зеркало из https://github.com/github/putty.git
2357 строки
70 KiB
C
2357 строки
70 KiB
C
/*
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* scp.c - Scp (Secure Copy) client for PuTTY.
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* Joris van Rantwijk, Simon Tatham
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*
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* This is mainly based on ssh-1.2.26/scp.c by Timo Rinne & Tatu Ylonen.
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* They, in turn, used stuff from BSD rcp.
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*
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* (SGT, 2001-09-10: Joris van Rantwijk assures me that although
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* this file as originally submitted was inspired by, and
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* _structurally_ based on, ssh-1.2.26's scp.c, there wasn't any
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* actual code duplicated, so the above comment shouldn't give rise
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* to licensing issues.)
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*/
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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 <limits.h>
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#include <time.h>
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#include <assert.h>
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#define PUTTY_DO_GLOBALS
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#include "putty.h"
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#include "psftp.h"
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#include "ssh.h"
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#include "sftp.h"
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#include "storage.h"
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static bool list = false;
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static bool verbose = false;
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static bool recursive = false;
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static bool preserve = false;
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static bool targetshouldbedirectory = false;
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static bool statistics = true;
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static int prev_stats_len = 0;
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static bool scp_unsafe_mode = false;
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static int errs = 0;
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static bool try_scp = true;
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static bool try_sftp = true;
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static bool main_cmd_is_sftp = false;
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static bool fallback_cmd_is_sftp = false;
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static bool using_sftp = false;
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static bool uploading = false;
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static Backend *backend;
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Conf *conf;
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bool sent_eof = false;
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static void source(const char *src);
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static void rsource(const char *src);
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static void sink(const char *targ, const char *src);
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const char *const appname = "PSCP";
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/*
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* The maximum amount of queued data we accept before we stop and
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* wait for the server to process some.
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*/
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#define MAX_SCP_BUFSIZE 16384
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void ldisc_echoedit_update(Ldisc *ldisc) { }
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static size_t pscp_output(Seat *, bool is_stderr, const void *, size_t);
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static bool pscp_eof(Seat *);
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static const SeatVtable pscp_seat_vt = {
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pscp_output,
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pscp_eof,
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filexfer_get_userpass_input,
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nullseat_notify_remote_exit,
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console_connection_fatal,
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nullseat_update_specials_menu,
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nullseat_get_ttymode,
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nullseat_set_busy_status,
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console_verify_ssh_host_key,
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console_confirm_weak_crypto_primitive,
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console_confirm_weak_cached_hostkey,
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nullseat_is_never_utf8,
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nullseat_echoedit_update,
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nullseat_get_x_display,
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nullseat_get_windowid,
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nullseat_get_window_pixel_size,
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console_stripctrl_new,
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nullseat_set_trust_status_vacuously,
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};
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static Seat pscp_seat[1] = {{ &pscp_seat_vt }};
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static void tell_char(FILE *stream, char c)
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{
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fputc(c, stream);
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}
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static void tell_str(FILE *stream, const char *str)
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{
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unsigned int i;
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for (i = 0; i < strlen(str); ++i)
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tell_char(stream, str[i]);
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}
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static void abandon_stats(void)
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{
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/*
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* Output a \n to stdout (which is where we've been sending
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* transfer statistics) so that the cursor will move to the next
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* line. We should do this before displaying any other kind of
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* output like an error message.
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*/
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if (prev_stats_len) {
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putchar('\n');
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fflush(stdout);
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prev_stats_len = 0;
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}
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}
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static PRINTF_LIKE(2, 3) void tell_user(FILE *stream, const char *fmt, ...)
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{
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char *str, *str2;
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va_list ap;
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va_start(ap, fmt);
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str = dupvprintf(fmt, ap);
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va_end(ap);
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str2 = dupcat(str, "\n");
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sfree(str);
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abandon_stats();
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tell_str(stream, str2);
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sfree(str2);
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}
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void agent_schedule_callback(void (*callback)(void *, void *, int),
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void *callback_ctx, void *data, int len)
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{
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unreachable("all PSCP agent requests should be synchronous");
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}
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/*
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* Receive a block of data from the SSH link. Block until all data
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* is available.
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*
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* To do this, we repeatedly call the SSH protocol module, with our
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* own pscp_output() function to catch the data that comes back. We do
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* this until we have enough data.
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*/
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static bufchain received_data;
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static BinarySink *stderr_bs;
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static size_t pscp_output(
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Seat *seat, bool is_stderr, const void *data, size_t len)
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{
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/*
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* stderr data is just spouted to local stderr (optionally via a
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* sanitiser) and otherwise ignored.
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*/
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if (is_stderr) {
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put_data(stderr_bs, data, len);
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return 0;
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}
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bufchain_add(&received_data, data, len);
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return 0;
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}
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static bool pscp_eof(Seat *seat)
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{
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/*
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* We usually expect to be the party deciding when to close the
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* connection, so if we see EOF before we sent it ourselves, we
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* should panic. The exception is if we're using old-style scp and
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* downloading rather than uploading.
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*/
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if ((using_sftp || uploading) && !sent_eof) {
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seat_connection_fatal(
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pscp_seat, "Received unexpected end-of-file from server");
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}
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return false;
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}
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static bool ssh_scp_recv(void *vbuf, size_t len)
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{
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char *buf = (char *)vbuf;
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while (len > 0) {
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while (bufchain_size(&received_data) == 0) {
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if (backend_exitcode(backend) >= 0 ||
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ssh_sftp_loop_iteration() < 0)
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return false; /* doom */
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}
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size_t got = bufchain_fetch_consume_up_to(&received_data, buf, len);
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buf += got;
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len -= got;
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}
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return true;
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}
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/*
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* Loop through the ssh connection and authentication process.
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*/
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static void ssh_scp_init(void)
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{
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while (!backend_sendok(backend)) {
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if (backend_exitcode(backend) >= 0) {
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errs++;
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return;
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}
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if (ssh_sftp_loop_iteration() < 0) {
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errs++;
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return; /* doom */
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}
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}
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/* Work out which backend we ended up using. */
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if (!ssh_fallback_cmd(backend))
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using_sftp = main_cmd_is_sftp;
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else
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using_sftp = fallback_cmd_is_sftp;
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if (verbose) {
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if (using_sftp)
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tell_user(stderr, "Using SFTP");
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else
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tell_user(stderr, "Using SCP1");
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}
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}
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/*
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* Print an error message and exit after closing the SSH link.
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*/
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static NORETURN PRINTF_LIKE(1, 2) void bump(const char *fmt, ...)
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{
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char *str, *str2;
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va_list ap;
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va_start(ap, fmt);
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str = dupvprintf(fmt, ap);
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va_end(ap);
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str2 = dupcat(str, "\n");
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sfree(str);
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abandon_stats();
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tell_str(stderr, str2);
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sfree(str2);
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errs++;
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if (backend && backend_connected(backend)) {
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char ch;
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backend_special(backend, SS_EOF, 0);
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sent_eof = true;
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ssh_scp_recv(&ch, 1);
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}
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cleanup_exit(1);
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}
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/*
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* A nasty loop macro that lets me get an escape-sequence sanitised
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* version of a string for display, and free it automatically
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* afterwards.
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*/
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static StripCtrlChars *string_scc;
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#define with_stripctrl(varname, input) \
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for (char *varname = stripctrl_string(string_scc, input); varname; \
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sfree(varname), varname = NULL)
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/*
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* Wait for the reply to a single SFTP request. Parallels the same
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* function in psftp.c (but isn't centralised into sftp.c because the
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* latter module handles SFTP only and shouldn't assume that SFTP is
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* the only thing going on by calling seat_connection_fatal).
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*/
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struct sftp_packet *sftp_wait_for_reply(struct sftp_request *req)
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{
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struct sftp_packet *pktin;
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struct sftp_request *rreq;
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sftp_register(req);
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pktin = sftp_recv();
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if (pktin == NULL) {
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seat_connection_fatal(
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pscp_seat, "did not receive SFTP response packet from server");
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}
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rreq = sftp_find_request(pktin);
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if (rreq != req) {
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seat_connection_fatal(
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pscp_seat,
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"unable to understand SFTP response packet from server: %s",
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fxp_error());
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}
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return pktin;
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}
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/*
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* Open an SSH connection to user@host and execute cmd.
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*/
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static void do_cmd(char *host, char *user, char *cmd)
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{
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const char *err;
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char *realhost;
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LogContext *logctx;
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if (host == NULL || host[0] == '\0')
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bump("Empty host name");
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/*
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* Remove a colon suffix.
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*/
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host[host_strcspn(host, ":")] = '\0';
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/*
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* If we haven't loaded session details already (e.g., from -load),
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* try looking for a session called "host".
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*/
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if (!loaded_session) {
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/* Try to load settings for `host' into a temporary config */
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Conf *conf2 = conf_new();
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conf_set_str(conf2, CONF_host, "");
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do_defaults(host, conf2);
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if (conf_get_str(conf2, CONF_host)[0] != '\0') {
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/* Settings present and include hostname */
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/* Re-load data into the real config. */
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do_defaults(host, conf);
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} else {
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/* Session doesn't exist or mention a hostname. */
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/* Use `host' as a bare hostname. */
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conf_set_str(conf, CONF_host, host);
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}
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conf_free(conf2);
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} else {
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/* Patch in hostname `host' to session details. */
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conf_set_str(conf, CONF_host, host);
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}
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/*
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* Force use of SSH. (If they got the protocol wrong we assume the
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* port is useless too.)
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*/
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if (conf_get_int(conf, CONF_protocol) != PROT_SSH) {
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conf_set_int(conf, CONF_protocol, PROT_SSH);
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conf_set_int(conf, CONF_port, 22);
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}
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/*
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* Enact command-line overrides.
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*/
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cmdline_run_saved(conf);
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/*
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* Muck about with the hostname in various ways.
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*/
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{
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char *hostbuf = dupstr(conf_get_str(conf, CONF_host));
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char *host = hostbuf;
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char *p, *q;
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/*
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* Trim leading whitespace.
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*/
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host += strspn(host, " \t");
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/*
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* See if host is of the form user@host, and separate out
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* the username if so.
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*/
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if (host[0] != '\0') {
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char *atsign = strrchr(host, '@');
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if (atsign) {
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*atsign = '\0';
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conf_set_str(conf, CONF_username, host);
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host = atsign + 1;
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}
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}
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/*
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* Remove any remaining whitespace.
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*/
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p = hostbuf;
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q = host;
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while (*q) {
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if (*q != ' ' && *q != '\t')
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*p++ = *q;
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q++;
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}
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*p = '\0';
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conf_set_str(conf, CONF_host, hostbuf);
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sfree(hostbuf);
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}
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/* Set username */
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if (user != NULL && user[0] != '\0') {
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conf_set_str(conf, CONF_username, user);
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} else if (conf_get_str(conf, CONF_username)[0] == '\0') {
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user = get_username();
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if (!user)
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bump("Empty user name");
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else {
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if (verbose)
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tell_user(stderr, "Guessing user name: %s", user);
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conf_set_str(conf, CONF_username, user);
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sfree(user);
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}
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}
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/*
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* Disable scary things which shouldn't be enabled for simple
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* things like SCP and SFTP: agent forwarding, port forwarding,
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* X forwarding.
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*/
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conf_set_bool(conf, CONF_x11_forward, false);
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conf_set_bool(conf, CONF_agentfwd, false);
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conf_set_bool(conf, CONF_ssh_simple, true);
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{
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char *key;
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while ((key = conf_get_str_nthstrkey(conf, CONF_portfwd, 0)) != NULL)
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conf_del_str_str(conf, CONF_portfwd, key);
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}
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/*
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* Set up main and possibly fallback command depending on
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* options specified by user.
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* Attempt to start the SFTP subsystem as a first choice,
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* falling back to the provided scp command if that fails.
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*/
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conf_set_str(conf, CONF_remote_cmd2, "");
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if (try_sftp) {
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/* First choice is SFTP subsystem. */
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main_cmd_is_sftp = true;
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conf_set_str(conf, CONF_remote_cmd, "sftp");
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conf_set_bool(conf, CONF_ssh_subsys, true);
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if (try_scp) {
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/* Fallback is to use the provided scp command. */
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fallback_cmd_is_sftp = false;
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conf_set_str(conf, CONF_remote_cmd2, cmd);
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conf_set_bool(conf, CONF_ssh_subsys2, false);
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} else {
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/* Since we're not going to try SCP, we may as well try
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* harder to find an SFTP server, since in the current
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* implementation we have a spare slot. */
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fallback_cmd_is_sftp = true;
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/* see psftp.c for full explanation of this kludge */
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conf_set_str(conf, CONF_remote_cmd2,
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"test -x /usr/lib/sftp-server &&"
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" exec /usr/lib/sftp-server\n"
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"test -x /usr/local/lib/sftp-server &&"
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" exec /usr/local/lib/sftp-server\n"
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"exec sftp-server");
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conf_set_bool(conf, CONF_ssh_subsys2, false);
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}
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} else {
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/* Don't try SFTP at all; just try the scp command. */
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main_cmd_is_sftp = false;
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conf_set_str(conf, CONF_remote_cmd, cmd);
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conf_set_bool(conf, CONF_ssh_subsys, false);
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}
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conf_set_bool(conf, CONF_nopty, true);
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logctx = log_init(default_logpolicy, conf);
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platform_psftp_pre_conn_setup();
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err = backend_init(&ssh_backend, pscp_seat, &backend, logctx, conf,
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conf_get_str(conf, CONF_host),
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conf_get_int(conf, CONF_port),
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&realhost, 0,
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conf_get_bool(conf, CONF_tcp_keepalives));
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if (err != NULL)
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bump("ssh_init: %s", err);
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ssh_scp_init();
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if (verbose && realhost != NULL && errs == 0)
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tell_user(stderr, "Connected to %s", realhost);
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sfree(realhost);
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}
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/*
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* Update statistic information about current file.
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*/
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static void print_stats(const char *name, uint64_t size, uint64_t done,
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time_t start, time_t now)
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{
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float ratebs;
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unsigned long eta;
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char *etastr;
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int pct;
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int len;
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int elap;
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elap = (unsigned long) difftime(now, start);
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if (now > start)
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ratebs = (float)done / elap;
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else
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ratebs = (float)done;
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if (ratebs < 1.0)
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eta = size - done;
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else
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eta = (unsigned long)((size - done) / ratebs);
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etastr = dupprintf("%02ld:%02ld:%02ld",
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eta / 3600, (eta % 3600) / 60, eta % 60);
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pct = (int) (100.0 * done / size);
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{
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/* divide by 1024 to provide kB */
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len = printf("\r%-25.25s | %"PRIu64" kB | %5.1f kB/s | "
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"ETA: %8s | %3d%%", name, done >> 10,
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ratebs / 1024.0, etastr, pct);
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if (len < prev_stats_len)
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printf("%*s", prev_stats_len - len, "");
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prev_stats_len = len;
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if (done == size)
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abandon_stats();
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fflush(stdout);
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}
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free(etastr);
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}
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/*
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* Find a colon in str and return a pointer to the colon.
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* This is used to separate hostname from filename.
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*/
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static char *colon(char *str)
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{
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/* We ignore a leading colon, since the hostname cannot be
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empty. We also ignore a colon as second character because
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of filenames like f:myfile.txt. */
|
|
if (str[0] == '\0' || str[0] == ':' ||
|
|
(str[0] != '[' && str[1] == ':'))
|
|
return (NULL);
|
|
str += host_strcspn(str, ":/\\");
|
|
if (*str == ':')
|
|
return (str);
|
|
else
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Determine whether a string is entirely composed of dots.
|
|
*/
|
|
static bool is_dots(char *str)
|
|
{
|
|
return str[strspn(str, ".")] == '\0';
|
|
}
|
|
|
|
/*
|
|
* Wait for a response from the other side.
|
|
* Return 0 if ok, -1 if error.
|
|
*/
|
|
static int response(void)
|
|
{
|
|
char ch, resp, rbuf[2048];
|
|
int p;
|
|
|
|
if (!ssh_scp_recv(&resp, 1))
|
|
bump("Lost connection");
|
|
|
|
p = 0;
|
|
switch (resp) {
|
|
case 0: /* ok */
|
|
return (0);
|
|
default:
|
|
rbuf[p++] = resp;
|
|
/* fallthrough */
|
|
case 1: /* error */
|
|
case 2: /* fatal error */
|
|
do {
|
|
if (!ssh_scp_recv(&ch, 1))
|
|
bump("Protocol error: Lost connection");
|
|
rbuf[p++] = ch;
|
|
} while (p < sizeof(rbuf) && ch != '\n');
|
|
rbuf[p - 1] = '\0';
|
|
if (resp == 1)
|
|
tell_user(stderr, "%s", rbuf);
|
|
else
|
|
bump("%s", rbuf);
|
|
errs++;
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
bool sftp_recvdata(char *buf, size_t len)
|
|
{
|
|
return ssh_scp_recv(buf, len);
|
|
}
|
|
bool sftp_senddata(const char *buf, size_t len)
|
|
{
|
|
backend_send(backend, buf, len);
|
|
return true;
|
|
}
|
|
size_t sftp_sendbuffer(void)
|
|
{
|
|
return backend_sendbuffer(backend);
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* sftp-based replacement for the hacky `pscp -ls'.
|
|
*/
|
|
void list_directory_from_sftp_warn_unsorted(void)
|
|
{
|
|
fprintf(stderr,
|
|
"Directory is too large to sort; writing file names unsorted\n");
|
|
}
|
|
|
|
void list_directory_from_sftp_print(struct fxp_name *name)
|
|
{
|
|
with_stripctrl(san, name->longname)
|
|
printf("%s\n", san);
|
|
}
|
|
|
|
void scp_sftp_listdir(const char *dirname)
|
|
{
|
|
struct fxp_handle *dirh;
|
|
struct fxp_names *names;
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
|
|
if (!fxp_init()) {
|
|
tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
|
|
errs++;
|
|
return;
|
|
}
|
|
|
|
printf("Listing directory %s\n", dirname);
|
|
|
|
req = fxp_opendir_send(dirname);
|
|
pktin = sftp_wait_for_reply(req);
|
|
dirh = fxp_opendir_recv(pktin, req);
|
|
|
|
if (dirh == NULL) {
|
|
tell_user(stderr, "Unable to open %s: %s\n", dirname, fxp_error());
|
|
errs++;
|
|
} else {
|
|
struct list_directory_from_sftp_ctx *ctx =
|
|
list_directory_from_sftp_new();
|
|
|
|
while (1) {
|
|
|
|
req = fxp_readdir_send(dirh);
|
|
pktin = sftp_wait_for_reply(req);
|
|
names = fxp_readdir_recv(pktin, req);
|
|
|
|
if (names == NULL) {
|
|
if (fxp_error_type() == SSH_FX_EOF)
|
|
break;
|
|
printf("Reading directory %s: %s\n", dirname, fxp_error());
|
|
break;
|
|
}
|
|
if (names->nnames == 0) {
|
|
fxp_free_names(names);
|
|
break;
|
|
}
|
|
|
|
for (size_t i = 0; i < names->nnames; i++)
|
|
list_directory_from_sftp_feed(ctx, &names->names[i]);
|
|
|
|
fxp_free_names(names);
|
|
}
|
|
req = fxp_close_send(dirh);
|
|
pktin = sftp_wait_for_reply(req);
|
|
fxp_close_recv(pktin, req);
|
|
|
|
list_directory_from_sftp_finish(ctx);
|
|
list_directory_from_sftp_free(ctx);
|
|
}
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Helper routines that contain the actual SCP protocol elements,
|
|
* implemented both as SCP1 and SFTP.
|
|
*/
|
|
|
|
static struct scp_sftp_dirstack {
|
|
struct scp_sftp_dirstack *next;
|
|
struct fxp_name *names;
|
|
int namepos, namelen;
|
|
char *dirpath;
|
|
char *wildcard;
|
|
bool matched_something; /* wildcard match set was non-empty */
|
|
} *scp_sftp_dirstack_head;
|
|
static char *scp_sftp_remotepath, *scp_sftp_currentname;
|
|
static char *scp_sftp_wildcard;
|
|
static bool scp_sftp_targetisdir, scp_sftp_donethistarget;
|
|
static bool scp_sftp_preserve, scp_sftp_recursive;
|
|
static unsigned long scp_sftp_mtime, scp_sftp_atime;
|
|
static bool scp_has_times;
|
|
static struct fxp_handle *scp_sftp_filehandle;
|
|
static struct fxp_xfer *scp_sftp_xfer;
|
|
static uint64_t scp_sftp_fileoffset;
|
|
|
|
int scp_source_setup(const char *target, bool shouldbedir)
|
|
{
|
|
if (using_sftp) {
|
|
/*
|
|
* Find out whether the target filespec is in fact a
|
|
* directory.
|
|
*/
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
struct fxp_attrs attrs;
|
|
bool ret;
|
|
|
|
if (!fxp_init()) {
|
|
tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
|
|
errs++;
|
|
return 1;
|
|
}
|
|
|
|
req = fxp_stat_send(target);
|
|
pktin = sftp_wait_for_reply(req);
|
|
ret = fxp_stat_recv(pktin, req, &attrs);
|
|
|
|
if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS))
|
|
scp_sftp_targetisdir = false;
|
|
else
|
|
scp_sftp_targetisdir = (attrs.permissions & 0040000) != 0;
|
|
|
|
if (shouldbedir && !scp_sftp_targetisdir) {
|
|
bump("pscp: remote filespec %s: not a directory\n", target);
|
|
}
|
|
|
|
scp_sftp_remotepath = dupstr(target);
|
|
|
|
scp_has_times = false;
|
|
} else {
|
|
(void) response();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int scp_send_errmsg(char *str)
|
|
{
|
|
if (using_sftp) {
|
|
/* do nothing; we never need to send our errors to the server */
|
|
} else {
|
|
backend_send(backend, "\001", 1);/* scp protocol error prefix */
|
|
backend_send(backend, str, strlen(str));
|
|
}
|
|
return 0; /* can't fail */
|
|
}
|
|
|
|
int scp_send_filetimes(unsigned long mtime, unsigned long atime)
|
|
{
|
|
if (using_sftp) {
|
|
scp_sftp_mtime = mtime;
|
|
scp_sftp_atime = atime;
|
|
scp_has_times = true;
|
|
return 0;
|
|
} else {
|
|
char buf[80];
|
|
sprintf(buf, "T%lu 0 %lu 0\n", mtime, atime);
|
|
backend_send(backend, buf, strlen(buf));
|
|
return response();
|
|
}
|
|
}
|
|
|
|
int scp_send_filename(const char *name, uint64_t size, int permissions)
|
|
{
|
|
if (using_sftp) {
|
|
char *fullname;
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
struct fxp_attrs attrs;
|
|
|
|
if (scp_sftp_targetisdir) {
|
|
fullname = dupcat(scp_sftp_remotepath, "/", name);
|
|
} else {
|
|
fullname = dupstr(scp_sftp_remotepath);
|
|
}
|
|
|
|
attrs.flags = 0;
|
|
PUT_PERMISSIONS(attrs, permissions);
|
|
|
|
req = fxp_open_send(fullname,
|
|
SSH_FXF_WRITE | SSH_FXF_CREAT | SSH_FXF_TRUNC,
|
|
&attrs);
|
|
pktin = sftp_wait_for_reply(req);
|
|
scp_sftp_filehandle = fxp_open_recv(pktin, req);
|
|
|
|
if (!scp_sftp_filehandle) {
|
|
tell_user(stderr, "pscp: unable to open %s: %s",
|
|
fullname, fxp_error());
|
|
sfree(fullname);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
scp_sftp_fileoffset = 0;
|
|
scp_sftp_xfer = xfer_upload_init(scp_sftp_filehandle,
|
|
scp_sftp_fileoffset);
|
|
sfree(fullname);
|
|
return 0;
|
|
} else {
|
|
char *buf;
|
|
if (permissions < 0)
|
|
permissions = 0644;
|
|
buf = dupprintf("C%04o %"PRIu64" ", (int)(permissions & 07777), size);
|
|
backend_send(backend, buf, strlen(buf));
|
|
sfree(buf);
|
|
backend_send(backend, name, strlen(name));
|
|
backend_send(backend, "\n", 1);
|
|
return response();
|
|
}
|
|
}
|
|
|
|
int scp_send_filedata(char *data, int len)
|
|
{
|
|
if (using_sftp) {
|
|
int ret;
|
|
struct sftp_packet *pktin;
|
|
|
|
if (!scp_sftp_filehandle) {
|
|
return 1;
|
|
}
|
|
|
|
while (!xfer_upload_ready(scp_sftp_xfer)) {
|
|
if (toplevel_callback_pending()) {
|
|
/* If we have pending callbacks, they might make
|
|
* xfer_upload_ready start to return true. So we should
|
|
* run them and then re-check xfer_upload_ready, before
|
|
* we go as far as waiting for an entire packet to
|
|
* arrive. */
|
|
run_toplevel_callbacks();
|
|
continue;
|
|
}
|
|
pktin = sftp_recv();
|
|
ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
|
|
if (ret <= 0) {
|
|
tell_user(stderr, "error while writing: %s", fxp_error());
|
|
if (ret == INT_MIN) /* pktin not even freed */
|
|
sfree(pktin);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
xfer_upload_data(scp_sftp_xfer, data, len);
|
|
|
|
scp_sftp_fileoffset += len;
|
|
return 0;
|
|
} else {
|
|
int bufsize = backend_send(backend, data, len);
|
|
|
|
/*
|
|
* If the network transfer is backing up - that is, the
|
|
* remote site is not accepting data as fast as we can
|
|
* produce it - then we must loop on network events until
|
|
* we have space in the buffer again.
|
|
*/
|
|
while (bufsize > MAX_SCP_BUFSIZE) {
|
|
if (ssh_sftp_loop_iteration() < 0)
|
|
return 1;
|
|
bufsize = backend_sendbuffer(backend);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int scp_send_finish(void)
|
|
{
|
|
if (using_sftp) {
|
|
struct fxp_attrs attrs;
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
|
|
while (!xfer_done(scp_sftp_xfer)) {
|
|
pktin = sftp_recv();
|
|
int ret = xfer_upload_gotpkt(scp_sftp_xfer, pktin);
|
|
if (ret <= 0) {
|
|
tell_user(stderr, "error while writing: %s", fxp_error());
|
|
if (ret == INT_MIN) /* pktin not even freed */
|
|
sfree(pktin);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
}
|
|
xfer_cleanup(scp_sftp_xfer);
|
|
|
|
if (!scp_sftp_filehandle) {
|
|
return 1;
|
|
}
|
|
if (scp_has_times) {
|
|
attrs.flags = SSH_FILEXFER_ATTR_ACMODTIME;
|
|
attrs.atime = scp_sftp_atime;
|
|
attrs.mtime = scp_sftp_mtime;
|
|
req = fxp_fsetstat_send(scp_sftp_filehandle, attrs);
|
|
pktin = sftp_wait_for_reply(req);
|
|
bool ret = fxp_fsetstat_recv(pktin, req);
|
|
if (!ret) {
|
|
tell_user(stderr, "unable to set file times: %s", fxp_error());
|
|
errs++;
|
|
}
|
|
}
|
|
req = fxp_close_send(scp_sftp_filehandle);
|
|
pktin = sftp_wait_for_reply(req);
|
|
fxp_close_recv(pktin, req);
|
|
scp_has_times = false;
|
|
return 0;
|
|
} else {
|
|
backend_send(backend, "", 1);
|
|
return response();
|
|
}
|
|
}
|
|
|
|
char *scp_save_remotepath(void)
|
|
{
|
|
if (using_sftp)
|
|
return scp_sftp_remotepath;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
void scp_restore_remotepath(char *data)
|
|
{
|
|
if (using_sftp)
|
|
scp_sftp_remotepath = data;
|
|
}
|
|
|
|
int scp_send_dirname(const char *name, int modes)
|
|
{
|
|
if (using_sftp) {
|
|
char *fullname;
|
|
char const *err;
|
|
struct fxp_attrs attrs;
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
bool ret;
|
|
|
|
if (scp_sftp_targetisdir) {
|
|
fullname = dupcat(scp_sftp_remotepath, "/", name);
|
|
} else {
|
|
fullname = dupstr(scp_sftp_remotepath);
|
|
}
|
|
|
|
/*
|
|
* We don't worry about whether we managed to create the
|
|
* directory, because if it exists already it's OK just to
|
|
* use it. Instead, we will stat it afterwards, and if it
|
|
* exists and is a directory we will assume we were either
|
|
* successful or it didn't matter.
|
|
*/
|
|
req = fxp_mkdir_send(fullname, NULL);
|
|
pktin = sftp_wait_for_reply(req);
|
|
ret = fxp_mkdir_recv(pktin, req);
|
|
|
|
if (!ret)
|
|
err = fxp_error();
|
|
else
|
|
err = "server reported no error";
|
|
|
|
req = fxp_stat_send(fullname);
|
|
pktin = sftp_wait_for_reply(req);
|
|
ret = fxp_stat_recv(pktin, req, &attrs);
|
|
|
|
if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS) ||
|
|
!(attrs.permissions & 0040000)) {
|
|
tell_user(stderr, "unable to create directory %s: %s",
|
|
fullname, err);
|
|
sfree(fullname);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
|
|
scp_sftp_remotepath = fullname;
|
|
|
|
return 0;
|
|
} else {
|
|
char buf[40];
|
|
sprintf(buf, "D%04o 0 ", modes);
|
|
backend_send(backend, buf, strlen(buf));
|
|
backend_send(backend, name, strlen(name));
|
|
backend_send(backend, "\n", 1);
|
|
return response();
|
|
}
|
|
}
|
|
|
|
int scp_send_enddir(void)
|
|
{
|
|
if (using_sftp) {
|
|
sfree(scp_sftp_remotepath);
|
|
return 0;
|
|
} else {
|
|
backend_send(backend, "E\n", 2);
|
|
return response();
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Yes, I know; I have an scp_sink_setup _and_ an scp_sink_init.
|
|
* That's bad. The difference is that scp_sink_setup is called once
|
|
* right at the start, whereas scp_sink_init is called to
|
|
* initialise every level of recursion in the protocol.
|
|
*/
|
|
int scp_sink_setup(const char *source, bool preserve, bool recursive)
|
|
{
|
|
if (using_sftp) {
|
|
char *newsource;
|
|
|
|
if (!fxp_init()) {
|
|
tell_user(stderr, "unable to initialise SFTP: %s", fxp_error());
|
|
errs++;
|
|
return 1;
|
|
}
|
|
/*
|
|
* It's possible that the source string we've been given
|
|
* contains a wildcard. If so, we must split the directory
|
|
* away from the wildcard itself (throwing an error if any
|
|
* wildcardness comes before the final slash) and arrange
|
|
* things so that a dirstack entry will be set up.
|
|
*/
|
|
newsource = snewn(1+strlen(source), char);
|
|
if (!wc_unescape(newsource, source)) {
|
|
/* Yes, here we go; it's a wildcard. Bah. */
|
|
char *dupsource, *lastpart, *dirpart, *wildcard;
|
|
|
|
sfree(newsource);
|
|
|
|
dupsource = dupstr(source);
|
|
lastpart = stripslashes(dupsource, false);
|
|
wildcard = dupstr(lastpart);
|
|
*lastpart = '\0';
|
|
if (*dupsource && dupsource[1]) {
|
|
/*
|
|
* The remains of dupsource are at least two
|
|
* characters long, meaning the pathname wasn't
|
|
* empty or just `/'. Hence, we remove the trailing
|
|
* slash.
|
|
*/
|
|
lastpart[-1] = '\0';
|
|
} else if (!*dupsource) {
|
|
/*
|
|
* The remains of dupsource are _empty_ - the whole
|
|
* pathname was a wildcard. Hence we need to
|
|
* replace it with ".".
|
|
*/
|
|
sfree(dupsource);
|
|
dupsource = dupstr(".");
|
|
}
|
|
|
|
/*
|
|
* Now we have separated our string into dupsource (the
|
|
* directory part) and wildcard. Both of these will
|
|
* need freeing at some point. Next step is to remove
|
|
* wildcard escapes from the directory part, throwing
|
|
* an error if it contains a real wildcard.
|
|
*/
|
|
dirpart = snewn(1+strlen(dupsource), char);
|
|
if (!wc_unescape(dirpart, dupsource)) {
|
|
tell_user(stderr, "%s: multiple-level wildcards unsupported",
|
|
source);
|
|
errs++;
|
|
sfree(dirpart);
|
|
sfree(wildcard);
|
|
sfree(dupsource);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Now we have dirpart (unescaped, ie a valid remote
|
|
* path), and wildcard (a wildcard). This will be
|
|
* sufficient to arrange a dirstack entry.
|
|
*/
|
|
scp_sftp_remotepath = dirpart;
|
|
scp_sftp_wildcard = wildcard;
|
|
sfree(dupsource);
|
|
} else {
|
|
scp_sftp_remotepath = newsource;
|
|
scp_sftp_wildcard = NULL;
|
|
}
|
|
scp_sftp_preserve = preserve;
|
|
scp_sftp_recursive = recursive;
|
|
scp_sftp_donethistarget = false;
|
|
scp_sftp_dirstack_head = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int scp_sink_init(void)
|
|
{
|
|
if (!using_sftp) {
|
|
backend_send(backend, "", 1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define SCP_SINK_FILE 1
|
|
#define SCP_SINK_DIR 2
|
|
#define SCP_SINK_ENDDIR 3
|
|
#define SCP_SINK_RETRY 4 /* not an action; just try again */
|
|
struct scp_sink_action {
|
|
int action; /* FILE, DIR, ENDDIR */
|
|
strbuf *buf; /* will need freeing after use */
|
|
char *name; /* filename or dirname (not ENDDIR) */
|
|
long permissions; /* access permissions (not ENDDIR) */
|
|
uint64_t size; /* file size (not ENDDIR) */
|
|
bool settime; /* true if atime and mtime are filled */
|
|
unsigned long atime, mtime; /* access times for the file */
|
|
};
|
|
|
|
int scp_get_sink_action(struct scp_sink_action *act)
|
|
{
|
|
if (using_sftp) {
|
|
char *fname;
|
|
bool must_free_fname;
|
|
struct fxp_attrs attrs;
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
bool ret;
|
|
|
|
if (!scp_sftp_dirstack_head) {
|
|
if (!scp_sftp_donethistarget) {
|
|
/*
|
|
* Simple case: we are only dealing with one file.
|
|
*/
|
|
fname = scp_sftp_remotepath;
|
|
must_free_fname = false;
|
|
scp_sftp_donethistarget = true;
|
|
} else {
|
|
/*
|
|
* Even simpler case: one file _which we've done_.
|
|
* Return 1 (finished).
|
|
*/
|
|
return 1;
|
|
}
|
|
} else {
|
|
/*
|
|
* We're now in the middle of stepping through a list
|
|
* of names returned from fxp_readdir(); so let's carry
|
|
* on.
|
|
*/
|
|
struct scp_sftp_dirstack *head = scp_sftp_dirstack_head;
|
|
while (head->namepos < head->namelen &&
|
|
(is_dots(head->names[head->namepos].filename) ||
|
|
(head->wildcard &&
|
|
!wc_match(head->wildcard,
|
|
head->names[head->namepos].filename))))
|
|
head->namepos++; /* skip . and .. */
|
|
if (head->namepos < head->namelen) {
|
|
head->matched_something = true;
|
|
fname = dupcat(head->dirpath, "/",
|
|
head->names[head->namepos++].filename);
|
|
must_free_fname = true;
|
|
} else {
|
|
/*
|
|
* We've come to the end of the list; pop it off
|
|
* the stack and return an ENDDIR action (or RETRY
|
|
* if this was a wildcard match).
|
|
*/
|
|
if (head->wildcard) {
|
|
act->action = SCP_SINK_RETRY;
|
|
if (!head->matched_something) {
|
|
tell_user(stderr, "pscp: wildcard '%s' matched "
|
|
"no files", head->wildcard);
|
|
errs++;
|
|
}
|
|
sfree(head->wildcard);
|
|
|
|
} else {
|
|
act->action = SCP_SINK_ENDDIR;
|
|
}
|
|
|
|
sfree(head->dirpath);
|
|
sfree(head->names);
|
|
scp_sftp_dirstack_head = head->next;
|
|
sfree(head);
|
|
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Now we have a filename. Stat it, and see if it's a file
|
|
* or a directory.
|
|
*/
|
|
req = fxp_stat_send(fname);
|
|
pktin = sftp_wait_for_reply(req);
|
|
ret = fxp_stat_recv(pktin, req, &attrs);
|
|
|
|
if (!ret || !(attrs.flags & SSH_FILEXFER_ATTR_PERMISSIONS)) {
|
|
with_stripctrl(san, fname)
|
|
tell_user(stderr, "unable to identify %s: %s", san,
|
|
ret ? "file type not supplied" : fxp_error());
|
|
if (must_free_fname) sfree(fname);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
|
|
if (attrs.permissions & 0040000) {
|
|
struct scp_sftp_dirstack *newitem;
|
|
struct fxp_handle *dirhandle;
|
|
size_t nnames, namesize;
|
|
struct fxp_name *ournames;
|
|
struct fxp_names *names;
|
|
|
|
/*
|
|
* It's a directory. If we're not in recursive mode,
|
|
* this merits a complaint (which is fatal if the name
|
|
* was specified directly, but not if it was matched by
|
|
* a wildcard).
|
|
*
|
|
* We skip this complaint completely if
|
|
* scp_sftp_wildcard is set, because that's an
|
|
* indication that we're not actually supposed to
|
|
* _recursively_ transfer the dir, just scan it for
|
|
* things matching the wildcard.
|
|
*/
|
|
if (!scp_sftp_recursive && !scp_sftp_wildcard) {
|
|
with_stripctrl(san, fname)
|
|
tell_user(stderr, "pscp: %s: is a directory", san);
|
|
errs++;
|
|
if (must_free_fname) sfree(fname);
|
|
if (scp_sftp_dirstack_head) {
|
|
act->action = SCP_SINK_RETRY;
|
|
return 0;
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Otherwise, the fun begins. We must fxp_opendir() the
|
|
* directory, slurp the filenames into memory, return
|
|
* SCP_SINK_DIR (unless this is a wildcard match), and
|
|
* set targetisdir. The next time we're called, we will
|
|
* run through the list of filenames one by one,
|
|
* matching them against a wildcard if present.
|
|
*
|
|
* If targetisdir is _already_ set (meaning we're
|
|
* already in the middle of going through another such
|
|
* list), we must push the other (target,namelist) pair
|
|
* on a stack.
|
|
*/
|
|
req = fxp_opendir_send(fname);
|
|
pktin = sftp_wait_for_reply(req);
|
|
dirhandle = fxp_opendir_recv(pktin, req);
|
|
|
|
if (!dirhandle) {
|
|
with_stripctrl(san, fname)
|
|
tell_user(stderr, "pscp: unable to open directory %s: %s",
|
|
san, fxp_error());
|
|
if (must_free_fname) sfree(fname);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
nnames = namesize = 0;
|
|
ournames = NULL;
|
|
while (1) {
|
|
int i;
|
|
|
|
req = fxp_readdir_send(dirhandle);
|
|
pktin = sftp_wait_for_reply(req);
|
|
names = fxp_readdir_recv(pktin, req);
|
|
|
|
if (names == NULL) {
|
|
if (fxp_error_type() == SSH_FX_EOF)
|
|
break;
|
|
with_stripctrl(san, fname)
|
|
tell_user(stderr, "pscp: reading directory %s: %s",
|
|
san, fxp_error());
|
|
|
|
req = fxp_close_send(dirhandle);
|
|
pktin = sftp_wait_for_reply(req);
|
|
fxp_close_recv(pktin, req);
|
|
|
|
if (must_free_fname) sfree(fname);
|
|
sfree(ournames);
|
|
errs++;
|
|
return 1;
|
|
}
|
|
if (names->nnames == 0) {
|
|
fxp_free_names(names);
|
|
break;
|
|
}
|
|
sgrowarrayn(ournames, namesize, nnames, names->nnames);
|
|
for (i = 0; i < names->nnames; i++) {
|
|
if (!strcmp(names->names[i].filename, ".") ||
|
|
!strcmp(names->names[i].filename, "..")) {
|
|
/*
|
|
* . and .. are normal consequences of
|
|
* reading a directory, and aren't worth
|
|
* complaining about.
|
|
*/
|
|
} else if (!vet_filename(names->names[i].filename)) {
|
|
with_stripctrl(san, names->names[i].filename)
|
|
tell_user(stderr, "ignoring potentially dangerous "
|
|
"server-supplied filename '%s'", san);
|
|
} else
|
|
ournames[nnames++] = names->names[i];
|
|
}
|
|
names->nnames = 0; /* prevent free_names */
|
|
fxp_free_names(names);
|
|
}
|
|
req = fxp_close_send(dirhandle);
|
|
pktin = sftp_wait_for_reply(req);
|
|
fxp_close_recv(pktin, req);
|
|
|
|
newitem = snew(struct scp_sftp_dirstack);
|
|
newitem->next = scp_sftp_dirstack_head;
|
|
newitem->names = ournames;
|
|
newitem->namepos = 0;
|
|
newitem->namelen = nnames;
|
|
if (must_free_fname)
|
|
newitem->dirpath = fname;
|
|
else
|
|
newitem->dirpath = dupstr(fname);
|
|
if (scp_sftp_wildcard) {
|
|
newitem->wildcard = scp_sftp_wildcard;
|
|
newitem->matched_something = false;
|
|
scp_sftp_wildcard = NULL;
|
|
} else {
|
|
newitem->wildcard = NULL;
|
|
}
|
|
scp_sftp_dirstack_head = newitem;
|
|
|
|
if (newitem->wildcard) {
|
|
act->action = SCP_SINK_RETRY;
|
|
} else {
|
|
act->action = SCP_SINK_DIR;
|
|
strbuf_clear(act->buf);
|
|
put_asciz(act->buf, stripslashes(fname, false));
|
|
act->name = act->buf->s;
|
|
act->size = 0; /* duhh, it's a directory */
|
|
act->permissions = 07777 & attrs.permissions;
|
|
if (scp_sftp_preserve &&
|
|
(attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
|
|
act->atime = attrs.atime;
|
|
act->mtime = attrs.mtime;
|
|
act->settime = true;
|
|
} else
|
|
act->settime = false;
|
|
}
|
|
return 0;
|
|
|
|
} else {
|
|
/*
|
|
* It's a file. Return SCP_SINK_FILE.
|
|
*/
|
|
act->action = SCP_SINK_FILE;
|
|
strbuf_clear(act->buf);
|
|
put_asciz(act->buf, stripslashes(fname, false));
|
|
act->name = act->buf->s;
|
|
if (attrs.flags & SSH_FILEXFER_ATTR_SIZE) {
|
|
act->size = attrs.size;
|
|
} else
|
|
act->size = UINT64_MAX; /* no idea */
|
|
act->permissions = 07777 & attrs.permissions;
|
|
if (scp_sftp_preserve &&
|
|
(attrs.flags & SSH_FILEXFER_ATTR_ACMODTIME)) {
|
|
act->atime = attrs.atime;
|
|
act->mtime = attrs.mtime;
|
|
act->settime = true;
|
|
} else
|
|
act->settime = false;
|
|
if (must_free_fname)
|
|
scp_sftp_currentname = fname;
|
|
else
|
|
scp_sftp_currentname = dupstr(fname);
|
|
return 0;
|
|
}
|
|
|
|
} else {
|
|
bool done = false;
|
|
int action;
|
|
char ch;
|
|
|
|
act->settime = false;
|
|
strbuf_clear(act->buf);
|
|
|
|
while (!done) {
|
|
if (!ssh_scp_recv(&ch, 1))
|
|
return 1;
|
|
if (ch == '\n')
|
|
bump("Protocol error: Unexpected newline");
|
|
action = ch;
|
|
while (1) {
|
|
if (!ssh_scp_recv(&ch, 1))
|
|
bump("Lost connection");
|
|
if (ch == '\n')
|
|
break;
|
|
put_byte(act->buf, ch);
|
|
}
|
|
switch (action) {
|
|
case '\01': /* error */
|
|
with_stripctrl(san, act->buf->s)
|
|
tell_user(stderr, "%s", san);
|
|
errs++;
|
|
continue; /* go round again */
|
|
case '\02': /* fatal error */
|
|
with_stripctrl(san, act->buf->s)
|
|
bump("%s", san);
|
|
case 'E':
|
|
backend_send(backend, "", 1);
|
|
act->action = SCP_SINK_ENDDIR;
|
|
return 0;
|
|
case 'T':
|
|
if (sscanf(act->buf->s, "%lu %*d %lu %*d",
|
|
&act->mtime, &act->atime) == 2) {
|
|
act->settime = true;
|
|
backend_send(backend, "", 1);
|
|
strbuf_clear(act->buf);
|
|
continue; /* go round again */
|
|
}
|
|
bump("Protocol error: Illegal time format");
|
|
case 'C':
|
|
case 'D':
|
|
act->action = (action == 'C' ? SCP_SINK_FILE : SCP_SINK_DIR);
|
|
if (act->action == SCP_SINK_DIR && !recursive) {
|
|
bump("security violation: remote host attempted to create "
|
|
"a subdirectory in a non-recursive copy!");
|
|
}
|
|
break;
|
|
default:
|
|
bump("Protocol error: Expected control record");
|
|
}
|
|
/*
|
|
* We will go round this loop only once, unless we hit
|
|
* `continue' above.
|
|
*/
|
|
done = true;
|
|
}
|
|
|
|
/*
|
|
* If we get here, we must have seen SCP_SINK_FILE or
|
|
* SCP_SINK_DIR.
|
|
*/
|
|
{
|
|
int i;
|
|
if (sscanf(act->buf->s, "%lo %"SCNu64" %n", &act->permissions,
|
|
&act->size, &i) != 2)
|
|
bump("Protocol error: Illegal file descriptor format");
|
|
act->name = act->buf->s + i;
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
int scp_accept_filexfer(void)
|
|
{
|
|
if (using_sftp) {
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
|
|
req = fxp_open_send(scp_sftp_currentname, SSH_FXF_READ, NULL);
|
|
pktin = sftp_wait_for_reply(req);
|
|
scp_sftp_filehandle = fxp_open_recv(pktin, req);
|
|
|
|
if (!scp_sftp_filehandle) {
|
|
with_stripctrl(san, scp_sftp_currentname)
|
|
tell_user(stderr, "pscp: unable to open %s: %s",
|
|
san, fxp_error());
|
|
errs++;
|
|
return 1;
|
|
}
|
|
scp_sftp_fileoffset = 0;
|
|
scp_sftp_xfer = xfer_download_init(scp_sftp_filehandle,
|
|
scp_sftp_fileoffset);
|
|
sfree(scp_sftp_currentname);
|
|
return 0;
|
|
} else {
|
|
backend_send(backend, "", 1);
|
|
return 0; /* can't fail */
|
|
}
|
|
}
|
|
|
|
int scp_recv_filedata(char *data, int len)
|
|
{
|
|
if (using_sftp) {
|
|
struct sftp_packet *pktin;
|
|
int ret, actuallen;
|
|
void *vbuf;
|
|
|
|
xfer_download_queue(scp_sftp_xfer);
|
|
pktin = sftp_recv();
|
|
ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
|
|
if (ret <= 0) {
|
|
tell_user(stderr, "pscp: error while reading: %s", fxp_error());
|
|
if (ret == INT_MIN) /* pktin not even freed */
|
|
sfree(pktin);
|
|
errs++;
|
|
return -1;
|
|
}
|
|
|
|
if (xfer_download_data(scp_sftp_xfer, &vbuf, &actuallen)) {
|
|
if (actuallen <= 0) {
|
|
tell_user(stderr, "pscp: end of file while reading");
|
|
errs++;
|
|
sfree(vbuf);
|
|
return -1;
|
|
}
|
|
/*
|
|
* This assertion relies on the fact that the natural
|
|
* block size used in the xfer manager is at most that
|
|
* used in this module. I don't like crossing layers in
|
|
* this way, but it'll do for now.
|
|
*/
|
|
assert(actuallen <= len);
|
|
memcpy(data, vbuf, actuallen);
|
|
sfree(vbuf);
|
|
} else
|
|
actuallen = 0;
|
|
|
|
scp_sftp_fileoffset += actuallen;
|
|
|
|
return actuallen;
|
|
} else {
|
|
return ssh_scp_recv(data, len) ? len : 0;
|
|
}
|
|
}
|
|
|
|
int scp_finish_filerecv(void)
|
|
{
|
|
if (using_sftp) {
|
|
struct sftp_packet *pktin;
|
|
struct sftp_request *req;
|
|
|
|
/*
|
|
* Ensure that xfer_done() will work correctly, so we can
|
|
* clean up any outstanding requests from the file
|
|
* transfer.
|
|
*/
|
|
xfer_set_error(scp_sftp_xfer);
|
|
while (!xfer_done(scp_sftp_xfer)) {
|
|
void *vbuf;
|
|
int ret, len;
|
|
|
|
pktin = sftp_recv();
|
|
ret = xfer_download_gotpkt(scp_sftp_xfer, pktin);
|
|
if (ret <= 0) {
|
|
tell_user(stderr, "pscp: error while reading: %s", fxp_error());
|
|
if (ret == INT_MIN) /* pktin not even freed */
|
|
sfree(pktin);
|
|
errs++;
|
|
return -1;
|
|
}
|
|
if (xfer_download_data(scp_sftp_xfer, &vbuf, &len))
|
|
sfree(vbuf);
|
|
}
|
|
xfer_cleanup(scp_sftp_xfer);
|
|
|
|
req = fxp_close_send(scp_sftp_filehandle);
|
|
pktin = sftp_wait_for_reply(req);
|
|
fxp_close_recv(pktin, req);
|
|
return 0;
|
|
} else {
|
|
backend_send(backend, "", 1);
|
|
return response();
|
|
}
|
|
}
|
|
|
|
/* ----------------------------------------------------------------------
|
|
* Send an error message to the other side and to the screen.
|
|
* Increment error counter.
|
|
*/
|
|
static PRINTF_LIKE(1, 2) void run_err(const char *fmt, ...)
|
|
{
|
|
char *str, *str2;
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
errs++;
|
|
str = dupvprintf(fmt, ap);
|
|
str2 = dupcat("pscp: ", str, "\n");
|
|
sfree(str);
|
|
scp_send_errmsg(str2);
|
|
abandon_stats();
|
|
tell_user(stderr, "%s", str2);
|
|
va_end(ap);
|
|
sfree(str2);
|
|
}
|
|
|
|
/*
|
|
* Execute the source part of the SCP protocol.
|
|
*/
|
|
static void source(const char *src)
|
|
{
|
|
uint64_t size;
|
|
unsigned long mtime, atime;
|
|
long permissions;
|
|
const char *last;
|
|
RFile *f;
|
|
int attr;
|
|
uint64_t i;
|
|
uint64_t stat_bytes;
|
|
time_t stat_starttime, stat_lasttime;
|
|
|
|
attr = file_type(src);
|
|
if (attr == FILE_TYPE_NONEXISTENT ||
|
|
attr == FILE_TYPE_WEIRD) {
|
|
run_err("%s: %s file or directory", src,
|
|
(attr == FILE_TYPE_WEIRD ? "Not a" : "No such"));
|
|
return;
|
|
}
|
|
|
|
if (attr == FILE_TYPE_DIRECTORY) {
|
|
if (recursive) {
|
|
/*
|
|
* Avoid . and .. directories.
|
|
*/
|
|
const char *p;
|
|
p = strrchr(src, '/');
|
|
if (!p)
|
|
p = strrchr(src, '\\');
|
|
if (!p)
|
|
p = src;
|
|
else
|
|
p++;
|
|
if (!strcmp(p, ".") || !strcmp(p, ".."))
|
|
/* skip . and .. */ ;
|
|
else
|
|
rsource(src);
|
|
} else {
|
|
run_err("%s: not a regular file", src);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if ((last = strrchr(src, '/')) == NULL)
|
|
last = src;
|
|
else
|
|
last++;
|
|
if (strrchr(last, '\\') != NULL)
|
|
last = strrchr(last, '\\') + 1;
|
|
if (last == src && strchr(src, ':') != NULL)
|
|
last = strchr(src, ':') + 1;
|
|
|
|
f = open_existing_file(src, &size, &mtime, &atime, &permissions);
|
|
if (f == NULL) {
|
|
run_err("%s: Cannot open file", src);
|
|
return;
|
|
}
|
|
if (preserve) {
|
|
if (scp_send_filetimes(mtime, atime)) {
|
|
close_rfile(f);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (verbose) {
|
|
tell_user(stderr, "Sending file %s, size=%"PRIu64, last, size);
|
|
}
|
|
if (scp_send_filename(last, size, permissions)) {
|
|
close_rfile(f);
|
|
return;
|
|
}
|
|
|
|
stat_bytes = 0;
|
|
stat_starttime = time(NULL);
|
|
stat_lasttime = 0;
|
|
|
|
#define PSCP_SEND_BLOCK 4096
|
|
for (i = 0; i < size; i += PSCP_SEND_BLOCK) {
|
|
char transbuf[PSCP_SEND_BLOCK];
|
|
int j, k = PSCP_SEND_BLOCK;
|
|
|
|
if (i + k > size)
|
|
k = size - i;
|
|
if ((j = read_from_file(f, transbuf, k)) != k) {
|
|
bump("%s: Read error", src);
|
|
}
|
|
if (scp_send_filedata(transbuf, k))
|
|
bump("%s: Network error occurred", src);
|
|
|
|
if (statistics) {
|
|
stat_bytes += k;
|
|
if (time(NULL) != stat_lasttime || i + k == size) {
|
|
stat_lasttime = time(NULL);
|
|
print_stats(last, size, stat_bytes,
|
|
stat_starttime, stat_lasttime);
|
|
}
|
|
}
|
|
|
|
}
|
|
close_rfile(f);
|
|
|
|
(void) scp_send_finish();
|
|
}
|
|
|
|
/*
|
|
* Recursively send the contents of a directory.
|
|
*/
|
|
static void rsource(const char *src)
|
|
{
|
|
const char *last;
|
|
char *save_target;
|
|
DirHandle *dir;
|
|
|
|
if ((last = strrchr(src, '/')) == NULL)
|
|
last = src;
|
|
else
|
|
last++;
|
|
if (strrchr(last, '\\') != NULL)
|
|
last = strrchr(last, '\\') + 1;
|
|
if (last == src && strchr(src, ':') != NULL)
|
|
last = strchr(src, ':') + 1;
|
|
|
|
/* maybe send filetime */
|
|
|
|
save_target = scp_save_remotepath();
|
|
|
|
if (verbose)
|
|
tell_user(stderr, "Entering directory: %s", last);
|
|
if (scp_send_dirname(last, 0755))
|
|
return;
|
|
|
|
const char *opendir_err;
|
|
dir = open_directory(src, &opendir_err);
|
|
if (dir != NULL) {
|
|
char *filename;
|
|
while ((filename = read_filename(dir)) != NULL) {
|
|
char *foundfile = dupcat(src, "/", filename);
|
|
source(foundfile);
|
|
sfree(foundfile);
|
|
sfree(filename);
|
|
}
|
|
close_directory(dir);
|
|
} else {
|
|
tell_user(stderr, "Error opening directory %s: %s", src, opendir_err);
|
|
}
|
|
|
|
(void) scp_send_enddir();
|
|
|
|
scp_restore_remotepath(save_target);
|
|
}
|
|
|
|
/*
|
|
* Execute the sink part of the SCP protocol.
|
|
*/
|
|
static void sink(const char *targ, const char *src)
|
|
{
|
|
char *destfname;
|
|
bool targisdir = false;
|
|
bool exists;
|
|
int attr;
|
|
WFile *f;
|
|
uint64_t received;
|
|
bool wrerror = false;
|
|
uint64_t stat_bytes;
|
|
time_t stat_starttime, stat_lasttime;
|
|
char *stat_name;
|
|
|
|
attr = file_type(targ);
|
|
if (attr == FILE_TYPE_DIRECTORY)
|
|
targisdir = true;
|
|
|
|
if (targetshouldbedirectory && !targisdir)
|
|
bump("%s: Not a directory", targ);
|
|
|
|
scp_sink_init();
|
|
|
|
struct scp_sink_action act;
|
|
act.buf = strbuf_new();
|
|
|
|
while (1) {
|
|
|
|
if (scp_get_sink_action(&act))
|
|
goto out;
|
|
|
|
if (act.action == SCP_SINK_ENDDIR)
|
|
goto out;
|
|
|
|
if (act.action == SCP_SINK_RETRY)
|
|
continue;
|
|
|
|
if (targisdir) {
|
|
/*
|
|
* Prevent the remote side from maliciously writing to
|
|
* files outside the target area by sending a filename
|
|
* containing `../'. In fact, it shouldn't be sending
|
|
* filenames with any slashes or colons in at all; so
|
|
* we'll find the last slash, backslash or colon in the
|
|
* filename and use only the part after that. (And
|
|
* warn!)
|
|
*
|
|
* In addition, we also ensure here that if we're
|
|
* copying a single file and the target is a directory
|
|
* (common usage: `pscp host:filename .') the remote
|
|
* can't send us a _different_ file name. We can
|
|
* distinguish this case because `src' will be non-NULL
|
|
* and the last component of that will fail to match
|
|
* (the last component of) the name sent.
|
|
*
|
|
* Well, not always; if `src' is a wildcard, we do
|
|
* expect to get back filenames that don't correspond
|
|
* exactly to it. Ideally in this case, we would like
|
|
* to ensure that the returned filename actually
|
|
* matches the wildcard pattern - but one of SCP's
|
|
* protocol infelicities is that wildcard matching is
|
|
* done at the server end _by the server's rules_ and
|
|
* so in general this is infeasible. Hence, we only
|
|
* accept filenames that don't correspond to `src' if
|
|
* unsafe mode is enabled or we are using SFTP (which
|
|
* resolves remote wildcards on the client side and can
|
|
* be trusted).
|
|
*/
|
|
char *striptarget, *stripsrc;
|
|
|
|
striptarget = stripslashes(act.name, true);
|
|
if (striptarget != act.name) {
|
|
with_stripctrl(sanname, act.name) {
|
|
with_stripctrl(santarg, act.name) {
|
|
tell_user(stderr, "warning: remote host sent a"
|
|
" compound pathname '%s'", sanname);
|
|
tell_user(stderr, " renaming local"
|
|
" file to '%s'", santarg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Also check to see if the target filename is '.' or
|
|
* '..', or indeed '...' and so on because Windows
|
|
* appears to interpret those like '..'.
|
|
*/
|
|
if (is_dots(striptarget)) {
|
|
bump("security violation: remote host attempted to write to"
|
|
" a '.' or '..' path!");
|
|
}
|
|
|
|
if (src) {
|
|
stripsrc = stripslashes(src, true);
|
|
if (strcmp(striptarget, stripsrc) &&
|
|
!using_sftp && !scp_unsafe_mode) {
|
|
with_stripctrl(san, striptarget)
|
|
tell_user(stderr, "warning: remote host tried to "
|
|
"write to a file called '%s'", san);
|
|
tell_user(stderr, " when we requested a file "
|
|
"called '%s'.", stripsrc);
|
|
tell_user(stderr, " If this is a wildcard, "
|
|
"consider upgrading to SSH-2 or using");
|
|
tell_user(stderr, " the '-unsafe' option. Renaming"
|
|
" of this file has been disallowed.");
|
|
/* Override the name the server provided with our own. */
|
|
striptarget = stripsrc;
|
|
}
|
|
}
|
|
|
|
if (targ[0] != '\0')
|
|
destfname = dir_file_cat(targ, striptarget);
|
|
else
|
|
destfname = dupstr(striptarget);
|
|
} else {
|
|
/*
|
|
* In this branch of the if, the target area is a
|
|
* single file with an explicitly specified name in any
|
|
* case, so there's no danger.
|
|
*/
|
|
destfname = dupstr(targ);
|
|
}
|
|
attr = file_type(destfname);
|
|
exists = (attr != FILE_TYPE_NONEXISTENT);
|
|
|
|
if (act.action == SCP_SINK_DIR) {
|
|
if (exists && attr != FILE_TYPE_DIRECTORY) {
|
|
with_stripctrl(san, destfname)
|
|
run_err("%s: Not a directory", san);
|
|
sfree(destfname);
|
|
continue;
|
|
}
|
|
if (!exists) {
|
|
if (!create_directory(destfname)) {
|
|
with_stripctrl(san, destfname)
|
|
run_err("%s: Cannot create directory", san);
|
|
sfree(destfname);
|
|
continue;
|
|
}
|
|
}
|
|
sink(destfname, NULL);
|
|
/* can we set the timestamp for directories ? */
|
|
sfree(destfname);
|
|
continue;
|
|
}
|
|
|
|
f = open_new_file(destfname, act.permissions);
|
|
if (f == NULL) {
|
|
with_stripctrl(san, destfname)
|
|
run_err("%s: Cannot create file", san);
|
|
sfree(destfname);
|
|
continue;
|
|
}
|
|
|
|
if (scp_accept_filexfer()) {
|
|
sfree(destfname);
|
|
close_wfile(f);
|
|
goto out;
|
|
}
|
|
|
|
stat_bytes = 0;
|
|
stat_starttime = time(NULL);
|
|
stat_lasttime = 0;
|
|
stat_name = stripctrl_string(
|
|
string_scc, stripslashes(destfname, true));
|
|
|
|
received = 0;
|
|
while (received < act.size) {
|
|
char transbuf[32768];
|
|
uint64_t blksize;
|
|
int read;
|
|
blksize = 32768;
|
|
if (blksize > act.size - received)
|
|
blksize = act.size - received;
|
|
read = scp_recv_filedata(transbuf, (int)blksize);
|
|
if (read <= 0)
|
|
bump("Lost connection");
|
|
if (wrerror) {
|
|
received += read;
|
|
continue;
|
|
}
|
|
if (write_to_file(f, transbuf, read) != (int)read) {
|
|
wrerror = true;
|
|
/* FIXME: in sftp we can actually abort the transfer */
|
|
if (statistics)
|
|
printf("\r%-25.25s | %50s\n",
|
|
stat_name,
|
|
"Write error.. waiting for end of file");
|
|
received += read;
|
|
continue;
|
|
}
|
|
if (statistics) {
|
|
stat_bytes += read;
|
|
if (time(NULL) > stat_lasttime ||
|
|
received + read == act.size) {
|
|
stat_lasttime = time(NULL);
|
|
print_stats(stat_name, act.size, stat_bytes,
|
|
stat_starttime, stat_lasttime);
|
|
}
|
|
}
|
|
received += read;
|
|
}
|
|
if (act.settime) {
|
|
set_file_times(f, act.mtime, act.atime);
|
|
}
|
|
|
|
close_wfile(f);
|
|
if (wrerror) {
|
|
with_stripctrl(san, destfname)
|
|
run_err("%s: Write error", san);
|
|
sfree(destfname);
|
|
continue;
|
|
}
|
|
(void) scp_finish_filerecv();
|
|
sfree(stat_name);
|
|
sfree(destfname);
|
|
}
|
|
out:
|
|
strbuf_free(act.buf);
|
|
}
|
|
|
|
/*
|
|
* We will copy local files to a remote server.
|
|
*/
|
|
static void toremote(int argc, char *argv[])
|
|
{
|
|
char *src, *wtarg, *host, *user;
|
|
const char *targ;
|
|
char *cmd;
|
|
int i, wc_type;
|
|
|
|
uploading = true;
|
|
|
|
wtarg = argv[argc - 1];
|
|
|
|
/* Separate host from filename */
|
|
host = wtarg;
|
|
wtarg = colon(wtarg);
|
|
if (wtarg == NULL)
|
|
bump("wtarg == NULL in toremote()");
|
|
*wtarg++ = '\0';
|
|
/* Substitute "." for empty target */
|
|
if (*wtarg == '\0')
|
|
targ = ".";
|
|
else
|
|
targ = wtarg;
|
|
|
|
/* Separate host and username */
|
|
user = host;
|
|
host = strrchr(host, '@');
|
|
if (host == NULL) {
|
|
host = user;
|
|
user = NULL;
|
|
} else {
|
|
*host++ = '\0';
|
|
if (*user == '\0')
|
|
user = NULL;
|
|
}
|
|
|
|
if (argc == 2) {
|
|
if (colon(argv[0]) != NULL)
|
|
bump("%s: Remote to remote not supported", argv[0]);
|
|
|
|
wc_type = test_wildcard(argv[0], true);
|
|
if (wc_type == WCTYPE_NONEXISTENT)
|
|
bump("%s: No such file or directory\n", argv[0]);
|
|
else if (wc_type == WCTYPE_WILDCARD)
|
|
targetshouldbedirectory = true;
|
|
}
|
|
|
|
cmd = dupprintf("scp%s%s%s%s -t %s",
|
|
verbose ? " -v" : "",
|
|
recursive ? " -r" : "",
|
|
preserve ? " -p" : "",
|
|
targetshouldbedirectory ? " -d" : "", targ);
|
|
do_cmd(host, user, cmd);
|
|
sfree(cmd);
|
|
|
|
if (scp_source_setup(targ, targetshouldbedirectory))
|
|
return;
|
|
|
|
for (i = 0; i < argc - 1; i++) {
|
|
src = argv[i];
|
|
if (colon(src) != NULL) {
|
|
tell_user(stderr, "%s: Remote to remote not supported\n", src);
|
|
errs++;
|
|
continue;
|
|
}
|
|
|
|
wc_type = test_wildcard(src, true);
|
|
if (wc_type == WCTYPE_NONEXISTENT) {
|
|
run_err("%s: No such file or directory", src);
|
|
continue;
|
|
} else if (wc_type == WCTYPE_FILENAME) {
|
|
source(src);
|
|
continue;
|
|
} else {
|
|
WildcardMatcher *wc;
|
|
char *filename;
|
|
|
|
wc = begin_wildcard_matching(src);
|
|
if (wc == NULL) {
|
|
run_err("%s: No such file or directory", src);
|
|
continue;
|
|
}
|
|
|
|
while ((filename = wildcard_get_filename(wc)) != NULL) {
|
|
source(filename);
|
|
sfree(filename);
|
|
}
|
|
|
|
finish_wildcard_matching(wc);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We will copy files from a remote server to the local machine.
|
|
*/
|
|
static void tolocal(int argc, char *argv[])
|
|
{
|
|
char *wsrc, *host, *user;
|
|
const char *src, *targ;
|
|
char *cmd;
|
|
|
|
uploading = false;
|
|
|
|
if (argc != 2)
|
|
bump("More than one remote source not supported");
|
|
|
|
wsrc = argv[0];
|
|
targ = argv[1];
|
|
|
|
/* Separate host from filename */
|
|
host = wsrc;
|
|
wsrc = colon(wsrc);
|
|
if (wsrc == NULL)
|
|
bump("Local to local copy not supported");
|
|
*wsrc++ = '\0';
|
|
/* Substitute "." for empty filename */
|
|
if (*wsrc == '\0')
|
|
src = ".";
|
|
else
|
|
src = wsrc;
|
|
|
|
/* Separate username and hostname */
|
|
user = host;
|
|
host = strrchr(host, '@');
|
|
if (host == NULL) {
|
|
host = user;
|
|
user = NULL;
|
|
} else {
|
|
*host++ = '\0';
|
|
if (*user == '\0')
|
|
user = NULL;
|
|
}
|
|
|
|
cmd = dupprintf("scp%s%s%s%s -f %s",
|
|
verbose ? " -v" : "",
|
|
recursive ? " -r" : "",
|
|
preserve ? " -p" : "",
|
|
targetshouldbedirectory ? " -d" : "", src);
|
|
do_cmd(host, user, cmd);
|
|
sfree(cmd);
|
|
|
|
if (scp_sink_setup(src, preserve, recursive))
|
|
return;
|
|
|
|
sink(targ, src);
|
|
}
|
|
|
|
/*
|
|
* We will issue a list command to get a remote directory.
|
|
*/
|
|
static void get_dir_list(int argc, char *argv[])
|
|
{
|
|
char *wsrc, *host, *user;
|
|
const char *src;
|
|
char *cmd, *p;
|
|
const char *q;
|
|
char c;
|
|
|
|
wsrc = argv[0];
|
|
|
|
/* Separate host from filename */
|
|
host = wsrc;
|
|
wsrc = colon(wsrc);
|
|
if (wsrc == NULL)
|
|
bump("Local file listing not supported");
|
|
*wsrc++ = '\0';
|
|
/* Substitute "." for empty filename */
|
|
if (*wsrc == '\0')
|
|
src = ".";
|
|
else
|
|
src = wsrc;
|
|
|
|
/* Separate username and hostname */
|
|
user = host;
|
|
host = strrchr(host, '@');
|
|
if (host == NULL) {
|
|
host = user;
|
|
user = NULL;
|
|
} else {
|
|
*host++ = '\0';
|
|
if (*user == '\0')
|
|
user = NULL;
|
|
}
|
|
|
|
cmd = snewn(4 * strlen(src) + 100, char);
|
|
strcpy(cmd, "ls -la '");
|
|
p = cmd + strlen(cmd);
|
|
for (q = src; *q; q++) {
|
|
if (*q == '\'') {
|
|
*p++ = '\'';
|
|
*p++ = '\\';
|
|
*p++ = '\'';
|
|
*p++ = '\'';
|
|
} else {
|
|
*p++ = *q;
|
|
}
|
|
}
|
|
*p++ = '\'';
|
|
*p = '\0';
|
|
|
|
do_cmd(host, user, cmd);
|
|
sfree(cmd);
|
|
|
|
if (using_sftp) {
|
|
scp_sftp_listdir(src);
|
|
} else {
|
|
stdio_sink ss;
|
|
stdio_sink_init(&ss, stdout);
|
|
StripCtrlChars *scc = stripctrl_new(
|
|
BinarySink_UPCAST(&ss), false, L'\0');
|
|
while (ssh_scp_recv(&c, 1))
|
|
put_byte(scc, c);
|
|
stripctrl_free(scc);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Short description of parameters.
|
|
*/
|
|
static void usage(void)
|
|
{
|
|
printf("PuTTY Secure Copy client\n");
|
|
printf("%s\n", ver);
|
|
printf("Usage: pscp [options] [user@]host:source target\n");
|
|
printf
|
|
(" pscp [options] source [source...] [user@]host:target\n");
|
|
printf(" pscp [options] -ls [user@]host:filespec\n");
|
|
printf("Options:\n");
|
|
printf(" -V print version information and exit\n");
|
|
printf(" -pgpfp print PGP key fingerprints and exit\n");
|
|
printf(" -p preserve file attributes\n");
|
|
printf(" -q quiet, don't show statistics\n");
|
|
printf(" -r copy directories recursively\n");
|
|
printf(" -v show verbose messages\n");
|
|
printf(" -load sessname Load settings from saved session\n");
|
|
printf(" -P port connect to specified port\n");
|
|
printf(" -l user connect with specified username\n");
|
|
printf(" -pw passw login with specified password\n");
|
|
printf(" -1 -2 force use of particular SSH protocol version\n");
|
|
printf(" -4 -6 force use of IPv4 or IPv6\n");
|
|
printf(" -C enable compression\n");
|
|
printf(" -i key private key file for user authentication\n");
|
|
printf(" -noagent disable use of Pageant\n");
|
|
printf(" -agent enable use of Pageant\n");
|
|
printf(" -hostkey aa:bb:cc:...\n");
|
|
printf(" manually specify a host key (may be repeated)\n");
|
|
printf(" -batch disable all interactive prompts\n");
|
|
printf(" -no-sanitise-stderr don't strip control chars from"
|
|
" standard error\n");
|
|
printf(" -proxycmd command\n");
|
|
printf(" use 'command' as local proxy\n");
|
|
printf(" -unsafe allow server-side wildcards (DANGEROUS)\n");
|
|
printf(" -sftp force use of SFTP protocol\n");
|
|
printf(" -scp force use of SCP protocol\n");
|
|
printf(" -sshlog file\n");
|
|
printf(" -sshrawlog file\n");
|
|
printf(" log protocol details to a file\n");
|
|
cleanup_exit(1);
|
|
}
|
|
|
|
void version(void)
|
|
{
|
|
char *buildinfo_text = buildinfo("\n");
|
|
printf("pscp: %s\n%s\n", ver, buildinfo_text);
|
|
sfree(buildinfo_text);
|
|
exit(0);
|
|
}
|
|
|
|
void cmdline_error(const char *p, ...)
|
|
{
|
|
va_list ap;
|
|
fprintf(stderr, "pscp: ");
|
|
va_start(ap, p);
|
|
vfprintf(stderr, p, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, "\n try typing just \"pscp\" for help\n");
|
|
exit(1);
|
|
}
|
|
|
|
const bool share_can_be_downstream = true;
|
|
const bool share_can_be_upstream = false;
|
|
|
|
static stdio_sink stderr_ss;
|
|
static StripCtrlChars *stderr_scc;
|
|
|
|
/*
|
|
* Main program. (Called `psftp_main' because it gets called from
|
|
* *sftp.c; bit silly, I know, but it had to be called _something_.)
|
|
*/
|
|
int psftp_main(int argc, char *argv[])
|
|
{
|
|
int i;
|
|
bool sanitise_stderr = true;
|
|
|
|
default_protocol = PROT_SSH;
|
|
|
|
flags = 0
|
|
#ifdef FLAG_SYNCAGENT
|
|
| FLAG_SYNCAGENT
|
|
#endif
|
|
;
|
|
cmdline_tooltype = TOOLTYPE_FILETRANSFER;
|
|
sk_init();
|
|
|
|
/* Load Default Settings before doing anything else. */
|
|
conf = conf_new();
|
|
do_defaults(NULL, conf);
|
|
loaded_session = false;
|
|
|
|
for (i = 1; i < argc; i++) {
|
|
int ret;
|
|
if (argv[i][0] != '-')
|
|
break;
|
|
ret = cmdline_process_param(argv[i], i+1<argc?argv[i+1]:NULL, 1, conf);
|
|
if (ret == -2) {
|
|
cmdline_error("option \"%s\" requires an argument", argv[i]);
|
|
} else if (ret == 2) {
|
|
i++; /* skip next argument */
|
|
} else if (ret == 1) {
|
|
/* We have our own verbosity in addition to `flags'. */
|
|
if (flags & FLAG_VERBOSE)
|
|
verbose = true;
|
|
} else if (strcmp(argv[i], "-pgpfp") == 0) {
|
|
pgp_fingerprints();
|
|
return 1;
|
|
} else if (strcmp(argv[i], "-r") == 0) {
|
|
recursive = true;
|
|
} else if (strcmp(argv[i], "-p") == 0) {
|
|
preserve = true;
|
|
} else if (strcmp(argv[i], "-q") == 0) {
|
|
statistics = false;
|
|
} else if (strcmp(argv[i], "-h") == 0 ||
|
|
strcmp(argv[i], "-?") == 0 ||
|
|
strcmp(argv[i], "--help") == 0) {
|
|
usage();
|
|
} else if (strcmp(argv[i], "-V") == 0 ||
|
|
strcmp(argv[i], "--version") == 0) {
|
|
version();
|
|
} else if (strcmp(argv[i], "-ls") == 0) {
|
|
list = true;
|
|
} else if (strcmp(argv[i], "-batch") == 0) {
|
|
console_batch_mode = true;
|
|
} else if (strcmp(argv[i], "-unsafe") == 0) {
|
|
scp_unsafe_mode = true;
|
|
} else if (strcmp(argv[i], "-sftp") == 0) {
|
|
try_scp = false; try_sftp = true;
|
|
} else if (strcmp(argv[i], "-scp") == 0) {
|
|
try_scp = true; try_sftp = false;
|
|
} else if (strcmp(argv[i], "-sanitise-stderr") == 0) {
|
|
sanitise_stderr = true;
|
|
} else if (strcmp(argv[i], "-no-sanitise-stderr") == 0) {
|
|
sanitise_stderr = false;
|
|
} else if (strcmp(argv[i], "--") == 0) {
|
|
i++;
|
|
break;
|
|
} else {
|
|
cmdline_error("unknown option \"%s\"", argv[i]);
|
|
}
|
|
}
|
|
argc -= i;
|
|
argv += i;
|
|
backend = NULL;
|
|
|
|
stdio_sink_init(&stderr_ss, stderr);
|
|
stderr_bs = BinarySink_UPCAST(&stderr_ss);
|
|
if (sanitise_stderr) {
|
|
stderr_scc = stripctrl_new(stderr_bs, false, L'\0');
|
|
stderr_bs = BinarySink_UPCAST(stderr_scc);
|
|
}
|
|
|
|
string_scc = stripctrl_new(NULL, false, L'\0');
|
|
|
|
if (list) {
|
|
if (argc != 1)
|
|
usage();
|
|
get_dir_list(argc, argv);
|
|
|
|
} else {
|
|
|
|
if (argc < 2)
|
|
usage();
|
|
if (argc > 2)
|
|
targetshouldbedirectory = true;
|
|
|
|
if (colon(argv[argc - 1]) != NULL)
|
|
toremote(argc, argv);
|
|
else
|
|
tolocal(argc, argv);
|
|
}
|
|
|
|
if (backend && backend_connected(backend)) {
|
|
char ch;
|
|
backend_special(backend, SS_EOF, 0);
|
|
sent_eof = true;
|
|
ssh_scp_recv(&ch, 1);
|
|
}
|
|
random_save_seed();
|
|
|
|
cmdline_cleanup();
|
|
if (backend) {
|
|
backend_free(backend);
|
|
backend = NULL;
|
|
}
|
|
sk_cleanup();
|
|
return (errs == 0 ? 0 : 1);
|
|
}
|
|
|
|
/* end */
|