X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=pp_sys.c;h=59ec53397eb29e1901962b009f095c092bbd2805;hb=3a19377ba2315fce9354aa3f06bafbbbab740f1b;hp=a985d658cd6a5c54bd0ae94f2f8a16d1ec959837;hpb=d343c3ef4538135207ab69cd65d1bb1ef5403ccc;p=p5sagit%2Fp5-mst-13.2.git diff --git a/pp_sys.c b/pp_sys.c index a985d65..59ec533 100644 --- a/pp_sys.c +++ b/pp_sys.c @@ -403,100 +403,91 @@ PP(pp_rcatline) PP(pp_warn) { dVAR; dSP; dMARK; - SV *tmpsv; - const char *tmps; + SV *exsv; + const char *pv; STRLEN len; if (SP - MARK > 1) { dTARGET; do_join(TARG, &PL_sv_no, MARK, SP); - tmpsv = TARG; + exsv = TARG; SP = MARK + 1; } else if (SP == MARK) { - tmpsv = &PL_sv_no; + exsv = &PL_sv_no; EXTEND(SP, 1); SP = MARK + 1; } else { - tmpsv = TOPs; - } - tmps = SvPV_const(tmpsv, len); - if ((!tmps || !len) && PL_errgv) { - SV * const error = ERRSV; - SvUPGRADE(error, SVt_PV); - if (SvPOK(error) && SvCUR(error)) - sv_catpvs(error, "\t...caught"); - tmpsv = error; - tmps = SvPV_const(tmpsv, len); + exsv = TOPs; } - if (!tmps || !len) - tmpsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP); - Perl_warn(aTHX_ "%"SVf, SVfARG(tmpsv)); + if (SvROK(exsv) || (pv = 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 { + exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP); + } + warn_sv(exsv); RETSETYES; } PP(pp_die) { dVAR; dSP; dMARK; - const char *tmps; - SV *tmpsv; + SV *exsv; + const char *pv; STRLEN len; - bool multiarg = 0; #ifdef VMS VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); #endif if (SP - MARK != 1) { dTARGET; do_join(TARG, &PL_sv_no, MARK, SP); - tmpsv = TARG; - tmps = SvPV_const(tmpsv, len); - multiarg = 1; + exsv = TARG; SP = MARK + 1; } else { - tmpsv = TOPs; - tmps = SvROK(tmpsv) ? (const char *)NULL : SvPV_const(tmpsv, len); - } - if (!tmps || !len) { - SV * const error = ERRSV; - SvUPGRADE(error, SVt_PV); - if (multiarg ? SvROK(error) : SvROK(tmpsv)) { - if (!multiarg) - SvSetSV(error,tmpsv); - else if (sv_isobject(error)) { - HV * const stash = SvSTASH(SvRV(error)); - 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(error); - PUSHs(file); - PUSHs(line); - PUTBACK; - call_sv(MUTABLE_SV(GvCV(gv)), - G_SCALAR|G_EVAL|G_KEEPERR); - sv_setsv(error,*PL_stack_sp--); - } + exsv = TOPs; + } + + if (SvROK(exsv) || (pv = 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--); } - DIE(aTHX_ NULL); - } - else { - if (SvPOK(error) && SvCUR(error)) - sv_catpvs(error, "\t...propagated"); - tmpsv = error; - if (SvOK(tmpsv)) - tmps = SvPV_const(tmpsv, len); - else - tmps = NULL; } } - if (!tmps || !len) - tmpsv = newSVpvs_flags("Died", SVs_TEMP); - - DIE(aTHX_ "%"SVf, SVfARG(tmpsv)); + else if (SvPOK(ERRSV) && SvCUR(ERRSV)) { + exsv = sv_mortalcopy(ERRSV); + sv_catpvs(exsv, "\t...propagated"); + } + else { + exsv = newSVpvs_flags("Died", SVs_TEMP); + } + die_sv(exsv); RETURN; } @@ -785,7 +776,7 @@ PP(pp_tie) { dVAR; dSP; dMARK; HV* stash; - GV *gv; + GV *gv = NULL; SV *sv; const I32 markoff = MARK - PL_stack_base; const char *methname; @@ -933,7 +924,7 @@ PP(pp_dbmopen) dVAR; dSP; dPOPPOPssrl; HV* stash; - GV *gv; + GV *gv = NULL; HV * const hv = MUTABLE_HV(POPs); SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP); @@ -1170,11 +1161,11 @@ PP(pp_select) dVAR; dSP; dTARGET; HV *hv; GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL; - GV * egv = GvEGV(PL_defoutgv); + GV * egv = GvEGVx(PL_defoutgv); if (!egv) egv = PL_defoutgv; - hv = GvSTASH(egv); + hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL; if (! hv) XPUSHs(&PL_sv_undef); else { @@ -1271,8 +1262,8 @@ PP(pp_enterwrite) register GV *gv; register IO *io; GV *fgv; - CV *cv; - SV * tmpsv = NULL; + CV *cv = NULL; + SV *tmpsv = NULL; if (MAXARG == 0) gv = PL_defoutgv; @@ -2017,7 +2008,7 @@ PP(pp_eof) if (MAXARG) gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */ else if (PL_op->op_flags & OPf_SPECIAL) - gv = PL_last_in_gv = GvEGV(PL_argvgv); /* eof() - ARGV magic */ + gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */ else gv = PL_last_in_gv; /* eof */ @@ -2959,6 +2950,53 @@ PP(pp_stat) RETURN; } +#define tryAMAGICftest_MG(chr) STMT_START { \ + if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \ + && S_try_amagic_ftest(aTHX_ chr)) \ + return NORMAL; \ + } STMT_END + +STATIC bool +S_try_amagic_ftest(pTHX_ char chr) { + dVAR; + dSP; + SV* const arg = TOPs; + + assert(chr != '?'); + SvGETMAGIC(arg); + + if ((PL_op->op_flags & OPf_KIDS) + && SvAMAGIC(TOPs)) + { + const char tmpchr = chr; + const OP *next; + SV * const tmpsv = amagic_call(arg, + newSVpvn_flags(&tmpchr, 1, SVs_TEMP), + ftest_amg, AMGf_unary); + + if (!tmpsv) + return FALSE; + + SPAGAIN; + + next = PL_op->op_next; + if (next->op_type >= OP_FTRREAD && + next->op_type <= OP_FTBINARY && + next->op_private & OPpFT_STACKED + ) { + if (SvTRUE(tmpsv)) + /* leave the object alone */ + return TRUE; + } + + SETs(tmpsv); + PUTBACK; + return TRUE; + } + return FALSE; +} + + /* 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 @@ -3001,7 +3039,7 @@ PP(pp_ftrread) case OP_FTEWRITE: opchar = 'w'; break; case OP_FTEEXEC: opchar = 'x'; break; } - tryAMAGICftest(opchar); + tryAMAGICftest_MG(opchar); STACKED_FTEST_CHECK; @@ -3105,7 +3143,7 @@ PP(pp_ftis) case OP_FTCTIME: opchar = 'C'; break; case OP_FTATIME: opchar = 'A'; break; } - tryAMAGICftest(opchar); + tryAMAGICftest_MG(opchar); STACKED_FTEST_CHECK; @@ -3162,7 +3200,7 @@ PP(pp_ftrowned) case OP_FTSGID: opchar = 'g'; break; case OP_FTSVTX: opchar = 'k'; break; } - tryAMAGICftest(opchar); + tryAMAGICftest_MG(opchar); /* I believe that all these three are likely to be defined on most every system these days. */ @@ -3250,7 +3288,7 @@ PP(pp_ftlink) dSP; I32 result; - tryAMAGICftest('l'); + tryAMAGICftest_MG('l'); result = my_lstat(); SPAGAIN; @@ -3269,7 +3307,7 @@ PP(pp_fttty) GV *gv; SV *tmpsv = NULL; - tryAMAGICftest('t'); + tryAMAGICftest_MG('t'); STACKED_FTEST_CHECK; @@ -3320,7 +3358,7 @@ PP(pp_fttext) GV *gv; PerlIO *fp; - tryAMAGICftest(PL_op->op_type == OP_FTTEXT ? 'T' : 'B'); + tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B'); STACKED_FTEST_CHECK; @@ -4485,6 +4523,15 @@ PP(pp_tms) #endif /* HAS_TIMES */ } +/* The 32 bit int year limits the times we can represent to these + boundaries with a few days wiggle room to account for time zone + offsets +*/ +/* Sat Jan 3 00:00:00 -2147481748 */ +#define TIME_LOWER_BOUND -67768100567755200.0 +/* Sun Dec 29 12:00:00 2147483647 */ +#define TIME_UPPER_BOUND 67767976233316800.0 + PP(pp_gmtime) { dVAR; @@ -4505,23 +4552,35 @@ PP(pp_gmtime) when = (Time64_T)now; } else { - double input = Perl_floor(POPn); + NV input = Perl_floor(POPn); when = (Time64_T)input; if (when != input) { Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), - "%s(%.0f) too large", opname, input); + "%s(%.0" NVff ") too large", opname, input); } } - if (PL_op->op_type == OP_LOCALTIME) - err = S_localtime64_r(&when, &tmbuf); - else - err = S_gmtime64_r(&when, &tmbuf); + if ( TIME_LOWER_BOUND > when ) { + Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), + "%s(%.0" NVff ") too small", opname, when); + err = NULL; + } + else if( when > TIME_UPPER_BOUND ) { + Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), + "%s(%.0" NVff ") too large", opname, when); + err = NULL; + } + else { + if (PL_op->op_type == OP_LOCALTIME) + err = S_localtime64_r(&when, &tmbuf); + else + err = S_gmtime64_r(&when, &tmbuf); + } if (err == NULL) { /* XXX %lld broken for quads */ Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), - "%s(%.0f) failed", opname, (double)when); + "%s(%.0" NVff ") failed", opname, when); } if (GIMME != G_ARRAY) { /* scalar context */ @@ -4708,7 +4767,7 @@ PP(pp_ghostent) struct hostent *gethostbyname(Netdb_name_t); struct hostent *gethostent(void); #endif - struct hostent *hent; + struct hostent *hent = NULL; unsigned long len; EXTEND(SP, 10); @@ -5579,6 +5638,7 @@ PP(pp_syscall) static int fcntl_emulate_flock(int fd, int operation) { + int res; struct flock flock; switch (operation & ~LOCK_NB) { @@ -5598,7 +5658,10 @@ fcntl_emulate_flock(int fd, int operation) flock.l_whence = SEEK_SET; flock.l_start = flock.l_len = (Off_t)0; - return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock); + res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock); + if (res == -1 && ((errno == EAGAIN) || (errno == EACCES))) + errno = EWOULDBLOCK; + return res; } #endif /* FCNTL_EMULATE_FLOCK */