mirror of
https://git.FreeBSD.org/src.git
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2998 lines
73 KiB
C
2998 lines
73 KiB
C
/* perl.c
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*
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* Copyright (c) 1987-1998 Larry Wall
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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/*
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* "A ship then new they built for him/of mithril and of elven glass" --Bilbo
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*/
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#include "EXTERN.h"
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#include "perl.h"
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#include "patchlevel.h"
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/* XXX If this causes problems, set i_unistd=undef in the hint file. */
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#ifdef I_UNISTD
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#include <unistd.h>
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#endif
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#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
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char *getenv _((char *)); /* Usually in <stdlib.h> */
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#endif
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#ifdef I_FCNTL
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#include <fcntl.h>
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#endif
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#ifdef I_SYS_FILE
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#include <sys/file.h>
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#endif
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#ifdef IAMSUID
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#ifndef DOSUID
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#define DOSUID
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#endif
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#endif
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#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
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#ifdef DOSUID
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#undef DOSUID
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#endif
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#endif
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#ifdef PERL_OBJECT
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static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
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#else
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static void find_beginning _((void));
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static void forbid_setid _((char *));
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static void incpush _((char *, int));
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static void init_interp _((void));
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static void init_ids _((void));
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static void init_debugger _((void));
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static void init_lexer _((void));
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static void init_main_stash _((void));
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#ifdef USE_THREADS
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static struct perl_thread * init_main_thread _((void));
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#endif /* USE_THREADS */
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static void init_perllib _((void));
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static void init_postdump_symbols _((int, char **, char **));
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static void init_predump_symbols _((void));
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static void my_exit_jump _((void)) __attribute__((noreturn));
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static void nuke_stacks _((void));
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static void open_script _((char *, bool, SV *, int *fd));
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static void usage _((char *));
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static void validate_suid _((char *, char*, int));
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static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
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#endif
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#ifdef PERL_OBJECT
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CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
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IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
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{
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CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
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if(pPerl != NULL)
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pPerl->Init();
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return pPerl;
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}
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#else
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PerlInterpreter *
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perl_alloc(void)
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{
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PerlInterpreter *sv_interp;
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PL_curinterp = 0;
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New(53, sv_interp, 1, PerlInterpreter);
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return sv_interp;
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}
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#endif /* PERL_OBJECT */
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void
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#ifdef PERL_OBJECT
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CPerlObj::perl_construct(void)
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#else
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perl_construct(register PerlInterpreter *sv_interp)
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#endif
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{
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#ifdef USE_THREADS
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int i;
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#ifndef FAKE_THREADS
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struct perl_thread *thr;
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#endif /* FAKE_THREADS */
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#endif /* USE_THREADS */
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#ifndef PERL_OBJECT
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if (!(PL_curinterp = sv_interp))
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return;
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#endif
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#ifdef MULTIPLICITY
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++PL_ninterps;
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Zero(sv_interp, 1, PerlInterpreter);
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#endif
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/* Init the real globals (and main thread)? */
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if (!PL_linestr) {
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#ifdef USE_THREADS
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INIT_THREADS;
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#ifdef ALLOC_THREAD_KEY
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ALLOC_THREAD_KEY;
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#else
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if (pthread_key_create(&PL_thr_key, 0))
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croak("panic: pthread_key_create");
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#endif
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MUTEX_INIT(&PL_sv_mutex);
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/*
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* Safe to use basic SV functions from now on (though
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* not things like mortals or tainting yet).
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*/
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MUTEX_INIT(&PL_eval_mutex);
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COND_INIT(&PL_eval_cond);
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MUTEX_INIT(&PL_threads_mutex);
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COND_INIT(&PL_nthreads_cond);
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#ifdef EMULATE_ATOMIC_REFCOUNTS
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MUTEX_INIT(&PL_svref_mutex);
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#endif /* EMULATE_ATOMIC_REFCOUNTS */
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thr = init_main_thread();
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#endif /* USE_THREADS */
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PL_linestr = NEWSV(65,79);
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sv_upgrade(PL_linestr,SVt_PVIV);
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if (!SvREADONLY(&PL_sv_undef)) {
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/* set read-only and try to insure than we wont see REFCNT==0
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very often */
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SvREADONLY_on(&PL_sv_undef);
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SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
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sv_setpv(&PL_sv_no,PL_No);
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SvNV(&PL_sv_no);
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SvREADONLY_on(&PL_sv_no);
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SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
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sv_setpv(&PL_sv_yes,PL_Yes);
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SvNV(&PL_sv_yes);
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SvREADONLY_on(&PL_sv_yes);
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SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
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}
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#ifdef PERL_OBJECT
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/* TODO: */
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/* PL_sighandlerp = sighandler; */
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#else
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PL_sighandlerp = sighandler;
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#endif
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PL_pidstatus = newHV();
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#ifdef MSDOS
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/*
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* There is no way we can refer to them from Perl so close them to save
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* space. The other alternative would be to provide STDAUX and STDPRN
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* filehandles.
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*/
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(void)fclose(stdaux);
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(void)fclose(stdprn);
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#endif
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}
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PL_nrs = newSVpv("\n", 1);
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PL_rs = SvREFCNT_inc(PL_nrs);
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init_stacks(ARGS);
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#ifdef MULTIPLICITY
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init_interp();
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PL_perl_destruct_level = 1;
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#else
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if (PL_perl_destruct_level > 0)
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init_interp();
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#endif
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init_ids();
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PL_lex_state = LEX_NOTPARSING;
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PL_start_env.je_prev = NULL;
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PL_start_env.je_ret = -1;
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PL_start_env.je_mustcatch = TRUE;
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PL_top_env = &PL_start_env;
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STATUS_ALL_SUCCESS;
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SET_NUMERIC_STANDARD();
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#if defined(SUBVERSION) && SUBVERSION > 0
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sprintf(PL_patchlevel, "%7.5f", (double) 5
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+ ((double) PATCHLEVEL / (double) 1000)
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+ ((double) SUBVERSION / (double) 100000));
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#else
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sprintf(PL_patchlevel, "%5.3f", (double) 5 +
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((double) PATCHLEVEL / (double) 1000));
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#endif
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#if defined(LOCAL_PATCH_COUNT)
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PL_localpatches = local_patches; /* For possible -v */
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#endif
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PerlIO_init(); /* Hook to IO system */
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PL_fdpid = newAV(); /* for remembering popen pids by fd */
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PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
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DEBUG( {
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New(51,PL_debname,128,char);
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New(52,PL_debdelim,128,char);
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} )
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ENTER;
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}
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void
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#ifdef PERL_OBJECT
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CPerlObj::perl_destruct(void)
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#else
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perl_destruct(register PerlInterpreter *sv_interp)
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#endif
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{
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dTHR;
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int destruct_level; /* 0=none, 1=full, 2=full with checks */
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I32 last_sv_count;
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HV *hv;
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#ifdef USE_THREADS
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Thread t;
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#endif /* USE_THREADS */
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#ifndef PERL_OBJECT
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if (!(PL_curinterp = sv_interp))
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return;
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#endif
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#ifdef USE_THREADS
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#ifndef FAKE_THREADS
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/* Pass 1 on any remaining threads: detach joinables, join zombies */
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retry_cleanup:
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MUTEX_LOCK(&PL_threads_mutex);
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DEBUG_S(PerlIO_printf(PerlIO_stderr(),
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"perl_destruct: waiting for %d threads...\n",
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PL_nthreads - 1));
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for (t = thr->next; t != thr; t = t->next) {
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MUTEX_LOCK(&t->mutex);
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switch (ThrSTATE(t)) {
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AV *av;
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case THRf_ZOMBIE:
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DEBUG_S(PerlIO_printf(PerlIO_stderr(),
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"perl_destruct: joining zombie %p\n", t));
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ThrSETSTATE(t, THRf_DEAD);
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MUTEX_UNLOCK(&t->mutex);
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PL_nthreads--;
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/*
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* The SvREFCNT_dec below may take a long time (e.g. av
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* may contain an object scalar whose destructor gets
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* called) so we have to unlock threads_mutex and start
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* all over again.
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*/
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MUTEX_UNLOCK(&PL_threads_mutex);
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JOIN(t, &av);
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SvREFCNT_dec((SV*)av);
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DEBUG_S(PerlIO_printf(PerlIO_stderr(),
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"perl_destruct: joined zombie %p OK\n", t));
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goto retry_cleanup;
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case THRf_R_JOINABLE:
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DEBUG_S(PerlIO_printf(PerlIO_stderr(),
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"perl_destruct: detaching thread %p\n", t));
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ThrSETSTATE(t, THRf_R_DETACHED);
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/*
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* We unlock threads_mutex and t->mutex in the opposite order
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* from which we locked them just so that DETACH won't
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* deadlock if it panics. It's only a breach of good style
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* not a bug since they are unlocks not locks.
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*/
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MUTEX_UNLOCK(&PL_threads_mutex);
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DETACH(t);
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MUTEX_UNLOCK(&t->mutex);
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goto retry_cleanup;
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default:
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DEBUG_S(PerlIO_printf(PerlIO_stderr(),
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"perl_destruct: ignoring %p (state %u)\n",
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t, ThrSTATE(t)));
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MUTEX_UNLOCK(&t->mutex);
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/* fall through and out */
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}
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}
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/* We leave the above "Pass 1" loop with threads_mutex still locked */
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/* Pass 2 on remaining threads: wait for the thread count to drop to one */
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while (PL_nthreads > 1)
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{
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DEBUG_S(PerlIO_printf(PerlIO_stderr(),
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"perl_destruct: final wait for %d threads\n",
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PL_nthreads - 1));
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COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
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}
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/* At this point, we're the last thread */
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MUTEX_UNLOCK(&PL_threads_mutex);
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DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
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MUTEX_DESTROY(&PL_threads_mutex);
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COND_DESTROY(&PL_nthreads_cond);
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#endif /* !defined(FAKE_THREADS) */
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#endif /* USE_THREADS */
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destruct_level = PL_perl_destruct_level;
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#ifdef DEBUGGING
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{
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char *s;
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if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
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int i = atoi(s);
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if (destruct_level < i)
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destruct_level = i;
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}
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}
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#endif
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LEAVE;
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FREETMPS;
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#ifdef MULTIPLICITY
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--PL_ninterps;
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#endif
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/* We must account for everything. */
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/* Destroy the main CV and syntax tree */
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if (PL_main_root) {
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PL_curpad = AvARRAY(PL_comppad);
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op_free(PL_main_root);
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PL_main_root = Nullop;
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}
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PL_curcop = &PL_compiling;
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PL_main_start = Nullop;
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SvREFCNT_dec(PL_main_cv);
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PL_main_cv = Nullcv;
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if (PL_sv_objcount) {
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/*
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* Try to destruct global references. We do this first so that the
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* destructors and destructees still exist. Some sv's might remain.
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* Non-referenced objects are on their own.
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*/
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PL_dirty = TRUE;
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sv_clean_objs();
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}
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/* unhook hooks which will soon be, or use, destroyed data */
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SvREFCNT_dec(PL_warnhook);
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PL_warnhook = Nullsv;
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SvREFCNT_dec(PL_diehook);
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PL_diehook = Nullsv;
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SvREFCNT_dec(PL_parsehook);
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PL_parsehook = Nullsv;
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/* call exit list functions */
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while (PL_exitlistlen-- > 0)
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PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
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Safefree(PL_exitlist);
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if (destruct_level == 0){
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DEBUG_P(debprofdump());
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/* The exit() function will do everything that needs doing. */
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return;
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}
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/* loosen bonds of global variables */
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if(PL_rsfp) {
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(void)PerlIO_close(PL_rsfp);
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PL_rsfp = Nullfp;
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}
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/* Filters for program text */
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SvREFCNT_dec(PL_rsfp_filters);
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PL_rsfp_filters = Nullav;
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/* switches */
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PL_preprocess = FALSE;
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PL_minus_n = FALSE;
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PL_minus_p = FALSE;
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PL_minus_l = FALSE;
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PL_minus_a = FALSE;
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PL_minus_F = FALSE;
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PL_doswitches = FALSE;
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PL_dowarn = FALSE;
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PL_doextract = FALSE;
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PL_sawampersand = FALSE; /* must save all match strings */
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PL_sawstudy = FALSE; /* do fbm_instr on all strings */
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PL_sawvec = FALSE;
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PL_unsafe = FALSE;
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Safefree(PL_inplace);
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PL_inplace = Nullch;
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if (PL_e_script) {
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SvREFCNT_dec(PL_e_script);
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PL_e_script = Nullsv;
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}
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/* magical thingies */
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Safefree(PL_ofs); /* $, */
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PL_ofs = Nullch;
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Safefree(PL_ors); /* $\ */
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PL_ors = Nullch;
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SvREFCNT_dec(PL_rs); /* $/ */
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PL_rs = Nullsv;
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SvREFCNT_dec(PL_nrs); /* $/ helper */
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PL_nrs = Nullsv;
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PL_multiline = 0; /* $* */
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SvREFCNT_dec(PL_statname);
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PL_statname = Nullsv;
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PL_statgv = Nullgv;
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/* defgv, aka *_ should be taken care of elsewhere */
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/* clean up after study() */
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SvREFCNT_dec(PL_lastscream);
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PL_lastscream = Nullsv;
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Safefree(PL_screamfirst);
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PL_screamfirst = 0;
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Safefree(PL_screamnext);
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PL_screamnext = 0;
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/* startup and shutdown function lists */
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SvREFCNT_dec(PL_beginav);
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SvREFCNT_dec(PL_endav);
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SvREFCNT_dec(PL_initav);
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PL_beginav = Nullav;
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PL_endav = Nullav;
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PL_initav = Nullav;
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/* shortcuts just get cleared */
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PL_envgv = Nullgv;
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PL_siggv = Nullgv;
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PL_incgv = Nullgv;
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PL_hintgv = Nullgv;
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PL_errgv = Nullgv;
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PL_argvgv = Nullgv;
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PL_argvoutgv = Nullgv;
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PL_stdingv = Nullgv;
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PL_last_in_gv = Nullgv;
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PL_replgv = Nullgv;
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/* reset so print() ends up where we expect */
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setdefout(Nullgv);
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/* Prepare to destruct main symbol table. */
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hv = PL_defstash;
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PL_defstash = 0;
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SvREFCNT_dec(hv);
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FREETMPS;
|
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if (destruct_level >= 2) {
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if (PL_scopestack_ix != 0)
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warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
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(long)PL_scopestack_ix);
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if (PL_savestack_ix != 0)
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warn("Unbalanced saves: %ld more saves than restores\n",
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(long)PL_savestack_ix);
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if (PL_tmps_floor != -1)
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warn("Unbalanced tmps: %ld more allocs than frees\n",
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(long)PL_tmps_floor + 1);
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if (cxstack_ix != -1)
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warn("Unbalanced context: %ld more PUSHes than POPs\n",
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(long)cxstack_ix + 1);
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}
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/* Now absolutely destruct everything, somehow or other, loops or no. */
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last_sv_count = 0;
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SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
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while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
|
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last_sv_count = PL_sv_count;
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sv_clean_all();
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}
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SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
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SvFLAGS(PL_strtab) |= SVt_PVHV;
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|
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/* Destruct the global string table. */
|
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{
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/* Yell and reset the HeVAL() slots that are still holding refcounts,
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* so that sv_free() won't fail on them.
|
|
*/
|
|
I32 riter;
|
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I32 max;
|
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HE *hent;
|
|
HE **array;
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|
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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 (defined(BSD) && (BSD >= 199306))
|
|
#ifdef IAMSUID
|
|
{
|
|
struct statfs stfs;
|
|
|
|
if (fstatfs(fileno(PL_rsfp),&stfs) < 0)
|
|
croak("Can't statfs filesystem of script \"%s\"",PL_origfilename);
|
|
|
|
if (stfs.f_flags & MNT_NOSUID)
|
|
croak("Permission denied");
|
|
}
|
|
#endif /* IAMSUID */
|
|
#endif /* BSD */
|
|
|
|
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;
|
|
}
|
|
|
|
|