error->PushToStack();
-   bool const splitDone = SplitClearSignedFile(ClearSignedFileName.c_str(), &MessageFile, NULL, NULL);
+   bool const splitDone = SplitClearSignedFile(ClearSignedFileName, &MessageFile, NULL, NULL);
    bool const errorDone = _error->PendingError();
    _error->MergeWithStack();
    if (splitDone == false)