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path: root/usr/src/lib/libshell/common/sh/trestore.c
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Diffstat (limited to 'usr/src/lib/libshell/common/sh/trestore.c')
-rw-r--r--usr/src/lib/libshell/common/sh/trestore.c349
1 files changed, 0 insertions, 349 deletions
diff --git a/usr/src/lib/libshell/common/sh/trestore.c b/usr/src/lib/libshell/common/sh/trestore.c
deleted file mode 100644
index 1034f1f3f9..0000000000
--- a/usr/src/lib/libshell/common/sh/trestore.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/***********************************************************************
-* *
-* This software is part of the ast package *
-* Copyright (c) 1982-2010 AT&T Intellectual Property *
-* and is licensed under the *
-* Common Public License, Version 1.0 *
-* by AT&T Intellectual Property *
-* *
-* A copy of the License is available at *
-* http://www.opensource.org/licenses/cpl1.0.txt *
-* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
-* *
-* Information and Software Systems Research *
-* AT&T Research *
-* Florham Park NJ *
-* *
-* David Korn <dgk@research.att.com> *
-* *
-***********************************************************************/
-#pragma prototyped
-/*
- * David Korn
- * AT&T Labs
- *
- * shell intermediate code reader
- *
- */
-
-#include "defs.h"
-#include "shnodes.h"
-#include "path.h"
-#include "io.h"
-#include <ccode.h>
-
-static struct dolnod *r_comlist(Shell_t*);
-static struct argnod *r_arg(Shell_t*);
-static struct ionod *r_redirect(Shell_t*);
-static struct regnod *r_switch(Shell_t*);
-static Shnode_t *r_tree(Shell_t*);
-static char *r_string(Stk_t*);
-static void r_comarg(Shell_t*,struct comnod*);
-
-static Sfio_t *infile;
-
-#define getnode(s,type) ((Shnode_t*)stkalloc((s),sizeof(struct type)))
-
-Shnode_t *sh_trestore(Shell_t *shp,Sfio_t *in)
-{
- Shnode_t *t;
- infile = in;
- t = r_tree(shp);
- return(t);
-}
-/*
- * read in a shell tree
- */
-static Shnode_t *r_tree(Shell_t *shp)
-{
- long l = sfgetl(infile);
- register int type;
- register Shnode_t *t=0;
- if(l<0)
- return(t);
- type = l;
- switch(type&COMMSK)
- {
- case TTIME:
- case TPAR:
- t = getnode(shp->stk,parnod);
- t->par.partre = r_tree(shp);
- break;
- case TCOM:
- t = getnode(shp->stk,comnod);
- t->tre.tretyp = type;
- r_comarg(shp,(struct comnod*)t);
- break;
- case TSETIO:
- case TFORK:
- t = getnode(shp->stk,forknod);
- t->fork.forkline = sfgetu(infile);
- t->fork.forktre = r_tree(shp);
- t->fork.forkio = r_redirect(shp);
- break;
- case TIF:
- t = getnode(shp->stk,ifnod);
- t->if_.iftre = r_tree(shp);
- t->if_.thtre = r_tree(shp);
- t->if_.eltre = r_tree(shp);
- break;
- case TWH:
- t = getnode(shp->stk,whnod);
- t->wh.whinc = (struct arithnod*)r_tree(shp);
- t->wh.whtre = r_tree(shp);
- t->wh.dotre = r_tree(shp);
- break;
- case TLST:
- case TAND:
- case TORF:
- case TFIL:
- t = getnode(shp->stk,lstnod);
- t->lst.lstlef = r_tree(shp);
- t->lst.lstrit = r_tree(shp);
- break;
- case TARITH:
- t = getnode(shp->stk,arithnod);
- t->ar.arline = sfgetu(infile);
- t->ar.arexpr = r_arg(shp);
- t->ar.arcomp = 0;
- if((t->ar.arexpr)->argflag&ARG_RAW)
- t->ar.arcomp = sh_arithcomp((t->ar.arexpr)->argval);
- break;
- case TFOR:
- t = getnode(shp->stk,fornod);
- t->for_.forline = 0;
- if(type&FLINENO)
- t->for_.forline = sfgetu(infile);
- t->for_.fortre = r_tree(shp);
- t->for_.fornam = r_string(shp->stk);
- t->for_.forlst = (struct comnod*)r_tree(shp);
- break;
- case TSW:
- t = getnode(shp->stk,swnod);
- t->sw.swline = 0;
- if(type&FLINENO)
- t->sw.swline = sfgetu(infile);
- t->sw.swarg = r_arg(shp);
- if(type&COMSCAN)
- t->sw.swio = r_redirect(shp);
- else
- t->sw.swio = 0;
- t->sw.swlst = r_switch(shp);
- break;
- case TFUN:
- {
- Stak_t *savstak;
- struct slnod *slp;
- struct functnod *fp;
- t = getnode(shp->stk,functnod);
- t->funct.functloc = -1;
- t->funct.functline = sfgetu(infile);
- t->funct.functnam = r_string(shp->stk);
- savstak = stakcreate(STAK_SMALL);
- savstak = stakinstall(savstak, 0);
- slp = (struct slnod*)stkalloc(shp->stk,sizeof(struct slnod)+sizeof(struct functnod));
- slp->slchild = 0;
- slp->slnext = shp->st.staklist;
- shp->st.staklist = 0;
- fp = (struct functnod*)(slp+1);
- memset(fp, 0, sizeof(*fp));
- fp->functtyp = TFUN|FAMP;
- if(shp->st.filename)
- fp->functnam = stkcopy(shp->stk,shp->st.filename);
- t->funct.functtre = r_tree(shp);
- t->funct.functstak = slp;
- slp->slptr = stakinstall(savstak,0);
- slp->slchild = shp->st.staklist;
- t->funct.functargs = (struct comnod*)r_tree(shp);
- break;
- }
- case TTST:
- t = getnode(shp->stk,tstnod);
- t->tst.tstline = sfgetu(infile);
- if((type&TPAREN)==TPAREN)
- t->lst.lstlef = r_tree(shp);
- else
- {
- t->lst.lstlef = (Shnode_t*)r_arg(shp);
- if((type&TBINARY))
- t->lst.lstrit = (Shnode_t*)r_arg(shp);
- }
- }
- if(t)
- t->tre.tretyp = type;
- return(t);
-}
-
-static struct argnod *r_arg(Shell_t *shp)
-{
- register struct argnod *ap=0, *apold, *aptop=0;
- register long l;
- Stk_t *stkp=shp->stk;
- while((l=sfgetu(infile))>0)
- {
- ap = (struct argnod*)stkseek(stkp,(unsigned)l+ARGVAL);
- if(!aptop)
- aptop = ap;
- else
- apold->argnxt.ap = ap;
- if(--l > 0)
- {
- sfread(infile,ap->argval,(size_t)l);
- ccmaps(ap->argval, l, CC_ASCII, CC_NATIVE);
- }
- ap->argval[l] = 0;
- ap->argchn.cp = 0;
- ap->argflag = sfgetc(infile);
- if((ap->argflag&ARG_MESSAGE) && *ap->argval)
- {
- /* replace international messages */
- ap = sh_endword(shp,1);
- ap->argflag &= ~ARG_MESSAGE;
- if(!(ap->argflag&(ARG_MAC|ARG_EXP)))
- ap = sh_endword(shp,0);
- else
- {
- ap = (struct argnod*)stkfreeze(stkp,0);
- if(ap->argflag==0)
- ap->argflag = ARG_RAW;
- }
- }
- else
- ap = (struct argnod*)stkfreeze(stkp,0);
- if(*ap->argval==0 && (ap->argflag&~(ARG_APPEND|ARG_MESSAGE|ARG_QUOTED))==0)
- {
- struct fornod *fp = (struct fornod*)getnode(shp->stk,fornod);
- fp->fortyp = sfgetu(infile);
- fp->fortre = r_tree(shp);
- fp->fornam = ap->argval+1;
- ap->argchn.ap = (struct argnod*)fp;
- }
- apold = ap;
- }
- if(ap)
- ap->argnxt.ap = 0;
- return(aptop);
-}
-
-static struct ionod *r_redirect(Shell_t* shp)
-{
- register long l;
- register struct ionod *iop=0, *iopold, *ioptop=0;
- while((l=sfgetl(infile))>=0)
- {
- iop = (struct ionod*)getnode(shp->stk,ionod);
- if(!ioptop)
- ioptop = iop;
- else
- iopold->ionxt = iop;
- iop->iofile = l;
- iop->ioname = r_string(shp->stk);
- if(iop->iodelim = r_string(shp->stk))
- {
- iop->iosize = sfgetl(infile);
- if(shp->heredocs)
- iop->iooffset = sfseek(shp->heredocs,(off_t)0,SEEK_END);
- else
- {
- shp->heredocs = sftmp(512);
- iop->iooffset = 0;
- }
- sfmove(infile,shp->heredocs, iop->iosize, -1);
- }
- iopold = iop;
- if(iop->iofile&IOVNM)
- iop->iovname = r_string(shp->stk);
- else
- iop->iovname = 0;
- iop->iofile &= ~IOVNM;
- }
- if(iop)
- iop->ionxt = 0;
- return(ioptop);
-}
-
-static void r_comarg(Shell_t *shp,struct comnod *com)
-{
- char *cmdname=0;
- com->comio = r_redirect(shp);
- com->comset = r_arg(shp);
- com->comstate = 0;
- if(com->comtyp&COMSCAN)
- {
- com->comarg = r_arg(shp);
- if(com->comarg->argflag==ARG_RAW)
- cmdname = com->comarg->argval;
- }
- else if(com->comarg = (struct argnod*)r_comlist(shp))
- cmdname = ((struct dolnod*)(com->comarg))->dolval[ARG_SPARE];
- com->comline = sfgetu(infile);
- com->comnamq = 0;
- if(cmdname)
- {
- char *cp;
- com->comnamp = (void*)nv_search(cmdname,shp->fun_tree,0);
- if(com->comnamp && (cp =strrchr(cmdname+1,'.')))
- {
- *cp = 0;
- com->comnamp = (void*)nv_open(cmdname,shp->var_tree,NV_VARNAME|NV_NOADD|NV_NOARRAY);
- *cp = '.';
- }
- }
- else
- com->comnamp = 0;
-}
-
-static struct dolnod *r_comlist(Shell_t *shp)
-{
- register struct dolnod *dol=0;
- register long l;
- register char **argv;
- if((l=sfgetl(infile))>0)
- {
- dol = (struct dolnod*)stkalloc(shp->stk,sizeof(struct dolnod) + sizeof(char*)*(l+ARG_SPARE));
- dol->dolnum = l;
- dol->dolbot = ARG_SPARE;
- argv = dol->dolval+ARG_SPARE;
- while(*argv++ = r_string(shp->stk));
- }
- return(dol);
-}
-
-static struct regnod *r_switch(Shell_t *shp)
-{
- register long l;
- struct regnod *reg=0,*regold,*regtop=0;
- while((l=sfgetl(infile))>=0)
- {
- reg = (struct regnod*)getnode(shp->stk,regnod);
- if(!regtop)
- regtop = reg;
- else
- regold->regnxt = reg;
- reg->regflag = l;
- reg->regptr = r_arg(shp);
- reg->regcom = r_tree(shp);
- regold = reg;
- }
- if(reg)
- reg->regnxt = 0;
- return(regtop);
-}
-
-static char *r_string(Stk_t *stkp)
-{
- register Sfio_t *in = infile;
- register unsigned long l = sfgetu(in);
- register char *ptr;
- if(l == 0)
- return(NIL(char*));
- ptr = stkalloc(stkp,(unsigned)l);
- if(--l > 0)
- {
- if(sfread(in,ptr,(size_t)l)!=(size_t)l)
- return(NIL(char*));
- ccmaps(ptr, l, CC_ASCII, CC_NATIVE);
- }
- ptr[l] = 0;
- return(ptr);
-}