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/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "str.h"
#include "dsasl-client-private.h"
enum login_state {
STATE_INIT = 0,
STATE_USER,
STATE_PASS
};
struct login_dsasl_client {
struct dsasl_client client;
enum login_state state;
};
static int
mech_login_input(struct dsasl_client *_client,
const unsigned char *input ATTR_UNUSED,
size_t input_len ATTR_UNUSED,
const char **error_r)
{
struct login_dsasl_client *client =
(struct login_dsasl_client *)_client;
if (client->state == STATE_PASS) {
*error_r = "Server didn't finish authentication";
return -1;
}
client->state++;
return 0;
}
static int
mech_login_output(struct dsasl_client *_client,
const unsigned char **output_r, size_t *output_len_r,
const char **error_r)
{
struct login_dsasl_client *client =
(struct login_dsasl_client *)_client;
if (_client->set.authid == NULL) {
*error_r = "authid not set";
return -1;
}
if (_client->password == NULL) {
*error_r = "password not set";
return -1;
}
switch (client->state) {
case STATE_INIT:
*output_r = uchar_empty_ptr;
*output_len_r = 0;
return 0;
case STATE_USER:
*output_r = (const unsigned char *)_client->set.authid;
*output_len_r = strlen(_client->set.authid);
return 0;
case STATE_PASS:
*output_r = (const unsigned char *)_client->set.password;
*output_len_r = strlen(_client->set.password);
return 0;
}
i_unreached();
}
const struct dsasl_client_mech dsasl_client_mech_login = {
.name = "LOGIN",
.struct_size = sizeof(struct login_dsasl_client),
.input = mech_login_input,
.output = mech_login_output
};
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