mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-11-25 04:39:48 +00:00
Added Magnus Damm's tftp applet to Busybox.
This commit is contained in:
Mark Whitley
parent
016771834a
commit
450736cd3c
5
Config.h
5
Config.h
@ -104,6 +104,7 @@
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//#define BB_TEE
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//#define BB_TEST
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//#define BB_TELNET
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#define BB_TFTP
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#define BB_TOUCH
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//#define BB_TR
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#define BB_TRUE_FALSE
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@ -312,6 +313,10 @@
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// Support for the -A -B and -C context flags in grep
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//#define BB_FEATURE_GREP_CONTEXT
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//
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// Tell tftp what commands that should be supported.
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#define BB_FEATURE_TFTP_PUT
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#define BB_FEATURE_TFTP_GET
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//
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// End of Features List
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//
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//
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@ -356,6 +356,9 @@
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#ifdef BB_TEST
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APPLET(test, test_main, _BB_DIR_USR_BIN)
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#endif
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#ifdef BB_TFTP
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APPLET(tftp, tftp_main, _BB_DIR_USR_BIN)
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#endif
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#ifdef BB_TOUCH
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APPLET(touch, touch_main, _BB_DIR_BIN)
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#endif
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@ -994,6 +994,30 @@
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"Checks file types and compares values returning an exit\n" \
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"code determined by the value of EXPRESSION."
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#ifdef BB_FEATURE_TFTP_GET
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#define USAGE_TFTP_GET(a) a
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#else
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#define USAGE_TFTP_GET(a)
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#endif
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#ifdef BB_FEATURE_TFTP_PUT
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#define USAGE_TFTP_PUT(a) a
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#else
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#define USAGE_TFTP_PUT(a)
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#endif
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#define tftp_trivial_usage \
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"command SOURCE DEST"
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#define tftp_full_usage \
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"Transfers a file from/to a tftp server using \"octet\" mode.\n\n" \
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"Commands:\n" \
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USAGE_TFTP_GET( \
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"\tget\tGet file from server SOURCE and store to local DEST.\n" \
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) \
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USAGE_TFTP_PUT( \
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"\tput\tPut local file SOURCE to server DEST.\n" \
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) \
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"\nWhen nameing a server, use the syntax \"server:file\"."
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#define touch_trivial_usage \
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"[-c] file [file ...]"
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#define touch_full_usage \
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@ -356,6 +356,9 @@
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#ifdef BB_TEST
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APPLET(test, test_main, _BB_DIR_USR_BIN)
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#endif
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#ifdef BB_TFTP
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APPLET(tftp, tftp_main, _BB_DIR_USR_BIN)
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#endif
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#ifdef BB_TOUCH
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APPLET(touch, touch_main, _BB_DIR_BIN)
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#endif
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@ -994,6 +994,30 @@
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"Checks file types and compares values returning an exit\n" \
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"code determined by the value of EXPRESSION."
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#ifdef BB_FEATURE_TFTP_GET
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#define USAGE_TFTP_GET(a) a
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#else
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#define USAGE_TFTP_GET(a)
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#endif
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#ifdef BB_FEATURE_TFTP_PUT
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#define USAGE_TFTP_PUT(a) a
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#else
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#define USAGE_TFTP_PUT(a)
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#endif
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#define tftp_trivial_usage \
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"command SOURCE DEST"
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#define tftp_full_usage \
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"Transfers a file from/to a tftp server using \"octet\" mode.\n\n" \
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"Commands:\n" \
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USAGE_TFTP_GET( \
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"\tget\tGet file from server SOURCE and store to local DEST.\n" \
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) \
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USAGE_TFTP_PUT( \
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"\tput\tPut local file SOURCE to server DEST.\n" \
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) \
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"\nWhen nameing a server, use the syntax \"server:file\"."
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#define touch_trivial_usage \
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"[-c] file [file ...]"
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#define touch_full_usage \
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424
networking/tftp.c
Normal file
424
networking/tftp.c
Normal file
@ -0,0 +1,424 @@
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/* ------------------------------------------------------------------------- */
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/* tftp.c */
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/* */
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/* A simple tftp client for busybox. */
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/* Tries to follow RFC1350. */
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/* Only "octet" mode and 512-byte data blocks are supported. */
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/* */
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/* Copyright (C) 2001 Magnus Damm <damm@opensource.se> */
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/* */
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/* Parts of the code based on: */
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/* */
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/* atftp: Copyright (C) 2000 Jean-Pierre Lefebvre <helix@step.polymtl.ca> */
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/* and Remi Lefebvre <remi@debian.org> */
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/* */
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/* utftp: Copyright (C) 1999 Uwe Ohse <uwe@ohse.de> */
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/* */
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/* This program is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU General Public License as published by */
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/* the Free Software Foundation; either version 2 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, */
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/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
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/* General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public License */
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/* along with this program; if not, write to the Free Software */
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/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/* */
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/* ------------------------------------------------------------------------- */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/stat.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include "busybox.h"
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//#define BB_FEATURE_TFTP_DEBUG
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/* we don't need #ifdefs with these constants and optimization... */
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#ifdef BB_FEATURE_TFTP_GET
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#define BB_TFTP_GET (1 << 0)
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#else
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#define BB_TFTP_GET 0
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#endif
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#ifdef BB_FEATURE_TFTP_PUT
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#define BB_TFTP_PUT (1 << 1)
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#else
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#define BB_TFTP_PUT 0
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#endif
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#ifdef BB_FEATURE_TFTP_DEBUG
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#define BB_TFTP_DEBUG 1
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#else
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#define BB_TFTP_DEBUG 0
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#endif
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#define BB_TFTP_NO_RETRIES 5
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#define BB_TFTP_TIMEOUT 5 /* seconds */
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#define RRQ 1 /* read request */
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#define WRQ 2 /* write request */
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#define DATA 3 /* data packet */
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#define ACK 4 /* acknowledgement */
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#define ERROR 5 /* error code */
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#define BUFSIZE (512+4)
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static const char *tftp_error_msg[] = {
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"Undefined error",
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"File not found",
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"Access violation",
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"Disk full or allocation error",
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"Illegal TFTP operation",
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"Unknown transfer ID",
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"File already exists",
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"No such user"
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};
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static inline int tftp(int cmd, struct hostent *host,
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char *serverfile, int localfd, int port)
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{
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struct sockaddr_in sa;
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int socketfd;
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struct timeval tv;
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fd_set rfds;
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struct sockaddr_in from;
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socklen_t fromlen;
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char *cp;
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unsigned short tmp;
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int len, opcode, finished;
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int timeout, block_nr;
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RESERVE_BB_BUFFER(buf, BUFSIZE);
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opcode = finished = timeout = 0;
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block_nr = 1;
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if ((socketfd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
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perror_msg("socket");
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return 1;
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}
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len = sizeof(sa);
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memset(&sa, 0, len);
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bind(socketfd, &sa, len);
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sa.sin_family = host->h_addrtype;
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sa.sin_port = htons(port);
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memcpy(&sa.sin_addr, (struct in_addr *) host->h_addr,
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sizeof(sa.sin_addr));
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/* build opcode */
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if (cmd & BB_TFTP_GET) {
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opcode = RRQ;
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}
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if (cmd & BB_TFTP_PUT) {
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opcode = WRQ;
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}
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while (1) {
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/* build packet of type "opcode" */
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cp = buf;
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*((unsigned short *) cp) = htons(opcode);
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cp += 2;
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/* add filename and mode */
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if ((BB_TFTP_GET && (opcode == RRQ)) ||
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(BB_TFTP_PUT && (opcode == WRQ))) {
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while (cp != &buf[BUFSIZE - 1]) {
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if ((*cp = *serverfile++) == '\0')
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break;
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cp++;
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}
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if ((*cp != '\0') || (&buf[BUFSIZE - 1] - cp) < 7) {
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error_msg("too long server-filename.\n");
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break;
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}
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memcpy(cp + 1, "octet", 6);
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cp += 7;
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}
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/* add ack and data */
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if ((BB_TFTP_GET && (opcode == ACK)) ||
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(BB_TFTP_PUT && (opcode == DATA))) {
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*((unsigned short *) cp) = htons(block_nr);
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cp += 2;
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block_nr++;
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if (BB_TFTP_PUT && (opcode == DATA)) {
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len = read(localfd, cp, BUFSIZE - 4);
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if (len < 0) {
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perror_msg("read");
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break;
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}
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if (len != (BUFSIZE - 4)) {
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finished++;
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}
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cp += len;
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} else if (finished) {
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break;
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}
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}
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/* send packet */
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do {
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len = cp - buf;
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if (BB_TFTP_DEBUG) {
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printf("sending %u bytes\n", len);
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for (cp = buf; cp < &buf[len]; cp++)
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printf("%02x ", *cp);
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printf("\n");
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}
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if (sendto(socketfd, buf, len, 0,
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(struct sockaddr *) &sa, sizeof(sa)) < 0) {
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perror_msg("send()");
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len = -1;
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break;
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}
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/* receive packet */
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memset(&from, 0, sizeof(from));
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fromlen = sizeof(from);
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tv.tv_sec = BB_TFTP_TIMEOUT;
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tv.tv_usec = 0;
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FD_ZERO(&rfds);
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FD_SET(socketfd, &rfds);
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switch (select(FD_SETSIZE, &rfds, NULL, NULL, &tv)) {
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case 1:
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len = recvfrom(socketfd, buf,
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BUFSIZE, 0,
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(struct sockaddr *) &from, &fromlen);
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if (len < 0) {
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perror_msg("recvfrom");
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break;
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}
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timeout = 0;
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if (sa.sin_port == htons(port)) {
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sa.sin_port = from.sin_port;
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break;
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}
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if (sa.sin_port == from.sin_port) {
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break;
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}
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/* fall-through for bad packets! */
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/* discard the packet - treat as timeout */
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case 0:
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error_msg("timeout.\n");
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if (!timeout) {
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timeout = BB_TFTP_NO_RETRIES;
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} else {
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timeout--;
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}
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if (!timeout) {
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len = -1;
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error_msg("last timeout!\n");
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}
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break;
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default:
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perror_msg("select");
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len = -1;
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}
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} while (timeout && (len >= 0));
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if (len < 0) {
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break;
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}
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/* process received packet */
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opcode = ntohs(*((unsigned short *) buf));
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tmp = ntohs(*((unsigned short *) &buf[2]));
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if (BB_TFTP_DEBUG) {
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printf("received %d bytes: %04x %04x\n", len, opcode, tmp);
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}
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if (BB_TFTP_GET && (opcode == DATA)) {
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if (tmp == block_nr) {
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len = write(localfd, &buf[4], len - 4);
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if (len < 0) {
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perror_msg("write");
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break;
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}
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if (len != (BUFSIZE - 4)) {
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finished++;
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}
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opcode = ACK;
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continue;
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}
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}
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if (BB_TFTP_PUT && (opcode == ACK)) {
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if (tmp == (block_nr - 1)) {
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if (finished) {
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break;
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}
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opcode = DATA;
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continue;
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}
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}
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if (opcode == ERROR) {
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char *msg = NULL;
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if (buf[4] != '\0') {
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msg = &buf[4];
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buf[BUFSIZE - 1] = '\0';
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} else if (tmp < (sizeof(tftp_error_msg) / sizeof(char *))) {
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msg = (char *) tftp_error_msg[tmp];
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}
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if (msg) {
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error_msg("server says: %s.\n", msg);
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}
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break;
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}
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}
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close(socketfd);
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if (finished) {
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return 0;
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}
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return 1;
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}
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int tftp_main(int argc, char **argv)
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{
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char *cp, *s;
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char *serverstr;
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struct hostent *host;
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char *serverfile;
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char *localfile;
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int cmd, flags, fd, bad;
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host = (void *) serverstr = serverfile = localfile = NULL;
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flags = cmd = 0;
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bad = 1;
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if (argc > 3) {
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if (BB_TFTP_GET && (strcmp(argv[1], "get") == 0)) {
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cmd = BB_TFTP_GET;
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flags = O_WRONLY | O_CREAT;
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serverstr = argv[2];
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localfile = argv[3];
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}
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if (BB_TFTP_PUT && (strcmp(argv[1], "put") == 0)) {
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cmd = BB_TFTP_PUT;
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flags = O_RDONLY;
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localfile = argv[2];
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serverstr = argv[3];
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}
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}
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if (!(cmd & (BB_TFTP_GET | BB_TFTP_PUT))) {
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show_usage();
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}
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for (cp = serverstr; *cp != '\0'; cp++)
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if (*cp == ':')
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break;
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if (*cp == ':') {
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serverfile = cp + 1;
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if ((s = strdup(serverstr))) {
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s[cp - serverstr] = '\0';
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if ((host = gethostbyname(s))) {
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bad = 0;
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}
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}
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free(s);
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}
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if (bad) {
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perror_msg_and_die("bad \"server:file\" combination");
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}
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if (BB_TFTP_DEBUG) {
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printf("using server \"%s\", serverfile \"%s\","
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"localfile \"%s\".\n",
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inet_ntoa(*((struct in_addr *) host->h_addr)),
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serverfile, localfile);
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}
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if ((fd = open(localfile, flags, 0644)) < 0) {
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perror_msg_and_die("local file");
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}
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flags = tftp(cmd, host, serverfile, fd, 69);
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close(fd);
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return flags;
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}
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424
tftp.c
Normal file
424
tftp.c
Normal file
@ -0,0 +1,424 @@
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/* ------------------------------------------------------------------------- */
|
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/* tftp.c */
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/* */
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/* A simple tftp client for busybox. */
|
||||
/* Tries to follow RFC1350. */
|
||||
/* Only "octet" mode and 512-byte data blocks are supported. */
|
||||
/* */
|
||||
/* Copyright (C) 2001 Magnus Damm <damm@opensource.se> */
|
||||
/* */
|
||||
/* Parts of the code based on: */
|
||||
/* */
|
||||
/* atftp: Copyright (C) 2000 Jean-Pierre Lefebvre <helix@step.polymtl.ca> */
|
||||
/* and Remi Lefebvre <remi@debian.org> */
|
||||
/* */
|
||||
/* utftp: Copyright (C) 1999 Uwe Ohse <uwe@ohse.de> */
|
||||
/* */
|
||||
/* 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 */
|
||||
/* the Free Software Foundation; either version 2 of the License, or */
|
||||
/* (at your option) any later version. */
|
||||
/* */
|
||||
/* This program is distributed in the hope that it will be useful, */
|
||||
/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
|
||||
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
|
||||
/* General Public License for more details. */
|
||||
/* */
|
||||
/* You should have received a copy of the GNU General Public License */
|
||||
/* along with this program; if not, write to the Free Software */
|
||||
/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
||||
/* */
|
||||
/* ------------------------------------------------------------------------- */
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/stat.h>
|
||||
#include <netdb.h>
|
||||
#include <netinet/in.h>
|
||||
#include <arpa/inet.h>
|
||||
#include <unistd.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
#include "busybox.h"
|
||||
|
||||
//#define BB_FEATURE_TFTP_DEBUG
|
||||
|
||||
/* we don't need #ifdefs with these constants and optimization... */
|
||||
|
||||
#ifdef BB_FEATURE_TFTP_GET
|
||||
#define BB_TFTP_GET (1 << 0)
|
||||
#else
|
||||
#define BB_TFTP_GET 0
|
||||
#endif
|
||||
|
||||
#ifdef BB_FEATURE_TFTP_PUT
|
||||
#define BB_TFTP_PUT (1 << 1)
|
||||
#else
|
||||
#define BB_TFTP_PUT 0
|
||||
#endif
|
||||
|
||||
#ifdef BB_FEATURE_TFTP_DEBUG
|
||||
#define BB_TFTP_DEBUG 1
|
||||
#else
|
||||
#define BB_TFTP_DEBUG 0
|
||||
#endif
|
||||
|
||||
#define BB_TFTP_NO_RETRIES 5
|
||||
#define BB_TFTP_TIMEOUT 5 /* seconds */
|
||||
|
||||
#define RRQ 1 /* read request */
|
||||
#define WRQ 2 /* write request */
|
||||
#define DATA 3 /* data packet */
|
||||
#define ACK 4 /* acknowledgement */
|
||||
#define ERROR 5 /* error code */
|
||||
|
||||
#define BUFSIZE (512+4)
|
||||
|
||||
static const char *tftp_error_msg[] = {
|
||||
"Undefined error",
|
||||
"File not found",
|
||||
"Access violation",
|
||||
"Disk full or allocation error",
|
||||
"Illegal TFTP operation",
|
||||
"Unknown transfer ID",
|
||||
"File already exists",
|
||||
"No such user"
|
||||
};
|
||||
|
||||
static inline int tftp(int cmd, struct hostent *host,
|
||||
char *serverfile, int localfd, int port)
|
||||
{
|
||||
struct sockaddr_in sa;
|
||||
int socketfd;
|
||||
struct timeval tv;
|
||||
fd_set rfds;
|
||||
struct sockaddr_in from;
|
||||
socklen_t fromlen;
|
||||
char *cp;
|
||||
unsigned short tmp;
|
||||
int len, opcode, finished;
|
||||
int timeout, block_nr;
|
||||
|
||||
RESERVE_BB_BUFFER(buf, BUFSIZE);
|
||||
|
||||
opcode = finished = timeout = 0;
|
||||
block_nr = 1;
|
||||
|
||||
if ((socketfd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
|
||||
perror_msg("socket");
|
||||
return 1;
|
||||
}
|
||||
|
||||
len = sizeof(sa);
|
||||
|
||||
memset(&sa, 0, len);
|
||||
bind(socketfd, &sa, len);
|
||||
|
||||
sa.sin_family = host->h_addrtype;
|
||||
sa.sin_port = htons(port);
|
||||
memcpy(&sa.sin_addr, (struct in_addr *) host->h_addr,
|
||||
sizeof(sa.sin_addr));
|
||||
|
||||
/* build opcode */
|
||||
|
||||
if (cmd & BB_TFTP_GET) {
|
||||
opcode = RRQ;
|
||||
}
|
||||
|
||||
if (cmd & BB_TFTP_PUT) {
|
||||
opcode = WRQ;
|
||||
}
|
||||
|
||||
while (1) {
|
||||
|
||||
|
||||
/* build packet of type "opcode" */
|
||||
|
||||
|
||||
cp = buf;
|
||||
|
||||
*((unsigned short *) cp) = htons(opcode);
|
||||
|
||||
cp += 2;
|
||||
|
||||
/* add filename and mode */
|
||||
|
||||
if ((BB_TFTP_GET && (opcode == RRQ)) ||
|
||||
(BB_TFTP_PUT && (opcode == WRQ))) {
|
||||
|
||||
while (cp != &buf[BUFSIZE - 1]) {
|
||||
if ((*cp = *serverfile++) == '\0')
|
||||
break;
|
||||
cp++;
|
||||
}
|
||||
|
||||
if ((*cp != '\0') || (&buf[BUFSIZE - 1] - cp) < 7) {
|
||||
error_msg("too long server-filename.\n");
|
||||
break;
|
||||
}
|
||||
|
||||
memcpy(cp + 1, "octet", 6);
|
||||
cp += 7;
|
||||
}
|
||||
|
||||
/* add ack and data */
|
||||
|
||||
if ((BB_TFTP_GET && (opcode == ACK)) ||
|
||||
(BB_TFTP_PUT && (opcode == DATA))) {
|
||||
|
||||
*((unsigned short *) cp) = htons(block_nr);
|
||||
|
||||
cp += 2;
|
||||
|
||||
block_nr++;
|
||||
|
||||
if (BB_TFTP_PUT && (opcode == DATA)) {
|
||||
len = read(localfd, cp, BUFSIZE - 4);
|
||||
|
||||
if (len < 0) {
|
||||
perror_msg("read");
|
||||
break;
|
||||
}
|
||||
|
||||
if (len != (BUFSIZE - 4)) {
|
||||
finished++;
|
||||
}
|
||||
|
||||
cp += len;
|
||||
} else if (finished) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* send packet */
|
||||
|
||||
|
||||
do {
|
||||
|
||||
len = cp - buf;
|
||||
|
||||
if (BB_TFTP_DEBUG) {
|
||||
printf("sending %u bytes\n", len);
|
||||
|
||||
for (cp = buf; cp < &buf[len]; cp++)
|
||||
printf("%02x ", *cp);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
if (sendto(socketfd, buf, len, 0,
|
||||
(struct sockaddr *) &sa, sizeof(sa)) < 0) {
|
||||
perror_msg("send()");
|
||||
len = -1;
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
/* receive packet */
|
||||
|
||||
|
||||
memset(&from, 0, sizeof(from));
|
||||
fromlen = sizeof(from);
|
||||
|
||||
tv.tv_sec = BB_TFTP_TIMEOUT;
|
||||
tv.tv_usec = 0;
|
||||
|
||||
FD_ZERO(&rfds);
|
||||
FD_SET(socketfd, &rfds);
|
||||
|
||||
switch (select(FD_SETSIZE, &rfds, NULL, NULL, &tv)) {
|
||||
case 1:
|
||||
len = recvfrom(socketfd, buf,
|
||||
BUFSIZE, 0,
|
||||
(struct sockaddr *) &from, &fromlen);
|
||||
|
||||
if (len < 0) {
|
||||
perror_msg("recvfrom");
|
||||
break;
|
||||
}
|
||||
|
||||
timeout = 0;
|
||||
|
||||
if (sa.sin_port == htons(port)) {
|
||||
sa.sin_port = from.sin_port;
|
||||
break;
|
||||
}
|
||||
|
||||
if (sa.sin_port == from.sin_port) {
|
||||
break;
|
||||
}
|
||||
|
||||
/* fall-through for bad packets! */
|
||||
/* discard the packet - treat as timeout */
|
||||
|
||||
case 0:
|
||||
error_msg("timeout.\n");
|
||||
|
||||
if (!timeout) {
|
||||
timeout = BB_TFTP_NO_RETRIES;
|
||||
} else {
|
||||
timeout--;
|
||||
}
|
||||
|
||||
if (!timeout) {
|
||||
len = -1;
|
||||
error_msg("last timeout!\n");
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
perror_msg("select");
|
||||
len = -1;
|
||||
}
|
||||
|
||||
} while (timeout && (len >= 0));
|
||||
|
||||
if (len < 0) {
|
||||
break;
|
||||
}
|
||||
|
||||
/* process received packet */
|
||||
|
||||
|
||||
opcode = ntohs(*((unsigned short *) buf));
|
||||
tmp = ntohs(*((unsigned short *) &buf[2]));
|
||||
|
||||
if (BB_TFTP_DEBUG) {
|
||||
printf("received %d bytes: %04x %04x\n", len, opcode, tmp);
|
||||
}
|
||||
|
||||
if (BB_TFTP_GET && (opcode == DATA)) {
|
||||
|
||||
if (tmp == block_nr) {
|
||||
len = write(localfd, &buf[4], len - 4);
|
||||
|
||||
if (len < 0) {
|
||||
perror_msg("write");
|
||||
break;
|
||||
}
|
||||
|
||||
if (len != (BUFSIZE - 4)) {
|
||||
finished++;
|
||||
}
|
||||
|
||||
opcode = ACK;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (BB_TFTP_PUT && (opcode == ACK)) {
|
||||
|
||||
if (tmp == (block_nr - 1)) {
|
||||
if (finished) {
|
||||
break;
|
||||
}
|
||||
|
||||
opcode = DATA;
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
if (opcode == ERROR) {
|
||||
char *msg = NULL;
|
||||
|
||||
if (buf[4] != '\0') {
|
||||
msg = &buf[4];
|
||||
buf[BUFSIZE - 1] = '\0';
|
||||
} else if (tmp < (sizeof(tftp_error_msg) / sizeof(char *))) {
|
||||
msg = (char *) tftp_error_msg[tmp];
|
||||
}
|
||||
|
||||
if (msg) {
|
||||
error_msg("server says: %s.\n", msg);
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
close(socketfd);
|
||||
|
||||
if (finished) {
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int tftp_main(int argc, char **argv)
|
||||
{
|
||||
char *cp, *s;
|
||||
char *serverstr;
|
||||
struct hostent *host;
|
||||
char *serverfile;
|
||||
char *localfile;
|
||||
int cmd, flags, fd, bad;
|
||||
|
||||
host = (void *) serverstr = serverfile = localfile = NULL;
|
||||
flags = cmd = 0;
|
||||
bad = 1;
|
||||
|
||||
if (argc > 3) {
|
||||
if (BB_TFTP_GET && (strcmp(argv[1], "get") == 0)) {
|
||||
cmd = BB_TFTP_GET;
|
||||
flags = O_WRONLY | O_CREAT;
|
||||
serverstr = argv[2];
|
||||
localfile = argv[3];
|
||||
}
|
||||
|
||||
if (BB_TFTP_PUT && (strcmp(argv[1], "put") == 0)) {
|
||||
cmd = BB_TFTP_PUT;
|
||||
flags = O_RDONLY;
|
||||
localfile = argv[2];
|
||||
serverstr = argv[3];
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
if (!(cmd & (BB_TFTP_GET | BB_TFTP_PUT))) {
|
||||
show_usage();
|
||||
}
|
||||
|
||||
for (cp = serverstr; *cp != '\0'; cp++)
|
||||
if (*cp == ':')
|
||||
break;
|
||||
|
||||
if (*cp == ':') {
|
||||
|
||||
serverfile = cp + 1;
|
||||
|
||||
if ((s = strdup(serverstr))) {
|
||||
s[cp - serverstr] = '\0';
|
||||
|
||||
if ((host = gethostbyname(s))) {
|
||||
bad = 0;
|
||||
}
|
||||
}
|
||||
|
||||
free(s);
|
||||
}
|
||||
if (bad) {
|
||||
perror_msg_and_die("bad \"server:file\" combination");
|
||||
}
|
||||
|
||||
if (BB_TFTP_DEBUG) {
|
||||
printf("using server \"%s\", serverfile \"%s\","
|
||||
"localfile \"%s\".\n",
|
||||
inet_ntoa(*((struct in_addr *) host->h_addr)),
|
||||
serverfile, localfile);
|
||||
}
|
||||
|
||||
if ((fd = open(localfile, flags, 0644)) < 0) {
|
||||
perror_msg_and_die("local file");
|
||||
}
|
||||
|
||||
flags = tftp(cmd, host, serverfile, fd, 69);
|
||||
|
||||
close(fd);
|
||||
|
||||
return flags;
|
||||
}
|
||||
24
usage.h
24
usage.h
@ -994,6 +994,30 @@
|
||||
"Checks file types and compares values returning an exit\n" \
|
||||
"code determined by the value of EXPRESSION."
|
||||
|
||||
#ifdef BB_FEATURE_TFTP_GET
|
||||
#define USAGE_TFTP_GET(a) a
|
||||
#else
|
||||
#define USAGE_TFTP_GET(a)
|
||||
#endif
|
||||
#ifdef BB_FEATURE_TFTP_PUT
|
||||
#define USAGE_TFTP_PUT(a) a
|
||||
#else
|
||||
#define USAGE_TFTP_PUT(a)
|
||||
#endif
|
||||
|
||||
#define tftp_trivial_usage \
|
||||
"command SOURCE DEST"
|
||||
#define tftp_full_usage \
|
||||
"Transfers a file from/to a tftp server using \"octet\" mode.\n\n" \
|
||||
"Commands:\n" \
|
||||
USAGE_TFTP_GET( \
|
||||
"\tget\tGet file from server SOURCE and store to local DEST.\n" \
|
||||
) \
|
||||
USAGE_TFTP_PUT( \
|
||||
"\tput\tPut local file SOURCE to server DEST.\n" \
|
||||
) \
|
||||
"\nWhen nameing a server, use the syntax \"server:file\"."
|
||||
|
||||
#define touch_trivial_usage \
|
||||
"[-c] file [file ...]"
|
||||
#define touch_full_usage \
|
||||
|
||||
Loading…
Reference in New Issue
Block a user