+/* $OpenBSD: sftp-client.c,v 1.81 2008/03/23 12:54:01 djm Exp $ */
/*
* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
*
/* XXX: copy between two remote sites */
#include "includes.h"
-RCSID("$OpenBSD: sftp-client.c,v 1.52 2004/11/25 22:22:14 markus Exp $");
+#include <sys/types.h>
+#include <sys/param.h>
#include "openbsd-compat/sys-queue.h"
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#endif
+#include <sys/uio.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
-#include "buffer.h"
-#include "bufaux.h"
-#include "getput.h"
#include "xmalloc.h"
+#include "buffer.h"
#include "log.h"
#include "atomicio.h"
#include "progressmeter.h"
+#include "misc.h"
#include "sftp.h"
#include "sftp-common.h"
extern volatile sig_atomic_t interrupted;
extern int showprogress;
-/* Minimum amount of data to read at at time */
+/* Minimum amount of data to read at a time */
#define MIN_READ_SIZE 512
-/* Maximum packet size */
-#define MAX_MSG_LENGTH (256 * 1024)
-
struct sftp_conn {
int fd_in;
int fd_out;
u_int num_requests;
u_int version;
u_int msg_id;
+#define SFTP_EXT_POSIX_RENAME 1
+ u_int exts;
};
static void
send_msg(int fd, Buffer *m)
{
u_char mlen[4];
+ struct iovec iov[2];
- if (buffer_len(m) > MAX_MSG_LENGTH)
+ if (buffer_len(m) > SFTP_MAX_MSG_LENGTH)
fatal("Outbound message too long %u", buffer_len(m));
/* Send length first */
- PUT_32BIT(mlen, buffer_len(m));
- if (atomicio(vwrite, fd, mlen, sizeof(mlen)) <= 0)
- fatal("Couldn't send packet: %s", strerror(errno));
+ put_u32(mlen, buffer_len(m));
+ iov[0].iov_base = mlen;
+ iov[0].iov_len = sizeof(mlen);
+ iov[1].iov_base = buffer_ptr(m);
+ iov[1].iov_len = buffer_len(m);
- if (atomicio(vwrite, fd, buffer_ptr(m), buffer_len(m)) <= 0)
+ if (atomiciov(writev, fd, iov, 2) != buffer_len(m) + sizeof(mlen))
fatal("Couldn't send packet: %s", strerror(errno));
buffer_clear(m);
static void
get_msg(int fd, Buffer *m)
{
- ssize_t len;
u_int msg_len;
buffer_append_space(m, 4);
- len = atomicio(read, fd, buffer_ptr(m), 4);
- if (len == 0)
- fatal("Connection closed");
- else if (len == -1)
- fatal("Couldn't read packet: %s", strerror(errno));
+ if (atomicio(read, fd, buffer_ptr(m), 4) != 4) {
+ if (errno == EPIPE)
+ fatal("Connection closed");
+ else
+ fatal("Couldn't read packet: %s", strerror(errno));
+ }
msg_len = buffer_get_int(m);
- if (msg_len > MAX_MSG_LENGTH)
+ if (msg_len > SFTP_MAX_MSG_LENGTH)
fatal("Received message too long %u", msg_len);
buffer_append_space(m, msg_len);
- len = atomicio(read, fd, buffer_ptr(m), msg_len);
- if (len == 0)
- fatal("Connection closed");
- else if (len == -1)
- fatal("Read packet: %s", strerror(errno));
+ if (atomicio(read, fd, buffer_ptr(m), msg_len) != msg_len) {
+ if (errno == EPIPE)
+ fatal("Connection closed");
+ else
+ fatal("Read packet: %s", strerror(errno));
+ }
}
static void
struct sftp_conn *
do_init(int fd_in, int fd_out, u_int transfer_buflen, u_int num_requests)
{
- u_int type;
+ u_int type, exts = 0;
int version;
Buffer msg;
struct sftp_conn *ret;
char *value = buffer_get_string(&msg, NULL);
debug2("Init extension: \"%s\"", name);
+ if (strcmp(name, "posix-rename@openssh.com") == 0)
+ exts |= SFTP_EXT_POSIX_RENAME;
xfree(name);
xfree(value);
}
ret->num_requests = num_requests;
ret->version = version;
ret->msg_id = 1;
+ ret->exts = exts;
/* Some filexfer v.0 servers don't support large packets */
if (version == 0)
SFTP_DIRENT ***dir)
{
Buffer msg;
- u_int type, id, handle_len, i, expected_id, ents = 0;
+ u_int count, type, id, handle_len, i, expected_id, ents = 0;
char *handle;
id = conn->msg_id++;
}
for (; !interrupted;) {
- int count;
-
id = expected_id = conn->msg_id++;
debug3("Sending SSH2_FXP_READDIR I:%u", id);
printf("%s\n", longname);
if (dir) {
- *dir = xrealloc(*dir, sizeof(**dir) *
- (ents + 2));
+ *dir = xrealloc(*dir, ents + 2, sizeof(**dir));
(*dir)[ents] = xmalloc(sizeof(***dir));
(*dir)[ents]->filename = xstrdup(filename);
(*dir)[ents]->longname = xstrdup(longname);
return(get_decode_stat(conn->fd_in, id, quiet));
}
+#ifdef notyet
Attrib *
do_fstat(struct sftp_conn *conn, char *handle, u_int handle_len, int quiet)
{
return(get_decode_stat(conn->fd_in, id, quiet));
}
+#endif
int
do_setstat(struct sftp_conn *conn, char *path, Attrib *a)
/* Send rename request */
id = conn->msg_id++;
- buffer_put_char(&msg, SSH2_FXP_RENAME);
- buffer_put_int(&msg, id);
+ if ((conn->exts & SFTP_EXT_POSIX_RENAME)) {
+ buffer_put_char(&msg, SSH2_FXP_EXTENDED);
+ buffer_put_int(&msg, id);
+ buffer_put_cstring(&msg, "posix-rename@openssh.com");
+ } else {
+ buffer_put_char(&msg, SSH2_FXP_RENAME);
+ buffer_put_int(&msg, id);
+ }
buffer_put_cstring(&msg, oldpath);
buffer_put_cstring(&msg, newpath);
send_msg(conn->fd_out, &msg);
- debug3("Sent message SSH2_FXP_RENAME \"%s\" -> \"%s\"", oldpath,
- newpath);
+ debug3("Sent message %s \"%s\" -> \"%s\"",
+ (conn->exts & SFTP_EXT_POSIX_RENAME) ? "posix-rename@openssh.com" :
+ "SSH2_FXP_RENAME", oldpath, newpath);
buffer_free(&msg);
status = get_status(conn->fd_in, id);
return(status);
}
+#ifdef notyet
char *
do_readlink(struct sftp_conn *conn, char *path)
{
return(filename);
}
+#endif
static void
send_read_request(int fd_out, u_int id, u_int64_t offset, u_int len,
Attrib junk, *a;
Buffer msg;
char *handle;
- int local_fd, status, num_req, max_req, write_error;
+ int local_fd, status = 0, write_error;
int read_error, write_errno;
u_int64_t offset, size;
- u_int handle_len, mode, type, id, buflen;
+ u_int handle_len, mode, type, id, buflen, num_req, max_req;
off_t progress_counter;
struct request {
u_int id;
if (local_fd == -1) {
error("Couldn't open local file \"%s\" for writing: %s",
local_path, strerror(errno));
+ do_close(conn, handle, handle_len);
buffer_free(&msg);
xfree(handle);
return(-1);
debug3("Received reply T:%u I:%u R:%d", type, id, max_req);
/* Find the request in our queue */
- for(req = TAILQ_FIRST(&requests);
+ for (req = TAILQ_FIRST(&requests);
req != NULL && req->id != id;
req = TAILQ_NEXT(req, tq))
;
do_upload(struct sftp_conn *conn, char *local_path, char *remote_path,
int pflag)
{
- int local_fd, status;
+ int local_fd;
+ int status = SSH2_FX_OK;
u_int handle_len, id, type;
- u_int64_t offset;
+ off_t offset;
char *handle, *data;
Buffer msg;
struct stat sb;
struct outstanding_ack {
u_int id;
u_int len;
- u_int64_t offset;
+ off_t offset;
TAILQ_ENTRY(outstanding_ack) tq;
};
TAILQ_HEAD(ackhead, outstanding_ack) acks;
if (handle == NULL) {
close(local_fd);
buffer_free(&msg);
- return(-1);
+ return -1;
}
startid = ackid = id + 1;
* Simulate an EOF on interrupt, allowing ACKs from the
* server to drain.
*/
- if (interrupted)
+ if (interrupted || status != SSH2_FX_OK)
len = 0;
else do
len = read(local_fd, data, conn->transfer_buflen);
debug3("SSH2_FXP_STATUS %d", status);
/* Find the request in our queue */
- for(ack = TAILQ_FIRST(&acks);
+ for (ack = TAILQ_FIRST(&acks);
ack != NULL && ack->id != r_id;
ack = TAILQ_NEXT(ack, tq))
;
if (ack == NULL)
fatal("Can't find request for ID %u", r_id);
TAILQ_REMOVE(&acks, ack, tq);
-
- if (status != SSH2_FX_OK) {
- error("Couldn't write to remote file \"%s\": %s",
- remote_path, fx2txt(status));
- do_close(conn, handle, handle_len);
- close(local_fd);
- xfree(data);
- xfree(ack);
- goto done;
- }
- debug3("In write loop, ack for %u %u bytes at %llu",
- ack->id, ack->len, (unsigned long long)ack->offset);
+ debug3("In write loop, ack for %u %u bytes at %lld",
+ ack->id, ack->len, (long long)ack->offset);
++ackid;
xfree(ack);
}
offset += len;
+ if (offset < 0)
+ fatal("%s: offset < 0", __func__);
}
+ buffer_free(&msg);
+
if (showprogress)
stop_progress_meter();
xfree(data);
+ if (status != SSH2_FX_OK) {
+ error("Couldn't write to remote file \"%s\": %s",
+ remote_path, fx2txt(status));
+ status = -1;
+ }
+
if (close(local_fd) == -1) {
error("Couldn't close local file \"%s\": %s", local_path,
strerror(errno));
- do_close(conn, handle, handle_len);
status = -1;
- goto done;
}
/* Override umask and utimes if asked */
if (pflag)
do_fsetstat(conn, handle, handle_len, &a);
- status = do_close(conn, handle, handle_len);
-
-done:
+ if (do_close(conn, handle, handle_len) != SSH2_FX_OK)
+ status = -1;
xfree(handle);
- buffer_free(&msg);
- return(status);
+
+ return status;
}
andersk / gssapi-openssh.git / blobdiff