lwall@jato.Jpl.Nasa.Gov (Larry Wall) (09/03/89)
#! /bin/sh
# Make a new directory for the perl sources, cd to it, and run kits 1
# thru 23 through sh. When all 23 kits have been run, read README.
echo "This is perl 3.0 kit 5 (of 23). If kit 5 is complete, the line"
echo '"'"End of kit 5 (of 23)"'" will echo at the end.'
echo ""
export PATH || (echo "You didn't use sh, you clunch." ; kill $$)
mkdir t 2>/dev/null
echo Extracting eval.c
sed >eval.c <<'!STUFFY!FUNK!' -e 's/X//'
X/* $Header: eval.c,v 2.0.1.8 88/11/18 23:54:42 lwall Locked $
X *
X * Copyright (c) 1989, Larry Wall
X *
X * You may distribute under the terms of the GNU General Public License
X * as specified in the README file that comes with the perl 3.0 kit.
X *
X * $Log: eval.c,v $
X */
X
X#include "EXTERN.h"
X#include "perl.h"
X
X#include <signal.h>
X#include <errno.h>
X
Xextern int errno;
X
X#ifdef VOIDSIG
Xstatic void (*ihand)();
Xstatic void (*qhand)();
X#else
Xstatic int (*ihand)();
Xstatic int (*qhand)();
X#endif
X
XARG *debarg;
XSTR str_args;
Xstatic STAB *stab2;
Xstatic STIO *stio;
Xstatic struct lstring *lstr;
Xstatic char old_record_separator;
X
Xdouble sin(), cos(), atan2(), pow();
X
Xextern int sys_nerr;
Xextern char *sys_errlist[];
X
Xint
Xeval(arg,gimme,sp)
Xregister ARG *arg;
Xint gimme;
Xregister int sp;
X{
X register STR *str;
X register int anum;
X register int optype;
X register STR **st;
X int maxarg;
X double value;
X register char *tmps;
X char *tmps2;
X int argflags;
X int argtype;
X union argptr argptr;
X int arglast[8]; /* highest sp for arg--valid only for non-O_LIST args */
X unsigned long tmplong;
X long when;
X FILE *fp;
X STR *tmpstr;
X FCMD *form;
X STAB *stab;
X ARRAY *ary;
X bool assigning = FALSE;
X double exp(), log(), sqrt(), modf();
X char *crypt(), *getenv();
X
X if (!arg)
X goto say_undef;
X optype = arg->arg_type;
X maxarg = arg->arg_len;
X arglast[0] = sp;
X str = arg->arg_ptr.arg_str;
X if (sp + maxarg > stack->ary_max)
X astore(stack, sp + maxarg, Nullstr);
X st = stack->ary_array;
X
X#ifdef DEBUGGING
X if (debug) {
X if (debug & 8) {
X deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg);
X }
X debname[dlevel] = opname[optype][0];
X debdelim[dlevel++] = ':';
X }
X#endif
X
X#include "evalargs.xc";
X
X st += arglast[0];
X switch (optype) {
X case O_RCAT:
X STABSET(str);
X break;
X case O_ITEM:
X if (gimme == G_ARRAY)
X goto array_return;
X STR_SSET(str,st[1]);
X STABSET(str);
X break;
X case O_ITEM2:
X if (gimme == G_ARRAY)
X goto array_return;
X --anum;
X STR_SSET(str,st[arglast[anum]-arglast[0]]);
X STABSET(str);
X break;
X case O_ITEM3:
X if (gimme == G_ARRAY)
X goto array_return;
X --anum;
X STR_SSET(str,st[arglast[anum]-arglast[0]]);
X STABSET(str);
X break;
X case O_CONCAT:
X STR_SSET(str,st[1]);
X str_scat(str,st[2]);
X STABSET(str);
X break;
X case O_REPEAT:
X STR_SSET(str,st[1]);
X anum = (int)str_gnum(st[2]);
X if (anum >= 1) {
X tmpstr = str_new(0);
X str_sset(tmpstr,str);
X while (--anum > 0)
X str_scat(str,tmpstr);
X }
X else
X str_sset(str,&str_no);
X STABSET(str);
X break;
X case O_MATCH:
X sp = do_match(str,arg,
X gimme,arglast);
X if (gimme == G_ARRAY)
X goto array_return;
X STABSET(str);
X break;
X case O_NMATCH:
X sp = do_match(str,arg,
X gimme,arglast);
X if (gimme == G_ARRAY)
X goto array_return;
X str_sset(str, str_true(str) ? &str_no : &str_yes);
X STABSET(str);
X break;
X case O_SUBST:
X sp = do_subst(str,arg,sp);
X goto array_return;
X case O_NSUBST:
X sp = do_subst(str,arg,sp);
X str = arg->arg_ptr.arg_str;
X str_set(str, str_true(str) ? No : Yes);
X goto array_return;
X case O_ASSIGN:
X if (arg[1].arg_flags & AF_ARYOK) {
X if (arg->arg_len == 1) {
X arg->arg_type = O_LOCAL;
X arg->arg_flags |= AF_LOCAL;
X goto local;
X }
X else {
X arg->arg_type = O_AASSIGN;
X goto aassign;
X }
X }
X else {
X arg->arg_type = O_SASSIGN;
X goto sassign;
X }
X case O_LOCAL:
X local:
X arglast[2] = arglast[1]; /* push a null array */
X /* FALL THROUGH */
X case O_AASSIGN:
X aassign:
X sp = do_assign(arg,
X gimme,arglast);
X goto array_return;
X case O_SASSIGN:
X sassign:
X STR_SSET(str, st[2]);
X STABSET(str);
X break;
X case O_CHOP:
X st -= arglast[0];
X str = arg->arg_ptr.arg_str;
X for (sp = arglast[0] + 1; sp <= arglast[1]; sp++)
X do_chop(str,st[sp]);
X break;
X case O_DEFINED:
X if (arg[1].arg_type & A_DONT) {
X sp = do_defined(str,arg,
X gimme,arglast);
X goto array_return;
X }
X else if (str->str_pok || str->str_nok)
X goto say_yes;
X goto say_no;
X case O_UNDEF:
X if (arg[1].arg_type & A_DONT) {
X sp = do_undef(str,arg,
X gimme,arglast);
X goto array_return;
X }
X else if (str != stab_val(defstab)) {
X str->str_pok = str->str_nok = 0;
X STABSET(str);
X }
X goto say_undef;
X case O_STUDY:
X sp = do_study(str,arg,
X gimme,arglast);
X goto array_return;
X case O_POW:
X value = str_gnum(st[1]);
X value = pow(value,str_gnum(st[2]));
X goto donumset;
X case O_MULTIPLY:
X value = str_gnum(st[1]);
X value *= str_gnum(st[2]);
X goto donumset;
X case O_DIVIDE:
X if ((value = str_gnum(st[2])) == 0.0)
X fatal("Illegal division by zero");
X value = str_gnum(st[1]) / value;
X goto donumset;
X case O_MODULO:
X tmplong = (long) str_gnum(st[2]);
X if (tmplong == 0L)
X fatal("Illegal modulus zero");
X when = (long)str_gnum(st[1]);
X#ifndef lint
X if (when >= 0)
X value = (double)(when % tmplong);
X else
X value = (double)(tmplong - (-when % tmplong));
X#endif
X goto donumset;
X case O_ADD:
X value = str_gnum(st[1]);
X value += str_gnum(st[2]);
X goto donumset;
X case O_SUBTRACT:
X value = str_gnum(st[1]);
X value -= str_gnum(st[2]);
X goto donumset;
X case O_LEFT_SHIFT:
X value = str_gnum(st[1]);
X anum = (int)str_gnum(st[2]);
X#ifndef lint
X value = (double)(((long)value) << anum);
X#endif
X goto donumset;
X case O_RIGHT_SHIFT:
X value = str_gnum(st[1]);
X anum = (int)str_gnum(st[2]);
X#ifndef lint
X value = (double)(((long)value) >> anum);
X#endif
X goto donumset;
X case O_LT:
X value = str_gnum(st[1]);
X value = (value < str_gnum(st[2])) ? 1.0 : 0.0;
X goto donumset;
X case O_GT:
X value = str_gnum(st[1]);
X value = (value > str_gnum(st[2])) ? 1.0 : 0.0;
X goto donumset;
X case O_LE:
X value = str_gnum(st[1]);
X value = (value <= str_gnum(st[2])) ? 1.0 : 0.0;
X goto donumset;
X case O_GE:
X value = str_gnum(st[1]);
X value = (value >= str_gnum(st[2])) ? 1.0 : 0.0;
X goto donumset;
X case O_EQ:
X if (dowarn) {
X if ((!st[1]->str_nok && !looks_like_number(st[1])) ||
X (!st[2]->str_nok && !looks_like_number(st[2])) )
X warn("Possible use of == on string value");
X }
X value = str_gnum(st[1]);
X value = (value == str_gnum(st[2])) ? 1.0 : 0.0;
X goto donumset;
X case O_NE:
X value = str_gnum(st[1]);
X value = (value != str_gnum(st[2])) ? 1.0 : 0.0;
X goto donumset;
X case O_BIT_AND:
X if (!sawvec || st[1]->str_nok || st[2]->str_nok) {
X value = str_gnum(st[1]);
X#ifndef lint
X value = (double)(((long)value) & (long)str_gnum(st[2]));
X#endif
X goto donumset;
X }
X else
X do_vop(optype,str,st[1],st[2]);
X break;
X case O_XOR:
X if (!sawvec || st[1]->str_nok || st[2]->str_nok) {
X value = str_gnum(st[1]);
X#ifndef lint
X value = (double)(((long)value) ^ (long)str_gnum(st[2]));
X#endif
X goto donumset;
X }
X else
X do_vop(optype,str,st[1],st[2]);
X break;
X case O_BIT_OR:
X if (!sawvec || st[1]->str_nok || st[2]->str_nok) {
X value = str_gnum(st[1]);
X#ifndef lint
X value = (double)(((long)value) | (long)str_gnum(st[2]));
X#endif
X goto donumset;
X }
X else
X do_vop(optype,str,st[1],st[2]);
X break;
X/* use register in evaluating str_true() */
X case O_AND:
X if (str_true(st[1])) {
X anum = 2;
X optype = O_ITEM2;
X argflags = arg[anum].arg_flags;
X if (gimme == G_ARRAY)
X argflags |= AF_ARYOK;
X argtype = arg[anum].arg_type & A_MASK;
X argptr = arg[anum].arg_ptr;
X maxarg = anum = 1;
X sp = arglast[0];
X st -= sp;
X goto re_eval;
X }
X else {
X if (assigning) {
X str_sset(str, st[1]);
X STABSET(str);
X }
X else
X str = st[1];
X break;
X }
X case O_OR:
X if (str_true(st[1])) {
X if (assigning) {
X str_sset(str, st[1]);
X STABSET(str);
X }
X else
X str = st[1];
X break;
X }
X else {
X anum = 2;
X optype = O_ITEM2;
X argflags = arg[anum].arg_flags;
X if (gimme == G_ARRAY)
X argflags |= AF_ARYOK;
X argtype = arg[anum].arg_type & A_MASK;
X argptr = arg[anum].arg_ptr;
X maxarg = anum = 1;
X sp = arglast[0];
X st -= sp;
X goto re_eval;
X }
X case O_COND_EXPR:
X anum = (str_true(st[1]) ? 2 : 3);
X optype = (anum == 2 ? O_ITEM2 : O_ITEM3);
X argflags = arg[anum].arg_flags;
X if (gimme == G_ARRAY)
X argflags |= AF_ARYOK;
X argtype = arg[anum].arg_type & A_MASK;
X argptr = arg[anum].arg_ptr;
X maxarg = anum = 1;
X sp = arglast[0];
X st -= sp;
X goto re_eval;
X case O_COMMA:
X if (gimme == G_ARRAY)
X goto array_return;
X str = st[2];
X break;
X case O_NEGATE:
X value = -str_gnum(st[1]);
X goto donumset;
X case O_NOT:
X value = (double) !str_true(st[1]);
X goto donumset;
X case O_COMPLEMENT:
X#ifndef lint
X value = (double) ~(long)str_gnum(st[1]);
X#endif
X goto donumset;
X case O_SELECT:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X defoutstab = arg[1].arg_ptr.arg_stab;
X else
X defoutstab = stabent(str_get(st[1]),TRUE);
X if (!stab_io(defoutstab))
X stab_io(defoutstab) = stio_new();
X curoutstab = defoutstab;
X str_set(str,stab_io(curoutstab)->ofp ? Yes : No);
X STABSET(str);
X break;
X case O_WRITE:
X if (maxarg == 0)
X stab = defoutstab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (!stab_io(stab)) {
X str_set(str, No);
X STABSET(str);
X break;
X }
X curoutstab = stab;
X fp = stab_io(stab)->ofp;
X debarg = arg;
X if (stab_io(stab)->fmt_stab)
X form = stab_form(stab_io(stab)->fmt_stab);
X else
X form = stab_form(stab);
X if (!form || !fp) {
X str_set(str, No);
X STABSET(str);
X break;
X }
X format(&outrec,form,sp);
X do_write(&outrec,stab_io(stab),sp);
X if (stab_io(stab)->flags & IOF_FLUSH)
X (void)fflush(fp);
X str_set(str, Yes);
X STABSET(str);
X break;
X case O_DBMOPEN:
X#ifdef SOME_DBM
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X anum = (int)str_gnum(st[3]);
X value = (double)hdbmopen(stab_hash(stab),str_get(st[2]),anum);
X goto donumset;
X#else
X fatal("No dbm or ndbm on this machine");
X#endif
X case O_DBMCLOSE:
X#ifdef SOME_DBM
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X hdbmclose(stab_hash(stab));
X goto say_yes;
X#else
X fatal("No dbm or ndbm on this machine");
X#endif
X case O_OPEN:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (do_open(stab,str_get(st[2]))) {
X value = (double)forkprocess;
X stab_io(stab)->lines = 0;
X goto donumset;
X }
X else
X str_set(str, No);
X STABSET(str);
X break;
X case O_TRANS:
X value = (double) do_trans(str,arg);
X str = arg->arg_ptr.arg_str;
X goto donumset;
X case O_NTRANS:
X str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No);
X str = arg->arg_ptr.arg_str;
X break;
X case O_CLOSE:
X if (maxarg == 0)
X stab = defoutstab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X str_set(str, do_close(stab,TRUE) ? Yes : No );
X STABSET(str);
X break;
X case O_EACH:
X sp = do_each(str,stab_hash(arg[1].arg_ptr.arg_stab),
X gimme,arglast);
X goto array_return;
X case O_VALUES:
X case O_KEYS:
X sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype,
X gimme,arglast);
X goto array_return;
X case O_LARRAY:
X str->str_nok = str->str_pok = 0;
X str->str_u.str_stab = arg[1].arg_ptr.arg_stab;
X str->str_state = SS_ARY;
X break;
X case O_ARRAY:
X ary = stab_array(arg[1].arg_ptr.arg_stab);
X maxarg = ary->ary_fill + 1;
X if (gimme == G_ARRAY) { /* array wanted */
X sp = arglast[0];
X st -= sp;
X if (maxarg > 0 && sp + maxarg > stack->ary_max) {
X astore(stack,sp + maxarg, Nullstr);
X st = stack->ary_array;
X }
X Copy(ary->ary_array, &st[sp+1], maxarg, STR*);
X sp += maxarg;
X goto array_return;
X }
X else
X str = afetch(ary,maxarg - 1,FALSE);
X break;
X case O_AELEM:
X str = afetch(stab_array(arg[1].arg_ptr.arg_stab),
X ((int)str_gnum(st[2])) - arybase,FALSE);
X if (!str)
X goto say_undef;
X break;
X case O_DELETE:
X tmpstab = arg[1].arg_ptr.arg_stab;
X tmps = str_get(st[2]);
X str = hdelete(stab_hash(tmpstab),tmps,st[2]->str_cur);
X if (tmpstab == envstab)
X setenv(tmps,Nullch);
X if (!str)
X goto say_undef;
X break;
X case O_LHASH:
X str->str_nok = str->str_pok = 0;
X str->str_u.str_stab = arg[1].arg_ptr.arg_stab;
X str->str_state = SS_HASH;
X break;
X case O_HASH:
X if (gimme == G_ARRAY) { /* array wanted */
X sp = do_kv(str,stab_hash(arg[1].arg_ptr.arg_stab), optype,
X gimme,arglast);
X goto array_return;
X }
X else {
X tmpstab = arg[1].arg_ptr.arg_stab;
X sprintf(buf,"%d/%d",stab_hash(tmpstab)->tbl_fill,
X stab_hash(tmpstab)->tbl_max+1);
X str_set(str,buf);
X }
X break;
X case O_HELEM:
X tmpstab = arg[1].arg_ptr.arg_stab;
X tmps = str_get(st[2]);
X str = hfetch(stab_hash(tmpstab),tmps,st[2]->str_cur,FALSE);
X if (!str)
X goto say_undef;
X break;
X case O_LAELEM:
X anum = ((int)str_gnum(st[2])) - arybase;
X str = afetch(stab_array(arg[1].arg_ptr.arg_stab),anum,TRUE);
X break;
X case O_LHELEM:
X tmpstab = arg[1].arg_ptr.arg_stab;
X tmps = str_get(st[2]);
X anum = st[2]->str_cur;
X str = hfetch(stab_hash(tmpstab),tmps,anum,TRUE);
X if (tmpstab == envstab) /* heavy wizardry going on here */
X str_magic(str, tmpstab, 'E', tmps, anum); /* str is now magic */
X /* he threw the brick up into the air */
X else if (tmpstab == sigstab)
X str_magic(str, tmpstab, 'S', tmps, anum);
X#ifdef SOME_DBM
X else if (stab_hash(tmpstab)->tbl_dbm)
X str_magic(str, tmpstab, 'D', tmps, anum);
X#endif
X break;
X case O_ASLICE:
X anum = TRUE;
X argtype = FALSE;
X goto do_slice_already;
X case O_HSLICE:
X anum = FALSE;
X argtype = FALSE;
X goto do_slice_already;
X case O_LASLICE:
X anum = TRUE;
X argtype = TRUE;
X goto do_slice_already;
X case O_LHSLICE:
X anum = FALSE;
X argtype = TRUE;
X do_slice_already:
X sp = do_slice(arg[1].arg_ptr.arg_stab,anum,argtype,
X gimme,arglast);
X goto array_return;
X case O_PUSH:
X if (arglast[2] - arglast[1] != 1)
X str = do_push(stab_array(arg[1].arg_ptr.arg_stab),arglast);
X else {
X str = str_new(0); /* must copy the STR */
X str_sset(str,st[2]);
X (void)apush(stab_array(arg[1].arg_ptr.arg_stab),str);
X }
X break;
X case O_POP:
X str = apop(stab_array(arg[1].arg_ptr.arg_stab));
X if (!str)
X goto say_undef;
X str_free(arg->arg_ptr.arg_str);
X arg->arg_ptr.arg_str = str;
X break;
X case O_SHIFT:
X str = ashift(stab_array(arg[1].arg_ptr.arg_stab));
X if (!str)
X goto say_undef;
X str_free(arg->arg_ptr.arg_str);
X arg->arg_ptr.arg_str = str;
X break;
X case O_UNPACK:
X sp = do_unpack(str,gimme,arglast);
X goto array_return;
X case O_SPLIT:
X value = str_gnum(st[3]);
X sp = do_split(str, arg[2].arg_ptr.arg_spat, (int)value,
X gimme,arglast);
X goto array_return;
X case O_LENGTH:
X value = (double) str_len(st[1]);
X goto donumset;
X case O_SPRINTF:
X do_sprintf(str, sp-arglast[0], st+1);
X break;
X case O_SUBSTR:
X anum = ((int)str_gnum(st[2])) - arybase; /* anum=where to start*/
X tmps = str_get(st[1]); /* force conversion to string */
X if (argtype = (str == st[1]))
X str = arg->arg_ptr.arg_str;
X if (anum < 0)
X anum += st[1]->str_cur + arybase;
X if (anum < 0 || anum > st[1]->str_cur)
X str_nset(str,"",0);
X else {
X optype = (int)str_gnum(st[3]);
X if (optype < 0)
X optype = 0;
X tmps += anum;
X anum = st[1]->str_cur - anum; /* anum=how many bytes left*/
X if (anum > optype)
X anum = optype;
X str_nset(str, tmps, anum);
X if (argtype) { /* it's an lvalue! */
X lstr = (struct lstring*)str;
X str->str_magic = st[1];
X st[1]->str_rare = 's';
X lstr->lstr_offset = tmps - str_get(st[1]);
X lstr->lstr_len = anum;
X }
X }
X break;
X case O_PACK:
X (void)do_pack(str,arglast);
X break;
X case O_GREP:
X sp = do_grep(arg,str,gimme,arglast);
X goto array_return;
X case O_JOIN:
X do_join(str,arglast);
X break;
X case O_SLT:
X tmps = str_get(st[1]);
X value = (double) (str_cmp(st[1],st[2]) < 0);
X goto donumset;
X case O_SGT:
X tmps = str_get(st[1]);
X value = (double) (str_cmp(st[1],st[2]) > 0);
X goto donumset;
X case O_SLE:
X tmps = str_get(st[1]);
X value = (double) (str_cmp(st[1],st[2]) <= 0);
X goto donumset;
X case O_SGE:
X tmps = str_get(st[1]);
X value = (double) (str_cmp(st[1],st[2]) >= 0);
X goto donumset;
X case O_SEQ:
X tmps = str_get(st[1]);
X value = (double) str_eq(st[1],st[2]);
X goto donumset;
X case O_SNE:
X tmps = str_get(st[1]);
X value = (double) !str_eq(st[1],st[2]);
X goto donumset;
X case O_SUBR:
X sp = do_subr(arg,gimme,arglast);
X st = stack->ary_array + arglast[0]; /* maybe realloced */
X goto array_return;
X case O_DBSUBR:
X sp = do_dbsubr(arg,gimme,arglast);
X st = stack->ary_array + arglast[0]; /* maybe realloced */
X goto array_return;
X case O_SORT:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (!stab)
X stab = defoutstab;
X sp = do_sort(str,stab,
X gimme,arglast);
X goto array_return;
X case O_REVERSE:
X sp = do_reverse(str,
X gimme,arglast);
X goto array_return;
X case O_WARN:
X if (arglast[2] - arglast[1] != 1) {
X do_join(str,arglast);
X tmps = str_get(st[1]);
X }
X else {
X str = st[2];
X tmps = str_get(st[2]);
X }
X if (!tmps || !*tmps)
X tmps = "Warning: something's wrong";
X warn("%s",tmps);
X goto say_yes;
X case O_DIE:
X if (arglast[2] - arglast[1] != 1) {
X do_join(str,arglast);
X tmps = str_get(st[1]);
X }
X else {
X str = st[2];
X tmps = str_get(st[2]);
X }
X if (!tmps || !*tmps)
X exit(1);
X fatal("%s",tmps);
X goto say_zero;
X case O_PRTF:
X case O_PRINT:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (!stab)
X stab = defoutstab;
X if (!stab_io(stab) || !(fp = stab_io(stab)->ofp))
X goto say_zero;
X else {
X if (arglast[2] - arglast[1] != 1)
X value = (double)do_aprint(arg,fp,arglast);
X else {
X value = (double)do_print(st[2],fp);
X if (orslen && optype == O_PRINT)
X if (fwrite(ors, 1, orslen, fp) == 0)
X goto say_zero;
X }
X if (stab_io(stab)->flags & IOF_FLUSH)
X if (fflush(fp) == EOF)
X goto say_zero;
X }
X goto donumset;
X case O_CHDIR:
X tmps = str_get(st[1]);
X if (!tmps || !*tmps) {
X tmpstr = hfetch(stab_hash(envstab),"HOME",4,FALSE);
X if (tmpstr)
X tmps = str_get(tmpstr);
X }
X if (!tmps || !*tmps) {
X tmpstr = hfetch(stab_hash(envstab),"LOGDIR",6,FALSE);
X if (tmpstr)
X tmps = str_get(tmpstr);
X }
X#ifdef TAINT
X taintproper("Insecure dependency in chdir");
X#endif
X value = (double)(chdir(tmps) >= 0);
X goto donumset;
X case O_EXIT:
X exit((int)str_gnum(st[1]));
X goto say_zero;
X case O_RESET:
X str_reset(str_get(st[1]),arg[2].arg_ptr.arg_hash);
X value = 1.0;
X goto donumset;
X case O_LIST:
X if (gimme == G_ARRAY)
X goto array_return;
X if (maxarg > 0)
X str = st[sp - arglast[0]]; /* unwanted list, return last item */
X else
X str = &str_undef;
X break;
X case O_EOF:
X if (maxarg <= 0)
X stab = last_in_stab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X str_set(str, do_eof(stab) ? Yes : No);
X STABSET(str);
X break;
X case O_GETC:
X if (maxarg <= 0)
X stab = stdinstab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (do_eof(stab)) /* make sure we have fp with something */
X str_set(str, No);
X else {
X#ifdef TAINT
X tainted = 1;
X#endif
X str_set(str," ");
X *str->str_ptr = getc(stab_io(stab)->ifp); /* should never be EOF */
X }
X STABSET(str);
X break;
X case O_TELL:
X if (maxarg <= 0)
X stab = last_in_stab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X#ifndef lint
X value = (double)do_tell(stab);
X#else
X (void)do_tell(stab);
X#endif
X goto donumset;
X case O_RECV:
X case O_READ:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X tmps = str_get(st[2]);
X anum = (int)str_gnum(st[3]);
X STR_GROW(st[2], anum+1), (tmps = str_get(st[2])); /* sneaky */
X errno = 0;
X if (!stab_io(stab) || !stab_io(stab)->ifp)
X goto say_zero;
X#ifdef SOCKET
X else if (optype == O_RECV) {
X argtype = sizeof buf;
X optype = (int)str_gnum(st[4]);
X anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, optype,
X buf, &argtype);
X if (anum >= 0) {
X st[2]->str_cur = anum;
X st[2]->str_ptr[anum] = '\0';
X str_nset(str,buf,argtype);
X }
X else
X str_sset(str,&str_undef);
X break;
X }
X else if (stab_io(stab)->type == 's') {
X argtype = sizeof buf;
X anum = recvfrom(fileno(stab_io(stab)->ifp), tmps, anum, 0,
X buf, &argtype);
X }
X#else
X else if (optype == O_RECV)
X goto badsock;
X#endif
X else
X anum = fread(tmps, 1, anum, stab_io(stab)->ifp);
X if (anum < 0)
X goto say_undef;
X st[2]->str_cur = anum;
X st[2]->str_ptr[anum] = '\0';
X value = (double)anum;
X goto donumset;
X case O_SEND:
X#ifdef SOCKET
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X tmps = str_get(st[2]);
X anum = (int)str_gnum(st[3]);
X optype = sp - arglast[0];
X errno = 0;
X if (optype > 4)
X warn("Too many args on send");
X if (optype >= 4) {
X tmps2 = str_get(st[4]);
X anum = sendto(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur,
X anum, tmps2, st[4]->str_cur);
X }
X else
X anum = send(fileno(stab_io(stab)->ifp), tmps, st[2]->str_cur, anum);
X if (anum < 0)
X goto say_undef;
X value = (double)anum;
X goto donumset;
X#else
X goto badsock;
X#endif
X case O_SEEK:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X value = str_gnum(st[2]);
X str_set(str, do_seek(stab,
X (long)value, (int)str_gnum(st[3]) ) ? Yes : No);
X STABSET(str);
X break;
X case O_RETURN:
X tmps = "SUB"; /* just fake up a "last SUB" */
X optype = O_LAST;
X if (gimme == G_ARRAY) {
X lastretstr = Nullstr;
X lastspbase = arglast[0];
X lastsize = arglast[1] - arglast[0];
X }
X else
X lastretstr = str_static(st[arglast[1] - arglast[0]]);
X goto dopop;
X case O_REDO:
X case O_NEXT:
X case O_LAST:
X if (maxarg > 0) {
X tmps = str_get(arg[1].arg_ptr.arg_str);
X dopop:
X while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
X strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
X#ifdef DEBUGGING
X if (debug & 4) {
X deb("(Skipping label #%d %s)\n",loop_ptr,
X loop_stack[loop_ptr].loop_label);
X }
X#endif
X loop_ptr--;
X }
X#ifdef DEBUGGING
X if (debug & 4) {
X deb("(Found label #%d %s)\n",loop_ptr,
X loop_stack[loop_ptr].loop_label);
X }
X#endif
X }
X if (loop_ptr < 0)
X fatal("Bad label: %s", maxarg > 0 ? tmps : "<null>");
X if (!lastretstr && optype == O_LAST && lastsize) {
X st -= arglast[0];
X st += lastspbase + 1;
X optype = loop_stack[loop_ptr].loop_sp - lastspbase; /* negative */
X if (optype) {
X for (anum = lastsize; anum > 0; anum--,st++)
X st[optype] = str_static(st[0]);
X }
X longjmp(loop_stack[loop_ptr].loop_env, O_LAST);
X }
X longjmp(loop_stack[loop_ptr].loop_env, optype);
X case O_DUMP:
X case O_GOTO:/* shudder */
X goto_targ = str_get(arg[1].arg_ptr.arg_str);
X if (!*goto_targ)
X goto_targ = Nullch; /* just restart from top */
X if (optype == O_DUMP)
X abort();
X longjmp(top_env, 1);
X case O_INDEX:
X tmps = str_get(st[1]);
X#ifndef lint
X if (!(tmps2 = fbminstr((unsigned char*)tmps,
X (unsigned char*)tmps + st[1]->str_cur, st[2])))
X#else
X if (tmps2 = fbminstr(Null(unsigned char*),Null(unsigned char*),Nullstr))
X#endif
X value = (double)(-1 + arybase);
X else
X value = (double)(tmps2 - tmps + arybase);
X goto donumset;
X case O_RINDEX:
X tmps = str_get(st[1]);
X tmps2 = str_get(st[2]);
X#ifndef lint
X if (!(tmps2 = rninstr(tmps, tmps + st[1]->str_cur,
X tmps2, tmps2 + st[2]->str_cur)))
X#else
X if (tmps2 = rninstr(Nullch,Nullch,Nullch,Nullch))
X#endif
X value = (double)(-1 + arybase);
X else
X value = (double)(tmps2 - tmps + arybase);
X goto donumset;
X case O_TIME:
X#ifndef lint
X value = (double) time(Null(long*));
X#endif
X goto donumset;
X case O_TMS:
X sp = do_tms(str,gimme,arglast);
X goto array_return;
X case O_LOCALTIME:
X when = (long)str_gnum(st[1]);
X sp = do_time(str,localtime(&when),
X gimme,arglast);
X goto array_return;
X case O_GMTIME:
X when = (long)str_gnum(st[1]);
X sp = do_time(str,gmtime(&when),
X gimme,arglast);
X goto array_return;
X case O_LSTAT:
X case O_STAT:
X sp = do_stat(str,arg,
X gimme,arglast);
X goto array_return;
X case O_CRYPT:
X#ifdef CRYPT
X tmps = str_get(st[1]);
X#ifdef FCRYPT
X str_set(str,fcrypt(tmps,str_get(st[2])));
X#else
X str_set(str,crypt(tmps,str_get(st[2])));
X#endif
X#else
X fatal(
X "The crypt() function is unimplemented due to excessive paranoia.");
X#endif
X break;
X case O_ATAN2:
X value = str_gnum(st[1]);
X value = atan2(value,str_gnum(st[2]));
X goto donumset;
X case O_SIN:
X value = sin(str_gnum(st[1]));
X goto donumset;
X case O_COS:
X value = cos(str_gnum(st[1]));
X goto donumset;
X case O_RAND:
X value = str_gnum(st[1]);
X if (value == 0.0)
X value = 1.0;
X#if RANDBITS == 31
X value = rand() * value / 2147483648.0;
X#else
X#if RANDBITS == 16
X value = rand() * value / 65536.0;
X#else
X#if RANDBITS == 15
X value = rand() * value / 32768.0;
X#else
X value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
X#endif
X#endif
X#endif
X goto donumset;
X case O_SRAND:
X (void)srand((int)str_gnum(st[1]));
X goto say_yes;
X case O_EXP:
X value = exp(str_gnum(st[1]));
X goto donumset;
X case O_LOG:
X value = log(str_gnum(st[1]));
X goto donumset;
X case O_SQRT:
X value = sqrt(str_gnum(st[1]));
X goto donumset;
X case O_INT:
X value = str_gnum(st[1]);
X if (value >= 0.0)
X (void)modf(value,&value);
X else {
X (void)modf(-value,&value);
X value = -value;
X }
X goto donumset;
X case O_ORD:
X#ifndef I286
X value = (double) *str_get(st[1]);
X#else
X { int zapc;
X char *zaps;
X
X zaps = str_get(st[1]);
X zapc = (int) *zaps;
X value = (double) zapc;
X }
X#endif
X goto donumset;
X case O_SLEEP:
X tmps = str_get(st[1]);
X (void)time(&when);
X if (!tmps || !*tmps)
X sleep((32767<<16)+32767);
X else
X sleep((unsigned int)atoi(tmps));
X#ifndef lint
X value = (double)when;
X (void)time(&when);
X value = ((double)when) - value;
X#endif
X goto donumset;
X case O_RANGE:
X sp = do_range(gimme,arglast);
X goto array_return;
X case O_F_OR_R:
X if (gimme == G_ARRAY) { /* it's a range */
X /* can we optimize to constant array? */
X if ((arg[1].arg_type & A_MASK) == A_SINGLE &&
X (arg[2].arg_type & A_MASK) == A_SINGLE) {
X st[2] = arg[2].arg_ptr.arg_str;
X sp = do_range(gimme,arglast);
X st = stack->ary_array;
X maxarg = sp - arglast[0];
X str_free(arg[1].arg_ptr.arg_str);
X str_free(arg[2].arg_ptr.arg_str);
X arg->arg_type = O_ARRAY;
X arg[1].arg_type = A_STAB|A_DONT;
X arg->arg_len = 1;
X stab = arg[1].arg_ptr.arg_stab = aadd(genstab());
X ary = stab_array(stab);
X afill(ary,maxarg - 1);
X st += arglast[0]+1;
X while (maxarg-- > 0)
X ary->ary_array[maxarg] = str_smake(st[maxarg]);
X goto array_return;
X }
X arg->arg_type = optype = O_RANGE;
X maxarg = arg->arg_len = 2;
X anum = 2;
X arg[anum].arg_flags &= ~AF_ARYOK;
X argflags = arg[anum].arg_flags;
X argtype = arg[anum].arg_type & A_MASK;
X arg[anum].arg_type = argtype;
X argptr = arg[anum].arg_ptr;
X sp = arglast[0];
X st -= sp;
X sp++;
X goto re_eval;
X }
X arg->arg_type = O_FLIP;
X /* FALL THROUGH */
X case O_FLIP:
X if ((arg[1].arg_type & A_MASK) == A_SINGLE ?
X last_in_stab && (int)str_gnum(st[1]) == stab_io(last_in_stab)->lines
X :
X str_true(st[1]) ) {
X str_numset(str,0.0);
X anum = 2;
X arg->arg_type = optype = O_FLOP;
X arg[2].arg_type &= ~A_DONT;
X arg[1].arg_type |= A_DONT;
X argflags = arg[2].arg_flags;
X argtype = arg[2].arg_type & A_MASK;
X argptr = arg[2].arg_ptr;
X sp = arglast[0];
X st -= sp;
X goto re_eval;
X }
X str_set(str,"");
X break;
X case O_FLOP:
X str_inc(str);
X if ((arg[2].arg_type & A_MASK) == A_SINGLE ?
X last_in_stab && (int)str_gnum(st[2]) == stab_io(last_in_stab)->lines
X :
X str_true(st[2]) ) {
X arg->arg_type = O_FLIP;
X arg[1].arg_type &= ~A_DONT;
X arg[2].arg_type |= A_DONT;
X str_cat(str,"E0");
X }
X break;
X case O_FORK:
X anum = fork();
X if (!anum && (tmpstab = stabent("$",allstabs)))
X str_numset(STAB_STR(tmpstab),(double)getpid());
X value = (double)anum;
X goto donumset;
X case O_WAIT:
X#ifndef lint
X ihand = signal(SIGINT, SIG_IGN);
X qhand = signal(SIGQUIT, SIG_IGN);
X anum = wait(&argflags);
X if (anum > 0)
X pidgone(anum,argflags);
X value = (double)anum;
X#else
X ihand = qhand = 0;
X#endif
X (void)signal(SIGINT, ihand);
X (void)signal(SIGQUIT, qhand);
X statusvalue = (unsigned short)argflags;
X goto donumset;
X case O_SYSTEM:
X#ifdef TAINT
X if (arglast[2] - arglast[1] == 1) {
X taintenv();
X tainted |= st[2]->str_tainted;
X taintproper("Insecure dependency in system");
X }
X#endif
X while ((anum = vfork()) == -1) {
X if (errno != EAGAIN) {
X value = -1.0;
X goto donumset;
X }
X sleep(5);
X }
X if (anum > 0) {
X#ifndef lint
X ihand = signal(SIGINT, SIG_IGN);
X qhand = signal(SIGQUIT, SIG_IGN);
X while ((argtype = wait(&argflags)) != anum && argtype >= 0)
X pidgone(argtype,argflags);
X#else
X ihand = qhand = 0;
X#endif
X (void)signal(SIGINT, ihand);
X (void)signal(SIGQUIT, qhand);
X statusvalue = (unsigned short)argflags;
X if (argtype == -1)
X value = -1.0;
X else {
X value = (double)((unsigned int)argflags & 0xffff);
X }
X goto donumset;
X }
X if ((arg[1].arg_type & A_MASK) == A_STAB)
X value = (double)do_aexec(st[1],arglast);
X else if (arglast[2] - arglast[1] != 1)
X value = (double)do_aexec(Nullstr,arglast);
X else {
X value = (double)do_exec(str_get(str_static(st[2])));
X }
X _exit(-1);
X case O_EXEC:
X if ((arg[1].arg_type & A_MASK) == A_STAB)
X value = (double)do_aexec(st[1],arglast);
X else if (arglast[2] - arglast[1] != 1)
X value = (double)do_aexec(Nullstr,arglast);
X else {
X value = (double)do_exec(str_get(str_static(st[2])));
X }
X goto donumset;
X case O_HEX:
X argtype = 4;
X goto snarfnum;
X
X case O_OCT:
X argtype = 3;
X
X snarfnum:
X anum = 0;
X tmps = str_get(st[1]);
X for (;;) {
X switch (*tmps) {
X default:
X goto out;
X case '8': case '9':
X if (argtype != 4)
X goto out;
X /* FALL THROUGH */
X case '0': case '1': case '2': case '3': case '4':
X case '5': case '6': case '7':
X anum <<= argtype;
X anum += *tmps++ & 15;
X break;
X case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
X case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
X if (argtype != 4)
X goto out;
X anum <<= 4;
X anum += (*tmps++ & 7) + 9;
X break;
X case 'x':
X argtype = 4;
X tmps++;
X break;
X }
X }
X out:
X value = (double)anum;
X goto donumset;
X case O_CHMOD:
X case O_CHOWN:
X case O_KILL:
X case O_UNLINK:
X case O_UTIME:
X value = (double)apply(optype,arglast);
X goto donumset;
X case O_UMASK:
X value = (double)umask((int)str_gnum(st[1]));
X#ifdef TAINT
X taintproper("Insecure dependency in umask");
X#endif
X goto donumset;
X case O_RENAME:
X tmps = str_get(st[1]);
X tmps2 = str_get(st[2]);
X#ifdef TAINT
X taintproper("Insecure dependency in rename");
X#endif
X#ifdef RENAME
X value = (double)(rename(tmps,tmps2) >= 0);
X#else
X if (euid || stat(tmps2,&statbuf) < 0 ||
X (statbuf.st_mode & S_IFMT) != S_IFDIR )
X (void)UNLINK(tmps2); /* avoid unlinking a directory */
X if (!(anum = link(tmps,tmps2)))
X anum = UNLINK(tmps);
X value = (double)(anum >= 0);
X#endif
X goto donumset;
X case O_LINK:
X tmps = str_get(st[1]);
X tmps2 = str_get(st[2]);
X#ifdef TAINT
X taintproper("Insecure dependency in link");
X#endif
X value = (double)(link(tmps,tmps2) >= 0);
X goto donumset;
X case O_MKDIR:
X tmps = str_get(st[1]);
X anum = (int)str_gnum(st[2]);
X#ifdef TAINT
X taintproper("Insecure dependency in mkdir");
X#endif
X#ifdef MKDIR
X value = (double)(mkdir(tmps,anum) >= 0);
X#else
X (void)sprintf(buf,"mkdir %s 2>&1",tmps);
X one_liner:
X rsfp = mypopen(buf,"r");
X if (rsfp) {
X *buf = '\0';
X tmps2 = fgets(buf,sizeof buf,rsfp);
X (void)mypclose(rsfp);
X if (tmps2 != Nullch) {
X for (errno = 1; errno <= sys_nerr; errno++) {
X if (instr(buf,sys_errlist[errno])) /* you don't see this */
X goto say_zero;
X }
X errno = 0;
X }
X else
X value = 1.0;
X }
X else
X goto say_zero;
X#endif
X goto donumset;
X case O_RMDIR:
X tmps = str_get(st[1]);
X#ifdef TAINT
X taintproper("Insecure dependency in rmdir");
X#endif
X#ifdef RMDIR
X value = (double)(rmdir(tmps) >= 0);
X goto donumset;
X#else
X (void)sprintf(buf,"rmdir %s 2>&1",tmps);
X goto one_liner; /* see above in MKDIR */
X#endif
X case O_GETPPID:
X value = (double)getppid();
X goto donumset;
X case O_GETPGRP:
X#ifdef GETPGRP
X value = (double)getpgrp((int)str_gnum(st[1]));
X goto donumset;
X#else
X fatal("The getpgrp() function is unimplemented on this machine");
X break;
X#endif
X case O_SETPGRP:
X#ifdef SETPGRP
X argtype = (int)str_gnum(st[1]);
X anum = (int)str_gnum(st[2]);
X#ifdef TAINT
X taintproper("Insecure dependency in setpgrp");
X#endif
X value = (double)(setpgrp(argtype,anum) >= 0);
X goto donumset;
X#else
X fatal("The setpgrp() function is unimplemented on this machine");
X break;
X#endif
X case O_GETPRIORITY:
X#ifdef GETPRIORITY
X argtype = (int)str_gnum(st[1]);
X anum = (int)str_gnum(st[2]);
X value = (double)getpriority(argtype,anum);
X goto donumset;
X#else
X fatal("The getpriority() function is unimplemented on this machine");
X break;
X#endif
X case O_SETPRIORITY:
X#ifdef SETPRIORITY
X argtype = (int)str_gnum(st[1]);
X anum = (int)str_gnum(st[2]);
X optype = (int)str_gnum(st[3]);
X#ifdef TAINT
X taintproper("Insecure dependency in setpriority");
X#endif
X value = (double)(setpriority(argtype,anum,optype) >= 0);
X goto donumset;
X#else
X fatal("The setpriority() function is unimplemented on this machine");
X break;
X#endif
X case O_CHROOT:
X tmps = str_get(st[1]);
X#ifdef TAINT
X taintproper("Insecure dependency in chroot");
X#endif
X value = (double)(chroot(tmps) >= 0);
X goto donumset;
X case O_FCNTL:
X case O_IOCTL:
X if (maxarg <= 0)
X stab = last_in_stab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X argtype = (int)str_gnum(st[2]);
X#ifdef TAINT
X taintproper("Insecure dependency in ioctl");
X#endif
X value = (double)do_ctl(optype,stab,argtype,st[3]);
X goto donumset;
X case O_FLOCK:
X#ifdef FLOCK
X if (maxarg <= 0)
X stab = last_in_stab;
X else if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (stab && stab_io(stab))
X fp = stab_io(stab)->ifp;
X else
X fp = Nullfp;
X if (fp) {
X argtype = (int)str_gnum(st[2]);
X value = (double)(flock(fileno(fp),argtype) >= 0);
X }
X else
X value = 0;
X goto donumset;
X#else
X fatal("The flock() function is unimplemented on this machine");
X break;
X#endif
X case O_UNSHIFT:
X ary = stab_array(arg[1].arg_ptr.arg_stab);
X if (arglast[2] - arglast[1] != 1)
X do_unshift(ary,arglast);
X else {
X str = str_new(0); /* must copy the STR */
X str_sset(str,st[2]);
X aunshift(ary,1);
X (void)astore(ary,0,str);
X }
X value = (double)(ary->ary_fill + 1);
X break;
X case O_DOFILE:
X case O_EVAL:
X tmpstr =
X (arg[1].arg_type & A_MASK) != A_NULL ? st[1] : stab_val(defstab);
X#ifdef TAINT
X tainted |= tmpstr->str_tainted;
X taintproper("Insecure dependency in eval");
X#endif
X sp = do_eval(tmpstr, optype, arg[2].arg_ptr.arg_hash,
X gimme,arglast);
X goto array_return;
X
X case O_FTRREAD:
X argtype = 0;
X anum = S_IREAD;
X goto check_perm;
X case O_FTRWRITE:
X argtype = 0;
X anum = S_IWRITE;
X goto check_perm;
X case O_FTREXEC:
X argtype = 0;
X anum = S_IEXEC;
X goto check_perm;
X case O_FTEREAD:
X argtype = 1;
X anum = S_IREAD;
X goto check_perm;
X case O_FTEWRITE:
X argtype = 1;
X anum = S_IWRITE;
X goto check_perm;
X case O_FTEEXEC:
X argtype = 1;
X anum = S_IEXEC;
X check_perm:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X if (cando(anum,argtype,&statcache))
X goto say_yes;
X goto say_no;
X
X case O_FTIS:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X goto say_yes;
X case O_FTEOWNED:
X case O_FTROWNED:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X if (statcache.st_uid == (optype == O_FTEOWNED ? euid : uid) )
X goto say_yes;
X goto say_no;
X case O_FTZERO:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X if (!statcache.st_size)
X goto say_yes;
X goto say_no;
X case O_FTSIZE:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X if (statcache.st_size)
X goto say_yes;
X goto say_no;
X
X case O_FTSOCK:
X#ifdef S_IFSOCK
X anum = S_IFSOCK;
X goto check_file_type;
X#else
X goto say_no;
X#endif
X case O_FTCHR:
X anum = S_IFCHR;
X goto check_file_type;
X case O_FTBLK:
X anum = S_IFBLK;
X goto check_file_type;
X case O_FTFILE:
X anum = S_IFREG;
X goto check_file_type;
X case O_FTDIR:
X anum = S_IFDIR;
X check_file_type:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X if ((statcache.st_mode & S_IFMT) == anum )
X goto say_yes;
X goto say_no;
X case O_FTPIPE:
X#ifdef S_IFIFO
X anum = S_IFIFO;
X goto check_file_type;
X#else
X goto say_no;
X#endif
X case O_FTLINK:
X#ifdef SYMLINK
X if (lstat(str_get(st[1]),&statcache) < 0)
X goto say_undef;
X if ((statcache.st_mode & S_IFMT) == S_IFLNK )
X goto say_yes;
X#endif
X goto say_no;
X case O_SYMLINK:
X#ifdef SYMLINK
X tmps = str_get(st[1]);
X tmps2 = str_get(st[2]);
X#ifdef TAINT
X taintproper("Insecure dependency in symlink");
X#endif
X value = (double)(symlink(tmps,tmps2) >= 0);
X goto donumset;
X#else
X fatal("Unsupported function symlink()");
X#endif
X case O_READLINK:
X#ifdef SYMLINK
X anum = readlink(str_get(st[1]),buf,sizeof buf);
X if (anum < 0)
X goto say_undef;
X str_nset(str,buf,anum);
X break;
X#else
X fatal("Unsupported function readlink()");
X#endif
X case O_FTSUID:
X anum = S_ISUID;
X goto check_xid;
X case O_FTSGID:
X anum = S_ISGID;
X goto check_xid;
X case O_FTSVTX:
X anum = S_ISVTX;
X check_xid:
X if (mystat(arg,st[1]) < 0)
X goto say_undef;
X if (statcache.st_mode & anum)
X goto say_yes;
X goto say_no;
X case O_FTTTY:
X if (arg[1].arg_type & A_DONT) {
X stab = arg[1].arg_ptr.arg_stab;
X tmps = "";
X }
X else
X stab = stabent(tmps = str_get(st[1]),FALSE);
X if (stab && stab_io(stab) && stab_io(stab)->ifp)
X anum = fileno(stab_io(stab)->ifp);
X else if (isdigit(*tmps))
X anum = atoi(tmps);
X else
X goto say_undef;
X if (isatty(anum))
X goto say_yes;
X goto say_no;
X case O_FTTEXT:
X case O_FTBINARY:
X str = do_fttext(arg,st[1]);
X break;
X#ifdef SOCKET
X case O_SOCKET:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X#ifndef lint
X value = (double)do_socket(stab,arglast);
X#else
X (void)do_socket(stab,arglast);
X#endif
X goto donumset;
X case O_BIND:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X#ifndef lint
X value = (double)do_bind(stab,arglast);
X#else
X (void)do_bind(stab,arglast);
X#endif
X goto donumset;
X case O_CONNECT:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X#ifndef lint
X value = (double)do_connect(stab,arglast);
X#else
X (void)do_connect(stab,arglast);
X#endif
X goto donumset;
X case O_LISTEN:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X#ifndef lint
X value = (double)do_listen(stab,arglast);
X#else
X (void)do_listen(stab,arglast);
X#endif
X goto donumset;
X case O_ACCEPT:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if ((arg[2].arg_type & A_MASK) == A_WORD)
X stab2 = arg[2].arg_ptr.arg_stab;
X else
X stab2 = stabent(str_get(st[2]),TRUE);
X do_accept(str,stab,stab2);
X STABSET(str);
X break;
X case O_GHBYNAME:
X case O_GHBYADDR:
X case O_GHOSTENT:
X sp = do_ghent(optype,
X gimme,arglast);
X goto array_return;
X case O_GNBYNAME:
X case O_GNBYADDR:
X case O_GNETENT:
X sp = do_gnent(optype,
X gimme,arglast);
X goto array_return;
X case O_GPBYNAME:
X case O_GPBYNUMBER:
X case O_GPROTOENT:
X sp = do_gpent(optype,
X gimme,arglast);
X goto array_return;
X case O_GSBYNAME:
X case O_GSBYPORT:
X case O_GSERVENT:
X sp = do_gsent(optype,
X gimme,arglast);
X goto array_return;
X case O_SHOSTENT:
X value = (double) sethostent((int)str_gnum(st[1]));
X goto donumset;
X case O_SNETENT:
X value = (double) setnetent((int)str_gnum(st[1]));
X goto donumset;
X case O_SPROTOENT:
X value = (double) setprotoent((int)str_gnum(st[1]));
X goto donumset;
X case O_SSERVENT:
X value = (double) setservent((int)str_gnum(st[1]));
X goto donumset;
X case O_EHOSTENT:
X value = (double) endhostent();
X goto donumset;
X case O_ENETENT:
X value = (double) endnetent();
X goto donumset;
X case O_EPROTOENT:
X value = (double) endprotoent();
X goto donumset;
X case O_ESERVENT:
X value = (double) endservent();
X goto donumset;
X case O_SSELECT:
X sp = do_select(gimme,arglast);
X goto array_return;
X case O_SOCKETPAIR:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if ((arg[2].arg_type & A_MASK) == A_WORD)
X stab2 = arg[2].arg_ptr.arg_stab;
X else
X stab2 = stabent(str_get(st[2]),TRUE);
X#ifndef lint
X value = (double)do_spair(stab,stab2,arglast);
X#else
X (void)do_spair(stab,stab2,arglast);
X#endif
X goto donumset;
X
X#else /* SOCKET not defined */
X case O_SOCKET:
X case O_BIND:
X case O_CONNECT:
X case O_LISTEN:
X case O_ACCEPT:
X case O_SSELECT:
X case O_SOCKETPAIR:
X case O_GHBYNAME:
X case O_GHBYADDR:
X case O_GHOSTENT:
X case O_GNBYNAME:
X case O_GNBYADDR:
X case O_GNETENT:
X case O_GPBYNAME:
X case O_GPBYNUMBER:
X case O_GPROTOENT:
X case O_GSBYNAME:
X case O_GSBYPORT:
X case O_GSERVENT:
X case O_SHOSTENT:
X case O_SNETENT:
X case O_SPROTOENT:
X case O_SSERVENT:
X case O_EHOSTENT:
X case O_ENETENT:
X case O_EPROTOENT:
X case O_ESERVENT:
X badsock:
X fatal("Unsupported socket function");
X#endif /* SOCKET */
X case O_WANTARRAY:
X if (gimme == G_ARRAY)
X goto say_yes;
X goto say_no;
X case O_FILENO:
X if ((arg[1].arg_type & A_MASK) == A_WORD)
X stab = arg[1].arg_ptr.arg_stab;
X else
X stab = stabent(str_get(st[1]),TRUE);
X if (!stab || !(stio = stab_io(stab)) || !(fp = stio->ifp))
X goto say_undef;
X value = fileno(fp);
X goto donumset;
X case O_VEC:
X sp = do_vec(str == st[1], arg->arg_ptr.arg_str, arglast);
X goto array_return;
X }
X
X normal_return:
X st[1] = str;
X#ifdef DEBUGGING
X if (debug) {
X dlevel--;
X if (debug & 8)
X deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str));
X }
X#endif
X return arglast[0] + 1;
X
Xarray_return:
X#ifdef DEBUGGING
X if (debug) {
X dlevel--;
X if (debug & 8)
X deb("%s RETURNS ARRAY OF %d ARGS\n",opname[optype],sp - arglast[0]);
X }
X#endif
X return sp;
X
Xsay_yes:
X str = &str_yes;
X goto normal_return;
X
Xsay_no:
X str = &str_no;
X goto normal_return;
X
Xsay_undef:
X str = &str_undef;
X goto normal_return;
X
Xsay_zero:
X value = 0.0;
X /* FALL THROUGH */
X
Xdonumset:
X str_numset(str,value);
X STABSET(str);
X st[1] = str;
X#ifdef DEBUGGING
X if (debug) {
X dlevel--;
X if (debug & 8)
X deb("%s RETURNS \"%f\"\n",opname[optype],value);
X }
X#endif
X return arglast[0] + 1;
X}
!STUFFY!FUNK!
echo Extracting t/op.array
sed >t/op.array <<'!STUFFY!FUNK!' -e 's/X//'
X#!./perl
X
X# $Header$
X
Xprint "1..30\n";
X
X@ary = (1,2,3,4,5);
Xif (join('',@ary) eq '12345') {print "ok 1\n";} else {print "not ok 1\n";}
X
X$tmp = $ary[$#ary]; --$#ary;
Xif ($tmp == 5) {print "ok 2\n";} else {print "not ok 2\n";}
Xif ($#ary == 3) {print "ok 3\n";} else {print "not ok 3\n";}
Xif (join('',@ary) eq '1234') {print "ok 4\n";} else {print "not ok 4\n";}
X
X$[ = 1;
X@ary = (1,2,3,4,5);
Xif (join('',@ary) eq '12345') {print "ok 5\n";} else {print "not ok 5\n";}
X
X$tmp = $ary[$#ary]; --$#ary;
Xif ($tmp == 5) {print "ok 6\n";} else {print "not ok 6\n";}
Xif ($#ary == 4) {print "ok 7\n";} else {print "not ok 7\n";}
Xif (join('',@ary) eq '1234') {print "ok 8\n";} else {print "not ok 8\n";}
X
Xif ($ary[5] eq '') {print "ok 9\n";} else {print "not ok 9\n";}
X
X$#ary += 1; # see if we can recover element 5
Xif ($#ary == 5) {print "ok 10\n";} else {print "not ok 10\n";}
Xif ($ary[5] == 5) {print "ok 11\n";} else {print "not ok 11\n";}
X
X$[ = 0;
X@foo = ();
X$r = join(',', $#foo, @foo);
Xif ($r eq "-1") {print "ok 12\n";} else {print "not ok 12 $r\n";}
X$foo[0] = '0';
X$r = join(',', $#foo, @foo);
Xif ($r eq "0,0") {print "ok 13\n";} else {print "not ok 13 $r\n";}
X$foo[2] = '2';
X$r = join(',', $#foo, @foo);
Xif ($r eq "2,0,,2") {print "ok 14\n";} else {print "not ok 14 $r\n";}
X@bar = ();
X$bar[0] = '0';
X$bar[1] = '1';
X$r = join(',', $#bar, @bar);
Xif ($r eq "1,0,1") {print "ok 15\n";} else {print "not ok 15 $r\n";}
X@bar = ();
X$r = join(',', $#bar, @bar);
Xif ($r eq "-1") {print "ok 16\n";} else {print "not ok 16 $r\n";}
X$bar[0] = '0';
X$r = join(',', $#bar, @bar);
Xif ($r eq "0,0") {print "ok 17\n";} else {print "not ok 17 $r\n";}
X$bar[2] = '2';
X$r = join(',', $#bar, @bar);
Xif ($r eq "2,0,,2") {print "ok 18\n";} else {print "not ok 18 $r\n";}
Xreset 'b';
X@bar = ();
X$bar[0] = '0';
X$r = join(',', $#bar, @bar);
Xif ($r eq "0,0") {print "ok 19\n";} else {print "not ok 19 $r\n";}
X$bar[2] = '2';
X$r = join(',', $#bar, @bar);
Xif ($r eq "2,0,,2") {print "ok 20\n";} else {print "not ok 20 $r\n";}
X
X$foo = 'now is the time';
Xif (($F1,$F2,$Etc) = ($foo =~ /^(\S+)\s+(\S+)\s*(.*)/)) {
X if ($F1 eq 'now' && $F2 eq 'is' && $Etc eq 'the time') {
X print "ok 21\n";
X }
X else {
X print "not ok 21\n";
X }
X}
Xelse {
X print "not ok 21\n";
X}
X
X$foo = 'lskjdf';
Xif ($cnt = (($F1,$F2,$Etc) = ($foo =~ /^(\S+)\s+(\S+)\s*(.*)/))) {
X print "not ok 22 $cnt $F1:$F2:$Etc\n";
X}
Xelse {
X print "ok 22\n";
X}
X
X%foo = ('blurfl','dyick','foo','bar','etc.','etc.');
X%bar = %foo;
Xprint $bar{'foo'} eq 'bar' ? "ok 23\n" : "not ok 23\n";
X%bar = ();
Xprint $bar{'foo'} eq '' ? "ok 24\n" : "not ok 24\n";
X(%bar,$a,$b) = (%foo,'how','now');
Xprint $bar{'foo'} eq 'bar' ? "ok 25\n" : "not ok 25\n";
Xprint $bar{'how'} eq 'now' ? "ok 26\n" : "not ok 26\n";
X@bar{keys %foo} = values %foo;
Xprint $bar{'foo'} eq 'bar' ? "ok 27\n" : "not ok 27\n";
Xprint $bar{'how'} eq 'now' ? "ok 28\n" : "not ok 28\n";
X
X@foo = grep(/e/,split(' ','now is the time for all good men to come to'));
Xprint join(' ',@foo) eq 'the time men come' ? "ok 29\n" : "not ok 29\n";
X
X@foo = grep(!/e/,split(' ','now is the time for all good men to come to'));
Xprint join(' ',@foo) eq 'now is for all good to to' ? "ok 30\n" : "not ok 30\n";
!STUFFY!FUNK!
echo ""
echo "End of kit 5 (of 23)"
cat /dev/null >kit5isdone
run=''
config=''
for iskit in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23; do
if test -f kit${iskit}isdone; then
run="$run $iskit"
else
todo="$todo $iskit"
fi
done
case $todo in
'')
echo "You have run all your kits. Please read README and then type Configure."
chmod 755 Configure
;;
*) echo "You have run$run."
echo "You still need to run$todo."
;;
esac
: Someone might mail this, so...
exit