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#include "builtin.h"
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "../../rss/icrss.h"
#include "../global.h"
#include "../stack/stack.h"
#include "../list/list.h"
#include "../string/string.h"
#include "../virtual/virtual.h"
#include "../int/int.h"
extern int echo;
extern void (*builtinfun[])(void);
char *setstring(char *);
/*
From fun_push_reg():
This function is called when the return register is to be pushed. The
return register is used to return information from built-in functions.
{\bf Note that} the {\em count} field of the return register is {\bf
not} incremented when the register is pushed. The associated memory is
assigned by internal functions and may be freed by subsequent {\em
pop}-instructions.
Therefore, also the builtin functions do not have to free the reg's
memory when assigning a value to reg.
*/
int getcmdlen(char **);
char *getarg(int, int *);
char **addcmd(char **, char *);
char **execmd(char **, int);
char *getexecarg(int, int *);
char *getLine(FILE *file);
void fun_empty(void);
void fun_arg_head(void);
void fun_arg_tail(void);
void fun_ascii_int(void);
void fun_ascii_str(void);
void fun_stat(void);
void fun_putenv(void);
void fun_chdir(void);
void fun_cmd_tail(void);
void fun_c_base(void);
void fun_c_ext(void);
void fun_c_path(void);
void fun_fields(void);
void fun_fgets(void);
void fun_fprintf(void);
void fun_g_base(void);
void fun_getch(void);
void fun_getpid (void);
void fun_gets(void);
void fun_g_ext(void);
void fun_g_path(void);
void fun_echo(void);
void fun_element(void);
void fun_exec(void);
void fun_exists(void);
void fun_makelist(void);
void fun_printf(void);
void fun_sizeoflist(void);
void fun_str_el(void);
void fun_system(void);
void fun_cmd_head(void);
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