void unroll_this(pTHX_ OP* op) { struct sljit_compiler* compiler = sljit_create_compiler(); HV* seenops = newHV(); #ifdef DEBUG if (getenv("RUNOPS_OPTIMIZED_DEBUG")) { CV *runcv = Perl_find_runcv(NULL); sljit_compiler_verbose(compiler, stderr); DEBUGf(("Unroll %s::%s cv=%p, op=%p (%s)\n", HvNAME_get(CvSTASH(runcv)), GvENAME(CvGV(runcv)), runcv, op, sljit_get_platform_name())); } #endif sljit_emit_enter(compiler, 0, 2, 1, 0); unroll_tree(compiler, seenops, op, NULL); fixup_jumps(compiler, needjumps, labels); // This is needed for things that drop off the runloop without a // return, e.g. S_sortcv. TODO: Make conditional? sljit_emit_return(compiler, SLJIT_MEM, (sljit_w) &PL_op); op->op_ppaddr = sljit_generate_code(compiler); op->op_spare = 3; DEBUGf(("Code at %p\n", op->op_ppaddr)); labels = NULL; needjumps = NULL; SvREFCNT_dec(seenops); sljit_free_compiler(compiler); }
JSObject* PJS_NewPerlSub( pTHX_ JSContext *cx, JSObject *parent, SV *cvref ) { JSObject *newobj = PJS_CreateJSVis( aTHX_ cx, JS_NewObject(cx, &perlsub_class, NULL, parent), cvref ); if(newobj) { CV *cv = (CV *)SvRV(cvref); const char *fname = CvANON(cv) ? "(anonymous)" : GvENAME(CvGV(cv)); JSString *jstr = JS_InternString(cx, fname); if(!jstr || !JS_DefineProperty(cx, newobj, "name", STRING_TO_JSVAL(jstr), NULL, NULL, JSPROP_READONLY | JSPROP_PERMANENT) ) { PJS_unrootJSVis(cx, newobj); newobj = NULL; } } return newobj; }
STATIC const char * _sub_name( pTHX ) { const CV *const cv = _curcv( aTHX ); if ( cv ) { const GV *const gv = CvGV( cv ); if ( gv ) { return GvENAME( gv ); } } return NULL; }
void Perl_taint_env(pTHX) { SV** svp; MAGIC* mg; char** e; static char* misc_env[] = { "IFS", /* most shells' inter-field separators */ "CDPATH", /* ksh dain bramage #1 */ "ENV", /* ksh dain bramage #2 */ "BASH_ENV", /* bash dain bramage -- I guess it's contagious */ NULL }; /* Don't bother if there's no *ENV glob */ if (!PL_envgv) return; /* If there's no %ENV hash of if it's not magical, croak, because * it probably doesn't reflect the actual environment */ if (!GvHV(PL_envgv) || !(SvRMAGICAL(GvHV(PL_envgv)) && mg_find((SV*)GvHV(PL_envgv), PERL_MAGIC_env))) { bool was_tainted = PL_tainted; char *name = GvENAME(PL_envgv); PL_tainted = TRUE; if (strEQ(name,"ENV")) /* hash alias */ taint_proper("%%ENV is aliased to %s%s", "another variable"); else /* glob alias: report it in the error message */ taint_proper("%%ENV is aliased to %%%s%s", name); /* this statement is reached under -t or -U */ PL_tainted = was_tainted; } #ifdef VMS { int i = 0; char name[10 + TYPE_DIGITS(int)] = "DCL$PATH"; while (1) { if (i) (void)sprintf(name,"DCL$PATH;%d", i); svp = hv_fetch(GvHVn(PL_envgv), name, strlen(name), FALSE); if (!svp || *svp == &PL_sv_undef) break; if (SvTAINTED(*svp)) { TAINT; taint_proper("Insecure %s%s", "$ENV{DCL$PATH}"); } if ((mg = mg_find(*svp, PERL_MAGIC_envelem)) && MgTAINTEDDIR(mg)) { TAINT; taint_proper("Insecure directory in %s%s", "$ENV{DCL$PATH}"); } i++; } } #endif /* VMS */ svp = hv_fetch(GvHVn(PL_envgv),"PATH",4,FALSE); if (svp && *svp) { if (SvTAINTED(*svp)) { TAINT; taint_proper("Insecure %s%s", "$ENV{PATH}"); } if ((mg = mg_find(*svp, PERL_MAGIC_envelem)) && MgTAINTEDDIR(mg)) { TAINT; taint_proper("Insecure directory in %s%s", "$ENV{PATH}"); } } #ifndef VMS /* tainted $TERM is okay if it contains no metachars */ svp = hv_fetch(GvHVn(PL_envgv),"TERM",4,FALSE); if (svp && *svp && SvTAINTED(*svp)) { STRLEN n_a; bool was_tainted = PL_tainted; char *t = SvPV(*svp, n_a); char *e = t + n_a; PL_tainted = was_tainted; if (t < e && isALNUM(*t)) t++; while (t < e && (isALNUM(*t) || strchr("-_.+", *t))) t++; if (t < e) { TAINT; taint_proper("Insecure $ENV{%s}%s", "TERM"); } } #endif /* !VMS */ for (e = misc_env; *e; e++) { svp = hv_fetch(GvHVn(PL_envgv), *e, strlen(*e), FALSE); if (svp && *svp != &PL_sv_undef && SvTAINTED(*svp)) { TAINT; taint_proper("Insecure $ENV{%s}%s", *e); } } }
void Perl_taint_env(pTHX) { SV** svp; MAGIC* mg; const char* const *e; static const char* const misc_env[] = { "IFS", /* most shells' inter-field separators */ "CDPATH", /* ksh dain bramage #1 */ "ENV", /* ksh dain bramage #2 */ "BASH_ENV", /* bash dain bramage -- I guess it's contagious */ #ifdef WIN32 "PERL5SHELL", /* used for system() on Windows */ #endif NULL }; /* Don't bother if there's no *ENV glob */ if (!PL_envgv) return; /* If there's no %ENV hash or if it's not magical, croak, because * it probably doesn't reflect the actual environment */ if (!GvHV(PL_envgv) || !(SvRMAGICAL(GvHV(PL_envgv)) && mg_find((const SV *)GvHV(PL_envgv), PERL_MAGIC_env))) { const bool was_tainted = TAINT_get; const char * const name = GvENAME(PL_envgv); TAINT; if (strEQ(name,"ENV")) /* hash alias */ taint_proper("%%ENV is aliased to %s%s", "another variable"); else /* glob alias: report it in the error message */ taint_proper("%%ENV is aliased to %%%s%s", name); /* this statement is reached under -t or -U */ TAINT_set(was_tainted); #ifdef NO_TAINT_SUPPORT PERL_UNUSED_VAR(was_tainted); #endif } #ifdef VMS { int i = 0; char name[10 + TYPE_DIGITS(int)] = "DCL$PATH"; STRLEN len = 8; /* strlen(name) */ while (1) { if (i) len = my_sprintf(name,"DCL$PATH;%d", i); svp = hv_fetch(GvHVn(PL_envgv), name, len, FALSE); if (!svp || *svp == &PL_sv_undef) break; if (SvTAINTED(*svp)) { TAINT; taint_proper("Insecure %s%s", "$ENV{DCL$PATH}"); } if ((mg = mg_find(*svp, PERL_MAGIC_envelem)) && MgTAINTEDDIR(mg)) { TAINT; taint_proper("Insecure directory in %s%s", "$ENV{DCL$PATH}"); } i++; } } #endif /* VMS */ svp = hv_fetchs(GvHVn(PL_envgv),"PATH",FALSE); if (svp && *svp) { if (SvTAINTED(*svp)) { TAINT; taint_proper("Insecure %s%s", "$ENV{PATH}"); } if ((mg = mg_find(*svp, PERL_MAGIC_envelem)) && MgTAINTEDDIR(mg)) { TAINT; taint_proper("Insecure directory in %s%s", "$ENV{PATH}"); } } #ifndef VMS /* tainted $TERM is okay if it contains no metachars */ svp = hv_fetchs(GvHVn(PL_envgv),"TERM",FALSE); if (svp && *svp && SvTAINTED(*svp)) { STRLEN len; const bool was_tainted = TAINT_get; const char *t = SvPV_const(*svp, len); const char * const e = t + len; TAINT_set(was_tainted); #ifdef NO_TAINT_SUPPORT PERL_UNUSED_VAR(was_tainted); #endif if (t < e && isWORDCHAR(*t)) t++; while (t < e && (isWORDCHAR(*t) || strchr("-_.+", *t))) t++; if (t < e) { TAINT; taint_proper("Insecure $ENV{%s}%s", "TERM"); } } #endif /* !VMS */ for (e = misc_env; *e; e++) { SV * const * const svp = hv_fetch(GvHVn(PL_envgv), *e, strlen(*e), FALSE); if (svp && *svp != &PL_sv_undef && SvTAINTED(*svp)) { TAINT; taint_proper("Insecure $ENV{%s}%s", *e); } } }