/* vi: set sw=4 ts=4: */
/*
- * ftpget
- *
+ * ftpget
+ *
* Mini implementation of FTP to retrieve a remote file.
*
* Copyright (C) 2002 Jeff Angielski, The PTR Group <jeff@theptrgroup.com>
- * Copyright (C) 2002 Glenn McGrath <bug1@optushome.com.au>
+ * Copyright (C) 2002 Glenn McGrath <bug1@iinet.net.au>
*
* Based on wget.c by Chip Rosenthal Covad Communications
* <chip@laserlink.net>
*
- * 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
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
#include "busybox.h"
typedef struct ftp_host_info_s {
- char *host;
- char *port;
char *user;
char *password;
+ struct sockaddr_in *s_in;
} ftp_host_info_t;
-static char verbose_flag;
+static char verbose_flag = 0;
static char do_continue = 0;
-static ftp_host_info_t *ftp_init(void)
-{
- ftp_host_info_t *host;
-
- host = xcalloc(1, sizeof(ftp_host_info_t));
-
- /* Set the default port */
- if (getservbyname("ftp", "tcp")) {
- host->port = "ftp";
- } else {
- host->port = "21";
- }
- host->user = "anonymous";
- host->password = "busybox@";
-
- return(host);
-}
-
static int ftpcmd(const char *s1, const char *s2, FILE *stream, char *buf)
{
if (verbose_flag) {
if (s1) {
if (s2) {
- fprintf(stream, "%s%s\n", s1, s2);
+ fprintf(stream, "%s%s\r\n", s1, s2);
} else {
- fprintf(stream, "%s\n", s1);
+ fprintf(stream, "%s\r\n", s1);
}
}
-
do {
+ char *buf_ptr;
+
if (fgets(buf, 510, stream) == NULL) {
bb_perror_msg_and_die("fgets()");
}
+ buf_ptr = strstr(buf, "\r\n");
+ if (buf_ptr) {
+ *buf_ptr = '\0';
+ }
} while (! isdigit(buf[0]) || buf[3] != ' ');
return atoi(buf);
}
-static int xconnect_ftpdata(const char *target_host, const char *buf)
+static int xconnect_ftpdata(ftp_host_info_t *server, const char *buf)
{
char *buf_ptr;
- char data_port[6];
unsigned short port_num;
buf_ptr = strrchr(buf, ',');
*buf_ptr = '\0';
port_num += atoi(buf_ptr + 1) * 256;
- sprintf(data_port, "%d", port_num);
- return(xconnect(target_host, data_port));
+ server->s_in->sin_port=htons(port_num);
+ return(xconnect(server->s_in));
}
static FILE *ftp_login(ftp_host_info_t *server)
{
FILE *control_stream;
char buf[512];
- int control_fd;
/* Connect to the command socket */
- control_fd = xconnect(server->host, server->port);
- control_stream = fdopen(control_fd, "r+");
+ control_stream = fdopen(xconnect(server->s_in), "r+");
if (control_stream == NULL) {
bb_perror_msg_and_die("Couldnt open control stream");
}
return(control_stream);
}
-#ifdef CONFIG_FTPGET
-static int ftp_recieve(FILE *control_stream, const char *host, const char *local_path, char *server_path)
+#if !ENABLE_FTPGET
+#define ftp_receive 0
+#else
+static int ftp_recieve(ftp_host_info_t *server, FILE *control_stream,
+ const char *local_path, char *server_path)
{
- char *filename;
- char *local_file;
char buf[512];
off_t filesize = 0;
int fd_data;
- int fd_local;
+ int fd_local = -1;
off_t beg_range = 0;
- filename = bb_get_last_path_component(server_path);
- local_file = concat_path_file(local_path, filename);
-
/* Connect to the data socket */
if (ftpcmd("PASV", NULL, control_stream, buf) != 227) {
bb_error_msg_and_die("PASV error: %s", buf + 4);
}
- fd_data = xconnect_ftpdata(host, buf);
+ fd_data = xconnect_ftpdata(server, buf);
if (ftpcmd("SIZE ", server_path, control_stream, buf) == 213) {
- filesize = atol(buf + 4);
+ unsigned long value=filesize;
+ if (safe_strtoul(buf + 4, &value))
+ bb_error_msg_and_die("SIZE error: %s", buf + 4);
+ filesize = value;
+ } else {
+ filesize = -1;
+ do_continue = 0;
+ }
+
+ if ((local_path[0] == '-') && (local_path[1] == '\0')) {
+ fd_local = STDOUT_FILENO;
+ do_continue = 0;
}
if (do_continue) {
struct stat sbuf;
- if (lstat(local_file, &sbuf) < 0) {
+ if (lstat(local_path, &sbuf) < 0) {
bb_perror_msg_and_die("fstat()");
}
if (sbuf.st_size > 0) {
}
if (do_continue) {
- sprintf(buf, "REST %ld", beg_range);
+ sprintf(buf, "REST %ld", (long)beg_range);
if (ftpcmd(buf, NULL, control_stream, buf) != 350) {
do_continue = 0;
} else {
}
/* only make a local file if we know that one exists on the remote server */
- if (do_continue) {
- fd_local = bb_xopen(local_file, O_APPEND | O_WRONLY);
- } else {
- fd_local = bb_xopen(local_file, O_CREAT | O_TRUNC | O_WRONLY);
+ if (fd_local == -1) {
+ if (do_continue) {
+ fd_local = bb_xopen(local_path, O_APPEND | O_WRONLY);
+ } else {
+ fd_local = bb_xopen(local_path, O_CREAT | O_TRUNC | O_WRONLY);
+ }
}
/* Copy the file */
- if (bb_copyfd(fd_data, fd_local, filesize) == -1) {
- exit(EXIT_FAILURE);
+ if (filesize != -1) {
+ if (-1 == bb_copyfd_size(fd_data, fd_local, filesize))
+ exit(EXIT_FAILURE);
+ } else {
+ if (-1 == bb_copyfd_eof(fd_data, fd_local))
+ exit(EXIT_FAILURE);
}
/* close it all down */
bb_error_msg_and_die("ftp error: %s", buf + 4);
}
ftpcmd("QUIT", NULL, control_stream, buf);
-
+
return(EXIT_SUCCESS);
}
#endif
-#ifdef CONFIG_FTPPUT
-static int ftp_send(FILE *control_stream, const char *host, const char *server_path, char *local_path)
+#if !ENABLE_FTPPUT
+#define ftp_send 0
+#else
+static int ftp_send(ftp_host_info_t *server, FILE *control_stream,
+ const char *server_path, char *local_path)
{
struct stat sbuf;
char buf[512];
if (ftpcmd("PASV", NULL, control_stream, buf) != 227) {
bb_error_msg_and_die("PASV error: %s", buf + 4);
}
- fd_data = xconnect_ftpdata(host, buf);
-
- if (ftpcmd("CWD ", server_path, control_stream, buf) != 250) {
- bb_error_msg_and_die("CWD error: %s", buf + 4);
- }
+ fd_data = xconnect_ftpdata(server, buf);
/* get the local file */
- fd_local = bb_xopen(local_path, O_RDONLY);
- fstat(fd_local, &sbuf);
-
- sprintf(buf, "ALLO %lu", sbuf.st_size);
- response = ftpcmd(buf, NULL, control_stream, buf);
- switch (response) {
- case 200:
- case 202:
- break;
- default:
- close(fd_local);
- bb_error_msg_and_die("ALLO error: %s", buf + 4);
- break;
+ if ((local_path[0] == '-') && (local_path[1] == '\0')) {
+ fd_local = STDIN_FILENO;
+ } else {
+ fd_local = bb_xopen(local_path, O_RDONLY);
+ fstat(fd_local, &sbuf);
+
+ sprintf(buf, "ALLO %lu", (unsigned long)sbuf.st_size);
+ response = ftpcmd(buf, NULL, control_stream, buf);
+ switch (response) {
+ case 200:
+ case 202:
+ break;
+ default:
+ close(fd_local);
+ bb_error_msg_and_die("ALLO error: %s", buf + 4);
+ break;
+ }
}
-
- response = ftpcmd("STOR ", local_path, control_stream, buf);
+ response = ftpcmd("STOR ", server_path, control_stream, buf);
switch (response) {
case 125:
case 150:
}
/* transfer the file */
- if (bb_copyfd(fd_local, fd_data, 0) == -1) {
+ if (bb_copyfd_eof(fd_local, fd_data) == -1) {
exit(EXIT_FAILURE);
}
}
#endif
+#define FTPGETPUT_OPT_CONTINUE 1
+#define FTPGETPUT_OPT_VERBOSE 2
+#define FTPGETPUT_OPT_USER 4
+#define FTPGETPUT_OPT_PASSWORD 8
+#define FTPGETPUT_OPT_PORT 16
+
+static const struct option ftpgetput_long_options[] = {
+ {"continue", 1, NULL, 'c'},
+ {"verbose", 0, NULL, 'v'},
+ {"username", 1, NULL, 'u'},
+ {"password", 1, NULL, 'p'},
+ {"port", 1, NULL, 'P'},
+ {0, 0, 0, 0}
+};
+
int ftpgetput_main(int argc, char **argv)
{
/* content-length of the file */
- int option_index = -1;
- int opt;
+ unsigned long opt;
+ char *port = "ftp";
/* socket to ftp server */
FILE *control_stream;
+ struct sockaddr_in s_in;
/* continue a prev transfer (-c) */
ftp_host_info_t *server;
- int (*ftp_action)(FILE *, const char *, const char *, char *) = NULL;
+ int (*ftp_action)(ftp_host_info_t *, FILE *, const char *, char *) = NULL;
- struct option long_options[] = {
- {"username", 1, NULL, 'u'},
- {"password", 1, NULL, 'p'},
- {"port", 1, NULL, 'P'},
- {"continue", 1, NULL, 'c'},
- {"verbose", 0, NULL, 'v'},
- {0, 0, 0, 0}
- };
-
-#ifdef CONFIG_FTPPUT
- if (bb_applet_name[3] == 'p') {
+ /* Check to see if the command is ftpget or ftput */
+ if (ENABLE_FTPPUT && (!ENABLE_FTPGET || bb_applet_name[3] == 'p')) {
ftp_action = ftp_send;
- }
-#endif
-#ifdef CONFIG_FTPGET
- if (bb_applet_name[3] == 'g') {
+ }
+ if (ENABLE_FTPGET && (!ENABLE_FTPPUT || bb_applet_name[3] == 'g')) {
ftp_action = ftp_recieve;
}
-#endif
/* Set default values */
- server = ftp_init();
+ server = xmalloc(sizeof(ftp_host_info_t));
+ server->user = "anonymous";
+ server->password = "busybox@";
verbose_flag = 0;
- /*
- * Decipher the command line
- */
- while ((opt = getopt_long(argc, argv, "u:p:P:cv", long_options, &option_index)) != EOF) {
- switch(opt) {
- case 'c':
- do_continue = 1;
- break;
- case 'u':
- server->user = optarg;
- break;
- case 'p':
- server->password = optarg;
- break;
- case 'P':
- server->port = optarg;
- break;
- case 'v':
- verbose_flag = 1;
- break;
- default:
- bb_show_usage();
- }
- }
-
/*
- * Process the non-option command line arguments
+ * Decipher the command line
*/
+ bb_applet_long_options = ftpgetput_long_options;
+ opt = bb_getopt_ulflags(argc, argv, "cvu:p:P:", &server->user, &server->password, &port);
+
+ /* Process the non-option command line arguments */
if (argc - optind != 3) {
bb_show_usage();
}
+ if (opt & FTPGETPUT_OPT_CONTINUE) {
+ do_continue = 1;
+ }
+ if (opt & FTPGETPUT_OPT_VERBOSE) {
+ verbose_flag = 1;
+ }
+
+ /* 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;
+ bb_lookup_host(&s_in, argv[optind]);
+ s_in.sin_port = bb_lookup_port(port, "tcp", 21);
+ if (verbose_flag) {
+ printf("Connecting to %s[%s]:%d\n",
+ argv[optind], inet_ntoa(s_in.sin_addr), ntohs(s_in.sin_port));
+ }
+
/* Connect/Setup/Configure the FTP session */
- server->host = argv[optind];
control_stream = ftp_login(server);
- return(ftp_action(control_stream, argv[optind], argv[optind + 1], argv[optind + 2]));
+ return(ftp_action(server, control_stream, argv[optind + 1], argv[optind + 2]));
}
/*
projects / oweals / busybox.git / blobdiff