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| author | Jay Berkenbilt <ejb@ql.org> | 2017-08-12 02:10:28 +0200 |
|---|---|---|
| committer | Jay Berkenbilt <ejb@ql.org> | 2017-08-12 02:11:19 +0200 |
| commit | 46611f0710fa08f1a90134a84cfccec3a1e49f94 (patch) | |
| tree | 0c893211acb5929ed3d6572ad2be501029c1a194 /libqpdf/QPDFWriter.cc | |
| parent | 8fe0b06cd879f503d0e5be63f706d3adda3b8203 (diff) | |
| download | qpdf-46611f0710fa08f1a90134a84cfccec3a1e49f94.tar.zst | |
Prevent a division by zero error (fixes #141)
Bad /W in an xref stream could cause a division by zero error. Now
this is handled as a special case.
Diffstat (limited to 'libqpdf/QPDFWriter.cc')
| -rw-r--r-- | libqpdf/QPDFWriter.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libqpdf/QPDFWriter.cc b/libqpdf/QPDFWriter.cc index 8ee322af..8d5f0682 100644 --- a/libqpdf/QPDFWriter.cc +++ b/libqpdf/QPDFWriter.cc @@ -2056,6 +2056,10 @@ QPDFWriter::generateObjectStreams() std::vector<QPDFObjGen> const& eligible = QPDF::Writer::getCompressibleObjGens(this->pdf); unsigned int n_object_streams = (eligible.size() + 99) / 100; + if (n_object_streams == 0) + { + throw std::logic_error("n_object_streams == 0"); + } unsigned int n_per = eligible.size() / n_object_streams; if (n_per * n_object_streams < eligible.size()) { |