--- /dev/null
+/* vi: set sw=4 ts=4: */
+/*
+ * 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>
+ *
+ * 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
+ *
+ */
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <netinet/in.h>
+#include <netdb.h>
+
+#include "busybox.h"
+
+typedef struct ftp_host_info_s {
+ char *host;
+ char *port;
+ char *user;
+ char *password;
+} ftp_host_info_t;
+
+static char verbose_flag;
+static char do_continue = 0;
+
+/* If chunksize == 0 read till end of file */
+static int copyfd_chunk(int fd1, int fd2, off_t chunksize)
+{
+ size_t nread;
+ size_t nwritten;
+ size_t size;
+ char buffer[BUFSIZ];
+
+ do {
+ if ((chunksize > BUFSIZ) || (chunksize == 0)) {
+ size = BUFSIZ;
+ } else {
+ size = chunksize;
+ }
+
+ nread = safe_read(fd1, buffer, size);
+
+ if (nread < 0) {
+ if (chunksize) {
+ perror_msg_and_die("read error");
+ } else {
+ return(0);
+ }
+ }
+
+ nwritten = full_write(fd2, buffer, nread);
+
+ if (nwritten != nread) {
+ error_msg_and_die("Unable to write all data");
+ }
+
+ if (chunksize) {
+ chunksize -= nwritten;
+ }
+
+ } while (chunksize);
+
+ return 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) {
+ error_msg("cmd %s%s", s1, s2);
+ }
+
+ if (s1) {
+ if (s2) {
+ fprintf(stream, "%s%s\n", s1, s2);
+ } else {
+ fprintf(stream, "%s\n", s1);
+ }
+ }
+
+ do {
+ if (fgets(buf, 510, stream) == NULL) {
+ perror_msg_and_die("fgets()");
+ }
+ } while (! isdigit(buf[0]) || buf[3] != ' ');
+
+ return atoi(buf);
+}
+
+static int xconnect_ftpdata(const char *target_host, 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);
+
+ 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));
+}
+
+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+");
+ if (control_stream == NULL) {
+ perror_msg_and_die("Couldnt open control stream");
+ }
+
+ if (ftpcmd(NULL, NULL, control_stream, buf) != 220) {
+ error_msg_and_die("%s", buf + 4);
+ }
+
+ /* Login to the server */
+ switch (ftpcmd("USER ", server->user, control_stream, buf)) {
+ case 230:
+ break;
+ case 331:
+ if (ftpcmd("PASS ", server->password, control_stream, buf) != 230) {
+ error_msg_and_die("PASS error: %s", buf + 4);
+ }
+ break;
+ default:
+ error_msg_and_die("USER error: %s", buf + 4);
+ }
+
+ ftpcmd("TYPE I", NULL, control_stream, buf);
+
+ return(control_stream);
+}
+
+#ifdef CONFIG_FTPGET
+static int ftp_recieve(FILE *control_stream, const char *host, 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;
+ off_t beg_range = 0;
+
+ filename = 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) {
+ error_msg_and_die("PASV error: %s", buf + 4);
+ }
+ fd_data = xconnect_ftpdata(host, buf);
+
+ if (ftpcmd("SIZE ", server_path, control_stream, buf) == 213) {
+ filesize = atol(buf + 4);
+ }
+
+ /* only make a local file if we know that one exists on the remote server */
+ if (do_continue) {
+ fd_local = xopen(local_file, O_APPEND | O_WRONLY);
+ } else {
+ fd_local = xopen(local_file, O_CREAT | O_TRUNC | O_WRONLY);
+ }
+
+ if (do_continue) {
+ struct stat sbuf;
+ if (fstat(fd_local, &sbuf) < 0) {
+ perror_msg_and_die("fstat()");
+ }
+ if (sbuf.st_size > 0) {
+ beg_range = sbuf.st_size;
+ } else {
+ do_continue = 0;
+ }
+ }
+
+ if (do_continue) {
+ sprintf(buf, "REST %ld", beg_range);
+ if (ftpcmd(buf, NULL, control_stream, buf) != 350) {
+ do_continue = 0;
+ } else {
+ filesize -= beg_range;
+ }
+ }
+
+ if (ftpcmd("RETR ", server_path, control_stream, buf) > 150) {
+ error_msg_and_die("RETR error: %s", buf + 4);
+ }
+
+ /* Copy the file */
+ copyfd_chunk(fd_data, fd_local, filesize);
+
+ /* close it all down */
+ close(fd_data);
+ if (ftpcmd(NULL, NULL, control_stream, buf) != 226) {
+ 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 *local_path, char *server_path)
+{
+ struct stat sbuf;
+ char buf[512];
+ int fd_data;
+ int fd_local;
+ int response;
+
+ /* Connect to the data socket */
+ if (ftpcmd("PASV", NULL, control_stream, buf) != 227) {
+ error_msg_and_die("PASV error: %s", buf + 4);
+ }
+ fd_data = xconnect_ftpdata(host, buf);
+
+ if (ftpcmd("CWD ", server_path, control_stream, buf) != 250) {
+ error_msg_and_die("CWD error: %s", buf + 4);
+ }
+
+ /* get the local file */
+ fd_local = 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);
+ error_msg_and_die("ALLO error: %s", buf + 4);
+ break;
+ }
+
+ response = ftpcmd("STOR ", local_path, control_stream, buf);
+ switch (response) {
+ case 125:
+ case 150:
+ break;
+ default:
+ close(fd_local);
+ error_msg_and_die("STOR error: %s", buf + 4);
+ }
+
+ /* transfer the file */
+ copyfd_chunk(fd_local, fd_data, 0);
+
+ /* close it all down */
+ close(fd_data);
+ if (ftpcmd(NULL, NULL, control_stream, buf) != 226) {
+ error_msg_and_die("error: %s", buf + 4);
+ }
+ ftpcmd("QUIT", NULL, control_stream, buf);
+
+ return(EXIT_SUCCESS);
+}
+#endif
+
+int ftpgetput_main(int argc, char **argv)
+{
+ /* content-length of the file */
+ int option_index = -1;
+ int opt;
+
+ /* socket to ftp server */
+ FILE *control_stream;
+
+ /* continue a prev transfer (-c) */
+ ftp_host_info_t *server;
+
+ int (*ftp_action)(FILE *, const char *, 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 (applet_name[3] == 'p') {
+ ftp_action = ftp_send;
+ }
+#endif
+#ifdef CONFIG_FTPGET
+ if (applet_name[3] == 'g') {
+ ftp_action = ftp_recieve;
+ }
+#endif
+
+ /* Set default values */
+ server = ftp_init();
+ 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:
+ show_usage();
+ }
+ }
+
+ /*
+ * Process the non-option command line arguments
+ */
+ if (argc - optind != 3) {
+ show_usage();
+ }
+
+ /* 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]));
+}
+
+/*
+Local Variables:
+c-file-style: "linux"
+c-basic-offset: 4
+tab-width: 4
+End:
+*/
projects / platform / upstream / busybox.git / commitdiff