mirror of
https://git.code.sf.net/p/fuse-emulator/fuse
synced 2026-01-28 14:20:54 +03:00
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/* command.c: Parse a debugger command
|
|
Copyright (c) 2002 Philip Kendall
|
|
|
|
$Id$
|
|
|
|
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, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
Author contact information:
|
|
|
|
E-mail: pak21-fuse@srcf.ucam.org
|
|
Postal address: 15 Crescent Road, Wokingham, Berks, RG40 2DB, England
|
|
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "debugger.h"
|
|
#include "ui/ui.h"
|
|
|
|
/* The last debugger command we were given to execute */
|
|
static char *command_buffer = NULL;
|
|
|
|
/* And a pointer as to how much we've parsed */
|
|
static char *command_ptr;
|
|
|
|
/* Necessary declaration */
|
|
int yyparse( void );
|
|
|
|
/* Called by the Flex parser (via YY_INPUT as defined at the top of
|
|
commandl.l) to get up to 'max_size' bytes of the command to be parsed */
|
|
int
|
|
debugger_command_input( char *buf, int *result, int max_size )
|
|
{
|
|
size_t length = strlen( command_ptr );
|
|
|
|
if( !length ) {
|
|
return 0;
|
|
} else if( length < max_size ) {
|
|
memcpy( buf, command_ptr, length );
|
|
*result = length; command_ptr += length;
|
|
return 1;
|
|
} else {
|
|
memcpy( buf, command_ptr, max_size );
|
|
*result = max_size; command_ptr += max_size;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* Evaluate the debugger command given in 'command' */
|
|
int
|
|
debugger_command_evaluate( const char *command )
|
|
{
|
|
if( command_buffer ) free( command_buffer );
|
|
|
|
command_buffer = strdup( command );
|
|
if( !command_buffer ) {
|
|
ui_error( UI_ERROR_ERROR, "Out of memory at %s:%d", __FILE__, __LINE__ );
|
|
return 1;
|
|
}
|
|
|
|
/* Start parsing at the start of the given command */
|
|
command_ptr = command_buffer;
|
|
|
|
yyparse();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* The error callback if yyparse finds an error */
|
|
void
|
|
yyerror( char *s )
|
|
{
|
|
ui_error( UI_ERROR_ERROR, "Invalid debugger command: %s", s );
|
|
}
|
|
|