diff options
Diffstat (limited to 'apps/netutils/ftpc/ftpc_getreply.c')
| -rw-r--r-- | apps/netutils/ftpc/ftpc_getreply.c | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/apps/netutils/ftpc/ftpc_getreply.c b/apps/netutils/ftpc/ftpc_getreply.c new file mode 100644 index 000000000..86f1c7bfa --- /dev/null +++ b/apps/netutils/ftpc/ftpc_getreply.c @@ -0,0 +1,241 @@ +/**************************************************************************** + * apps/netutils/ftpc/ftpc_getreply.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 NuttX 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 <stdlib.h> +#include <string.h> +#include <debug.h> + +#include "ftpc_internal.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ftpc_gets + ****************************************************************************/ + +static int ftpc_gets(struct ftpc_session_s *session) +{ + int ch; + int i = 0; + + /* Start wth an empty response string */ + + session->reply[0] = '\0'; + + /* Verify that the command channel is still connected */ + + if (!ftpc_sockconnected(&session->cmd)) + { + ndbg("Cmd channel disconnected\n"); + return ERROR; + } + + /* Loop until the full line is obtained */ + + for (;;) + { + /* Get the next character from incoming command stream */ + + ch = ftpc_sockgetc(&session->cmd); + if (ch == EOF) + { + ndbg("EOF: Server closed command stream\n"); + ftpc_reset(session); + return ERROR; + } + else if (ch == TELNET_IAC) + { + /* Handle TELNET commands */ + + switch(ch = ftpc_sockgetc(&session->cmd)) + { + case TELNET_WILL: + case TELNET_WONT: + ch = ftpc_sockgetc(&session->cmd); + ftpc_sockprintf(&session->cmd, "%c%c%c", TELNET_IAC, TELNET_DONT, ch); + ftpc_sockflush(&session->cmd); + break; + + case TELNET_DO: + case TELNET_DONT: + ch = ftpc_sockgetc(&session->cmd); + ftpc_sockprintf(&session->cmd, "%c%c%c", TELNET_IAC, TELNET_WONT, ch); + ftpc_sockflush(&session->cmd); + break; + + default: + break; + } + + continue; + } + else if (ch == ISO_cr) + { + ch = ftpc_sockgetc(&session->cmd); + if (ch == '\0') + { + ch = ISO_cr; + } + else if (ch == ISO_nl) + { + session->reply[i++] = (char)ch; + break; + } + else if (ch != EOF) + { + /* TELNET protocol */ + + ungetc(ch, session->cmd.instream); + continue; + } + } + else if (ch == ISO_nl) + { + /* The ISO newline character terminates the string. Just break + * out of the loop. + */ + + break; + } + + if (i < CONFIG_FTP_MAXREPLY) + { + session->reply[i++] = (char)ch; + } + + if (i >= CONFIG_FTP_MAXREPLY) + { + ndbg("Reply truncated\n"); + i = CONFIG_FTP_MAXREPLY; + } + } + + session->reply[i] = '\0'; + session->code = atoi(session->reply); + ftpc_stripcrlf(session->reply); + return session->code; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: ftpc_getreply + ****************************************************************************/ + +int fptc_getreply(struct ftpc_session_s *session) +{ + char tmp[5]="xxx "; + int ret; + + /* Set up a timeout */ + + if (session->replytimeo) + { + ret = wd_start(session->wdog, session->replytimeo, ftpc_replytimeo, 1, session); + } + + /* Get the next line from the server */ + + ret = ftpc_gets(session); + + /* Do we still have a connection? */ + + if (!ftpc_sockconnected(&session->cmd)) + { + /* No.. cancel the timer and return an error */ + + wd_cancel(session->wdog); + nvdbg("Lost connection\n"); + return ERROR; + } + + /* Did an error occur? */ + + if (ret < 0) + { + /* No.. cancel the timer and return an error */ + + wd_cancel(session->wdog); + nvdbg("ftpc_gets failed\n"); + return ERROR; + } + + nvdbg("Reply: %s\n", session->reply); + + if (session->reply[3] == '-') + { + /* Multi-line response */ + + strncpy(tmp, session->reply, 3); + do + { + if (ftpc_gets(session) == -1) + { + break; + } + + nvdbg("Reply: %s\n", session->reply); + } while(strncmp(tmp, session->reply, 4) != 0); + } + + wd_cancel(session->wdog); + return ret; +} |