/* perl.c
*
* Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
- * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+ * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
* by Larry Wall and others
*
* You may distribute under the terms of either the GNU General Public
static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen);
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
-/* Drop everything. Heck, don't even try to call it */
-# define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) NOOP
+# define validate_suid(rsfp) NOOP
#else
-/* Drop almost everything */
-# define validate_suid(validarg, scriptname, fdscript, suidscript, linestr_sv, rsfp) S_validate_suid(aTHX_ rsfp)
+# define validate_suid(rsfp) S_validate_suid(aTHX_ rsfp)
#endif
#define CALL_BODY_SUB(myop) \
#define CALL_LIST_BODY(cv) \
PUSHMARK(PL_stack_sp); \
- call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD);
+ call_sv(MUTABLE_SV((cv)), G_EVAL|G_DISCARD|G_VOID);
static void
S_init_tls_and_interp(PerlInterpreter *my_perl)
ALLOC_THREAD_KEY;
PERL_SET_THX(my_perl);
OP_REFCNT_INIT;
+ OP_CHECK_MUTEX_INIT;
HINTS_REFCNT_INIT;
MUTEX_INIT(&PL_dollarzero_mutex);
MUTEX_INIT(&PL_my_ctx_mutex);
# ifdef DEBUGGING
" DEBUGGING"
# endif
-# ifdef HOMEGROWN_POSIX_SIGNALS
- " HOMEGROWN_POSIX_SIGNALS"
-# endif
# ifdef NO_MATHOMS
" NO_MATHOMS"
# endif
# ifdef PERL_PRESERVE_IVUV
" PERL_PRESERVE_IVUV"
# endif
+# ifdef PERL_RELOCATABLE_INCPUSH
+ " PERL_RELOCATABLE_INCPUSH"
+# endif
# ifdef PERL_USE_DEVEL
" PERL_USE_DEVEL"
# endif
#ifdef USE_SITECUSTOMIZE
bool minus_f = FALSE;
#endif
- SV *linestr_sv = newSV_type(SVt_PVIV);
+ SV *linestr_sv = NULL;
bool add_read_e_script = FALSE;
+ U32 lex_start_flags = 0;
PERL_SET_PHASE(PERL_PHASE_START);
- SvGROW(linestr_sv, 80);
- sv_setpvs(linestr_sv,"");
-
init_main_stash();
{
argc--,argv++;
goto switch_end;
}
- /* catch use of gnu style long options */
- if (strEQ(s, "version")) {
- s = (char *)"v";
- goto reswitch;
- }
- if (strEQ(s, "help")) {
- s = (char *)"h";
- goto reswitch;
- }
+ /* catch use of gnu style long options.
+ Both of these exit immediately. */
+ if (strEQ(s, "version"))
+ minus_v();
+ if (strEQ(s, "help"))
+ usage();
s--;
/* FALL THROUGH */
default:
{
bool suidscript = FALSE;
- open_script(scriptname, dosearch, &suidscript, &rsfp);
+ rsfp = open_script(scriptname, dosearch, &suidscript);
+ if (!rsfp) {
+ rsfp = PerlIO_stdin();
+ lex_start_flags = LEX_DONT_CLOSE_RSFP;
+ }
- validate_suid(validarg, scriptname, fdscript, suidscript,
- linestr_sv, rsfp);
+ validate_suid(rsfp);
#ifndef PERL_MICRO
# if defined(SIGCHLD) || defined(SIGCLD)
forbid_setid('x', suidscript);
/* Hence you can't get here if suidscript is true */
+ linestr_sv = newSV_type(SVt_PV);
+ lex_start_flags |= LEX_START_COPIED;
find_beginning(linestr_sv, rsfp);
if (cddir && PerlDir_chdir( (char *)cddir ) < 0)
Perl_croak(aTHX_ "Can't chdir to %s",cddir);
}
#endif
- lex_start(linestr_sv, rsfp, 0);
+ lex_start(linestr_sv, rsfp, lex_start_flags);
+ if(linestr_sv)
+ SvREFCNT_dec(linestr_sv);
+
PL_subname = newSVpvs("main");
if (add_read_e_script)
POPSTACK_TO(PL_mainstack);
goto redo_body;
}
- PerlIO_printf(Perl_error_log, "panic: restartop\n");
+ PerlIO_printf(Perl_error_log, "panic: restartop in perl_run\n");
FREETMPS;
ret = 1;
break;
}
STATIC void
-S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */
+S_usage(pTHX) /* XXX move this out into a module ? */
{
/* This message really ought to be max 23 lines.
* Removed -h because the user already knows that option. Others? */
const char * const *p = usage_msg;
PerlIO *out = PerlIO_stdout();
- PERL_ARGS_ASSERT_USAGE;
-
PerlIO_printf(out,
"\nUsage: %s [switches] [--] [programfile] [arguments]\n",
- name);
+ PL_origargv[0]);
while (*p)
PerlIO_puts(out, *p++);
+ my_exit(0);
}
/* convert a string of -D options (or digits) into an int.
return s;
}
case 'h':
- usage(PL_origargv[0]);
- my_exit(0);
+ usage();
case 'i':
Safefree(PL_inplace);
#if defined(__CYGWIN__) /* do backup extension automagically */
s++;
return s;
case 'v':
+ minus_v();
+ case 'w':
+ if (! (PL_dowarn & G_WARN_ALL_MASK)) {
+ PL_dowarn |= G_WARN_ON;
+ }
+ s++;
+ return s;
+ case 'W':
+ PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
+ if (!specialWARN(PL_compiling.cop_warnings))
+ PerlMemShared_free(PL_compiling.cop_warnings);
+ PL_compiling.cop_warnings = pWARN_ALL ;
+ s++;
+ return s;
+ case 'X':
+ PL_dowarn = G_WARN_ALL_OFF;
+ if (!specialWARN(PL_compiling.cop_warnings))
+ PerlMemShared_free(PL_compiling.cop_warnings);
+ PL_compiling.cop_warnings = pWARN_NONE ;
+ s++;
+ return s;
+ case '*':
+ case ' ':
+ while( *s == ' ' )
+ ++s;
+ if (s[0] == '-') /* Additional switches on #! line. */
+ return s+1;
+ break;
+ case '-':
+ case 0:
+#if defined(WIN32) || !defined(PERL_STRICT_CR)
+ case '\r':
+#endif
+ case '\n':
+ case '\t':
+ break;
+#ifdef ALTERNATE_SHEBANG
+ case 'S': /* OS/2 needs -S on "extproc" line. */
+ break;
+#endif
+ case 'e': case 'f': case 'x': case 'E':
+#ifndef ALTERNATE_SHEBANG
+ case 'S':
+#endif
+ case 'V':
+ Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
+ default:
+ Perl_croak(aTHX_
+ "Unrecognized switch: -%.1s (-h will show valid options)",s
+ );
+ }
+ return NULL;
+}
+
+
+STATIC void
+S_minus_v(pTHX)
+{
if (!sv_derived_from(PL_patchlevel, "version"))
upg_version(PL_patchlevel, TRUE);
#if !defined(DGUX)
#endif
PerlIO_printf(PerlIO_stdout(),
- "\n\nCopyright 1987-2011, Larry Wall\n");
+ "\n\nCopyright 1987-2012, Larry Wall\n");
#ifdef MSDOS
PerlIO_printf(PerlIO_stdout(),
"\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\
Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n");
my_exit(0);
- case 'w':
- if (! (PL_dowarn & G_WARN_ALL_MASK)) {
- PL_dowarn |= G_WARN_ON;
- }
- s++;
- return s;
- case 'W':
- PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
- if (!specialWARN(PL_compiling.cop_warnings))
- PerlMemShared_free(PL_compiling.cop_warnings);
- PL_compiling.cop_warnings = pWARN_ALL ;
- s++;
- return s;
- case 'X':
- PL_dowarn = G_WARN_ALL_OFF;
- if (!specialWARN(PL_compiling.cop_warnings))
- PerlMemShared_free(PL_compiling.cop_warnings);
- PL_compiling.cop_warnings = pWARN_NONE ;
- s++;
- return s;
- case '*':
- case ' ':
- while( *s == ' ' )
- ++s;
- if (s[0] == '-') /* Additional switches on #! line. */
- return s+1;
- break;
- case '-':
- case 0:
-#if defined(WIN32) || !defined(PERL_STRICT_CR)
- case '\r':
-#endif
- case '\n':
- case '\t':
- break;
-#ifdef ALTERNATE_SHEBANG
- case 'S': /* OS/2 needs -S on "extproc" line. */
- break;
-#endif
- default:
- Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
- }
- return NULL;
}
/* compliments of Tom Christiansen */
sv_setpvs(get_sv("/", GV_ADD), "\n");
}
-STATIC int
-S_open_script(pTHX_ const char *scriptname, bool dosearch,
- bool *suidscript, PerlIO **rsfpp)
+STATIC PerlIO *
+S_open_script(pTHX_ const char *scriptname, bool dosearch, bool *suidscript)
{
int fdscript = -1;
+ PerlIO *rsfp = NULL;
dVAR;
PERL_ARGS_ASSERT_OPEN_SCRIPT;
if (*PL_origfilename == '-' && PL_origfilename[1] == '\0')
scriptname = (char *)"";
if (fdscript >= 0) {
- *rsfpp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE);
-# if defined(HAS_FCNTL) && defined(F_SETFD)
- if (*rsfpp)
- /* ensure close-on-exec */
- fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1);
-# endif
+ rsfp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE);
}
else if (!*scriptname) {
forbid_setid(0, *suidscript);
- *rsfpp = PerlIO_stdin();
+ return NULL;
}
else {
#ifdef FAKE_BIT_BUCKET
#endif
}
#endif
- *rsfpp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
+ rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
#ifdef FAKE_BIT_BUCKET
if (memEQ(scriptname, FAKE_BIT_BUCKET_PREFIX,
sizeof(FAKE_BIT_BUCKET_PREFIX) - 1)
}
scriptname = BIT_BUCKET;
#endif
-# if defined(HAS_FCNTL) && defined(F_SETFD)
- if (*rsfpp)
- /* ensure close-on-exec */
- fcntl(PerlIO_fileno(*rsfpp),F_SETFD,1);
-# endif
}
- if (!*rsfpp) {
+ if (!rsfp) {
/* PSz 16 Sep 03 Keep neat error message */
if (PL_e_script)
Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno));
Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
CopFILE(PL_curcop), Strerror(errno));
}
- return fdscript;
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ /* ensure close-on-exec */
+ fcntl(PerlIO_fileno(rsfp), F_SETFD, 1);
+#endif
+ return rsfp;
}
/* Mention
STATIC void
S_validate_suid(pTHX_ PerlIO *rsfp)
{
+ const UV my_uid = PerlProc_getuid();
+ const UV my_euid = PerlProc_geteuid();
+ const UV my_gid = PerlProc_getgid();
+ const UV my_egid = PerlProc_getegid();
+
PERL_ARGS_ASSERT_VALIDATE_SUID;
- if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
+ if (my_euid != my_uid || my_egid != my_gid) { /* (suidperl doesn't exist, in fact) */
dVAR;
PerlLIO_fstat(PerlIO_fileno(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)
+ if ((my_euid != my_uid && my_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)
+ (my_egid != my_gid && my_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
)
if (!PL_do_undump)
Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
S_init_ids(pTHX)
{
dVAR;
- PL_uid = PerlProc_getuid();
- PL_euid = PerlProc_geteuid();
- PL_gid = PerlProc_getgid();
- PL_egid = PerlProc_getegid();
-#ifdef VMS
- PL_uid |= PL_gid << 16;
- PL_euid |= PL_egid << 16;
-#endif
+ const UV my_uid = PerlProc_getuid();
+ const UV my_euid = PerlProc_geteuid();
+ const UV my_gid = PerlProc_getgid();
+ const UV my_egid = PerlProc_getegid();
+
/* Should not happen: */
- CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
- PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
+ CHECK_MALLOC_TAINT(my_uid && (my_euid != my_uid || my_egid != my_gid));
+ PL_tainting |= (my_uid && (my_euid != my_uid || my_egid != my_gid));
/* BUG */
/* PSz 27 Feb 04
* Should go by suidscript, not uid!=euid: why disallow
}
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
- if (PL_euid != PL_uid)
+ if (PerlProc_getuid() != PerlProc_geteuid())
Perl_croak(aTHX_ "No %s allowed while running setuid", message);
- if (PL_egid != PL_gid)
+ if (PerlProc_getgid() != PerlProc_getegid())
Perl_croak(aTHX_ "No %s allowed while running setgid", message);
#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
if (suidscript)
It might have entries, and if we just turn off AvREAL(), they will
"leak" until global destruction. */
av_clear(args);
+ if (SvTIED_mg((const SV *)args, PERL_MAGIC_tied))
+ Perl_croak(aTHX_ "Cannot set tied @DB::args");
}
AvREIFY_only(PL_dbargs);
}
GvMULTI_on(tmpgv);
GvIOp(tmpgv) = MUTABLE_IO(SvREFCNT_inc_simple(io));
- PL_statname = newSV(0); /* last filename we did stat on */
+ PL_statname = newSVpvs(""); /* last filename we did stat on */
}
void
#endif /* !PERL_MICRO */
}
TAINT_NOT;
-#ifdef THREADS_HAVE_PIDS
- PL_ppid = (IV)getppid();
-#endif
/* touch @F array to prevent spurious warnings 20020415 MJD */
if (PL_minus_a) {
#ifdef VMS
{
char *unix;
- STRLEN len;
if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) {
len = strlen(unix);
else
PerlIO_printf(Perl_error_log,
"Failed to unixify @INC element \"%s\"\n",
- SvPV(libdir,len));
+ SvPV_nolen_const(libdir));
}
#endif
/* And this is the new libdir. */
libdir = tempsv;
if (PL_tainting &&
- (PL_uid != PL_euid || PL_gid != PL_egid)) {
+ (PerlProc_getuid() != PerlProc_geteuid() ||
+ PerlProc_getgid() != PerlProc_getegid())) {
/* Need to taint relocated paths if running set ID */
SvTAINTED_on(libdir);
}
CopLINE_set(PL_curcop, oldline);
JMPENV_JUMP(3);
}
- PerlIO_printf(Perl_error_log, "panic: restartop\n");
+ PerlIO_printf(Perl_error_log, "panic: restartop in call_list\n");
FREETMPS;
break;
}
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