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.TH "SASL_CALLBACKS" "3" "November 08, 2018" "2.1.27" "Cyrus SASL"
.SH NAME
sasl_callbacks \- Cyrus SASL documentation
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.SH SYNOPSIS
.sp
.nf
#include <sasl/sasl.h>
.fi
.SH DESCRIPTION
.sp
\fBsasl_callbacks\fP are used when the application needs some
information from the application. Common reasons are getting
for getting usernames and passwords. A client MUST
specify what callbacks they support in the
sasl_client_init(3)/sasl_server_init(3)
or sasl_client_new(3)/sasl_server_new(3)
calls. If an authentication mechanism needs a callback
that the application does not state it supports it cannot
be used.
.sp
If a callback has an id parameter that should be checked
to make sure you are giving the appropriate value.
.sp
If an application is using the client side of the library
functions to handle the callbacks are not necessary.
Instead the application may deal with callbacks via
SASL_INTERACT’s. See sasl_client_start(3)/sasl_client_step(3) for more
information.
.SS Common Callbacks
.INDENT 0.0
.TP
.B sasl_getopt_t
Get an option value
.TP
.B sasl_log_t
Log message handler
.TP
.B sasl_getpath_t
Get path to search for plugins (e.g. SASL mechanisms)
.TP
.B sasl_verifyfile_t
Verify files for use by SASL
.TP
.B sasl_canon_user_t(3)
Username canonicalization function
.UNINDENT
.SS Client\-only Callbacks
.INDENT 0.0
.TP
.B sasl_getsimple_t
Get user/language list
.TP
.B sasl_getsecret_t
Get authentication secret
.TP
.B sasl_chalprompt_t(3)
Display challenge and prompt for response
.TP
.B sasl_getrealm_t
Get the realm for authentication
.UNINDENT
.SS Server\-only Callbacks
.INDENT 0.0
.TP
.B sasl_authorize_t(3)
Authorize policy callback
.TP
.B sasl_server_userdb_checkpass_t
verify plaintext password
.TP
.B sasl_server_userdb_setpass_t
set plaintext password
.TP
.B sasl_getconfpath_t
Get path to search for SASL configuration file
(server side only). New in SASL 2.1.22.
.UNINDENT
.SH RETURN VALUE
.sp
SASL callback functions should return SASL return codes.
See sasl_errors(3) for a complete list. \fBSASL_OK\fP typically indicates success.
.SH CONFORMING TO
.sp
\fI\%RFC 4422\fP
.SH SEE ALSO
.sp
sasl(3), sasl_errors(3), sasl_authorize_t(3),
sasl_log_t(3), sasl_getpath_t(3),
sasl_getconfpath_t(3), sasl_verifyfile_t(3),
sasl_canon_user_t(3), sasl_getsimple_t(3),
sasl_getsecret_t(3), sasl_chalprompt_t(3),
sasl_getrealm_t(3), sasl_server_userdb_checkpass_t(3),
sasl_server_userdb_setpass_t(3)
.SH AUTHOR
The Cyrus Team
.SH COPYRIGHT
1993-2016, The Cyrus Team
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