kentpeacock / rpms / openssh

Forked from rpms/openssh 2 years ago
Clone
Zoltan Fridrich c958ea
diff --color -ru a/scp.c b/scp.c
Zoltan Fridrich c958ea
--- a/scp.c	2022-06-30 09:47:39.529662574 +0200
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+++ b/scp.c	2022-06-30 09:51:05.740719310 +0200
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@@ -1324,12 +1324,12 @@
Zoltan Fridrich c958ea
 
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 	if (src_is_dir && iamrecursive) {
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 		if (upload_dir(conn, src, abs_dst, pflag,
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-		    SFTP_PROGRESS_ONLY, 0, 0, 1, 1) != 0) {
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+		    SFTP_PROGRESS_ONLY, 0, 0, 1, 1, 1) != 0) {
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 			error("failed to upload directory %s to %s",
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 				src, abs_dst);
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 			errs = 1;
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 		}
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-	} else if (do_upload(conn, src, abs_dst, pflag, 0, 0) != 0) {
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+	} else if (do_upload(conn, src, abs_dst, pflag, 0, 0, 1) != 0) {
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 		error("failed to upload file %s to %s", src, abs_dst);
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 		errs = 1;
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 	}
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@@ -1566,11 +1566,11 @@
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 		debug("Fetching %s to %s\n", g.gl_pathv[i], abs_dst);
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 		if (globpath_is_dir(g.gl_pathv[i]) && iamrecursive) {
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 			if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
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-			    pflag, SFTP_PROGRESS_ONLY, 0, 0, 1) == -1)
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+			    pflag, SFTP_PROGRESS_ONLY, 0, 0, 1, 1) == -1)
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 				err = -1;
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 		} else {
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 			if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
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-			    pflag, 0, 0) == -1)
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+			    pflag, 0, 0, 1) == -1)
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 				err = -1;
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 		}
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 		free(abs_dst);
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diff --color -ru a/sftp.c b/sftp.c
Zoltan Fridrich c958ea
--- a/sftp.c	2022-06-30 09:47:39.530662594 +0200
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+++ b/sftp.c	2022-06-30 09:52:05.118887441 +0200
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@@ -666,12 +666,12 @@
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 		if (globpath_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) {
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 			if (download_dir(conn, g.gl_pathv[i], abs_dst, NULL,
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 			    pflag || global_pflag, 1, resume,
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-			    fflag || global_fflag, 0) == -1)
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+			    fflag || global_fflag, 0, 0) == -1)
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 				err = -1;
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 		} else {
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 			if (do_download(conn, g.gl_pathv[i], abs_dst, NULL,
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 			    pflag || global_pflag, resume,
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-			    fflag || global_fflag) == -1)
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+			    fflag || global_fflag, 0) == -1)
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 				err = -1;
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 		}
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 		free(abs_dst);
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@@ -760,12 +760,12 @@
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 		if (globpath_is_dir(g.gl_pathv[i]) && (rflag || global_rflag)) {
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 			if (upload_dir(conn, g.gl_pathv[i], abs_dst,
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 			    pflag || global_pflag, 1, resume,
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-			    fflag || global_fflag, 0, 0) == -1)
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+			    fflag || global_fflag, 0, 0, 0) == -1)
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 				err = -1;
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 		} else {
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 			if (do_upload(conn, g.gl_pathv[i], abs_dst,
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 			    pflag || global_pflag, resume,
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-			    fflag || global_fflag) == -1)
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+			    fflag || global_fflag, 0) == -1)
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 				err = -1;
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 		}
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 	}
Zoltan Fridrich c958ea
diff --color -ru a/sftp-client.c b/sftp-client.c
Zoltan Fridrich c958ea
--- a/sftp-client.c	2022-06-30 09:47:39.530662594 +0200
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+++ b/sftp-client.c	2022-06-30 10:03:36.608473570 +0200
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@@ -1454,7 +1454,7 @@
Zoltan Fridrich c958ea
 int
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 do_download(struct sftp_conn *conn, const char *remote_path,
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     const char *local_path, Attrib *a, int preserve_flag, int resume_flag,
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-    int fsync_flag)
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+    int fsync_flag, int inplace_flag)
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 {
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 	struct sshbuf *msg;
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 	u_char *handle;
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@@ -1661,8 +1661,11 @@
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 	/* Sanity check */
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 	if (TAILQ_FIRST(&requests) != NULL)
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 		fatal("Transfer complete, but requests still in queue");
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-	/* Truncate at highest contiguous point to avoid holes on interrupt */
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-	if (read_error || write_error || interrupted) {
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+	/*
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+	 * Truncate at highest contiguous point to avoid holes on interrupt,
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+	 * or unconditionally if writing in place.
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+	 */
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+	if (inplace_flag || read_error || write_error || interrupted) {
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 		if (reordered && resume_flag) {
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 			error("Unable to resume download of \"%s\": "
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 			    "server reordered requests", local_path);
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@@ -1724,7 +1727,7 @@
Zoltan Fridrich c958ea
 static int
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 download_dir_internal(struct sftp_conn *conn, const char *src, const char *dst,
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     int depth, Attrib *dirattrib, int preserve_flag, int print_flag,
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-    int resume_flag, int fsync_flag, int follow_link_flag)
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+    int resume_flag, int fsync_flag, int follow_link_flag, int inplace_flag)
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 {
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 	int i, ret = 0;
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 	SFTP_DIRENT **dir_entries;
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@@ -1781,7 +1784,7 @@
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 			if (download_dir_internal(conn, new_src, new_dst,
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 			    depth + 1, &(dir_entries[i]->a), preserve_flag,
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 			    print_flag, resume_flag,
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-			    fsync_flag, follow_link_flag) == -1)
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+			    fsync_flag, follow_link_flag, inplace_flag) == -1)
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 				ret = -1;
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 		} else if (S_ISREG(dir_entries[i]->a.perm) ||
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 		    (follow_link_flag && S_ISLNK(dir_entries[i]->a.perm))) {
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@@ -1793,7 +1796,8 @@
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 			if (do_download(conn, new_src, new_dst,
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 			    S_ISLNK(dir_entries[i]->a.perm) ? NULL :
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 			    &(dir_entries[i]->a),
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-			    preserve_flag, resume_flag, fsync_flag) == -1) {
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+			    preserve_flag, resume_flag, fsync_flag,
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+			    inplace_flag) == -1) {
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 				error("Download of file %s to %s failed",
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 				    new_src, new_dst);
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 				ret = -1;
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@@ -1831,7 +1835,7 @@
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 int
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 download_dir(struct sftp_conn *conn, const char *src, const char *dst,
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     Attrib *dirattrib, int preserve_flag, int print_flag, int resume_flag,
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-    int fsync_flag, int follow_link_flag)
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+    int fsync_flag, int follow_link_flag, int inplace_flag)
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 {
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 	char *src_canon;
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 	int ret;
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@@ -1843,26 +1847,25 @@
Zoltan Fridrich c958ea
 
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 	ret = download_dir_internal(conn, src_canon, dst, 0,
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 	    dirattrib, preserve_flag, print_flag, resume_flag, fsync_flag,
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-	    follow_link_flag);
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+	    follow_link_flag, inplace_flag);
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 	free(src_canon);
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 	return ret;
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 }
Zoltan Fridrich c958ea
 
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 int
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 do_upload(struct sftp_conn *conn, const char *local_path,
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-    const char *remote_path, int preserve_flag, int resume, int fsync_flag)
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+    const char *remote_path, int preserve_flag, int resume,
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+    int fsync_flag, int inplace_flag)
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 {
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 	int r, local_fd;
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-	u_int status = SSH2_FX_OK;
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-	u_int id;
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-	u_char type;
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+	u_int openmode, id, status = SSH2_FX_OK, reordered = 0;
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 	off_t offset, progress_counter;
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-	u_char *handle, *data;
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+	u_char type, *handle, *data;
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 	struct sshbuf *msg;
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 	struct stat sb;
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-	Attrib a, *c = NULL;
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-	u_int32_t startid;
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-	u_int32_t ackid;
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+	Attrib a, t, *c = NULL;
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+	u_int32_t startid, ackid;
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+	u_int64_t highwater = 0;
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 	struct request *ack = NULL;
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 	struct requests acks;
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 	size_t handle_len;
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@@ -1913,10 +1916,15 @@
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 		}
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 	}
Zoltan Fridrich c958ea
 
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+	openmode = SSH2_FXF_WRITE|SSH2_FXF_CREAT;
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+	if (resume)
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+		openmode |= SSH2_FXF_APPEND;
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+	else if (!inplace_flag)
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+		openmode |= SSH2_FXF_TRUNC;
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+
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 	/* Send open request */
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-	if (send_open(conn, remote_path, "dest", SSH2_FXF_WRITE|SSH2_FXF_CREAT|
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-	    (resume ? SSH2_FXF_APPEND : SSH2_FXF_TRUNC),
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-	    &a, &handle, &handle_len) != 0) {
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+	if (send_open(conn, remote_path, "dest", openmode, &a,
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+	    &handle, &handle_len) != 0) {
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 		close(local_fd);
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 		return -1;
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 	}
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@@ -1999,6 +2007,12 @@
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 			    ack->id, ack->len, (unsigned long long)ack->offset);
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 			++ackid;
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 			progress_counter += ack->len;
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+			if (!reordered && ack->offset <= highwater)
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+				highwater = ack->offset + ack->len;
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+			else if (!reordered && ack->offset > highwater) {
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+				debug3_f("server reordered ACKs");
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+				reordered = 1;
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+			}
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 			free(ack);
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 		}
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 		offset += len;
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@@ -2017,6 +2031,14 @@
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 		status = SSH2_FX_FAILURE;
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 	}
Zoltan Fridrich c958ea
 
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+	if (inplace_flag || (resume && (status != SSH2_FX_OK || interrupted))) {
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+		debug("truncating at %llu", (unsigned long long)highwater);
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+		attrib_clear(&t);
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+		t.flags = SSH2_FILEXFER_ATTR_SIZE;
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+		t.size = highwater;
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+		do_fsetstat(conn, handle, handle_len, &t);
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+	}
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+
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 	if (close(local_fd) == -1) {
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 		error("Couldn't close local file \"%s\": %s", local_path,
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 		    strerror(errno));
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@@ -2041,7 +2063,7 @@
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 static int
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 upload_dir_internal(struct sftp_conn *conn, const char *src, const char *dst,
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     int depth, int preserve_flag, int print_flag, int resume, int fsync_flag,
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-    int follow_link_flag)
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+    int follow_link_flag, int inplace_flag)
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 {
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 	int ret = 0;
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 	DIR *dirp;
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@@ -2119,12 +2141,13 @@
Zoltan Fridrich c958ea
 
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 			if (upload_dir_internal(conn, new_src, new_dst,
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 			    depth + 1, preserve_flag, print_flag, resume,
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-			    fsync_flag, follow_link_flag) == -1)
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+			    fsync_flag, follow_link_flag, inplace_flag) == -1)
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 				ret = -1;
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 		} else if (S_ISREG(sb.st_mode) ||
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 		    (follow_link_flag && S_ISLNK(sb.st_mode))) {
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 			if (do_upload(conn, new_src, new_dst,
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-			    preserve_flag, resume, fsync_flag) == -1) {
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+			    preserve_flag, resume, fsync_flag,
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+			    inplace_flag) == -1) {
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 				error("Uploading of file %s to %s failed!",
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 				    new_src, new_dst);
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 				ret = -1;
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@@ -2144,7 +2167,7 @@
Zoltan Fridrich c958ea
 int
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 upload_dir(struct sftp_conn *conn, const char *src, const char *dst,
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     int preserve_flag, int print_flag, int resume, int fsync_flag,
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-    int follow_link_flag, int create_dir)
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+    int follow_link_flag, int create_dir, int inplace_flag)
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 {
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 	char *dst_canon;
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 	int ret;
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@@ -2155,7 +2178,7 @@
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 	}
Zoltan Fridrich c958ea
 
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 	ret = upload_dir_internal(conn, src, dst_canon, 0, preserve_flag,
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-	    print_flag, resume, fsync_flag, follow_link_flag);
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+	    print_flag, resume, fsync_flag, follow_link_flag, inplace_flag);
Zoltan Fridrich c958ea
 
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 	free(dst_canon);
Zoltan Fridrich c958ea
 	return ret;
Zoltan Fridrich c958ea
diff --color -ru a/sftp-client.h b/sftp-client.h
Zoltan Fridrich c958ea
--- a/sftp-client.h	2022-06-30 09:47:39.530662594 +0200
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+++ b/sftp-client.h	2022-06-30 10:05:50.835107759 +0200
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@@ -138,28 +138,29 @@
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  * Download 'remote_path' to 'local_path'. Preserve permissions and times
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  * if 'pflag' is set
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  */
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-int do_download(struct sftp_conn *, const char *, const char *,
Zoltan Fridrich c958ea
-    Attrib *, int, int, int);
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+int do_download(struct sftp_conn *, const char *, const char *, Attrib *,
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+    int, int, int, int);
Zoltan Fridrich c958ea
 
Zoltan Fridrich c958ea
 /*
Zoltan Fridrich c958ea
  * Recursively download 'remote_directory' to 'local_directory'. Preserve
Zoltan Fridrich c958ea
  * times if 'pflag' is set
Zoltan Fridrich c958ea
  */
Zoltan Fridrich c958ea
-int download_dir(struct sftp_conn *, const char *, const char *,
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-    Attrib *, int, int, int, int, int);
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+int download_dir(struct sftp_conn *, const char *, const char *, Attrib *,
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+    int, int, int, int, int, int);
Zoltan Fridrich c958ea
 
Zoltan Fridrich c958ea
 /*
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  * Upload 'local_path' to 'remote_path'. Preserve permissions and times
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  * if 'pflag' is set
Zoltan Fridrich c958ea
  */
Zoltan Fridrich c958ea
-int do_upload(struct sftp_conn *, const char *, const char *, int, int, int);
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+int do_upload(struct sftp_conn *, const char *, const char *,
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+    int, int, int, int);
Zoltan Fridrich c958ea
 
Zoltan Fridrich c958ea
 /*
Zoltan Fridrich c958ea
  * Recursively upload 'local_directory' to 'remote_directory'. Preserve
Zoltan Fridrich c958ea
  * times if 'pflag' is set
Zoltan Fridrich c958ea
  */
Zoltan Fridrich c958ea
-int upload_dir(struct sftp_conn *, const char *, const char *, int, int, int,
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-    int, int, int);
Zoltan Fridrich c958ea
+int upload_dir(struct sftp_conn *, const char *, const char *,
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+    int, int, int, int, int, int, int);
Zoltan Fridrich c958ea
 
Zoltan Fridrich c958ea
 /*
Zoltan Fridrich c958ea
  * Download a 'from_path' from the 'from' connection and upload it to