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Fix Pl_Flate memory leak on error (fixes #148)

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This commit is contained in:
Jay Berkenbilt 2017-08-25 22:26:53 -04:00
parent ad527a64f9
commit 021c229331
1 changed files with 15 additions and 0 deletions
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15
libqpdf/Pl_Flate.cc
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@ -35,6 +35,20 @@ Pl_Flate::~Pl_Flate()
delete [] this->outbuf; delete [] this->outbuf;
this->outbuf = 0; this->outbuf = 0;
} }
if (this->initialized)
{
z_stream& zstream = *(static_cast<z_stream*>(this->zdata));
if (action == a_deflate)
{
deflateEnd(&zstream);
}
else
{
inflateEnd(&zstream);
}
}
delete static_cast<z_stream*>(this->zdata); delete static_cast<z_stream*>(this->zdata);
this->zdata = 0; this->zdata = 0;
} }
@ -174,6 +188,7 @@ Pl_Flate::finish()
{ {
err = inflateEnd(&zstream); err = inflateEnd(&zstream);
} }
this->initialized = false;
checkError("End", err); checkError("End", err);
} }