sftpfs: SSH aliases (#2923 wrong fix)

[trap000d]

GNU Midnight Commander 4.8.9
Built with GLib 2.34.1
Using the S-Lang library with terminfo database
With builtin Editor
With subshell support as default
With support for background operations
With mouse support on xterm
With support for X11 events
With internationalization support
With multiple codepages support
Virtual File Systems: cpiofs, tarfs, sfs, extfs, ftpfs, sftpfs, fish
Data types: char: 8; int: 32; long: 64; void *: 64; size_t: 64; off_t: 64;

If the file ~/.ssh/config exists and no matter contains or not an alias for SSH connection then it does not possible to open SFTP link. The error text is:

Cannot chdir to "/​sftp://user@host"
(17) sftp: an error occurred while reading ~/.ssh/config: File exists

After erasing the file it's possible to connect to remote host via sftp.

Steps to reproduce:
# Have file ~/.ssh/config
# run mc
# try to connect any ssh host via menu (F9->Right->SFTP Link)
# get above error

Expected result
# working SFTP VFS

[andrew_b]

Having following ~/.ssh/config:

host github.com
    IdentityFile ~/.ssh/github.com.key

host midnight-commander.org
    IdentityFile ~/.ssh/midnight-commander.org.key

host example
    HostName 127.0.0.1
    User andrew

Works fine for me.

[zaytsev]

Probably fixed in #3456 .