X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/151cea252da4316fddd84956c61bbb23ecff1bb5..636013b3f52d8d822c7b83d79398d51b08c82838:/pp_sys.c diff --git a/pp_sys.c b/pp_sys.c index 958a133..a6603ce 100644 --- a/pp_sys.c +++ b/pp_sys.c @@ -248,6 +248,7 @@ S_emulate_eaccess(pTHX_ const char* path, Mode_t mode) if (setresuid(euid, ruid, (Uid_t)-1)) #endif #endif + /* diag_listed_as: entering effective %s failed */ Perl_croak(aTHX_ "entering effective uid failed"); #endif @@ -261,6 +262,7 @@ S_emulate_eaccess(pTHX_ const char* path, Mode_t mode) if (setresgid(egid, rgid, (Gid_t)-1)) #endif #endif + /* diag_listed_as: entering effective %s failed */ Perl_croak(aTHX_ "entering effective gid failed"); #endif @@ -273,6 +275,7 @@ S_emulate_eaccess(pTHX_ const char* path, Mode_t mode) if (setresuid(ruid, euid, (Uid_t)-1)) #endif #endif + /* diag_listed_as: leaving effective %s failed */ Perl_croak(aTHX_ "leaving effective uid failed"); #ifdef HAS_SETREGID @@ -282,6 +285,7 @@ S_emulate_eaccess(pTHX_ const char* path, Mode_t mode) if (setresgid(rgid, egid, (Gid_t)-1)) #endif #endif + /* diag_listed_as: leaving effective %s failed */ Perl_croak(aTHX_ "leaving effective gid failed"); return res; @@ -355,23 +359,24 @@ PP(pp_glob) dVAR; OP *result; dSP; + GV * const gv = (PL_op->op_flags & OPf_SPECIAL) ? NULL : (GV *)POPs; + + PUTBACK; + /* make a copy of the pattern if it is gmagical, to ensure that magic * is called once and only once */ - if (SvGMAGICAL(TOPm1s)) TOPm1s = sv_2mortal(newSVsv(TOPm1s)); + if (SvGMAGICAL(TOPs)) TOPs = sv_2mortal(newSVsv(TOPs)); - tryAMAGICunTARGET(iter_amg, -1, (PL_op->op_flags & OPf_SPECIAL)); + tryAMAGICunTARGETlist(iter_amg, (PL_op->op_flags & OPf_SPECIAL)); if (PL_op->op_flags & OPf_SPECIAL) { /* call Perl-level glob function instead. Stack args are: - * MARK, wildcard, csh_glob context index + * MARK, wildcard * and following OPs should be: gv(CORE::GLOBAL::glob), entersub * */ return NORMAL; } - /* stack args are: wildcard, gv(_GEN_n) */ - if (PL_globhook) { - SETs(GvSV(TOPs)); PL_globhook(aTHX); return NORMAL; } @@ -383,7 +388,7 @@ PP(pp_glob) ENTER_with_name("glob"); #ifndef VMS - if (PL_tainting) { + if (TAINTING_get) { /* * The external globbing program may use things we can't control, * so for security reasons we must assume the worst. @@ -394,7 +399,7 @@ PP(pp_glob) #endif /* !VMS */ SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */ - PL_last_in_gv = MUTABLE_GV(*PL_stack_sp--); + PL_last_in_gv = gv; SAVESPTR(PL_rs); /* This is not permanent, either. */ PL_rs = newSVpvs_flags("\000", SVs_TEMP); @@ -434,20 +439,30 @@ PP(pp_warn) } else { exsv = TOPs; + if (SvGMAGICAL(exsv)) exsv = sv_mortalcopy(exsv); } if (SvROK(exsv) || (SvPV_const(exsv, len), len)) { /* well-formed exception supplied */ } - else if (SvROK(ERRSV)) { - exsv = ERRSV; - } - else if (SvPOK(ERRSV) && SvCUR(ERRSV)) { - exsv = sv_mortalcopy(ERRSV); - sv_catpvs(exsv, "\t...caught"); - } else { + SV * const errsv = ERRSV; + SvGETMAGIC(errsv); + if (SvROK(errsv)) { + if (SvGMAGICAL(errsv)) { + exsv = sv_newmortal(); + sv_setsv_nomg(exsv, errsv); + } + else exsv = errsv; + } + else if (SvPOKp(errsv) ? SvCUR(errsv) : SvNIOKp(errsv)) { + exsv = sv_newmortal(); + sv_setsv_nomg(exsv, errsv); + sv_catpvs(exsv, "\t...caught"); + } + else { exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP); + } } if (SvROK(exsv) && !PL_warnhook) Perl_warn(aTHX_ "%"SVf, SVfARG(exsv)); @@ -476,32 +491,36 @@ PP(pp_die) if (SvROK(exsv) || (SvPV_const(exsv, len), len)) { /* well-formed exception supplied */ } - else if (SvROK(ERRSV)) { - exsv = ERRSV; - if (sv_isobject(exsv)) { - HV * const stash = SvSTASH(SvRV(exsv)); - GV * const gv = gv_fetchmethod(stash, "PROPAGATE"); - if (gv) { - SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0)); - SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop))); - EXTEND(SP, 3); - PUSHMARK(SP); - PUSHs(exsv); - PUSHs(file); - PUSHs(line); - PUTBACK; - call_sv(MUTABLE_SV(GvCV(gv)), - G_SCALAR|G_EVAL|G_KEEPERR); - exsv = sv_mortalcopy(*PL_stack_sp--); + else { + SV * const errsv = ERRSV; + SvGETMAGIC(errsv); + if (SvROK(errsv)) { + exsv = errsv; + if (sv_isobject(exsv)) { + HV * const stash = SvSTASH(SvRV(exsv)); + GV * const gv = gv_fetchmethod(stash, "PROPAGATE"); + if (gv) { + SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0)); + SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop))); + EXTEND(SP, 3); + PUSHMARK(SP); + PUSHs(exsv); + PUSHs(file); + PUSHs(line); + PUTBACK; + call_sv(MUTABLE_SV(GvCV(gv)), + G_SCALAR|G_EVAL|G_KEEPERR); + exsv = sv_mortalcopy(*PL_stack_sp--); + } } } - } - else if (SvPOK(ERRSV) && SvCUR(ERRSV)) { - exsv = sv_mortalcopy(ERRSV); - sv_catpvs(exsv, "\t...propagated"); - } - else { - exsv = newSVpvs_flags("Died", SVs_TEMP); + else if (SvPOK(errsv) && SvCUR(errsv)) { + exsv = sv_mortalcopy(errsv); + sv_catpvs(exsv, "\t...propagated"); + } + else { + exsv = newSVpvs_flags("Died", SVs_TEMP); + } } return die_sv(exsv); } @@ -656,8 +675,8 @@ PP(pp_pipe_op) #ifdef HAS_PIPE dVAR; dSP; - register IO *rstio; - register IO *wstio; + IO *rstio; + IO *wstio; int fd[2]; GV * const wgv = MUTABLE_GV(POPs); @@ -848,11 +867,25 @@ PP(pp_tie) switch(SvTYPE(varsv)) { case SVt_PVHV: + { + HE *entry; methname = "TIEHASH"; + if (HvLAZYDEL(varsv) && (entry = HvEITER((HV *)varsv))) { + HvLAZYDEL_off(varsv); + hv_free_ent((HV *)varsv, entry); + } HvEITER_set(MUTABLE_HV(varsv), 0); break; + } case SVt_PVAV: methname = "TIEARRAY"; + if (!AvREAL(varsv)) { + if (!AvREIFY(varsv)) + Perl_croak(aTHX_ "Cannot tie unreifiable array"); + av_clear((AV *)varsv); + AvREIFY_off(varsv); + AvREAL_on(varsv); + } break; case SVt_PVGV: case SVt_PVLV: @@ -973,10 +1006,7 @@ PP(pp_tied) RETPUSHUNDEF; if ((mg = SvTIED_mg(sv, how))) { - SV *osv = SvTIED_obj(sv, mg); - if (osv == mg->mg_obj) - osv = sv_mortalcopy(osv); - PUSHs(osv); + PUSHs(SvTIED_obj(sv, mg)); RETURN; } RETPUSHUNDEF; @@ -1009,7 +1039,10 @@ PP(pp_dbmopen) if (SvIV(right)) mPUSHu(O_RDWR|O_CREAT); else + { mPUSHu(O_RDWR); + if (!SvOK(right)) right = &PL_sv_no; + } PUSHs(right); PUTBACK; call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR); @@ -1039,10 +1072,10 @@ PP(pp_sselect) { #ifdef HAS_SELECT dVAR; dSP; dTARGET; - register I32 i; - register I32 j; - register char *s; - register SV *sv; + I32 i; + I32 j; + char *s; + SV *sv; NV value; I32 maxlen = 0; I32 nfound; @@ -1066,17 +1099,18 @@ PP(pp_sselect) SP -= 4; for (i = 1; i <= 3; i++) { SV * const sv = SP[i]; + SvGETMAGIC(sv); if (!SvOK(sv)) continue; - if (SvREADONLY(sv)) { - if (SvIsCOW(sv)) + if (SvIsCOW(sv)) sv_force_normal_flags(sv, 0); - if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0)) - Perl_croak_no_modify(aTHX); - } + if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0)) + Perl_croak_no_modify(); if (!SvPOK(sv)) { - Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask"); - SvPV_force_nolen(sv); /* force string conversion */ + if (!SvPOKp(sv)) + Perl_ck_warner(aTHX_ packWARN(WARN_MISC), + "Non-string passed as bitmask"); + SvPV_force_nomg_nolen(sv); /* force string conversion */ } j = SvCUR(sv); if (maxlen < j) @@ -1213,7 +1247,8 @@ void Perl_setdefout(pTHX_ GV *gv) { dVAR; - SvREFCNT_inc_simple_void(gv); + PERL_ARGS_ASSERT_SETDEFOUT; + SvREFCNT_inc_simple_void_NN(gv); SvREFCNT_dec(PL_defoutgv); PL_defoutgv = gv; } @@ -1224,21 +1259,20 @@ PP(pp_select) HV *hv; GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL; GV * egv = GvEGVx(PL_defoutgv); + GV * const *gvp; if (!egv) egv = PL_defoutgv; hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL; - if (! hv) - XPUSHs(&PL_sv_undef); - else { - GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE); - if (gvp && *gvp == egv) { + gvp = hv && HvENAME(hv) + ? (GV**)hv_fetch(hv, GvNAME(egv), HEK_UTF8(GvNAME_HEK(egv)) ? -GvNAMELEN(egv) : GvNAMELEN(egv), FALSE) + : NULL; + if (gvp && *gvp == egv) { gv_efullname4(TARG, PL_defoutgv, NULL, TRUE); XPUSHTARG; - } - else { + } + else { mXPUSHs(newRV(MUTABLE_SV(egv))); - } } if (newdefout) { @@ -1299,7 +1333,7 @@ STATIC OP * S_doform(pTHX_ CV *cv, GV *gv, OP *retop) { dVAR; - register PERL_CONTEXT *cx; + PERL_CONTEXT *cx; const I32 gimme = GIMME_V; PERL_ARGS_ASSERT_DOFORM; @@ -1312,8 +1346,12 @@ S_doform(pTHX_ CV *cv, GV *gv, OP *retop) PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp); PUSHFORMAT(cx, retop); + if (CvDEPTH(cv) >= 2) { + PERL_STACK_OVERFLOW_CHECK(); + pad_push(CvPADLIST(cv), CvDEPTH(cv)); + } SAVECOMPPAD(); - PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); + PAD_SET_CUR_NOSAVE(CvPADLIST(cv), CvDEPTH(cv)); setdefout(gv); /* locally select filehandle so $% et al work */ return CvSTART(cv); @@ -1323,8 +1361,8 @@ PP(pp_enterwrite) { dVAR; dSP; - register GV *gv; - register IO *io; + GV *gv; + IO *io; GV *fgv; CV *cv = NULL; SV *tmpsv = NULL; @@ -1347,33 +1385,28 @@ PP(pp_enterwrite) else fgv = gv; - if (!fgv) - goto not_a_format_reference; + assert(fgv); cv = GvFORM(fgv); if (!cv) { tmpsv = sv_newmortal(); gv_efullname4(tmpsv, fgv, NULL, FALSE); - if (SvPOK(tmpsv) && *SvPV_nolen_const(tmpsv)) - DIE(aTHX_ "Undefined format \"%"SVf"\" called", SVfARG(tmpsv)); - - not_a_format_reference: - DIE(aTHX_ "Not a format reference"); + DIE(aTHX_ "Undefined format \"%"SVf"\" called", SVfARG(tmpsv)); } IoFLAGS(io) &= ~IOf_DIDTOP; - return doform(cv,gv,PL_op->op_next); + RETURNOP(doform(cv,gv,PL_op->op_next)); } PP(pp_leavewrite) { dVAR; dSP; GV * const gv = cxstack[cxstack_ix].blk_format.gv; - register IO * const io = GvIOp(gv); + IO * const io = GvIOp(gv); PerlIO *ofp; PerlIO *fp; SV **newsp; I32 gimme; - register PERL_CONTEXT *cx; + PERL_CONTEXT *cx; OP *retop; if (!io || !(ofp = IoOFP(io))) @@ -1431,22 +1464,18 @@ PP(pp_leavewrite) } } if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0) - do_print(PL_formfeed, ofp); + do_print(GvSV(gv_fetchpvs("\f", GV_ADD, SVt_PV)), ofp); IoLINES_LEFT(io) = IoPAGE_LEN(io); IoPAGE(io)++; PL_formtarget = PL_toptarget; IoFLAGS(io) |= IOf_DIDTOP; fgv = IoTOP_GV(io); - if (!fgv) - DIE(aTHX_ "bad top format reference"); + assert(fgv); /* IoTOP_GV(io) should have been set above */ cv = GvFORM(fgv); if (!cv) { SV * const sv = sv_newmortal(); gv_efullname4(sv, fgv, NULL, FALSE); - if (SvPOK(sv) && *SvPV_nolen_const(sv)) - DIE(aTHX_ "Undefined top format \"%"SVf"\" called", SVfARG(sv)); - else - DIE(aTHX_ "Undefined top format called"); + DIE(aTHX_ "Undefined top format \"%"SVf"\" called", SVfARG(sv)); } return doform(cv, gv, PL_op); } @@ -1455,11 +1484,11 @@ PP(pp_leavewrite) POPBLOCK(cx,PL_curpm); POPFORMAT(cx); retop = cx->blk_sub.retop; + SP = newsp; /* ignore retval of formline */ LEAVE; - fp = IoOFP(io); - if (!fp) { - if (IoIFP(io)) + if (!io || !(fp = IoOFP(io))) { + if (io && IoIFP(io)) report_wrongway_fh(gv, '<'); else report_evil_fh(gv); @@ -1480,24 +1509,23 @@ PP(pp_leavewrite) PUSHs(&PL_sv_yes); } } - /* bad_ofp: */ PL_formtarget = PL_bodytarget; - PUTBACK; - PERL_UNUSED_VAR(newsp); PERL_UNUSED_VAR(gimme); - return retop; + RETURNOP(retop); } PP(pp_prtf) { dVAR; dSP; dMARK; dORIGMARK; PerlIO *fp; - SV *sv; GV * const gv = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv; IO *const io = GvIO(gv); + /* Treat empty list as "" */ + if (MARK == SP) XPUSHs(&PL_sv_no); + if (io) { const MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); if (mg) { @@ -1514,7 +1542,6 @@ PP(pp_prtf) } } - sv = newSV(0); if (!io) { report_evil_fh(gv); SETERRNO(EBADF,RMS_IFI); @@ -1529,6 +1556,7 @@ PP(pp_prtf) goto just_say_no; } else { + SV *sv = sv_newmortal(); do_sprintf(sv, SP - MARK, MARK + 1); if (!do_print(sv, fp)) goto just_say_no; @@ -1537,13 +1565,11 @@ PP(pp_prtf) if (PerlIO_flush(fp) == EOF) goto just_say_no; } - SvREFCNT_dec(sv); SP = ORIGMARK; PUSHs(&PL_sv_yes); RETURN; just_say_no: - SvREFCNT_dec(sv); SP = ORIGMARK; PUSHs(&PL_sv_undef); RETURN; @@ -1610,6 +1636,8 @@ PP(pp_sysread) if (! SvOK(bufsv)) sv_setpvs(bufsv, ""); length = SvIVx(*++MARK); + if (length < 0) + DIE(aTHX_ "Negative length"); SETERRNO(0,0); if (MARK < SP) offset = SvIVx(*++MARK); @@ -1631,19 +1659,20 @@ PP(pp_sysread) buffer = SvPV_force(bufsv, blen); buffer_utf8 = !IN_BYTES && SvUTF8(bufsv); } - if (length < 0) - DIE(aTHX_ "Negative length"); - wanted = length; + if (DO_UTF8(bufsv)) { + blen = sv_len_utf8_nomg(bufsv); + } charstart = TRUE; charskip = 0; skip = 0; + wanted = length; #ifdef HAS_SOCKET if (PL_op->op_type == OP_RECV) { Sock_size_t bufsize; char namebuf[MAXPATHLEN]; -#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__) +#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__) bufsize = sizeof (struct sockaddr_in); #else bufsize = sizeof namebuf; @@ -1661,10 +1690,6 @@ PP(pp_sysread) /* MSG_TRUNC can give oversized count; quietly lose it */ if (count > length) count = length; -#ifdef EPOC - /* Bogus return without padding */ - bufsize = sizeof (struct sockaddr_in); -#endif SvCUR_set(bufsv, count); *SvEND(bufsv) = '\0'; (void)SvPOK_only(bufsv); @@ -1680,10 +1705,6 @@ PP(pp_sysread) RETURN; } #endif - if (DO_UTF8(bufsv)) { - /* offset adjust in characters not bytes */ - blen = sv_len_utf8(bufsv); - } if (offset < 0) { if (-offset > (SSize_t)blen) DIE(aTHX_ "Offset outside string"); @@ -1691,7 +1712,7 @@ PP(pp_sysread) } if (DO_UTF8(bufsv)) { /* convert offset-as-chars to offset-as-bytes */ - if (offset >= (int)blen) + if (offset >= (SSize_t)blen) offset += SvCUR(bufsv) - blen; else offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer; @@ -1916,15 +1937,9 @@ PP(pp_syswrite) blen_chars = orig_blen_bytes; } else { /* The SV really is UTF-8. */ - if (SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) { - /* Don't call sv_len_utf8 again because it will call magic - or overloading a second time, and we might get back a - different result. */ - blen_chars = utf8_length((U8*)buffer, (U8*)buffer + blen); - } else { - /* It's safe, and it may well be cached. */ - blen_chars = sv_len_utf8(bufsv); - } + /* Don't call sv_len_utf8 on a magical or overloaded + scalar, as we might get back a different result. */ + blen_chars = sv_or_pv_len_utf8(bufsv, buffer, blen); } } else { blen_chars = blen; @@ -2191,9 +2206,9 @@ PP(pp_truncate) GV *tmpgv; IO *io; - if ((tmpgv = PL_op->op_flags & OPf_SPECIAL - ? gv_fetchsv(sv, 0, SVt_PVIO) - : MAYBE_DEREF_GV(sv) )) { + if (PL_op->op_flags & OPf_SPECIAL + ? (tmpgv = gv_fetchsv(sv, 0, SVt_PVIO), 1) + : !!(tmpgv = MAYBE_DEREF_GV(sv)) ) { io = GvIO(tmpgv); if (!io) result = 0; @@ -2328,7 +2343,7 @@ PP(pp_flock) dVAR; dSP; dTARGET; I32 value; const int argtype = POPi; - GV * const gv = (MAXARG == 0) ? PL_last_in_gv : MUTABLE_GV(POPs); + GV * const gv = MUTABLE_GV(POPs); IO *const io = GvIO(gv); PerlIO *const fp = io ? IoIFP(io) : NULL; @@ -2360,7 +2375,7 @@ PP(pp_socket) const int type = POPi; const int domain = POPi; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = gv ? GvIOn(gv) : NULL; + IO * const io = gv ? GvIOn(gv) : NULL; int fd; if (!io) { @@ -2391,10 +2406,6 @@ PP(pp_socket) fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */ #endif -#ifdef EPOC - setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */ -#endif - RETPUSHYES; } #endif @@ -2408,8 +2419,8 @@ PP(pp_sockpair) const int domain = POPi; GV * const gv2 = MUTABLE_GV(POPs); GV * const gv1 = MUTABLE_GV(POPs); - register IO * const io1 = gv1 ? GvIOn(gv1) : NULL; - register IO * const io2 = gv2 ? GvIOn(gv2) : NULL; + IO * const io1 = gv1 ? GvIOn(gv1) : NULL; + IO * const io2 = gv2 ? GvIOn(gv2) : NULL; int fd[2]; if (!io1) @@ -2463,7 +2474,7 @@ PP(pp_bind) /* OK, so on what platform does bind modify addr? */ const char *addr; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); STRLEN len; const int op_type = PL_op->op_type; @@ -2491,7 +2502,7 @@ PP(pp_listen) dVAR; dSP; const int backlog = POPi; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = gv ? GvIOn(gv) : NULL; + IO * const io = gv ? GvIOn(gv) : NULL; if (!io || !IoIFP(io)) goto nuts; @@ -2510,10 +2521,10 @@ nuts: PP(pp_accept) { dVAR; dSP; dTARGET; - register IO *nstio; - register IO *gstio; + IO *nstio; + IO *gstio; char namebuf[MAXPATHLEN]; -#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__) +#if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(__QNXNTO__) Sock_size_t len = sizeof (struct sockaddr_in); #else Sock_size_t len = sizeof namebuf; @@ -2561,10 +2572,6 @@ PP(pp_accept) fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */ #endif -#ifdef EPOC - len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */ - setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */ -#endif #ifdef __SCO_VERSION__ len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */ #endif @@ -2586,7 +2593,7 @@ PP(pp_shutdown) dVAR; dSP; dTARGET; const int how = POPi; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); if (!io || !IoIFP(io)) goto nuts; @@ -2608,7 +2615,7 @@ PP(pp_ssockopt) const unsigned int optname = (unsigned int) POPi; const unsigned int lvl = (unsigned int) POPi; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); int fd; Sock_size_t len; @@ -2677,7 +2684,7 @@ PP(pp_getpeername) dVAR; dSP; const int optype = PL_op->op_type; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); Sock_size_t len; SV *sv; int fd; @@ -2739,7 +2746,7 @@ PP(pp_stat) dVAR; dSP; GV *gv = NULL; - IO *io; + IO *io = NULL; I32 gimme; I32 max = 13; SV* sv; @@ -2750,7 +2757,9 @@ PP(pp_stat) if (gv != PL_defgv) { do_fstat_warning_check: Perl_ck_warner(aTHX_ packWARN(WARN_IO), - "lstat() on filehandle %"SVf, SVfARG(gv + "lstat() on filehandle%s%"SVf, + gv ? " " : "", + SVfARG(gv ? sv_2mortal(newSVhek(GvENAME_HEK(gv))) : &PL_sv_no)); } else if (PL_laststype != OP_LSTAT) @@ -2759,28 +2768,33 @@ PP(pp_stat) } if (gv != PL_defgv) { + bool havefp; + do_fstat_have_io: + havefp = FALSE; PL_laststype = OP_STAT; - PL_statgv = gv; + PL_statgv = gv ? gv : (GV *)io; sv_setpvs(PL_statname, ""); if(gv) { io = GvIO(gv); - do_fstat_have_io: - if (io) { + } + if (io) { if (IoIFP(io)) { PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache); + havefp = TRUE; } else if (IoDIRP(io)) { PL_laststatval = PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache); + havefp = TRUE; } else { PL_laststatval = -1; } - } } + else PL_laststatval = -1; + if (PL_laststatval < 0 && !havefp) report_evil_fh(gv); } if (PL_laststatval < 0) { - report_evil_fh(gv); max = 0; } } @@ -2792,6 +2806,7 @@ PP(pp_stat) goto do_fstat_have_io; } + SvTAINTED_off(PL_statname); /* previous tainting irrelevant */ sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv)); PL_statgv = NULL; PL_laststype = PL_op->op_type; @@ -2827,24 +2842,10 @@ PP(pp_stat) #endif mPUSHu(PL_statcache.st_mode); mPUSHu(PL_statcache.st_nlink); -#if Uid_t_size > IVSIZE - mPUSHn(PL_statcache.st_uid); -#else -# if Uid_t_sign <= 0 - mPUSHi(PL_statcache.st_uid); -# else - mPUSHu(PL_statcache.st_uid); -# endif -#endif -#if Gid_t_size > IVSIZE - mPUSHn(PL_statcache.st_gid); -#else -# if Gid_t_sign <= 0 - mPUSHi(PL_statcache.st_gid); -# else - mPUSHu(PL_statcache.st_gid); -# endif -#endif + + sv_setuid(PUSHmortal, PL_statcache.st_uid); + sv_setgid(PUSHmortal, PL_statcache.st_gid); + #ifdef USE_STAT_RDEV mPUSHi(PL_statcache.st_rdev); #else @@ -2875,23 +2876,69 @@ PP(pp_stat) RETURN; } +/* All filetest ops avoid manipulating the perl stack pointer in their main + bodies (since commit d2c4d2d1e22d3125), and return using either + S_ft_return_false() or S_ft_return_true(). These two helper functions are + the only two which manipulate the perl stack. To ensure that no stack + manipulation macros are used, the filetest ops avoid defining a local copy + of the stack pointer with dSP. */ + +/* If the next filetest is stacked up with this one + (PL_op->op_private & OPpFT_STACKING), we leave + the original argument on the stack for success, + and skip the stacked operators on failure. + The next few macros/functions take care of this. +*/ + +static OP * +S_ft_return_false(pTHX_ SV *ret) { + OP *next = NORMAL; + dSP; + + if (PL_op->op_flags & OPf_REF) XPUSHs(ret); + else SETs(ret); + PUTBACK; + + if (PL_op->op_private & OPpFT_STACKING) { + while (OP_IS_FILETEST(next->op_type) + && next->op_private & OPpFT_STACKED) + next = next->op_next; + } + return next; +} + +PERL_STATIC_INLINE OP * +S_ft_return_true(pTHX_ SV *ret) { + dSP; + if (PL_op->op_flags & OPf_REF) + XPUSHs(PL_op->op_private & OPpFT_STACKING ? (SV *)cGVOP_gv : (ret)); + else if (!(PL_op->op_private & OPpFT_STACKING)) + SETs(ret); + PUTBACK; + return NORMAL; +} + +#define FT_RETURNNO return S_ft_return_false(aTHX_ &PL_sv_no) +#define FT_RETURNUNDEF return S_ft_return_false(aTHX_ &PL_sv_undef) +#define FT_RETURNYES return S_ft_return_true(aTHX_ &PL_sv_yes) + #define tryAMAGICftest_MG(chr) STMT_START { \ - if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \ - && PL_op->op_flags & OPf_KIDS \ - && S_try_amagic_ftest(aTHX_ chr)) \ - return NORMAL; \ + if ( (SvFLAGS(*PL_stack_sp) & (SVf_ROK|SVs_GMG)) \ + && PL_op->op_flags & OPf_KIDS) { \ + OP *next = S_try_amagic_ftest(aTHX_ chr); \ + if (next) return next; \ + } \ } STMT_END -STATIC bool +STATIC OP * S_try_amagic_ftest(pTHX_ char chr) { dVAR; - dSP; - SV* const arg = TOPs; + SV *const arg = *PL_stack_sp; assert(chr != '?'); - SvGETMAGIC(arg); + if (!(PL_op->op_private & OPpFT_STACKING)) SvGETMAGIC(arg); - if (SvAMAGIC(TOPs)) + if (SvAMAGIC(arg)) { const char tmpchr = chr; SV * const tmpsv = amagic_call(arg, @@ -2899,33 +2946,15 @@ S_try_amagic_ftest(pTHX_ char chr) { ftest_amg, AMGf_unary); if (!tmpsv) - return FALSE; - - SPAGAIN; - - if (PL_op->op_private & OPpFT_STACKING) { - if (SvTRUE(tmpsv)) - /* leave the object alone */ - return TRUE; - } + return NULL; - SETs(tmpsv); - PUTBACK; - return TRUE; + return SvTRUE(tmpsv) + ? S_ft_return_true(aTHX_ tmpsv) : S_ft_return_false(aTHX_ tmpsv); } - return FALSE; + return NULL; } -/* This macro is used by the stacked filetest operators : - * if the previous filetest failed, short-circuit and pass its value. - * Else, discard it from the stack and continue. --rgs - */ -#define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \ - if (!SvTRUE(TOPs)) { RETURN; } \ - else { (void)POPs; PUTBACK; } \ - } - PP(pp_ftrread) { dVAR; @@ -2949,7 +2978,6 @@ PP(pp_ftrread) bool effective = FALSE; char opchar = '?'; - dSP; switch (PL_op->op_type) { case OP_FTRREAD: opchar = 'R'; break; @@ -2961,8 +2989,6 @@ PP(pp_ftrread) } tryAMAGICftest_MG(opchar); - STACKED_FTEST_CHECK; - switch (PL_op->op_type) { case OP_FTRREAD: #if !(defined(HAS_ACCESS) && defined(R_OK)) @@ -3015,7 +3041,7 @@ PP(pp_ftrread) if (use_access) { #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS) - const char *name = POPpx; + const char *name = SvPV_nolen(*PL_stack_sp); if (effective) { # ifdef PERL_EFF_ACCESS result = PERL_EFF_ACCESS(name, access_mode); @@ -3032,20 +3058,19 @@ PP(pp_ftrread) # endif } if (result == 0) - RETPUSHYES; + FT_RETURNYES; if (result < 0) - RETPUSHUNDEF; - RETPUSHNO; + FT_RETURNUNDEF; + FT_RETURNNO; #endif } result = my_stat_flags(0); - SPAGAIN; if (result < 0) - RETPUSHUNDEF; + FT_RETURNUNDEF; if (cando(stat_mode, effective, &PL_statcache)) - RETPUSHYES; - RETPUSHNO; + FT_RETURNYES; + FT_RETURNNO; } PP(pp_ftis) @@ -3054,7 +3079,6 @@ PP(pp_ftis) I32 result; const int op_type = PL_op->op_type; char opchar = '?'; - dSP; switch (op_type) { case OP_FTIS: opchar = 'e'; break; @@ -3065,14 +3089,11 @@ PP(pp_ftis) } tryAMAGICftest_MG(opchar); - STACKED_FTEST_CHECK; - result = my_stat_flags(0); - SPAGAIN; if (result < 0) - RETPUSHUNDEF; + FT_RETURNUNDEF; if (op_type == OP_FTIS) - RETPUSHYES; + FT_RETURNYES; { /* You can't dTARGET inside OP_FTIS, because you'll get "panic: pad_sv po" - the op is not flagged to have a target. */ @@ -3080,23 +3101,28 @@ PP(pp_ftis) switch (op_type) { case OP_FTSIZE: #if Off_t_size > IVSIZE - PUSHn(PL_statcache.st_size); + sv_setnv(TARG, (NV)PL_statcache.st_size); #else - PUSHi(PL_statcache.st_size); + sv_setiv(TARG, (IV)PL_statcache.st_size); #endif break; case OP_FTMTIME: - PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 ); + sv_setnv(TARG, + ((NV)PL_basetime - PL_statcache.st_mtime) / 86400.0 ); break; case OP_FTATIME: - PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 ); + sv_setnv(TARG, + ((NV)PL_basetime - PL_statcache.st_atime) / 86400.0 ); break; case OP_FTCTIME: - PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 ); + sv_setnv(TARG, + ((NV)PL_basetime - PL_statcache.st_ctime) / 86400.0 ); break; } + SvSETMAGIC(TARG); + return SvTRUE_nomg(TARG) + ? S_ft_return_true(aTHX_ TARG) : S_ft_return_false(aTHX_ TARG); } - RETURN; } PP(pp_ftrowned) @@ -3104,7 +3130,6 @@ PP(pp_ftrowned) dVAR; I32 result; char opchar = '?'; - dSP; switch (PL_op->op_type) { case OP_FTROWNED: opchar = 'O'; break; @@ -3122,207 +3147,185 @@ PP(pp_ftrowned) } tryAMAGICftest_MG(opchar); - STACKED_FTEST_CHECK; - /* I believe that all these three are likely to be defined on most every system these days. */ #ifndef S_ISUID if(PL_op->op_type == OP_FTSUID) { - if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0) - (void) POPs; - RETPUSHNO; + FT_RETURNNO; } #endif #ifndef S_ISGID if(PL_op->op_type == OP_FTSGID) { - if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0) - (void) POPs; - RETPUSHNO; + FT_RETURNNO; } #endif #ifndef S_ISVTX if(PL_op->op_type == OP_FTSVTX) { - if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0) - (void) POPs; - RETPUSHNO; + FT_RETURNNO; } #endif result = my_stat_flags(0); - SPAGAIN; if (result < 0) - RETPUSHUNDEF; + FT_RETURNUNDEF; switch (PL_op->op_type) { case OP_FTROWNED: - if (PL_statcache.st_uid == PL_uid) - RETPUSHYES; + if (PL_statcache.st_uid == PerlProc_getuid()) + FT_RETURNYES; break; case OP_FTEOWNED: - if (PL_statcache.st_uid == PL_euid) - RETPUSHYES; + if (PL_statcache.st_uid == PerlProc_geteuid()) + FT_RETURNYES; break; case OP_FTZERO: if (PL_statcache.st_size == 0) - RETPUSHYES; + FT_RETURNYES; break; case OP_FTSOCK: if (S_ISSOCK(PL_statcache.st_mode)) - RETPUSHYES; + FT_RETURNYES; break; case OP_FTCHR: if (S_ISCHR(PL_statcache.st_mode)) - RETPUSHYES; + FT_RETURNYES; break; case OP_FTBLK: if (S_ISBLK(PL_statcache.st_mode)) - RETPUSHYES; + FT_RETURNYES; break; case OP_FTFILE: if (S_ISREG(PL_statcache.st_mode)) - RETPUSHYES; + FT_RETURNYES; break; case OP_FTDIR: if (S_ISDIR(PL_statcache.st_mode)) - RETPUSHYES; + FT_RETURNYES; break; case OP_FTPIPE: if (S_ISFIFO(PL_statcache.st_mode)) - RETPUSHYES; + FT_RETURNYES; break; #ifdef S_ISUID case OP_FTSUID: if (PL_statcache.st_mode & S_ISUID) - RETPUSHYES; + FT_RETURNYES; break; #endif #ifdef S_ISGID case OP_FTSGID: if (PL_statcache.st_mode & S_ISGID) - RETPUSHYES; + FT_RETURNYES; break; #endif #ifdef S_ISVTX case OP_FTSVTX: if (PL_statcache.st_mode & S_ISVTX) - RETPUSHYES; + FT_RETURNYES; break; #endif } - RETPUSHNO; + FT_RETURNNO; } PP(pp_ftlink) { dVAR; - dSP; I32 result; tryAMAGICftest_MG('l'); - STACKED_FTEST_CHECK; result = my_lstat_flags(0); - SPAGAIN; if (result < 0) - RETPUSHUNDEF; + FT_RETURNUNDEF; if (S_ISLNK(PL_statcache.st_mode)) - RETPUSHYES; - RETPUSHNO; + FT_RETURNYES; + FT_RETURNNO; } PP(pp_fttty) { dVAR; - dSP; int fd; GV *gv; - SV *tmpsv = NULL; char *name = NULL; STRLEN namelen; tryAMAGICftest_MG('t'); - STACKED_FTEST_CHECK; - if (PL_op->op_flags & OPf_REF) gv = cGVOP_gv; - else if (!(gv = MAYBE_DEREF_GV_nomg(TOPs))) { - tmpsv = POPs; + else { + SV *tmpsv = *PL_stack_sp; + if (!(gv = MAYBE_DEREF_GV_nomg(tmpsv))) { name = SvPV_nomg(tmpsv, namelen); gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO); + } } if (GvIO(gv) && IoIFP(GvIOp(gv))) fd = PerlIO_fileno(IoIFP(GvIOp(gv))); - else if (tmpsv && SvOK(tmpsv)) { - if (isDIGIT(*name)) + else if (name && isDIGIT(*name)) fd = atoi(name); - else - RETPUSHUNDEF; - } else - RETPUSHUNDEF; + FT_RETURNUNDEF; if (PerlLIO_isatty(fd)) - RETPUSHYES; - RETPUSHNO; + FT_RETURNYES; + FT_RETURNNO; } -#if defined(atarist) /* this will work with atariST. Configure will - make guesses for other systems. */ -# define FILE_base(f) ((f)->_base) -# define FILE_ptr(f) ((f)->_ptr) -# define FILE_cnt(f) ((f)->_cnt) -# define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base)) -#endif - PP(pp_fttext) { dVAR; - dSP; I32 i; I32 len; I32 odd = 0; STDCHAR tbuf[512]; - register STDCHAR *s; - register IO *io; - register SV *sv; + STDCHAR *s; + IO *io; + SV *sv = NULL; GV *gv; PerlIO *fp; tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B'); - STACKED_FTEST_CHECK; - if (PL_op->op_flags & OPf_REF) gv = cGVOP_gv; - else gv = MAYBE_DEREF_GV_nomg(TOPs); + else if ((PL_op->op_private & (OPpFT_STACKED|OPpFT_AFTER_t)) + == OPpFT_STACKED) + gv = PL_defgv; + else { + sv = *PL_stack_sp; + gv = MAYBE_DEREF_GV_nomg(sv); + } if (gv) { - EXTEND(SP, 1); if (gv == PL_defgv) { if (PL_statgv) - io = GvIO(PL_statgv); + io = SvTYPE(PL_statgv) == SVt_PVIO + ? (IO *)PL_statgv + : GvIO(PL_statgv); else { - sv = PL_statname; goto really_filename; } } else { PL_statgv = gv; - PL_laststatval = -1; sv_setpvs(PL_statname, ""); io = GvIO(PL_statgv); } + PL_laststatval = -1; + PL_laststype = OP_STAT; if (io && IoIFP(io)) { if (! PerlIO_has_base(IoIFP(io))) DIE(aTHX_ "-T and -B not implemented on filehandles"); PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache); if (PL_laststatval < 0) - RETPUSHUNDEF; + FT_RETURNUNDEF; if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */ if (PL_op->op_type == OP_FTTEXT) - RETPUSHNO; + FT_RETURNNO; else - RETPUSHYES; + FT_RETURNYES; } if (PerlIO_get_cnt(IoIFP(io)) <= 0) { i = PerlIO_getc(IoIFP(io)); @@ -3330,7 +3333,7 @@ PP(pp_fttext) (void)PerlIO_ungetc(IoIFP(io),i); } if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */ - RETPUSHYES; + FT_RETURNYES; len = PerlIO_get_bufsiz(IoIFP(io)); s = (STDCHAR *) PerlIO_get_base(IoIFP(io)); /* sfio can have large buffers - limit to 512 */ @@ -3338,35 +3341,39 @@ PP(pp_fttext) len = 512; } else { - report_evil_fh(cGVOP_gv); SETERRNO(EBADF,RMS_IFI); - RETPUSHUNDEF; + report_evil_fh(gv); + SETERRNO(EBADF,RMS_IFI); + FT_RETURNUNDEF; } } else { - sv = POPs; + sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv)); really_filename: PL_statgv = NULL; - PL_laststype = OP_STAT; - sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv)); if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) { + if (!gv) { + PL_laststatval = -1; + PL_laststype = OP_STAT; + } if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n')) Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); - RETPUSHUNDEF; + FT_RETURNUNDEF; } + PL_laststype = OP_STAT; PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache); if (PL_laststatval < 0) { (void)PerlIO_close(fp); - RETPUSHUNDEF; + FT_RETURNUNDEF; } PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL); len = PerlIO_read(fp, tbuf, sizeof(tbuf)); (void)PerlIO_close(fp); if (len <= 0) { if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT) - RETPUSHNO; /* special case NFS directories */ - RETPUSHYES; /* null file is anything */ + FT_RETURNNO; /* special case NFS directories */ + FT_RETURNYES; /* null file is anything */ } s = tbuf; } @@ -3420,9 +3427,9 @@ PP(pp_fttext) } if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */ - RETPUSHNO; + FT_RETURNNO; else - RETPUSHYES; + FT_RETURNYES; } /* File calls. */ @@ -3536,7 +3543,7 @@ PP(pp_rename) if (same_dirent(tmps2, tmps)) /* can always rename to same name */ anum = 1; else { - if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode)) + if (PerlProc_geteuid() || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode)) (void)UNLINK(tmps2); if (!(anum = link(tmps, tmps2))) anum = UNLINK(tmps); @@ -3786,7 +3793,7 @@ PP(pp_open_dir) dVAR; dSP; const char * const dirname = POPpconstx; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); if (!io) goto nope; @@ -3824,8 +3831,8 @@ PP(pp_readdir) SV *sv; const I32 gimme = GIMME; GV * const gv = MUTABLE_GV(POPs); - register const Direntry_t *dp; - register IO * const io = GvIOn(gv); + const Direntry_t *dp; + IO * const io = GvIOn(gv); if (!io || !IoDIRP(io)) { Perl_ck_warner(aTHX_ packWARN(WARN_IO), @@ -3877,7 +3884,7 @@ PP(pp_telldir) long telldir (DIR *); # endif GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); if (!io || !IoDIRP(io)) { Perl_ck_warner(aTHX_ packWARN(WARN_IO), @@ -3903,7 +3910,7 @@ PP(pp_seekdir) dVAR; dSP; const long along = POPl; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); if (!io || !IoDIRP(io)) { Perl_ck_warner(aTHX_ packWARN(WARN_IO), @@ -3928,7 +3935,7 @@ PP(pp_rewinddir) #if defined(HAS_REWINDDIR) || defined(rewinddir) dVAR; dSP; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); if (!io || !IoDIRP(io)) { Perl_ck_warner(aTHX_ packWARN(WARN_IO), @@ -3952,7 +3959,7 @@ PP(pp_closedir) #if defined(Direntry_t) && defined(HAS_READDIR) dVAR; dSP; GV * const gv = MUTABLE_GV(POPs); - register IO * const io = GvIOn(gv); + IO * const io = GvIOn(gv); if (!io || !IoDIRP(io)) { Perl_ck_warner(aTHX_ packWARN(WARN_IO), @@ -3987,16 +3994,34 @@ PP(pp_fork) #ifdef HAS_FORK dVAR; dSP; dTARGET; Pid_t childpid; +#if defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO) + sigset_t oldmask, newmask; +#endif EXTEND(SP, 1); PERL_FLUSHALL_FOR_CHILD; +#if defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO) + sigfillset(&newmask); + sigprocmask(SIG_SETMASK, &newmask, &oldmask); +#endif childpid = PerlProc_fork(); + if (childpid == 0) { + int sig; + PL_sig_pending = 0; + if (PL_psig_pend) + for (sig = 1; sig < SIG_SIZE; sig++) + PL_psig_pend[sig] = 0; + } +#if defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO) + { + dSAVE_ERRNO; + sigprocmask(SIG_SETMASK, &oldmask, NULL); + RESTORE_ERRNO; + } +#endif if (childpid < 0) - RETSETUNDEF; + RETPUSHUNDEF; if (!childpid) { -#ifdef THREADS_HAVE_PIDS - PL_ppid = (IV)getppid(); -#endif #ifdef PERL_USES_PL_PIDSTATUS hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */ #endif @@ -4012,7 +4037,7 @@ PP(pp_fork) PERL_FLUSHALL_FOR_CHILD; childpid = PerlProc_fork(); if (childpid == -1) - RETSETUNDEF; + RETPUSHUNDEF; PUSHi(childpid); RETURN; # else @@ -4090,11 +4115,11 @@ PP(pp_system) I32 value; int result; - if (PL_tainting) { + if (TAINTING_get) { TAINT_ENV(); while (++MARK <= SP) { (void)SvPV_nolen_const(*MARK); /* stringify for taint check */ - if (PL_tainted) + if (TAINT_get) break; } MARK = ORIGMARK; @@ -4106,9 +4131,17 @@ PP(pp_system) Pid_t childpid; int pp[2]; I32 did_pipes = 0; +#if (defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO)) + sigset_t newset, oldset; +#endif if (PerlProc_pipe(pp) >= 0) did_pipes = 1; +#if (defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO)) + sigemptyset(&newset); + sigaddset(&newset, SIGCHLD); + sigprocmask(SIG_BLOCK, &newset, &oldset); +#endif while ((childpid = PerlProc_fork()) == -1) { if (errno != EAGAIN) { value = -1; @@ -4118,6 +4151,9 @@ PP(pp_system) PerlLIO_close(pp[0]); PerlLIO_close(pp[1]); } +#if (defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO)) + sigprocmask(SIG_SETMASK, &oldset, NULL); +#endif RETURN; } sleep(5); @@ -4136,6 +4172,9 @@ PP(pp_system) result = wait4pid(childpid, &status, 0); } while (result == -1 && errno == EINTR); #ifndef PERL_MICRO +#ifdef HAS_SIGPROCMASK + sigprocmask(SIG_SETMASK, &oldset, NULL); +#endif (void)rsignal_restore(SIGINT, &ihand); (void)rsignal_restore(SIGQUIT, &qhand); #endif @@ -4158,7 +4197,7 @@ PP(pp_system) PerlLIO_close(pp[0]); if (n) { /* Error */ if (n != sizeof(int)) - DIE(aTHX_ "panic: kid popen errno read"); + DIE(aTHX_ "panic: kid popen errno read, n=%u", n); errno = errkid; /* Propagate errno from kid */ STATUS_NATIVE_CHILD_SET(-1); } @@ -4166,6 +4205,9 @@ PP(pp_system) XPUSHi(STATUS_CURRENT); RETURN; } +#if (defined(HAS_SIGPROCMASK) && !defined(PERL_MICRO)) + sigprocmask(SIG_SETMASK, &oldset, NULL); +#endif if (did_pipes) { PerlLIO_close(pp[0]); #if defined(HAS_FCNTL) && defined(F_SETFD) @@ -4220,11 +4262,11 @@ PP(pp_exec) dVAR; dSP; dMARK; dORIGMARK; dTARGET; I32 value; - if (PL_tainting) { + if (TAINTING_get) { TAINT_ENV(); while (++MARK <= SP) { (void)SvPV_nolen_const(*MARK); /* stringify for taint check */ - if (PL_tainted) + if (TAINT_get) break; } MARK = ORIGMARK; @@ -4239,25 +4281,13 @@ PP(pp_exec) #ifdef VMS value = (I32)vms_do_aexec(NULL, MARK, SP); #else -# ifdef __OPEN_VM - { - (void ) do_aspawn(NULL, MARK, SP); - value = 0; - } -# else value = (I32)do_aexec(NULL, MARK, SP); -# endif #endif else { #ifdef VMS value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP))); #else -# ifdef __OPEN_VM - (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP))); - value = 0; -# else value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP))); -# endif #endif } @@ -4270,14 +4300,7 @@ PP(pp_getppid) { #ifdef HAS_GETPPID dVAR; dSP; dTARGET; -# ifdef THREADS_HAVE_PIDS - if (PL_ppid != 1 && getppid() == 1) - /* maybe the parent process has died. Refresh ppid cache */ - PL_ppid = 1; - XPUSHi( PL_ppid ); -# else XPUSHi( getppid() ); -# endif RETURN; #else DIE(aTHX_ PL_no_func, "getppid"); @@ -4455,17 +4478,20 @@ PP(pp_gmtime) NV input = Perl_floor(POPn); when = (Time64_T)input; if (when != input) { + /* diag_listed_as: gmtime(%f) too large */ Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), "%s(%.0" NVff ") too large", opname, input); } } if ( TIME_LOWER_BOUND > when ) { + /* diag_listed_as: gmtime(%f) too small */ Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), "%s(%.0" NVff ") too small", opname, when); err = NULL; } else if( when > TIME_UPPER_BOUND ) { + /* diag_listed_as: gmtime(%f) too small */ Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), "%s(%.0" NVff ") too large", opname, when); err = NULL; @@ -4657,8 +4683,8 @@ PP(pp_ghostent) #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT) dVAR; dSP; I32 which = PL_op->op_type; - register char **elem; - register SV *sv; + char **elem; + SV *sv; #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */ struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int); struct hostent *gethostbyname(Netdb_name_t); @@ -4747,7 +4773,7 @@ PP(pp_gnetent) #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT) dVAR; dSP; I32 which = PL_op->op_type; - register SV *sv; + SV *sv; #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */ struct netent *getnetbyaddr(Netdb_net_t, int); struct netent *getnetbyname(Netdb_name_t); @@ -4820,7 +4846,7 @@ PP(pp_gprotoent) #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT) dVAR; dSP; I32 which = PL_op->op_type; - register SV *sv; + SV *sv; #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */ struct protoent *getprotobyname(Netdb_name_t); struct protoent *getprotobynumber(int); @@ -4880,7 +4906,7 @@ PP(pp_gservent) #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT) dVAR; dSP; I32 which = PL_op->op_type; - register SV *sv; + SV *sv; #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */ struct servent *getservbyname(Netdb_name_t, Netdb_name_t); struct servent *getservbyport(int, Netdb_name_t); @@ -4901,9 +4927,7 @@ PP(pp_gservent) #ifdef HAS_GETSERVBYPORT const char * const proto = POPpbytex; unsigned short port = (unsigned short)POPu; -#ifdef HAS_HTONS port = PerlSock_htons(port); -#endif sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto); #else DIE(aTHX_ PL_no_sock_func, "getservbyport"); @@ -4921,11 +4945,7 @@ PP(pp_gservent) PUSHs(sv = sv_newmortal()); if (sent) { if (which == OP_GSBYNAME) { -#ifdef HAS_NTOHS sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port)); -#else - sv_setiv(sv, (IV)(sent->s_port)); -#endif } else sv_setpv(sv, sent->s_name); @@ -4936,11 +4956,7 @@ PP(pp_gservent) if (sent) { mPUSHs(newSVpv(sent->s_name, 0)); PUSHs(space_join_names_mortal(sent->s_aliases)); -#ifdef HAS_NTOHS mPUSHi(PerlSock_ntohs(sent->s_port)); -#else - mPUSHi(sent->s_port); -#endif mPUSHs(newSVpv(sent->s_proto, 0)); } @@ -5057,7 +5073,7 @@ PP(pp_gpwent) #ifdef HAS_PASSWD dVAR; dSP; I32 which = PL_op->op_type; - register SV *sv; + SV *sv; struct passwd *pwent = NULL; /* * We currently support only the SysV getsp* shadow password interface. @@ -5155,11 +5171,7 @@ PP(pp_gpwent) PUSHs(sv = sv_newmortal()); if (pwent) { if (which == OP_GPWNAM) -# if Uid_t_sign <= 0 - sv_setiv(sv, (IV)pwent->pw_uid); -# else - sv_setuv(sv, (UV)pwent->pw_uid); -# endif + sv_setuid(sv, pwent->pw_uid); else sv_setpv(sv, pwent->pw_name); } @@ -5213,17 +5225,9 @@ PP(pp_gpwent) SvTAINTED_on(sv); # endif -# if Uid_t_sign <= 0 - mPUSHi(pwent->pw_uid); -# else - mPUSHu(pwent->pw_uid); -# endif + sv_setuid(PUSHmortal, pwent->pw_uid); + sv_setgid(PUSHmortal, pwent->pw_gid); -# if Uid_t_sign <= 0 - mPUSHi(pwent->pw_gid); -# else - mPUSHu(pwent->pw_gid); -# endif /* pw_change, pw_quota, and pw_age are mutually exclusive-- * because of the poor interface of the Perl getpw*(), * not because there's some standard/convention saying so. @@ -5314,11 +5318,7 @@ PP(pp_ggrent) PUSHs(sv); if (grent) { if (which == OP_GGRNAM) -#if Gid_t_sign <= 0 - sv_setiv(sv, (IV)grent->gr_gid); -#else - sv_setuv(sv, (UV)grent->gr_gid); -#endif + sv_setgid(sv, grent->gr_gid); else sv_setpv(sv, grent->gr_name); } @@ -5334,11 +5334,7 @@ PP(pp_ggrent) PUSHs(sv_mortalcopy(&PL_sv_no)); #endif -#if Gid_t_sign <= 0 - mPUSHi(grent->gr_gid); -#else - mPUSHu(grent->gr_gid); -#endif + sv_setgid(PUSHmortal, grent->gr_gid); #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API)) /* In UNICOS/mk (_CRAYMPP) the multithreading @@ -5381,12 +5377,12 @@ PP(pp_syscall) { #ifdef HAS_SYSCALL dVAR; dSP; dMARK; dORIGMARK; dTARGET; - register I32 items = SP - MARK; + I32 items = SP - MARK; unsigned long a[20]; - register I32 i = 0; - I32 retval = -1; + I32 i = 0; + IV retval = -1; - if (PL_tainting) { + if (TAINTING_get) { while (++MARK <= SP) { if (SvTAINTED(*MARK)) { TAINT; @@ -5440,30 +5436,6 @@ PP(pp_syscall) case 8: retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]); break; -#ifdef atarist - case 9: - retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]); - break; - case 10: - retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]); - break; - case 11: - retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], - a[10]); - break; - case 12: - retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], - a[10],a[11]); - break; - case 13: - retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], - a[10],a[11],a[12]); - break; - case 14: - retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], - a[10],a[11],a[12],a[13]); - break; -#endif /* atarist */ } SP = ORIGMARK; PUSHi(retval); @@ -5598,8 +5570,8 @@ lockf_emulate_flock(int fd, int operation) * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 - * indent-tabs-mode: t + * indent-tabs-mode: nil * End: * - * ex: set ts=8 sts=4 sw=4 noet: + * ex: set ts=8 sts=4 sw=4 et: */