229 lines
3.5 KiB
C
229 lines
3.5 KiB
C
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
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/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
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/* All Rights Reserved */
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/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF */
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/* UNIX System Laboratories, Inc. */
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/* The copyright notice above does not evidence any */
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/* actual or intended publication of such source code. */
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#ident "@(#)sh:mode.h 1.8.4.1"
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/*
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* UNIX shell
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*/
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#include <sgidefs.h>
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#ifdef pdp11
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typedef char BOOL;
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#else
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typedef short BOOL;
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#endif
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#if (_MIPS_SIM == _MIPS_SIM_ABI32)
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#define ALIGN 4
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#else
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#define ALIGN 8
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#endif
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#define BYTESPERWORD (sizeof (char *))
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#define NIL ((char*)0)
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/* the following nonsense is required
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* because casts turn an Lvalue
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* into an Rvalue so two cheats
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* are necessary, one for each context.
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*/
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#define Rcheat(a) ((int)(a))
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/* address puns for storage allocation */
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typedef union
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{
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struct forknod *_forkptr;
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struct comnod *_comptr;
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struct fndnod *_fndptr;
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struct parnod *_parptr;
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struct ifnod *_ifptr;
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struct whnod *_whptr;
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struct fornod *_forptr;
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struct lstnod *_lstptr;
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struct blk *_blkptr;
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struct namnod *_namptr;
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char *_bytptr;
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} address;
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/* heap storage */
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struct blk
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{
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union {
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struct blk *word;
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#if (_MIPS_SIM == _MIPS_SIM_NABI32)
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__uint64_t pad;
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#endif
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} ag;
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};
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#define BUFSIZE 1024
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struct fileblk
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{
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int fdes;
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unsigned flin;
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BOOL feof;
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unsigned fsiz;
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unsigned char *fnxt;
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unsigned char *fend;
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unsigned char **feval;
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struct fileblk *fstak;
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unsigned char fbuf[BUFSIZE];
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};
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struct tempblk
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{
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int fdes;
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struct tempblk *fstak;
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};
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/* for files not used with file descriptors */
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struct filehdr
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{
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int fdes;
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unsigned flin;
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BOOL feof;
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unsigned char fsiz;
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unsigned char *fnxt;
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unsigned char *fend;
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unsigned char **feval;
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struct fileblk *fstak;
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unsigned char _fbuf[1];
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};
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struct sysnod
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{
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char *sysnam;
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int sysval;
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};
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/* this node is a proforma for those that follow */
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struct trenod
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{
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int tretyp;
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struct ionod *treio;
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};
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/* dummy for access only */
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struct argnod
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{
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struct argnod *argnxt;
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unsigned char argval[1];
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};
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struct dolnod
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{
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struct dolnod *dolnxt;
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int doluse;
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unsigned char **dolarg;
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};
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struct forknod
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{
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int forktyp;
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struct ionod *forkio;
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struct trenod *forktre;
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};
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struct comnod
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{
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int comtyp;
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struct ionod *comio;
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struct argnod *comarg;
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struct argnod *comset;
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};
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struct fndnod
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{
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int fndtyp;
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unsigned char *fndnam;
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struct trenod *fndval;
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};
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struct ifnod
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{
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int iftyp;
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struct trenod *iftre;
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struct trenod *thtre;
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struct trenod *eltre;
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};
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struct whnod
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{
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int whtyp;
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struct trenod *whtre;
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struct trenod *dotre;
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};
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struct fornod
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{
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int fortyp;
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struct trenod *fortre;
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unsigned char *fornam;
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struct comnod *forlst;
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};
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struct swnod
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{
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int swtyp;
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unsigned char *swarg;
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struct regnod *swlst;
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};
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struct regnod
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{
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struct argnod *regptr;
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struct trenod *regcom;
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struct regnod *regnxt;
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};
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struct parnod
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{
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int partyp;
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struct trenod *partre;
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};
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struct lstnod
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{
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int lsttyp;
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struct trenod *lstlef;
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struct trenod *lstrit;
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};
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struct ionod
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{
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int iofile;
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unsigned char *ioname;
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unsigned char *iolink;
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struct ionod *ionxt;
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struct ionod *iolst;
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};
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struct fdsave
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{
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int org_fd;
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int dup_fd;
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};
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#define fndptr(x) ((struct fndnod *)x)
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#define comptr(x) ((struct comnod *)x)
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#define forkptr(x) ((struct forknod *)x)
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#define parptr(x) ((struct parnod *)x)
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#define lstptr(x) ((struct lstnod *)x)
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#define forptr(x) ((struct fornod *)x)
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#define whptr(x) ((struct whnod *)x)
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#define ifptr(x) ((struct ifnod *)x)
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#define swptr(x) ((struct swnod *)x)
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