# Copyright (C) 1992 - 2001 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# Please email any bugs, comments, and/or additions to this file to:
# bug-dejagnu@gnu.org

# This file was written by Rob Savoye. (rob@welcomehome.org)

if ![info exists board] {
    error "must set $board before loading unix.exp"
}

# For rcp_download, rsh_exec.
load_lib remote.exp

#
# unix_load -- load the program and execute it
#
# See default.exp for explanation of arguments and results.
#


proc unix_load { dest prog args } {
    global ld_library_path
    set output "";

    if { [llength $args] > 0 } {
	set parg [lindex $args 0];
    } else {
	set parg ""
    }

    if { [llength $args] > 1 } {
	set inp [lindex $args 1];
    } else {
	set inp ""
    }

    if ![file exists $prog] then {
	# We call both here because this should never happen.
	perror "$prog does not exist in unix_load."
	verbose -log "$prog does not exist." 3
	return "untested"
    }
    verbose "loading to $dest" 2
    if ![is_remote $dest] {
	if { "$inp" != "" } {
	    set command "$prog $parg < $inp"
	} else {
	    set command "$prog $parg";
	}

        if [info exists ld_library_path] {
            setenv LD_LIBRARY_PATH $ld_library_path                 
            setenv SHLIB_PATH $ld_library_path
        }
 
	set id [remote_spawn $dest "$command" "readonly"];
	if { $id < 0 } {
	    set output "remote_spawn failed"
	    set status -1;
	} else {
	    set status [remote_wait $dest 300];
	    set output [lindex $status 1];
	    set status [lindex $status 0];
	}
	# Unset them so we don't potentially get hosed when we try to run a
	# non-testcase executable. (Setting LD_LIBRARY_PATH is the wrong
	# fix in the first place; this just tries to minimize the resulting
	# crap.)
	if [info exists ld_library_path] {
	    unsetenv LD_LIBRARY_PATH
	    unsetenv SHLIB_PATH
	}
    } else { 
	set remotefile "/tmp/[file tail $prog].[pid]"
	set remotefile [remote_download $dest $prog $remotefile];
	if { $remotefile == "" } {
	    verbose -log "Download of $prog to [board_info $dest name] failed." 3
	    return [list "unresolved" ""];
	}
	if [board_info $dest exists remote_link] {
	    if [[board_info $dest remote_link] $remotefile] {
		verbose -log "Couldn't do remote link"
		remote_exec $dest "\\rm -f $remotefile"
		return [list "unresolved" ""]
	    }

	    verbose "$prog linked ok" 3
	} else {
	    # rcp's to lynx seem not to get marked executable
	    set status [remote_exec $dest "chmod +x $remotefile"]
	    if { [lindex $status 0] != 0 } {
		remote_file $dest delete ${remotefile}.o $remotefile
		verbose -log "chmod +x of $prog on $dest failed." 3
		return [list "unresolved" ""];
	    }
	}
	set status [remote_exec $dest "$remotefile" $parg $inp]
	remote_file $dest delete $remotefile.o $remotefile;
	if { [lindex $status 0] < 0 } {
	    verbose -log "Couldn't execute $prog, [lindex $status 1]" 3
	    return [list "unresolved" ""]
	}
	set output [lindex $status 1]
	set status [lindex $status 0]
    }

    verbose "Executed $prog, status $status" 2
    if ![string match "" $output] {
	verbose -- "$output" 2
    }
    if { $status == 0 } {
	set result "pass";
    } else {
	set result "fail";
    }
    return [list $result $output];
}

set_board_info protocol  "unix";
