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-rw-r--r--apt-pkg/contrib/gpgv.cc34
1 files changed, 20 insertions, 14 deletions
diff --git a/apt-pkg/contrib/gpgv.cc b/apt-pkg/contrib/gpgv.cc
index 73fddf38c..b845528d8 100644
--- a/apt-pkg/contrib/gpgv.cc
+++ b/apt-pkg/contrib/gpgv.cc
@@ -57,21 +57,27 @@ class LineBuffer /*{{{*/
APT::StringView view() const noexcept { return {buffer, static_cast<size_t>(line_length)}; }
bool starts_with(APT::StringView const start) const { return view().substr(0, start.size()) == start; }
- bool writeTo(FileFd *const to, bool const prefixNL = false, bool const postfixNL = true, size_t offset = 0) const
+ bool writeTo(FileFd *const to, size_t offset = 0) const
{
if (to == nullptr)
return true;
- if (prefixNL)
- to->Write("\n", 1);
- if (postfixNL)
- {
- buffer[line_length] = '\n';
- bool const result = to->Write(buffer + offset, line_length + 1 - offset);
- buffer[line_length] = '\0';
- return result;
- }
return to->Write(buffer + offset, line_length - offset);
}
+ bool writeLineTo(FileFd *const to) const
+ {
+ if (to == nullptr)
+ return true;
+ buffer[line_length] = '\n';
+ bool const result = to->Write(buffer, line_length + 1);
+ buffer[line_length] = '\0';
+ return result;
+ }
+ bool writeNewLineIf(FileFd *const to, bool const condition) const
+ {
+ if (not condition || to == nullptr)
+ return true;
+ return to->Write("\n", 1);
+ }
bool readFrom(FILE *stream, std::string const &InFile, bool acceptEoF = false)
{
@@ -462,7 +468,7 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
{
if (buf == "-----BEGIN PGP SIGNATURE-----")
{
- if (not buf.writeTo(SignatureFile))
+ if (not buf.writeLineTo(SignatureFile))
return false;
break;
}
@@ -470,7 +476,7 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
{
// we don't have any fields which need to be dash-escaped,
// but implementations are free to escape all lines …
- if (not buf.writeTo(ContentFile, not first_line, false, 2))
+ if (not buf.writeNewLineIf(ContentFile, not first_line) || not buf.writeTo(ContentFile, 2))
return false;
}
else
@@ -479,7 +485,7 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
// this is an attempt to trick our parser vs. gpgv parser into ignoring a header
return _error->Error("Clearsigned file '%s' contains unexpected line starting with a dash (%s)", InFile.c_str(), "msg");
}
- else if (not buf.writeTo(ContentFile, not first_line, false))
+ else if (not buf.writeNewLineIf(ContentFile, not first_line) || not buf.writeTo(ContentFile))
return false;
first_line = false;
}
@@ -509,7 +515,7 @@ bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
return _error->Error("Clearsigned file '%s' contains unsigned lines.", InFile.c_str());
}
- if (not buf.writeTo(SignatureFile))
+ if (not buf.writeLineTo(SignatureFile))
return false;
}
if (open_signature)