2002-12-13 02:43:50 +00:00
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/* vi: set sw=4 ts=4: */
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/*
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2004-03-15 08:29:22 +00:00
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* ftpget
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*
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2002-12-13 02:43:50 +00:00
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* Mini implementation of FTP to retrieve a remote file.
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*
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* Copyright (C) 2002 Jeff Angielski, The PTR Group <jeff@theptrgroup.com>
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2004-04-25 05:11:19 +00:00
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* Copyright (C) 2002 Glenn McGrath <bug1@iinet.net.au>
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2002-12-13 02:43:50 +00:00
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*
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* Based on wget.c by Chip Rosenthal Covad Communications
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* <chip@laserlink.net>
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*
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2005-11-08 00:52:31 +00:00
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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2002-12-13 02:43:50 +00:00
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*/
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#include "busybox.h"
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2006-08-03 15:41:12 +00:00
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#include <getopt.h>
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2002-12-13 02:43:50 +00:00
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typedef struct ftp_host_info_s {
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char *user;
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char *password;
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2003-11-03 21:20:18 +00:00
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struct sockaddr_in *s_in;
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2002-12-13 02:43:50 +00:00
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} ftp_host_info_t;
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2003-12-20 03:19:27 +00:00
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static char verbose_flag = 0;
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2002-12-13 02:43:50 +00:00
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static char do_continue = 0;
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static int ftpcmd(const char *s1, const char *s2, FILE *stream, char *buf)
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{
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if (verbose_flag) {
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2003-03-19 09:13:01 +00:00
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bb_error_msg("cmd %s%s", s1, s2);
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2002-12-13 02:43:50 +00:00
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}
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if (s1) {
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if (s2) {
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2005-07-19 21:26:57 +00:00
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fprintf(stream, "%s%s\r\n", s1, s2);
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2002-12-13 02:43:50 +00:00
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} else {
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2005-07-19 21:26:57 +00:00
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fprintf(stream, "%s\r\n", s1);
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2002-12-13 02:43:50 +00:00
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}
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}
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do {
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2004-05-04 10:43:34 +00:00
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char *buf_ptr;
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2002-12-13 02:43:50 +00:00
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if (fgets(buf, 510, stream) == NULL) {
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2006-10-08 12:49:22 +00:00
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bb_perror_msg_and_die("fgets");
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2002-12-13 02:43:50 +00:00
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}
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2004-05-04 10:43:34 +00:00
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buf_ptr = strstr(buf, "\r\n");
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if (buf_ptr) {
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*buf_ptr = '\0';
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}
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2006-10-08 12:49:22 +00:00
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} while (!isdigit(buf[0]) || buf[3] != ' ');
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2002-12-13 02:43:50 +00:00
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2006-10-08 12:49:22 +00:00
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return xatou(buf);
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2002-12-13 02:43:50 +00:00
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}
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2003-11-03 21:20:18 +00:00
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static int xconnect_ftpdata(ftp_host_info_t *server, const char *buf)
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2002-12-13 02:43:50 +00:00
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{
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char *buf_ptr;
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unsigned short port_num;
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buf_ptr = strrchr(buf, ',');
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*buf_ptr = '\0';
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2006-10-08 12:49:22 +00:00
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port_num = xatoul_range(buf_ptr + 1, 0, 255);
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2002-12-13 02:43:50 +00:00
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buf_ptr = strrchr(buf, ',');
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*buf_ptr = '\0';
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2006-10-08 12:49:22 +00:00
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port_num += xatoul_range(buf_ptr + 1, 0, 255) * 256;
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2002-12-13 02:43:50 +00:00
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2006-10-08 12:49:22 +00:00
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server->s_in->sin_port = htons(port_num);
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2006-10-26 01:09:46 +00:00
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return xconnect_tcp_v4(server->s_in);
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2002-12-13 02:43:50 +00:00
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}
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static FILE *ftp_login(ftp_host_info_t *server)
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{
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FILE *control_stream;
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char buf[512];
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/* Connect to the command socket */
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2006-10-26 01:09:46 +00:00
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control_stream = fdopen(xconnect_tcp_v4(server->s_in), "r+");
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2002-12-13 02:43:50 +00:00
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if (control_stream == NULL) {
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2006-10-12 19:29:44 +00:00
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bb_perror_msg_and_die("cannot open control stream");
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2002-12-13 02:43:50 +00:00
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}
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if (ftpcmd(NULL, NULL, control_stream, buf) != 220) {
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2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("%s", buf + 4);
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2002-12-13 02:43:50 +00:00
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}
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/* Login to the server */
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switch (ftpcmd("USER ", server->user, control_stream, buf)) {
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case 230:
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break;
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case 331:
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if (ftpcmd("PASS ", server->password, control_stream, buf) != 230) {
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2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("PASS error: %s", buf + 4);
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2002-12-13 02:43:50 +00:00
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}
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break;
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default:
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2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("USER error: %s", buf + 4);
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2002-12-13 02:43:50 +00:00
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}
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ftpcmd("TYPE I", NULL, control_stream, buf);
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2006-11-27 16:49:31 +00:00
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return control_stream;
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2002-12-13 02:43:50 +00:00
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}
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2006-05-04 19:52:28 +00:00
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#if !ENABLE_FTPGET
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2006-10-08 17:54:47 +00:00
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int ftp_receive(ftp_host_info_t *server, FILE *control_stream,
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const char *local_path, char *server_path);
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2006-05-04 19:52:28 +00:00
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#else
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2006-10-08 17:54:47 +00:00
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static
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int ftp_receive(ftp_host_info_t *server, FILE *control_stream,
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2003-11-03 21:20:18 +00:00
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const char *local_path, char *server_path)
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2002-12-13 02:43:50 +00:00
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{
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char buf[512];
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off_t filesize = 0;
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int fd_data;
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2003-12-20 05:43:34 +00:00
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int fd_local = -1;
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2002-12-13 02:43:50 +00:00
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off_t beg_range = 0;
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/* Connect to the data socket */
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if (ftpcmd("PASV", NULL, control_stream, buf) != 227) {
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2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("PASV error: %s", buf + 4);
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2002-12-13 02:43:50 +00:00
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}
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2003-11-03 21:20:18 +00:00
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fd_data = xconnect_ftpdata(server, buf);
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2002-12-13 02:43:50 +00:00
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if (ftpcmd("SIZE ", server_path, control_stream, buf) == 213) {
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2006-11-27 14:43:21 +00:00
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filesize = BB_STRTOOFF(buf + 4, NULL, 10);
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if (errno || filesize < 0)
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2004-03-06 22:11:45 +00:00
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bb_error_msg_and_die("SIZE error: %s", buf + 4);
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2006-01-10 06:36:00 +00:00
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} else {
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filesize = -1;
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do_continue = 0;
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2002-12-13 02:43:50 +00:00
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}
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2006-12-16 23:49:13 +00:00
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if (LONE_DASH(local_path)) {
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2004-03-27 10:02:48 +00:00
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fd_local = STDOUT_FILENO;
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2003-12-20 05:43:34 +00:00
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do_continue = 0;
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}
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2002-12-13 02:43:50 +00:00
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if (do_continue) {
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struct stat sbuf;
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2003-12-20 05:43:34 +00:00
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if (lstat(local_path, &sbuf) < 0) {
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2006-10-08 17:54:47 +00:00
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bb_perror_msg_and_die("lstat");
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2002-12-13 02:43:50 +00:00
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}
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if (sbuf.st_size > 0) {
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beg_range = sbuf.st_size;
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} else {
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do_continue = 0;
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}
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}
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if (do_continue) {
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2006-11-24 14:53:18 +00:00
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sprintf(buf, "REST %"OFF_FMT"d", beg_range);
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2002-12-13 02:43:50 +00:00
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if (ftpcmd(buf, NULL, control_stream, buf) != 350) {
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do_continue = 0;
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} else {
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filesize -= beg_range;
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}
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}
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if (ftpcmd("RETR ", server_path, control_stream, buf) > 150) {
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2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("RETR error: %s", buf + 4);
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2002-12-13 02:43:50 +00:00
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}
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2002-12-18 02:47:40 +00:00
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/* only make a local file if we know that one exists on the remote server */
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2003-12-20 05:43:34 +00:00
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if (fd_local == -1) {
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if (do_continue) {
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2006-08-03 15:41:12 +00:00
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fd_local = xopen(local_path, O_APPEND | O_WRONLY);
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2003-12-20 05:43:34 +00:00
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} else {
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2006-11-26 15:45:17 +00:00
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fd_local = xopen(local_path, O_CREAT | O_TRUNC | O_WRONLY);
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2003-12-20 05:43:34 +00:00
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}
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2002-12-18 02:47:40 +00:00
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}
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2002-12-13 02:43:50 +00:00
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/* Copy the file */
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2006-01-10 06:36:00 +00:00
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if (filesize != -1) {
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if (-1 == bb_copyfd_size(fd_data, fd_local, filesize))
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exit(EXIT_FAILURE);
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} else {
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if (-1 == bb_copyfd_eof(fd_data, fd_local))
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exit(EXIT_FAILURE);
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2002-12-13 08:20:44 +00:00
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}
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2002-12-13 02:43:50 +00:00
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/* close it all down */
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close(fd_data);
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if (ftpcmd(NULL, NULL, control_stream, buf) != 226) {
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2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("ftp error: %s", buf + 4);
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2002-12-13 02:43:50 +00:00
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}
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ftpcmd("QUIT", NULL, control_stream, buf);
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2004-03-15 08:29:22 +00:00
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2006-11-27 16:49:31 +00:00
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return EXIT_SUCCESS;
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2002-12-13 02:43:50 +00:00
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}
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#endif
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2006-05-04 19:52:28 +00:00
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#if !ENABLE_FTPPUT
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2006-10-08 17:54:47 +00:00
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int ftp_send(ftp_host_info_t *server, FILE *control_stream,
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const char *server_path, char *local_path);
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2006-05-04 19:52:28 +00:00
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#else
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2006-10-08 17:54:47 +00:00
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static
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int ftp_send(ftp_host_info_t *server, FILE *control_stream,
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2003-11-03 21:20:18 +00:00
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const char *server_path, char *local_path)
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2002-12-13 02:43:50 +00:00
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{
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struct stat sbuf;
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char buf[512];
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int fd_data;
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int fd_local;
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int response;
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/* Connect to the data socket */
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if (ftpcmd("PASV", NULL, control_stream, buf) != 227) {
|
2003-03-19 09:13:01 +00:00
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bb_error_msg_and_die("PASV error: %s", buf + 4);
|
2002-12-13 02:43:50 +00:00
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}
|
2003-11-03 21:20:18 +00:00
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fd_data = xconnect_ftpdata(server, buf);
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2002-12-13 02:43:50 +00:00
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/* get the local file */
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2006-12-16 23:49:13 +00:00
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fd_local = STDIN_FILENO;
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if (NOT_LONE_DASH(local_path)) {
|
2006-08-03 15:41:12 +00:00
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fd_local = xopen(local_path, O_RDONLY);
|
2003-12-20 05:43:34 +00:00
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fstat(fd_local, &sbuf);
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sprintf(buf, "ALLO %lu", (unsigned long)sbuf.st_size);
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response = ftpcmd(buf, NULL, control_stream, buf);
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switch (response) {
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case 200:
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case 202:
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break;
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default:
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close(fd_local);
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bb_error_msg_and_die("ALLO error: %s", buf + 4);
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break;
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}
|
2002-12-13 02:43:50 +00:00
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}
|
2005-11-08 00:52:31 +00:00
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response = ftpcmd("STOR ", server_path, control_stream, buf);
|
2002-12-13 02:43:50 +00:00
|
|
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switch (response) {
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|
|
case 125:
|
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|
case 150:
|
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|
break;
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|
|
|
default:
|
|
|
|
close(fd_local);
|
2003-03-19 09:13:01 +00:00
|
|
|
bb_error_msg_and_die("STOR error: %s", buf + 4);
|
2002-12-13 02:43:50 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* transfer the file */
|
2003-11-21 22:24:57 +00:00
|
|
|
if (bb_copyfd_eof(fd_local, fd_data) == -1) {
|
2002-12-13 08:20:44 +00:00
|
|
|
exit(EXIT_FAILURE);
|
|
|
|
}
|
2002-12-13 02:43:50 +00:00
|
|
|
|
|
|
|
/* close it all down */
|
|
|
|
close(fd_data);
|
|
|
|
if (ftpcmd(NULL, NULL, control_stream, buf) != 226) {
|
2003-03-19 09:13:01 +00:00
|
|
|
bb_error_msg_and_die("error: %s", buf + 4);
|
2002-12-13 02:43:50 +00:00
|
|
|
}
|
|
|
|
ftpcmd("QUIT", NULL, control_stream, buf);
|
|
|
|
|
2006-11-27 16:49:31 +00:00
|
|
|
return EXIT_SUCCESS;
|
2002-12-13 02:43:50 +00:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2003-12-19 10:37:52 +00:00
|
|
|
#define FTPGETPUT_OPT_CONTINUE 1
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|
|
|
#define FTPGETPUT_OPT_VERBOSE 2
|
|
|
|
#define FTPGETPUT_OPT_USER 4
|
|
|
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#define FTPGETPUT_OPT_PASSWORD 8
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|
|
|
#define FTPGETPUT_OPT_PORT 16
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|
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|
2006-05-26 20:19:22 +00:00
|
|
|
#if ENABLE_FEATURE_FTPGETPUT_LONG_OPTIONS
|
2003-12-19 10:37:52 +00:00
|
|
|
static const struct option ftpgetput_long_options[] = {
|
2006-11-29 11:09:43 +00:00
|
|
|
{ "continue", 1, NULL, 'c' },
|
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|
|
{ "verbose", 0, NULL, 'v' },
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|
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{ "username", 1, NULL, 'u' },
|
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|
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{ "password", 1, NULL, 'p' },
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|
|
{ "port", 1, NULL, 'P' },
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|
|
{ 0, 0, 0, 0 }
|
2003-12-19 10:37:52 +00:00
|
|
|
};
|
2006-05-26 20:19:22 +00:00
|
|
|
#endif
|
2003-12-19 10:37:52 +00:00
|
|
|
|
2002-12-13 02:43:50 +00:00
|
|
|
int ftpgetput_main(int argc, char **argv)
|
|
|
|
{
|
|
|
|
/* content-length of the file */
|
2006-10-03 21:00:06 +00:00
|
|
|
unsigned opt;
|
2003-12-20 03:19:27 +00:00
|
|
|
char *port = "ftp";
|
2002-12-13 02:43:50 +00:00
|
|
|
|
|
|
|
/* socket to ftp server */
|
|
|
|
FILE *control_stream;
|
2003-11-03 21:20:18 +00:00
|
|
|
struct sockaddr_in s_in;
|
2002-12-13 02:43:50 +00:00
|
|
|
|
|
|
|
/* continue a prev transfer (-c) */
|
|
|
|
ftp_host_info_t *server;
|
|
|
|
|
2003-11-03 21:20:18 +00:00
|
|
|
int (*ftp_action)(ftp_host_info_t *, FILE *, const char *, char *) = NULL;
|
2002-12-13 02:43:50 +00:00
|
|
|
|
2003-12-20 03:19:27 +00:00
|
|
|
/* Check to see if the command is ftpget or ftput */
|
2006-10-03 21:00:43 +00:00
|
|
|
if (ENABLE_FTPPUT && (!ENABLE_FTPGET || applet_name[3] == 'p')) {
|
2002-12-13 02:43:50 +00:00
|
|
|
ftp_action = ftp_send;
|
2003-12-20 03:19:27 +00:00
|
|
|
}
|
2006-10-03 21:00:43 +00:00
|
|
|
if (ENABLE_FTPGET && (!ENABLE_FTPPUT || applet_name[3] == 'g')) {
|
2006-06-07 13:31:59 +00:00
|
|
|
ftp_action = ftp_receive;
|
2002-12-13 02:43:50 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Set default values */
|
2003-12-20 03:19:27 +00:00
|
|
|
server = xmalloc(sizeof(ftp_host_info_t));
|
|
|
|
server->user = "anonymous";
|
|
|
|
server->password = "busybox@";
|
2002-12-13 02:43:50 +00:00
|
|
|
verbose_flag = 0;
|
|
|
|
|
2004-03-15 08:29:22 +00:00
|
|
|
/*
|
|
|
|
* Decipher the command line
|
2002-12-13 02:43:50 +00:00
|
|
|
*/
|
2006-11-29 11:09:43 +00:00
|
|
|
#if ENABLE_FEATURE_FTPGETPUT_LONG_OPTIONS
|
|
|
|
applet_long_options = ftpgetput_long_options;
|
|
|
|
#endif
|
2006-10-03 21:00:06 +00:00
|
|
|
opt = getopt32(argc, argv, "cvu:p:P:", &server->user, &server->password, &port);
|
2003-12-20 05:43:34 +00:00
|
|
|
|
|
|
|
/* Process the non-option command line arguments */
|
|
|
|
if (argc - optind != 3) {
|
|
|
|
bb_show_usage();
|
|
|
|
}
|
|
|
|
|
2003-12-19 10:37:52 +00:00
|
|
|
if (opt & FTPGETPUT_OPT_CONTINUE) {
|
|
|
|
do_continue = 1;
|
|
|
|
}
|
|
|
|
if (opt & FTPGETPUT_OPT_VERBOSE) {
|
|
|
|
verbose_flag = 1;
|
2002-12-13 02:43:50 +00:00
|
|
|
}
|
|
|
|
|
2003-11-03 21:20:18 +00:00
|
|
|
/* We want to do exactly _one_ DNS lookup, since some
|
|
|
|
* sites (i.e. ftp.us.debian.org) use round-robin DNS
|
|
|
|
* and we want to connect to only one IP... */
|
|
|
|
server->s_in = &s_in;
|
2003-12-20 03:19:27 +00:00
|
|
|
bb_lookup_host(&s_in, argv[optind]);
|
2004-01-17 05:03:31 +00:00
|
|
|
s_in.sin_port = bb_lookup_port(port, "tcp", 21);
|
2003-11-03 21:20:18 +00:00
|
|
|
if (verbose_flag) {
|
2003-12-20 03:19:27 +00:00
|
|
|
printf("Connecting to %s[%s]:%d\n",
|
|
|
|
argv[optind], inet_ntoa(s_in.sin_addr), ntohs(s_in.sin_port));
|
2003-11-03 21:20:18 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Connect/Setup/Configure the FTP session */
|
2002-12-13 02:43:50 +00:00
|
|
|
control_stream = ftp_login(server);
|
|
|
|
|
2006-11-27 16:49:31 +00:00
|
|
|
return ftp_action(server, control_stream, argv[optind + 1], argv[optind + 2]);
|
2002-12-13 02:43:50 +00:00
|
|
|
}
|