int mail_tcp_connect(const char * server, uint16_t port)
{
return mail_tcp_connect_with_local_address(server, port, NULL, 0);
}
int mailstorage_generic_connect_with_local_address(mailsession_driver * driver,
char * servername,
uint16_t port,
char * local_address,
uint16_t local_port,
char * command,
int connection_type,
int cache_function_id,
char * cache_directory,
int flags_function_id,
char * flags_directory,
mailsession ** result)
{
int r;
int res;
mailstream * stream;
int fd;
mailsession * session;
int connect_result;
switch (connection_type) {
case CONNECTION_TYPE_PLAIN:
case CONNECTION_TYPE_TRY_STARTTLS:
case CONNECTION_TYPE_STARTTLS:
case CONNECTION_TYPE_TLS:
fd = mail_tcp_connect_with_local_address(servername, port,
local_address, local_port);
if (fd == -1) {
res = MAIL_ERROR_CONNECT;
goto err;
}
break;
case CONNECTION_TYPE_COMMAND:
case CONNECTION_TYPE_COMMAND_TRY_STARTTLS:
case CONNECTION_TYPE_COMMAND_STARTTLS:
case CONNECTION_TYPE_COMMAND_TLS:
fd = subcommand_connect(command, servername, port);
break;
default:
fd = -1;
break;
}
if (fd == -1) {
res = MAIL_ERROR_INVAL;
goto err;
}
switch (connection_type) {
case CONNECTION_TYPE_PLAIN:
case CONNECTION_TYPE_TRY_STARTTLS:
case CONNECTION_TYPE_STARTTLS:
case CONNECTION_TYPE_COMMAND:
case CONNECTION_TYPE_COMMAND_TRY_STARTTLS:
case CONNECTION_TYPE_COMMAND_STARTTLS:
stream = mailstream_socket_open(fd);
break;
case CONNECTION_TYPE_TLS:
case CONNECTION_TYPE_COMMAND_TLS:
stream = mailstream_ssl_open(fd);
break;
default:
stream = NULL;
break;
}
if (stream == NULL) {
res = MAIL_ERROR_STREAM;
close(fd);
goto err;
}
session = mailsession_new(driver);
if (session == NULL) {
res = MAIL_ERROR_MEMORY;
goto close_stream;
}
if (cache_directory != NULL) {
char cache_directory_server[PATH_MAX];
snprintf(cache_directory_server, PATH_MAX, "%s/%s",
cache_directory, servername);
r = mailsession_parameters(session,
cache_function_id,
cache_directory_server);
if (r != MAIL_NO_ERROR) {
res = r;
goto close_stream;
}
}
if (flags_directory != NULL) {
char flags_directory_server[PATH_MAX];
snprintf(flags_directory_server, PATH_MAX, "%s/%s",
flags_directory, servername);
r = mailsession_parameters(session,
flags_function_id,
flags_directory_server);
if (r != MAIL_NO_ERROR) {
res = r;
goto close_stream;
}
}
r = mailsession_connect_stream(session, stream);
switch (r) {
case MAIL_NO_ERROR_NON_AUTHENTICATED:
case MAIL_NO_ERROR_AUTHENTICATED:
case MAIL_NO_ERROR:
break;
default:
res = r;
goto free;
}
connect_result = r;
switch (connection_type) {
case CONNECTION_TYPE_TRY_STARTTLS:
case CONNECTION_TYPE_COMMAND_TRY_STARTTLS:
r = mailsession_starttls(session);
if ((r != MAIL_NO_ERROR) && (r != MAIL_ERROR_NO_TLS)) {
res = r;
goto free;
}
break;
case CONNECTION_TYPE_STARTTLS:
case CONNECTION_TYPE_COMMAND_STARTTLS:
r = mailsession_starttls(session);
if (r != MAIL_NO_ERROR) {
res = r;
goto free;
}
}
* result = session;
return connect_result;
close_stream:
mailstream_close(stream);
free:
mailsession_free(session);
err:
return res;
}
