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authorsimon <simon@FreeBSD.org>2006-07-29 19:41:41 +0000
committersimon <simon@FreeBSD.org>2006-07-29 19:41:41 +0000
commit018ef6efe1e20b420eaa3afdaa37b0abeba93a1a (patch)
treee9b6155f49a3b6073b95b808e1e0a1ec5489a21f /secure/lib/libssl/man/SSL_shutdown.3
parent152e76d1d1dcc649357b52f30943345b06aa162c (diff)
downloadFreeBSD-src-018ef6efe1e20b420eaa3afdaa37b0abeba93a1a.zip
FreeBSD-src-018ef6efe1e20b420eaa3afdaa37b0abeba93a1a.tar.gz
Upgrade to OpenSSL 0.9.8b.
Diffstat (limited to 'secure/lib/libssl/man/SSL_shutdown.3')
-rw-r--r--secure/lib/libssl/man/SSL_shutdown.375
1 files changed, 33 insertions, 42 deletions
diff --git a/secure/lib/libssl/man/SSL_shutdown.3 b/secure/lib/libssl/man/SSL_shutdown.3
index 291aa32..a6259db 100644
--- a/secure/lib/libssl/man/SSL_shutdown.3
+++ b/secure/lib/libssl/man/SSL_shutdown.3
@@ -1,8 +1,7 @@
-.\" Automatically generated by Pod::Man version 1.15
-.\" Wed Feb 19 16:47:49 2003
+.\" Automatically generated by Pod::Man v1.37, Pod::Parser v1.32
.\"
.\" Standard preamble:
-.\" ======================================================================
+.\" ========================================================================
.de Sh \" Subsection heading
.br
.if t .Sp
@@ -15,12 +14,6 @@
.if t .sp .5v
.if n .sp
..
-.de Ip \" List item
-.br
-.ie \\n(.$>=3 .ne \\$3
-.el .ne 3
-.IP "\\$1" \\$2
-..
.de Vb \" Begin verbatim text
.ft CW
.nf
@@ -28,15 +21,14 @@
..
.de Ve \" End verbatim text
.ft R
-
.fi
..
.\" Set up some character translations and predefined strings. \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote. | will give a
-.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used
-.\" to do unbreakable dashes and therefore won't be available. \*(C` and
-.\" \*(C' expand to `' in nroff, nothing in troff, for use with C<>
+.\" real vertical bar. \*(C+ will give a nicer C++. Capital omega is used to
+.\" do unbreakable dashes and therefore won't be available. \*(C` and \*(C'
+.\" expand to `' in nroff, nothing in troff, for use with C<>.
.tr \(*W-|\(bv\*(Tr
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
@@ -56,10 +48,10 @@
. ds R" ''
'br\}
.\"
-.\" If the F register is turned on, we'll generate index entries on stderr
-.\" for titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and
-.\" index entries marked with X<> in POD. Of course, you'll have to process
-.\" the output yourself in some meaningful fashion.
+.\" If the F register is turned on, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
+.\" entries marked with X<> in POD. Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
.if \nF \{\
. de IX
. tm Index:\\$1\t\\n%\t"\\$2"
@@ -68,14 +60,13 @@
. rr F
.\}
.\"
-.\" For nroff, turn off justification. Always turn off hyphenation; it
-.\" makes way too many mistakes in technical documents.
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
.hy 0
.if n .na
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear. Run. Save yourself. No user-serviceable parts.
-.bd B 3
. \" fudge factors for nroff and troff
.if n \{\
. ds #H 0
@@ -135,18 +126,18 @@
. ds Ae AE
.\}
.rm #[ #] #H #V #F C
-.\" ======================================================================
+.\" ========================================================================
.\"
.IX Title "SSL_shutdown 3"
-.TH SSL_shutdown 3 "0.9.7a" "2003-02-19" "OpenSSL"
-.UC
+.TH SSL_shutdown 3 "2006-07-29" "0.9.8b" "OpenSSL"
.SH "NAME"
-SSL_shutdown \- shut down a \s-1TLS/SSL\s0 connection
+SSL_shutdown \- shut down a TLS/SSL connection
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ssl.h>
.Ve
+.PP
.Vb 1
\& int SSL_shutdown(SSL *ssl);
.Ve
@@ -171,15 +162,15 @@ When the underlying connection shall be used for more communications, the
complete shutdown procedure (bidirectional \*(L"close notify\*(R" alerts) must be
performed, so that the peers stay synchronized.
.PP
-\&\fISSL_shutdown()\fR supports both uni- and bidirectional shutdown by its 2 step
+\&\fISSL_shutdown()\fR supports both uni\- and bidirectional shutdown by its 2 step
behaviour.
-.if n .Ip "When the application is the first party to send the """"close notify"""" alert, \fISSL_shutdown()\fR will only send the alert and the set the \s-1SSL_SENT_SHUTDOWN\s0 flag (so that the session is considered good and will be kept in cache). \fISSL_shutdown()\fR will then return with 0. If a unidirectional shutdown is enough (the underlying connection shall be closed anyway), this first call to \fISSL_shutdown()\fR is sufficient. In order to complete the bidirectional shutdown handshake, \fISSL_shutdown()\fR must be called again. The second call will make \fISSL_shutdown()\fR wait for the peer's """"close notify"""" shutdown alert. On success, the second call to \fISSL_shutdown()\fR will return with 1." 4
-.el .Ip "When the application is the first party to send the ``close notify'' alert, \fISSL_shutdown()\fR will only send the alert and the set the \s-1SSL_SENT_SHUTDOWN\s0 flag (so that the session is considered good and will be kept in cache). \fISSL_shutdown()\fR will then return with 0. If a unidirectional shutdown is enough (the underlying connection shall be closed anyway), this first call to \fISSL_shutdown()\fR is sufficient. In order to complete the bidirectional shutdown handshake, \fISSL_shutdown()\fR must be called again. The second call will make \fISSL_shutdown()\fR wait for the peer's ``close notify'' shutdown alert. On success, the second call to \fISSL_shutdown()\fR will return with 1." 4
-.IX Item "When the application is the first party to send the "close notify alert, SSL_shutdown() will only send the alert and the set the SSL_SENT_SHUTDOWN flag (so that the session is considered good and will be kept in cache). SSL_shutdown() will then return with 0. If a unidirectional shutdown is enough (the underlying connection shall be closed anyway), this first call to SSL_shutdown() is sufficient. In order to complete the bidirectional shutdown handshake, SSL_shutdown() must be called again. The second call will make SSL_shutdown() wait for the peer's close notify shutdown alert. On success, the second call to SSL_shutdown() will return with 1."
+.ie n .IP "When the application is the first party to send the ""close notify"" alert, \fISSL_shutdown()\fR will only send the alert and then set the \s-1SSL_SENT_SHUTDOWN\s0 flag (so that the session is considered good and will be kept in cache). \fISSL_shutdown()\fR will then return with 0. If a unidirectional shutdown is enough (the underlying connection shall be closed anyway), this first call to \fISSL_shutdown()\fR is sufficient. In order to complete the bidirectional shutdown handshake, \fISSL_shutdown()\fR must be called again. The second call will make \fISSL_shutdown()\fR wait for the peer's ""close notify"" shutdown alert. On success, the second call to \fISSL_shutdown()\fR will return with 1." 4
+.el .IP "When the application is the first party to send the ``close notify'' alert, \fISSL_shutdown()\fR will only send the alert and then set the \s-1SSL_SENT_SHUTDOWN\s0 flag (so that the session is considered good and will be kept in cache). \fISSL_shutdown()\fR will then return with 0. If a unidirectional shutdown is enough (the underlying connection shall be closed anyway), this first call to \fISSL_shutdown()\fR is sufficient. In order to complete the bidirectional shutdown handshake, \fISSL_shutdown()\fR must be called again. The second call will make \fISSL_shutdown()\fR wait for the peer's ``close notify'' shutdown alert. On success, the second call to \fISSL_shutdown()\fR will return with 1." 4
+.IX Item "When the application is the first party to send the close notify alert, SSL_shutdown() will only send the alert and then set the SSL_SENT_SHUTDOWN flag (so that the session is considered good and will be kept in cache). SSL_shutdown() will then return with 0. If a unidirectional shutdown is enough (the underlying connection shall be closed anyway), this first call to SSL_shutdown() is sufficient. In order to complete the bidirectional shutdown handshake, SSL_shutdown() must be called again. The second call will make SSL_shutdown() wait for the peer's close notify shutdown alert. On success, the second call to SSL_shutdown() will return with 1."
.PD 0
-.if n .Ip "If the peer already sent the """"close notify"""" alert \fBand\fR it was already processed implicitly inside another function (SSL_read(3)), the \s-1SSL_RECEIVED_SHUTDOWN\s0 flag is set. \fISSL_shutdown()\fR will send the """"close notify"""" alert, set the \s-1SSL_SENT_SHUTDOWN\s0 flag and will immediately return with 1. Whether \s-1SSL_RECEIVED_SHUTDOWN\s0 is already set can be checked using the \fISSL_get_shutdown()\fR (see also SSL_set_shutdown(3) call." 4
-.el .Ip "If the peer already sent the ``close notify'' alert \fBand\fR it was already processed implicitly inside another function (SSL_read(3)), the \s-1SSL_RECEIVED_SHUTDOWN\s0 flag is set. \fISSL_shutdown()\fR will send the ``close notify'' alert, set the \s-1SSL_SENT_SHUTDOWN\s0 flag and will immediately return with 1. Whether \s-1SSL_RECEIVED_SHUTDOWN\s0 is already set can be checked using the \fISSL_get_shutdown()\fR (see also SSL_set_shutdown(3) call." 4
-.IX Item "If the peer already sent the "close notify alert and it was already processed implicitly inside another function (SSL_read(3)), the SSL_RECEIVED_SHUTDOWN flag is set. SSL_shutdown() will send the close notify alert, set the SSL_SENT_SHUTDOWN flag and will immediately return with 1. Whether SSL_RECEIVED_SHUTDOWN is already set can be checked using the SSL_get_shutdown() (see also SSL_set_shutdown(3) call."
+.ie n .IP "If the peer already sent the ""close notify"" alert \fBand\fR it was already processed implicitly inside another function (\fISSL_read\fR\|(3)), the \s-1SSL_RECEIVED_SHUTDOWN\s0 flag is set. \fISSL_shutdown()\fR will send the ""close notify"" alert, set the \s-1SSL_SENT_SHUTDOWN\s0 flag and will immediately return with 1. Whether \s-1SSL_RECEIVED_SHUTDOWN\s0 is already set can be checked using the \fISSL_get_shutdown()\fR (see also \fISSL_set_shutdown\fR\|(3) call." 4
+.el .IP "If the peer already sent the ``close notify'' alert \fBand\fR it was already processed implicitly inside another function (\fISSL_read\fR\|(3)), the \s-1SSL_RECEIVED_SHUTDOWN\s0 flag is set. \fISSL_shutdown()\fR will send the ``close notify'' alert, set the \s-1SSL_SENT_SHUTDOWN\s0 flag and will immediately return with 1. Whether \s-1SSL_RECEIVED_SHUTDOWN\s0 is already set can be checked using the \fISSL_get_shutdown()\fR (see also \fISSL_set_shutdown\fR\|(3) call." 4
+.IX Item "If the peer already sent the close notify alert and it was already processed implicitly inside another function (SSL_read), the SSL_RECEIVED_SHUTDOWN flag is set. SSL_shutdown() will send the close notify alert, set the SSL_SENT_SHUTDOWN flag and will immediately return with 1. Whether SSL_RECEIVED_SHUTDOWN is already set can be checked using the SSL_get_shutdown() (see also SSL_set_shutdown call."
.PD
.PP
It is therefore recommended, to check the return value of \fISSL_shutdown()\fR
@@ -206,32 +197,32 @@ into or retrieved out of the \s-1BIO\s0 before being able to continue.
.PP
\&\fISSL_shutdown()\fR can be modified to only set the connection to \*(L"shutdown\*(R"
state but not actually send the \*(L"close notify\*(R" alert messages,
-see SSL_CTX_set_quiet_shutdown(3).
+see \fISSL_CTX_set_quiet_shutdown\fR\|(3).
When \*(L"quiet shutdown\*(R" is enabled, \fISSL_shutdown()\fR will always succeed
and return 1.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
The following return values can occur:
-.Ip "1" 4
+.IP "1" 4
.IX Item "1"
The shutdown was successfully completed. The \*(L"close notify\*(R" alert was sent
and the peer's \*(L"close notify\*(R" alert was received.
-.Ip "0" 4
+.IP "0" 4
The shutdown is not yet finished. Call \fISSL_shutdown()\fR for a second time,
if a bidirectional shutdown shall be performed.
-The output of SSL_get_error(3) may be misleading, as an
+The output of \fISSL_get_error\fR\|(3) may be misleading, as an
erroneous \s-1SSL_ERROR_SYSCALL\s0 may be flagged even though no error occurred.
-.Ip "\-1" 4
+.IP "\-1" 4
.IX Item "-1"
The shutdown was not successful because a fatal error occurred either
at the protocol level or a connection failure occurred. It can also occur if
action is need to continue the operation for non-blocking BIOs.
-Call SSL_get_error(3) with the return value \fBret\fR
+Call \fISSL_get_error\fR\|(3) with the return value \fBret\fR
to find out the reason.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
-SSL_get_error(3), SSL_connect(3),
-SSL_accept(3), SSL_set_shutdown(3),
-SSL_CTX_set_quiet_shutdown(3),
-SSL_clear(3), SSL_free(3),
-ssl(3), bio(3)
+\&\fISSL_get_error\fR\|(3), \fISSL_connect\fR\|(3),
+\&\fISSL_accept\fR\|(3), \fISSL_set_shutdown\fR\|(3),
+\&\fISSL_CTX_set_quiet_shutdown\fR\|(3),
+\&\fISSL_clear\fR\|(3), \fISSL_free\fR\|(3),
+\&\fIssl\fR\|(3), \fIbio\fR\|(3)
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