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/*
* Copyright 1987, 1988 by MIT Student Information Processing Board
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose is hereby granted, provided that
* the names of M.I.T. and the M.I.T. S.I.P.B. not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. M.I.T. and the
* M.I.T. S.I.P.B. make no representations about the suitability of
* this software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef _ss_ss_internal_h
#define _ss_ss_internal_h __FILE__
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef __STDC__
#define NOARGS void
#define PROTOTYPE(p) p
typedef void * pointer;
#else
#define NOARGS
#define const
#define volatile
#define PROTOTYPE(p) ()
typedef char * pointer;
#endif /* not __STDC__ */
#include "ss.h"
#if defined(__GNUC__)
#define LOCAL_ALLOC(x) __builtin_alloca(x)
#define LOCAL_FREE(x)
#else
#if defined(vax)
#define LOCAL_ALLOC(x) alloca(x)
#define LOCAL_FREE(x)
extern pointer alloca PROTOTYPE((unsigned));
#else
#if defined(__HIGHC__) /* Barf! */
pragma on(alloca);
#define LOCAL_ALLOC(x) alloca(x)
#define LOCAL_FREE(x)
extern pointer alloca PROTOTYPE((unsigned));
#else
/* no alloca? */
#define LOCAL_ALLOC(x) malloc(x)
#define LOCAL_FREE(x) free(x)
#endif
#endif
#endif /* LOCAL_ALLOC stuff */
typedef char BOOL;
typedef struct _ss_abbrev_entry {
char *name; /* abbrev name */
char **abbrev; /* new tokens to insert */
unsigned int beginning_of_line : 1;
} ss_abbrev_entry;
typedef struct _ss_abbrev_list {
int n_abbrevs;
ss_abbrev_entry *first_abbrev;
} ss_abbrev_list;
typedef struct {
/* char *path; */
ss_abbrev_list abbrevs[127];
} ss_abbrev_info;
typedef struct _ss_data { /* init values */
/* this subsystem */
const char *subsystem_name;
const char *subsystem_version;
/* current request info */
int argc;
char **argv; /* arg list */
char const *current_request; /* primary name */
/* info directory for 'help' */
char **info_dirs;
/* to be extracted by subroutines */
pointer info_ptr; /* (void *) NULL */
/* for ss_listen processing */
char *prompt;
ss_request_table **rqt_tables;
ss_abbrev_info *abbrev_info;
struct {
unsigned int escape_disabled : 1,
abbrevs_disabled : 1;
} flags;
/* to get out */
int abort; /* exit subsystem */
int exit_status;
} ss_data;
#define CURRENT_SS_VERSION 1
#define ss_info(sci_idx) (_ss_table[sci_idx])
#define ss_current_request(sci_idx,code_ptr) \
(*code_ptr=0,ss_info(sci_idx)->current_request)
void ss_delete_info_dir PROTOTYPE((int sci_idx, char *info_dir,
int *code_ptr));
int ss_execute_line PROTOTYPE((int sci_idx, char *line_ptr));
char **ss_parse PROTOTYPE((int sci_idx, char *line_ptr, int *argc_ptr));
ss_abbrev_info *ss_abbrev_initialize PROTOTYPE((char *, int *));
void ss_page_stdin(NOARGS);
extern ss_data **_ss_table;
extern char *ss_et_msgs[];
#ifdef USE_SIGPROCMASK
/* fake sigmask, sigblock, sigsetmask */
#include <signal.h>
#define sigmask(x) (1L<<(x)-1)
#define sigsetmask(x) sigprocmask(SIG_SETMASK,&x,NULL)
static int _fake_sigstore;
#define sigblock(x) (_fake_sigstore=x,sigprocmask(SIG_BLOCK,&_fake_sigstore,0))
#endif
#endif /* _ss_internal_h */
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