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/******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#include <stdlib.h>
#include <string.h>
extern int main (int, char**);
extern int callback (int, char **);
int _start(char *arg_string, long len);
unsigned long callback_entry(void *base, unsigned long len);
#define MAX_ARGV 10
static int
gen_argv(const char *arg_string, int len, char* argv[])
{
const char *str, *str_end, *arg_string_end = arg_string + len;
int i;
str = arg_string;
for (i = 0; i < MAX_ARGV; i++)
{
str_end = str;
while((*str_end++ != ' ') && (str_end <= arg_string_end));
argv[i] = malloc(str_end-str);
memcpy (argv[i], str, str_end-str-1);
argv[i][str_end-str-1] = '\0';
str = str_end-1;
while(*(++str) == ' ');
if (str >= arg_string_end)
break;
}
return i+1;
}
int
_start(char * arg_string, long len)
{
int rc;
int argc;
char* argv[MAX_ARGV];
argc = gen_argv(arg_string, len, argv);
rc = main(argc, argv);
return rc;
}
/*
* Takes a Forth representation of a string and generates an argument array,
* then calls callback().
*/
unsigned long
callback_entry(void *base, unsigned long len) {
char *argv[MAX_ARGV];
int argc;
argc = gen_argv(base, len, argv);
return (callback(argc, argv));
}
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