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https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
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492 lines
10 KiB
C
492 lines
10 KiB
C
/****************************************************************
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Copyright 1990, 1993 - 1995 by AT&T Bell Laboratories and Bellcore.
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Permission to use, copy, modify, and distribute this software
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and its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the names of AT&T Bell Laboratories or
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Bellcore or any of their entities not be used in advertising or
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publicity pertaining to distribution of the software without
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specific, written prior permission.
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AT&T and Bellcore disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall AT&T or Bellcore be liable for
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any special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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****************************************************************/
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#include "defs.h"
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/* ROUTINES CALLED DURING DATA AND PARAMETER STATEMENT PROCESSING */
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static char datafmt[] = "%s\t%09ld\t%d";
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static char *cur_varname;
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/* another initializer, called from parser */
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void
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#ifdef KR_headers
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dataval(repp, valp)
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register expptr repp;
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register expptr valp;
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#else
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dataval(register expptr repp, register expptr valp)
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#endif
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{
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int i, nrep;
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ftnint elen;
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register Addrp p;
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if (parstate < INDATA) {
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frexpr(repp);
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goto ret;
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}
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if(repp == NULL)
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nrep = 1;
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else if (ISICON(repp) && repp->constblock.Const.ci >= 0)
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nrep = repp->constblock.Const.ci;
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else
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{
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err("invalid repetition count in DATA statement");
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frexpr(repp);
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goto ret;
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}
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frexpr(repp);
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if( ! ISCONST(valp) ) {
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if (valp->tag == TADDR
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&& valp->addrblock.uname_tag == UNAM_CONST) {
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/* kludge */
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frexpr(valp->addrblock.memoffset);
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valp->tag = TCONST;
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}
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else {
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err("non-constant initializer");
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goto ret;
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}
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}
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if(toomanyinit) goto ret;
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for(i = 0 ; i < nrep ; ++i)
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{
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p = nextdata(&elen);
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if(p == NULL)
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{
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err("too many initializers");
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toomanyinit = YES;
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goto ret;
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}
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setdata((Addrp)p, (Constp)valp, elen);
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frexpr((expptr)p);
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}
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ret:
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frexpr(valp);
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}
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Addrp
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#ifdef KR_headers
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nextdata(elenp)
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ftnint *elenp;
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#else
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nextdata(ftnint *elenp)
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#endif
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{
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register struct Impldoblock *ip;
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struct Primblock *pp;
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register Namep np;
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register struct Rplblock *rp;
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tagptr p;
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expptr neltp;
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register expptr q;
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int skip;
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ftnint off, vlen;
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while(curdtp)
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{
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p = (tagptr)curdtp->datap;
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if(p->tag == TIMPLDO)
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{
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ip = &(p->impldoblock);
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if(ip->implb==NULL || ip->impub==NULL || ip->varnp==NULL)
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fatali("bad impldoblock 0%o", (int) ip);
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if(ip->isactive)
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ip->varvp->Const.ci += ip->impdiff;
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else
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{
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q = fixtype(cpexpr(ip->implb));
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if( ! ISICON(q) )
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goto doerr;
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ip->varvp = (Constp) q;
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if(ip->impstep)
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{
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q = fixtype(cpexpr(ip->impstep));
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if( ! ISICON(q) )
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goto doerr;
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ip->impdiff = q->constblock.Const.ci;
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frexpr(q);
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}
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else
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ip->impdiff = 1;
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q = fixtype(cpexpr(ip->impub));
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if(! ISICON(q))
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goto doerr;
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ip->implim = q->constblock.Const.ci;
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frexpr(q);
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ip->isactive = YES;
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rp = ALLOC(Rplblock);
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rp->rplnextp = rpllist;
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rpllist = rp;
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rp->rplnp = ip->varnp;
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rp->rplvp = (expptr) (ip->varvp);
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rp->rpltag = TCONST;
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}
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if( (ip->impdiff>0 && (ip->varvp->Const.ci <= ip->implim))
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|| (ip->impdiff<0 && (ip->varvp->Const.ci >= ip->implim)) )
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{ /* start new loop */
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curdtp = ip->datalist;
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goto next;
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}
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/* clean up loop */
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if(rpllist)
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{
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rp = rpllist;
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rpllist = rpllist->rplnextp;
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free( (charptr) rp);
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}
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else
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Fatal("rpllist empty");
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frexpr((expptr)ip->varvp);
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ip->isactive = NO;
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curdtp = curdtp->nextp;
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goto next;
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}
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pp = (struct Primblock *) p;
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np = pp->namep;
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cur_varname = np->fvarname;
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skip = YES;
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if(p->primblock.argsp==NULL && np->vdim!=NULL)
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{ /* array initialization */
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q = (expptr) mkaddr(np);
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off = typesize[np->vtype] * curdtelt;
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if(np->vtype == TYCHAR)
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off *= np->vleng->constblock.Const.ci;
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q->addrblock.memoffset =
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mkexpr(OPPLUS, q->addrblock.memoffset, mkintcon(off) );
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if( (neltp = np->vdim->nelt) && ISCONST(neltp))
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{
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if(++curdtelt < neltp->constblock.Const.ci)
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skip = NO;
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}
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else
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err("attempt to initialize adjustable array");
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}
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else
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q = mklhs((struct Primblock *)cpexpr((expptr)pp), 0);
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if(skip)
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{
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curdtp = curdtp->nextp;
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curdtelt = 0;
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}
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if(q->headblock.vtype == TYCHAR)
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if(ISICON(q->headblock.vleng))
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*elenp = q->headblock.vleng->constblock.Const.ci;
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else {
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err("initialization of string of nonconstant length");
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continue;
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}
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else *elenp = typesize[q->headblock.vtype];
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if (np->vstg == STGBSS) {
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vlen = np->vtype==TYCHAR
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? np->vleng->constblock.Const.ci
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: typesize[np->vtype];
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if(vlen > 0)
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np->vstg = STGINIT;
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}
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return( (Addrp) q );
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doerr:
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err("nonconstant implied DO parameter");
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frexpr(q);
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curdtp = curdtp->nextp;
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next:
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curdtelt = 0;
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}
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return(NULL);
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}
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LOCAL FILEP dfile;
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void
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#ifdef KR_headers
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setdata(varp, valp, elen)
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register Addrp varp;
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register Constp valp;
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ftnint elen;
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#else
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setdata(register Addrp varp, register Constp valp, ftnint elen)
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#endif
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{
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struct Constblock con;
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register int type;
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int i, k, valtype;
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ftnint offset;
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char *varname;
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static Addrp badvar;
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register unsigned char *s;
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static int last_lineno;
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static char *last_varname;
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if (varp->vstg == STGCOMMON) {
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if (!(dfile = blkdfile))
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dfile = blkdfile = opf(blkdfname, textwrite);
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}
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else {
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if (procclass == CLBLOCK) {
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if (varp != badvar) {
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badvar = varp;
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warn1("%s is not in a COMMON block",
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varp->uname_tag == UNAM_NAME
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? varp->user.name->fvarname
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: "???");
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}
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return;
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}
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if (!(dfile = initfile))
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dfile = initfile = opf(initfname, textwrite);
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}
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varname = dataname(varp->vstg, varp->memno);
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offset = varp->memoffset->constblock.Const.ci;
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type = varp->vtype;
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valtype = valp->vtype;
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if(type!=TYCHAR && valtype==TYCHAR)
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{
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if(! ftn66flag
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&& (last_varname != cur_varname || last_lineno != lineno)) {
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/* prevent multiple warnings */
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last_lineno = lineno;
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warn1(
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"non-character datum %.42s initialized with character string",
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last_varname = cur_varname);
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}
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varp->vleng = ICON(typesize[type]);
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varp->vtype = type = TYCHAR;
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}
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else if( (type==TYCHAR && valtype!=TYCHAR) ||
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(cktype(OPASSIGN,type,valtype) == TYERROR) )
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{
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err("incompatible types in initialization");
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return;
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}
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if(type == TYADDR)
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con.Const.ci = valp->Const.ci;
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else if(type != TYCHAR)
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{
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if(valtype == TYUNKNOWN)
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con.Const.ci = valp->Const.ci;
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else consconv(type, &con, valp);
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}
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k = 1;
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switch(type)
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{
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case TYLOGICAL:
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case TYINT1:
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case TYLOGICAL1:
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case TYLOGICAL2:
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case TYSHORT:
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case TYLONG:
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#ifdef TYQUAD
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case TYQUAD:
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#endif
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dataline(varname, offset, type);
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prconi(dfile, con.Const.ci);
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break;
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case TYADDR:
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dataline(varname, offset, type);
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prcona(dfile, con.Const.ci);
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break;
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case TYCOMPLEX:
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case TYDCOMPLEX:
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k = 2;
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case TYREAL:
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case TYDREAL:
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dataline(varname, offset, type);
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prconr(dfile, &con, k);
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break;
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case TYCHAR:
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k = valp -> vleng -> constblock.Const.ci;
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if (elen < k)
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k = elen;
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s = (unsigned char *)valp->Const.ccp;
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for(i = 0 ; i < k ; ++i) {
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dataline(varname, offset++, TYCHAR);
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fprintf(dfile, "\t%d\n", *s++);
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}
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k = elen - valp->vleng->constblock.Const.ci;
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if(k > 0) {
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dataline(varname, offset, TYBLANK);
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fprintf(dfile, "\t%d\n", k);
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}
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break;
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default:
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badtype("setdata", type);
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}
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}
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/*
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output form of name is padded with blanks and preceded
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with a storage class digit
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*/
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char*
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#ifdef KR_headers
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dataname(stg, memno)
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int stg;
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long memno;
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#else
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dataname(int stg, long memno)
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#endif
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{
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static char varname[64];
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register char *s, *t;
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char buf[16];
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if (stg == STGCOMMON) {
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varname[0] = '2';
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sprintf(s = buf, "Q.%ld", memno);
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}
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else {
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varname[0] = stg==STGEQUIV ? '1' : '0';
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s = memname(stg, memno);
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}
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t = varname + 1;
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while(*t++ = *s++);
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*t = 0;
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return(varname);
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}
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void
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#ifdef KR_headers
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frdata(p0)
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chainp p0;
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#else
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frdata(chainp p0)
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#endif
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{
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register struct Chain *p;
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register tagptr q;
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for(p = p0 ; p ; p = p->nextp)
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{
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q = (tagptr)p->datap;
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if(q->tag == TIMPLDO)
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{
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if(q->impldoblock.isbusy)
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return; /* circular chain completed */
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q->impldoblock.isbusy = YES;
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frdata(q->impldoblock.datalist);
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free( (charptr) q);
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}
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else
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frexpr(q);
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}
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frchain( &p0);
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}
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void
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#ifdef KR_headers
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dataline(varname, offset, type)
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char *varname;
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ftnint offset;
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int type;
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#else
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dataline(char *varname, ftnint offset, int type)
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#endif
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{
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fprintf(dfile, datafmt, varname, offset, type);
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}
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void
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#ifdef KR_headers
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make_param(p, e)
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register struct Paramblock *p;
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expptr e;
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#else
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make_param(register struct Paramblock *p, expptr e)
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#endif
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{
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register expptr q;
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struct Constblock qc;
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if (p->vstg == STGARG)
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errstr("Dummy argument %.50s appears in a parameter statement.",
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p->fvarname);
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p->vclass = CLPARAM;
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impldcl((Namep)p);
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if (e->headblock.vtype != TYCHAR)
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e = putx(fixtype(e));
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p->paramval = q = mkconv(p->vtype, e);
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if (p->vtype == TYCHAR) {
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if (q->tag == TEXPR)
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p->paramval = q = fixexpr((Exprp)q);
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if (q->tag == TADDR && q->addrblock.uname_tag == UNAM_CONST) {
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qc.Const = q->addrblock.user.Const;
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qc.tag = TCONST;
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qc.vtype = q->addrblock.vtype;
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qc.vleng = q->addrblock.vleng;
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q = (expptr)&qc;
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}
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if (!ISCONST(q) || q->constblock.vtype != TYCHAR) {
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errstr("invalid value for character parameter %s",
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p->fvarname);
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return;
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}
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if (!(e = p->vleng))
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p->vleng = ICON(q->constblock.vleng->constblock.Const.ci
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+ q->constblock.Const.ccp1.blanks);
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else if (q->constblock.vleng->constblock.Const.ci
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> e->constblock.Const.ci) {
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q->constblock.vleng->constblock.Const.ci
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= e->constblock.Const.ci;
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q->constblock.Const.ccp1.blanks = 0;
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}
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else
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q->constblock.Const.ccp1.blanks
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= e->constblock.Const.ci
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- q->constblock.vleng->constblock.Const.ci;
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}
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}
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