X-Git-Url: https://perl5.git.perl.org/perl5.git/blobdiff_plain/07004ebbe530fe5ce1c67e63c0b8e1c0aa77b3b9..500c19467028989935b081c5fb7b8b33ffb86d40:/util.c diff --git a/util.c b/util.c index 1809f70..8d9d2e4 100644 --- a/util.c +++ b/util.c @@ -99,7 +99,6 @@ Perl_safesysmalloc(MEM_SIZE size) #endif ptr = (Malloc_t)PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ PERL_ALLOC_CHECK(ptr); - DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size)); if (ptr != NULL) { #ifdef PERL_TRACK_MEMPOOL struct perl_memory_debug_header *const header @@ -122,6 +121,7 @@ Perl_safesysmalloc(MEM_SIZE size) # endif ptr = (Malloc_t)((char*)ptr+sTHX); #endif + DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%"UVxf": (%05ld) malloc %ld bytes\n",PTR2UV(ptr),(long)PL_an++,(long)size)); return ptr; } else { @@ -930,6 +930,27 @@ Perl_foldEQ(const char *s1, const char *s2, register I32 len) } return 1; } +I32 +Perl_foldEQ_latin1(const char *s1, const char *s2, register I32 len) +{ + /* Compare non-utf8 using Unicode (Latin1) semantics. Does not work on + * MICRO_SIGN, LATIN_SMALL_LETTER_SHARP_S, nor + * LATIN_SMALL_LETTER_Y_WITH_DIAERESIS, and does not check for these. Nor + * does it check that the strings each have at least 'len' characters */ + + register const U8 *a = (const U8 *)s1; + register const U8 *b = (const U8 *)s2; + + PERL_ARGS_ASSERT_FOLDEQ_LATIN1; + + while (len--) { + if (*a != *b && *a != PL_fold_latin1[*b]) { + return 0; + } + a++, b++; + } + return 1; +} /* =for apidoc foldEQ_locale @@ -1087,6 +1108,25 @@ Perl_savesvpv(pTHX_ SV *sv) return (char *) CopyD(pv,newaddr,len,char); } +/* +=for apidoc savesharedsvpv + +A version of C which allocates the duplicate string in +memory which is shared between threads. + +=cut +*/ + +char * +Perl_savesharedsvpv(pTHX_ SV *sv) +{ + STRLEN len; + const char * const pv = SvPV_const(sv, len); + + PERL_ARGS_ASSERT_SAVESHAREDSVPV; + + return savesharedpvn(pv, len); +} /* the SV for Perl_form() and mess() is not kept in an arena */ @@ -1097,7 +1137,7 @@ S_mess_alloc(pTHX) SV *sv; XPVMG *any; - if (!PL_dirty) + if (PL_phase != PERL_PHASE_DESTRUCT) return newSVpvs_flags("", SVs_TEMP); if (PL_mess_sv) @@ -1324,7 +1364,7 @@ Perl_mess_sv(pTHX_ SV *basemsg, bool consume) line_mode ? "line" : "chunk", (IV)IoLINES(GvIOp(PL_last_in_gv))); } - if (PL_dirty) + if (PL_phase == PERL_PHASE_DESTRUCT) sv_catpvs(sv, " during global destruction"); sv_catpvs(sv, ".\n"); } @@ -1371,38 +1411,16 @@ Perl_write_to_stderr(pTHX_ SV* msv) if (PL_stderrgv && SvREFCNT(PL_stderrgv) && (io = GvIO(PL_stderrgv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) - { - dSP; - ENTER; - SAVETMPS; - - save_re_context(); - SAVESPTR(PL_stderrgv); - PL_stderrgv = NULL; - - PUSHSTACKi(PERLSI_MAGIC); - - PUSHMARK(SP); - EXTEND(SP,2); - PUSHs(SvTIED_obj(MUTABLE_SV(io), mg)); - PUSHs(msv); - PUTBACK; - call_method("PRINT", G_SCALAR); - - POPSTACK; - FREETMPS; - LEAVE; - } + Perl_magic_methcall(aTHX_ MUTABLE_SV(io), mg, "PRINT", + G_SCALAR | G_DISCARD | G_WRITING_TO_STDERR, 1, msv); else { #ifdef USE_SFIO /* SFIO can really mess with your errno */ dSAVED_ERRNO; #endif PerlIO * const serr = Perl_error_log; - STRLEN msglen; - const char* message = SvPVx_const(msv, msglen); - PERL_WRITE_MSG_TO_CONSOLE(serr, message, msglen); + do_print(msv, serr); (void)PerlIO_flush(serr); #ifdef USE_SFIO RESTORE_ERRNO; @@ -3826,70 +3844,73 @@ Perl_my_fflush_all(pTHX) } void -Perl_report_evil_fh(pTHX_ const GV *gv, const IO *io, I32 op) -{ - const char * const name = gv && isGV(gv) ? GvENAME(gv) : NULL; - - if (op == OP_phoney_OUTPUT_ONLY || op == OP_phoney_INPUT_ONLY) { - if (ckWARN(WARN_IO)) { - const char * const direction = - (const char *)((op == OP_phoney_INPUT_ONLY) ? "in" : "out"); - if (name && *name) - Perl_warner(aTHX_ packWARN(WARN_IO), - "Filehandle %s opened only for %sput", - name, direction); - else - Perl_warner(aTHX_ packWARN(WARN_IO), - "Filehandle opened only for %sput", direction); - } +Perl_report_wrongway_fh(pTHX_ const GV *gv, char have) +{ + if (ckWARN(WARN_IO)) { + const char * const name + = gv && (isGV(gv) || isGV_with_GP(gv)) ? GvENAME(gv) : NULL; + const char * const direction = have == '>' ? "out" : "in"; + + if (name && *name) + Perl_warner(aTHX_ packWARN(WARN_IO), + "Filehandle %s opened only for %sput", + name, direction); + else + Perl_warner(aTHX_ packWARN(WARN_IO), + "Filehandle opened only for %sput", direction); } - else { - const char *vile; - I32 warn_type; +} - if (gv && io && IoTYPE(io) == IoTYPE_CLOSED) { - vile = "closed"; - warn_type = WARN_CLOSED; +void +Perl_report_evil_fh(pTHX_ const GV *gv) +{ + const IO *io = gv ? GvIO(gv) : NULL; + const PERL_BITFIELD16 op = PL_op->op_type; + const char *vile; + I32 warn_type; + + if (io && IoTYPE(io) == IoTYPE_CLOSED) { + vile = "closed"; + warn_type = WARN_CLOSED; + } + else { + vile = "unopened"; + warn_type = WARN_UNOPENED; + } + + if (ckWARN(warn_type)) { + const char * const name + = gv && (isGV(gv) || isGV_with_GP(gv)) ? GvENAME(gv) : NULL; + const char * const pars = + (const char *)(OP_IS_FILETEST(op) ? "" : "()"); + const char * const func = + (const char *) + (op == OP_READLINE ? "readline" : /* "" not nice */ + op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */ + PL_op_desc[op]); + const char * const type = + (const char *) + (OP_IS_SOCKET(op) || (io && IoTYPE(io) == IoTYPE_SOCKET) + ? "socket" : "filehandle"); + if (name && *name) { + Perl_warner(aTHX_ packWARN(warn_type), + "%s%s on %s %s %s", func, pars, vile, type, name); + if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP)) + Perl_warner( + aTHX_ packWARN(warn_type), + "\t(Are you trying to call %s%s on dirhandle %s?)\n", + func, pars, name + ); } else { - vile = "unopened"; - warn_type = WARN_UNOPENED; - } - - if (ckWARN(warn_type)) { - const char * const pars = - (const char *)(OP_IS_FILETEST(op) ? "" : "()"); - const char * const func = - (const char *) - (op == OP_READLINE ? "readline" : /* "" not nice */ - op == OP_LEAVEWRITE ? "write" : /* "write exit" not nice */ - op < 0 ? "" : /* handle phoney cases */ - PL_op_desc[op]); - const char * const type = - (const char *) - (OP_IS_SOCKET(op) || - (gv && io && IoTYPE(io) == IoTYPE_SOCKET) ? - "socket" : "filehandle"); - if (name && *name) { - Perl_warner(aTHX_ packWARN(warn_type), - "%s%s on %s %s %s", func, pars, vile, type, name); - if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP)) - Perl_warner( - aTHX_ packWARN(warn_type), - "\t(Are you trying to call %s%s on dirhandle %s?)\n", - func, pars, name - ); - } - else { - Perl_warner(aTHX_ packWARN(warn_type), - "%s%s on %s %s", func, pars, vile, type); - if (gv && io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP)) - Perl_warner( - aTHX_ packWARN(warn_type), - "\t(Are you trying to call %s%s on dirhandle?)\n", - func, pars - ); - } + Perl_warner(aTHX_ packWARN(warn_type), + "%s%s on %s %s", func, pars, vile, type); + if (io && IoDIRP(io) && !(IoFLAGS(io) & IOf_FAKE_DIRP)) + Perl_warner( + aTHX_ packWARN(warn_type), + "\t(Are you trying to call %s%s on dirhandle?)\n", + func, pars + ); } } } @@ -4134,7 +4155,7 @@ Perl_mini_mktime(pTHX_ struct tm *ptm) * outside the scope for this routine. Since we convert back based on the * same rules we used to build the yearday, you'll only get strange results * for input which needed normalising, or for the 'odd' century years which - * were leap years in the Julian calander but not in the Gregorian one. + * were leap years in the Julian calendar but not in the Gregorian one. * I can live with that. * * This algorithm also fails to handle years before A.D. 1 gracefully, but @@ -4516,6 +4537,11 @@ Perl_getcwd_sv(pTHX_ register SV *sv) /* =for apidoc prescan_version +Validate that a given string can be parsed as a version object, but doesn't +actually perform the parsing. Can use either strict or lax validation rules. +Can optionally set a number of hint variables to save the parsing code +some time when tokenizing. + =cut */ const char * @@ -5049,29 +5075,35 @@ Perl_upg_version(pTHX_ SV *ver, bool qv) #ifndef SvVOK # if PERL_VERSION > 5 /* This will only be executed for 5.6.0 - 5.8.0 inclusive */ - if ( len >= 3 && !instr(version,".") && !instr(version,"_") - && !(*version == 'u' && strEQ(version, "undef")) - && (*version < '0' || *version > '9') ) { + if ( len >= 3 && !instr(version,".") && !instr(version,"_")) { /* may be a v-string */ - SV * const nsv = sv_newmortal(); - const char *nver; - const char *pos; - int saw_decimal = 0; - sv_setpvf(nsv,"v%vd",ver); - pos = nver = savepv(SvPV_nolen(nsv)); - - /* scan the resulting formatted string */ - pos++; /* skip the leading 'v' */ - while ( *pos == '.' || isDIGIT(*pos) ) { - if ( *pos == '.' ) - saw_decimal++ ; - pos++; - } + char *testv = (char *)version; + STRLEN tlen = len; + for (tlen=0; tlen < len; tlen++, testv++) { + /* if one of the characters is non-text assume v-string */ + if (testv[0] < ' ') { + SV * const nsv = sv_newmortal(); + const char *nver; + const char *pos; + int saw_decimal = 0; + sv_setpvf(nsv,"v%vd",ver); + pos = nver = savepv(SvPV_nolen(nsv)); + + /* scan the resulting formatted string */ + pos++; /* skip the leading 'v' */ + while ( *pos == '.' || isDIGIT(*pos) ) { + if ( *pos == '.' ) + saw_decimal++ ; + pos++; + } - /* is definitely a v-string */ - if ( saw_decimal >= 2 ) { - Safefree(version); - version = nver; + /* is definitely a v-string */ + if ( saw_decimal >= 2 ) { + Safefree(version); + version = nver; + } + break; + } } } # endif @@ -5090,27 +5122,30 @@ Perl_upg_version(pTHX_ SV *ver, bool qv) /* =for apidoc vverify -Validates that the SV contains a valid version object. +Validates that the SV contains valid internal structure for a version object. +It may be passed either the version object (RV) or the hash itself (HV). If +the structure is valid, it returns the HV. If the structure is invalid, +it returns NULL. - bool vverify(SV *vobj); + SV *hv = vverify(sv); Note that it only confirms the bare minimum structure (so as not to get confused by derived classes which may contain additional hash entries): =over 4 -=item * The SV contains a [reference to a] hash +=item * The SV is an HV or a reference to an HV =item * The hash contains a "version" key -=item * The "version" key has [a reference to] an AV as its value +=item * The "version" key has a reference to an AV as its value =back =cut */ -bool +SV * Perl_vverify(pTHX_ SV *vs) { SV *sv; @@ -5125,9 +5160,9 @@ Perl_vverify(pTHX_ SV *vs) && hv_exists(MUTABLE_HV(vs), "version", 7) && (sv = SvRV(*hv_fetchs(MUTABLE_HV(vs), "version", FALSE))) && SvTYPE(sv) == SVt_PVAV ) - return TRUE; + return vs; else - return FALSE; + return NULL; } /* @@ -5141,6 +5176,8 @@ point representation. Call like: NOTE: you can pass either the object directly or the SV contained within the RV. +The SV returned has a refcount of 1. + =cut */ @@ -5155,10 +5192,9 @@ Perl_vnumify(pTHX_ SV *vs) PERL_ARGS_ASSERT_VNUMIFY; - if ( SvROK(vs) ) - vs = SvRV(vs); - - if ( !vverify(vs) ) + /* extract the HV from the object */ + vs = vverify(vs); + if ( ! vs ) Perl_croak(aTHX_ "Invalid version object"); /* see if various flags exist */ @@ -5221,6 +5257,8 @@ representation. Call like: NOTE: you can pass either the object directly or the SV contained within the RV. +The SV returned has a refcount of 1. + =cut */ @@ -5234,10 +5272,9 @@ Perl_vnormal(pTHX_ SV *vs) PERL_ARGS_ASSERT_VNORMAL; - if ( SvROK(vs) ) - vs = SvRV(vs); - - if ( !vverify(vs) ) + /* extract the HV from the object */ + vs = vverify(vs); + if ( ! vs ) Perl_croak(aTHX_ "Invalid version object"); if ( hv_exists(MUTABLE_HV(vs), "alpha", 5 ) ) @@ -5279,7 +5316,9 @@ Perl_vnormal(pTHX_ SV *vs) In order to maintain maximum compatibility with earlier versions of Perl, this function will return either the floating point notation or the multiple dotted notation, depending on whether -the original version contained 1 or more dots, respectively +the original version contained 1 or more dots, respectively. + +The SV returned has a refcount of 1. =cut */ @@ -5289,10 +5328,9 @@ Perl_vstringify(pTHX_ SV *vs) { PERL_ARGS_ASSERT_VSTRINGIFY; - if ( SvROK(vs) ) - vs = SvRV(vs); - - if ( !vverify(vs) ) + /* extract the HV from the object */ + vs = vverify(vs); + if ( ! vs ) Perl_croak(aTHX_ "Invalid version object"); if (hv_exists(MUTABLE_HV(vs), "original", sizeof("original") - 1)) { @@ -5332,15 +5370,10 @@ Perl_vcmp(pTHX_ SV *lhv, SV *rhv) PERL_ARGS_ASSERT_VCMP; - if ( SvROK(lhv) ) - lhv = SvRV(lhv); - if ( SvROK(rhv) ) - rhv = SvRV(rhv); - - if ( !vverify(lhv) ) - Perl_croak(aTHX_ "Invalid version object"); - - if ( !vverify(rhv) ) + /* extract the HVs from the objects */ + lhv = vverify(lhv); + rhv = vverify(rhv); + if ( ! ( lhv && rhv ) ) Perl_croak(aTHX_ "Invalid version object"); /* get the left hand term */ @@ -5720,8 +5753,11 @@ Perl_parse_unicode_opts(pTHX_ const char **popt) opt = (U32) atoi(p); while (isDIGIT(*p)) p++; - if (*p && *p != '\n' && *p != '\r') + if (*p && *p != '\n' && *p != '\r') { + if(isSPACE(*p)) goto the_end_of_the_opts_parser; + else Perl_croak(aTHX_ "Unknown Unicode option letter '%c'", *p); + } } else { for (; *p; p++) { @@ -5747,9 +5783,12 @@ Perl_parse_unicode_opts(pTHX_ const char **popt) case PERL_UNICODE_UTF8CACHEASSERT: opt |= PERL_UNICODE_UTF8CACHEASSERT_FLAG; break; default: - if (*p != '\n' && *p != '\r') + if (*p != '\n' && *p != '\r') { + if(isSPACE(*p)) goto the_end_of_the_opts_parser; + else Perl_croak(aTHX_ "Unknown Unicode option letter '%c'", *p); + } } } } @@ -5757,6 +5796,8 @@ Perl_parse_unicode_opts(pTHX_ const char **popt) else opt = PERL_UNICODE_DEFAULT_FLAGS; + the_end_of_the_opts_parser: + if (opt & ~PERL_UNICODE_ALL_FLAGS) Perl_croak(aTHX_ "Unknown Unicode option value %"UVuf, (UV) (opt & ~PERL_UNICODE_ALL_FLAGS)); @@ -6117,7 +6158,7 @@ S_mem_log_common(enum mem_log_type mlt, const UV n, mem_log_common (alty, num, tysz, tynm, sv, oal, nal, flnm, ln, fnnm) #else /* this is suboptimal, but bug compatible. User is providing their - own implemenation, but is getting these functions anyway, and they + own implementation, but is getting these functions anyway, and they do nothing. But _NOIMPL users should be able to cope or fix */ # define \ mem_log_common_if(alty, num, tysz, tynm, u, oal, nal, flnm, ln, fnnm) \ @@ -6226,8 +6267,14 @@ Perl_my_snprintf(char *buffer, const Size_t len, const char *format, ...) retval = vsprintf(buffer, format, ap); #endif va_end(ap); - /* vsnprintf() shows failure with >= len, vsprintf() with < 0 */ - if (retval < 0 || (len > 0 && (Size_t)retval >= len)) + /* vsprintf() shows failure with < 0 */ + if (retval < 0 +#ifdef HAS_VSNPRINTF + /* vsnprintf() shows failure with >= len */ + || + (len > 0 && (Size_t)retval >= len) +#endif + ) Perl_croak(aTHX_ "panic: my_snprintf buffer overflow"); return retval; } @@ -6266,8 +6313,14 @@ Perl_my_vsnprintf(char *buffer, const Size_t len, const char *format, va_list ap retval = vsprintf(buffer, format, ap); # endif #endif /* #ifdef NEED_VA_COPY */ - /* vsnprintf() shows failure with >= len, vsprintf() with < 0 */ - if (retval < 0 || (len > 0 && (Size_t)retval >= len)) + /* vsprintf() shows failure with < 0 */ + if (retval < 0 +#ifdef HAS_VSNPRINTF + /* vsnprintf() shows failure with >= len */ + || + (len > 0 && (Size_t)retval >= len) +#endif + ) Perl_croak(aTHX_ "panic: my_vsnprintf buffer overflow"); return retval; } @@ -6445,6 +6498,84 @@ Perl_my_cxt_init(pTHX_ const char *my_cxt_key, size_t size) #endif /* #ifndef PERL_GLOBAL_STRUCT_PRIVATE */ #endif /* PERL_IMPLICIT_CONTEXT */ +void +Perl_xs_version_bootcheck(pTHX_ U32 items, U32 ax, const char *xs_p, + STRLEN xs_len) +{ + SV *sv; + const char *vn = NULL; + SV *const module = PL_stack_base[ax]; + + PERL_ARGS_ASSERT_XS_VERSION_BOOTCHECK; + + if (items >= 2) /* version supplied as bootstrap arg */ + sv = PL_stack_base[ax + 1]; + else { + /* XXX GV_ADDWARN */ + vn = "XS_VERSION"; + sv = get_sv(Perl_form(aTHX_ "%"SVf"::%s", module, vn), 0); + if (!sv || !SvOK(sv)) { + vn = "VERSION"; + sv = get_sv(Perl_form(aTHX_ "%"SVf"::%s", module, vn), 0); + } + } + if (sv) { + SV *xssv = Perl_newSVpvn_flags(aTHX_ xs_p, xs_len, SVs_TEMP); + SV *pmsv = sv_derived_from(sv, "version") + ? sv : sv_2mortal(new_version(sv)); + xssv = upg_version(xssv, 0); + if ( vcmp(pmsv,xssv) ) { + SV *string = vstringify(xssv); + SV *xpt = Perl_newSVpvf(aTHX_ "%"SVf" object version %"SVf + " does not match ", module, string); + + SvREFCNT_dec(string); + string = vstringify(pmsv); + + if (vn) { + Perl_sv_catpvf(aTHX_ xpt, "$%"SVf"::%s %"SVf, module, vn, + string); + } else { + Perl_sv_catpvf(aTHX_ xpt, "bootstrap parameter %"SVf, string); + } + SvREFCNT_dec(string); + + Perl_sv_2mortal(aTHX_ xpt); + Perl_croak_sv(aTHX_ xpt); + } + } +} + +void +Perl_xs_apiversion_bootcheck(pTHX_ SV *module, const char *api_p, + STRLEN api_len) +{ + SV *xpt = NULL; + SV *compver = Perl_newSVpvn_flags(aTHX_ api_p, api_len, SVs_TEMP); + SV *runver; + + PERL_ARGS_ASSERT_XS_APIVERSION_BOOTCHECK; + + /* This might croak */ + compver = upg_version(compver, 0); + /* This should never croak */ + runver = new_version(PL_apiversion); + if (vcmp(compver, runver)) { + SV *compver_string = vstringify(compver); + SV *runver_string = vstringify(runver); + xpt = Perl_newSVpvf(aTHX_ "Perl API version %"SVf + " of %"SVf" does not match %"SVf, + compver_string, module, runver_string); + Perl_sv_2mortal(aTHX_ xpt); + + SvREFCNT_dec(compver_string); + SvREFCNT_dec(runver_string); + } + SvREFCNT_dec(runver); + if (xpt) + Perl_croak_sv(aTHX_ xpt); +} + #ifndef HAS_STRLCAT Size_t Perl_my_strlcat(char *dst, const char *src, Size_t size) @@ -6500,13 +6631,17 @@ Perl_get_db_sub(pTHX_ SV **svp, CV *cv) PL_tainted = FALSE; save_item(dbsv); if (!PERLDB_SUB_NN) { - GV * const gv = CvGV(cv); + GV *gv = CvGV(cv); if ( svp && ((CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) || strEQ(GvNAME(gv), "END") || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ !( (SvTYPE(*svp) == SVt_PVGV) - && (GvCV((const GV *)*svp) == cv) )))) { + && (GvCV((const GV *)*svp) == cv) + && (gv = (GV *)*svp) + ) + ) + )) { /* Use GV from the stack as a fallback. */ /* GV is potentially non-unique, or contain different CV. */ SV * const tmp = newRV(MUTABLE_SV(cv));