diff options
Diffstat (limited to 'secure/lib/libssl/man/SSL_CTX_set_info_callback.3')
-rw-r--r-- | secure/lib/libssl/man/SSL_CTX_set_info_callback.3 | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/secure/lib/libssl/man/SSL_CTX_set_info_callback.3 b/secure/lib/libssl/man/SSL_CTX_set_info_callback.3 new file mode 100644 index 0000000..1eab312 --- /dev/null +++ b/secure/lib/libssl/man/SSL_CTX_set_info_callback.3 @@ -0,0 +1,284 @@ +.\" Automatically generated by Pod::Man version 1.15 +.\" Wed Feb 19 16:47:41 2003 +.\" +.\" Standard preamble: +.\" ====================================================================== +.de Sh \" Subsection heading +.br +.if t .Sp +.ne 5 +.PP +\fB\\$1\fR +.PP +.. +.de Sp \" Vertical space (when we can't use .PP) +.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 +.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. | 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<> +.tr \(*W-|\(bv\*(Tr +.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" '' +'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 \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. nr % 0 +. rr F +.\} +.\" +.\" 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 +. 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_info_callback 3" +.TH SSL_CTX_set_info_callback 3 "0.9.7a" "2003-02-19" "OpenSSL" +.UC +.SH "NAME" +SSL_CTX_set_info_callback, SSL_CTX_get_info_callback, SSL_set_info_callback, SSL_get_info_callback \- handle information callback for \s-1SSL\s0 connections +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/ssl.h> +.Ve +.Vb 2 +\& void SSL_CTX_set_info_callback(SSL_CTX *ctx, void (*callback)()); +\& void (*SSL_CTX_get_info_callback(SSL_CTX *ctx))(); +.Ve +.Vb 2 +\& void SSL_set_info_callback(SSL *ssl, void (*callback)()); +\& void (*SSL_get_info_callback(SSL *ssl))(); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +\&\fISSL_CTX_set_info_callback()\fR sets the \fBcallback\fR function, that can be used to +obtain state information for \s-1SSL\s0 objects created from \fBctx\fR during connection +setup and use. The setting for \fBctx\fR is overridden from the setting for +a specific \s-1SSL\s0 object, if specified. +When \fBcallback\fR is \s-1NULL\s0, not callback function is used. +.PP +\&\fISSL_set_info_callback()\fR sets the \fBcallback\fR function, that can be used to +obtain state information for \fBssl\fR during connection setup and use. +When \fBcallback\fR is \s-1NULL\s0, the callback setting currently valid for +\&\fBctx\fR is used. +.PP +\&\fISSL_CTX_get_info_callback()\fR returns a pointer to the currently set information +callback function for \fBctx\fR. +.PP +\&\fISSL_get_info_callback()\fR returns a pointer to the currently set information +callback function for \fBssl\fR. +.SH "NOTES" +.IX Header "NOTES" +When setting up a connection and during use, it is possible to obtain state +information from the \s-1SSL/TLS\s0 engine. When set, an information callback function +is called whenever the state changes, an alert appears, or an error occurs. +.PP +The callback function is called as \fBcallback(\s-1SSL\s0 *ssl, int where, int ret)\fR. +The \fBwhere\fR argument specifies information about where (in which context) +the callback function was called. If \fBret\fR is 0, an error condition occurred. +If an alert is handled, \s-1SSL_CB_ALERT\s0 is set and \fBret\fR specifies the alert +information. +.PP +\&\fBwhere\fR is a bitmask made up of the following bits: +.Ip "\s-1SSL_CB_LOOP\s0" 4 +.IX Item "SSL_CB_LOOP" +Callback has been called to indicate state change inside a loop. +.Ip "\s-1SSL_CB_EXIT\s0" 4 +.IX Item "SSL_CB_EXIT" +Callback has been called to indicate error exit of a handshake function. +(May be soft error with retry option for non-blocking setups.) +.Ip "\s-1SSL_CB_READ\s0" 4 +.IX Item "SSL_CB_READ" +Callback has been called during read operation. +.Ip "\s-1SSL_CB_WRITE\s0" 4 +.IX Item "SSL_CB_WRITE" +Callback has been called during write operation. +.Ip "\s-1SSL_CB_ALERT\s0" 4 +.IX Item "SSL_CB_ALERT" +Callback has been called due to an alert being sent or received. +.Ip "\s-1SSL_CB_READ_ALERT\s0 (SSL_CB_ALERT|SSL_CB_READ)" 4 +.IX Item "SSL_CB_READ_ALERT (SSL_CB_ALERT|SSL_CB_READ)" +.PD 0 +.Ip "\s-1SSL_CB_WRITE_ALERT\s0 (SSL_CB_ALERT|SSL_CB_WRITE)" 4 +.IX Item "SSL_CB_WRITE_ALERT (SSL_CB_ALERT|SSL_CB_WRITE)" +.Ip "\s-1SSL_CB_ACCEPT_LOOP\s0 (SSL_ST_ACCEPT|SSL_CB_LOOP)" 4 +.IX Item "SSL_CB_ACCEPT_LOOP (SSL_ST_ACCEPT|SSL_CB_LOOP)" +.Ip "\s-1SSL_CB_ACCEPT_EXIT\s0 (SSL_ST_ACCEPT|SSL_CB_EXIT)" 4 +.IX Item "SSL_CB_ACCEPT_EXIT (SSL_ST_ACCEPT|SSL_CB_EXIT)" +.Ip "\s-1SSL_CB_CONNECT_LOOP\s0 (SSL_ST_CONNECT|SSL_CB_LOOP)" 4 +.IX Item "SSL_CB_CONNECT_LOOP (SSL_ST_CONNECT|SSL_CB_LOOP)" +.Ip "\s-1SSL_CB_CONNECT_EXIT\s0 (SSL_ST_CONNECT|SSL_CB_EXIT)" 4 +.IX Item "SSL_CB_CONNECT_EXIT (SSL_ST_CONNECT|SSL_CB_EXIT)" +.Ip "\s-1SSL_CB_HANDSHAKE_START\s0" 4 +.IX Item "SSL_CB_HANDSHAKE_START" +.PD +Callback has been called because a new handshake is started. +.Ip "\s-1SSL_CB_HANDSHAKE_DONE\s0 0x20" 4 +.IX Item "SSL_CB_HANDSHAKE_DONE 0x20" +Callback has been called because a handshake is finished. +.PP +The current state information can be obtained using the +SSL_state_string(3) family of functions. +.PP +The \fBret\fR information can be evaluated using the +SSL_alert_type_string(3) family of functions. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +\&\fISSL_set_info_callback()\fR does not provide diagnostic information. +.PP +\&\fISSL_get_info_callback()\fR returns the current setting. +.SH "EXAMPLES" +.IX Header "EXAMPLES" +The following example callback function prints state strings, information +about alerts being handled and error messages to the \fBbio_err\fR \s-1BIO\s0. +.PP +.Vb 4 +\& void apps_ssl_info_callback(SSL *s, int where, int ret) +\& { +\& const char *str; +\& int w; +.Ve +.Vb 1 +\& w=where& ~SSL_ST_MASK; +.Ve +.Vb 3 +\& if (w & SSL_ST_CONNECT) str="SSL_connect"; +\& else if (w & SSL_ST_ACCEPT) str="SSL_accept"; +\& else str="undefined"; +.Ve +.Vb 24 +\& if (where & SSL_CB_LOOP) +\& { +\& BIO_printf(bio_err,"%s:%s\en",str,SSL_state_string_long(s)); +\& } +\& else if (where & SSL_CB_ALERT) +\& { +\& str=(where & SSL_CB_READ)?"read":"write"; +\& BIO_printf(bio_err,"SSL3 alert %s:%s:%s\en", +\& str, +\& SSL_alert_type_string_long(ret), +\& SSL_alert_desc_string_long(ret)); +\& } +\& else if (where & SSL_CB_EXIT) +\& { +\& if (ret == 0) +\& BIO_printf(bio_err,"%s:failed in %s\en", +\& str,SSL_state_string_long(s)); +\& else if (ret < 0) +\& { +\& BIO_printf(bio_err,"%s:error in %s\en", +\& str,SSL_state_string_long(s)); +\& } +\& } +\& } +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +ssl(3), SSL_state_string(3), +SSL_alert_type_string(3) |