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Diffstat (limited to 'apps/nshlib/nsh_telnetd.c')
| -rw-r--r-- | apps/nshlib/nsh_telnetd.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/apps/nshlib/nsh_telnetd.c b/apps/nshlib/nsh_telnetd.c new file mode 100644 index 000000000..0117aad04 --- /dev/null +++ b/apps/nshlib/nsh_telnetd.c @@ -0,0 +1,187 @@ +/**************************************************************************** + * apps/nshlib/nsh_telnetd.c + * + * Copyright (C) 2007-2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name Gregory Nutt nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdio.h> +#include <unistd.h> +#include <assert.h> +#include <debug.h> + +#include <apps/netutils/telnetd.h> + +#include "nsh.h" +#include "nsh_console.h" + +#ifdef CONFIG_NSH_TELNET + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nsh_telnetmain + ****************************************************************************/ + +int nsh_telnetmain(int argc, char *argv[]) +{ + FAR struct console_stdio_s *pstate = nsh_newconsole(); + DEBUGASSERT(pstate != NULL); + + dbg("Session [%d] Started\n", getpid()); + + /* Present a greeting */ + + fputs(g_nshgreeting, pstate->cn_outstream); + fflush(pstate->cn_outstream); + + /* Execute the startup script */ + +#if defined(CONFIG_NSH_ROMFSETC) && !defined(CONFIG_NSH_CONSOLE) + (void)nsh_script(&pstate->cn_vtbl, "init", NSH_INITPATH); +#endif + + /* Then enter the command line parsing loop */ + + for (;;) + { + /* Display the prompt string */ + + fputs(g_nshprompt, pstate->cn_outstream); + fflush(pstate->cn_outstream); + + /* Get the next line of input from the Telnet client */ + + if (fgets(pstate->cn_line, CONFIG_NSH_LINELEN, INSTREAM(pstate)) != NULL) + { + /* Parse process the received Telnet command */ + + (void)nsh_parse(&pstate->cn_vtbl, pstate->cn_line); + fflush(pstate->cn_outstream); + } + else + { + fprintf(pstate->cn_outstream, g_fmtcmdfailed, "nsh_telnetmain", + "fgets", NSH_ERRNO); + nsh_exit(&pstate->cn_vtbl, 1); + } + } + + /* Clean up */ + + nsh_exit(&pstate->cn_vtbl, 0); + + /* We do not get here, but this is necessary to keep some compilers happy */ + + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nsh_telnetstart + * + * Description: + * nsh_telnetstart() starts the Telnet daemon that will allow multiple + * NSH connections via Telnet. This function returns immediately after + * the daemon has been started. + * + * Input Parameters: + * None. All of the properties of the Telnet daemon are controlled by + * NuttX configuration setting. + * + * Returned Values: + * Zero if the Telnet daemon was successfully started. A negated errno + * value will be returned on failure. + * + ****************************************************************************/ + +int nsh_telnetstart(void) +{ + struct telnetd_config_s config; + int ret; + + /* Configure the telnet daemon */ + + config.d_port = HTONS(CONFIG_NSH_TELNETD_PORT); + config.d_priority = CONFIG_NSH_TELNETD_DAEMONPRIO; + config.d_stacksize = CONFIG_NSH_TELNETD_DAEMONSTACKSIZE; + config.t_priority = CONFIG_NSH_TELNETD_CLIENTPRIO; + config.t_stacksize = CONFIG_NSH_TELNETD_CLIENTSTACKSIZE; + config.t_entry = nsh_telnetmain; + + /* Start the telnet daemon */ + + vdbg("Starting the Telnet daemon\n"); + ret = telnetd_start(&config); + if (ret < 0) + { + dbg("Failed to tart the Telnet daemon: %d\n", ret); + } + + return ret; +} + +#endif /* CONFIG_NSH_TELNET */ |