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-rw-r--r--contrib/perl5/perl.c2983
1 files changed, 2983 insertions, 0 deletions
diff --git a/contrib/perl5/perl.c b/contrib/perl5/perl.c
new file mode 100644
index 000000000000..e76d83afdfd8
--- /dev/null
+++ b/contrib/perl5/perl.c
@@ -0,0 +1,2983 @@
+/* perl.c
+ *
+ * Copyright (c) 1987-1998 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.
+ *
+ */
+
+/*
+ * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
+ */
+
+#include "EXTERN.h"
+#include "perl.h"
+#include "patchlevel.h"
+
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+
+#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
+char *getenv _((char *)); /* Usually in <stdlib.h> */
+#endif
+
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+
+#ifdef IAMSUID
+#ifndef DOSUID
+#define DOSUID
+#endif
+#endif
+
+#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
+#ifdef DOSUID
+#undef DOSUID
+#endif
+#endif
+
+#ifdef PERL_OBJECT
+static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
+#else
+static void find_beginning _((void));
+static void forbid_setid _((char *));
+static void incpush _((char *, int));
+static void init_interp _((void));
+static void init_ids _((void));
+static void init_debugger _((void));
+static void init_lexer _((void));
+static void init_main_stash _((void));
+#ifdef USE_THREADS
+static struct perl_thread * init_main_thread _((void));
+#endif /* USE_THREADS */
+static void init_perllib _((void));
+static void init_postdump_symbols _((int, char **, char **));
+static void init_predump_symbols _((void));
+static void my_exit_jump _((void)) __attribute__((noreturn));
+static void nuke_stacks _((void));
+static void open_script _((char *, bool, SV *, int *fd));
+static void usage _((char *));
+static void validate_suid _((char *, char*, int));
+static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
+#endif
+
+#ifdef PERL_OBJECT
+CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
+ IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
+{
+ CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
+ if(pPerl != NULL)
+ pPerl->Init();
+
+ return pPerl;
+}
+#else
+PerlInterpreter *
+perl_alloc(void)
+{
+ PerlInterpreter *sv_interp;
+
+ PL_curinterp = 0;
+ New(53, sv_interp, 1, PerlInterpreter);
+ return sv_interp;
+}
+#endif /* PERL_OBJECT */
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_construct(void)
+#else
+perl_construct(register PerlInterpreter *sv_interp)
+#endif
+{
+#ifdef USE_THREADS
+ int i;
+#ifndef FAKE_THREADS
+ struct perl_thread *thr;
+#endif /* FAKE_THREADS */
+#endif /* USE_THREADS */
+
+#ifndef PERL_OBJECT
+ if (!(PL_curinterp = sv_interp))
+ return;
+#endif
+
+#ifdef MULTIPLICITY
+ ++PL_ninterps;
+ Zero(sv_interp, 1, PerlInterpreter);
+#endif
+
+ /* Init the real globals (and main thread)? */
+ if (!PL_linestr) {
+#ifdef USE_THREADS
+
+ INIT_THREADS;
+#ifdef ALLOC_THREAD_KEY
+ ALLOC_THREAD_KEY;
+#else
+ if (pthread_key_create(&PL_thr_key, 0))
+ croak("panic: pthread_key_create");
+#endif
+ MUTEX_INIT(&PL_sv_mutex);
+ /*
+ * Safe to use basic SV functions from now on (though
+ * not things like mortals or tainting yet).
+ */
+ MUTEX_INIT(&PL_eval_mutex);
+ COND_INIT(&PL_eval_cond);
+ MUTEX_INIT(&PL_threads_mutex);
+ COND_INIT(&PL_nthreads_cond);
+#ifdef EMULATE_ATOMIC_REFCOUNTS
+ MUTEX_INIT(&PL_svref_mutex);
+#endif /* EMULATE_ATOMIC_REFCOUNTS */
+
+ thr = init_main_thread();
+#endif /* USE_THREADS */
+
+ PL_linestr = NEWSV(65,79);
+ sv_upgrade(PL_linestr,SVt_PVIV);
+
+ if (!SvREADONLY(&PL_sv_undef)) {
+ /* set read-only and try to insure than we wont see REFCNT==0
+ very often */
+
+ SvREADONLY_on(&PL_sv_undef);
+ SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
+
+ sv_setpv(&PL_sv_no,PL_No);
+ SvNV(&PL_sv_no);
+ SvREADONLY_on(&PL_sv_no);
+ SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
+
+ sv_setpv(&PL_sv_yes,PL_Yes);
+ SvNV(&PL_sv_yes);
+ SvREADONLY_on(&PL_sv_yes);
+ SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
+ }
+
+#ifdef PERL_OBJECT
+ /* TODO: */
+ /* PL_sighandlerp = sighandler; */
+#else
+ PL_sighandlerp = sighandler;
+#endif
+ PL_pidstatus = newHV();
+
+#ifdef MSDOS
+ /*
+ * There is no way we can refer to them from Perl so close them to save
+ * space. The other alternative would be to provide STDAUX and STDPRN
+ * filehandles.
+ */
+ (void)fclose(stdaux);
+ (void)fclose(stdprn);
+#endif
+ }
+
+ PL_nrs = newSVpv("\n", 1);
+ PL_rs = SvREFCNT_inc(PL_nrs);
+
+ init_stacks(ARGS);
+#ifdef MULTIPLICITY
+ init_interp();
+ PL_perl_destruct_level = 1;
+#else
+ if (PL_perl_destruct_level > 0)
+ init_interp();
+#endif
+
+ init_ids();
+ PL_lex_state = LEX_NOTPARSING;
+
+ PL_start_env.je_prev = NULL;
+ PL_start_env.je_ret = -1;
+ PL_start_env.je_mustcatch = TRUE;
+ PL_top_env = &PL_start_env;
+ STATUS_ALL_SUCCESS;
+
+ SET_NUMERIC_STANDARD();
+#if defined(SUBVERSION) && SUBVERSION > 0
+ sprintf(PL_patchlevel, "%7.5f", (double) 5
+ + ((double) PATCHLEVEL / (double) 1000)
+ + ((double) SUBVERSION / (double) 100000));
+#else
+ sprintf(PL_patchlevel, "%5.3f", (double) 5 +
+ ((double) PATCHLEVEL / (double) 1000));
+#endif
+
+#if defined(LOCAL_PATCH_COUNT)
+ PL_localpatches = local_patches; /* For possible -v */
+#endif
+
+ PerlIO_init(); /* Hook to IO system */
+
+ PL_fdpid = newAV(); /* for remembering popen pids by fd */
+ PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
+
+ DEBUG( {
+ New(51,PL_debname,128,char);
+ New(52,PL_debdelim,128,char);
+ } )
+
+ ENTER;
+}
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_destruct(void)
+#else
+perl_destruct(register PerlInterpreter *sv_interp)
+#endif
+{
+ dTHR;
+ int destruct_level; /* 0=none, 1=full, 2=full with checks */
+ I32 last_sv_count;
+ HV *hv;
+#ifdef USE_THREADS
+ Thread t;
+#endif /* USE_THREADS */
+
+#ifndef PERL_OBJECT
+ if (!(PL_curinterp = sv_interp))
+ return;
+#endif
+
+#ifdef USE_THREADS
+#ifndef FAKE_THREADS
+ /* Pass 1 on any remaining threads: detach joinables, join zombies */
+ retry_cleanup:
+ MUTEX_LOCK(&PL_threads_mutex);
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "perl_destruct: waiting for %d threads...\n",
+ PL_nthreads - 1));
+ for (t = thr->next; t != thr; t = t->next) {
+ MUTEX_LOCK(&t->mutex);
+ switch (ThrSTATE(t)) {
+ AV *av;
+ case THRf_ZOMBIE:
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "perl_destruct: joining zombie %p\n", t));
+ ThrSETSTATE(t, THRf_DEAD);
+ MUTEX_UNLOCK(&t->mutex);
+ PL_nthreads--;
+ /*
+ * The SvREFCNT_dec below may take a long time (e.g. av
+ * may contain an object scalar whose destructor gets
+ * called) so we have to unlock threads_mutex and start
+ * all over again.
+ */
+ MUTEX_UNLOCK(&PL_threads_mutex);
+ JOIN(t, &av);
+ SvREFCNT_dec((SV*)av);
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "perl_destruct: joined zombie %p OK\n", t));
+ goto retry_cleanup;
+ case THRf_R_JOINABLE:
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "perl_destruct: detaching thread %p\n", t));
+ ThrSETSTATE(t, THRf_R_DETACHED);
+ /*
+ * We unlock threads_mutex and t->mutex in the opposite order
+ * from which we locked them just so that DETACH won't
+ * deadlock if it panics. It's only a breach of good style
+ * not a bug since they are unlocks not locks.
+ */
+ MUTEX_UNLOCK(&PL_threads_mutex);
+ DETACH(t);
+ MUTEX_UNLOCK(&t->mutex);
+ goto retry_cleanup;
+ default:
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "perl_destruct: ignoring %p (state %u)\n",
+ t, ThrSTATE(t)));
+ MUTEX_UNLOCK(&t->mutex);
+ /* fall through and out */
+ }
+ }
+ /* We leave the above "Pass 1" loop with threads_mutex still locked */
+
+ /* Pass 2 on remaining threads: wait for the thread count to drop to one */
+ while (PL_nthreads > 1)
+ {
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+ "perl_destruct: final wait for %d threads\n",
+ PL_nthreads - 1));
+ COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
+ }
+ /* At this point, we're the last thread */
+ MUTEX_UNLOCK(&PL_threads_mutex);
+ DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
+ MUTEX_DESTROY(&PL_threads_mutex);
+ COND_DESTROY(&PL_nthreads_cond);
+#endif /* !defined(FAKE_THREADS) */
+#endif /* USE_THREADS */
+
+ destruct_level = PL_perl_destruct_level;
+#ifdef DEBUGGING
+ {
+ char *s;
+ if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
+ int i = atoi(s);
+ if (destruct_level < i)
+ destruct_level = i;
+ }
+ }
+#endif
+
+ LEAVE;
+ FREETMPS;
+
+#ifdef MULTIPLICITY
+ --PL_ninterps;
+#endif
+
+ /* We must account for everything. */
+
+ /* Destroy the main CV and syntax tree */
+ if (PL_main_root) {
+ PL_curpad = AvARRAY(PL_comppad);
+ op_free(PL_main_root);
+ PL_main_root = Nullop;
+ }
+ PL_curcop = &PL_compiling;
+ PL_main_start = Nullop;
+ SvREFCNT_dec(PL_main_cv);
+ PL_main_cv = Nullcv;
+
+ if (PL_sv_objcount) {
+ /*
+ * Try to destruct global references. We do this first so that the
+ * destructors and destructees still exist. Some sv's might remain.
+ * Non-referenced objects are on their own.
+ */
+
+ PL_dirty = TRUE;
+ sv_clean_objs();
+ }
+
+ /* unhook hooks which will soon be, or use, destroyed data */
+ SvREFCNT_dec(PL_warnhook);
+ PL_warnhook = Nullsv;
+ SvREFCNT_dec(PL_diehook);
+ PL_diehook = Nullsv;
+ SvREFCNT_dec(PL_parsehook);
+ PL_parsehook = Nullsv;
+
+ /* call exit list functions */
+ while (PL_exitlistlen-- > 0)
+ PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
+
+ Safefree(PL_exitlist);
+
+ if (destruct_level == 0){
+
+ DEBUG_P(debprofdump());
+
+ /* The exit() function will do everything that needs doing. */
+ return;
+ }
+
+ /* loosen bonds of global variables */
+
+ if(PL_rsfp) {
+ (void)PerlIO_close(PL_rsfp);
+ PL_rsfp = Nullfp;
+ }
+
+ /* Filters for program text */
+ SvREFCNT_dec(PL_rsfp_filters);
+ PL_rsfp_filters = Nullav;
+
+ /* switches */
+ PL_preprocess = FALSE;
+ PL_minus_n = FALSE;
+ PL_minus_p = FALSE;
+ PL_minus_l = FALSE;
+ PL_minus_a = FALSE;
+ PL_minus_F = FALSE;
+ PL_doswitches = FALSE;
+ PL_dowarn = FALSE;
+ PL_doextract = FALSE;
+ PL_sawampersand = FALSE; /* must save all match strings */
+ PL_sawstudy = FALSE; /* do fbm_instr on all strings */
+ PL_sawvec = FALSE;
+ PL_unsafe = FALSE;
+
+ Safefree(PL_inplace);
+ PL_inplace = Nullch;
+
+ if (PL_e_script) {
+ SvREFCNT_dec(PL_e_script);
+ PL_e_script = Nullsv;
+ }
+
+ /* magical thingies */
+
+ Safefree(PL_ofs); /* $, */
+ PL_ofs = Nullch;
+
+ Safefree(PL_ors); /* $\ */
+ PL_ors = Nullch;
+
+ SvREFCNT_dec(PL_rs); /* $/ */
+ PL_rs = Nullsv;
+
+ SvREFCNT_dec(PL_nrs); /* $/ helper */
+ PL_nrs = Nullsv;
+
+ PL_multiline = 0; /* $* */
+
+ SvREFCNT_dec(PL_statname);
+ PL_statname = Nullsv;
+ PL_statgv = Nullgv;
+
+ /* defgv, aka *_ should be taken care of elsewhere */
+
+ /* clean up after study() */
+ SvREFCNT_dec(PL_lastscream);
+ PL_lastscream = Nullsv;
+ Safefree(PL_screamfirst);
+ PL_screamfirst = 0;
+ Safefree(PL_screamnext);
+ PL_screamnext = 0;
+
+ /* startup and shutdown function lists */
+ SvREFCNT_dec(PL_beginav);
+ SvREFCNT_dec(PL_endav);
+ SvREFCNT_dec(PL_initav);
+ PL_beginav = Nullav;
+ PL_endav = Nullav;
+ PL_initav = Nullav;
+
+ /* shortcuts just get cleared */
+ PL_envgv = Nullgv;
+ PL_siggv = Nullgv;
+ PL_incgv = Nullgv;
+ PL_hintgv = Nullgv;
+ PL_errgv = Nullgv;
+ PL_argvgv = Nullgv;
+ PL_argvoutgv = Nullgv;
+ PL_stdingv = Nullgv;
+ PL_last_in_gv = Nullgv;
+ PL_replgv = Nullgv;
+
+ /* reset so print() ends up where we expect */
+ setdefout(Nullgv);
+
+ /* Prepare to destruct main symbol table. */
+
+ hv = PL_defstash;
+ PL_defstash = 0;
+ SvREFCNT_dec(hv);
+
+ FREETMPS;
+ if (destruct_level >= 2) {
+ if (PL_scopestack_ix != 0)
+ warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
+ (long)PL_scopestack_ix);
+ if (PL_savestack_ix != 0)
+ warn("Unbalanced saves: %ld more saves than restores\n",
+ (long)PL_savestack_ix);
+ if (PL_tmps_floor != -1)
+ warn("Unbalanced tmps: %ld more allocs than frees\n",
+ (long)PL_tmps_floor + 1);
+ if (cxstack_ix != -1)
+ warn("Unbalanced context: %ld more PUSHes than POPs\n",
+ (long)cxstack_ix + 1);
+ }
+
+ /* Now absolutely destruct everything, somehow or other, loops or no. */
+ last_sv_count = 0;
+ SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
+ while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
+ last_sv_count = PL_sv_count;
+ sv_clean_all();
+ }
+ SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
+ SvFLAGS(PL_strtab) |= SVt_PVHV;
+
+ /* Destruct the global string table. */
+ {
+ /* Yell and reset the HeVAL() slots that are still holding refcounts,
+ * so that sv_free() won't fail on them.
+ */
+ I32 riter;
+ I32 max;
+ HE *hent;
+ HE **array;
+
+ riter = 0;
+ max = HvMAX(PL_strtab);
+ array = HvARRAY(PL_strtab);
+ hent = array[0];
+ for (;;) {
+ if (hent) {
+ warn("Unbalanced string table refcount: (%d) for \"%s\"",
+ HeVAL(hent) - Nullsv, HeKEY(hent));
+ HeVAL(hent) = Nullsv;
+ hent = HeNEXT(hent);
+ }
+ if (!hent) {
+ if (++riter > max)
+ break;
+ hent = array[riter];
+ }
+ }
+ }
+ SvREFCNT_dec(PL_strtab);
+
+ if (PL_sv_count != 0)
+ warn("Scalars leaked: %ld\n", (long)PL_sv_count);
+
+ sv_free_arenas();
+
+ /* No SVs have survived, need to clean out */
+ PL_linestr = NULL;
+ PL_pidstatus = Nullhv;
+ Safefree(PL_origfilename);
+ Safefree(PL_archpat_auto);
+ Safefree(PL_reg_start_tmp);
+ Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
+ Safefree(PL_op_mask);
+ nuke_stacks();
+ PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
+
+ DEBUG_P(debprofdump());
+#ifdef USE_THREADS
+ MUTEX_DESTROY(&PL_sv_mutex);
+ MUTEX_DESTROY(&PL_eval_mutex);
+ COND_DESTROY(&PL_eval_cond);
+
+ /* As the penultimate thing, free the non-arena SV for thrsv */
+ Safefree(SvPVX(PL_thrsv));
+ Safefree(SvANY(PL_thrsv));
+ Safefree(PL_thrsv);
+ PL_thrsv = Nullsv;
+#endif /* USE_THREADS */
+
+ /* As the absolutely last thing, free the non-arena SV for mess() */
+
+ if (PL_mess_sv) {
+ /* it could have accumulated taint magic */
+ if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
+ MAGIC* mg;
+ MAGIC* moremagic;
+ for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
+ moremagic = mg->mg_moremagic;
+ if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
+ Safefree(mg->mg_ptr);
+ Safefree(mg);
+ }
+ }
+ /* we know that type >= SVt_PV */
+ SvOOK_off(PL_mess_sv);
+ Safefree(SvPVX(PL_mess_sv));
+ Safefree(SvANY(PL_mess_sv));
+ Safefree(PL_mess_sv);
+ PL_mess_sv = Nullsv;
+ }
+}
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_free(void)
+#else
+perl_free(PerlInterpreter *sv_interp)
+#endif
+{
+#ifdef PERL_OBJECT
+ Safefree(this);
+#else
+ if (!(PL_curinterp = sv_interp))
+ return;
+ Safefree(sv_interp);
+#endif
+}
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
+#else
+perl_atexit(void (*fn) (void *), void *ptr)
+#endif
+{
+ Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
+ PL_exitlist[PL_exitlistlen].fn = fn;
+ PL_exitlist[PL_exitlistlen].ptr = ptr;
+ ++PL_exitlistlen;
+}
+
+int
+#ifdef PERL_OBJECT
+CPerlObj::perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
+#else
+perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
+#endif
+{
+ dTHR;
+ register SV *sv;
+ register char *s;
+ char *scriptname = NULL;
+ VOL bool dosearch = FALSE;
+ char *validarg = "";
+ I32 oldscope;
+ AV* comppadlist;
+ dJMPENV;
+ int ret;
+ int fdscript = -1;
+
+#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
+#ifdef IAMSUID
+#undef IAMSUID
+ croak("suidperl is no longer needed since the kernel can now execute\n\
+setuid perl scripts securely.\n");
+#endif
+#endif
+
+#ifndef PERL_OBJECT
+ if (!(PL_curinterp = sv_interp))
+ return 255;
+#endif
+
+#if defined(NeXT) && defined(__DYNAMIC__)
+ _dyld_lookup_and_bind
+ ("__environ", (unsigned long *) &environ_pointer, NULL);
+#endif /* environ */
+
+ PL_origargv = argv;
+ PL_origargc = argc;
+#ifndef VMS /* VMS doesn't have environ array */
+ PL_origenviron = environ;
+#endif
+
+ if (PL_do_undump) {
+
+ /* Come here if running an undumped a.out. */
+
+ PL_origfilename = savepv(argv[0]);
+ PL_do_undump = FALSE;
+ cxstack_ix = -1; /* start label stack again */
+ init_ids();
+ init_postdump_symbols(argc,argv,env);
+ return 0;
+ }
+
+ if (PL_main_root) {
+ PL_curpad = AvARRAY(PL_comppad);
+ op_free(PL_main_root);
+ PL_main_root = Nullop;
+ }
+ PL_main_start = Nullop;
+ SvREFCNT_dec(PL_main_cv);
+ PL_main_cv = Nullcv;
+
+ time(&PL_basetime);
+ oldscope = PL_scopestack_ix;
+
+ JMPENV_PUSH(ret);
+ switch (ret) {
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ while (PL_scopestack_ix > oldscope)
+ LEAVE;
+ FREETMPS;
+ PL_curstash = PL_defstash;
+ if (PL_endav)
+ call_list(oldscope, PL_endav);
+ JMPENV_POP;
+ return STATUS_NATIVE_EXPORT;
+ case 3:
+ JMPENV_POP;
+ PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
+ return 1;
+ }
+
+ sv_setpvn(PL_linestr,"",0);
+ sv = newSVpv("",0); /* first used for -I flags */
+ SAVEFREESV(sv);
+ init_main_stash();
+
+ for (argc--,argv++; argc > 0; argc--,argv++) {
+ if (argv[0][0] != '-' || !argv[0][1])
+ break;
+#ifdef DOSUID
+ if (*validarg)
+ validarg = " PHOOEY ";
+ else
+ validarg = argv[0];
+#endif
+ s = argv[0]+1;
+ reswitch:
+ switch (*s) {
+ case ' ':
+ case '0':
+ case 'F':
+ case 'a':
+ case 'c':
+ case 'd':
+ case 'D':
+ case 'h':
+ case 'i':
+ case 'l':
+ case 'M':
+ case 'm':
+ case 'n':
+ case 'p':
+ case 's':
+ case 'u':
+ case 'U':
+ case 'v':
+ case 'w':
+ if (s = moreswitches(s))
+ goto reswitch;
+ break;
+
+ case 'T':
+ PL_tainting = TRUE;
+ s++;
+ goto reswitch;
+
+ case 'e':
+ if (PL_euid != PL_uid || PL_egid != PL_gid)
+ croak("No -e allowed in setuid scripts");
+ if (!PL_e_script) {
+ PL_e_script = newSVpv("",0);
+ filter_add(read_e_script, NULL);
+ }
+ if (*++s)
+ sv_catpv(PL_e_script, s);
+ else if (argv[1]) {
+ sv_catpv(PL_e_script, argv[1]);
+ argc--,argv++;
+ }
+ else
+ croak("No code specified for -e");
+ sv_catpv(PL_e_script, "\n");
+ break;
+
+ case 'I': /* -I handled both here and in moreswitches() */
+ forbid_setid("-I");
+ if (!*++s && (s=argv[1]) != Nullch) {
+ argc--,argv++;
+ }
+ while (s && isSPACE(*s))
+ ++s;
+ if (s && *s) {
+ char *e, *p;
+ for (e = s; *e && !isSPACE(*e); e++) ;
+ p = savepvn(s, e-s);
+ incpush(p, TRUE);
+ sv_catpv(sv,"-I");
+ sv_catpv(sv,p);
+ sv_catpv(sv," ");
+ Safefree(p);
+ } /* XXX else croak? */
+ break;
+ case 'P':
+ forbid_setid("-P");
+ PL_preprocess = TRUE;
+ s++;
+ goto reswitch;
+ case 'S':
+ forbid_setid("-S");
+ dosearch = TRUE;
+ s++;
+ goto reswitch;
+ case 'V':
+ if (!PL_preambleav)
+ PL_preambleav = newAV();
+ av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
+ if (*++s != ':') {
+ PL_Sv = newSVpv("print myconfig();",0);
+#ifdef VMS
+ sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
+#else
+ sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
+#endif
+#if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY)
+ sv_catpv(PL_Sv,"\" Compile-time options:");
+# ifdef DEBUGGING
+ sv_catpv(PL_Sv," DEBUGGING");
+# endif
+# ifdef NO_EMBED
+ sv_catpv(PL_Sv," NO_EMBED");
+# endif
+# ifdef MULTIPLICITY
+ sv_catpv(PL_Sv," MULTIPLICITY");
+# endif
+ sv_catpv(PL_Sv,"\\n\",");
+#endif
+#if defined(LOCAL_PATCH_COUNT)
+ if (LOCAL_PATCH_COUNT > 0) {
+ int i;
+ sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
+ for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
+ if (PL_localpatches[i])
+ sv_catpvf(PL_Sv,"\" \\t%s\\n\",",PL_localpatches[i]);
+ }
+ }
+#endif
+ sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
+#ifdef __DATE__
+# ifdef __TIME__
+ sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
+# else
+ sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
+# endif
+#endif
+ sv_catpv(PL_Sv, "; \
+$\"=\"\\n \"; \
+@env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
+print \" \\%ENV:\\n @env\\n\" if @env; \
+print \" \\@INC:\\n @INC\\n\";");
+ }
+ else {
+ PL_Sv = newSVpv("config_vars(qw(",0);
+ sv_catpv(PL_Sv, ++s);
+ sv_catpv(PL_Sv, "))");
+ s += strlen(s);
+ }
+ av_push(PL_preambleav, PL_Sv);
+ scriptname = BIT_BUCKET; /* don't look for script or read stdin */
+ goto reswitch;
+ case 'x':
+ PL_doextract = TRUE;
+ s++;
+ if (*s)
+ PL_cddir = savepv(s);
+ break;
+ case 0:
+ break;
+ case '-':
+ if (!*++s || isSPACE(*s)) {
+ argc--,argv++;
+ goto switch_end;
+ }
+ /* catch use of gnu style long options */
+ if (strEQ(s, "version")) {
+ s = "v";
+ goto reswitch;
+ }
+ if (strEQ(s, "help")) {
+ s = "h";
+ goto reswitch;
+ }
+ s--;
+ /* FALL THROUGH */
+ default:
+ croak("Unrecognized switch: -%s (-h will show valid options)",s);
+ }
+ }
+ switch_end:
+
+ if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
+ while (s && *s) {
+ while (isSPACE(*s))
+ s++;
+ if (*s == '-') {
+ s++;
+ if (isSPACE(*s))
+ continue;
+ }
+ if (!*s)
+ break;
+ if (!strchr("DIMUdmw", *s))
+ croak("Illegal switch in PERL5OPT: -%c", *s);
+ s = moreswitches(s);
+ }
+ }
+
+ if (!scriptname)
+ scriptname = argv[0];
+ if (PL_e_script) {
+ argc++,argv--;
+ scriptname = BIT_BUCKET; /* don't look for script or read stdin */
+ }
+ else if (scriptname == Nullch) {
+#ifdef MSDOS
+ if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
+ moreswitches("h");
+#endif
+ scriptname = "-";
+ }
+
+ init_perllib();
+
+ open_script(scriptname,dosearch,sv,&fdscript);
+
+ validate_suid(validarg, scriptname,fdscript);
+
+ if (PL_doextract)
+ find_beginning();
+
+ PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
+ sv_upgrade((SV *)PL_compcv, SVt_PVCV);
+ CvUNIQUE_on(PL_compcv);
+
+ PL_comppad = newAV();
+ av_push(PL_comppad, Nullsv);
+ PL_curpad = AvARRAY(PL_comppad);
+ PL_comppad_name = newAV();
+ PL_comppad_name_fill = 0;
+ PL_min_intro_pending = 0;
+ PL_padix = 0;
+#ifdef USE_THREADS
+ av_store(PL_comppad_name, 0, newSVpv("@_", 2));
+ PL_curpad[0] = (SV*)newAV();
+ SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
+ CvOWNER(PL_compcv) = 0;
+ New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
+ MUTEX_INIT(CvMUTEXP(PL_compcv));
+#endif /* USE_THREADS */
+
+ comppadlist = newAV();
+ AvREAL_off(comppadlist);
+ av_store(comppadlist, 0, (SV*)PL_comppad_name);
+ av_store(comppadlist, 1, (SV*)PL_comppad);
+ CvPADLIST(PL_compcv) = comppadlist;
+
+ boot_core_UNIVERSAL();
+
+ if (xsinit)
+ (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
+#if defined(VMS) || defined(WIN32) || defined(DJGPP)
+ init_os_extras();
+#endif
+
+ init_predump_symbols();
+ /* init_postdump_symbols not currently designed to be called */
+ /* more than once (ENV isn't cleared first, for example) */
+ /* But running with -u leaves %ENV & @ARGV undefined! XXX */
+ if (!PL_do_undump)
+ init_postdump_symbols(argc,argv,env);
+
+ init_lexer();
+
+ /* now parse the script */
+
+ SETERRNO(0,SS$_NORMAL);
+ PL_error_count = 0;
+ if (yyparse() || PL_error_count) {
+ if (PL_minus_c)
+ croak("%s had compilation errors.\n", PL_origfilename);
+ else {
+ croak("Execution of %s aborted due to compilation errors.\n",
+ PL_origfilename);
+ }
+ }
+ PL_curcop->cop_line = 0;
+ PL_curstash = PL_defstash;
+ PL_preprocess = FALSE;
+ if (PL_e_script) {
+ SvREFCNT_dec(PL_e_script);
+ PL_e_script = Nullsv;
+ }
+
+ /* now that script is parsed, we can modify record separator */
+ SvREFCNT_dec(PL_rs);
+ PL_rs = SvREFCNT_inc(PL_nrs);
+ sv_setsv(perl_get_sv("/", TRUE), PL_rs);
+ if (PL_do_undump)
+ my_unexec();
+
+ if (PL_dowarn)
+ gv_check(PL_defstash);
+
+ LEAVE;
+ FREETMPS;
+
+#ifdef MYMALLOC
+ if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
+ dump_mstats("after compilation:");
+#endif
+
+ ENTER;
+ PL_restartop = 0;
+ JMPENV_POP;
+ return 0;
+}
+
+int
+#ifdef PERL_OBJECT
+CPerlObj::perl_run(void)
+#else
+perl_run(PerlInterpreter *sv_interp)
+#endif
+{
+ dSP;
+ I32 oldscope;
+ dJMPENV;
+ int ret;
+
+#ifndef PERL_OBJECT
+ if (!(PL_curinterp = sv_interp))
+ return 255;
+#endif
+
+ oldscope = PL_scopestack_ix;
+
+ JMPENV_PUSH(ret);
+ switch (ret) {
+ case 1:
+ cxstack_ix = -1; /* start context stack again */
+ break;
+ case 2:
+ /* my_exit() was called */
+ while (PL_scopestack_ix > oldscope)
+ LEAVE;
+ FREETMPS;
+ PL_curstash = PL_defstash;
+ if (PL_endav)
+ call_list(oldscope, PL_endav);
+#ifdef MYMALLOC
+ if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
+ dump_mstats("after execution: ");
+#endif
+ JMPENV_POP;
+ return STATUS_NATIVE_EXPORT;
+ case 3:
+ if (!PL_restartop) {
+ PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+ FREETMPS;
+ JMPENV_POP;
+ return 1;
+ }
+ POPSTACK_TO(PL_mainstack);
+ break;
+ }
+
+ DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
+ PL_sawampersand ? "Enabling" : "Omitting"));
+
+ if (!PL_restartop) {
+ DEBUG_x(dump_all());
+ DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
+ DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
+ (unsigned long) thr));
+
+ if (PL_minus_c) {
+ PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
+ my_exit(0);
+ }
+ if (PERLDB_SINGLE && PL_DBsingle)
+ sv_setiv(PL_DBsingle, 1);
+ if (PL_initav)
+ call_list(oldscope, PL_initav);
+ }
+
+ /* do it */
+
+ if (PL_restartop) {
+ PL_op = PL_restartop;
+ PL_restartop = 0;
+ CALLRUNOPS();
+ }
+ else if (PL_main_start) {
+ CvDEPTH(PL_main_cv) = 1;
+ PL_op = PL_main_start;
+ CALLRUNOPS();
+ }
+
+ my_exit(0);
+ /* NOTREACHED */
+ return 0;
+}
+
+SV*
+perl_get_sv(char *name, I32 create)
+{
+ GV *gv;
+#ifdef USE_THREADS
+ if (name[1] == '\0' && !isALPHA(name[0])) {
+ PADOFFSET tmp = find_threadsv(name);
+ if (tmp != NOT_IN_PAD) {
+ dTHR;
+ return THREADSV(tmp);
+ }
+ }
+#endif /* USE_THREADS */
+ gv = gv_fetchpv(name, create, SVt_PV);
+ if (gv)
+ return GvSV(gv);
+ return Nullsv;
+}
+
+AV*
+perl_get_av(char *name, I32 create)
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVAV);
+ if (create)
+ return GvAVn(gv);
+ if (gv)
+ return GvAV(gv);
+ return Nullav;
+}
+
+HV*
+perl_get_hv(char *name, I32 create)
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVHV);
+ if (create)
+ return GvHVn(gv);
+ if (gv)
+ return GvHV(gv);
+ return Nullhv;
+}
+
+CV*
+perl_get_cv(char *name, I32 create)
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVCV);
+ if (create && !GvCVu(gv))
+ return newSUB(start_subparse(FALSE, 0),
+ newSVOP(OP_CONST, 0, newSVpv(name,0)),
+ Nullop,
+ Nullop);
+ if (gv)
+ return GvCVu(gv);
+ return Nullcv;
+}
+
+/* Be sure to refetch the stack pointer after calling these routines. */
+
+I32
+perl_call_argv(char *sub_name, I32 flags, register char **argv)
+
+ /* See G_* flags in cop.h */
+ /* null terminated arg list */
+{
+ dSP;
+
+ PUSHMARK(SP);
+ if (argv) {
+ while (*argv) {
+ XPUSHs(sv_2mortal(newSVpv(*argv,0)));
+ argv++;
+ }
+ PUTBACK;
+ }
+ return perl_call_pv(sub_name, flags);
+}
+
+I32
+perl_call_pv(char *sub_name, I32 flags)
+ /* name of the subroutine */
+ /* See G_* flags in cop.h */
+{
+ return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
+}
+
+I32
+perl_call_method(char *methname, I32 flags)
+ /* name of the subroutine */
+ /* See G_* flags in cop.h */
+{
+ dSP;
+ OP myop;
+ if (!PL_op)
+ PL_op = &myop;
+ XPUSHs(sv_2mortal(newSVpv(methname,0)));
+ PUTBACK;
+ pp_method(ARGS);
+ if(PL_op == &myop)
+ PL_op = Nullop;
+ return perl_call_sv(*PL_stack_sp--, flags);
+}
+
+/* May be called with any of a CV, a GV, or an SV containing the name. */
+I32
+perl_call_sv(SV *sv, I32 flags)
+
+ /* See G_* flags in cop.h */
+{
+ dSP;
+ LOGOP myop; /* fake syntax tree node */
+ I32 oldmark;
+ I32 retval;
+ I32 oldscope;
+ bool oldcatch = CATCH_GET;
+ dJMPENV;
+ int ret;
+ OP* oldop = PL_op;
+
+ if (flags & G_DISCARD) {
+ ENTER;
+ SAVETMPS;
+ }
+
+ Zero(&myop, 1, LOGOP);
+ myop.op_next = Nullop;
+ if (!(flags & G_NOARGS))
+ myop.op_flags |= OPf_STACKED;
+ myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
+ (flags & G_ARRAY) ? OPf_WANT_LIST :
+ OPf_WANT_SCALAR);
+ SAVEOP();
+ PL_op = (OP*)&myop;
+
+ EXTEND(PL_stack_sp, 1);
+ *++PL_stack_sp = sv;
+ oldmark = TOPMARK;
+ oldscope = PL_scopestack_ix;
+
+ if (PERLDB_SUB && PL_curstash != PL_debstash
+ /* Handle first BEGIN of -d. */
+ && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
+ /* Try harder, since this may have been a sighandler, thus
+ * curstash may be meaningless. */
+ && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
+ && !(flags & G_NODEBUG))
+ PL_op->op_private |= OPpENTERSUB_DB;
+
+ if (flags & G_EVAL) {
+ cLOGOP->op_other = PL_op;
+ PL_markstack_ptr--;
+ /* we're trying to emulate pp_entertry() here */
+ {
+ register PERL_CONTEXT *cx;
+ I32 gimme = GIMME_V;
+
+ ENTER;
+ SAVETMPS;
+
+ push_return(PL_op->op_next);
+ PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
+ PUSHEVAL(cx, 0, 0);
+ PL_eval_root = PL_op; /* Only needed so that goto works right. */
+
+ PL_in_eval = 1;
+ if (flags & G_KEEPERR)
+ PL_in_eval |= 4;
+ else
+ sv_setpv(ERRSV,"");
+ }
+ PL_markstack_ptr++;
+
+ JMPENV_PUSH(ret);
+ switch (ret) {
+ case 0:
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ PL_curstash = PL_defstash;
+ FREETMPS;
+ JMPENV_POP;
+ if (PL_statusvalue)
+ croak("Callback called exit");
+ my_exit_jump();
+ /* NOTREACHED */
+ case 3:
+ if (PL_restartop) {
+ PL_op = PL_restartop;
+ PL_restartop = 0;
+ break;
+ }
+ PL_stack_sp = PL_stack_base + oldmark;
+ if (flags & G_ARRAY)
+ retval = 0;
+ else {
+ retval = 1;
+ *++PL_stack_sp = &PL_sv_undef;
+ }
+ goto cleanup;
+ }
+ }
+ else
+ CATCH_SET(TRUE);
+
+ if (PL_op == (OP*)&myop)
+ PL_op = pp_entersub(ARGS);
+ if (PL_op)
+ CALLRUNOPS();
+ retval = PL_stack_sp - (PL_stack_base + oldmark);
+ if ((flags & G_EVAL) && !(flags & G_KEEPERR))
+ sv_setpv(ERRSV,"");
+
+ cleanup:
+ if (flags & G_EVAL) {
+ if (PL_scopestack_ix > oldscope) {
+ SV **newsp;
+ PMOP *newpm;
+ I32 gimme;
+ register PERL_CONTEXT *cx;
+ I32 optype;
+
+ POPBLOCK(cx,newpm);
+ POPEVAL(cx);
+ pop_return();
+ PL_curpm = newpm;
+ LEAVE;
+ }
+ JMPENV_POP;
+ }
+ else
+ CATCH_SET(oldcatch);
+
+ if (flags & G_DISCARD) {
+ PL_stack_sp = PL_stack_base + oldmark;
+ retval = 0;
+ FREETMPS;
+ LEAVE;
+ }
+ PL_op = oldop;
+ return retval;
+}
+
+/* Eval a string. The G_EVAL flag is always assumed. */
+
+I32
+perl_eval_sv(SV *sv, I32 flags)
+
+ /* See G_* flags in cop.h */
+{
+ dSP;
+ UNOP myop; /* fake syntax tree node */
+ I32 oldmark = SP - PL_stack_base;
+ I32 retval;
+ I32 oldscope;
+ dJMPENV;
+ int ret;
+ OP* oldop = PL_op;
+
+ if (flags & G_DISCARD) {
+ ENTER;
+ SAVETMPS;
+ }
+
+ SAVEOP();
+ PL_op = (OP*)&myop;
+ Zero(PL_op, 1, UNOP);
+ EXTEND(PL_stack_sp, 1);
+ *++PL_stack_sp = sv;
+ oldscope = PL_scopestack_ix;
+
+ if (!(flags & G_NOARGS))
+ myop.op_flags = OPf_STACKED;
+ myop.op_next = Nullop;
+ myop.op_type = OP_ENTEREVAL;
+ myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
+ (flags & G_ARRAY) ? OPf_WANT_LIST :
+ OPf_WANT_SCALAR);
+ if (flags & G_KEEPERR)
+ myop.op_flags |= OPf_SPECIAL;
+
+ JMPENV_PUSH(ret);
+ switch (ret) {
+ case 0:
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ PL_curstash = PL_defstash;
+ FREETMPS;
+ JMPENV_POP;
+ if (PL_statusvalue)
+ croak("Callback called exit");
+ my_exit_jump();
+ /* NOTREACHED */
+ case 3:
+ if (PL_restartop) {
+ PL_op = PL_restartop;
+ PL_restartop = 0;
+ break;
+ }
+ PL_stack_sp = PL_stack_base + oldmark;
+ if (flags & G_ARRAY)
+ retval = 0;
+ else {
+ retval = 1;
+ *++PL_stack_sp = &PL_sv_undef;
+ }
+ goto cleanup;
+ }
+
+ if (PL_op == (OP*)&myop)
+ PL_op = pp_entereval(ARGS);
+ if (PL_op)
+ CALLRUNOPS();
+ retval = PL_stack_sp - (PL_stack_base + oldmark);
+ if (!(flags & G_KEEPERR))
+ sv_setpv(ERRSV,"");
+
+ cleanup:
+ JMPENV_POP;
+ if (flags & G_DISCARD) {
+ PL_stack_sp = PL_stack_base + oldmark;
+ retval = 0;
+ FREETMPS;
+ LEAVE;
+ }
+ PL_op = oldop;
+ return retval;
+}
+
+SV*
+perl_eval_pv(char *p, I32 croak_on_error)
+{
+ dSP;
+ SV* sv = newSVpv(p, 0);
+
+ PUSHMARK(SP);
+ perl_eval_sv(sv, G_SCALAR);
+ SvREFCNT_dec(sv);
+
+ SPAGAIN;
+ sv = POPs;
+ PUTBACK;
+
+ if (croak_on_error && SvTRUE(ERRSV))
+ croak(SvPVx(ERRSV, PL_na));
+
+ return sv;
+}
+
+/* Require a module. */
+
+void
+perl_require_pv(char *pv)
+{
+ SV* sv;
+ dSP;
+ PUSHSTACKi(PERLSI_REQUIRE);
+ PUTBACK;
+ sv = sv_newmortal();
+ sv_setpv(sv, "require '");
+ sv_catpv(sv, pv);
+ sv_catpv(sv, "'");
+ perl_eval_sv(sv, G_DISCARD);
+ SPAGAIN;
+ POPSTACK;
+}
+
+void
+magicname(char *sym, char *name, I32 namlen)
+{
+ register GV *gv;
+
+ if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
+ sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
+}
+
+STATIC void
+usage(char *name) /* XXX move this out into a module ? */
+
+{
+ /* This message really ought to be max 23 lines.
+ * Removed -h because the user already knows that opton. Others? */
+
+ static char *usage_msg[] = {
+"-0[octal] specify record separator (\\0, if no argument)",
+"-a autosplit mode with -n or -p (splits $_ into @F)",
+"-c check syntax only (runs BEGIN and END blocks)",
+"-d[:debugger] run scripts under debugger",
+"-D[number/list] set debugging flags (argument is a bit mask or flags)",
+"-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
+"-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
+"-i[extension] edit <> files in place (make backup if extension supplied)",
+"-Idirectory specify @INC/#include directory (may be used more than once)",
+"-l[octal] enable line ending processing, specifies line terminator",
+"-[mM][-]module.. executes `use/no module...' before executing your script.",
+"-n assume 'while (<>) { ... }' loop around your script",
+"-p assume loop like -n but print line also like sed",
+"-P run script through C preprocessor before compilation",
+"-s enable some switch parsing for switches after script name",
+"-S look for the script using PATH environment variable",
+"-T turn on tainting checks",
+"-u dump core after parsing script",
+"-U allow unsafe operations",
+"-v print version number, patchlevel plus VERY IMPORTANT perl info",
+"-V[:variable] print perl configuration information",
+"-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
+"-x[directory] strip off text before #!perl line and perhaps cd to directory",
+"\n",
+NULL
+};
+ char **p = usage_msg;
+
+ printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
+ while (*p)
+ printf("\n %s", *p++);
+}
+
+/* This routine handles any switches that can be given during run */
+
+char *
+moreswitches(char *s)
+{
+ I32 numlen;
+ U32 rschar;
+
+ switch (*s) {
+ case '0':
+ {
+ dTHR;
+ rschar = scan_oct(s, 4, &numlen);
+ SvREFCNT_dec(PL_nrs);
+ if (rschar & ~((U8)~0))
+ PL_nrs = &PL_sv_undef;
+ else if (!rschar && numlen >= 2)
+ PL_nrs = newSVpv("", 0);
+ else {
+ char ch = rschar;
+ PL_nrs = newSVpv(&ch, 1);
+ }
+ return s + numlen;
+ }
+ case 'F':
+ PL_minus_F = TRUE;
+ PL_splitstr = savepv(s + 1);
+ s += strlen(s);
+ return s;
+ case 'a':
+ PL_minus_a = TRUE;
+ s++;
+ return s;
+ case 'c':
+ PL_minus_c = TRUE;
+ s++;
+ return s;
+ case 'd':
+ forbid_setid("-d");
+ s++;
+ if (*s == ':' || *s == '=') {
+ my_setenv("PERL5DB", form("use Devel::%s;", ++s));
+ s += strlen(s);
+ }
+ if (!PL_perldb) {
+ PL_perldb = PERLDB_ALL;
+ init_debugger();
+ }
+ return s;
+ case 'D':
+#ifdef DEBUGGING
+ forbid_setid("-D");
+ if (isALPHA(s[1])) {
+ static char debopts[] = "psltocPmfrxuLHXDS";
+ char *d;
+
+ for (s++; *s && (d = strchr(debopts,*s)); s++)
+ PL_debug |= 1 << (d - debopts);
+ }
+ else {
+ PL_debug = atoi(s+1);
+ for (s++; isDIGIT(*s); s++) ;
+ }
+ PL_debug |= 0x80000000;
+#else
+ warn("Recompile perl with -DDEBUGGING to use -D switch\n");
+ for (s++; isALNUM(*s); s++) ;
+#endif
+ /*SUPPRESS 530*/
+ return s;
+ case 'h':
+ usage(PL_origargv[0]);
+ PerlProc_exit(0);
+ case 'i':
+ if (PL_inplace)
+ Safefree(PL_inplace);
+ PL_inplace = savepv(s+1);
+ /*SUPPRESS 530*/
+ for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
+ if (*s) {
+ *s++ = '\0';
+ if (*s == '-') /* Additional switches on #! line. */
+ s++;
+ }
+ return s;
+ case 'I': /* -I handled both here and in parse_perl() */
+ forbid_setid("-I");
+ ++s;
+ while (*s && isSPACE(*s))
+ ++s;
+ if (*s) {
+ char *e, *p;
+ for (e = s; *e && !isSPACE(*e); e++) ;
+ p = savepvn(s, e-s);
+ incpush(p, TRUE);
+ Safefree(p);
+ s = e;
+ }
+ else
+ croak("No space allowed after -I");
+ return s;
+ case 'l':
+ PL_minus_l = TRUE;
+ s++;
+ if (PL_ors)
+ Safefree(PL_ors);
+ if (isDIGIT(*s)) {
+ PL_ors = savepv("\n");
+ PL_orslen = 1;
+ *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
+ s += numlen;
+ }
+ else {
+ dTHR;
+ if (RsPARA(PL_nrs)) {
+ PL_ors = "\n\n";
+ PL_orslen = 2;
+ }
+ else
+ PL_ors = SvPV(PL_nrs, PL_orslen);
+ PL_ors = savepvn(PL_ors, PL_orslen);
+ }
+ return s;
+ case 'M':
+ forbid_setid("-M"); /* XXX ? */
+ /* FALL THROUGH */
+ case 'm':
+ forbid_setid("-m"); /* XXX ? */
+ if (*++s) {
+ char *start;
+ SV *sv;
+ char *use = "use ";
+ /* -M-foo == 'no foo' */
+ if (*s == '-') { use = "no "; ++s; }
+ sv = newSVpv(use,0);
+ start = s;
+ /* We allow -M'Module qw(Foo Bar)' */
+ while(isALNUM(*s) || *s==':') ++s;
+ if (*s != '=') {
+ sv_catpv(sv, start);
+ if (*(start-1) == 'm') {
+ if (*s != '\0')
+ croak("Can't use '%c' after -mname", *s);
+ sv_catpv( sv, " ()");
+ }
+ } else {
+ sv_catpvn(sv, start, s-start);
+ sv_catpv(sv, " split(/,/,q{");
+ sv_catpv(sv, ++s);
+ sv_catpv(sv, "})");
+ }
+ s += strlen(s);
+ if (PL_preambleav == NULL)
+ PL_preambleav = newAV();
+ av_push(PL_preambleav, sv);
+ }
+ else
+ croak("No space allowed after -%c", *(s-1));
+ return s;
+ case 'n':
+ PL_minus_n = TRUE;
+ s++;
+ return s;
+ case 'p':
+ PL_minus_p = TRUE;
+ s++;
+ return s;
+ case 's':
+ forbid_setid("-s");
+ PL_doswitches = TRUE;
+ s++;
+ return s;
+ case 'T':
+ if (!PL_tainting)
+ croak("Too late for \"-T\" option");
+ s++;
+ return s;
+ case 'u':
+ PL_do_undump = TRUE;
+ s++;
+ return s;
+ case 'U':
+ PL_unsafe = TRUE;
+ s++;
+ return s;
+ case 'v':
+#if defined(SUBVERSION) && SUBVERSION > 0
+ printf("\nThis is perl, version 5.%03d_%02d built for %s",
+ PATCHLEVEL, SUBVERSION, ARCHNAME);
+#else
+ printf("\nThis is perl, version %s built for %s",
+ PL_patchlevel, ARCHNAME);
+#endif
+#if defined(LOCAL_PATCH_COUNT)
+ if (LOCAL_PATCH_COUNT > 0)
+ printf("\n(with %d registered patch%s, see perl -V for more detail)",
+ LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
+#endif
+
+ printf("\n\nCopyright 1987-1998, Larry Wall\n");
+#ifdef MSDOS
+ printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
+#endif
+#ifdef DJGPP
+ printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
+ printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
+#endif
+#ifdef OS2
+ printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
+ "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
+#endif
+#ifdef atarist
+ printf("atariST series port, ++jrb bammi@cadence.com\n");
+#endif
+#ifdef __BEOS__
+ printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
+#endif
+#ifdef MPE
+ printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
+#endif
+#ifdef OEMVS
+ printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
+#endif
+#ifdef BINARY_BUILD_NOTICE
+ BINARY_BUILD_NOTICE;
+#endif
+ printf("\n\
+Perl may be copied only under the terms of either the Artistic License or the\n\
+GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
+Complete documentation for Perl, including FAQ lists, should be found on\n\
+this system using `man perl' or `perldoc perl'. If you have access to the\n\
+Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
+ PerlProc_exit(0);
+ case 'w':
+ PL_dowarn = TRUE;
+ s++;
+ return s;
+ case '*':
+ case ' ':
+ if (s[1] == '-') /* Additional switches on #! line. */
+ return s+2;
+ break;
+ case '-':
+ case 0:
+#ifdef WIN32
+ case '\r':
+#endif
+ case '\n':
+ case '\t':
+ break;
+#ifdef ALTERNATE_SHEBANG
+ case 'S': /* OS/2 needs -S on "extproc" line. */
+ break;
+#endif
+ case 'P':
+ if (PL_preprocess)
+ return s+1;
+ /* FALL THROUGH */
+ default:
+ croak("Can't emulate -%.1s on #! line",s);
+ }
+ return Nullch;
+}
+
+/* compliments of Tom Christiansen */
+
+/* unexec() can be found in the Gnu emacs distribution */
+/* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
+
+void
+my_unexec(void)
+{
+#ifdef UNEXEC
+ SV* prog;
+ SV* file;
+ int status = 1;
+ extern int etext;
+
+ prog = newSVpv(BIN_EXP, 0);
+ sv_catpv(prog, "/perl");
+ file = newSVpv(PL_origfilename, 0);
+ sv_catpv(file, ".perldump");
+
+ unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
+ /* unexec prints msg to stderr in case of failure */
+ PerlProc_exit(status);
+#else
+# ifdef VMS
+# include <lib$routines.h>
+ lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
+# else
+ ABORT(); /* for use with undump */
+# endif
+#endif
+}
+
+/* initialize curinterp */
+STATIC void
+init_interp(void)
+{
+
+#ifdef PERL_OBJECT /* XXX kludge */
+#define I_REINIT \
+ STMT_START { \
+ PL_chopset = " \n-"; \
+ PL_copline = NOLINE; \
+ PL_curcop = &PL_compiling;\
+ PL_curcopdb = NULL; \
+ PL_dbargs = 0; \
+ PL_dlmax = 128; \
+ PL_laststatval = -1; \
+ PL_laststype = OP_STAT; \
+ PL_maxscream = -1; \
+ PL_maxsysfd = MAXSYSFD; \
+ PL_statname = Nullsv; \
+ PL_tmps_floor = -1; \
+ PL_tmps_ix = -1; \
+ PL_op_mask = NULL; \
+ PL_dlmax = 128; \
+ PL_laststatval = -1; \
+ PL_laststype = OP_STAT; \
+ PL_mess_sv = Nullsv; \
+ PL_splitstr = " "; \
+ PL_generation = 100; \
+ PL_exitlist = NULL; \
+ PL_exitlistlen = 0; \
+ PL_regindent = 0; \
+ PL_in_clean_objs = FALSE; \
+ PL_in_clean_all = FALSE; \
+ PL_profiledata = NULL; \
+ PL_rsfp = Nullfp; \
+ PL_rsfp_filters = Nullav; \
+ } STMT_END
+ I_REINIT;
+#else
+# ifdef MULTIPLICITY
+# define PERLVAR(var,type)
+# define PERLVARI(var,type,init) PL_curinterp->var = init;
+# define PERLVARIC(var,type,init) PL_curinterp->var = init;
+# include "intrpvar.h"
+# ifndef USE_THREADS
+# include "thrdvar.h"
+# endif
+# undef PERLVAR
+# undef PERLVARI
+# undef PERLVARIC
+# else
+# define PERLVAR(var,type)
+# define PERLVARI(var,type,init) PL_##var = init;
+# define PERLVARIC(var,type,init) PL_##var = init;
+# include "intrpvar.h"
+# ifndef USE_THREADS
+# include "thrdvar.h"
+# endif
+# undef PERLVAR
+# undef PERLVARI
+# undef PERLVARIC
+# endif
+#endif
+
+}
+
+STATIC void
+init_main_stash(void)
+{
+ dTHR;
+ GV *gv;
+
+ /* Note that strtab is a rather special HV. Assumptions are made
+ about not iterating on it, and not adding tie magic to it.
+ It is properly deallocated in perl_destruct() */
+ PL_strtab = newHV();
+ HvSHAREKEYS_off(PL_strtab); /* mandatory */
+ hv_ksplit(PL_strtab, 512);
+
+ PL_curstash = PL_defstash = newHV();
+ PL_curstname = newSVpv("main",4);
+ gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
+ SvREFCNT_dec(GvHV(gv));
+ GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
+ SvREADONLY_on(gv);
+ HvNAME(PL_defstash) = savepv("main");
+ PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
+ GvMULTI_on(PL_incgv);
+ PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
+ GvMULTI_on(PL_hintgv);
+ PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
+ PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
+ GvMULTI_on(PL_errgv);
+ PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
+ GvMULTI_on(PL_replgv);
+ (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
+ sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
+ sv_setpvn(ERRSV, "", 0);
+ PL_curstash = PL_defstash;
+ PL_compiling.cop_stash = PL_defstash;
+ PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
+ PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
+ /* We must init $/ before switches are processed. */
+ sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
+}
+
+STATIC void
+open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
+{
+ dTHR;
+ register char *s;
+
+ *fdscript = -1;
+
+ if (PL_e_script) {
+ PL_origfilename = savepv("-e");
+ }
+ else {
+ /* if find_script() returns, it returns a malloc()-ed value */
+ PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
+
+ if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
+ char *s = scriptname + 8;
+ *fdscript = atoi(s);
+ while (isDIGIT(*s))
+ s++;
+ if (*s) {
+ scriptname = savepv(s + 1);
+ Safefree(PL_origfilename);
+ PL_origfilename = scriptname;
+ }
+ }
+ }
+
+ PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
+ if (strEQ(PL_origfilename,"-"))
+ scriptname = "";
+ if (*fdscript >= 0) {
+ PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ if (PL_rsfp)
+ fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
+#endif
+ }
+ else if (PL_preprocess) {
+ char *cpp_cfg = CPPSTDIN;
+ SV *cpp = newSVpv("",0);
+ SV *cmd = NEWSV(0,0);
+
+ if (strEQ(cpp_cfg, "cppstdin"))
+ sv_catpvf(cpp, "%s/", BIN_EXP);
+ sv_catpv(cpp, cpp_cfg);
+
+ sv_catpv(sv,"-I");
+ sv_catpv(sv,PRIVLIB_EXP);
+
+#ifdef MSDOS
+ sv_setpvf(cmd, "\
+sed %s -e \"/^[^#]/b\" \
+ -e \"/^#[ ]*include[ ]/b\" \
+ -e \"/^#[ ]*define[ ]/b\" \
+ -e \"/^#[ ]*if[ ]/b\" \
+ -e \"/^#[ ]*ifdef[ ]/b\" \
+ -e \"/^#[ ]*ifndef[ ]/b\" \
+ -e \"/^#[ ]*else/b\" \
+ -e \"/^#[ ]*elif[ ]/b\" \
+ -e \"/^#[ ]*undef[ ]/b\" \
+ -e \"/^#[ ]*endif/b\" \
+ -e \"s/^#.*//\" \
+ %s | %_ -C %_ %s",
+ (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
+#else
+ sv_setpvf(cmd, "\
+%s %s -e '/^[^#]/b' \
+ -e '/^#[ ]*include[ ]/b' \
+ -e '/^#[ ]*define[ ]/b' \
+ -e '/^#[ ]*if[ ]/b' \
+ -e '/^#[ ]*ifdef[ ]/b' \
+ -e '/^#[ ]*ifndef[ ]/b' \
+ -e '/^#[ ]*else/b' \
+ -e '/^#[ ]*elif[ ]/b' \
+ -e '/^#[ ]*undef[ ]/b' \
+ -e '/^#[ ]*endif/b' \
+ -e 's/^[ ]*#.*//' \
+ %s | %_ -C %_ %s",
+#ifdef LOC_SED
+ LOC_SED,
+#else
+ "sed",
+#endif
+ (PL_doextract ? "-e '1,/^#/d\n'" : ""),
+#endif
+ scriptname, cpp, sv, CPPMINUS);
+ PL_doextract = FALSE;
+#ifdef IAMSUID /* actually, this is caught earlier */
+ if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
+#ifdef HAS_SETEUID
+ (void)seteuid(PL_uid); /* musn't stay setuid root */
+#else
+#ifdef HAS_SETREUID
+ (void)setreuid((Uid_t)-1, PL_uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
+#else
+ PerlProc_setuid(PL_uid);
+#endif
+#endif
+#endif
+ if (PerlProc_geteuid() != PL_uid)
+ croak("Can't do seteuid!\n");
+ }
+#endif /* IAMSUID */
+ PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
+ SvREFCNT_dec(cmd);
+ SvREFCNT_dec(cpp);
+ }
+ else if (!*scriptname) {
+ forbid_setid("program input from stdin");
+ PL_rsfp = PerlIO_stdin();
+ }
+ else {
+ PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ if (PL_rsfp)
+ fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
+#endif
+ }
+ if (!PL_rsfp) {
+#ifdef DOSUID
+#ifndef IAMSUID /* in case script is not readable before setuid */
+ if (PL_euid &&
+ PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
+ PL_statbuf.st_mode & (S_ISUID|S_ISGID))
+ {
+ /* try again */
+ PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
+ croak("Can't do setuid\n");
+ }
+#endif
+#endif
+ croak("Can't open perl script \"%s\": %s\n",
+ SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
+ }
+}
+
+STATIC void
+validate_suid(char *validarg, char *scriptname, int fdscript)
+{
+ int which;
+
+ /* do we need to emulate setuid on scripts? */
+
+ /* This code is for those BSD systems that have setuid #! scripts disabled
+ * in the kernel because of a security problem. Merely defining DOSUID
+ * in perl will not fix that problem, but if you have disabled setuid
+ * scripts in the kernel, this will attempt to emulate setuid and setgid
+ * on scripts that have those now-otherwise-useless bits set. The setuid
+ * root version must be called suidperl or sperlN.NNN. If regular perl
+ * discovers that it has opened a setuid script, it calls suidperl with
+ * the same argv that it had. If suidperl finds that the script it has
+ * just opened is NOT setuid root, it sets the effective uid back to the
+ * uid. We don't just make perl setuid root because that loses the
+ * effective uid we had before invoking perl, if it was different from the
+ * uid.
+ *
+ * DOSUID must be defined in both perl and suidperl, and IAMSUID must
+ * be defined in suidperl only. suidperl must be setuid root. The
+ * Configure script will set this up for you if you want it.
+ */
+
+#ifdef DOSUID
+ dTHR;
+ char *s, *s2;
+
+ if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
+ croak("Can't stat script \"%s\"",PL_origfilename);
+ if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
+ I32 len;
+
+#ifdef IAMSUID
+#ifndef HAS_SETREUID
+ /* On this access check to make sure the directories are readable,
+ * there is actually a small window that the user could use to make
+ * filename point to an accessible directory. So there is a faint
+ * chance that someone could execute a setuid script down in a
+ * non-accessible directory. I don't know what to do about that.
+ * But I don't think it's too important. The manual lies when
+ * it says access() is useful in setuid programs.
+ */
+ if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
+ croak("Permission denied");
+#else
+ /* If we can swap euid and uid, then we can determine access rights
+ * with a simple stat of the file, and then compare device and
+ * inode to make sure we did stat() on the same file we opened.
+ * Then we just have to make sure he or she can execute it.
+ */
+ {
+ struct stat tmpstatbuf;
+
+ if (
+#ifdef HAS_SETREUID
+ setreuid(PL_euid,PL_uid) < 0
+#else
+# if HAS_SETRESUID
+ setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
+# endif
+#endif
+ || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
+ croak("Can't swap uid and euid"); /* really paranoid */
+ if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
+ croak("Permission denied"); /* testing full pathname here */
+ if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
+ tmpstatbuf.st_ino != PL_statbuf.st_ino) {
+ (void)PerlIO_close(PL_rsfp);
+ if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
+ PerlIO_printf(PL_rsfp,
+"User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
+(Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
+ (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
+ (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
+ SvPVX(GvSV(PL_curcop->cop_filegv)),
+ (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
+ (void)PerlProc_pclose(PL_rsfp);
+ }
+ croak("Permission denied\n");
+ }
+ if (
+#ifdef HAS_SETREUID
+ setreuid(PL_uid,PL_euid) < 0
+#else
+# if defined(HAS_SETRESUID)
+ setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
+# endif
+#endif
+ || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
+ croak("Can't reswap uid and euid");
+ if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
+ croak("Permission denied\n");
+ }
+#endif /* HAS_SETREUID */
+#endif /* IAMSUID */
+
+ if (!S_ISREG(PL_statbuf.st_mode))
+ croak("Permission denied");
+ if (PL_statbuf.st_mode & S_IWOTH)
+ croak("Setuid/gid script is writable by world");
+ PL_doswitches = FALSE; /* -s is insecure in suid */
+ PL_curcop->cop_line++;
+ if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
+ strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
+ croak("No #! line");
+ s = SvPV(PL_linestr,PL_na)+2;
+ if (*s == ' ') s++;
+ while (!isSPACE(*s)) s++;
+ for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
+ (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
+ if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
+ croak("Not a perl script");
+ while (*s == ' ' || *s == '\t') s++;
+ /*
+ * #! arg must be what we saw above. They can invoke it by
+ * mentioning suidperl explicitly, but they may not add any strange
+ * arguments beyond what #! says if they do invoke suidperl that way.
+ */
+ len = strlen(validarg);
+ if (strEQ(validarg," PHOOEY ") ||
+ strnNE(s,validarg,len) || !isSPACE(s[len]))
+ croak("Args must match #! line");
+
+#ifndef IAMSUID
+ if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
+ PL_euid == PL_statbuf.st_uid)
+ if (!PL_do_undump)
+ croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
+FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
+#endif /* IAMSUID */
+
+ if (PL_euid) { /* oops, we're not the setuid root perl */
+ (void)PerlIO_close(PL_rsfp);
+#ifndef IAMSUID
+ /* try again */
+ PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
+#endif
+ croak("Can't do setuid\n");
+ }
+
+ if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
+#ifdef HAS_SETEGID
+ (void)setegid(PL_statbuf.st_gid);
+#else
+#ifdef HAS_SETREGID
+ (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
+#else
+#ifdef HAS_SETRESGID
+ (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
+#else
+ PerlProc_setgid(PL_statbuf.st_gid);
+#endif
+#endif
+#endif
+ if (PerlProc_getegid() != PL_statbuf.st_gid)
+ croak("Can't do setegid!\n");
+ }
+ if (PL_statbuf.st_mode & S_ISUID) {
+ if (PL_statbuf.st_uid != PL_euid)
+#ifdef HAS_SETEUID
+ (void)seteuid(PL_statbuf.st_uid); /* all that for this */
+#else
+#ifdef HAS_SETREUID
+ (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
+#else
+ PerlProc_setuid(PL_statbuf.st_uid);
+#endif
+#endif
+#endif
+ if (PerlProc_geteuid() != PL_statbuf.st_uid)
+ croak("Can't do seteuid!\n");
+ }
+ else if (PL_uid) { /* oops, mustn't run as root */
+#ifdef HAS_SETEUID
+ (void)seteuid((Uid_t)PL_uid);
+#else
+#ifdef HAS_SETREUID
+ (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
+#else
+ PerlProc_setuid((Uid_t)PL_uid);
+#endif
+#endif
+#endif
+ if (PerlProc_geteuid() != PL_uid)
+ croak("Can't do seteuid!\n");
+ }
+ init_ids();
+ if (!cando(S_IXUSR,TRUE,&PL_statbuf))
+ croak("Permission denied\n"); /* they can't do this */
+ }
+#ifdef IAMSUID
+ else if (PL_preprocess)
+ croak("-P not allowed for setuid/setgid script\n");
+ else if (fdscript >= 0)
+ croak("fd script not allowed in suidperl\n");
+ else
+ croak("Script is not setuid/setgid in suidperl\n");
+
+ /* We absolutely must clear out any saved ids here, so we */
+ /* exec the real perl, substituting fd script for scriptname. */
+ /* (We pass script name as "subdir" of fd, which perl will grok.) */
+ PerlIO_rewind(PL_rsfp);
+ PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
+ for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
+ if (!PL_origargv[which])
+ croak("Permission denied");
+ PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
+ PerlIO_fileno(PL_rsfp), PL_origargv[which]));
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
+#endif
+ PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
+ croak("Can't do setuid\n");
+#endif /* IAMSUID */
+#else /* !DOSUID */
+ if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
+#ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
+ dTHR;
+ PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
+ if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
+ ||
+ (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
+ )
+ if (!PL_do_undump)
+ croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
+FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
+#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
+ /* not set-id, must be wrapped */
+ }
+#endif /* DOSUID */
+}
+
+STATIC void
+find_beginning(void)
+{
+ register char *s, *s2;
+
+ /* skip forward in input to the real script? */
+
+ forbid_setid("-x");
+ while (PL_doextract) {
+ if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
+ croak("No Perl script found in input\n");
+ if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
+ PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
+ PL_doextract = FALSE;
+ while (*s && !(isSPACE (*s) || *s == '#')) s++;
+ s2 = s;
+ while (*s == ' ' || *s == '\t') s++;
+ if (*s++ == '-') {
+ while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
+ if (strnEQ(s2-4,"perl",4))
+ /*SUPPRESS 530*/
+ while (s = moreswitches(s)) ;
+ }
+ if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
+ croak("Can't chdir to %s",PL_cddir);
+ }
+ }
+}
+
+
+STATIC void
+init_ids(void)
+{
+ PL_uid = (int)PerlProc_getuid();
+ PL_euid = (int)PerlProc_geteuid();
+ PL_gid = (int)PerlProc_getgid();
+ PL_egid = (int)PerlProc_getegid();
+#ifdef VMS
+ PL_uid |= PL_gid << 16;
+ PL_euid |= PL_egid << 16;
+#endif
+ PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
+}
+
+STATIC void
+forbid_setid(char *s)
+{
+ if (PL_euid != PL_uid)
+ croak("No %s allowed while running setuid", s);
+ if (PL_egid != PL_gid)
+ croak("No %s allowed while running setgid", s);
+}
+
+STATIC void
+init_debugger(void)
+{
+ dTHR;
+ PL_curstash = PL_debstash;
+ PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
+ AvREAL_off(PL_dbargs);
+ PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
+ PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
+ PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
+ PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(PL_DBsingle, 0);
+ PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(PL_DBtrace, 0);
+ PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(PL_DBsignal, 0);
+ PL_curstash = PL_defstash;
+}
+
+#ifndef STRESS_REALLOC
+#define REASONABLE(size) (size)
+#else
+#define REASONABLE(size) (1) /* unreasonable */
+#endif
+
+void
+init_stacks(ARGSproto)
+{
+ /* start with 128-item stack and 8K cxstack */
+ PL_curstackinfo = new_stackinfo(REASONABLE(128),
+ REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
+ PL_curstackinfo->si_type = PERLSI_MAIN;
+ PL_curstack = PL_curstackinfo->si_stack;
+ PL_mainstack = PL_curstack; /* remember in case we switch stacks */
+
+ PL_stack_base = AvARRAY(PL_curstack);
+ PL_stack_sp = PL_stack_base;
+ PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
+
+ New(50,PL_tmps_stack,REASONABLE(128),SV*);
+ PL_tmps_floor = -1;
+ PL_tmps_ix = -1;
+ PL_tmps_max = REASONABLE(128);
+
+ New(54,PL_markstack,REASONABLE(32),I32);
+ PL_markstack_ptr = PL_markstack;
+ PL_markstack_max = PL_markstack + REASONABLE(32);
+
+ SET_MARKBASE;
+
+ New(54,PL_scopestack,REASONABLE(32),I32);
+ PL_scopestack_ix = 0;
+ PL_scopestack_max = REASONABLE(32);
+
+ New(54,PL_savestack,REASONABLE(128),ANY);
+ PL_savestack_ix = 0;
+ PL_savestack_max = REASONABLE(128);
+
+ New(54,PL_retstack,REASONABLE(16),OP*);
+ PL_retstack_ix = 0;
+ PL_retstack_max = REASONABLE(16);
+}
+
+#undef REASONABLE
+
+STATIC void
+nuke_stacks(void)
+{
+ dTHR;
+ while (PL_curstackinfo->si_next)
+ PL_curstackinfo = PL_curstackinfo->si_next;
+ while (PL_curstackinfo) {
+ PERL_SI *p = PL_curstackinfo->si_prev;
+ /* curstackinfo->si_stack got nuked by sv_free_arenas() */
+ Safefree(PL_curstackinfo->si_cxstack);
+ Safefree(PL_curstackinfo);
+ PL_curstackinfo = p;
+ }
+ Safefree(PL_tmps_stack);
+ Safefree(PL_markstack);
+ Safefree(PL_scopestack);
+ Safefree(PL_savestack);
+ Safefree(PL_retstack);
+ DEBUG( {
+ Safefree(PL_debname);
+ Safefree(PL_debdelim);
+ } )
+}
+
+#ifndef PERL_OBJECT
+static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
+#endif
+
+STATIC void
+init_lexer(void)
+{
+#ifdef PERL_OBJECT
+ PerlIO *tmpfp;
+#endif
+ tmpfp = PL_rsfp;
+ PL_rsfp = Nullfp;
+ lex_start(PL_linestr);
+ PL_rsfp = tmpfp;
+ PL_subname = newSVpv("main",4);
+}
+
+STATIC void
+init_predump_symbols(void)
+{
+ dTHR;
+ GV *tmpgv;
+ GV *othergv;
+
+ sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
+ PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
+ GvMULTI_on(PL_stdingv);
+ IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
+ tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
+
+ tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
+ GvMULTI_on(tmpgv);
+ IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
+ setdefout(tmpgv);
+ tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
+
+ othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
+ GvMULTI_on(othergv);
+ IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
+ tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
+
+ PL_statname = NEWSV(66,0); /* last filename we did stat on */
+
+ if (!PL_osname)
+ PL_osname = savepv(OSNAME);
+}
+
+STATIC void
+init_postdump_symbols(register int argc, register char **argv, register char **env)
+{
+ dTHR;
+ char *s;
+ SV *sv;
+ GV* tmpgv;
+
+ argc--,argv++; /* skip name of script */
+ if (PL_doswitches) {
+ for (; argc > 0 && **argv == '-'; argc--,argv++) {
+ if (!argv[0][1])
+ break;
+ if (argv[0][1] == '-') {
+ argc--,argv++;
+ break;
+ }
+ if (s = strchr(argv[0], '=')) {
+ *s++ = '\0';
+ sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
+ }
+ else
+ sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
+ }
+ }
+ PL_toptarget = NEWSV(0,0);
+ sv_upgrade(PL_toptarget, SVt_PVFM);
+ sv_setpvn(PL_toptarget, "", 0);
+ PL_bodytarget = NEWSV(0,0);
+ sv_upgrade(PL_bodytarget, SVt_PVFM);
+ sv_setpvn(PL_bodytarget, "", 0);
+ PL_formtarget = PL_bodytarget;
+
+ TAINT;
+ if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
+ sv_setpv(GvSV(tmpgv),PL_origfilename);
+ magicname("0", "0", 1);
+ }
+ if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
+ sv_setpv(GvSV(tmpgv),PL_origargv[0]);
+ if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
+ GvMULTI_on(PL_argvgv);
+ (void)gv_AVadd(PL_argvgv);
+ av_clear(GvAVn(PL_argvgv));
+ for (; argc > 0; argc--,argv++) {
+ av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
+ }
+ }
+ if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
+ HV *hv;
+ GvMULTI_on(PL_envgv);
+ hv = GvHVn(PL_envgv);
+ hv_magic(hv, PL_envgv, 'E');
+#ifndef VMS /* VMS doesn't have environ array */
+ /* Note that if the supplied env parameter is actually a copy
+ of the global environ then it may now point to free'd memory
+ if the environment has been modified since. To avoid this
+ problem we treat env==NULL as meaning 'use the default'
+ */
+ if (!env)
+ env = environ;
+ if (env != environ)
+ environ[0] = Nullch;
+ for (; *env; env++) {
+ if (!(s = strchr(*env,'=')))
+ continue;
+ *s++ = '\0';
+#if defined(MSDOS)
+ (void)strupr(*env);
+#endif
+ sv = newSVpv(s--,0);
+ (void)hv_store(hv, *env, s - *env, sv, 0);
+ *s = '=';
+#if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
+ /* Sins of the RTL. See note in my_setenv(). */
+ (void)PerlEnv_putenv(savepv(*env));
+#endif
+ }
+#endif
+#ifdef DYNAMIC_ENV_FETCH
+ HvNAME(hv) = savepv(ENV_HV_NAME);
+#endif
+ }
+ TAINT_NOT;
+ if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
+ sv_setiv(GvSV(tmpgv), (IV)getpid());
+}
+
+STATIC void
+init_perllib(void)
+{
+ char *s;
+ if (!PL_tainting) {
+#ifndef VMS
+ s = PerlEnv_getenv("PERL5LIB");
+ if (s)
+ incpush(s, TRUE);
+ else
+ incpush(PerlEnv_getenv("PERLLIB"), FALSE);
+#else /* VMS */
+ /* Treat PERL5?LIB as a possible search list logical name -- the
+ * "natural" VMS idiom for a Unix path string. We allow each
+ * element to be a set of |-separated directories for compatibility.
+ */
+ char buf[256];
+ int idx = 0;
+ if (my_trnlnm("PERL5LIB",buf,0))
+ do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
+ else
+ while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
+#endif /* VMS */
+ }
+
+/* Use the ~-expanded versions of APPLLIB (undocumented),
+ ARCHLIB PRIVLIB SITEARCH and SITELIB
+*/
+#ifdef APPLLIB_EXP
+ incpush(APPLLIB_EXP, TRUE);
+#endif
+
+#ifdef ARCHLIB_EXP
+ incpush(ARCHLIB_EXP, FALSE);
+#endif
+#ifndef PRIVLIB_EXP
+#define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
+#endif
+#if defined(WIN32)
+ incpush(PRIVLIB_EXP, TRUE);
+#else
+ incpush(PRIVLIB_EXP, FALSE);
+#endif
+
+#ifdef SITEARCH_EXP
+ incpush(SITEARCH_EXP, FALSE);
+#endif
+#ifdef SITELIB_EXP
+#if defined(WIN32)
+ incpush(SITELIB_EXP, TRUE);
+#else
+ incpush(SITELIB_EXP, FALSE);
+#endif
+#endif
+ if (!PL_tainting)
+ incpush(".", FALSE);
+}
+
+#if defined(DOSISH)
+# define PERLLIB_SEP ';'
+#else
+# if defined(VMS)
+# define PERLLIB_SEP '|'
+# else
+# define PERLLIB_SEP ':'
+# endif
+#endif
+#ifndef PERLLIB_MANGLE
+# define PERLLIB_MANGLE(s,n) (s)
+#endif
+
+STATIC void
+incpush(char *p, int addsubdirs)
+{
+ SV *subdir = Nullsv;
+
+ if (!p)
+ return;
+
+ if (addsubdirs) {
+ subdir = sv_newmortal();
+ if (!PL_archpat_auto) {
+ STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
+ + sizeof("//auto"));
+ New(55, PL_archpat_auto, len, char);
+ sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
+#ifdef VMS
+ for (len = sizeof(ARCHNAME) + 2;
+ PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
+ if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
+#endif
+ }
+ }
+
+ /* Break at all separators */
+ while (p && *p) {
+ SV *libdir = NEWSV(55,0);
+ char *s;
+
+ /* skip any consecutive separators */
+ while ( *p == PERLLIB_SEP ) {
+ /* Uncomment the next line for PATH semantics */
+ /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
+ p++;
+ }
+
+ if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
+ sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
+ (STRLEN)(s - p));
+ p = s + 1;
+ }
+ else {
+ sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
+ p = Nullch; /* break out */
+ }
+
+ /*
+ * BEFORE pushing libdir onto @INC we may first push version- and
+ * archname-specific sub-directories.
+ */
+ if (addsubdirs) {
+ struct stat tmpstatbuf;
+#ifdef VMS
+ char *unix;
+ STRLEN len;
+
+ if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
+ len = strlen(unix);
+ while (unix[len-1] == '/') len--; /* Cosmetic */
+ sv_usepvn(libdir,unix,len);
+ }
+ else
+ PerlIO_printf(PerlIO_stderr(),
+ "Failed to unixify @INC element \"%s\"\n",
+ SvPV(libdir,PL_na));
+#endif
+ /* .../archname/version if -d .../archname/version/auto */
+ sv_setsv(subdir, libdir);
+ sv_catpv(subdir, PL_archpat_auto);
+ if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+ S_ISDIR(tmpstatbuf.st_mode))
+ av_push(GvAVn(PL_incgv),
+ newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
+
+ /* .../archname if -d .../archname/auto */
+ sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
+ strlen(PL_patchlevel) + 1, "", 0);
+ if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+ S_ISDIR(tmpstatbuf.st_mode))
+ av_push(GvAVn(PL_incgv),
+ newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
+ }
+
+ /* finally push this lib directory on the end of @INC */
+ av_push(GvAVn(PL_incgv), libdir);
+ }
+}
+
+#ifdef USE_THREADS
+STATIC struct perl_thread *
+init_main_thread()
+{
+ struct perl_thread *thr;
+ XPV *xpv;
+
+ Newz(53, thr, 1, struct perl_thread);
+ PL_curcop = &PL_compiling;
+ thr->cvcache = newHV();
+ thr->threadsv = newAV();
+ /* thr->threadsvp is set when find_threadsv is called */
+ thr->specific = newAV();
+ thr->errhv = newHV();
+ thr->flags = THRf_R_JOINABLE;
+ MUTEX_INIT(&thr->mutex);
+ /* Handcraft thrsv similarly to mess_sv */
+ New(53, PL_thrsv, 1, SV);
+ Newz(53, xpv, 1, XPV);
+ SvFLAGS(PL_thrsv) = SVt_PV;
+ SvANY(PL_thrsv) = (void*)xpv;
+ SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
+ SvPVX(PL_thrsv) = (char*)thr;
+ SvCUR_set(PL_thrsv, sizeof(thr));
+ SvLEN_set(PL_thrsv, sizeof(thr));
+ *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
+ thr->oursv = PL_thrsv;
+ PL_chopset = " \n-";
+
+ MUTEX_LOCK(&PL_threads_mutex);
+ PL_nthreads++;
+ thr->tid = 0;
+ thr->next = thr;
+ thr->prev = thr;
+ MUTEX_UNLOCK(&PL_threads_mutex);
+
+#ifdef HAVE_THREAD_INTERN
+ init_thread_intern(thr);
+#endif
+
+#ifdef SET_THREAD_SELF
+ SET_THREAD_SELF(thr);
+#else
+ thr->self = pthread_self();
+#endif /* SET_THREAD_SELF */
+ SET_THR(thr);
+
+ /*
+ * These must come after the SET_THR because sv_setpvn does
+ * SvTAINT and the taint fields require dTHR.
+ */
+ PL_toptarget = NEWSV(0,0);
+ sv_upgrade(PL_toptarget, SVt_PVFM);
+ sv_setpvn(PL_toptarget, "", 0);
+ PL_bodytarget = NEWSV(0,0);
+ sv_upgrade(PL_bodytarget, SVt_PVFM);
+ sv_setpvn(PL_bodytarget, "", 0);
+ PL_formtarget = PL_bodytarget;
+ thr->errsv = newSVpv("", 0);
+ (void) find_threadsv("@"); /* Ensure $@ is initialised early */
+
+ PL_maxscream = -1;
+ PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
+ PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
+ PL_regindent = 0;
+ PL_reginterp_cnt = 0;
+
+ return thr;
+}
+#endif /* USE_THREADS */
+
+void
+call_list(I32 oldscope, AV *paramList)
+{
+ dTHR;
+ line_t oldline = PL_curcop->cop_line;
+ STRLEN len;
+ dJMPENV;
+ int ret;
+
+ while (AvFILL(paramList) >= 0) {
+ CV *cv = (CV*)av_shift(paramList);
+
+ SAVEFREESV(cv);
+
+ JMPENV_PUSH(ret);
+ switch (ret) {
+ case 0: {
+ SV* atsv = ERRSV;
+ PUSHMARK(PL_stack_sp);
+ perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
+ (void)SvPV(atsv, len);
+ if (len) {
+ JMPENV_POP;
+ PL_curcop = &PL_compiling;
+ PL_curcop->cop_line = oldline;
+ if (paramList == PL_beginav)
+ sv_catpv(atsv, "BEGIN failed--compilation aborted");
+ else
+ sv_catpv(atsv, "END failed--cleanup aborted");
+ while (PL_scopestack_ix > oldscope)
+ LEAVE;
+ croak("%s", SvPVX(atsv));
+ }
+ }
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ while (PL_scopestack_ix > oldscope)
+ LEAVE;
+ FREETMPS;
+ PL_curstash = PL_defstash;
+ if (PL_endav)
+ call_list(oldscope, PL_endav);
+ JMPENV_POP;
+ PL_curcop = &PL_compiling;
+ PL_curcop->cop_line = oldline;
+ if (PL_statusvalue) {
+ if (paramList == PL_beginav)
+ croak("BEGIN failed--compilation aborted");
+ else
+ croak("END failed--cleanup aborted");
+ }
+ my_exit_jump();
+ /* NOTREACHED */
+ case 3:
+ if (!PL_restartop) {
+ PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+ FREETMPS;
+ break;
+ }
+ JMPENV_POP;
+ PL_curcop = &PL_compiling;
+ PL_curcop->cop_line = oldline;
+ JMPENV_JUMP(3);
+ }
+ JMPENV_POP;
+ }
+}
+
+void
+my_exit(U32 status)
+{
+ dTHR;
+
+ DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
+ thr, (unsigned long) status));
+ switch (status) {
+ case 0:
+ STATUS_ALL_SUCCESS;
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ break;
+ default:
+ STATUS_NATIVE_SET(status);
+ break;
+ }
+ my_exit_jump();
+}
+
+void
+my_failure_exit(void)
+{
+#ifdef VMS
+ if (vaxc$errno & 1) {
+ if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
+ STATUS_NATIVE_SET(44);
+ }
+ else {
+ if (!vaxc$errno && errno) /* unlikely */
+ STATUS_NATIVE_SET(44);
+ else
+ STATUS_NATIVE_SET(vaxc$errno);
+ }
+#else
+ int exitstatus;
+ if (errno & 255)
+ STATUS_POSIX_SET(errno);
+ else {
+ exitstatus = STATUS_POSIX >> 8;
+ if (exitstatus & 255)
+ STATUS_POSIX_SET(exitstatus);
+ else
+ STATUS_POSIX_SET(255);
+ }
+#endif
+ my_exit_jump();
+}
+
+STATIC void
+my_exit_jump(void)
+{
+ dSP;
+ register PERL_CONTEXT *cx;
+ I32 gimme;
+ SV **newsp;
+
+ if (PL_e_script) {
+ SvREFCNT_dec(PL_e_script);
+ PL_e_script = Nullsv;
+ }
+
+ POPSTACK_TO(PL_mainstack);
+ if (cxstack_ix >= 0) {
+ if (cxstack_ix > 0)
+ dounwind(0);
+ POPBLOCK(cx,PL_curpm);
+ LEAVE;
+ }
+
+ JMPENV_JUMP(2);
+}
+
+#ifdef PERL_OBJECT
+#define NO_XSLOCKS
+#endif /* PERL_OBJECT */
+
+#include "XSUB.h"
+
+static I32
+#ifdef PERL_OBJECT
+read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
+#else
+read_e_script(int idx, SV *buf_sv, int maxlen)
+#endif
+{
+ char *p, *nl;
+ p = SvPVX(PL_e_script);
+ nl = strchr(p, '\n');
+ nl = (nl) ? nl+1 : SvEND(PL_e_script);
+ if (nl-p == 0) {
+ filter_del(read_e_script);
+ return 0;
+ }
+ sv_catpvn(buf_sv, p, nl-p);
+ sv_chop(PL_e_script, nl);
+ return 1;
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-27 10:28:00 +0000