/** * Close current socket * for last socket close entire connection * for MARS send FIN request */ void tds_close_socket(TDSSOCKET * tds) { if (!IS_TDSDEAD(tds)) { #if ENABLE_ODBC_MARS TDSCONNECTION *conn = tds->conn; unsigned n = 0, count = 0; tds_mutex_lock(&conn->list_mtx); for (; n < conn->num_sessions; ++n) if (TDSSOCKET_VALID(conn->sessions[n])) ++count; if (count > 1) tds_append_fin(tds); tds_mutex_unlock(&conn->list_mtx); if (count <= 1) { tds_disconnect(tds); tds_connection_close(conn); } else { tds_set_state(tds, TDS_DEAD); } #else tds_disconnect(tds); if (CLOSESOCKET(tds_get_s(tds)) == -1) tdserror(tds_get_ctx(tds), tds, TDSECLOS, sock_errno); tds_set_s(tds, INVALID_SOCKET); tds_set_state(tds, TDS_DEAD); #endif } }
/* * pool_user_create * accepts a client connection and adds it to the users list and returns it */ TDS_POOL_USER * pool_user_create(TDS_POOL * pool, TDS_SYS_SOCKET s) { TDS_POOL_USER *puser; TDS_SYS_SOCKET fd; TDSSOCKET *tds; LOGIN_EVENT *ev; tdsdump_log(TDS_DBG_NETWORK, "accepting connection\n"); if (TDS_IS_SOCKET_INVALID(fd = tds_accept(s, NULL, NULL))) { char *errstr = sock_strerror(errno); tdsdump_log(TDS_DBG_ERROR, "error calling assert :%s\n", errstr); sock_strerror_free(errstr); return NULL; } if (tds_socket_set_nonblocking(fd) != 0) { CLOSESOCKET(fd); return NULL; } puser = pool_user_find_new(pool); if (!puser) { CLOSESOCKET(fd); return NULL; } tds = tds_alloc_socket(pool->ctx, BLOCKSIZ); if (!tds) { CLOSESOCKET(fd); return NULL; } ev = (LOGIN_EVENT *) calloc(1, sizeof(*ev)); if (!ev || TDS_FAILED(tds_iconv_open(tds->conn, "UTF-8", 0))) { free(ev); tds_free_socket(tds); CLOSESOCKET(fd); return NULL; } /* FIX ME - little endian emulation should be config file driven */ tds->conn->emul_little_endian = 1; tds_set_s(tds, fd); tds->state = TDS_IDLE; tds->out_flag = TDS_LOGIN; puser->sock.tds = tds; puser->user_state = TDS_SRV_QUERY; puser->sock.poll_recv = false; puser->sock.poll_send = false; /* launch login asyncronously */ ev->puser = puser; ev->pool = pool; if (tds_thread_create_detached(login_proc, ev) != 0) { pool_free_user(pool, puser); fprintf(stderr, "error creating thread\n"); return NULL; } return puser; }