mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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1844 lines
42 KiB
C
1844 lines
42 KiB
C
/* $OpenBSD: sftp.c,v 1.107 2009/02/02 11:15:14 dtucker Exp $ */
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/*
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* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <sys/wait.h>
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#ifdef HAVE_SYS_STATVFS_H
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#include <sys/statvfs.h>
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#endif
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#include <ctype.h>
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#include <errno.h>
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#ifdef HAVE_PATHS_H
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# include <paths.h>
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#endif
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#ifdef USE_LIBEDIT
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#include <histedit.h>
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#else
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typedef void EditLine;
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#endif
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#include <signal.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdarg.h>
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#ifdef HAVE_UTIL_H
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# include <util.h>
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#endif
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#ifdef HAVE_LIBUTIL_H
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# include <libutil.h>
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#endif
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#include "xmalloc.h"
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#include "log.h"
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#include "pathnames.h"
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#include "misc.h"
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#include "sftp.h"
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#include "buffer.h"
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#include "sftp-common.h"
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#include "sftp-client.h"
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/* File to read commands from */
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FILE* infile;
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/* Are we in batchfile mode? */
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int batchmode = 0;
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/* Size of buffer used when copying files */
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size_t copy_buffer_len = 32768;
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/* Number of concurrent outstanding requests */
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size_t num_requests = 64;
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/* PID of ssh transport process */
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static pid_t sshpid = -1;
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/* This is set to 0 if the progressmeter is not desired. */
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int showprogress = 1;
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/* SIGINT received during command processing */
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volatile sig_atomic_t interrupted = 0;
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/* I wish qsort() took a separate ctx for the comparison function...*/
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int sort_flag;
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int remote_glob(struct sftp_conn *, const char *, int,
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int (*)(const char *, int), glob_t *); /* proto for sftp-glob.c */
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extern char *__progname;
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/* Separators for interactive commands */
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#define WHITESPACE " \t\r\n"
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/* ls flags */
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#define LS_LONG_VIEW 0x01 /* Full view ala ls -l */
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#define LS_SHORT_VIEW 0x02 /* Single row view ala ls -1 */
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#define LS_NUMERIC_VIEW 0x04 /* Long view with numeric uid/gid */
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#define LS_NAME_SORT 0x08 /* Sort by name (default) */
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#define LS_TIME_SORT 0x10 /* Sort by mtime */
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#define LS_SIZE_SORT 0x20 /* Sort by file size */
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#define LS_REVERSE_SORT 0x40 /* Reverse sort order */
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#define LS_SHOW_ALL 0x80 /* Don't skip filenames starting with '.' */
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#define VIEW_FLAGS (LS_LONG_VIEW|LS_SHORT_VIEW|LS_NUMERIC_VIEW)
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#define SORT_FLAGS (LS_NAME_SORT|LS_TIME_SORT|LS_SIZE_SORT)
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/* Commands for interactive mode */
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#define I_CHDIR 1
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#define I_CHGRP 2
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#define I_CHMOD 3
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#define I_CHOWN 4
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#define I_DF 24
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#define I_GET 5
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#define I_HELP 6
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#define I_LCHDIR 7
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#define I_LLS 8
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#define I_LMKDIR 9
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#define I_LPWD 10
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#define I_LS 11
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#define I_LUMASK 12
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#define I_MKDIR 13
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#define I_PUT 14
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#define I_PWD 15
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#define I_QUIT 16
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#define I_RENAME 17
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#define I_RM 18
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#define I_RMDIR 19
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#define I_SHELL 20
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#define I_SYMLINK 21
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#define I_VERSION 22
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#define I_PROGRESS 23
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struct CMD {
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const char *c;
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const int n;
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};
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static const struct CMD cmds[] = {
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{ "bye", I_QUIT },
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{ "cd", I_CHDIR },
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{ "chdir", I_CHDIR },
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{ "chgrp", I_CHGRP },
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{ "chmod", I_CHMOD },
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{ "chown", I_CHOWN },
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{ "df", I_DF },
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{ "dir", I_LS },
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{ "exit", I_QUIT },
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{ "get", I_GET },
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{ "mget", I_GET },
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{ "help", I_HELP },
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{ "lcd", I_LCHDIR },
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{ "lchdir", I_LCHDIR },
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{ "lls", I_LLS },
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{ "lmkdir", I_LMKDIR },
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{ "ln", I_SYMLINK },
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{ "lpwd", I_LPWD },
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{ "ls", I_LS },
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{ "lumask", I_LUMASK },
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{ "mkdir", I_MKDIR },
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{ "progress", I_PROGRESS },
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{ "put", I_PUT },
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{ "mput", I_PUT },
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{ "pwd", I_PWD },
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{ "quit", I_QUIT },
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{ "rename", I_RENAME },
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{ "rm", I_RM },
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{ "rmdir", I_RMDIR },
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{ "symlink", I_SYMLINK },
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{ "version", I_VERSION },
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{ "!", I_SHELL },
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{ "?", I_HELP },
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{ NULL, -1}
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};
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int interactive_loop(int fd_in, int fd_out, char *file1, char *file2);
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/* ARGSUSED */
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static void
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killchild(int signo)
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{
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if (sshpid > 1) {
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kill(sshpid, SIGTERM);
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waitpid(sshpid, NULL, 0);
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}
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_exit(1);
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}
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/* ARGSUSED */
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static void
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cmd_interrupt(int signo)
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{
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const char msg[] = "\rInterrupt \n";
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int olderrno = errno;
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write(STDERR_FILENO, msg, sizeof(msg) - 1);
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interrupted = 1;
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errno = olderrno;
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}
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static void
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help(void)
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{
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printf("Available commands:\n"
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"bye Quit sftp\n"
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"cd path Change remote directory to 'path'\n"
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"chgrp grp path Change group of file 'path' to 'grp'\n"
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"chmod mode path Change permissions of file 'path' to 'mode'\n"
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"chown own path Change owner of file 'path' to 'own'\n"
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"df [-hi] [path] Display statistics for current directory or\n"
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" filesystem containing 'path'\n"
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"exit Quit sftp\n"
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"get [-P] remote-path [local-path] Download file\n"
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"help Display this help text\n"
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"lcd path Change local directory to 'path'\n"
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"lls [ls-options [path]] Display local directory listing\n"
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"lmkdir path Create local directory\n"
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"ln oldpath newpath Symlink remote file\n"
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"lpwd Print local working directory\n"
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"ls [-1aflnrSt] [path] Display remote directory listing\n"
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"lumask umask Set local umask to 'umask'\n"
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"mkdir path Create remote directory\n"
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"progress Toggle display of progress meter\n"
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"put [-P] local-path [remote-path] Upload file\n"
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"pwd Display remote working directory\n"
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"quit Quit sftp\n"
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"rename oldpath newpath Rename remote file\n"
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"rm path Delete remote file\n"
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"rmdir path Remove remote directory\n"
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"symlink oldpath newpath Symlink remote file\n"
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"version Show SFTP version\n"
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"!command Execute 'command' in local shell\n"
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"! Escape to local shell\n"
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"? Synonym for help\n");
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}
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static void
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local_do_shell(const char *args)
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{
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int status;
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char *shell;
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pid_t pid;
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if (!*args)
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args = NULL;
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if ((shell = getenv("SHELL")) == NULL)
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shell = _PATH_BSHELL;
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if ((pid = fork()) == -1)
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fatal("Couldn't fork: %s", strerror(errno));
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if (pid == 0) {
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/* XXX: child has pipe fds to ssh subproc open - issue? */
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if (args) {
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debug3("Executing %s -c \"%s\"", shell, args);
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execl(shell, shell, "-c", args, (char *)NULL);
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} else {
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debug3("Executing %s", shell);
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execl(shell, shell, (char *)NULL);
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}
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fprintf(stderr, "Couldn't execute \"%s\": %s\n", shell,
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strerror(errno));
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_exit(1);
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}
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while (waitpid(pid, &status, 0) == -1)
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if (errno != EINTR)
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fatal("Couldn't wait for child: %s", strerror(errno));
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if (!WIFEXITED(status))
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error("Shell exited abnormally");
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else if (WEXITSTATUS(status))
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error("Shell exited with status %d", WEXITSTATUS(status));
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}
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static void
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local_do_ls(const char *args)
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{
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if (!args || !*args)
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local_do_shell(_PATH_LS);
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else {
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int len = strlen(_PATH_LS " ") + strlen(args) + 1;
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char *buf = xmalloc(len);
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/* XXX: quoting - rip quoting code from ftp? */
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snprintf(buf, len, _PATH_LS " %s", args);
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local_do_shell(buf);
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xfree(buf);
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}
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}
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/* Strip one path (usually the pwd) from the start of another */
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static char *
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path_strip(char *path, char *strip)
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{
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size_t len;
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if (strip == NULL)
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return (xstrdup(path));
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len = strlen(strip);
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if (strncmp(path, strip, len) == 0) {
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if (strip[len - 1] != '/' && path[len] == '/')
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len++;
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return (xstrdup(path + len));
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}
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return (xstrdup(path));
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}
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static char *
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path_append(char *p1, char *p2)
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{
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char *ret;
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size_t len = strlen(p1) + strlen(p2) + 2;
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ret = xmalloc(len);
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strlcpy(ret, p1, len);
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if (p1[0] != '\0' && p1[strlen(p1) - 1] != '/')
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strlcat(ret, "/", len);
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strlcat(ret, p2, len);
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return(ret);
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}
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static char *
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make_absolute(char *p, char *pwd)
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{
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char *abs_str;
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/* Derelativise */
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if (p && p[0] != '/') {
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abs_str = path_append(pwd, p);
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xfree(p);
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return(abs_str);
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} else
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return(p);
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}
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static int
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infer_path(const char *p, char **ifp)
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{
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char *cp;
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cp = strrchr(p, '/');
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if (cp == NULL) {
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*ifp = xstrdup(p);
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return(0);
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}
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if (!cp[1]) {
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error("Invalid path");
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return(-1);
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}
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*ifp = xstrdup(cp + 1);
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return(0);
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}
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static int
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parse_getput_flags(const char *cmd, char **argv, int argc, int *pflag)
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{
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extern int opterr, optind, optopt, optreset;
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int ch;
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optind = optreset = 1;
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opterr = 0;
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*pflag = 0;
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while ((ch = getopt(argc, argv, "Pp")) != -1) {
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switch (ch) {
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case 'p':
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case 'P':
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*pflag = 1;
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break;
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default:
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error("%s: Invalid flag -%c", cmd, optopt);
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return -1;
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}
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}
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return optind;
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}
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static int
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parse_ls_flags(char **argv, int argc, int *lflag)
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{
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extern int opterr, optind, optopt, optreset;
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int ch;
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optind = optreset = 1;
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opterr = 0;
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*lflag = LS_NAME_SORT;
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while ((ch = getopt(argc, argv, "1Saflnrt")) != -1) {
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switch (ch) {
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case '1':
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*lflag &= ~VIEW_FLAGS;
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*lflag |= LS_SHORT_VIEW;
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break;
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case 'S':
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*lflag &= ~SORT_FLAGS;
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*lflag |= LS_SIZE_SORT;
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break;
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case 'a':
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*lflag |= LS_SHOW_ALL;
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break;
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case 'f':
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*lflag &= ~SORT_FLAGS;
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break;
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case 'l':
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*lflag &= ~VIEW_FLAGS;
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*lflag |= LS_LONG_VIEW;
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break;
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case 'n':
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*lflag &= ~VIEW_FLAGS;
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*lflag |= LS_NUMERIC_VIEW|LS_LONG_VIEW;
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break;
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case 'r':
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*lflag |= LS_REVERSE_SORT;
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break;
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case 't':
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*lflag &= ~SORT_FLAGS;
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*lflag |= LS_TIME_SORT;
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break;
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default:
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error("ls: Invalid flag -%c", optopt);
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return -1;
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}
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}
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return optind;
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}
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static int
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parse_df_flags(const char *cmd, char **argv, int argc, int *hflag, int *iflag)
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{
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extern int opterr, optind, optopt, optreset;
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int ch;
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optind = optreset = 1;
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opterr = 0;
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|
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*hflag = *iflag = 0;
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while ((ch = getopt(argc, argv, "hi")) != -1) {
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switch (ch) {
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case 'h':
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*hflag = 1;
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break;
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case 'i':
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*iflag = 1;
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break;
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default:
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error("%s: Invalid flag -%c", cmd, optopt);
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return -1;
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}
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}
|
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|
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return optind;
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}
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|
|
static int
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is_dir(char *path)
|
|
{
|
|
struct stat sb;
|
|
|
|
/* XXX: report errors? */
|
|
if (stat(path, &sb) == -1)
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return(0);
|
|
|
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return(S_ISDIR(sb.st_mode));
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}
|
|
|
|
static int
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remote_is_dir(struct sftp_conn *conn, char *path)
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|
{
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|
Attrib *a;
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|
|
|
/* XXX: report errors? */
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if ((a = do_stat(conn, path, 1)) == NULL)
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return(0);
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if (!(a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS))
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return(0);
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|
return(S_ISDIR(a->perm));
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}
|
|
|
|
static int
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process_get(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
|
|
{
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|
char *abs_src = NULL;
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|
char *abs_dst = NULL;
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|
char *tmp;
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|
glob_t g;
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|
int err = 0;
|
|
int i;
|
|
|
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abs_src = xstrdup(src);
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abs_src = make_absolute(abs_src, pwd);
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|
|
memset(&g, 0, sizeof(g));
|
|
debug3("Looking up %s", abs_src);
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|
if (remote_glob(conn, abs_src, 0, NULL, &g)) {
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error("File \"%s\" not found.", abs_src);
|
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err = -1;
|
|
goto out;
|
|
}
|
|
|
|
/* If multiple matches, dst must be a directory or unspecified */
|
|
if (g.gl_matchc > 1 && dst && !is_dir(dst)) {
|
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error("Multiple files match, but \"%s\" is not a directory",
|
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dst);
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|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
if (infer_path(g.gl_pathv[i], &tmp)) {
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (g.gl_matchc == 1 && dst) {
|
|
/* If directory specified, append filename */
|
|
xfree(tmp);
|
|
if (is_dir(dst)) {
|
|
if (infer_path(g.gl_pathv[0], &tmp)) {
|
|
err = 1;
|
|
goto out;
|
|
}
|
|
abs_dst = path_append(dst, tmp);
|
|
xfree(tmp);
|
|
} else
|
|
abs_dst = xstrdup(dst);
|
|
} else if (dst) {
|
|
abs_dst = path_append(dst, tmp);
|
|
xfree(tmp);
|
|
} else
|
|
abs_dst = tmp;
|
|
|
|
printf("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
|
|
if (do_download(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
|
|
err = -1;
|
|
xfree(abs_dst);
|
|
abs_dst = NULL;
|
|
}
|
|
|
|
out:
|
|
xfree(abs_src);
|
|
globfree(&g);
|
|
return(err);
|
|
}
|
|
|
|
static int
|
|
process_put(struct sftp_conn *conn, char *src, char *dst, char *pwd, int pflag)
|
|
{
|
|
char *tmp_dst = NULL;
|
|
char *abs_dst = NULL;
|
|
char *tmp;
|
|
glob_t g;
|
|
int err = 0;
|
|
int i;
|
|
struct stat sb;
|
|
|
|
if (dst) {
|
|
tmp_dst = xstrdup(dst);
|
|
tmp_dst = make_absolute(tmp_dst, pwd);
|
|
}
|
|
|
|
memset(&g, 0, sizeof(g));
|
|
debug3("Looking up %s", src);
|
|
if (glob(src, GLOB_NOCHECK, NULL, &g)) {
|
|
error("File \"%s\" not found.", src);
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
/* If multiple matches, dst may be directory or unspecified */
|
|
if (g.gl_matchc > 1 && tmp_dst && !remote_is_dir(conn, tmp_dst)) {
|
|
error("Multiple files match, but \"%s\" is not a directory",
|
|
tmp_dst);
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
if (stat(g.gl_pathv[i], &sb) == -1) {
|
|
err = -1;
|
|
error("stat %s: %s", g.gl_pathv[i], strerror(errno));
|
|
continue;
|
|
}
|
|
|
|
if (!S_ISREG(sb.st_mode)) {
|
|
error("skipping non-regular file %s",
|
|
g.gl_pathv[i]);
|
|
continue;
|
|
}
|
|
if (infer_path(g.gl_pathv[i], &tmp)) {
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (g.gl_matchc == 1 && tmp_dst) {
|
|
/* If directory specified, append filename */
|
|
if (remote_is_dir(conn, tmp_dst)) {
|
|
if (infer_path(g.gl_pathv[0], &tmp)) {
|
|
err = 1;
|
|
goto out;
|
|
}
|
|
abs_dst = path_append(tmp_dst, tmp);
|
|
xfree(tmp);
|
|
} else
|
|
abs_dst = xstrdup(tmp_dst);
|
|
|
|
} else if (tmp_dst) {
|
|
abs_dst = path_append(tmp_dst, tmp);
|
|
xfree(tmp);
|
|
} else
|
|
abs_dst = make_absolute(tmp, pwd);
|
|
|
|
printf("Uploading %s to %s\n", g.gl_pathv[i], abs_dst);
|
|
if (do_upload(conn, g.gl_pathv[i], abs_dst, pflag) == -1)
|
|
err = -1;
|
|
}
|
|
|
|
out:
|
|
if (abs_dst)
|
|
xfree(abs_dst);
|
|
if (tmp_dst)
|
|
xfree(tmp_dst);
|
|
globfree(&g);
|
|
return(err);
|
|
}
|
|
|
|
static int
|
|
sdirent_comp(const void *aa, const void *bb)
|
|
{
|
|
SFTP_DIRENT *a = *(SFTP_DIRENT **)aa;
|
|
SFTP_DIRENT *b = *(SFTP_DIRENT **)bb;
|
|
int rmul = sort_flag & LS_REVERSE_SORT ? -1 : 1;
|
|
|
|
#define NCMP(a,b) (a == b ? 0 : (a < b ? 1 : -1))
|
|
if (sort_flag & LS_NAME_SORT)
|
|
return (rmul * strcmp(a->filename, b->filename));
|
|
else if (sort_flag & LS_TIME_SORT)
|
|
return (rmul * NCMP(a->a.mtime, b->a.mtime));
|
|
else if (sort_flag & LS_SIZE_SORT)
|
|
return (rmul * NCMP(a->a.size, b->a.size));
|
|
|
|
fatal("Unknown ls sort type");
|
|
}
|
|
|
|
/* sftp ls.1 replacement for directories */
|
|
static int
|
|
do_ls_dir(struct sftp_conn *conn, char *path, char *strip_path, int lflag)
|
|
{
|
|
int n;
|
|
u_int c = 1, colspace = 0, columns = 1;
|
|
SFTP_DIRENT **d;
|
|
|
|
if ((n = do_readdir(conn, path, &d)) != 0)
|
|
return (n);
|
|
|
|
if (!(lflag & LS_SHORT_VIEW)) {
|
|
u_int m = 0, width = 80;
|
|
struct winsize ws;
|
|
char *tmp;
|
|
|
|
/* Count entries for sort and find longest filename */
|
|
for (n = 0; d[n] != NULL; n++) {
|
|
if (d[n]->filename[0] != '.' || (lflag & LS_SHOW_ALL))
|
|
m = MAX(m, strlen(d[n]->filename));
|
|
}
|
|
|
|
/* Add any subpath that also needs to be counted */
|
|
tmp = path_strip(path, strip_path);
|
|
m += strlen(tmp);
|
|
xfree(tmp);
|
|
|
|
if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
|
|
width = ws.ws_col;
|
|
|
|
columns = width / (m + 2);
|
|
columns = MAX(columns, 1);
|
|
colspace = width / columns;
|
|
colspace = MIN(colspace, width);
|
|
}
|
|
|
|
if (lflag & SORT_FLAGS) {
|
|
for (n = 0; d[n] != NULL; n++)
|
|
; /* count entries */
|
|
sort_flag = lflag & (SORT_FLAGS|LS_REVERSE_SORT);
|
|
qsort(d, n, sizeof(*d), sdirent_comp);
|
|
}
|
|
|
|
for (n = 0; d[n] != NULL && !interrupted; n++) {
|
|
char *tmp, *fname;
|
|
|
|
if (d[n]->filename[0] == '.' && !(lflag & LS_SHOW_ALL))
|
|
continue;
|
|
|
|
tmp = path_append(path, d[n]->filename);
|
|
fname = path_strip(tmp, strip_path);
|
|
xfree(tmp);
|
|
|
|
if (lflag & LS_LONG_VIEW) {
|
|
if (lflag & LS_NUMERIC_VIEW) {
|
|
char *lname;
|
|
struct stat sb;
|
|
|
|
memset(&sb, 0, sizeof(sb));
|
|
attrib_to_stat(&d[n]->a, &sb);
|
|
lname = ls_file(fname, &sb, 1);
|
|
printf("%s\n", lname);
|
|
xfree(lname);
|
|
} else
|
|
printf("%s\n", d[n]->longname);
|
|
} else {
|
|
printf("%-*s", colspace, fname);
|
|
if (c >= columns) {
|
|
printf("\n");
|
|
c = 1;
|
|
} else
|
|
c++;
|
|
}
|
|
|
|
xfree(fname);
|
|
}
|
|
|
|
if (!(lflag & LS_LONG_VIEW) && (c != 1))
|
|
printf("\n");
|
|
|
|
free_sftp_dirents(d);
|
|
return (0);
|
|
}
|
|
|
|
/* sftp ls.1 replacement which handles path globs */
|
|
static int
|
|
do_globbed_ls(struct sftp_conn *conn, char *path, char *strip_path,
|
|
int lflag)
|
|
{
|
|
glob_t g;
|
|
u_int i, c = 1, colspace = 0, columns = 1;
|
|
Attrib *a = NULL;
|
|
|
|
memset(&g, 0, sizeof(g));
|
|
|
|
if (remote_glob(conn, path, GLOB_MARK|GLOB_NOCHECK|GLOB_BRACE,
|
|
NULL, &g) || (g.gl_pathc && !g.gl_matchc)) {
|
|
if (g.gl_pathc)
|
|
globfree(&g);
|
|
error("Can't ls: \"%s\" not found", path);
|
|
return (-1);
|
|
}
|
|
|
|
if (interrupted)
|
|
goto out;
|
|
|
|
/*
|
|
* If the glob returns a single match and it is a directory,
|
|
* then just list its contents.
|
|
*/
|
|
if (g.gl_matchc == 1) {
|
|
if ((a = do_lstat(conn, g.gl_pathv[0], 1)) == NULL) {
|
|
globfree(&g);
|
|
return (-1);
|
|
}
|
|
if ((a->flags & SSH2_FILEXFER_ATTR_PERMISSIONS) &&
|
|
S_ISDIR(a->perm)) {
|
|
int err;
|
|
|
|
err = do_ls_dir(conn, g.gl_pathv[0], strip_path, lflag);
|
|
globfree(&g);
|
|
return (err);
|
|
}
|
|
}
|
|
|
|
if (!(lflag & LS_SHORT_VIEW)) {
|
|
u_int m = 0, width = 80;
|
|
struct winsize ws;
|
|
|
|
/* Count entries for sort and find longest filename */
|
|
for (i = 0; g.gl_pathv[i]; i++)
|
|
m = MAX(m, strlen(g.gl_pathv[i]));
|
|
|
|
if (ioctl(fileno(stdin), TIOCGWINSZ, &ws) != -1)
|
|
width = ws.ws_col;
|
|
|
|
columns = width / (m + 2);
|
|
columns = MAX(columns, 1);
|
|
colspace = width / columns;
|
|
}
|
|
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++, a = NULL) {
|
|
char *fname;
|
|
|
|
fname = path_strip(g.gl_pathv[i], strip_path);
|
|
|
|
if (lflag & LS_LONG_VIEW) {
|
|
char *lname;
|
|
struct stat sb;
|
|
|
|
/*
|
|
* XXX: this is slow - 1 roundtrip per path
|
|
* A solution to this is to fork glob() and
|
|
* build a sftp specific version which keeps the
|
|
* attribs (which currently get thrown away)
|
|
* that the server returns as well as the filenames.
|
|
*/
|
|
memset(&sb, 0, sizeof(sb));
|
|
if (a == NULL)
|
|
a = do_lstat(conn, g.gl_pathv[i], 1);
|
|
if (a != NULL)
|
|
attrib_to_stat(a, &sb);
|
|
lname = ls_file(fname, &sb, 1);
|
|
printf("%s\n", lname);
|
|
xfree(lname);
|
|
} else {
|
|
printf("%-*s", colspace, fname);
|
|
if (c >= columns) {
|
|
printf("\n");
|
|
c = 1;
|
|
} else
|
|
c++;
|
|
}
|
|
xfree(fname);
|
|
}
|
|
|
|
if (!(lflag & LS_LONG_VIEW) && (c != 1))
|
|
printf("\n");
|
|
|
|
out:
|
|
if (g.gl_pathc)
|
|
globfree(&g);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
do_df(struct sftp_conn *conn, char *path, int hflag, int iflag)
|
|
{
|
|
struct sftp_statvfs st;
|
|
char s_used[FMT_SCALED_STRSIZE];
|
|
char s_avail[FMT_SCALED_STRSIZE];
|
|
char s_root[FMT_SCALED_STRSIZE];
|
|
char s_total[FMT_SCALED_STRSIZE];
|
|
|
|
if (do_statvfs(conn, path, &st, 1) == -1)
|
|
return -1;
|
|
if (iflag) {
|
|
printf(" Inodes Used Avail "
|
|
"(root) %%Capacity\n");
|
|
printf("%11llu %11llu %11llu %11llu %3llu%%\n",
|
|
(unsigned long long)st.f_files,
|
|
(unsigned long long)(st.f_files - st.f_ffree),
|
|
(unsigned long long)st.f_favail,
|
|
(unsigned long long)st.f_ffree,
|
|
(unsigned long long)(100 * (st.f_files - st.f_ffree) /
|
|
st.f_files));
|
|
} else if (hflag) {
|
|
strlcpy(s_used, "error", sizeof(s_used));
|
|
strlcpy(s_avail, "error", sizeof(s_avail));
|
|
strlcpy(s_root, "error", sizeof(s_root));
|
|
strlcpy(s_total, "error", sizeof(s_total));
|
|
fmt_scaled((st.f_blocks - st.f_bfree) * st.f_frsize, s_used);
|
|
fmt_scaled(st.f_bavail * st.f_frsize, s_avail);
|
|
fmt_scaled(st.f_bfree * st.f_frsize, s_root);
|
|
fmt_scaled(st.f_blocks * st.f_frsize, s_total);
|
|
printf(" Size Used Avail (root) %%Capacity\n");
|
|
printf("%7sB %7sB %7sB %7sB %3llu%%\n",
|
|
s_total, s_used, s_avail, s_root,
|
|
(unsigned long long)(100 * (st.f_blocks - st.f_bfree) /
|
|
st.f_blocks));
|
|
} else {
|
|
printf(" Size Used Avail "
|
|
"(root) %%Capacity\n");
|
|
printf("%12llu %12llu %12llu %12llu %3llu%%\n",
|
|
(unsigned long long)(st.f_frsize * st.f_blocks / 1024),
|
|
(unsigned long long)(st.f_frsize *
|
|
(st.f_blocks - st.f_bfree) / 1024),
|
|
(unsigned long long)(st.f_frsize * st.f_bavail / 1024),
|
|
(unsigned long long)(st.f_frsize * st.f_bfree / 1024),
|
|
(unsigned long long)(100 * (st.f_blocks - st.f_bfree) /
|
|
st.f_blocks));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Undo escaping of glob sequences in place. Used to undo extra escaping
|
|
* applied in makeargv() when the string is destined for a function that
|
|
* does not glob it.
|
|
*/
|
|
static void
|
|
undo_glob_escape(char *s)
|
|
{
|
|
size_t i, j;
|
|
|
|
for (i = j = 0;;) {
|
|
if (s[i] == '\0') {
|
|
s[j] = '\0';
|
|
return;
|
|
}
|
|
if (s[i] != '\\') {
|
|
s[j++] = s[i++];
|
|
continue;
|
|
}
|
|
/* s[i] == '\\' */
|
|
++i;
|
|
switch (s[i]) {
|
|
case '?':
|
|
case '[':
|
|
case '*':
|
|
case '\\':
|
|
s[j++] = s[i++];
|
|
break;
|
|
case '\0':
|
|
s[j++] = '\\';
|
|
s[j] = '\0';
|
|
return;
|
|
default:
|
|
s[j++] = '\\';
|
|
s[j++] = s[i++];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Split a string into an argument vector using sh(1)-style quoting,
|
|
* comment and escaping rules, but with some tweaks to handle glob(3)
|
|
* wildcards.
|
|
* Returns NULL on error or a NULL-terminated array of arguments.
|
|
*/
|
|
#define MAXARGS 128
|
|
#define MAXARGLEN 8192
|
|
static char **
|
|
makeargv(const char *arg, int *argcp)
|
|
{
|
|
int argc, quot;
|
|
size_t i, j;
|
|
static char argvs[MAXARGLEN];
|
|
static char *argv[MAXARGS + 1];
|
|
enum { MA_START, MA_SQUOTE, MA_DQUOTE, MA_UNQUOTED } state, q;
|
|
|
|
*argcp = argc = 0;
|
|
if (strlen(arg) > sizeof(argvs) - 1) {
|
|
args_too_longs:
|
|
error("string too long");
|
|
return NULL;
|
|
}
|
|
state = MA_START;
|
|
i = j = 0;
|
|
for (;;) {
|
|
if (isspace(arg[i])) {
|
|
if (state == MA_UNQUOTED) {
|
|
/* Terminate current argument */
|
|
argvs[j++] = '\0';
|
|
argc++;
|
|
state = MA_START;
|
|
} else if (state != MA_START)
|
|
argvs[j++] = arg[i];
|
|
} else if (arg[i] == '"' || arg[i] == '\'') {
|
|
q = arg[i] == '"' ? MA_DQUOTE : MA_SQUOTE;
|
|
if (state == MA_START) {
|
|
argv[argc] = argvs + j;
|
|
state = q;
|
|
} else if (state == MA_UNQUOTED)
|
|
state = q;
|
|
else if (state == q)
|
|
state = MA_UNQUOTED;
|
|
else
|
|
argvs[j++] = arg[i];
|
|
} else if (arg[i] == '\\') {
|
|
if (state == MA_SQUOTE || state == MA_DQUOTE) {
|
|
quot = state == MA_SQUOTE ? '\'' : '"';
|
|
/* Unescape quote we are in */
|
|
/* XXX support \n and friends? */
|
|
if (arg[i + 1] == quot) {
|
|
i++;
|
|
argvs[j++] = arg[i];
|
|
} else if (arg[i + 1] == '?' ||
|
|
arg[i + 1] == '[' || arg[i + 1] == '*') {
|
|
/*
|
|
* Special case for sftp: append
|
|
* double-escaped glob sequence -
|
|
* glob will undo one level of
|
|
* escaping. NB. string can grow here.
|
|
*/
|
|
if (j >= sizeof(argvs) - 5)
|
|
goto args_too_longs;
|
|
argvs[j++] = '\\';
|
|
argvs[j++] = arg[i++];
|
|
argvs[j++] = '\\';
|
|
argvs[j++] = arg[i];
|
|
} else {
|
|
argvs[j++] = arg[i++];
|
|
argvs[j++] = arg[i];
|
|
}
|
|
} else {
|
|
if (state == MA_START) {
|
|
argv[argc] = argvs + j;
|
|
state = MA_UNQUOTED;
|
|
}
|
|
if (arg[i + 1] == '?' || arg[i + 1] == '[' ||
|
|
arg[i + 1] == '*' || arg[i + 1] == '\\') {
|
|
/*
|
|
* Special case for sftp: append
|
|
* escaped glob sequence -
|
|
* glob will undo one level of
|
|
* escaping.
|
|
*/
|
|
argvs[j++] = arg[i++];
|
|
argvs[j++] = arg[i];
|
|
} else {
|
|
/* Unescape everything */
|
|
/* XXX support \n and friends? */
|
|
i++;
|
|
argvs[j++] = arg[i];
|
|
}
|
|
}
|
|
} else if (arg[i] == '#') {
|
|
if (state == MA_SQUOTE || state == MA_DQUOTE)
|
|
argvs[j++] = arg[i];
|
|
else
|
|
goto string_done;
|
|
} else if (arg[i] == '\0') {
|
|
if (state == MA_SQUOTE || state == MA_DQUOTE) {
|
|
error("Unterminated quoted argument");
|
|
return NULL;
|
|
}
|
|
string_done:
|
|
if (state == MA_UNQUOTED) {
|
|
argvs[j++] = '\0';
|
|
argc++;
|
|
}
|
|
break;
|
|
} else {
|
|
if (state == MA_START) {
|
|
argv[argc] = argvs + j;
|
|
state = MA_UNQUOTED;
|
|
}
|
|
if ((state == MA_SQUOTE || state == MA_DQUOTE) &&
|
|
(arg[i] == '?' || arg[i] == '[' || arg[i] == '*')) {
|
|
/*
|
|
* Special case for sftp: escape quoted
|
|
* glob(3) wildcards. NB. string can grow
|
|
* here.
|
|
*/
|
|
if (j >= sizeof(argvs) - 3)
|
|
goto args_too_longs;
|
|
argvs[j++] = '\\';
|
|
argvs[j++] = arg[i];
|
|
} else
|
|
argvs[j++] = arg[i];
|
|
}
|
|
i++;
|
|
}
|
|
*argcp = argc;
|
|
return argv;
|
|
}
|
|
|
|
static int
|
|
parse_args(const char **cpp, int *pflag, int *lflag, int *iflag, int *hflag,
|
|
unsigned long *n_arg, char **path1, char **path2)
|
|
{
|
|
const char *cmd, *cp = *cpp;
|
|
char *cp2, **argv;
|
|
int base = 0;
|
|
long l;
|
|
int i, cmdnum, optidx, argc;
|
|
|
|
/* Skip leading whitespace */
|
|
cp = cp + strspn(cp, WHITESPACE);
|
|
|
|
/* Ignore blank lines and lines which begin with comment '#' char */
|
|
if (*cp == '\0' || *cp == '#')
|
|
return (0);
|
|
|
|
/* Check for leading '-' (disable error processing) */
|
|
*iflag = 0;
|
|
if (*cp == '-') {
|
|
*iflag = 1;
|
|
cp++;
|
|
}
|
|
|
|
if ((argv = makeargv(cp, &argc)) == NULL)
|
|
return -1;
|
|
|
|
/* Figure out which command we have */
|
|
for (i = 0; cmds[i].c != NULL; i++) {
|
|
if (strcasecmp(cmds[i].c, argv[0]) == 0)
|
|
break;
|
|
}
|
|
cmdnum = cmds[i].n;
|
|
cmd = cmds[i].c;
|
|
|
|
/* Special case */
|
|
if (*cp == '!') {
|
|
cp++;
|
|
cmdnum = I_SHELL;
|
|
} else if (cmdnum == -1) {
|
|
error("Invalid command.");
|
|
return -1;
|
|
}
|
|
|
|
/* Get arguments and parse flags */
|
|
*lflag = *pflag = *hflag = *n_arg = 0;
|
|
*path1 = *path2 = NULL;
|
|
optidx = 1;
|
|
switch (cmdnum) {
|
|
case I_GET:
|
|
case I_PUT:
|
|
if ((optidx = parse_getput_flags(cmd, argv, argc, pflag)) == -1)
|
|
return -1;
|
|
/* Get first pathname (mandatory) */
|
|
if (argc - optidx < 1) {
|
|
error("You must specify at least one path after a "
|
|
"%s command.", cmd);
|
|
return -1;
|
|
}
|
|
*path1 = xstrdup(argv[optidx]);
|
|
/* Get second pathname (optional) */
|
|
if (argc - optidx > 1) {
|
|
*path2 = xstrdup(argv[optidx + 1]);
|
|
/* Destination is not globbed */
|
|
undo_glob_escape(*path2);
|
|
}
|
|
break;
|
|
case I_RENAME:
|
|
case I_SYMLINK:
|
|
if (argc - optidx < 2) {
|
|
error("You must specify two paths after a %s "
|
|
"command.", cmd);
|
|
return -1;
|
|
}
|
|
*path1 = xstrdup(argv[optidx]);
|
|
*path2 = xstrdup(argv[optidx + 1]);
|
|
/* Paths are not globbed */
|
|
undo_glob_escape(*path1);
|
|
undo_glob_escape(*path2);
|
|
break;
|
|
case I_RM:
|
|
case I_MKDIR:
|
|
case I_RMDIR:
|
|
case I_CHDIR:
|
|
case I_LCHDIR:
|
|
case I_LMKDIR:
|
|
/* Get pathname (mandatory) */
|
|
if (argc - optidx < 1) {
|
|
error("You must specify a path after a %s command.",
|
|
cmd);
|
|
return -1;
|
|
}
|
|
*path1 = xstrdup(argv[optidx]);
|
|
/* Only "rm" globs */
|
|
if (cmdnum != I_RM)
|
|
undo_glob_escape(*path1);
|
|
break;
|
|
case I_DF:
|
|
if ((optidx = parse_df_flags(cmd, argv, argc, hflag,
|
|
iflag)) == -1)
|
|
return -1;
|
|
/* Default to current directory if no path specified */
|
|
if (argc - optidx < 1)
|
|
*path1 = NULL;
|
|
else {
|
|
*path1 = xstrdup(argv[optidx]);
|
|
undo_glob_escape(*path1);
|
|
}
|
|
break;
|
|
case I_LS:
|
|
if ((optidx = parse_ls_flags(argv, argc, lflag)) == -1)
|
|
return(-1);
|
|
/* Path is optional */
|
|
if (argc - optidx > 0)
|
|
*path1 = xstrdup(argv[optidx]);
|
|
break;
|
|
case I_LLS:
|
|
/* Skip ls command and following whitespace */
|
|
cp = cp + strlen(cmd) + strspn(cp, WHITESPACE);
|
|
case I_SHELL:
|
|
/* Uses the rest of the line */
|
|
break;
|
|
case I_LUMASK:
|
|
case I_CHMOD:
|
|
base = 8;
|
|
case I_CHOWN:
|
|
case I_CHGRP:
|
|
/* Get numeric arg (mandatory) */
|
|
if (argc - optidx < 1)
|
|
goto need_num_arg;
|
|
errno = 0;
|
|
l = strtol(argv[optidx], &cp2, base);
|
|
if (cp2 == argv[optidx] || *cp2 != '\0' ||
|
|
((l == LONG_MIN || l == LONG_MAX) && errno == ERANGE) ||
|
|
l < 0) {
|
|
need_num_arg:
|
|
error("You must supply a numeric argument "
|
|
"to the %s command.", cmd);
|
|
return -1;
|
|
}
|
|
*n_arg = l;
|
|
if (cmdnum == I_LUMASK)
|
|
break;
|
|
/* Get pathname (mandatory) */
|
|
if (argc - optidx < 2) {
|
|
error("You must specify a path after a %s command.",
|
|
cmd);
|
|
return -1;
|
|
}
|
|
*path1 = xstrdup(argv[optidx + 1]);
|
|
break;
|
|
case I_QUIT:
|
|
case I_PWD:
|
|
case I_LPWD:
|
|
case I_HELP:
|
|
case I_VERSION:
|
|
case I_PROGRESS:
|
|
break;
|
|
default:
|
|
fatal("Command not implemented");
|
|
}
|
|
|
|
*cpp = cp;
|
|
return(cmdnum);
|
|
}
|
|
|
|
static int
|
|
parse_dispatch_command(struct sftp_conn *conn, const char *cmd, char **pwd,
|
|
int err_abort)
|
|
{
|
|
char *path1, *path2, *tmp;
|
|
int pflag = 0, lflag = 0, iflag = 0, hflag = 0, cmdnum, i;
|
|
unsigned long n_arg = 0;
|
|
Attrib a, *aa;
|
|
char path_buf[MAXPATHLEN];
|
|
int err = 0;
|
|
glob_t g;
|
|
|
|
path1 = path2 = NULL;
|
|
cmdnum = parse_args(&cmd, &pflag, &lflag, &iflag, &hflag, &n_arg,
|
|
&path1, &path2);
|
|
|
|
if (iflag != 0)
|
|
err_abort = 0;
|
|
|
|
memset(&g, 0, sizeof(g));
|
|
|
|
/* Perform command */
|
|
switch (cmdnum) {
|
|
case 0:
|
|
/* Blank line */
|
|
break;
|
|
case -1:
|
|
/* Unrecognized command */
|
|
err = -1;
|
|
break;
|
|
case I_GET:
|
|
err = process_get(conn, path1, path2, *pwd, pflag);
|
|
break;
|
|
case I_PUT:
|
|
err = process_put(conn, path1, path2, *pwd, pflag);
|
|
break;
|
|
case I_RENAME:
|
|
path1 = make_absolute(path1, *pwd);
|
|
path2 = make_absolute(path2, *pwd);
|
|
err = do_rename(conn, path1, path2);
|
|
break;
|
|
case I_SYMLINK:
|
|
path2 = make_absolute(path2, *pwd);
|
|
err = do_symlink(conn, path1, path2);
|
|
break;
|
|
case I_RM:
|
|
path1 = make_absolute(path1, *pwd);
|
|
remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
printf("Removing %s\n", g.gl_pathv[i]);
|
|
err = do_rm(conn, g.gl_pathv[i]);
|
|
if (err != 0 && err_abort)
|
|
break;
|
|
}
|
|
break;
|
|
case I_MKDIR:
|
|
path1 = make_absolute(path1, *pwd);
|
|
attrib_clear(&a);
|
|
a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
|
|
a.perm = 0777;
|
|
err = do_mkdir(conn, path1, &a);
|
|
break;
|
|
case I_RMDIR:
|
|
path1 = make_absolute(path1, *pwd);
|
|
err = do_rmdir(conn, path1);
|
|
break;
|
|
case I_CHDIR:
|
|
path1 = make_absolute(path1, *pwd);
|
|
if ((tmp = do_realpath(conn, path1)) == NULL) {
|
|
err = 1;
|
|
break;
|
|
}
|
|
if ((aa = do_stat(conn, tmp, 0)) == NULL) {
|
|
xfree(tmp);
|
|
err = 1;
|
|
break;
|
|
}
|
|
if (!(aa->flags & SSH2_FILEXFER_ATTR_PERMISSIONS)) {
|
|
error("Can't change directory: Can't check target");
|
|
xfree(tmp);
|
|
err = 1;
|
|
break;
|
|
}
|
|
if (!S_ISDIR(aa->perm)) {
|
|
error("Can't change directory: \"%s\" is not "
|
|
"a directory", tmp);
|
|
xfree(tmp);
|
|
err = 1;
|
|
break;
|
|
}
|
|
xfree(*pwd);
|
|
*pwd = tmp;
|
|
break;
|
|
case I_LS:
|
|
if (!path1) {
|
|
do_globbed_ls(conn, *pwd, *pwd, lflag);
|
|
break;
|
|
}
|
|
|
|
/* Strip pwd off beginning of non-absolute paths */
|
|
tmp = NULL;
|
|
if (*path1 != '/')
|
|
tmp = *pwd;
|
|
|
|
path1 = make_absolute(path1, *pwd);
|
|
err = do_globbed_ls(conn, path1, tmp, lflag);
|
|
break;
|
|
case I_DF:
|
|
/* Default to current directory if no path specified */
|
|
if (path1 == NULL)
|
|
path1 = xstrdup(*pwd);
|
|
path1 = make_absolute(path1, *pwd);
|
|
err = do_df(conn, path1, hflag, iflag);
|
|
break;
|
|
case I_LCHDIR:
|
|
if (chdir(path1) == -1) {
|
|
error("Couldn't change local directory to "
|
|
"\"%s\": %s", path1, strerror(errno));
|
|
err = 1;
|
|
}
|
|
break;
|
|
case I_LMKDIR:
|
|
if (mkdir(path1, 0777) == -1) {
|
|
error("Couldn't create local directory "
|
|
"\"%s\": %s", path1, strerror(errno));
|
|
err = 1;
|
|
}
|
|
break;
|
|
case I_LLS:
|
|
local_do_ls(cmd);
|
|
break;
|
|
case I_SHELL:
|
|
local_do_shell(cmd);
|
|
break;
|
|
case I_LUMASK:
|
|
umask(n_arg);
|
|
printf("Local umask: %03lo\n", n_arg);
|
|
break;
|
|
case I_CHMOD:
|
|
path1 = make_absolute(path1, *pwd);
|
|
attrib_clear(&a);
|
|
a.flags |= SSH2_FILEXFER_ATTR_PERMISSIONS;
|
|
a.perm = n_arg;
|
|
remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
printf("Changing mode on %s\n", g.gl_pathv[i]);
|
|
err = do_setstat(conn, g.gl_pathv[i], &a);
|
|
if (err != 0 && err_abort)
|
|
break;
|
|
}
|
|
break;
|
|
case I_CHOWN:
|
|
case I_CHGRP:
|
|
path1 = make_absolute(path1, *pwd);
|
|
remote_glob(conn, path1, GLOB_NOCHECK, NULL, &g);
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
if (!(aa = do_stat(conn, g.gl_pathv[i], 0))) {
|
|
if (err_abort) {
|
|
err = -1;
|
|
break;
|
|
} else
|
|
continue;
|
|
}
|
|
if (!(aa->flags & SSH2_FILEXFER_ATTR_UIDGID)) {
|
|
error("Can't get current ownership of "
|
|
"remote file \"%s\"", g.gl_pathv[i]);
|
|
if (err_abort) {
|
|
err = -1;
|
|
break;
|
|
} else
|
|
continue;
|
|
}
|
|
aa->flags &= SSH2_FILEXFER_ATTR_UIDGID;
|
|
if (cmdnum == I_CHOWN) {
|
|
printf("Changing owner on %s\n", g.gl_pathv[i]);
|
|
aa->uid = n_arg;
|
|
} else {
|
|
printf("Changing group on %s\n", g.gl_pathv[i]);
|
|
aa->gid = n_arg;
|
|
}
|
|
err = do_setstat(conn, g.gl_pathv[i], aa);
|
|
if (err != 0 && err_abort)
|
|
break;
|
|
}
|
|
break;
|
|
case I_PWD:
|
|
printf("Remote working directory: %s\n", *pwd);
|
|
break;
|
|
case I_LPWD:
|
|
if (!getcwd(path_buf, sizeof(path_buf))) {
|
|
error("Couldn't get local cwd: %s", strerror(errno));
|
|
err = -1;
|
|
break;
|
|
}
|
|
printf("Local working directory: %s\n", path_buf);
|
|
break;
|
|
case I_QUIT:
|
|
/* Processed below */
|
|
break;
|
|
case I_HELP:
|
|
help();
|
|
break;
|
|
case I_VERSION:
|
|
printf("SFTP protocol version %u\n", sftp_proto_version(conn));
|
|
break;
|
|
case I_PROGRESS:
|
|
showprogress = !showprogress;
|
|
if (showprogress)
|
|
printf("Progress meter enabled\n");
|
|
else
|
|
printf("Progress meter disabled\n");
|
|
break;
|
|
default:
|
|
fatal("%d is not implemented", cmdnum);
|
|
}
|
|
|
|
if (g.gl_pathc)
|
|
globfree(&g);
|
|
if (path1)
|
|
xfree(path1);
|
|
if (path2)
|
|
xfree(path2);
|
|
|
|
/* If an unignored error occurs in batch mode we should abort. */
|
|
if (err_abort && err != 0)
|
|
return (-1);
|
|
else if (cmdnum == I_QUIT)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef USE_LIBEDIT
|
|
static char *
|
|
prompt(EditLine *el)
|
|
{
|
|
return ("sftp> ");
|
|
}
|
|
#endif
|
|
|
|
int
|
|
interactive_loop(int fd_in, int fd_out, char *file1, char *file2)
|
|
{
|
|
char *pwd;
|
|
char *dir = NULL;
|
|
char cmd[2048];
|
|
struct sftp_conn *conn;
|
|
int err, interactive;
|
|
EditLine *el = NULL;
|
|
#ifdef USE_LIBEDIT
|
|
History *hl = NULL;
|
|
HistEvent hev;
|
|
extern char *__progname;
|
|
|
|
if (!batchmode && isatty(STDIN_FILENO)) {
|
|
if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
|
|
fatal("Couldn't initialise editline");
|
|
if ((hl = history_init()) == NULL)
|
|
fatal("Couldn't initialise editline history");
|
|
history(hl, &hev, H_SETSIZE, 100);
|
|
el_set(el, EL_HIST, history, hl);
|
|
|
|
el_set(el, EL_PROMPT, prompt);
|
|
el_set(el, EL_EDITOR, "emacs");
|
|
el_set(el, EL_TERMINAL, NULL);
|
|
el_set(el, EL_SIGNAL, 1);
|
|
el_source(el, NULL);
|
|
}
|
|
#endif /* USE_LIBEDIT */
|
|
|
|
conn = do_init(fd_in, fd_out, copy_buffer_len, num_requests);
|
|
if (conn == NULL)
|
|
fatal("Couldn't initialise connection to server");
|
|
|
|
pwd = do_realpath(conn, ".");
|
|
if (pwd == NULL)
|
|
fatal("Need cwd");
|
|
|
|
if (file1 != NULL) {
|
|
dir = xstrdup(file1);
|
|
dir = make_absolute(dir, pwd);
|
|
|
|
if (remote_is_dir(conn, dir) && file2 == NULL) {
|
|
printf("Changing to: %s\n", dir);
|
|
snprintf(cmd, sizeof cmd, "cd \"%s\"", dir);
|
|
if (parse_dispatch_command(conn, cmd, &pwd, 1) != 0) {
|
|
xfree(dir);
|
|
xfree(pwd);
|
|
xfree(conn);
|
|
return (-1);
|
|
}
|
|
} else {
|
|
if (file2 == NULL)
|
|
snprintf(cmd, sizeof cmd, "get %s", dir);
|
|
else
|
|
snprintf(cmd, sizeof cmd, "get %s %s", dir,
|
|
file2);
|
|
|
|
err = parse_dispatch_command(conn, cmd, &pwd, 1);
|
|
xfree(dir);
|
|
xfree(pwd);
|
|
xfree(conn);
|
|
return (err);
|
|
}
|
|
xfree(dir);
|
|
}
|
|
|
|
#if defined(HAVE_SETVBUF) && !defined(BROKEN_SETVBUF)
|
|
setvbuf(stdout, NULL, _IOLBF, 0);
|
|
setvbuf(infile, NULL, _IOLBF, 0);
|
|
#else
|
|
setlinebuf(stdout);
|
|
setlinebuf(infile);
|
|
#endif
|
|
|
|
interactive = !batchmode && isatty(STDIN_FILENO);
|
|
err = 0;
|
|
for (;;) {
|
|
char *cp;
|
|
|
|
signal(SIGINT, SIG_IGN);
|
|
|
|
if (el == NULL) {
|
|
if (interactive)
|
|
printf("sftp> ");
|
|
if (fgets(cmd, sizeof(cmd), infile) == NULL) {
|
|
if (interactive)
|
|
printf("\n");
|
|
break;
|
|
}
|
|
if (!interactive) { /* Echo command */
|
|
printf("sftp> %s", cmd);
|
|
if (strlen(cmd) > 0 &&
|
|
cmd[strlen(cmd) - 1] != '\n')
|
|
printf("\n");
|
|
}
|
|
} else {
|
|
#ifdef USE_LIBEDIT
|
|
const char *line;
|
|
int count = 0;
|
|
|
|
if ((line = el_gets(el, &count)) == NULL || count <= 0) {
|
|
printf("\n");
|
|
break;
|
|
}
|
|
history(hl, &hev, H_ENTER, line);
|
|
if (strlcpy(cmd, line, sizeof(cmd)) >= sizeof(cmd)) {
|
|
fprintf(stderr, "Error: input line too long\n");
|
|
continue;
|
|
}
|
|
#endif /* USE_LIBEDIT */
|
|
}
|
|
|
|
cp = strrchr(cmd, '\n');
|
|
if (cp)
|
|
*cp = '\0';
|
|
|
|
/* Handle user interrupts gracefully during commands */
|
|
interrupted = 0;
|
|
signal(SIGINT, cmd_interrupt);
|
|
|
|
err = parse_dispatch_command(conn, cmd, &pwd, batchmode);
|
|
if (err != 0)
|
|
break;
|
|
}
|
|
xfree(pwd);
|
|
xfree(conn);
|
|
|
|
#ifdef USE_LIBEDIT
|
|
if (el != NULL)
|
|
el_end(el);
|
|
#endif /* USE_LIBEDIT */
|
|
|
|
/* err == 1 signifies normal "quit" exit */
|
|
return (err >= 0 ? 0 : -1);
|
|
}
|
|
|
|
static void
|
|
connect_to_server(char *path, char **args, int *in, int *out)
|
|
{
|
|
int c_in, c_out;
|
|
|
|
#ifdef USE_PIPES
|
|
int pin[2], pout[2];
|
|
|
|
if ((pipe(pin) == -1) || (pipe(pout) == -1))
|
|
fatal("pipe: %s", strerror(errno));
|
|
*in = pin[0];
|
|
*out = pout[1];
|
|
c_in = pout[0];
|
|
c_out = pin[1];
|
|
#else /* USE_PIPES */
|
|
int inout[2];
|
|
|
|
if (socketpair(AF_UNIX, SOCK_STREAM, 0, inout) == -1)
|
|
fatal("socketpair: %s", strerror(errno));
|
|
*in = *out = inout[0];
|
|
c_in = c_out = inout[1];
|
|
#endif /* USE_PIPES */
|
|
|
|
if ((sshpid = fork()) == -1)
|
|
fatal("fork: %s", strerror(errno));
|
|
else if (sshpid == 0) {
|
|
if ((dup2(c_in, STDIN_FILENO) == -1) ||
|
|
(dup2(c_out, STDOUT_FILENO) == -1)) {
|
|
fprintf(stderr, "dup2: %s\n", strerror(errno));
|
|
_exit(1);
|
|
}
|
|
close(*in);
|
|
close(*out);
|
|
close(c_in);
|
|
close(c_out);
|
|
|
|
/*
|
|
* The underlying ssh is in the same process group, so we must
|
|
* ignore SIGINT if we want to gracefully abort commands,
|
|
* otherwise the signal will make it to the ssh process and
|
|
* kill it too
|
|
*/
|
|
signal(SIGINT, SIG_IGN);
|
|
execvp(path, args);
|
|
fprintf(stderr, "exec: %s: %s\n", path, strerror(errno));
|
|
_exit(1);
|
|
}
|
|
|
|
signal(SIGTERM, killchild);
|
|
signal(SIGINT, killchild);
|
|
signal(SIGHUP, killchild);
|
|
close(c_in);
|
|
close(c_out);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
extern char *__progname;
|
|
|
|
fprintf(stderr,
|
|
"usage: %s [-1Cv] [-B buffer_size] [-b batchfile] [-F ssh_config]\n"
|
|
" [-o ssh_option] [-P sftp_server_path] [-R num_requests]\n"
|
|
" [-S program] [-s subsystem | sftp_server] host\n"
|
|
" %s [user@]host[:file ...]\n"
|
|
" %s [user@]host[:dir[/]]\n"
|
|
" %s -b batchfile [user@]host\n", __progname, __progname, __progname, __progname);
|
|
exit(1);
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int in, out, ch, err;
|
|
char *host, *userhost, *cp, *file2 = NULL;
|
|
int debug_level = 0, sshver = 2;
|
|
char *file1 = NULL, *sftp_server = NULL;
|
|
char *ssh_program = _PATH_SSH_PROGRAM, *sftp_direct = NULL;
|
|
LogLevel ll = SYSLOG_LEVEL_INFO;
|
|
arglist args;
|
|
extern int optind;
|
|
extern char *optarg;
|
|
|
|
/* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
|
|
sanitise_stdfd();
|
|
|
|
__progname = ssh_get_progname(argv[0]);
|
|
memset(&args, '\0', sizeof(args));
|
|
args.list = NULL;
|
|
addargs(&args, "%s", ssh_program);
|
|
addargs(&args, "-oForwardX11 no");
|
|
addargs(&args, "-oForwardAgent no");
|
|
addargs(&args, "-oPermitLocalCommand no");
|
|
addargs(&args, "-oClearAllForwardings yes");
|
|
|
|
ll = SYSLOG_LEVEL_INFO;
|
|
infile = stdin;
|
|
|
|
while ((ch = getopt(argc, argv, "1hvCo:s:S:b:B:F:P:R:")) != -1) {
|
|
switch (ch) {
|
|
case 'C':
|
|
addargs(&args, "-C");
|
|
break;
|
|
case 'v':
|
|
if (debug_level < 3) {
|
|
addargs(&args, "-v");
|
|
ll = SYSLOG_LEVEL_DEBUG1 + debug_level;
|
|
}
|
|
debug_level++;
|
|
break;
|
|
case 'F':
|
|
case 'o':
|
|
addargs(&args, "-%c%s", ch, optarg);
|
|
break;
|
|
case '1':
|
|
sshver = 1;
|
|
if (sftp_server == NULL)
|
|
sftp_server = _PATH_SFTP_SERVER;
|
|
break;
|
|
case 's':
|
|
sftp_server = optarg;
|
|
break;
|
|
case 'S':
|
|
ssh_program = optarg;
|
|
replacearg(&args, 0, "%s", ssh_program);
|
|
break;
|
|
case 'b':
|
|
if (batchmode)
|
|
fatal("Batch file already specified.");
|
|
|
|
/* Allow "-" as stdin */
|
|
if (strcmp(optarg, "-") != 0 &&
|
|
(infile = fopen(optarg, "r")) == NULL)
|
|
fatal("%s (%s).", strerror(errno), optarg);
|
|
showprogress = 0;
|
|
batchmode = 1;
|
|
addargs(&args, "-obatchmode yes");
|
|
break;
|
|
case 'P':
|
|
sftp_direct = optarg;
|
|
break;
|
|
case 'B':
|
|
copy_buffer_len = strtol(optarg, &cp, 10);
|
|
if (copy_buffer_len == 0 || *cp != '\0')
|
|
fatal("Invalid buffer size \"%s\"", optarg);
|
|
break;
|
|
case 'R':
|
|
num_requests = strtol(optarg, &cp, 10);
|
|
if (num_requests == 0 || *cp != '\0')
|
|
fatal("Invalid number of requests \"%s\"",
|
|
optarg);
|
|
break;
|
|
case 'h':
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
if (!isatty(STDERR_FILENO))
|
|
showprogress = 0;
|
|
|
|
log_init(argv[0], ll, SYSLOG_FACILITY_USER, 1);
|
|
|
|
if (sftp_direct == NULL) {
|
|
if (optind == argc || argc > (optind + 2))
|
|
usage();
|
|
|
|
userhost = xstrdup(argv[optind]);
|
|
file2 = argv[optind+1];
|
|
|
|
if ((host = strrchr(userhost, '@')) == NULL)
|
|
host = userhost;
|
|
else {
|
|
*host++ = '\0';
|
|
if (!userhost[0]) {
|
|
fprintf(stderr, "Missing username\n");
|
|
usage();
|
|
}
|
|
addargs(&args, "-l%s", userhost);
|
|
}
|
|
|
|
if ((cp = colon(host)) != NULL) {
|
|
*cp++ = '\0';
|
|
file1 = cp;
|
|
}
|
|
|
|
host = cleanhostname(host);
|
|
if (!*host) {
|
|
fprintf(stderr, "Missing hostname\n");
|
|
usage();
|
|
}
|
|
|
|
addargs(&args, "-oProtocol %d", sshver);
|
|
|
|
/* no subsystem if the server-spec contains a '/' */
|
|
if (sftp_server == NULL || strchr(sftp_server, '/') == NULL)
|
|
addargs(&args, "-s");
|
|
|
|
addargs(&args, "%s", host);
|
|
addargs(&args, "%s", (sftp_server != NULL ?
|
|
sftp_server : "sftp"));
|
|
|
|
if (!batchmode)
|
|
fprintf(stderr, "Connecting to %s...\n", host);
|
|
connect_to_server(ssh_program, args.list, &in, &out);
|
|
} else {
|
|
args.list = NULL;
|
|
addargs(&args, "sftp-server");
|
|
|
|
if (!batchmode)
|
|
fprintf(stderr, "Attaching to %s...\n", sftp_direct);
|
|
connect_to_server(sftp_direct, args.list, &in, &out);
|
|
}
|
|
freeargs(&args);
|
|
|
|
err = interactive_loop(in, out, file1, file2);
|
|
|
|
#if !defined(USE_PIPES)
|
|
shutdown(in, SHUT_RDWR);
|
|
shutdown(out, SHUT_RDWR);
|
|
#endif
|
|
|
|
close(in);
|
|
close(out);
|
|
if (batchmode)
|
|
fclose(infile);
|
|
|
|
while (waitpid(sshpid, NULL, 0) == -1)
|
|
if (errno != EINTR)
|
|
fatal("Couldn't wait for ssh process: %s",
|
|
strerror(errno));
|
|
|
|
exit(err == 0 ? 0 : 1);
|
|
}
|