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From:
Walter Alejandro Iglesias <wai@roquesor.com>
Subject:
Re: Fix for vi editing mode in sftp(1) (PING)
To:
tech@openbsd.org, Stuart Henderson <stu@spacehopper.org>
Date:
Mon, 19 Jan 2026 20:26:55 +0100

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On Mon, Jan 19, 2026 at 05:12:14PM +0000, Stuart Henderson wrote:
> On 2026/01/19 11:09, Walter Alejandro Iglesias wrote:
> > On Sun, Dec 21, 2025 at 11:49:36AM +0100, Walter Alejandro Iglesias wrote:
> > > Currently vi editing mode doesn't work in sftp(1), only emacs.  Since
> > > editline(3) support is already included in sftp, it doesn't hurt to make
> > > it fully work, right?
> > > 
> > > To test it you need this:
> > > 
> > >   $ cat ~/.editrc
> > >   sftp:bind -v
> > > 
> > 
> > 
> > Index: sftp.c
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/ssh/sftp.c,v
> > diff -u -p -u -p -r1.247 sftp.c
> > --- sftp.c	13 Oct 2025 00:54:29 -0000	1.247
> > +++ sftp.c	19 Dec 2025 15:21:45 -0000
> > @@ -2210,6 +2210,7 @@ interactive_loop(struct sftp_conn *conn,
> >  	HistEvent hev;
> >  	extern char *__progname;
> >  	struct complete_ctx complete_ctx;
> > +	const char *editor;
> >  
> >  	if (!batchmode && isatty(STDIN_FILENO)) {
> >  		if ((el = el_init(__progname, stdin, stdout, stderr)) == NULL)
> > @@ -2239,6 +2240,11 @@ interactive_loop(struct sftp_conn *conn,
> >  		el_set(el, EL_BIND, "\\e\\e[D", "ed-prev-word", NULL);
> >  		/* make ^w match ksh behaviour */
> >  		el_set(el, EL_BIND, "^w", "ed-delete-prev-word", NULL);
> > +
> > +		/* Vi command mode */
> > +		el_get(el, EL_EDITOR, &editor);
> > +		if (editor[0] == 'v')
> > +			el_set(el, EL_BIND, "^[", "vi-command-mode", NULL);
> >  	}
> >  
> >  	if ((remote_path = sftp_realpath(conn, ".")) == NULL)
> 
> works as advertised, but I think it would probably be a good idea to
> check el_get()'s return code before dereferencing editor.

It's already hard coded to "emacs" a few lines above my change (see line
2224 of sftp.c):

		el_set(el, EL_EDITOR, "emacs");


But it doesn't hurt another check to be sure. ;-)



> 
> ok?
> 
> Index: sftp.c
> ===================================================================
> RCS file: /cvs/src/usr.bin/ssh/sftp.c,v
> diff -u -p -r1.247 sftp.c
> --- sftp.c	13 Oct 2025 00:54:29 -0000	1.247
> +++ sftp.c	19 Jan 2026 17:11:38 -0000
> @@ -2204,6 +2204,7 @@ interactive_loop(struct sftp_conn *conn,
>  	char *remote_path;
>  	char *dir = NULL, *startdir = NULL;
>  	char cmd[2048];
> +	const char *editor;
>  	int err, interactive;
>  	EditLine *el = NULL;
>  	History *hl = NULL;
> @@ -2239,6 +2240,10 @@ interactive_loop(struct sftp_conn *conn,
>  		el_set(el, EL_BIND, "\\e\\e[D", "ed-prev-word", NULL);
>  		/* make ^w match ksh behaviour */
>  		el_set(el, EL_BIND, "^w", "ed-delete-prev-word", NULL);
> +
> +		/* Vi command mode */
> +		if (el_get(el, EL_EDITOR, &editor) == 0 && editor[0] == 'v')
> +			el_set(el, EL_BIND, "^[", "vi-command-mode", NULL);
>  	}
> 
>  	if ((remote_path = sftp_realpath(conn, ".")) == NULL)
> 

-- 
Walter