FreeBSD-5.3/sys/boot/ficl/testmain.c
/*
** stub main for testing FICL under userland
** $Id: testmain.c,v 1.13 2001/12/05 07:21:34 jsadler Exp $
*/
/*
** Copyright (c) 1997-2001 John Sadler (john_sadler@alum.mit.edu)
** All rights reserved.
**
** Get the latest Ficl release at http://ficl.sourceforge.net
**
** I am interested in hearing from anyone who uses ficl. If you have
** a problem, a success story, a defect, an enhancement request, or
** if you would like to contribute to the ficl release, please
** contact me by email at the address above.
**
** L I C E N S E and D I S C L A I M E R
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE.
*/
/* $FreeBSD: src/sys/boot/ficl/testmain.c,v 1.8 2002/04/09 17:45:11 dcs Exp $ */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "ficl.h"
/*
** Ficl interface to getcwd
** Prints the current working directory using the VM's
** textOut method...
*/
static void ficlGetCWD(FICL_VM *pVM)
{
char *cp;
cp = getcwd(NULL, 80);
vmTextOut(pVM, cp, 1);
free(cp);
return;
}
/*
** Ficl interface to chdir
** Gets a newline (or NULL) delimited string from the input
** and feeds it to chdir()
** Example:
** cd c:\tmp
*/
static void ficlChDir(FICL_VM *pVM)
{
FICL_STRING *pFS = (FICL_STRING *)pVM->pad;
vmGetString(pVM, pFS, '\n');
if (pFS->count > 0)
{
int err = chdir(pFS->text);
if (err)
{
vmTextOut(pVM, "Error: path not found", 1);
vmThrow(pVM, VM_QUIT);
}
}
else
{
vmTextOut(pVM, "Warning (chdir): nothing happened", 1);
}
return;
}
/*
** Ficl interface to system (ANSI)
** Gets a newline (or NULL) delimited string from the input
** and feeds it to system()
** Example:
** system rm -rf /
** \ ouch!
*/
static void ficlSystem(FICL_VM *pVM)
{
FICL_STRING *pFS = (FICL_STRING *)pVM->pad;
vmGetString(pVM, pFS, '\n');
if (pFS->count > 0)
{
int err = system(pFS->text);
if (err)
{
sprintf(pVM->pad, "System call returned %d", err);
vmTextOut(pVM, pVM->pad, 1);
vmThrow(pVM, VM_QUIT);
}
}
else
{
vmTextOut(pVM, "Warning (system): nothing happened", 1);
}
return;
}
/*
** Ficl add-in to load a text file and execute it...
** Cheesy, but illustrative.
** Line oriented... filename is newline (or NULL) delimited.
** Example:
** load test.ficl
*/
#define nLINEBUF 256
static void ficlLoad(FICL_VM *pVM)
{
char cp[nLINEBUF];
char filename[nLINEBUF];
FICL_STRING *pFilename = (FICL_STRING *)filename;
int nLine = 0;
FILE *fp;
int result;
CELL id;
struct stat buf;
vmGetString(pVM, pFilename, '\n');
if (pFilename->count <= 0)
{
vmTextOut(pVM, "Warning (load): nothing happened", 1);
return;
}
/*
** get the file's size and make sure it exists
*/
result = stat( pFilename->text, &buf );
if (result != 0)
{
vmTextOut(pVM, "Unable to stat file: ", 0);
vmTextOut(pVM, pFilename->text, 1);
vmThrow(pVM, VM_QUIT);
}
fp = fopen(pFilename->text, "r");
if (!fp)
{
vmTextOut(pVM, "Unable to open file ", 0);
vmTextOut(pVM, pFilename->text, 1);
vmThrow(pVM, VM_QUIT);
}
id = pVM->sourceID;
pVM->sourceID.p = (void *)fp;
/* feed each line to ficlExec */
while (fgets(cp, nLINEBUF, fp))
{
int len = strlen(cp) - 1;
nLine++;
if (len <= 0)
continue;
result = ficlExecC(pVM, cp, len);
if (result != VM_QUIT && result != VM_USEREXIT && result != VM_OUTOFTEXT )
{
pVM->sourceID = id;
fclose(fp);
vmThrowErr(pVM, "Error loading file <%s> line %d", pFilename->text, nLine);
break;
}
}
/*
** Pass an empty line with SOURCE-ID == -1 to flush
** any pending REFILLs (as required by FILE wordset)
*/
pVM->sourceID.i = -1;
ficlExec(pVM, "");
pVM->sourceID = id;
fclose(fp);
/* handle "bye" in loaded files. --lch */
if (result == VM_USEREXIT)
vmThrow(pVM, VM_USEREXIT);
return;
}
/*
** Dump a tab delimited file that summarizes the contents of the
** dictionary hash table by hashcode...
*/
static void spewHash(FICL_VM *pVM)
{
FICL_HASH *pHash = vmGetDict(pVM)->pForthWords;
FICL_WORD *pFW;
FILE *pOut;
unsigned i;
unsigned nHash = pHash->size;
if (!vmGetWordToPad(pVM))
vmThrow(pVM, VM_OUTOFTEXT);
pOut = fopen(pVM->pad, "w");
if (!pOut)
{
vmTextOut(pVM, "unable to open file", 1);
return;
}
for (i=0; i < nHash; i++)
{
int n = 0;
pFW = pHash->table[i];
while (pFW)
{
n++;
pFW = pFW->link;
}
fprintf(pOut, "%d\t%d", i, n);
pFW = pHash->table[i];
while (pFW)
{
fprintf(pOut, "\t%s", pFW->name);
pFW = pFW->link;
}
fprintf(pOut, "\n");
}
fclose(pOut);
return;
}
static void ficlBreak(FICL_VM *pVM)
{
pVM->state = pVM->state;
return;
}
static void ficlClock(FICL_VM *pVM)
{
clock_t now = clock();
stackPushUNS(pVM->pStack, (FICL_UNS)now);
return;
}
static void clocksPerSec(FICL_VM *pVM)
{
stackPushUNS(pVM->pStack, CLOCKS_PER_SEC);
return;
}
static void execxt(FICL_VM *pVM)
{
FICL_WORD *pFW;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 1, 0);
#endif
pFW = stackPopPtr(pVM->pStack);
ficlExecXT(pVM, pFW);
return;
}
void buildTestInterface(FICL_SYSTEM *pSys)
{
ficlBuild(pSys, "break", ficlBreak, FW_DEFAULT);
ficlBuild(pSys, "clock", ficlClock, FW_DEFAULT);
ficlBuild(pSys, "cd", ficlChDir, FW_DEFAULT);
ficlBuild(pSys, "execxt", execxt, FW_DEFAULT);
ficlBuild(pSys, "load", ficlLoad, FW_DEFAULT);
ficlBuild(pSys, "pwd", ficlGetCWD, FW_DEFAULT);
ficlBuild(pSys, "system", ficlSystem, FW_DEFAULT);
ficlBuild(pSys, "spewhash", spewHash, FW_DEFAULT);
ficlBuild(pSys, "clocks/sec",
clocksPerSec, FW_DEFAULT);
return;
}
int main(int argc, char **argv)
{
char in[256];
FICL_VM *pVM;
FICL_SYSTEM *pSys;
pSys = ficlInitSystem(10000);
buildTestInterface(pSys);
pVM = ficlNewVM(pSys);
ficlEvaluate(pVM, ".ver .( " __DATE__ " ) cr quit");
/*
** load file from cmd line...
*/
if (argc > 1)
{
sprintf(in, ".( loading %s ) cr load %s\n cr", argv[1], argv[1]);
ficlEvaluate(pVM, in);
}
for (;;)
{
int ret;
if (fgets(in, sizeof(in) - 1, stdin) == NULL)
break;
ret = ficlExec(pVM, in);
if (ret == VM_USEREXIT)
{
ficlTermSystem(pSys);
break;
}
}
return 0;
}