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/*
* Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
*
* 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 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <string.h>
#include <malloc.h>
#include <console.h>
#include <gpxe/editstring.h>
#include <readline/readline.h>
/** @file
*
* Minimal readline
*
*/
#define READLINE_MAX 256
/**
* Read line from console
*
* @v prompt Prompt string
* @ret line Line read from console (excluding terminating newline)
*
* The returned line is allocated with malloc(); the caller must
* eventually call free() to release the storage.
*/
char * readline ( const char *prompt ) {
char buf[READLINE_MAX];
struct edit_string string = {
.buf = buf,
.len = sizeof ( buf ),
.cursor = 0,
};
int key;
if ( prompt )
printf ( "%s", prompt );
buf[0] = '\0';
while ( 1 ) {
key = edit_string ( &string, getchar() );
switch ( key ) {
case 0x0d: /* Carriage return */
case 0x0a: /* Line feed */
return ( strdup ( buf ) );
case 0x03: /* Ctrl-C */
return NULL;
default:
/* Do nothing */
break;
}
}
}
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