From 6000411dddd9930b99a4931bc363f425cc0fdcda Mon Sep 17 00:00:00 2001 From: =?utf8?q?=C3=98yvind=20Harboe?= Date: Wed, 8 Sep 2010 20:04:27 +0200 Subject: [PATCH] tcl_server: switch to ctrl-z MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit by using ctrl-z instead of line end, multi-line tcl scripts can be handled. Testing: send ctrl-z a couple of times to make telnet enter the mode where it sends ctrl-z unencoded. Programs that talk to the tcl_server can send ctrl-z to indicate end of tcl-let to be executed without having to worry about telnet protocols. Signed-off-by: Øyvind Harboe --- src/server/tcl_server.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/src/server/tcl_server.c b/src/server/tcl_server.c index 7c8e130b..06f67ab7 100644 --- a/src/server/tcl_server.c +++ b/src/server/tcl_server.c @@ -1,5 +1,6 @@ /*************************************************************************** - * Copyright (C) 2008 * + * Copyright (C) 2010 Øyvind Harboe * + * oyvind.harboe@zylin.com * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * @@ -104,13 +105,6 @@ static int tcl_input(struct connection *connection) /* push as much data into the line as possible */ for (i = 0; i < rlen; i++) { - if (!isprint(in[i]) && !isspace(in[i])) - { - /* drop this line */ - tclc->tc_linedrop = 1; - continue; - } - /* buffer the data */ tclc->tc_line[tclc->tc_lineoffset] = in[i]; if (tclc->tc_lineoffset < TCL_MAX_LINE) @@ -118,7 +112,11 @@ static int tcl_input(struct connection *connection) else tclc->tc_linedrop = 1; - if (in[i] != '\n') + /* ctrl-z is end of command. When testing from telnet, just + * press ctrl-z a couple of times first to put telnet into the + * mode where it will send 0x1a in response to pressing ctrl-z + */ + if (in[i] != '\x1a') continue; /* process the line */ @@ -131,13 +129,15 @@ static int tcl_input(struct connection *connection) } else { tclc->tc_line[tclc->tc_lineoffset-1] = '\0'; + LOG_DEBUG("Executing script:\n %s", tclc->tc_line); retval = Jim_Eval_Named(interp, tclc->tc_line, "remote:connection",1); + LOG_DEBUG("Result: %d\n %s", retval, Jim_GetString(Jim_GetResult(interp), &reslen)); result = Jim_GetString(Jim_GetResult(interp), &reslen); retval = tcl_output(connection, result, reslen); if (retval != ERROR_OK) return retval; - if (memchr(result, '\n', reslen) == NULL) - tcl_output(connection, "\n", 1); + /* Always output ctrl-d as end of line to allow multiline results */ + tcl_output(connection, "\x1a", 1); } tclc->tc_lineoffset = 0; -- 2.39.5