Automatically generated by Pod::Man 2.27 (Pod::Simple 3.28)

Standard preamble:
========================================================================
..

..

.. 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 -- \(*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\} . 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.

If the F register is turned on, 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'.
.. .nr rF 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 . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . 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 . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . 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 .\} ========================================================================

Title "d2i_SSL_SESSION 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
d2i_SSL_SESSION, i2d_SSL_SESSION - convert SSL_SESSION object from/to ASN1 representation Header "SYNOPSIS" .Vb 1 #include <openssl/ssl.h> \& SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp, long length); int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp); .Ve Header "DESCRIPTION" \fId2i_SSL_SESSION() transforms the external \s-1ASN1\s0 representation of an \s-1SSL/TLS\s0 session, stored as binary data at location pp with length length, into an \s-1SSL_SESSION\s0 object.

\fIi2d_SSL_SESSION() transforms the \s-1SSL_SESSION\s0 object in into the \s-1ASN1\s0 representation and stores it into the memory location pointed to by pp. The length of the resulting \s-1ASN1\s0 representation is returned. If pp is the \s-1NULL\s0 pointer, only the length is calculated and returned.

Header "NOTES" The \s-1SSL_SESSION\s0 object is built from several malloc()ed parts, it can therefore not be moved, copied or stored directly. In order to store session data on disk or into a database, it must be transformed into a binary \s-1ASN1\s0 representation.

When using d2i_SSL_SESSION(), the \s-1SSL_SESSION\s0 object is automatically allocated. The reference count is 1, so that the session must be explicitly removed using SSL_SESSION_free\|(3), unless the \s-1SSL_SESSION\s0 object is completely taken over, when being called inside the get_session_cb() (see \fISSL_CTX_sess_set_get_cb\|(3)).

\s-1SSL_SESSION\s0 objects keep internal link information about the session cache list, when being inserted into one \s-1SSL_CTX\s0 object's session cache. One \s-1SSL_SESSION\s0 object, regardless of its reference count, must therefore only be used with one \s-1SSL_CTX\s0 object (and the \s-1SSL\s0 objects created from this \s-1SSL_CTX\s0 object).

When using i2d_SSL_SESSION(), the memory location pointed to by pp must be large enough to hold the binary representation of the session. There is no known limit on the size of the created \s-1ASN1\s0 representation, so the necessary amount of space should be obtained by first calling i2d_SSL_SESSION() with \fBpp=NULL, and obtain the size needed, then allocate the memory and call i2d_SSL_SESSION() again. Note that this will advance the value contained in *pp so it is necessary to save a copy of the original allocation. For example: int i,j; char *p, *temp; i = i2d_SSL_SESSION(sess, \s-1NULL\s0); p = temp = malloc(i); j = i2d_SSL_SESSION(sess, &temp); assert(i == j); assert(p+i == temp);

Header "RETURN VALUES" \fId2i_SSL_SESSION() returns a pointer to the newly allocated \s-1SSL_SESSION\s0 object. In case of failure the NULL-pointer is returned and the error message can be retrieved from the error stack.

\fIi2d_SSL_SESSION() returns the size of the \s-1ASN1\s0 representation in bytes. When the session is not valid, 0 is returned and no operation is performed.

Header "SEE ALSO" \fIssl\|(3), SSL_SESSION_free\|(3), \fISSL_CTX_sess_set_get_cb\|(3)