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8 .TH SASL_CLIENT_START 3SASL "Aug 26, 2003"
10 sasl_client_start \- perform a step in the authentication negotiation
14 \fBcc\fR [ \fIflag\fR ... ] \fIfile\fR ... \fB-lsasl\fR [ \fIlibrary\fR ... ]
15 #include <sasl/sasl.h>
17 \fBint\fR \fBsasl_client_start\fR(\fBsasl_conn_t *\fR\fIconn\fR, \fBconst char *\fR\fImechlist\fR,
18 \fBsasl_interact_t **\fR\fIprompt_need\fR, \fBconst char **\fR\fIclientout\fR,
19 \fBunsigned *\fR\fIclientoutlen\fR, \fBconst char **\fR\fImech\fR);
25 Use the \fBsasl_client_start()\fR interface to select a mechanism for
26 authentication and start the authentication session. The \fImechlist\fR
27 parameter holds the list of mechanisms that the client might like to use. The
28 mechanisms in the list are not necessarily supported by the client, nor are the
29 mechanisms necessarily valid. SASL determines which of the mechanisms to use
30 based upon the security preferences specified earlier. The list of mechanisms
31 is typically a list of mechanisms that the server supports, acquired from a
35 If \fBSASL_INTERACT\fR is returned, the library needs some values to be filled
36 in before it can proceed. The \fIprompt_need\fR structure is filled in with
37 requests. The application fullfills these requests and calls
38 \fBsasl_client_start()\fR again with identical parameters. The
39 \fIprompt_need\fR parameter is the same pointer as before, but it is filled in
48 The SASL connection context.
57 A list of mechanism that the server has available. Punctuation is ignored.
63 \fB\fIprompt_need\fR\fR
66 A list of prompts that are needed to continue, if necessary.
76 \fB\fIclientoutlen\fR\fR
79 \fIclientout\fR and \fIclientoutlen\fR are created. They contain the initial
80 client response to send to the server. It is the job of the client to send them
81 over the network to the server. Any protocol specific encodingthat is
82 necessary, for example \fBbase64\fR encoding, must be done by the client.
84 If the protocol lacks client-send-first capability, then set \fIclientout\fR to
85 \fINULL\fR. If there is no initial client-send, then *\fIclientout\fR will be
86 set to \fINULL\fR on return.
95 Contains the name of the chosen SASL mechanism, upon success.
101 \fBsasl_client_start()\fR returns an integer that corresponds to a SASL error
107 \fB\fBSASL_CONTINUE\fR\fR
110 The call to \fBsasl_client_start()\fR was successful, and more steps are needed
111 in the authentication.
116 All other error codes indicate an error situation that must be handled, or the
117 authentication session should be quit. See \fBsasl_errors\fR(3SASL) for
118 information on SASL error codes.
122 See \fBattributes\fR(5) for descriptions of the following attributes:
130 ATTRIBUTE TYPE ATTRIBUTE VALUE
132 Availablity SUNWlibsasl
134 Interface Stability Evolving
142 \fBsasl_errors\fR(3SASL), \fBattributes\fR(5)