68fd965f98
isdir? ( fd -- bool ) freaddir ( fd -- ptr len TRUE | FALSE ) The 'isdir?' word returns `true' if the file descriptor is for a directory and `false' otherwise. The 'freaddir' word reads the next directory entry and if successful, returns its name and 'true'. Otherwise 'false' is returned. These words give the loader the ability to scan directories and read files contained in them for 'rc.d'-like flexibility in handling which modules to load and/or which tunables to set. Obtained from: Juniper Networks, Inc.
763 lines
17 KiB
C
763 lines
17 KiB
C
/*-
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* Copyright (c) 2000 Daniel Capo Sobral
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*******************************************************************
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** l o a d e r . c
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** Additional FICL words designed for FreeBSD's loader
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**
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*******************************************************************/
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#ifdef TESTMAIN
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#include <stdlib.h>
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#else
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#include <stand.h>
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#endif
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#include "bootstrap.h"
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#include <string.h>
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#include "ficl.h"
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/* FreeBSD's loader interaction words and extras
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*
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* setenv ( value n name n' -- )
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* setenv? ( value n name n' flag -- )
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* getenv ( addr n -- addr' n' | -1 )
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* unsetenv ( addr n -- )
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* copyin ( addr addr' len -- )
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* copyout ( addr addr' len -- )
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* findfile ( name len type len' -- addr )
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* pnpdevices ( -- addr )
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* pnphandlers ( -- addr )
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* ccall ( [[...[p10] p9] ... p1] n addr -- result )
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* .# ( value -- )
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*/
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void
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ficlSetenv(FICL_VM *pVM)
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{
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#ifndef TESTMAIN
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char *name, *value;
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#endif
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char *namep, *valuep;
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int names, values;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 4, 0);
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#endif
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names = stackPopINT(pVM->pStack);
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namep = (char*) stackPopPtr(pVM->pStack);
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values = stackPopINT(pVM->pStack);
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valuep = (char*) stackPopPtr(pVM->pStack);
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#ifndef TESTMAIN
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name = (char*) ficlMalloc(names+1);
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if (!name)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(name, namep, names);
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name[names] = '\0';
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value = (char*) ficlMalloc(values+1);
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if (!value)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(value, valuep, values);
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value[values] = '\0';
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setenv(name, value, 1);
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ficlFree(name);
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ficlFree(value);
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#endif
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return;
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}
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void
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ficlSetenvq(FICL_VM *pVM)
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{
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#ifndef TESTMAIN
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char *name, *value;
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#endif
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char *namep, *valuep;
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int names, values, overwrite;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 5, 0);
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#endif
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overwrite = stackPopINT(pVM->pStack);
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names = stackPopINT(pVM->pStack);
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namep = (char*) stackPopPtr(pVM->pStack);
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values = stackPopINT(pVM->pStack);
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valuep = (char*) stackPopPtr(pVM->pStack);
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#ifndef TESTMAIN
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name = (char*) ficlMalloc(names+1);
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if (!name)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(name, namep, names);
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name[names] = '\0';
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value = (char*) ficlMalloc(values+1);
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if (!value)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(value, valuep, values);
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value[values] = '\0';
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setenv(name, value, overwrite);
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ficlFree(name);
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ficlFree(value);
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#endif
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return;
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}
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void
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ficlGetenv(FICL_VM *pVM)
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{
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#ifndef TESTMAIN
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char *name;
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#endif
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char *namep, *value;
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int names;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 2);
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#endif
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names = stackPopINT(pVM->pStack);
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namep = (char*) stackPopPtr(pVM->pStack);
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#ifndef TESTMAIN
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name = (char*) ficlMalloc(names+1);
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if (!name)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(name, namep, names);
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name[names] = '\0';
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value = getenv(name);
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ficlFree(name);
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if(value != NULL) {
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stackPushPtr(pVM->pStack, value);
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stackPushINT(pVM->pStack, strlen(value));
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} else
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#endif
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stackPushINT(pVM->pStack, -1);
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return;
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}
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void
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ficlUnsetenv(FICL_VM *pVM)
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{
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#ifndef TESTMAIN
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char *name;
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#endif
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char *namep;
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int names;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 0);
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#endif
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names = stackPopINT(pVM->pStack);
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namep = (char*) stackPopPtr(pVM->pStack);
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#ifndef TESTMAIN
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name = (char*) ficlMalloc(names+1);
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if (!name)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(name, namep, names);
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name[names] = '\0';
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unsetenv(name);
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ficlFree(name);
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#endif
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return;
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}
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void
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ficlCopyin(FICL_VM *pVM)
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{
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void* src;
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vm_offset_t dest;
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size_t len;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 0);
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#endif
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len = stackPopINT(pVM->pStack);
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dest = stackPopINT(pVM->pStack);
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src = stackPopPtr(pVM->pStack);
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#ifndef TESTMAIN
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archsw.arch_copyin(src, dest, len);
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#endif
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return;
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}
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void
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ficlCopyout(FICL_VM *pVM)
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{
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void* dest;
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vm_offset_t src;
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size_t len;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 0);
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#endif
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len = stackPopINT(pVM->pStack);
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dest = stackPopPtr(pVM->pStack);
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src = stackPopINT(pVM->pStack);
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#ifndef TESTMAIN
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archsw.arch_copyout(src, dest, len);
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#endif
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return;
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}
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void
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ficlFindfile(FICL_VM *pVM)
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{
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#ifndef TESTMAIN
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char *name;
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#endif
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char *type, *namep, *typep;
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struct preloaded_file* fp;
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int names, types;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 4, 1);
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#endif
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types = stackPopINT(pVM->pStack);
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typep = (char*) stackPopPtr(pVM->pStack);
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names = stackPopINT(pVM->pStack);
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namep = (char*) stackPopPtr(pVM->pStack);
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#ifndef TESTMAIN
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name = (char*) ficlMalloc(names+1);
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if (!name)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(name, namep, names);
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name[names] = '\0';
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type = (char*) ficlMalloc(types+1);
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if (!type)
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vmThrowErr(pVM, "Error: out of memory");
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strncpy(type, typep, types);
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type[types] = '\0';
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fp = file_findfile(name, type);
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#else
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fp = NULL;
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#endif
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stackPushPtr(pVM->pStack, fp);
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return;
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}
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#ifndef TESTMAIN
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#ifdef HAVE_PNP
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void
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ficlPnpdevices(FICL_VM *pVM)
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{
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static int pnp_devices_initted = 0;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 0, 1);
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#endif
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if(!pnp_devices_initted) {
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STAILQ_INIT(&pnp_devices);
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pnp_devices_initted = 1;
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}
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stackPushPtr(pVM->pStack, &pnp_devices);
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return;
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}
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void
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ficlPnphandlers(FICL_VM *pVM)
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{
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 0, 1);
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#endif
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stackPushPtr(pVM->pStack, pnphandlers);
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return;
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}
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#endif
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#endif /* ndef TESTMAIN */
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void
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ficlCcall(FICL_VM *pVM)
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{
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int (*func)(int, ...);
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int result, p[10];
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int nparam, i;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 2, 0);
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#endif
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func = stackPopPtr(pVM->pStack);
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nparam = stackPopINT(pVM->pStack);
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, nparam, 1);
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#endif
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for (i = 0; i < nparam; i++)
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p[i] = stackPopINT(pVM->pStack);
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result = func(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8],
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p[9]);
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stackPushINT(pVM->pStack, result);
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return;
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}
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/**************************************************************************
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f i c l E x e c F D
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** reads in text from file fd and passes it to ficlExec()
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* returns VM_OUTOFTEXT on success or the ficlExec() error code on
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* failure.
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*/
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#define nLINEBUF 256
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int ficlExecFD(FICL_VM *pVM, int fd)
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{
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char cp[nLINEBUF];
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int nLine = 0, rval = VM_OUTOFTEXT;
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char ch;
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CELL id;
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id = pVM->sourceID;
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pVM->sourceID.i = fd;
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/* feed each line to ficlExec */
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while (1) {
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int status, i;
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i = 0;
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while ((status = read(fd, &ch, 1)) > 0 && ch != '\n')
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cp[i++] = ch;
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nLine++;
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if (!i) {
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if (status < 1)
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break;
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continue;
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}
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rval = ficlExecC(pVM, cp, i);
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if(rval != VM_QUIT && rval != VM_USEREXIT && rval != VM_OUTOFTEXT)
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{
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pVM->sourceID = id;
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return rval;
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}
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}
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/*
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** Pass an empty line with SOURCE-ID == -1 to flush
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** any pending REFILLs (as required by FILE wordset)
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*/
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pVM->sourceID.i = -1;
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ficlExec(pVM, "");
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pVM->sourceID = id;
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return rval;
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}
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static void displayCellNoPad(FICL_VM *pVM)
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{
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CELL c;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 0);
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#endif
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c = stackPop(pVM->pStack);
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ltoa((c).i, pVM->pad, pVM->base);
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vmTextOut(pVM, pVM->pad, 0);
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return;
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}
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/* isdir? - Return whether an fd corresponds to a directory.
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*
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* isdir? ( fd -- bool )
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*/
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static void isdirQuestion(FICL_VM *pVM)
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{
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struct stat sb;
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FICL_INT flag;
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int fd;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 1);
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#endif
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fd = stackPopINT(pVM->pStack);
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flag = FICL_FALSE;
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do {
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if (fd < 0)
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break;
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if (fstat(fd, &sb) < 0)
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break;
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if (!S_ISDIR(sb.st_mode))
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break;
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flag = FICL_TRUE;
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} while (0);
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stackPushINT(pVM->pStack, flag);
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}
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/* fopen - open a file and return new fd on stack.
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*
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* fopen ( ptr count mode -- fd )
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*/
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static void pfopen(FICL_VM *pVM)
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{
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int mode, fd, count;
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char *ptr, *name;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 1);
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#endif
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mode = stackPopINT(pVM->pStack); /* get mode */
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count = stackPopINT(pVM->pStack); /* get count */
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ptr = stackPopPtr(pVM->pStack); /* get ptr */
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if ((count < 0) || (ptr == NULL)) {
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stackPushINT(pVM->pStack, -1);
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return;
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}
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/* ensure that the string is null terminated */
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name = (char *)malloc(count+1);
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bcopy(ptr,name,count);
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name[count] = 0;
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/* open the file */
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fd = open(name, mode);
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free(name);
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stackPushINT(pVM->pStack, fd);
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return;
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}
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/* fclose - close a file who's fd is on stack.
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*
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* fclose ( fd -- )
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*/
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static void pfclose(FICL_VM *pVM)
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{
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int fd;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 0);
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#endif
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fd = stackPopINT(pVM->pStack); /* get fd */
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if (fd != -1)
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close(fd);
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return;
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}
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/* fread - read file contents
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*
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* fread ( fd buf nbytes -- nread )
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*/
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static void pfread(FICL_VM *pVM)
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{
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int fd, len;
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char *buf;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 1);
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#endif
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len = stackPopINT(pVM->pStack); /* get number of bytes to read */
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buf = stackPopPtr(pVM->pStack); /* get buffer */
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fd = stackPopINT(pVM->pStack); /* get fd */
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if (len > 0 && buf && fd != -1)
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stackPushINT(pVM->pStack, read(fd, buf, len));
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else
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stackPushINT(pVM->pStack, -1);
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return;
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}
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/* freaddir - read directory contents
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*
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* freaddir ( fd -- ptr len TRUE | FALSE )
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*/
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static void pfreaddir(FICL_VM *pVM)
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{
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struct dirent *d;
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int fd;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 3);
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#endif
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fd = stackPopINT(pVM->pStack);
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d = readdirfd(fd);
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if (d != NULL) {
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stackPushPtr(pVM->pStack, d->d_name);
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stackPushINT(pVM->pStack, strlen(d->d_name));
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stackPushINT(pVM->pStack, FICL_TRUE);
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} else {
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stackPushINT(pVM->pStack, FICL_FALSE);
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}
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}
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/* fload - interpret file contents
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*
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* fload ( fd -- )
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*/
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static void pfload(FICL_VM *pVM)
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{
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int fd;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 1, 0);
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#endif
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fd = stackPopINT(pVM->pStack); /* get fd */
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if (fd != -1)
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ficlExecFD(pVM, fd);
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return;
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}
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/* fwrite - write file contents
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*
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* fwrite ( fd buf nbytes -- nwritten )
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*/
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static void pfwrite(FICL_VM *pVM)
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{
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int fd, len;
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char *buf;
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#if FICL_ROBUST > 1
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vmCheckStack(pVM, 3, 1);
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#endif
|
|
len = stackPopINT(pVM->pStack); /* get number of bytes to read */
|
|
buf = stackPopPtr(pVM->pStack); /* get buffer */
|
|
fd = stackPopINT(pVM->pStack); /* get fd */
|
|
if (len > 0 && buf && fd != -1)
|
|
stackPushINT(pVM->pStack, write(fd, buf, len));
|
|
else
|
|
stackPushINT(pVM->pStack, -1);
|
|
return;
|
|
}
|
|
|
|
/* fseek - seek to a new position in a file
|
|
*
|
|
* fseek ( fd ofs whence -- pos )
|
|
*/
|
|
static void pfseek(FICL_VM *pVM)
|
|
{
|
|
int fd, pos, whence;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 3, 1);
|
|
#endif
|
|
whence = stackPopINT(pVM->pStack);
|
|
pos = stackPopINT(pVM->pStack);
|
|
fd = stackPopINT(pVM->pStack);
|
|
stackPushINT(pVM->pStack, lseek(fd, pos, whence));
|
|
return;
|
|
}
|
|
|
|
/* key - get a character from stdin
|
|
*
|
|
* key ( -- char )
|
|
*/
|
|
static void key(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
stackPushINT(pVM->pStack, getchar());
|
|
return;
|
|
}
|
|
|
|
/* key? - check for a character from stdin (FACILITY)
|
|
*
|
|
* key? ( -- flag )
|
|
*/
|
|
static void keyQuestion(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 0, 1);
|
|
#endif
|
|
#ifdef TESTMAIN
|
|
/* XXX Since we don't fiddle with termios, let it always succeed... */
|
|
stackPushINT(pVM->pStack, FICL_TRUE);
|
|
#else
|
|
/* But here do the right thing. */
|
|
stackPushINT(pVM->pStack, ischar()? FICL_TRUE : FICL_FALSE);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
/* seconds - gives number of seconds since beginning of time
|
|
*
|
|
* beginning of time is defined as:
|
|
*
|
|
* BTX - number of seconds since midnight
|
|
* FreeBSD - number of seconds since Jan 1 1970
|
|
*
|
|
* seconds ( -- u )
|
|
*/
|
|
static void pseconds(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,0,1);
|
|
#endif
|
|
stackPushUNS(pVM->pStack, (FICL_UNS) time(NULL));
|
|
return;
|
|
}
|
|
|
|
/* ms - wait at least that many milliseconds (FACILITY)
|
|
*
|
|
* ms ( u -- )
|
|
*
|
|
*/
|
|
static void ms(FICL_VM *pVM)
|
|
{
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM,1,0);
|
|
#endif
|
|
#ifdef TESTMAIN
|
|
usleep(stackPopUNS(pVM->pStack)*1000);
|
|
#else
|
|
delay(stackPopUNS(pVM->pStack)*1000);
|
|
#endif
|
|
return;
|
|
}
|
|
|
|
/* fkey - get a character from a file
|
|
*
|
|
* fkey ( file -- char )
|
|
*/
|
|
static void fkey(FICL_VM *pVM)
|
|
{
|
|
int i, fd;
|
|
char ch;
|
|
|
|
#if FICL_ROBUST > 1
|
|
vmCheckStack(pVM, 1, 1);
|
|
#endif
|
|
fd = stackPopINT(pVM->pStack);
|
|
i = read(fd, &ch, 1);
|
|
stackPushINT(pVM->pStack, i > 0 ? ch : -1);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
** Retrieves free space remaining on the dictionary
|
|
*/
|
|
|
|
static void freeHeap(FICL_VM *pVM)
|
|
{
|
|
stackPushINT(pVM->pStack, dictCellsAvail(ficlGetDict(pVM->pSys)));
|
|
}
|
|
|
|
|
|
/******************* Increase dictionary size on-demand ******************/
|
|
|
|
static void ficlDictThreshold(FICL_VM *pVM)
|
|
{
|
|
stackPushPtr(pVM->pStack, &dictThreshold);
|
|
}
|
|
|
|
static void ficlDictIncrease(FICL_VM *pVM)
|
|
{
|
|
stackPushPtr(pVM->pStack, &dictIncrease);
|
|
}
|
|
|
|
|
|
/**************************************************************************
|
|
f i c l C o m p i l e P l a t f o r m
|
|
** Build FreeBSD platform extensions into the system dictionary
|
|
**************************************************************************/
|
|
void ficlCompilePlatform(FICL_SYSTEM *pSys)
|
|
{
|
|
FICL_DICT *dp = pSys->dp;
|
|
assert (dp);
|
|
|
|
dictAppendWord(dp, ".#", displayCellNoPad, FW_DEFAULT);
|
|
dictAppendWord(dp, "isdir?", isdirQuestion, FW_DEFAULT);
|
|
dictAppendWord(dp, "fopen", pfopen, FW_DEFAULT);
|
|
dictAppendWord(dp, "fclose", pfclose, FW_DEFAULT);
|
|
dictAppendWord(dp, "fread", pfread, FW_DEFAULT);
|
|
dictAppendWord(dp, "freaddir", pfreaddir, FW_DEFAULT);
|
|
dictAppendWord(dp, "fload", pfload, FW_DEFAULT);
|
|
dictAppendWord(dp, "fkey", fkey, FW_DEFAULT);
|
|
dictAppendWord(dp, "fseek", pfseek, FW_DEFAULT);
|
|
dictAppendWord(dp, "fwrite", pfwrite, FW_DEFAULT);
|
|
dictAppendWord(dp, "key", key, FW_DEFAULT);
|
|
dictAppendWord(dp, "key?", keyQuestion, FW_DEFAULT);
|
|
dictAppendWord(dp, "ms", ms, FW_DEFAULT);
|
|
dictAppendWord(dp, "seconds", pseconds, FW_DEFAULT);
|
|
dictAppendWord(dp, "heap?", freeHeap, FW_DEFAULT);
|
|
dictAppendWord(dp, "dictthreshold", ficlDictThreshold, FW_DEFAULT);
|
|
dictAppendWord(dp, "dictincrease", ficlDictIncrease, FW_DEFAULT);
|
|
|
|
dictAppendWord(dp, "setenv", ficlSetenv, FW_DEFAULT);
|
|
dictAppendWord(dp, "setenv?", ficlSetenvq, FW_DEFAULT);
|
|
dictAppendWord(dp, "getenv", ficlGetenv, FW_DEFAULT);
|
|
dictAppendWord(dp, "unsetenv", ficlUnsetenv, FW_DEFAULT);
|
|
dictAppendWord(dp, "copyin", ficlCopyin, FW_DEFAULT);
|
|
dictAppendWord(dp, "copyout", ficlCopyout, FW_DEFAULT);
|
|
dictAppendWord(dp, "findfile", ficlFindfile, FW_DEFAULT);
|
|
dictAppendWord(dp, "ccall", ficlCcall, FW_DEFAULT);
|
|
#ifndef TESTMAIN
|
|
#ifdef __i386__
|
|
dictAppendWord(dp, "outb", ficlOutb, FW_DEFAULT);
|
|
dictAppendWord(dp, "inb", ficlInb, FW_DEFAULT);
|
|
#endif
|
|
#ifdef HAVE_PNP
|
|
dictAppendWord(dp, "pnpdevices",ficlPnpdevices, FW_DEFAULT);
|
|
dictAppendWord(dp, "pnphandlers",ficlPnphandlers, FW_DEFAULT);
|
|
#endif
|
|
#endif
|
|
|
|
#if defined(PC98)
|
|
ficlSetEnv(pSys, "arch-pc98", FICL_TRUE);
|
|
#elif defined(__i386__)
|
|
ficlSetEnv(pSys, "arch-i386", FICL_TRUE);
|
|
ficlSetEnv(pSys, "arch-ia64", FICL_FALSE);
|
|
ficlSetEnv(pSys, "arch-powerpc", FICL_FALSE);
|
|
#elif defined(__ia64__)
|
|
ficlSetEnv(pSys, "arch-i386", FICL_FALSE);
|
|
ficlSetEnv(pSys, "arch-ia64", FICL_TRUE);
|
|
ficlSetEnv(pSys, "arch-powerpc", FICL_FALSE);
|
|
#elif defined(__powerpc__)
|
|
ficlSetEnv(pSys, "arch-i386", FICL_FALSE);
|
|
ficlSetEnv(pSys, "arch-ia64", FICL_FALSE);
|
|
ficlSetEnv(pSys, "arch-powerpc", FICL_TRUE);
|
|
#endif
|
|
|
|
return;
|
|
}
|
|
|