/usr/include/ace/SSL/SSL_SOCK_Stream.inl is in libace-ssl-dev 6.0.3+dfsg-0.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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//
// $Id: SSL_SOCK_Stream.inl 91103 2010-07-15 12:36:57Z mcorino $
#include "ace/OS_NS_errno.h"
#include "ace/Truncate.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
ACE_INLINE void
ACE_SSL_SOCK_Stream::set_handle (ACE_HANDLE fd)
{
if (this->ssl_ == 0 || fd == ACE_INVALID_HANDLE)
{
this->ACE_SSL_SOCK::set_handle (ACE_INVALID_HANDLE);
return;
}
else
{
(void) ::SSL_set_fd (this->ssl_, (int) fd);
this->ACE_SSL_SOCK::set_handle (fd);
this->stream_.set_handle (fd);
}
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::send_i (const void *buf,
size_t n,
int flags) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::send_i");
// NOTE: Caller must provide thread-synchronization.
// No send flags are supported in SSL.
if (flags != 0)
{
ACE_NOTSUP_RETURN (-1);
}
int const bytes_sent = ::SSL_write (this->ssl_,
static_cast<const char *> (buf),
ACE_Utils::truncate_cast<int> (n));
switch (::SSL_get_error (this->ssl_, bytes_sent))
{
case SSL_ERROR_NONE:
return bytes_sent;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
errno = EWOULDBLOCK;
return -1;
case SSL_ERROR_ZERO_RETURN:
// The peer has notified us that it is shutting down via the SSL
// "close_notify" message so we need to shutdown, too.
(void) ::SSL_shutdown (this->ssl_);
return bytes_sent;
case SSL_ERROR_SYSCALL:
if (bytes_sent == 0)
// An EOF occured but the SSL "close_notify" message was not
// sent. This is a protocol error, but we ignore it.
return 0;
// If not an EOF, then fall through to "default" case.
// On some platforms (e.g. MS Windows) OpenSSL does not store
// the last error in errno so explicitly do so.
ACE_OS::set_errno_to_last_error ();
break;
default:
// Reset errno to prevent previous values (e.g. EWOULDBLOCK)
// from being associated with fatal SSL errors.
errno = 0;
ACE_SSL_Context::report_error ();
break;
}
return -1;
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::send (const void *buf,
size_t n,
int flags) const
{
return this->send_i (buf, n, flags);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::recv_i (void *buf,
size_t n,
int flags,
const ACE_Time_Value *timeout) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::recv_i");
// NOTE: Caller must provide thread-synchronization.
int bytes_read = 0;
ACE_HANDLE const handle = this->get_handle ();
// Value for current I/O mode (blocking/non-blocking)
int val = 0;
if (timeout != 0)
ACE::record_and_set_non_blocking_mode (handle,
val);
// Only block on select() with a timeout if no data in the
// internal OpenSSL buffer is pending read completion for
// the same reasons stated above, i.e. all data must be read
// before blocking on select().
if (timeout != 0
&& !::SSL_pending (this->ssl_))
{
if (ACE::enter_recv_timedwait (handle,
timeout,
val) == -1)
return -1;
}
if (flags)
{
if (ACE_BIT_ENABLED (flags, MSG_PEEK))
{
bytes_read = ::SSL_peek (this->ssl_,
static_cast<char *> (buf),
ACE_Utils::truncate_cast<int> (n));
}
else
{
ACE_NOTSUP_RETURN (-1);
}
}
else
{
bytes_read = ::SSL_read (this->ssl_,
static_cast<char *> (buf),
ACE_Utils::truncate_cast<int> (n));
}
int const status = ::SSL_get_error (this->ssl_, bytes_read);
switch (status)
{
case SSL_ERROR_NONE:
if (timeout != 0)
ACE::restore_non_blocking_mode (handle, val);
return bytes_read;
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
errno = EWOULDBLOCK;
return -1;
case SSL_ERROR_ZERO_RETURN:
if (timeout != 0)
ACE::restore_non_blocking_mode (handle, val);
// The peer has notified us that it is shutting down via the SSL
// "close_notify" message so we need to shutdown, too.
(void) ::SSL_shutdown (this->ssl_);
return bytes_read;
case SSL_ERROR_SYSCALL:
if (bytes_read == 0)
// An EOF occured but the SSL "close_notify" message was not
// sent. This is a protocol error, but we ignore it.
return 0;
// If not an EOF, then fall through to "default" case.
// On some platforms (e.g. MS Windows) OpenSSL does not store
// the last error in errno so explicitly do so.
ACE_OS::set_errno_to_last_error ();
break;
default:
// Reset errno to prevent previous values (e.g. EWOULDBLOCK)
// from being associated with a fatal SSL error.
errno = 0;
ACE_SSL_Context::report_error ();
break;
}
return -1;
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::recv (void *buf,
size_t n,
int flags) const
{
return this->recv_i (buf, n, flags, 0);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::send (const void *buf,
size_t n) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::send");
return this->send_i (buf, n, 0);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::recv (void *buf,
size_t n) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::recv");
return this->recv_i (buf, n, 0, 0);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::send (const void *buf,
size_t len,
const ACE_Time_Value *timeout) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::send");
return this->send (buf, len, 0, timeout);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::recv (void *buf,
size_t n,
const ACE_Time_Value *timeout) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::recv");
return this->recv (buf, n, 0, timeout);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::recv_n (void *buf, int buf_size) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::recv_n");
return this->recv_n (buf, buf_size, 0);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::recv_n (void *buf,
size_t len,
const ACE_Time_Value *timeout,
size_t *bytes_transferred) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::recv_n");
return this->recv_n (buf, len, 0, timeout, bytes_transferred);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::send_n (const void *buf, int len) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::send_n");
return this->send_n (buf, len, 0);
}
ACE_INLINE ssize_t
ACE_SSL_SOCK_Stream::send_n (const void *buf,
size_t len,
const ACE_Time_Value *timeout,
size_t *bytes_transferred) const
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::send_n");
return this->send_n (buf, len, 0, timeout, bytes_transferred);
}
ACE_INLINE int
ACE_SSL_SOCK_Stream::close_reader (void)
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::close_reader");
return this->stream_.close_reader ();
}
ACE_INLINE int
ACE_SSL_SOCK_Stream::close_writer (void)
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::close_writer");
return this->stream_.close_writer ();
}
ACE_INLINE int
ACE_SSL_SOCK_Stream::close (void)
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::close");
if (this->ssl_ == 0 || this->get_handle () == ACE_INVALID_HANDLE)
return 0; // SSL_SOCK_Stream was never opened.
// SSL_shutdown() returns 1 on successful shutdown of the SSL
// connection, not 0.
int const status = ::SSL_shutdown (this->ssl_);
switch (::SSL_get_error (this->ssl_, status))
{
case SSL_ERROR_NONE:
case SSL_ERROR_SYSCALL: // Ignore this error condition.
// Reset the SSL object to allow another connection to be made
// using this ACE_SSL_SOCK_Stream instance. This prevents the
// previous SSL session state from being associated with the new
// SSL session/connection.
(void) ::SSL_clear (this->ssl_);
this->set_handle (ACE_INVALID_HANDLE);
return this->stream_.close ();
case SSL_ERROR_WANT_READ:
case SSL_ERROR_WANT_WRITE:
errno = EWOULDBLOCK;
break;
default:
ACE_SSL_Context::report_error ();
ACE_Errno_Guard error (errno); // Save/restore errno
(void) this->stream_.close ();
return -1;
}
return -1;
}
ACE_INLINE ACE_SOCK_Stream &
ACE_SSL_SOCK_Stream::peer (void)
{
ACE_TRACE ("ACE_SSL_SOCK_Stream::peer");
return this->stream_;
}
ACE_INLINE SSL *
ACE_SSL_SOCK_Stream::ssl (void) const
{
return this->ssl_;
}
ACE_END_VERSIONED_NAMESPACE_DECL
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