scp remote path specification

[Markus Friedl]

you cannot assume that the path for the remote scp is the
same as for the local scp. it's better to add an option
to scp, e.g.:
	$ scp -X /remote/path/to/scp /etc/passwd otherhost:/etc

-m

On Mon, Dec 18, 2000 at 03:48:45PM +0100, Jan IVEN wrote:
> Hello,
> 
> in order to use "scp", the scp binary has to be in the compile-time
> default path on the remote host. For some users (like root), we try to
> avoid this since scp may be on a network file system (AFS/NFS), and we
> don't want to hang root's session on network outages.
> 
> Would a patch to scp be acceptable in the main tree that allows to set
> the path to remote scp explicity, either as a new command line or as
> an ENV variable (it looks like a ssh config file parameter won't work,
> since the file is not read by scp itself).
> 
> I know that a workaround is to put "PATH=/path/to/bla" into these user's
> .ssh/environment or as a parameter to their key, but I don't want this
> PATH to be taken for interactive use.
> 
> Please advise.
> 
> Best regards
> Jan Iven
> 
> PS: a small patch so that /full/path/to/scp will find the
> corresponding local /full/path/to/ssh is appended below.
> 
> --- openssh/scp.c~	Sat Oct 28 05:19:58 2000
> +++ openssh/scp.c	Tue Nov  7 17:59:37 2000
> @@ -245,7 +245,7 @@
>  	char *argv[];
>  {
>  	int ch, fflag, tflag;
> -	char *targ;
> +	char *targ, *pathsep;
>  	extern char *optarg;
>  	extern int optind;
>  
> @@ -253,6 +253,19 @@
>  	addargs("ssh");	 	/* overwritten with ssh_program */
>  	addargs("-x");
>  	addargs("-oFallBackToRsh no");
> +
> +	/* check explicit path for ssh binary, default is SSH_PROGRAM */
> +	if ((argc > 0) &&
> +	    (argv[0] != NULL)) {
> +	  pathsep = strrchr(argv[0], '/');
> +	  if (pathsep != NULL) {
> +	    pathsep++;
> +	    *pathsep = 0; 
> +	    ssh_program = xmalloc(strlen(argv[0]) + 4); /* "../path" + "ssh\0" */
> +	    strcpy(ssh_program, argv[0]);
> +	    strcat(ssh_program, "ssh");
> +	  } 
> +	}
>  
>  	fflag = tflag = 0;
>  	while ((ch = getopt(argc, argv, "dfprtvBCc:i:P:q46S:o:")) != EOF)
> 
>