Release notes are available at https://www.openssh.com/txt/release-9.1 9.1 contains fixes for three minor memory safety problems; these have lready been merged to the copy of OpenSSH 9.0 that is in the FreeBSD base system. Some highlights copied from the release notes: Potentially-incompatible changes -------------------------------- * ssh(1), sshd(8): SetEnv directives in ssh_config and sshd_config are now first-match-wins to match other directives. Previously if an environment variable was multiply specified the last set value would have been used. bz3438 * ssh-keygen(8): ssh-keygen -A (generate all default host key types) will no longer generate DSA keys, as these are insecure and have not been used by default for some years. New features ------------ * ssh(1), sshd(8): add a RequiredRSASize directive to set a minimum RSA key length. Keys below this length will be ignored for user authentication and for host authentication in sshd(8). * sftp-server(8): add a "users-groups-by-id@openssh.com" extension request that allows the client to obtain user/group names that correspond to a set of uids/gids. * sftp(1): use "users-groups-by-id@openssh.com" sftp-server extension (when available) to fill in user/group names for directory listings. * sftp-server(8): support the "home-directory" extension request defined in draft-ietf-secsh-filexfer-extensions-00. This overlaps a bit with the existing "expand-path@openssh.com", but some other clients support it. * ssh-keygen(1), sshd(8): allow certificate validity intervals, sshsig verification times and authorized_keys expiry-time options to accept dates in the UTC time zone in addition to the default of interpreting them in the system time zone. YYYYMMDD and YYMMDDHHMM[SS] dates/times will be interpreted as UTC if suffixed with a 'Z' character. Also allow certificate validity intervals to be specified in raw seconds-since-epoch as hex value, e.g. -V 0x1234:0x4567890. This is intended for use by regress tests and other tools that call ssh-keygen as part of a CA workflow. bz3468 * sftp(1): allow arguments to the sftp -D option, e.g. sftp -D "/usr/libexec/sftp-server -el debug3" * ssh-keygen(1): allow the existing -U (use agent) flag to work with "-Y sign" operations, where it will be interpreted to require that the private keys is hosted in an agent; bz3429 MFC after: 2 weeks Relnotes: Yes Sponsored by: The FreeBSD Foundation
2174 lines
51 KiB
C
2174 lines
51 KiB
C
/* $OpenBSD: scp.c,v 1.248 2022/05/13 06:31:50 djm Exp $ */
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/*
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* scp - secure remote copy. This is basically patched BSD rcp which
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* uses ssh to do the data transfer (instead of using rcmd).
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*
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* NOTE: This version should NOT be suid root. (This uses ssh to
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* do the transfer and ssh has the necessary privileges.)
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*
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* 1995 Timo Rinne <tri@iki.fi>, Tatu Ylonen <ylo@cs.hut.fi>
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*
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* As far as I am concerned, the code I have written for this software
|
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* can be used freely for any purpose. Any derived versions of this
|
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* software must be clearly marked as such, and if the derived work is
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* incompatible with the protocol description in the RFC file, it must be
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* called by a name other than "ssh" or "Secure Shell".
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*/
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/*
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* Copyright (c) 1999 Theo de Raadt. All rights reserved.
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* Copyright (c) 1999 Aaron Campbell. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Parts from:
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*
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* Copyright (c) 1983, 1990, 1992, 1993, 1995
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include "includes.h"
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#include <sys/types.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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#ifdef HAVE_POLL_H
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#include <poll.h>
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#else
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# ifdef HAVE_SYS_POLL_H
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# include <sys/poll.h>
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# endif
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#endif
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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|
#include <sys/wait.h>
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|
#include <sys/uio.h>
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|
|
#include <ctype.h>
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#include <dirent.h>
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|
#include <errno.h>
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|
#include <fcntl.h>
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|
#ifdef HAVE_FNMATCH_H
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|
#include <fnmatch.h>
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|
#endif
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|
#ifdef USE_SYSTEM_GLOB
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|
# include <glob.h>
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#else
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# include "openbsd-compat/glob.h"
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#endif
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#ifdef HAVE_LIBGEN_H
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#include <libgen.h>
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#endif
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#include <limits.h>
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|
#include <locale.h>
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#include <pwd.h>
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#include <signal.h>
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#include <stdarg.h>
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#ifdef HAVE_STDINT_H
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# include <stdint.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#if defined(HAVE_STRNVIS) && defined(HAVE_VIS_H) && !defined(BROKEN_STRNVIS)
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#include <vis.h>
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#endif
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#include "xmalloc.h"
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#include "ssh.h"
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#include "atomicio.h"
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#include "pathnames.h"
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#include "log.h"
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#include "misc.h"
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|
#include "progressmeter.h"
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#include "utf8.h"
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#include "sftp.h"
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#include "sftp-common.h"
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#include "sftp-client.h"
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extern char *__progname;
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#define COPY_BUFLEN 16384
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int do_cmd(char *, char *, char *, int, int, char *, int *, int *, pid_t *);
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int do_cmd2(char *, char *, int, char *, int, int);
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/* Struct for addargs */
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arglist args;
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arglist remote_remote_args;
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/* Bandwidth limit */
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long long limit_kbps = 0;
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struct bwlimit bwlimit;
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/* Name of current file being transferred. */
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char *curfile;
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/* This is set to non-zero to enable verbose mode. */
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int verbose_mode = 0;
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LogLevel log_level = SYSLOG_LEVEL_INFO;
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/* This is set to zero if the progressmeter is not desired. */
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int showprogress = 1;
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/*
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* This is set to non-zero if remote-remote copy should be piped
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* through this process.
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*/
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int throughlocal = 1;
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/* Non-standard port to use for the ssh connection or -1. */
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int sshport = -1;
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/* This is the program to execute for the secured connection. ("ssh" or -S) */
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char *ssh_program = _PATH_SSH_PROGRAM;
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/* This is used to store the pid of ssh_program */
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pid_t do_cmd_pid = -1;
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pid_t do_cmd_pid2 = -1;
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/* Needed for sftp */
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volatile sig_atomic_t interrupted = 0;
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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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static void
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killchild(int signo)
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{
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if (do_cmd_pid > 1) {
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kill(do_cmd_pid, signo ? signo : SIGTERM);
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waitpid(do_cmd_pid, NULL, 0);
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}
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if (do_cmd_pid2 > 1) {
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kill(do_cmd_pid2, signo ? signo : SIGTERM);
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waitpid(do_cmd_pid2, NULL, 0);
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}
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if (signo)
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_exit(1);
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exit(1);
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}
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static void
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suspone(int pid, int signo)
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{
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int status;
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if (pid > 1) {
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kill(pid, signo);
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while (waitpid(pid, &status, WUNTRACED) == -1 &&
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errno == EINTR)
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;
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}
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}
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static void
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suspchild(int signo)
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{
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suspone(do_cmd_pid, signo);
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suspone(do_cmd_pid2, signo);
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kill(getpid(), SIGSTOP);
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}
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static int
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do_local_cmd(arglist *a)
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{
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u_int i;
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int status;
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pid_t pid;
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if (a->num == 0)
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fatal("do_local_cmd: no arguments");
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if (verbose_mode) {
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fprintf(stderr, "Executing:");
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for (i = 0; i < a->num; i++)
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fmprintf(stderr, " %s", a->list[i]);
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fprintf(stderr, "\n");
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}
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if ((pid = fork()) == -1)
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fatal("do_local_cmd: fork: %s", strerror(errno));
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if (pid == 0) {
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execvp(a->list[0], a->list);
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perror(a->list[0]);
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exit(1);
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}
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do_cmd_pid = pid;
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ssh_signal(SIGTERM, killchild);
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ssh_signal(SIGINT, killchild);
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ssh_signal(SIGHUP, killchild);
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while (waitpid(pid, &status, 0) == -1)
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if (errno != EINTR)
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fatal("do_local_cmd: waitpid: %s", strerror(errno));
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do_cmd_pid = -1;
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if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
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return (-1);
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return (0);
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}
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/*
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* This function executes the given command as the specified user on the
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* given host. This returns < 0 if execution fails, and >= 0 otherwise. This
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* assigns the input and output file descriptors on success.
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*/
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int
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do_cmd(char *program, char *host, char *remuser, int port, int subsystem,
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char *cmd, int *fdin, int *fdout, pid_t *pid)
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{
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int pin[2], pout[2], reserved[2];
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if (verbose_mode)
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fmprintf(stderr,
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"Executing: program %s host %s, user %s, command %s\n",
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program, host,
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remuser ? remuser : "(unspecified)", cmd);
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if (port == -1)
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port = sshport;
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/*
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* Reserve two descriptors so that the real pipes won't get
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* descriptors 0 and 1 because that will screw up dup2 below.
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*/
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if (pipe(reserved) == -1)
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fatal("pipe: %s", strerror(errno));
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/* Create a socket pair for communicating with ssh. */
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if (pipe(pin) == -1)
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fatal("pipe: %s", strerror(errno));
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if (pipe(pout) == -1)
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fatal("pipe: %s", strerror(errno));
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/* Free the reserved descriptors. */
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close(reserved[0]);
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close(reserved[1]);
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ssh_signal(SIGTSTP, suspchild);
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ssh_signal(SIGTTIN, suspchild);
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ssh_signal(SIGTTOU, suspchild);
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/* Fork a child to execute the command on the remote host using ssh. */
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*pid = fork();
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if (*pid == 0) {
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/* Child. */
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close(pin[1]);
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close(pout[0]);
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dup2(pin[0], 0);
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dup2(pout[1], 1);
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close(pin[0]);
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close(pout[1]);
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replacearg(&args, 0, "%s", program);
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if (port != -1) {
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addargs(&args, "-p");
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addargs(&args, "%d", port);
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}
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if (remuser != NULL) {
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addargs(&args, "-l");
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addargs(&args, "%s", remuser);
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}
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if (subsystem)
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addargs(&args, "-s");
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addargs(&args, "--");
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addargs(&args, "%s", host);
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addargs(&args, "%s", cmd);
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execvp(program, args.list);
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perror(program);
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exit(1);
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} else if (*pid == -1) {
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fatal("fork: %s", strerror(errno));
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}
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/* Parent. Close the other side, and return the local side. */
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close(pin[0]);
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*fdout = pin[1];
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close(pout[1]);
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*fdin = pout[0];
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ssh_signal(SIGTERM, killchild);
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ssh_signal(SIGINT, killchild);
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ssh_signal(SIGHUP, killchild);
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return 0;
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}
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|
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/*
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* This function executes a command similar to do_cmd(), but expects the
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* input and output descriptors to be setup by a previous call to do_cmd().
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* This way the input and output of two commands can be connected.
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*/
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int
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do_cmd2(char *host, char *remuser, int port, char *cmd,
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int fdin, int fdout)
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{
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int status;
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pid_t pid;
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if (verbose_mode)
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fmprintf(stderr,
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"Executing: 2nd program %s host %s, user %s, command %s\n",
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ssh_program, host,
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remuser ? remuser : "(unspecified)", cmd);
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if (port == -1)
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port = sshport;
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/* Fork a child to execute the command on the remote host using ssh. */
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pid = fork();
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if (pid == 0) {
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dup2(fdin, 0);
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dup2(fdout, 1);
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replacearg(&args, 0, "%s", ssh_program);
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if (port != -1) {
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addargs(&args, "-p");
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addargs(&args, "%d", port);
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}
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if (remuser != NULL) {
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addargs(&args, "-l");
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addargs(&args, "%s", remuser);
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}
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addargs(&args, "-oBatchMode=yes");
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addargs(&args, "--");
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addargs(&args, "%s", host);
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addargs(&args, "%s", cmd);
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execvp(ssh_program, args.list);
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perror(ssh_program);
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exit(1);
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} else if (pid == -1) {
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|
fatal("fork: %s", strerror(errno));
|
|
}
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while (waitpid(pid, &status, 0) == -1)
|
|
if (errno != EINTR)
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|
fatal("do_cmd2: waitpid: %s", strerror(errno));
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return 0;
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}
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|
|
typedef struct {
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|
size_t cnt;
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|
char *buf;
|
|
} BUF;
|
|
|
|
BUF *allocbuf(BUF *, int, int);
|
|
void lostconn(int);
|
|
int okname(char *);
|
|
void run_err(const char *,...)
|
|
__attribute__((__format__ (printf, 1, 2)))
|
|
__attribute__((__nonnull__ (1)));
|
|
int note_err(const char *,...)
|
|
__attribute__((__format__ (printf, 1, 2)));
|
|
void verifydir(char *);
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|
|
|
struct passwd *pwd;
|
|
uid_t userid;
|
|
int errs, remin, remout, remin2, remout2;
|
|
int Tflag, pflag, iamremote, iamrecursive, targetshouldbedirectory;
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|
|
|
#define CMDNEEDS 64
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|
char cmd[CMDNEEDS]; /* must hold "rcp -r -p -d\0" */
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|
|
|
enum scp_mode_e {
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MODE_SCP,
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MODE_SFTP
|
|
};
|
|
|
|
int response(void);
|
|
void rsource(char *, struct stat *);
|
|
void sink(int, char *[], const char *);
|
|
void source(int, char *[]);
|
|
void tolocal(int, char *[], enum scp_mode_e, char *sftp_direct);
|
|
void toremote(int, char *[], enum scp_mode_e, char *sftp_direct);
|
|
void usage(void);
|
|
|
|
void source_sftp(int, char *, char *, struct sftp_conn *);
|
|
void sink_sftp(int, char *, const char *, struct sftp_conn *);
|
|
void throughlocal_sftp(struct sftp_conn *, struct sftp_conn *,
|
|
char *, char *);
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
int ch, fflag, tflag, status, n;
|
|
char **newargv, *argv0;
|
|
const char *errstr;
|
|
extern char *optarg;
|
|
extern int optind;
|
|
enum scp_mode_e mode = MODE_SFTP;
|
|
char *sftp_direct = NULL;
|
|
|
|
/* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
|
|
sanitise_stdfd();
|
|
|
|
msetlocale();
|
|
|
|
/* Copy argv, because we modify it */
|
|
argv0 = argv[0];
|
|
newargv = xcalloc(MAXIMUM(argc + 1, 1), sizeof(*newargv));
|
|
for (n = 0; n < argc; n++)
|
|
newargv[n] = xstrdup(argv[n]);
|
|
argv = newargv;
|
|
|
|
__progname = ssh_get_progname(argv[0]);
|
|
|
|
log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
|
|
|
|
memset(&args, '\0', sizeof(args));
|
|
memset(&remote_remote_args, '\0', sizeof(remote_remote_args));
|
|
args.list = remote_remote_args.list = NULL;
|
|
addargs(&args, "%s", ssh_program);
|
|
addargs(&args, "-x");
|
|
addargs(&args, "-oPermitLocalCommand=no");
|
|
addargs(&args, "-oClearAllForwardings=yes");
|
|
addargs(&args, "-oRemoteCommand=none");
|
|
addargs(&args, "-oRequestTTY=no");
|
|
|
|
fflag = Tflag = tflag = 0;
|
|
while ((ch = getopt(argc, argv,
|
|
"12346ABCTdfOpqRrstvD:F:J:M:P:S:c:i:l:o:")) != -1) {
|
|
switch (ch) {
|
|
/* User-visible flags. */
|
|
case '1':
|
|
fatal("SSH protocol v.1 is no longer supported");
|
|
break;
|
|
case '2':
|
|
/* Ignored */
|
|
break;
|
|
case 'A':
|
|
case '4':
|
|
case '6':
|
|
case 'C':
|
|
addargs(&args, "-%c", ch);
|
|
addargs(&remote_remote_args, "-%c", ch);
|
|
break;
|
|
case 'D':
|
|
sftp_direct = optarg;
|
|
break;
|
|
case '3':
|
|
throughlocal = 1;
|
|
break;
|
|
case 'R':
|
|
throughlocal = 0;
|
|
break;
|
|
case 'o':
|
|
case 'c':
|
|
case 'i':
|
|
case 'F':
|
|
case 'J':
|
|
addargs(&remote_remote_args, "-%c", ch);
|
|
addargs(&remote_remote_args, "%s", optarg);
|
|
addargs(&args, "-%c", ch);
|
|
addargs(&args, "%s", optarg);
|
|
break;
|
|
case 'O':
|
|
mode = MODE_SCP;
|
|
break;
|
|
case 's':
|
|
mode = MODE_SFTP;
|
|
break;
|
|
case 'P':
|
|
sshport = a2port(optarg);
|
|
if (sshport <= 0)
|
|
fatal("bad port \"%s\"\n", optarg);
|
|
break;
|
|
case 'B':
|
|
addargs(&remote_remote_args, "-oBatchmode=yes");
|
|
addargs(&args, "-oBatchmode=yes");
|
|
break;
|
|
case 'l':
|
|
limit_kbps = strtonum(optarg, 1, 100 * 1024 * 1024,
|
|
&errstr);
|
|
if (errstr != NULL)
|
|
usage();
|
|
limit_kbps *= 1024; /* kbps */
|
|
bandwidth_limit_init(&bwlimit, limit_kbps, COPY_BUFLEN);
|
|
break;
|
|
case 'p':
|
|
pflag = 1;
|
|
break;
|
|
case 'r':
|
|
iamrecursive = 1;
|
|
break;
|
|
case 'S':
|
|
ssh_program = xstrdup(optarg);
|
|
break;
|
|
case 'v':
|
|
addargs(&args, "-v");
|
|
addargs(&remote_remote_args, "-v");
|
|
if (verbose_mode == 0)
|
|
log_level = SYSLOG_LEVEL_DEBUG1;
|
|
else if (log_level < SYSLOG_LEVEL_DEBUG3)
|
|
log_level++;
|
|
verbose_mode = 1;
|
|
break;
|
|
case 'q':
|
|
addargs(&args, "-q");
|
|
addargs(&remote_remote_args, "-q");
|
|
showprogress = 0;
|
|
break;
|
|
|
|
/* Server options. */
|
|
case 'd':
|
|
targetshouldbedirectory = 1;
|
|
break;
|
|
case 'f': /* "from" */
|
|
iamremote = 1;
|
|
fflag = 1;
|
|
break;
|
|
case 't': /* "to" */
|
|
iamremote = 1;
|
|
tflag = 1;
|
|
#ifdef HAVE_CYGWIN
|
|
setmode(0, O_BINARY);
|
|
#endif
|
|
break;
|
|
case 'T':
|
|
Tflag = 1;
|
|
break;
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
log_init(argv0, log_level, SYSLOG_FACILITY_USER, 2);
|
|
|
|
/* Do this last because we want the user to be able to override it */
|
|
addargs(&args, "-oForwardAgent=no");
|
|
|
|
if (iamremote)
|
|
mode = MODE_SCP;
|
|
|
|
if ((pwd = getpwuid(userid = getuid())) == NULL)
|
|
fatal("unknown user %u", (u_int) userid);
|
|
|
|
if (!isatty(STDOUT_FILENO))
|
|
showprogress = 0;
|
|
|
|
if (pflag) {
|
|
/* Cannot pledge: -p allows setuid/setgid files... */
|
|
} else {
|
|
if (pledge("stdio rpath wpath cpath fattr tty proc exec",
|
|
NULL) == -1) {
|
|
perror("pledge");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
remin = STDIN_FILENO;
|
|
remout = STDOUT_FILENO;
|
|
|
|
if (fflag) {
|
|
/* Follow "protocol", send data. */
|
|
(void) response();
|
|
source(argc, argv);
|
|
exit(errs != 0);
|
|
}
|
|
if (tflag) {
|
|
/* Receive data. */
|
|
sink(argc, argv, NULL);
|
|
exit(errs != 0);
|
|
}
|
|
if (argc < 2)
|
|
usage();
|
|
if (argc > 2)
|
|
targetshouldbedirectory = 1;
|
|
|
|
remin = remout = -1;
|
|
do_cmd_pid = -1;
|
|
/* Command to be executed on remote system using "ssh". */
|
|
(void) snprintf(cmd, sizeof cmd, "scp%s%s%s%s",
|
|
verbose_mode ? " -v" : "",
|
|
iamrecursive ? " -r" : "", pflag ? " -p" : "",
|
|
targetshouldbedirectory ? " -d" : "");
|
|
|
|
(void) ssh_signal(SIGPIPE, lostconn);
|
|
|
|
if (colon(argv[argc - 1])) /* Dest is remote host. */
|
|
toremote(argc, argv, mode, sftp_direct);
|
|
else {
|
|
if (targetshouldbedirectory)
|
|
verifydir(argv[argc - 1]);
|
|
tolocal(argc, argv, mode, sftp_direct); /* Dest is local host. */
|
|
}
|
|
/*
|
|
* Finally check the exit status of the ssh process, if one was forked
|
|
* and no error has occurred yet
|
|
*/
|
|
if (do_cmd_pid != -1 && (mode == MODE_SFTP || errs == 0)) {
|
|
if (remin != -1)
|
|
(void) close(remin);
|
|
if (remout != -1)
|
|
(void) close(remout);
|
|
if (waitpid(do_cmd_pid, &status, 0) == -1)
|
|
errs = 1;
|
|
else {
|
|
if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
|
|
errs = 1;
|
|
}
|
|
}
|
|
exit(errs != 0);
|
|
}
|
|
|
|
/* Callback from atomicio6 to update progress meter and limit bandwidth */
|
|
static int
|
|
scpio(void *_cnt, size_t s)
|
|
{
|
|
off_t *cnt = (off_t *)_cnt;
|
|
|
|
*cnt += s;
|
|
refresh_progress_meter(0);
|
|
if (limit_kbps > 0)
|
|
bandwidth_limit(&bwlimit, s);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
do_times(int fd, int verb, const struct stat *sb)
|
|
{
|
|
/* strlen(2^64) == 20; strlen(10^6) == 7 */
|
|
char buf[(20 + 7 + 2) * 2 + 2];
|
|
|
|
(void)snprintf(buf, sizeof(buf), "T%llu 0 %llu 0\n",
|
|
(unsigned long long) (sb->st_mtime < 0 ? 0 : sb->st_mtime),
|
|
(unsigned long long) (sb->st_atime < 0 ? 0 : sb->st_atime));
|
|
if (verb) {
|
|
fprintf(stderr, "File mtime %lld atime %lld\n",
|
|
(long long)sb->st_mtime, (long long)sb->st_atime);
|
|
fprintf(stderr, "Sending file timestamps: %s", buf);
|
|
}
|
|
(void) atomicio(vwrite, fd, buf, strlen(buf));
|
|
return (response());
|
|
}
|
|
|
|
static int
|
|
parse_scp_uri(const char *uri, char **userp, char **hostp, int *portp,
|
|
char **pathp)
|
|
{
|
|
int r;
|
|
|
|
r = parse_uri("scp", uri, userp, hostp, portp, pathp);
|
|
if (r == 0 && *pathp == NULL)
|
|
*pathp = xstrdup(".");
|
|
return r;
|
|
}
|
|
|
|
/* Appends a string to an array; returns 0 on success, -1 on alloc failure */
|
|
static int
|
|
append(char *cp, char ***ap, size_t *np)
|
|
{
|
|
char **tmp;
|
|
|
|
if ((tmp = reallocarray(*ap, *np + 1, sizeof(*tmp))) == NULL)
|
|
return -1;
|
|
tmp[(*np)] = cp;
|
|
(*np)++;
|
|
*ap = tmp;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Finds the start and end of the first brace pair in the pattern.
|
|
* returns 0 on success or -1 for invalid patterns.
|
|
*/
|
|
static int
|
|
find_brace(const char *pattern, int *startp, int *endp)
|
|
{
|
|
int i;
|
|
int in_bracket, brace_level;
|
|
|
|
*startp = *endp = -1;
|
|
in_bracket = brace_level = 0;
|
|
for (i = 0; i < INT_MAX && *endp < 0 && pattern[i] != '\0'; i++) {
|
|
switch (pattern[i]) {
|
|
case '\\':
|
|
/* skip next character */
|
|
if (pattern[i + 1] != '\0')
|
|
i++;
|
|
break;
|
|
case '[':
|
|
in_bracket = 1;
|
|
break;
|
|
case ']':
|
|
in_bracket = 0;
|
|
break;
|
|
case '{':
|
|
if (in_bracket)
|
|
break;
|
|
if (pattern[i + 1] == '}') {
|
|
/* Protect a single {}, for find(1), like csh */
|
|
i++; /* skip */
|
|
break;
|
|
}
|
|
if (*startp == -1)
|
|
*startp = i;
|
|
brace_level++;
|
|
break;
|
|
case '}':
|
|
if (in_bracket)
|
|
break;
|
|
if (*startp < 0) {
|
|
/* Unbalanced brace */
|
|
return -1;
|
|
}
|
|
if (--brace_level <= 0)
|
|
*endp = i;
|
|
break;
|
|
}
|
|
}
|
|
/* unbalanced brackets/braces */
|
|
if (*endp < 0 && (*startp >= 0 || in_bracket))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Assembles and records a successfully-expanded pattern, returns -1 on
|
|
* alloc failure.
|
|
*/
|
|
static int
|
|
emit_expansion(const char *pattern, int brace_start, int brace_end,
|
|
int sel_start, int sel_end, char ***patternsp, size_t *npatternsp)
|
|
{
|
|
char *cp;
|
|
int o = 0, tail_len = strlen(pattern + brace_end + 1);
|
|
|
|
if ((cp = malloc(brace_start + (sel_end - sel_start) +
|
|
tail_len + 1)) == NULL)
|
|
return -1;
|
|
|
|
/* Pattern before initial brace */
|
|
if (brace_start > 0) {
|
|
memcpy(cp, pattern, brace_start);
|
|
o = brace_start;
|
|
}
|
|
/* Current braced selection */
|
|
if (sel_end - sel_start > 0) {
|
|
memcpy(cp + o, pattern + sel_start,
|
|
sel_end - sel_start);
|
|
o += sel_end - sel_start;
|
|
}
|
|
/* Remainder of pattern after closing brace */
|
|
if (tail_len > 0) {
|
|
memcpy(cp + o, pattern + brace_end + 1, tail_len);
|
|
o += tail_len;
|
|
}
|
|
cp[o] = '\0';
|
|
if (append(cp, patternsp, npatternsp) != 0) {
|
|
free(cp);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Expand the first encountered brace in pattern, appending the expanded
|
|
* patterns it yielded to the *patternsp array.
|
|
*
|
|
* Returns 0 on success or -1 on allocation failure.
|
|
*
|
|
* Signals whether expansion was performed via *expanded and whether
|
|
* pattern was invalid via *invalid.
|
|
*/
|
|
static int
|
|
brace_expand_one(const char *pattern, char ***patternsp, size_t *npatternsp,
|
|
int *expanded, int *invalid)
|
|
{
|
|
int i;
|
|
int in_bracket, brace_start, brace_end, brace_level;
|
|
int sel_start, sel_end;
|
|
|
|
*invalid = *expanded = 0;
|
|
|
|
if (find_brace(pattern, &brace_start, &brace_end) != 0) {
|
|
*invalid = 1;
|
|
return 0;
|
|
} else if (brace_start == -1)
|
|
return 0;
|
|
|
|
in_bracket = brace_level = 0;
|
|
for (i = sel_start = brace_start + 1; i < brace_end; i++) {
|
|
switch (pattern[i]) {
|
|
case '{':
|
|
if (in_bracket)
|
|
break;
|
|
brace_level++;
|
|
break;
|
|
case '}':
|
|
if (in_bracket)
|
|
break;
|
|
brace_level--;
|
|
break;
|
|
case '[':
|
|
in_bracket = 1;
|
|
break;
|
|
case ']':
|
|
in_bracket = 0;
|
|
break;
|
|
case '\\':
|
|
if (i < brace_end - 1)
|
|
i++; /* skip */
|
|
break;
|
|
}
|
|
if (pattern[i] == ',' || i == brace_end - 1) {
|
|
if (in_bracket || brace_level > 0)
|
|
continue;
|
|
/* End of a selection, emit an expanded pattern */
|
|
|
|
/* Adjust end index for last selection */
|
|
sel_end = (i == brace_end - 1) ? brace_end : i;
|
|
if (emit_expansion(pattern, brace_start, brace_end,
|
|
sel_start, sel_end, patternsp, npatternsp) != 0)
|
|
return -1;
|
|
/* move on to the next selection */
|
|
sel_start = i + 1;
|
|
continue;
|
|
}
|
|
}
|
|
if (in_bracket || brace_level > 0) {
|
|
*invalid = 1;
|
|
return 0;
|
|
}
|
|
/* success */
|
|
*expanded = 1;
|
|
return 0;
|
|
}
|
|
|
|
/* Expand braces from pattern. Returns 0 on success, -1 on failure */
|
|
static int
|
|
brace_expand(const char *pattern, char ***patternsp, size_t *npatternsp)
|
|
{
|
|
char *cp, *cp2, **active = NULL, **done = NULL;
|
|
size_t i, nactive = 0, ndone = 0;
|
|
int ret = -1, invalid = 0, expanded = 0;
|
|
|
|
*patternsp = NULL;
|
|
*npatternsp = 0;
|
|
|
|
/* Start the worklist with the original pattern */
|
|
if ((cp = strdup(pattern)) == NULL)
|
|
return -1;
|
|
if (append(cp, &active, &nactive) != 0) {
|
|
free(cp);
|
|
return -1;
|
|
}
|
|
while (nactive > 0) {
|
|
cp = active[nactive - 1];
|
|
nactive--;
|
|
if (brace_expand_one(cp, &active, &nactive,
|
|
&expanded, &invalid) == -1) {
|
|
free(cp);
|
|
goto fail;
|
|
}
|
|
if (invalid)
|
|
fatal_f("invalid brace pattern \"%s\"", cp);
|
|
if (expanded) {
|
|
/*
|
|
* Current entry expanded to new entries on the
|
|
* active list; discard the progenitor pattern.
|
|
*/
|
|
free(cp);
|
|
continue;
|
|
}
|
|
/*
|
|
* Pattern did not expand; append the finename component to
|
|
* the completed list
|
|
*/
|
|
if ((cp2 = strrchr(cp, '/')) != NULL)
|
|
*cp2++ = '\0';
|
|
else
|
|
cp2 = cp;
|
|
if (append(xstrdup(cp2), &done, &ndone) != 0) {
|
|
free(cp);
|
|
goto fail;
|
|
}
|
|
free(cp);
|
|
}
|
|
/* success */
|
|
*patternsp = done;
|
|
*npatternsp = ndone;
|
|
done = NULL;
|
|
ndone = 0;
|
|
ret = 0;
|
|
fail:
|
|
for (i = 0; i < nactive; i++)
|
|
free(active[i]);
|
|
free(active);
|
|
for (i = 0; i < ndone; i++)
|
|
free(done[i]);
|
|
free(done);
|
|
return ret;
|
|
}
|
|
|
|
static struct sftp_conn *
|
|
do_sftp_connect(char *host, char *user, int port, char *sftp_direct,
|
|
int *reminp, int *remoutp, int *pidp)
|
|
{
|
|
if (sftp_direct == NULL) {
|
|
if (do_cmd(ssh_program, host, user, port, 1, "sftp",
|
|
reminp, remoutp, pidp) < 0)
|
|
return NULL;
|
|
|
|
} else {
|
|
freeargs(&args);
|
|
addargs(&args, "sftp-server");
|
|
if (do_cmd(sftp_direct, host, NULL, -1, 0, "sftp",
|
|
reminp, remoutp, pidp) < 0)
|
|
return NULL;
|
|
}
|
|
return do_init(*reminp, *remoutp, 32768, 64, limit_kbps);
|
|
}
|
|
|
|
void
|
|
toremote(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
|
|
{
|
|
char *suser = NULL, *host = NULL, *src = NULL;
|
|
char *bp, *tuser, *thost, *targ;
|
|
int sport = -1, tport = -1;
|
|
struct sftp_conn *conn = NULL, *conn2 = NULL;
|
|
arglist alist;
|
|
int i, r, status;
|
|
u_int j;
|
|
|
|
memset(&alist, '\0', sizeof(alist));
|
|
alist.list = NULL;
|
|
|
|
/* Parse target */
|
|
r = parse_scp_uri(argv[argc - 1], &tuser, &thost, &tport, &targ);
|
|
if (r == -1) {
|
|
fmprintf(stderr, "%s: invalid uri\n", argv[argc - 1]);
|
|
++errs;
|
|
goto out;
|
|
}
|
|
if (r != 0) {
|
|
if (parse_user_host_path(argv[argc - 1], &tuser, &thost,
|
|
&targ) == -1) {
|
|
fmprintf(stderr, "%s: invalid target\n", argv[argc - 1]);
|
|
++errs;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Parse source files */
|
|
for (i = 0; i < argc - 1; i++) {
|
|
free(suser);
|
|
free(host);
|
|
free(src);
|
|
r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
|
|
if (r == -1) {
|
|
fmprintf(stderr, "%s: invalid uri\n", argv[i]);
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (r != 0) {
|
|
parse_user_host_path(argv[i], &suser, &host, &src);
|
|
}
|
|
if (suser != NULL && !okname(suser)) {
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (host && throughlocal) { /* extended remote to remote */
|
|
if (mode == MODE_SFTP) {
|
|
if (remin == -1) {
|
|
/* Connect to dest now */
|
|
conn = do_sftp_connect(thost, tuser,
|
|
tport, sftp_direct,
|
|
&remin, &remout, &do_cmd_pid);
|
|
if (conn == NULL) {
|
|
fatal("Unable to open "
|
|
"destination connection");
|
|
}
|
|
debug3_f("origin in %d out %d pid %ld",
|
|
remin, remout, (long)do_cmd_pid);
|
|
}
|
|
/*
|
|
* XXX remember suser/host/sport and only
|
|
* reconnect if they change between arguments.
|
|
* would save reconnections for cases like
|
|
* scp -3 hosta:/foo hosta:/bar hostb:
|
|
*/
|
|
/* Connect to origin now */
|
|
conn2 = do_sftp_connect(host, suser,
|
|
sport, sftp_direct,
|
|
&remin2, &remout2, &do_cmd_pid2);
|
|
if (conn2 == NULL) {
|
|
fatal("Unable to open "
|
|
"source connection");
|
|
}
|
|
debug3_f("destination in %d out %d pid %ld",
|
|
remin2, remout2, (long)do_cmd_pid2);
|
|
throughlocal_sftp(conn2, conn, src, targ);
|
|
(void) close(remin2);
|
|
(void) close(remout2);
|
|
remin2 = remout2 = -1;
|
|
if (waitpid(do_cmd_pid2, &status, 0) == -1)
|
|
++errs;
|
|
else if (!WIFEXITED(status) ||
|
|
WEXITSTATUS(status) != 0)
|
|
++errs;
|
|
do_cmd_pid2 = -1;
|
|
continue;
|
|
} else {
|
|
xasprintf(&bp, "%s -f %s%s", cmd,
|
|
*src == '-' ? "-- " : "", src);
|
|
if (do_cmd(ssh_program, host, suser, sport, 0,
|
|
bp, &remin, &remout, &do_cmd_pid) < 0)
|
|
exit(1);
|
|
free(bp);
|
|
xasprintf(&bp, "%s -t %s%s", cmd,
|
|
*targ == '-' ? "-- " : "", targ);
|
|
if (do_cmd2(thost, tuser, tport, bp,
|
|
remin, remout) < 0)
|
|
exit(1);
|
|
free(bp);
|
|
(void) close(remin);
|
|
(void) close(remout);
|
|
remin = remout = -1;
|
|
}
|
|
} else if (host) { /* standard remote to remote */
|
|
/*
|
|
* Second remote user is passed to first remote side
|
|
* via scp command-line. Ensure it contains no obvious
|
|
* shell characters.
|
|
*/
|
|
if (tuser != NULL && !okname(tuser)) {
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (tport != -1 && tport != SSH_DEFAULT_PORT) {
|
|
/* This would require the remote support URIs */
|
|
fatal("target port not supported with two "
|
|
"remote hosts and the -R option");
|
|
}
|
|
|
|
freeargs(&alist);
|
|
addargs(&alist, "%s", ssh_program);
|
|
addargs(&alist, "-x");
|
|
addargs(&alist, "-oClearAllForwardings=yes");
|
|
addargs(&alist, "-n");
|
|
for (j = 0; j < remote_remote_args.num; j++) {
|
|
addargs(&alist, "%s",
|
|
remote_remote_args.list[j]);
|
|
}
|
|
|
|
if (sport != -1) {
|
|
addargs(&alist, "-p");
|
|
addargs(&alist, "%d", sport);
|
|
}
|
|
if (suser) {
|
|
addargs(&alist, "-l");
|
|
addargs(&alist, "%s", suser);
|
|
}
|
|
addargs(&alist, "--");
|
|
addargs(&alist, "%s", host);
|
|
addargs(&alist, "%s", cmd);
|
|
addargs(&alist, "%s", src);
|
|
addargs(&alist, "%s%s%s:%s",
|
|
tuser ? tuser : "", tuser ? "@" : "",
|
|
thost, targ);
|
|
if (do_local_cmd(&alist) != 0)
|
|
errs = 1;
|
|
} else { /* local to remote */
|
|
if (mode == MODE_SFTP) {
|
|
if (remin == -1) {
|
|
/* Connect to remote now */
|
|
conn = do_sftp_connect(thost, tuser,
|
|
tport, sftp_direct,
|
|
&remin, &remout, &do_cmd_pid);
|
|
if (conn == NULL) {
|
|
fatal("Unable to open sftp "
|
|
"connection");
|
|
}
|
|
}
|
|
|
|
/* The protocol */
|
|
source_sftp(1, argv[i], targ, conn);
|
|
continue;
|
|
}
|
|
/* SCP */
|
|
if (remin == -1) {
|
|
xasprintf(&bp, "%s -t %s%s", cmd,
|
|
*targ == '-' ? "-- " : "", targ);
|
|
if (do_cmd(ssh_program, thost, tuser, tport, 0,
|
|
bp, &remin, &remout, &do_cmd_pid) < 0)
|
|
exit(1);
|
|
if (response() < 0)
|
|
exit(1);
|
|
free(bp);
|
|
}
|
|
source(1, argv + i);
|
|
}
|
|
}
|
|
out:
|
|
if (mode == MODE_SFTP)
|
|
free(conn);
|
|
free(tuser);
|
|
free(thost);
|
|
free(targ);
|
|
free(suser);
|
|
free(host);
|
|
free(src);
|
|
}
|
|
|
|
void
|
|
tolocal(int argc, char **argv, enum scp_mode_e mode, char *sftp_direct)
|
|
{
|
|
char *bp, *host = NULL, *src = NULL, *suser = NULL;
|
|
arglist alist;
|
|
struct sftp_conn *conn = NULL;
|
|
int i, r, sport = -1;
|
|
|
|
memset(&alist, '\0', sizeof(alist));
|
|
alist.list = NULL;
|
|
|
|
for (i = 0; i < argc - 1; i++) {
|
|
free(suser);
|
|
free(host);
|
|
free(src);
|
|
r = parse_scp_uri(argv[i], &suser, &host, &sport, &src);
|
|
if (r == -1) {
|
|
fmprintf(stderr, "%s: invalid uri\n", argv[i]);
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (r != 0)
|
|
parse_user_host_path(argv[i], &suser, &host, &src);
|
|
if (suser != NULL && !okname(suser)) {
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (!host) { /* Local to local. */
|
|
freeargs(&alist);
|
|
addargs(&alist, "%s", _PATH_CP);
|
|
if (iamrecursive)
|
|
addargs(&alist, "-r");
|
|
if (pflag)
|
|
addargs(&alist, "-p");
|
|
addargs(&alist, "--");
|
|
addargs(&alist, "%s", argv[i]);
|
|
addargs(&alist, "%s", argv[argc-1]);
|
|
if (do_local_cmd(&alist))
|
|
++errs;
|
|
continue;
|
|
}
|
|
/* Remote to local. */
|
|
if (mode == MODE_SFTP) {
|
|
conn = do_sftp_connect(host, suser, sport,
|
|
sftp_direct, &remin, &remout, &do_cmd_pid);
|
|
if (conn == NULL) {
|
|
error("sftp connection failed");
|
|
++errs;
|
|
continue;
|
|
}
|
|
|
|
/* The protocol */
|
|
sink_sftp(1, argv[argc - 1], src, conn);
|
|
|
|
free(conn);
|
|
(void) close(remin);
|
|
(void) close(remout);
|
|
remin = remout = -1;
|
|
continue;
|
|
}
|
|
/* SCP */
|
|
xasprintf(&bp, "%s -f %s%s",
|
|
cmd, *src == '-' ? "-- " : "", src);
|
|
if (do_cmd(ssh_program, host, suser, sport, 0, bp,
|
|
&remin, &remout, &do_cmd_pid) < 0) {
|
|
free(bp);
|
|
++errs;
|
|
continue;
|
|
}
|
|
free(bp);
|
|
sink(1, argv + argc - 1, src);
|
|
(void) close(remin);
|
|
remin = remout = -1;
|
|
}
|
|
free(suser);
|
|
free(host);
|
|
free(src);
|
|
}
|
|
|
|
/* Prepare remote path, handling ~ by assuming cwd is the homedir */
|
|
static char *
|
|
prepare_remote_path(struct sftp_conn *conn, const char *path)
|
|
{
|
|
size_t nslash;
|
|
|
|
/* Handle ~ prefixed paths */
|
|
if (*path == '\0' || strcmp(path, "~") == 0)
|
|
return xstrdup(".");
|
|
if (*path != '~')
|
|
return xstrdup(path);
|
|
if (strncmp(path, "~/", 2) == 0) {
|
|
if ((nslash = strspn(path + 2, "/")) == strlen(path + 2))
|
|
return xstrdup(".");
|
|
return xstrdup(path + 2 + nslash);
|
|
}
|
|
if (can_expand_path(conn))
|
|
return do_expand_path(conn, path);
|
|
/* No protocol extension */
|
|
error("server expand-path extension is required "
|
|
"for ~user paths in SFTP mode");
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
source_sftp(int argc, char *src, char *targ, struct sftp_conn *conn)
|
|
{
|
|
char *target = NULL, *filename = NULL, *abs_dst = NULL;
|
|
int src_is_dir, target_is_dir;
|
|
Attrib a;
|
|
struct stat st;
|
|
|
|
memset(&a, '\0', sizeof(a));
|
|
if (stat(src, &st) != 0)
|
|
fatal("stat local \"%s\": %s", src, strerror(errno));
|
|
src_is_dir = S_ISDIR(st.st_mode);
|
|
if ((filename = basename(src)) == NULL)
|
|
fatal("basename \"%s\": %s", src, strerror(errno));
|
|
|
|
/*
|
|
* No need to glob here - the local shell already took care of
|
|
* the expansions
|
|
*/
|
|
if ((target = prepare_remote_path(conn, targ)) == NULL)
|
|
cleanup_exit(255);
|
|
target_is_dir = remote_is_dir(conn, target);
|
|
if (targetshouldbedirectory && !target_is_dir) {
|
|
debug("target directory \"%s\" does not exist", target);
|
|
a.flags = SSH2_FILEXFER_ATTR_PERMISSIONS;
|
|
a.perm = st.st_mode | 0700; /* ensure writable */
|
|
if (do_mkdir(conn, target, &a, 1) != 0)
|
|
cleanup_exit(255); /* error already logged */
|
|
target_is_dir = 1;
|
|
}
|
|
if (target_is_dir)
|
|
abs_dst = path_append(target, filename);
|
|
else {
|
|
abs_dst = target;
|
|
target = NULL;
|
|
}
|
|
debug3_f("copying local %s to remote %s", src, abs_dst);
|
|
|
|
if (src_is_dir && iamrecursive) {
|
|
if (upload_dir(conn, src, abs_dst, pflag,
|
|
SFTP_PROGRESS_ONLY, 0, 0, 1, 1) != 0) {
|
|
error("failed to upload directory %s to %s", src, targ);
|
|
errs = 1;
|
|
}
|
|
} else if (do_upload(conn, src, abs_dst, pflag, 0, 0, 1) != 0) {
|
|
error("failed to upload file %s to %s", src, targ);
|
|
errs = 1;
|
|
}
|
|
|
|
free(abs_dst);
|
|
free(target);
|
|
}
|
|
|
|
void
|
|
source(int argc, char **argv)
|
|
{
|
|
struct stat stb;
|
|
static BUF buffer;
|
|
BUF *bp;
|
|
off_t i, statbytes;
|
|
size_t amt, nr;
|
|
int fd = -1, haderr, indx;
|
|
char *last, *name, buf[PATH_MAX + 128], encname[PATH_MAX];
|
|
int len;
|
|
|
|
for (indx = 0; indx < argc; ++indx) {
|
|
name = argv[indx];
|
|
statbytes = 0;
|
|
len = strlen(name);
|
|
while (len > 1 && name[len-1] == '/')
|
|
name[--len] = '\0';
|
|
if ((fd = open(name, O_RDONLY|O_NONBLOCK)) == -1)
|
|
goto syserr;
|
|
if (strchr(name, '\n') != NULL) {
|
|
strnvis(encname, name, sizeof(encname), VIS_NL);
|
|
name = encname;
|
|
}
|
|
if (fstat(fd, &stb) == -1) {
|
|
syserr: run_err("%s: %s", name, strerror(errno));
|
|
goto next;
|
|
}
|
|
if (stb.st_size < 0) {
|
|
run_err("%s: %s", name, "Negative file size");
|
|
goto next;
|
|
}
|
|
unset_nonblock(fd);
|
|
switch (stb.st_mode & S_IFMT) {
|
|
case S_IFREG:
|
|
break;
|
|
case S_IFDIR:
|
|
if (iamrecursive) {
|
|
rsource(name, &stb);
|
|
goto next;
|
|
}
|
|
/* FALLTHROUGH */
|
|
default:
|
|
run_err("%s: not a regular file", name);
|
|
goto next;
|
|
}
|
|
if ((last = strrchr(name, '/')) == NULL)
|
|
last = name;
|
|
else
|
|
++last;
|
|
curfile = last;
|
|
if (pflag) {
|
|
if (do_times(remout, verbose_mode, &stb) < 0)
|
|
goto next;
|
|
}
|
|
#define FILEMODEMASK (S_ISUID|S_ISGID|S_IRWXU|S_IRWXG|S_IRWXO)
|
|
snprintf(buf, sizeof buf, "C%04o %lld %s\n",
|
|
(u_int) (stb.st_mode & FILEMODEMASK),
|
|
(long long)stb.st_size, last);
|
|
if (verbose_mode)
|
|
fmprintf(stderr, "Sending file modes: %s", buf);
|
|
(void) atomicio(vwrite, remout, buf, strlen(buf));
|
|
if (response() < 0)
|
|
goto next;
|
|
if ((bp = allocbuf(&buffer, fd, COPY_BUFLEN)) == NULL) {
|
|
next: if (fd != -1) {
|
|
(void) close(fd);
|
|
fd = -1;
|
|
}
|
|
continue;
|
|
}
|
|
if (showprogress)
|
|
start_progress_meter(curfile, stb.st_size, &statbytes);
|
|
set_nonblock(remout);
|
|
for (haderr = i = 0; i < stb.st_size; i += bp->cnt) {
|
|
amt = bp->cnt;
|
|
if (i + (off_t)amt > stb.st_size)
|
|
amt = stb.st_size - i;
|
|
if (!haderr) {
|
|
if ((nr = atomicio(read, fd,
|
|
bp->buf, amt)) != amt) {
|
|
haderr = errno;
|
|
memset(bp->buf + nr, 0, amt - nr);
|
|
}
|
|
}
|
|
/* Keep writing after error to retain sync */
|
|
if (haderr) {
|
|
(void)atomicio(vwrite, remout, bp->buf, amt);
|
|
memset(bp->buf, 0, amt);
|
|
continue;
|
|
}
|
|
if (atomicio6(vwrite, remout, bp->buf, amt, scpio,
|
|
&statbytes) != amt)
|
|
haderr = errno;
|
|
}
|
|
unset_nonblock(remout);
|
|
|
|
if (fd != -1) {
|
|
if (close(fd) == -1 && !haderr)
|
|
haderr = errno;
|
|
fd = -1;
|
|
}
|
|
if (!haderr)
|
|
(void) atomicio(vwrite, remout, "", 1);
|
|
else
|
|
run_err("%s: %s", name, strerror(haderr));
|
|
(void) response();
|
|
if (showprogress)
|
|
stop_progress_meter();
|
|
}
|
|
}
|
|
|
|
void
|
|
rsource(char *name, struct stat *statp)
|
|
{
|
|
DIR *dirp;
|
|
struct dirent *dp;
|
|
char *last, *vect[1], path[PATH_MAX];
|
|
|
|
if (!(dirp = opendir(name))) {
|
|
run_err("%s: %s", name, strerror(errno));
|
|
return;
|
|
}
|
|
last = strrchr(name, '/');
|
|
if (last == NULL)
|
|
last = name;
|
|
else
|
|
last++;
|
|
if (pflag) {
|
|
if (do_times(remout, verbose_mode, statp) < 0) {
|
|
closedir(dirp);
|
|
return;
|
|
}
|
|
}
|
|
(void) snprintf(path, sizeof path, "D%04o %d %.1024s\n",
|
|
(u_int) (statp->st_mode & FILEMODEMASK), 0, last);
|
|
if (verbose_mode)
|
|
fmprintf(stderr, "Entering directory: %s", path);
|
|
(void) atomicio(vwrite, remout, path, strlen(path));
|
|
if (response() < 0) {
|
|
closedir(dirp);
|
|
return;
|
|
}
|
|
while ((dp = readdir(dirp)) != NULL) {
|
|
if (dp->d_ino == 0)
|
|
continue;
|
|
if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, ".."))
|
|
continue;
|
|
if (strlen(name) + 1 + strlen(dp->d_name) >= sizeof(path) - 1) {
|
|
run_err("%s/%s: name too long", name, dp->d_name);
|
|
continue;
|
|
}
|
|
(void) snprintf(path, sizeof path, "%s/%s", name, dp->d_name);
|
|
vect[0] = path;
|
|
source(1, vect);
|
|
}
|
|
(void) closedir(dirp);
|
|
(void) atomicio(vwrite, remout, "E\n", 2);
|
|
(void) response();
|
|
}
|
|
|
|
void
|
|
sink_sftp(int argc, char *dst, const char *src, struct sftp_conn *conn)
|
|
{
|
|
char *abs_src = NULL;
|
|
char *abs_dst = NULL;
|
|
glob_t g;
|
|
char *filename, *tmp = NULL;
|
|
int i, r, err = 0, dst_is_dir;
|
|
struct stat st;
|
|
|
|
memset(&g, 0, sizeof(g));
|
|
|
|
/*
|
|
* Here, we need remote glob as SFTP can not depend on remote shell
|
|
* expansions
|
|
*/
|
|
if ((abs_src = prepare_remote_path(conn, src)) == NULL) {
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
debug3_f("copying remote %s to local %s", abs_src, dst);
|
|
if ((r = remote_glob(conn, abs_src, GLOB_MARK, NULL, &g)) != 0) {
|
|
if (r == GLOB_NOSPACE)
|
|
error("%s: too many glob matches", src);
|
|
else
|
|
error("%s: %s", src, strerror(ENOENT));
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
if ((r = stat(dst, &st)) != 0)
|
|
debug2_f("stat local \"%s\": %s", dst, strerror(errno));
|
|
dst_is_dir = r == 0 && S_ISDIR(st.st_mode);
|
|
|
|
if (g.gl_matchc > 1 && !dst_is_dir) {
|
|
if (r == 0) {
|
|
error("Multiple files match pattern, but destination "
|
|
"\"%s\" is not a directory", dst);
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
debug2_f("creating destination \"%s\"", dst);
|
|
if (mkdir(dst, 0777) != 0) {
|
|
error("local mkdir \"%s\": %s", dst, strerror(errno));
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
dst_is_dir = 1;
|
|
}
|
|
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
tmp = xstrdup(g.gl_pathv[i]);
|
|
if ((filename = basename(tmp)) == NULL) {
|
|
error("basename %s: %s", tmp, strerror(errno));
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (dst_is_dir)
|
|
abs_dst = path_append(dst, filename);
|
|
else
|
|
abs_dst = xstrdup(dst);
|
|
|
|
debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
|
|
if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
|
|
if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
|
|
pflag, SFTP_PROGRESS_ONLY, 0, 0, 1, 1) == -1)
|
|
err = -1;
|
|
} else {
|
|
if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
|
|
pflag, 0, 0, 1) == -1)
|
|
err = -1;
|
|
}
|
|
free(abs_dst);
|
|
abs_dst = NULL;
|
|
free(tmp);
|
|
tmp = NULL;
|
|
}
|
|
|
|
out:
|
|
free(abs_src);
|
|
free(tmp);
|
|
globfree(&g);
|
|
if (err == -1)
|
|
errs = 1;
|
|
}
|
|
|
|
|
|
#define TYPE_OVERFLOW(type, val) \
|
|
((sizeof(type) == 4 && (val) > INT32_MAX) || \
|
|
(sizeof(type) == 8 && (val) > INT64_MAX) || \
|
|
(sizeof(type) != 4 && sizeof(type) != 8))
|
|
|
|
void
|
|
sink(int argc, char **argv, const char *src)
|
|
{
|
|
static BUF buffer;
|
|
struct stat stb;
|
|
BUF *bp;
|
|
off_t i;
|
|
size_t j, count;
|
|
int amt, exists, first, ofd;
|
|
mode_t mode, omode, mask;
|
|
off_t size, statbytes;
|
|
unsigned long long ull;
|
|
int setimes, targisdir, wrerr;
|
|
char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048];
|
|
char **patterns = NULL;
|
|
size_t n, npatterns = 0;
|
|
struct timeval tv[2];
|
|
|
|
#define atime tv[0]
|
|
#define mtime tv[1]
|
|
#define SCREWUP(str) { why = str; goto screwup; }
|
|
|
|
if (TYPE_OVERFLOW(time_t, 0) || TYPE_OVERFLOW(off_t, 0))
|
|
SCREWUP("Unexpected off_t/time_t size");
|
|
|
|
setimes = targisdir = 0;
|
|
mask = umask(0);
|
|
if (!pflag)
|
|
(void) umask(mask);
|
|
if (argc != 1) {
|
|
run_err("ambiguous target");
|
|
exit(1);
|
|
}
|
|
targ = *argv;
|
|
if (targetshouldbedirectory)
|
|
verifydir(targ);
|
|
|
|
(void) atomicio(vwrite, remout, "", 1);
|
|
if (stat(targ, &stb) == 0 && S_ISDIR(stb.st_mode))
|
|
targisdir = 1;
|
|
if (src != NULL && !iamrecursive && !Tflag) {
|
|
/*
|
|
* Prepare to try to restrict incoming filenames to match
|
|
* the requested destination file glob.
|
|
*/
|
|
if (brace_expand(src, &patterns, &npatterns) != 0)
|
|
fatal_f("could not expand pattern");
|
|
}
|
|
for (first = 1;; first = 0) {
|
|
cp = buf;
|
|
if (atomicio(read, remin, cp, 1) != 1)
|
|
goto done;
|
|
if (*cp++ == '\n')
|
|
SCREWUP("unexpected <newline>");
|
|
do {
|
|
if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
|
|
SCREWUP("lost connection");
|
|
*cp++ = ch;
|
|
} while (cp < &buf[sizeof(buf) - 1] && ch != '\n');
|
|
*cp = 0;
|
|
if (verbose_mode)
|
|
fmprintf(stderr, "Sink: %s", buf);
|
|
|
|
if (buf[0] == '\01' || buf[0] == '\02') {
|
|
if (iamremote == 0) {
|
|
(void) snmprintf(visbuf, sizeof(visbuf),
|
|
NULL, "%s", buf + 1);
|
|
(void) atomicio(vwrite, STDERR_FILENO,
|
|
visbuf, strlen(visbuf));
|
|
}
|
|
if (buf[0] == '\02')
|
|
exit(1);
|
|
++errs;
|
|
continue;
|
|
}
|
|
if (buf[0] == 'E') {
|
|
(void) atomicio(vwrite, remout, "", 1);
|
|
goto done;
|
|
}
|
|
if (ch == '\n')
|
|
*--cp = 0;
|
|
|
|
cp = buf;
|
|
if (*cp == 'T') {
|
|
setimes++;
|
|
cp++;
|
|
if (!isdigit((unsigned char)*cp))
|
|
SCREWUP("mtime.sec not present");
|
|
ull = strtoull(cp, &cp, 10);
|
|
if (!cp || *cp++ != ' ')
|
|
SCREWUP("mtime.sec not delimited");
|
|
if (TYPE_OVERFLOW(time_t, ull))
|
|
setimes = 0; /* out of range */
|
|
mtime.tv_sec = ull;
|
|
mtime.tv_usec = strtol(cp, &cp, 10);
|
|
if (!cp || *cp++ != ' ' || mtime.tv_usec < 0 ||
|
|
mtime.tv_usec > 999999)
|
|
SCREWUP("mtime.usec not delimited");
|
|
if (!isdigit((unsigned char)*cp))
|
|
SCREWUP("atime.sec not present");
|
|
ull = strtoull(cp, &cp, 10);
|
|
if (!cp || *cp++ != ' ')
|
|
SCREWUP("atime.sec not delimited");
|
|
if (TYPE_OVERFLOW(time_t, ull))
|
|
setimes = 0; /* out of range */
|
|
atime.tv_sec = ull;
|
|
atime.tv_usec = strtol(cp, &cp, 10);
|
|
if (!cp || *cp++ != '\0' || atime.tv_usec < 0 ||
|
|
atime.tv_usec > 999999)
|
|
SCREWUP("atime.usec not delimited");
|
|
(void) atomicio(vwrite, remout, "", 1);
|
|
continue;
|
|
}
|
|
if (*cp != 'C' && *cp != 'D') {
|
|
/*
|
|
* Check for the case "rcp remote:foo\* local:bar".
|
|
* In this case, the line "No match." can be returned
|
|
* by the shell before the rcp command on the remote is
|
|
* executed so the ^Aerror_message convention isn't
|
|
* followed.
|
|
*/
|
|
if (first) {
|
|
run_err("%s", cp);
|
|
exit(1);
|
|
}
|
|
SCREWUP("expected control record");
|
|
}
|
|
mode = 0;
|
|
for (++cp; cp < buf + 5; cp++) {
|
|
if (*cp < '0' || *cp > '7')
|
|
SCREWUP("bad mode");
|
|
mode = (mode << 3) | (*cp - '0');
|
|
}
|
|
if (!pflag)
|
|
mode &= ~mask;
|
|
if (*cp++ != ' ')
|
|
SCREWUP("mode not delimited");
|
|
|
|
if (!isdigit((unsigned char)*cp))
|
|
SCREWUP("size not present");
|
|
ull = strtoull(cp, &cp, 10);
|
|
if (!cp || *cp++ != ' ')
|
|
SCREWUP("size not delimited");
|
|
if (TYPE_OVERFLOW(off_t, ull))
|
|
SCREWUP("size out of range");
|
|
size = (off_t)ull;
|
|
|
|
if (*cp == '\0' || strchr(cp, '/') != NULL ||
|
|
strcmp(cp, ".") == 0 || strcmp(cp, "..") == 0) {
|
|
run_err("error: unexpected filename: %s", cp);
|
|
exit(1);
|
|
}
|
|
if (npatterns > 0) {
|
|
for (n = 0; n < npatterns; n++) {
|
|
if (fnmatch(patterns[n], cp, 0) == 0)
|
|
break;
|
|
}
|
|
if (n >= npatterns)
|
|
SCREWUP("filename does not match request");
|
|
}
|
|
if (targisdir) {
|
|
static char *namebuf;
|
|
static size_t cursize;
|
|
size_t need;
|
|
|
|
need = strlen(targ) + strlen(cp) + 250;
|
|
if (need > cursize) {
|
|
free(namebuf);
|
|
namebuf = xmalloc(need);
|
|
cursize = need;
|
|
}
|
|
(void) snprintf(namebuf, need, "%s%s%s", targ,
|
|
strcmp(targ, "/") ? "/" : "", cp);
|
|
np = namebuf;
|
|
} else
|
|
np = targ;
|
|
curfile = cp;
|
|
exists = stat(np, &stb) == 0;
|
|
if (buf[0] == 'D') {
|
|
int mod_flag = pflag;
|
|
if (!iamrecursive)
|
|
SCREWUP("received directory without -r");
|
|
if (exists) {
|
|
if (!S_ISDIR(stb.st_mode)) {
|
|
errno = ENOTDIR;
|
|
goto bad;
|
|
}
|
|
if (pflag)
|
|
(void) chmod(np, mode);
|
|
} else {
|
|
/* Handle copying from a read-only directory */
|
|
mod_flag = 1;
|
|
if (mkdir(np, mode | S_IRWXU) == -1)
|
|
goto bad;
|
|
}
|
|
vect[0] = xstrdup(np);
|
|
sink(1, vect, src);
|
|
if (setimes) {
|
|
setimes = 0;
|
|
(void) utimes(vect[0], tv);
|
|
}
|
|
if (mod_flag)
|
|
(void) chmod(vect[0], mode);
|
|
free(vect[0]);
|
|
continue;
|
|
}
|
|
omode = mode;
|
|
mode |= S_IWUSR;
|
|
if ((ofd = open(np, O_WRONLY|O_CREAT, mode)) == -1) {
|
|
bad: run_err("%s: %s", np, strerror(errno));
|
|
continue;
|
|
}
|
|
(void) atomicio(vwrite, remout, "", 1);
|
|
if ((bp = allocbuf(&buffer, ofd, COPY_BUFLEN)) == NULL) {
|
|
(void) close(ofd);
|
|
continue;
|
|
}
|
|
cp = bp->buf;
|
|
wrerr = 0;
|
|
|
|
/*
|
|
* NB. do not use run_err() unless immediately followed by
|
|
* exit() below as it may send a spurious reply that might
|
|
* desyncronise us from the peer. Use note_err() instead.
|
|
*/
|
|
statbytes = 0;
|
|
if (showprogress)
|
|
start_progress_meter(curfile, size, &statbytes);
|
|
set_nonblock(remin);
|
|
for (count = i = 0; i < size; i += bp->cnt) {
|
|
amt = bp->cnt;
|
|
if (i + amt > size)
|
|
amt = size - i;
|
|
count += amt;
|
|
do {
|
|
j = atomicio6(read, remin, cp, amt,
|
|
scpio, &statbytes);
|
|
if (j == 0) {
|
|
run_err("%s", j != EPIPE ?
|
|
strerror(errno) :
|
|
"dropped connection");
|
|
exit(1);
|
|
}
|
|
amt -= j;
|
|
cp += j;
|
|
} while (amt > 0);
|
|
|
|
if (count == bp->cnt) {
|
|
/* Keep reading so we stay sync'd up. */
|
|
if (!wrerr) {
|
|
if (atomicio(vwrite, ofd, bp->buf,
|
|
count) != count) {
|
|
note_err("%s: %s", np,
|
|
strerror(errno));
|
|
wrerr = 1;
|
|
}
|
|
}
|
|
count = 0;
|
|
cp = bp->buf;
|
|
}
|
|
}
|
|
unset_nonblock(remin);
|
|
if (count != 0 && !wrerr &&
|
|
atomicio(vwrite, ofd, bp->buf, count) != count) {
|
|
note_err("%s: %s", np, strerror(errno));
|
|
wrerr = 1;
|
|
}
|
|
if (!wrerr && (!exists || S_ISREG(stb.st_mode)) &&
|
|
ftruncate(ofd, size) != 0)
|
|
note_err("%s: truncate: %s", np, strerror(errno));
|
|
if (pflag) {
|
|
if (exists || omode != mode)
|
|
#ifdef HAVE_FCHMOD
|
|
if (fchmod(ofd, omode)) {
|
|
#else /* HAVE_FCHMOD */
|
|
if (chmod(np, omode)) {
|
|
#endif /* HAVE_FCHMOD */
|
|
note_err("%s: set mode: %s",
|
|
np, strerror(errno));
|
|
}
|
|
} else {
|
|
if (!exists && omode != mode)
|
|
#ifdef HAVE_FCHMOD
|
|
if (fchmod(ofd, omode & ~mask)) {
|
|
#else /* HAVE_FCHMOD */
|
|
if (chmod(np, omode & ~mask)) {
|
|
#endif /* HAVE_FCHMOD */
|
|
note_err("%s: set mode: %s",
|
|
np, strerror(errno));
|
|
}
|
|
}
|
|
if (close(ofd) == -1)
|
|
note_err("%s: close: %s", np, strerror(errno));
|
|
(void) response();
|
|
if (showprogress)
|
|
stop_progress_meter();
|
|
if (setimes && !wrerr) {
|
|
setimes = 0;
|
|
if (utimes(np, tv) == -1) {
|
|
note_err("%s: set times: %s",
|
|
np, strerror(errno));
|
|
}
|
|
}
|
|
/* If no error was noted then signal success for this file */
|
|
if (note_err(NULL) == 0)
|
|
(void) atomicio(vwrite, remout, "", 1);
|
|
}
|
|
done:
|
|
for (n = 0; n < npatterns; n++)
|
|
free(patterns[n]);
|
|
free(patterns);
|
|
return;
|
|
screwup:
|
|
for (n = 0; n < npatterns; n++)
|
|
free(patterns[n]);
|
|
free(patterns);
|
|
run_err("protocol error: %s", why);
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
throughlocal_sftp(struct sftp_conn *from, struct sftp_conn *to,
|
|
char *src, char *targ)
|
|
{
|
|
char *target = NULL, *filename = NULL, *abs_dst = NULL;
|
|
char *abs_src = NULL, *tmp = NULL;
|
|
glob_t g;
|
|
int i, r, targetisdir, err = 0;
|
|
|
|
if ((filename = basename(src)) == NULL)
|
|
fatal("basename %s: %s", src, strerror(errno));
|
|
|
|
if ((abs_src = prepare_remote_path(from, src)) == NULL ||
|
|
(target = prepare_remote_path(to, targ)) == NULL)
|
|
cleanup_exit(255);
|
|
memset(&g, 0, sizeof(g));
|
|
|
|
targetisdir = remote_is_dir(to, target);
|
|
if (!targetisdir && targetshouldbedirectory) {
|
|
error("%s: destination is not a directory", targ);
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
debug3_f("copying remote %s to remote %s", abs_src, target);
|
|
if ((r = remote_glob(from, abs_src, GLOB_MARK, NULL, &g)) != 0) {
|
|
if (r == GLOB_NOSPACE)
|
|
error("%s: too many glob matches", src);
|
|
else
|
|
error("%s: %s", src, strerror(ENOENT));
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
for (i = 0; g.gl_pathv[i] && !interrupted; i++) {
|
|
tmp = xstrdup(g.gl_pathv[i]);
|
|
if ((filename = basename(tmp)) == NULL) {
|
|
error("basename %s: %s", tmp, strerror(errno));
|
|
err = -1;
|
|
goto out;
|
|
}
|
|
|
|
if (targetisdir)
|
|
abs_dst = path_append(target, filename);
|
|
else
|
|
abs_dst = xstrdup(target);
|
|
|
|
debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
|
|
if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
|
|
if (crossload_dir(from, to, g.gl_pathv[i], abs_dst,
|
|
NULL, pflag, SFTP_PROGRESS_ONLY, 1) == -1)
|
|
err = -1;
|
|
} else {
|
|
if (do_crossload(from, to, g.gl_pathv[i], abs_dst, NULL,
|
|
pflag) == -1)
|
|
err = -1;
|
|
}
|
|
free(abs_dst);
|
|
abs_dst = NULL;
|
|
free(tmp);
|
|
tmp = NULL;
|
|
}
|
|
|
|
out:
|
|
free(abs_src);
|
|
free(abs_dst);
|
|
free(target);
|
|
free(tmp);
|
|
globfree(&g);
|
|
if (err == -1)
|
|
errs = 1;
|
|
}
|
|
|
|
int
|
|
response(void)
|
|
{
|
|
char ch, *cp, resp, rbuf[2048], visbuf[2048];
|
|
|
|
if (atomicio(read, remin, &resp, sizeof(resp)) != sizeof(resp))
|
|
lostconn(0);
|
|
|
|
cp = rbuf;
|
|
switch (resp) {
|
|
case 0: /* ok */
|
|
return (0);
|
|
default:
|
|
*cp++ = resp;
|
|
/* FALLTHROUGH */
|
|
case 1: /* error, followed by error msg */
|
|
case 2: /* fatal error, "" */
|
|
do {
|
|
if (atomicio(read, remin, &ch, sizeof(ch)) != sizeof(ch))
|
|
lostconn(0);
|
|
*cp++ = ch;
|
|
} while (cp < &rbuf[sizeof(rbuf) - 1] && ch != '\n');
|
|
|
|
if (!iamremote) {
|
|
cp[-1] = '\0';
|
|
(void) snmprintf(visbuf, sizeof(visbuf),
|
|
NULL, "%s\n", rbuf);
|
|
(void) atomicio(vwrite, STDERR_FILENO,
|
|
visbuf, strlen(visbuf));
|
|
}
|
|
++errs;
|
|
if (resp == 1)
|
|
return (-1);
|
|
exit(1);
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
(void) fprintf(stderr,
|
|
"usage: scp [-346ABCOpqRrsTv] [-c cipher] [-D sftp_server_path] [-F ssh_config]\n"
|
|
" [-i identity_file] [-J destination] [-l limit]\n"
|
|
" [-o ssh_option] [-P port] [-S program] source ... target\n");
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
run_err(const char *fmt,...)
|
|
{
|
|
static FILE *fp;
|
|
va_list ap;
|
|
|
|
++errs;
|
|
if (fp != NULL || (remout != -1 && (fp = fdopen(remout, "w")))) {
|
|
(void) fprintf(fp, "%c", 0x01);
|
|
(void) fprintf(fp, "scp: ");
|
|
va_start(ap, fmt);
|
|
(void) vfprintf(fp, fmt, ap);
|
|
va_end(ap);
|
|
(void) fprintf(fp, "\n");
|
|
(void) fflush(fp);
|
|
}
|
|
|
|
if (!iamremote) {
|
|
va_start(ap, fmt);
|
|
vfmprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Notes a sink error for sending at the end of a file transfer. Returns 0 if
|
|
* no error has been noted or -1 otherwise. Use note_err(NULL) to flush
|
|
* any active error at the end of the transfer.
|
|
*/
|
|
int
|
|
note_err(const char *fmt, ...)
|
|
{
|
|
static char *emsg;
|
|
va_list ap;
|
|
|
|
/* Replay any previously-noted error */
|
|
if (fmt == NULL) {
|
|
if (emsg == NULL)
|
|
return 0;
|
|
run_err("%s", emsg);
|
|
free(emsg);
|
|
emsg = NULL;
|
|
return -1;
|
|
}
|
|
|
|
errs++;
|
|
/* Prefer first-noted error */
|
|
if (emsg != NULL)
|
|
return -1;
|
|
|
|
va_start(ap, fmt);
|
|
vasnmprintf(&emsg, INT_MAX, NULL, fmt, ap);
|
|
va_end(ap);
|
|
return -1;
|
|
}
|
|
|
|
void
|
|
verifydir(char *cp)
|
|
{
|
|
struct stat stb;
|
|
|
|
if (!stat(cp, &stb)) {
|
|
if (S_ISDIR(stb.st_mode))
|
|
return;
|
|
errno = ENOTDIR;
|
|
}
|
|
run_err("%s: %s", cp, strerror(errno));
|
|
killchild(0);
|
|
}
|
|
|
|
int
|
|
okname(char *cp0)
|
|
{
|
|
int c;
|
|
char *cp;
|
|
|
|
cp = cp0;
|
|
do {
|
|
c = (int)*cp;
|
|
if (c & 0200)
|
|
goto bad;
|
|
if (!isalpha(c) && !isdigit((unsigned char)c)) {
|
|
switch (c) {
|
|
case '\'':
|
|
case '"':
|
|
case '`':
|
|
case ' ':
|
|
case '#':
|
|
goto bad;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
} while (*++cp);
|
|
return (1);
|
|
|
|
bad: fmprintf(stderr, "%s: invalid user name\n", cp0);
|
|
return (0);
|
|
}
|
|
|
|
BUF *
|
|
allocbuf(BUF *bp, int fd, int blksize)
|
|
{
|
|
size_t size;
|
|
#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE
|
|
struct stat stb;
|
|
|
|
if (fstat(fd, &stb) == -1) {
|
|
run_err("fstat: %s", strerror(errno));
|
|
return (0);
|
|
}
|
|
size = ROUNDUP(stb.st_blksize, blksize);
|
|
if (size == 0)
|
|
size = blksize;
|
|
#else /* HAVE_STRUCT_STAT_ST_BLKSIZE */
|
|
size = blksize;
|
|
#endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
|
|
if (bp->cnt >= size)
|
|
return (bp);
|
|
bp->buf = xrecallocarray(bp->buf, bp->cnt, size, 1);
|
|
bp->cnt = size;
|
|
return (bp);
|
|
}
|
|
|
|
void
|
|
lostconn(int signo)
|
|
{
|
|
if (!iamremote)
|
|
(void)write(STDERR_FILENO, "lost connection\n", 16);
|
|
if (signo)
|
|
_exit(1);
|
|
else
|
|
exit(1);
|
|
}
|
|
|
|
void
|
|
cleanup_exit(int i)
|
|
{
|
|
if (remin > 0)
|
|
close(remin);
|
|
if (remout > 0)
|
|
close(remout);
|
|
if (remin2 > 0)
|
|
close(remin2);
|
|
if (remout2 > 0)
|
|
close(remout2);
|
|
if (do_cmd_pid > 0)
|
|
waitpid(do_cmd_pid, NULL, 0);
|
|
if (do_cmd_pid2 > 0)
|
|
waitpid(do_cmd_pid2, NULL, 0);
|
|
exit(i);
|
|
}
|