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/* Copyright (c) 2016-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "dsasl-client-private.h"
struct external_dsasl_client {
struct dsasl_client client;
bool output_sent;
};
static int
mech_external_input(struct dsasl_client *_client,
const unsigned char *input ATTR_UNUSED, size_t input_len,
const char **error_r)
{
struct external_dsasl_client *client =
(struct external_dsasl_client *)_client;
if (!client->output_sent) {
if (input_len > 0) {
*error_r = "Server sent non-empty initial response";
return -1;
}
} else {
*error_r = "Server didn't finish authentication";
return -1;
}
return 0;
}
static int
mech_external_output(struct dsasl_client *_client,
const unsigned char **output_r, size_t *output_len_r,
const char **error_r ATTR_UNUSED)
{
struct external_dsasl_client *client =
(struct external_dsasl_client *)_client;
const char *username;
if (_client->set.authzid != NULL)
username = _client->set.authzid;
else if (_client->set.authid != NULL)
username = _client->set.authid;
else
username = "";
*output_r = (const void *)username;
*output_len_r = strlen(username);
client->output_sent = TRUE;
return 0;
}
const struct dsasl_client_mech dsasl_client_mech_external = {
.name = "EXTERNAL",
.struct_size = sizeof(struct external_dsasl_client),
.input = mech_external_input,
.output = mech_external_output
};
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