Nexus File Manager

Quick: ⬆️ Parent 🌐 Root 🏠 Home 🌍 WWW 📁 Temp ⚙️ Etc

⚡ WordPress Admin 🔄 Refresh

✏️ SSL_get_mode.3ssl

← Back

.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.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.  \*(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-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "SSL_CTX_set_mode 3"
.TH SSL_CTX_set_mode 3 "2019-12-20" "1.0.2u" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
SSL_CTX_set_mode, SSL_set_mode, SSL_CTX_get_mode, SSL_get_mode \- manipulate SSL engine mode
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/ssl.h>
\&
\& long SSL_CTX_set_mode(SSL_CTX *ctx, long mode);
\& long SSL_set_mode(SSL *ssl, long mode);
\&
\& long SSL_CTX_get_mode(SSL_CTX *ctx);
\& long SSL_get_mode(SSL *ssl);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBSSL_CTX_set_mode()\fR adds the mode set via bitmask in \fBmode\fR to \fBctx\fR.
Options already set before are not cleared.
.PP
\&\fBSSL_set_mode()\fR adds the mode set via bitmask in \fBmode\fR to \fBssl\fR.
Options already set before are not cleared.
.PP
\&\fBSSL_CTX_get_mode()\fR returns the mode set for \fBctx\fR.
.PP
\&\fBSSL_get_mode()\fR returns the mode set for \fBssl\fR.
.SH "NOTES"
.IX Header "NOTES"
The following mode changes are available:
.IP "\s-1SSL_MODE_ENABLE_PARTIAL_WRITE\s0" 4
.IX Item "SSL_MODE_ENABLE_PARTIAL_WRITE"
Allow SSL_write(..., n) to return r with 0 < r < n (i.e. report success
when just a single record has been written). When not set (the default),
\&\fBSSL_write()\fR will only report success once the complete chunk was written.
Once \fBSSL_write()\fR returns with r, r bytes have been successfully written
and the next call to \fBSSL_write()\fR must only send the n\-r bytes left,
imitating the behaviour of \fBwrite()\fR.
.IP "\s-1SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER\s0" 4
.IX Item "SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER"
Make it possible to retry \fBSSL_write()\fR with changed buffer location
(the buffer contents must stay the same). This is not the default to avoid
the misconception that non-blocking \fBSSL_write()\fR behaves like
non-blocking \fBwrite()\fR.
.IP "\s-1SSL_MODE_AUTO_RETRY\s0" 4
.IX Item "SSL_MODE_AUTO_RETRY"
Never bother the application with retries if the transport is blocking.
If a renegotiation take place during normal operation, a
\&\fBSSL_read\fR\|(3) or \fBSSL_write\fR\|(3) would return
with \-1 and indicate the need to retry with \s-1SSL_ERROR_WANT_READ.\s0
In a non-blocking environment applications must be prepared to handle
incomplete read/write operations.
In a blocking environment, applications are not always prepared to
deal with read/write operations returning without success report. The
flag \s-1SSL_MODE_AUTO_RETRY\s0 will cause read/write operations to only
return after the handshake and successful completion.
.IP "\s-1SSL_MODE_RELEASE_BUFFERS\s0" 4
.IX Item "SSL_MODE_RELEASE_BUFFERS"
When we no longer need a read buffer or a write buffer for a given \s-1SSL,\s0
then release the memory we were using to hold it.  Released memory is
either appended to a list of unused \s-1RAM\s0 chunks on the \s-1SSL_CTX,\s0 or simply
freed if the list of unused chunks would become longer than 
\&\s-1SSL_CTX\-\s0>freelist_max_len, which defaults to 32.  Using this flag can
save around 34k per idle \s-1SSL\s0 connection.
This flag has no effect on \s-1SSL\s0 v2 connections, or on \s-1DTLS\s0 connections.
.IP "\s-1SSL_MODE_SEND_FALLBACK_SCSV\s0" 4
.IX Item "SSL_MODE_SEND_FALLBACK_SCSV"
Send \s-1TLS_FALLBACK_SCSV\s0 in the ClientHello.
To be set only by applications that reconnect with a downgraded protocol
version; see draft\-ietf\-tls\-downgrade\-scsv\-00 for details.
.Sp
\&\s-1DO NOT ENABLE THIS\s0 if your application attempts a normal handshake.
Only use this in explicit fallback retries, following the guidance
in draft\-ietf\-tls\-downgrade\-scsv\-00.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBSSL_CTX_set_mode()\fR and \fBSSL_set_mode()\fR return the new mode bitmask
after adding \fBmode\fR.
.PP
\&\fBSSL_CTX_get_mode()\fR and \fBSSL_get_mode()\fR return the current bitmask.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBssl\fR\|(3), \fBSSL_read\fR\|(3), \fBSSL_write\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
\&\s-1SSL_MODE_AUTO_RETRY\s0 as been added in OpenSSL 0.9.6.

Nexus File Manager v2.0

✏️ SSL_get_mode.3ssl