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m_ssl_openssl Add workaround for a memory leak in OpenSSL

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This commit is contained in:
Attila Molnar 2015-11-10 17:25:02 +01:00
parent 903a0075d3
commit b90f3aca13
1 changed files with 9 additions and 1 deletions
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10
src/modules/extra/m_ssl_openssl.cpp
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@ -363,6 +363,14 @@ namespace OpenSSL
return 1;
}
static int destroy(BIO* bio)
{
// XXX: Dummy function to avoid a memory leak in OpenSSL.
// The memory leak happens in BIO_free() (bio_lib.c) when the destroy func of the BIO is NULL.
// This is fixed in OpenSSL but some distros still ship the unpatched version hence we provide this workaround.
return 1;
}
static long ctrl(BIO* bio, int cmd, long num, void* ptr)
{
if (cmd == BIO_CTRL_FLUSH)
@ -385,7 +393,7 @@ static BIO_METHOD biomethods =
NULL, // gets
OpenSSL::BIOMethod::ctrl,
OpenSSL::BIOMethod::create,
NULL, // destroy, NULL causes older OpenSSL to leak memory in BIO_free() (bio_lib.c)
OpenSSL::BIOMethod::destroy, // destroy, does nothing, see function body for more info
NULL // callback_ctrl
};