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pp_hot.c
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pp_hot.c
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/* pp_hot.c
*
* Copyright (c) 1991-1994, Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
*/
/*
* Then he heard Merry change the note, and up went the Horn-cry of Buckland,
* shaking the air.
*
* Awake! Awake! Fear, Fire, Foes! Awake!
* Fire, Foes! Awake!
*/
#include "EXTERN.h"
#include "perl.h"
/* Hot code. */
PP(pp_const)
{
dSP;
XPUSHs(cSVOP->op_sv);
RETURN;
}
PP(pp_nextstate)
{
curcop = (COP*)op;
TAINT_NOT; /* Each statement is presumed innocent */
stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
FREETMPS;
return NORMAL;
}
PP(pp_gvsv)
{
dSP;
EXTEND(sp,1);
if (op->op_private & OPpLVAL_INTRO)
PUSHs(save_scalar(cGVOP->op_gv));
else
PUSHs(GvSV(cGVOP->op_gv));
RETURN;
}
PP(pp_null)
{
return NORMAL;
}
PP(pp_pushmark)
{
PUSHMARK(stack_sp);
return NORMAL;
}
PP(pp_stringify)
{
dSP; dTARGET;
STRLEN len;
char *s;
s = SvPV(TOPs,len);
sv_setpvn(TARG,s,len);
SETTARG;
RETURN;
}
PP(pp_gv)
{
dSP;
XPUSHs((SV*)cGVOP->op_gv);
RETURN;
}
PP(pp_and)
{
dSP;
if (!SvTRUE(TOPs))
RETURN;
else {
--SP;
RETURNOP(cLOGOP->op_other);
}
}
PP(pp_sassign)
{
dSP; dPOPTOPssrl;
if (op->op_private & OPpASSIGN_BACKWARDS) {
SV *temp;
temp = left; left = right; right = temp;
}
if (tainting && tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) ||
!mg_find(left, 't'))) {
TAINT_NOT;
}
SvSetSV(right, left);
SvSETMAGIC(right);
SETs(right);
RETURN;
}
PP(pp_cond_expr)
{
dSP;
if (SvTRUEx(POPs))
RETURNOP(cCONDOP->op_true);
else
RETURNOP(cCONDOP->op_false);
}
PP(pp_unstack)
{
I32 oldsave;
TAINT_NOT; /* Each statement is presumed innocent */
stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp;
FREETMPS;
oldsave = scopestack[scopestack_ix - 1];
LEAVE_SCOPE(oldsave);
return NORMAL;
}
PP(pp_seq)
{
dSP; tryAMAGICbinSET(seq,0);
{
dPOPTOPssrl;
SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
RETURN;
}
}
PP(pp_concat)
{
dSP; dATARGET; dPOPTOPssrl;
STRLEN len;
char *s;
if (TARG != left) {
s = SvPV(left,len);
sv_setpvn(TARG,s,len);
}
s = SvPV(right,len);
sv_catpvn(TARG,s,len);
SETTARG;
RETURN;
}
PP(pp_padsv)
{
dSP; dTARGET;
XPUSHs(TARG);
if (op->op_private & OPpLVAL_INTRO)
SAVECLEARSV(curpad[op->op_targ]);
RETURN;
}
PP(pp_readline)
{
last_in_gv = (GV*)(*stack_sp--);
return do_readline();
}
PP(pp_eq)
{
dSP; tryAMAGICbinSET(eq,0);
{
dPOPnv;
SETs((TOPn == value) ? &sv_yes : &sv_no);
RETURN;
}
}
PP(pp_preinc)
{
dSP;
sv_inc(TOPs);
SvSETMAGIC(TOPs);
return NORMAL;
}
PP(pp_or)
{
dSP;
if (SvTRUE(TOPs))
RETURN;
else {
--SP;
RETURNOP(cLOGOP->op_other);
}
}
PP(pp_add)
{
dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
{
dPOPTOPnnrl;
SETn( left + right );
RETURN;
}
}
PP(pp_aelemfast)
{
dSP;
AV *av = GvAV((GV*)cSVOP->op_sv);
SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD);
PUSHs(svp ? *svp : &sv_undef);
RETURN;
}
PP(pp_join)
{
dSP; dMARK; dTARGET;
MARK++;
do_join(TARG, *MARK, MARK, SP);
SP = MARK;
SETs(TARG);
RETURN;
}
PP(pp_pushre)
{
dSP;
XPUSHs((SV*)op);
RETURN;
}
/* Oversized hot code. */
PP(pp_print)
{
dSP; dMARK; dORIGMARK;
GV *gv;
IO *io;
register FILE *fp;
if (op->op_flags & OPf_STACKED)
gv = (GV*)*++MARK;
else
gv = defoutgv;
if (!(io = GvIO(gv))) {
if (dowarn)
warn("Filehandle %s never opened", GvNAME(gv));
errno = EBADF;
goto just_say_no;
}
else if (!(fp = IoOFP(io))) {
if (dowarn) {
if (IoIFP(io))
warn("Filehandle %s opened only for input", GvNAME(gv));
else
warn("print on closed filehandle %s", GvNAME(gv));
}
errno = EBADF;
goto just_say_no;
}
else {
MARK++;
if (ofslen) {
while (MARK <= SP) {
if (!do_print(*MARK, fp))
break;
MARK++;
if (MARK <= SP) {
if (fwrite1(ofs, 1, ofslen, fp) == 0 || ferror(fp)) {
MARK--;
break;
}
}
}
}
else {
while (MARK <= SP) {
if (!do_print(*MARK, fp))
break;
MARK++;
}
}
if (MARK <= SP)
goto just_say_no;
else {
if (orslen)
if (fwrite1(ors, 1, orslen, fp) == 0 || ferror(fp))
goto just_say_no;
if (IoFLAGS(io) & IOf_FLUSH)
if (fflush(fp) == EOF)
goto just_say_no;
}
}
SP = ORIGMARK;
PUSHs(&sv_yes);
RETURN;
just_say_no:
SP = ORIGMARK;
PUSHs(&sv_undef);
RETURN;
}
PP(pp_rv2av)
{
dSP; dPOPss;
AV *av;
if (SvROK(sv)) {
wasref:
av = (AV*)SvRV(sv);
if (SvTYPE(av) != SVt_PVAV)
DIE("Not an ARRAY reference");
if (op->op_private & OPpLVAL_INTRO)
av = (AV*)save_svref((SV**)sv);
if (op->op_flags & OPf_REF) {
PUSHs((SV*)av);
RETURN;
}
}
else {
if (SvTYPE(sv) == SVt_PVAV) {
av = (AV*)sv;
if (op->op_flags & OPf_REF) {
PUSHs((SV*)av);
RETURN;
}
}
else {
if (SvTYPE(sv) != SVt_PVGV) {
if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvROK(sv))
goto wasref;
}
if (!SvOK(sv)) {
if (op->op_flags & OPf_REF ||
op->op_private & HINT_STRICT_REFS)
DIE(no_usym, "an ARRAY");
RETPUSHUNDEF;
}
if (op->op_private & HINT_STRICT_REFS)
DIE(no_symref, "an ARRAY");
sv = (SV*)gv_fetchpv(SvPV(sv, na), TRUE, SVt_PVAV);
}
av = GvAVn(sv);
if (op->op_private & OPpLVAL_INTRO)
av = save_ary(sv);
if (op->op_flags & OPf_REF) {
PUSHs((SV*)av);
RETURN;
}
}
}
if (GIMME == G_ARRAY) {
I32 maxarg = AvFILL(av) + 1;
EXTEND(SP, maxarg);
Copy(AvARRAY(av), SP+1, maxarg, SV*);
SP += maxarg;
}
else {
dTARGET;
I32 maxarg = AvFILL(av) + 1;
PUSHi(maxarg);
}
RETURN;
}
PP(pp_rv2hv)
{
dSP; dTOPss;
HV *hv;
if (SvROK(sv)) {
wasref:
hv = (HV*)SvRV(sv);
if (SvTYPE(hv) != SVt_PVHV)
DIE("Not a HASH reference");
if (op->op_private & OPpLVAL_INTRO)
hv = (HV*)save_svref((SV**)sv);
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
else {
if (SvTYPE(sv) == SVt_PVHV) {
hv = (HV*)sv;
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
else {
if (SvTYPE(sv) != SVt_PVGV) {
if (SvGMAGICAL(sv)) {
mg_get(sv);
if (SvROK(sv))
goto wasref;
}
if (!SvOK(sv)) {
if (op->op_flags & OPf_REF ||
op->op_private & HINT_STRICT_REFS)
DIE(no_usym, "a HASH");
RETSETUNDEF;
}
if (op->op_private & HINT_STRICT_REFS)
DIE(no_symref, "a HASH");
sv = (SV*)gv_fetchpv(SvPV(sv, na), TRUE, SVt_PVHV);
}
hv = GvHVn(sv);
if (op->op_private & OPpLVAL_INTRO)
hv = save_hash(sv);
if (op->op_flags & OPf_REF) {
SETs((SV*)hv);
RETURN;
}
}
}
if (GIMME == G_ARRAY) { /* array wanted */
*stack_sp = (SV*)hv;
return do_kv(ARGS);
}
else {
dTARGET;
if (HvFILL(hv)) {
sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1);
sv_setpv(TARG, buf);
}
else
sv_setiv(TARG, 0);
SETTARG;
RETURN;
}
}
PP(pp_aassign)
{
dSP;
SV **lastlelem = stack_sp;
SV **lastrelem = stack_base + POPMARK;
SV **firstrelem = stack_base + POPMARK + 1;
SV **firstlelem = lastrelem + 1;
register SV **relem;
register SV **lelem;
register SV *sv;
register AV *ary;
HV *hash;
I32 i;
int magic;
delaymagic = DM_DELAY; /* catch simultaneous items */
/* If there's a common identifier on both sides we have to take
* special care that assigning the identifier on the left doesn't
* clobber a value on the right that's used later in the list.
*/
if (op->op_private & OPpASSIGN_COMMON) {
for (relem = firstrelem; relem <= lastrelem; relem++) {
/*SUPPRESS 560*/
if (sv = *relem)
*relem = sv_mortalcopy(sv);
}
}
relem = firstrelem;
lelem = firstlelem;
ary = Null(AV*);
hash = Null(HV*);
while (lelem <= lastlelem) {
sv = *lelem++;
switch (SvTYPE(sv)) {
case SVt_PVAV:
ary = (AV*)sv;
magic = SvSMAGICAL(ary) != 0;
av_clear(ary);
i = 0;
while (relem <= lastrelem) { /* gobble up all the rest */
sv = NEWSV(28,0);
assert(*relem);
sv_setsv(sv,*relem);
*(relem++) = sv;
(void)av_store(ary,i++,sv);
if (magic)
mg_set(sv);
}
break;
case SVt_PVHV: {
char *tmps;
SV *tmpstr;
hash = (HV*)sv;
magic = SvSMAGICAL(hash) != 0;
hv_clear(hash);
while (relem < lastrelem) { /* gobble up all the rest */
STRLEN len;
if (*relem)
sv = *(relem++);
else
sv = &sv_no, relem++;
tmps = SvPV(sv, len);
tmpstr = NEWSV(29,0);
if (*relem)
sv_setsv(tmpstr,*relem); /* value */
*(relem++) = tmpstr;
(void)hv_store(hash,tmps,len,tmpstr,0);
if (magic)
mg_set(tmpstr);
}
}
break;
default:
if (SvTHINKFIRST(sv)) {
if (SvREADONLY(sv) && curcop != &compiling) {
if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no)
DIE(no_modify);
if (relem <= lastrelem)
relem++;
break;
}
if (SvROK(sv))
sv_unref(sv);
}
if (relem <= lastrelem) {
sv_setsv(sv, *relem);
*(relem++) = sv;
}
else
sv_setsv(sv, &sv_undef);
SvSETMAGIC(sv);
break;
}
}
if (delaymagic & ~DM_DELAY) {
if (delaymagic & DM_UID) {
#ifdef HAS_SETRESUID
(void)setresuid(uid,euid,(Uid_t)-1);
#else /* not HAS_SETRESUID */
#ifdef HAS_SETREUID
(void)setreuid(uid,euid);
#else /* not HAS_SETREUID */
#ifdef HAS_SETRUID
if ((delaymagic & DM_UID) == DM_RUID) {
(void)setruid(uid);
delaymagic =~ DM_RUID;
}
#endif /* HAS_SETRUID */
#endif /* HAS_SETRESUID */
#ifdef HAS_SETEUID
if ((delaymagic & DM_UID) == DM_EUID) {
(void)seteuid(uid);
delaymagic =~ DM_EUID;
}
#endif /* HAS_SETEUID */
if (delaymagic & DM_UID) {
if (uid != euid)
DIE("No setreuid available");
(void)setuid(uid);
}
#endif /* not HAS_SETREUID */
uid = (int)getuid();
euid = (int)geteuid();
}
if (delaymagic & DM_GID) {
#ifdef HAS_SETRESGID
(void)setresgid(gid,egid,(Gid_t)-1);
#else /* not HAS_SETREGID */
#ifdef HAS_SETREGID
(void)setregid(gid,egid);
#else /* not HAS_SETREGID */
#endif /* not HAS_SETRESGID */
#ifdef HAS_SETRGID
if ((delaymagic & DM_GID) == DM_RGID) {
(void)setrgid(gid);
delaymagic =~ DM_RGID;
}
#endif /* HAS_SETRGID */
#ifdef HAS_SETRESGID
(void)setresgid(gid,egid,(Gid_t)-1);
#else /* not HAS_SETREGID */
#ifdef HAS_SETEGID
if ((delaymagic & DM_GID) == DM_EGID) {
(void)setegid(gid);
delaymagic =~ DM_EGID;
}
#endif /* HAS_SETEGID */
if (delaymagic & DM_GID) {
if (gid != egid)
DIE("No setregid available");
(void)setgid(gid);
}
#endif /* not HAS_SETRESGID */
#endif /* not HAS_SETREGID */
gid = (int)getgid();
egid = (int)getegid();
}
tainting |= (euid != uid || egid != gid);
}
delaymagic = 0;
if (GIMME == G_ARRAY) {
if (ary || hash)
SP = lastrelem;
else
SP = firstrelem + (lastlelem - firstlelem);
RETURN;
}
else {
SP = firstrelem;
for (relem = firstrelem; relem <= lastrelem; ++relem) {
if (SvOK(*relem)) {
dTARGET;
SETi(lastrelem - firstrelem + 1);
RETURN;
}
}
RETSETUNDEF;
}
}
PP(pp_match)
{
dSP; dTARG;
register PMOP *pm = cPMOP;
register char *t;
register char *s;
char *strend;
I32 global;
I32 safebase;
char *truebase;
register REGEXP *rx = pm->op_pmregexp;
I32 gimme = GIMME;
STRLEN len;
if (op->op_flags & OPf_STACKED)
TARG = POPs;
else {
TARG = GvSV(defgv);
EXTEND(SP,1);
}
s = SvPV(TARG, len);
strend = s + len;
if (!s)
DIE("panic: do_match");
if (pm->op_pmflags & PMf_USED) {
if (gimme == G_ARRAY)
RETURN;
RETPUSHNO;
}
if (!rx->prelen && curpm) {
pm = curpm;
rx = pm->op_pmregexp;
}
truebase = t = s;
if (global = pm->op_pmflags & PMf_GLOBAL) {
rx->startp[0] = 0;
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
MAGIC* mg = mg_find(TARG, 'g');
if (mg && mg->mg_len >= 0)
rx->endp[0] = rx->startp[0] = s + mg->mg_len;
}
}
safebase = (gimme == G_ARRAY) || global;
if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
SAVEINT(multiline);
multiline = pm->op_pmflags & PMf_MULTILINE;
}
play_it_again:
if (global && rx->startp[0]) {
t = s = rx->endp[0];
if (s > strend)
goto nope;
}
if (pm->op_pmshort) {
if (pm->op_pmflags & PMf_SCANFIRST) {
if (SvSCREAM(TARG)) {
if (screamfirst[BmRARE(pm->op_pmshort)] < 0)
goto nope;
else if (!(s = screaminstr(TARG, pm->op_pmshort)))
goto nope;
else if (pm->op_pmflags & PMf_ALL)
goto yup;
}
else if (!(s = fbm_instr((unsigned char*)s,
(unsigned char*)strend, pm->op_pmshort)))
goto nope;
else if (pm->op_pmflags & PMf_ALL)
goto yup;
if (s && rx->regback >= 0) {
++BmUSEFUL(pm->op_pmshort);
s -= rx->regback;
if (s < t)
s = t;
}
else
s = t;
}
else if (!multiline) {
if (*SvPVX(pm->op_pmshort) != *s ||
bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) {
if (pm->op_pmflags & PMf_FOLD) {
if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) )
goto nope;
}
else
goto nope;
}
}
if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) {
SvREFCNT_dec(pm->op_pmshort);
pm->op_pmshort = Nullsv; /* opt is being useless */
}
}
if (!rx->nparens && !global) {
gimme = G_SCALAR; /* accidental array context? */
safebase = FALSE;
}
if (regexec(rx, s, strend, truebase, 0,
SvSCREAM(TARG) ? TARG : Nullsv,
safebase)) {
curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
pm->op_pmflags |= PMf_USED;
goto gotcha;
}
else
goto ret_no;
/*NOTREACHED*/
gotcha:
if (gimme == G_ARRAY) {
I32 iters, i, len;
iters = rx->nparens;
if (global && !iters)
i = 1;
else
i = 0;
EXTEND(SP, iters + i);
for (i = !i; i <= iters; i++) {
PUSHs(sv_newmortal());
/*SUPPRESS 560*/
if ((s = rx->startp[i]) && rx->endp[i] ) {
len = rx->endp[i] - s;
sv_setpvn(*SP, s, len);
}
}
if (global) {
truebase = rx->subbeg;
if (rx->startp[0] && rx->startp[0] == rx->endp[0])
++rx->endp[0];
goto play_it_again;
}
RETURN;
}
else {
if (global) {
MAGIC* mg = 0;
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG))
mg = mg_find(TARG, 'g');
if (!mg) {
sv_magic(TARG, (SV*)0, 'g', Nullch, 0);
mg = mg_find(TARG, 'g');
}
mg->mg_len = rx->startp[0] ? rx->endp[0] - truebase : -1;
}
RETPUSHYES;
}
yup:
++BmUSEFUL(pm->op_pmshort);
curpm = pm;
if (pm->op_pmflags & PMf_ONCE)
pm->op_pmflags |= PMf_USED;
if (global) {
rx->subbeg = truebase;
rx->subend = strend;
rx->startp[0] = s;
rx->endp[0] = s + SvCUR(pm->op_pmshort);
goto gotcha;
}
if (sawampersand) {
char *tmps;
if (rx->subbase)
Safefree(rx->subbase);
tmps = rx->subbase = savepvn(t, strend-t);
rx->subbeg = tmps;
rx->subend = tmps + (strend-t);
tmps = rx->startp[0] = tmps + (s - t);
rx->endp[0] = tmps + SvCUR(pm->op_pmshort);
}
RETPUSHYES;
nope:
if (pm->op_pmshort)
++BmUSEFUL(pm->op_pmshort);
ret_no:
if (global) {
if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) {
MAGIC* mg = mg_find(TARG, 'g');
if (mg)
mg->mg_len = -1;
}
}
if (gimme == G_ARRAY)
RETURN;
RETPUSHNO;
}
OP *
do_readline()
{
dSP; dTARGETSTACKED;
register SV *sv;
STRLEN tmplen = 0;
STRLEN offset;
FILE *fp;
register IO *io = GvIO(last_in_gv);
register I32 type = op->op_type;
fp = Nullfp;
if (io) {
fp = IoIFP(io);
if (!fp) {
if (IoFLAGS(io) & IOf_ARGV) {
if (IoFLAGS(io) & IOf_START) {
IoFLAGS(io) &= ~IOf_START;
IoLINES(io) = 0;
if (av_len(GvAVn(last_in_gv)) < 0) {
SV *tmpstr = newSVpv("-", 1); /* assume stdin */
av_push(GvAVn(last_in_gv), tmpstr);
}
}
fp = nextargv(last_in_gv);
if (!fp) { /* Note: fp != IoIFP(io) */
(void)do_close(last_in_gv, FALSE); /* now it does*/
IoFLAGS(io) |= IOf_START;
}
}
else if (type == OP_GLOB) {
SV *tmpcmd = NEWSV(55, 0);
SV *tmpglob = POPs;
ENTER;
SAVEFREESV(tmpcmd);
#ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */
/* since spawning off a process is a real performance hit */
{
#include <descrip.h>
#include <lib$routines.h>
#include <nam.h>
#include <rmsdef.h>
char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'};
char vmsspec[NAM$C_MAXRSS+1];
char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp;
char tmpfnam[L_tmpnam] = "SYS$SCRATCH:";
$DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;");
FILE *tmpfp;
STRLEN i;
struct dsc$descriptor_s wilddsc
= {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0};
struct dsc$descriptor_vs rsdsc
= {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt};
unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0;
/* We could find out if there's an explicit dev/dir or version
by peeking into lib$find_file's internal context at
((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb
but that's unsupported, so I don't want to do it now and
have it bite someone in the future. */
strcat(tmpfnam,tmpnam(NULL));
cp = SvPV(tmpglob,i);
for (; i; i--) {
if (cp[i] == ';') hasver = 1;
if (cp[i] == '.') {
if (sts) hasver = 1;
else sts = 1;
}
if (cp[i] == '/') {
hasdir = isunix = 1;
break;
}
if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') {
hasdir = 1;
break;
}
}
if ((tmpfp = fopen(tmpfnam,"w+","fop=dlt")) != NULL) {
ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL);
if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer);
while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt,
&dfltdsc,NULL,NULL,NULL))&1)) {
end = rstr + (unsigned long int) *rslt;
if (!hasver) while (*end != ';') end--;
*(end++) = '\n'; *end = '\0';
for (cp = rstr; *cp; cp++) *cp = _tolower(*cp);
if (hasdir) {
if (isunix) trim_unixpath(SvPVX(tmpglob),rstr);
begin = rstr;
}
else {
begin = end;
while (*(--begin) != ']' && *begin != '>') ;
++begin;
}
ok = (fputs(begin,tmpfp) != EOF);
}
if (cxt) (void)lib$find_file_end(&cxt);
if (ok && sts != RMS$_NMF) ok = 0;
if (!ok) {
fp = NULL;
}
else {
rewind(tmpfp);
IoTYPE(io) = '<';
IoIFP(io) = fp = tmpfp;
}
}
}
#else /* !VMS */
#ifdef DOSISH
sv_setpv(tmpcmd, "perlglob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, " |");
#else
#ifdef CSH
sv_setpvn(tmpcmd, cshname, cshlen);
sv_catpv(tmpcmd, " -cf 'set nonomatch; glob ");
sv_catsv(tmpcmd, tmpglob);
sv_catpv(tmpcmd, "'|");
#else
sv_setpv(tmpcmd, "echo ");
sv_catsv(tmpcmd, tmpglob);
#if 'z' - 'a' == 25
sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|");
#else
sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|");
#endif
#endif /* !CSH */
#endif /* !MSDOS */
(void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd),Nullfp);
fp = IoIFP(io);
#endif /* !VMS */
LEAVE;
}
}
else if (type == OP_GLOB)
SP--;
}
if (!fp) {
if (dowarn)
warn("Read on closed filehandle <%s>", GvENAME(last_in_gv));
if (GIMME == G_SCALAR) {
(void)SvOK_off(TARG);
PUSHTARG;
}
RETURN;
}
if (GIMME == G_ARRAY) {
sv = sv_2mortal(NEWSV(57, 80));
offset = 0;
}
else {
sv = TARG;
(void)SvUPGRADE(sv, SVt_PV);
tmplen = SvLEN(sv); /* remember if already alloced */
if (!tmplen)
Sv_Grow(sv, 80); /* try short-buffering it */
if (type == OP_RCATLINE)
offset = SvCUR(sv);
else
offset = 0;
}
for (;;) {
if (!sv_gets(sv, fp, offset)) {
clearerr(fp);
if (IoFLAGS(io) & IOf_ARGV) {
fp = nextargv(last_in_gv);
if (fp)
continue;
(void)do_close(last_in_gv, FALSE);
IoFLAGS(io) |= IOf_START;
}
else if (type == OP_GLOB) {
(void)do_close(last_in_gv, FALSE);