/* perl.c * * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others * * You may distribute under the terms of either the GNU General Public * License or the Artistic License, as specified in the README file. * */ /* * "A ship then new they built for him/of mithril and of elven glass" --Bilbo */ /* This file contains the top-level functions that are used to create, use * and destroy a perl interpreter, plus the functions used by XS code to * call back into perl. Note that it does not contain the actual main() * function of the interpreter; that can be found in perlmain.c */ /* PSz 12 Nov 03 * * Be proud that perl(1) may proclaim: * Setuid Perl scripts are safer than C programs ... * Do not abandon (deprecate) suidperl. Do not advocate C wrappers. * * The flow was: perl starts, notices script is suid, execs suidperl with same * arguments; suidperl opens script, checks many things, sets itself with * right UID, execs perl with similar arguments but with script pre-opened on * /dev/fd/xxx; perl checks script is as should be and does work. This was * insecure: see perlsec(1) for many problems with this approach. * * The "correct" flow should be: perl starts, opens script and notices it is * suid, checks many things, execs suidperl with similar arguments but with * script on /dev/fd/xxx; suidperl checks script and /dev/fd/xxx object are * same, checks arguments match #! line, sets itself with right UID, execs * perl with same arguments; perl checks many things and does work. * * (Opening the script in perl instead of suidperl, we "lose" scripts that * are readable to the target UID but not to the invoker. Where did * unreadable scripts work anyway?) * * For now, suidperl and perl are pretty much the same large and cumbersome * program, so suidperl can check its argument list (see comments elsewhere). * * References: * Original bug report: * http://bugs.perl.org/index.html?req=bug_id&bug_id=20010322.218 * http://rt.perl.org/rt2/Ticket/Display.html?id=6511 * Comments and discussion with Debian: * http://bugs.debian.org/203426 * http://bugs.debian.org/220486 * Debian Security Advisory DSA 431-1 (does not fully fix problem): * http://www.debian.org/security/2004/dsa-431 * CVE candidate: * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0618 * Previous versions of this patch sent to perl5-porters: * http://www.mail-archive.com/perl5-porters@perl.org/msg71953.html * http://www.mail-archive.com/perl5-porters@perl.org/msg75245.html * http://www.mail-archive.com/perl5-porters@perl.org/msg75563.html * http://www.mail-archive.com/perl5-porters@perl.org/msg75635.html * Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/ School of Mathematics and Statistics University of Sydney 2006 Australia * */ /* PSz 13 Nov 03 * Use truthful, neat, specific error messages. * Cannot always hide the truth; security must not depend on doing so. */ /* PSz 18 Feb 04 * Use global(?), thread-local fdscript for easier checks. * (I do not understand how we could possibly get a thread race: * do not all threads go through the same initialization? Or in * fact, are not threads started only after we get the script and * so know what to do? Oh well, make things super-safe...) */ #include "EXTERN.h" #define PERL_IN_PERL_C #include "perl.h" #include "patchlevel.h" /* for local_patches */ #ifdef NETWARE #include "nwutil.h" char *nw_get_sitelib(const char *pl); #endif /* XXX If this causes problems, set i_unistd=undef in the hint file. */ #ifdef I_UNISTD #include #endif #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP # ifdef I_SYS_WAIT # include # endif # ifdef I_SYSUIO # include # endif union control_un { struct cmsghdr cm; char control[CMSG_SPACE(sizeof(int))]; }; #endif #ifdef __BEOS__ # define HZ 1000000 #endif #ifndef HZ # ifdef CLK_TCK # define HZ CLK_TCK # else # define HZ 60 # endif #endif #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) char *getenv (char *); /* Usually in */ #endif static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); #ifdef IAMSUID #ifndef DOSUID #define DOSUID #endif #endif /* IAMSUID */ #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW #ifdef DOSUID #undef DOSUID #endif #endif static void S_init_tls_and_interp(PerlInterpreter *my_perl) 4503 { dVAR; 4503 if (!PL_curinterp) { 4503 PERL_SET_INTERP(my_perl); #if defined(USE_ITHREADS) INIT_THREADS; ALLOC_THREAD_KEY; PERL_SET_THX(my_perl); OP_REFCNT_INIT; MUTEX_INIT(&PL_dollarzero_mutex); # endif } else { 4503 PERL_SET_THX(my_perl); } } #ifdef PERL_IMPLICIT_SYS PerlInterpreter * perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, struct IPerlMem* ipMP, struct IPerlEnv* ipE, struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, struct IPerlDir* ipD, struct IPerlSock* ipS, struct IPerlProc* ipP) { PerlInterpreter *my_perl; /* New() needs interpreter, so call malloc() instead */ my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); S_init_tls_and_interp(my_perl); Zero(my_perl, 1, PerlInterpreter); PL_Mem = ipM; PL_MemShared = ipMS; PL_MemParse = ipMP; PL_Env = ipE; PL_StdIO = ipStd; PL_LIO = ipLIO; PL_Dir = ipD; PL_Sock = ipS; PL_Proc = ipP; return my_perl; } #else /* =head1 Embedding Functions =for apidoc perl_alloc Allocates a new Perl interpreter. See L. =cut */ PerlInterpreter * perl_alloc(void) 4503 { 4503 PerlInterpreter *my_perl; /* New() needs interpreter, so call malloc() instead */ 4503 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); 4503 S_init_tls_and_interp(my_perl); 4503 return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); } #endif /* PERL_IMPLICIT_SYS */ /* =for apidoc perl_construct Initializes a new Perl interpreter. See L. =cut */ void perl_construct(pTHXx) 4503 { dVAR; 4503 PERL_UNUSED_ARG(my_perl); #ifdef MULTIPLICITY init_interp(); PL_perl_destruct_level = 1; #else 4503 if (PL_perl_destruct_level > 0) ###### init_interp(); #endif /* Init the real globals (and main thread)? */ 4503 if (!PL_linestr) { 4503 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ 4503 PL_linestr = NEWSV(65,79); 4503 sv_upgrade(PL_linestr,SVt_PVIV); 4503 if (!SvREADONLY(&PL_sv_undef)) { /* set read-only and try to insure than we wont see REFCNT==0 very often */ 4503 SvREADONLY_on(&PL_sv_undef); 4503 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; 4503 sv_setpv(&PL_sv_no,PL_No); /* value lookup in void context - happens to have the side effect of caching the numeric forms. */ 4503 SvIV(&PL_sv_no); 4503 SvNV(&PL_sv_no); 4503 SvREADONLY_on(&PL_sv_no); 4503 SvREFCNT(&PL_sv_no) = (~(U32)0)/2; 4503 sv_setpv(&PL_sv_yes,PL_Yes); 4503 SvIV(&PL_sv_yes); 4503 SvNV(&PL_sv_yes); 4503 SvREADONLY_on(&PL_sv_yes); 4503 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; 4503 SvREADONLY_on(&PL_sv_placeholder); 4503 SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; } 4503 PL_sighandlerp = Perl_sighandler; 4503 PL_pidstatus = newHV(); } 4503 PL_rs = newSVpvn("\n", 1); 4503 init_stacks(); 4503 init_ids(); 4503 PL_lex_state = LEX_NOTPARSING; 4503 JMPENV_BOOTSTRAP; 4503 STATUS_ALL_SUCCESS; 4503 init_i18nl10n(1); 4503 SET_NUMERIC_STANDARD(); #if defined(LOCAL_PATCH_COUNT) 4503 PL_localpatches = local_patches; /* For possible -v */ #endif #ifdef HAVE_INTERP_INTERN sys_intern_init(); #endif 4503 PerlIO_init(aTHX); /* Hook to IO system */ 4503 PL_fdpid = newAV(); /* for remembering popen pids by fd */ 4503 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ 4503 PL_errors = newSVpvn("",0); 4503 sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ 4503 sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ 4503 sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ #ifdef USE_ITHREADS PL_regex_padav = newAV(); av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ PL_regex_pad = AvARRAY(PL_regex_padav); #endif #ifdef USE_REENTRANT_API Perl_reentrant_init(aTHX); #endif /* 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() */ 4503 PL_strtab = newHV(); 4503 HvSHAREKEYS_off(PL_strtab); /* mandatory */ 4503 hv_ksplit(PL_strtab, 512); #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) _dyld_lookup_and_bind ("__environ", (unsigned long *) &environ_pointer, NULL); #endif /* environ */ #ifndef PERL_MICRO # ifdef USE_ENVIRON_ARRAY 4503 PL_origenviron = environ; # endif #endif /* Use sysconf(_SC_CLK_TCK) if available, if not * available or if the sysconf() fails, use the HZ. * BeOS has those, but returns the wrong value. * The HZ if not originally defined has been by now * been defined as CLK_TCK, if available. */ #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) 4503 PL_clocktick = sysconf(_SC_CLK_TCK); 4503 if (PL_clocktick <= 0) #endif ###### PL_clocktick = HZ; 4503 PL_stashcache = newHV(); 4503 PL_patchlevel = Perl_newSVpvf(aTHX_ "%d.%d.%d", (int)PERL_REVISION, (int)PERL_VERSION, (int)PERL_SUBVERSION); #ifdef HAS_MMAP 4503 if (!PL_mmap_page_size) { #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) { 4503 SETERRNO(0, SS_NORMAL); # ifdef _SC_PAGESIZE 4503 PL_mmap_page_size = sysconf(_SC_PAGESIZE); # else PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); # endif 4503 if ((long) PL_mmap_page_size < 0) { ###### if (errno) { ###### SV *error = ERRSV; ###### (void) SvUPGRADE(error, SVt_PV); ###### Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); } else ###### Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); } } #else # ifdef HAS_GETPAGESIZE PL_mmap_page_size = getpagesize(); # else # if defined(I_SYS_PARAM) && defined(PAGESIZE) PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ # endif # endif #endif 4503 if (PL_mmap_page_size <= 0) ###### Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, (IV) PL_mmap_page_size); } #endif /* HAS_MMAP */ #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) PL_timesbase.tms_utime = 0; PL_timesbase.tms_stime = 0; PL_timesbase.tms_cutime = 0; PL_timesbase.tms_cstime = 0; #endif 4503 ENTER; } /* =for apidoc nothreadhook Stub that provides thread hook for perl_destruct when there are no threads. =cut */ int Perl_nothreadhook(pTHX) 4549 { 4549 return 0; } #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP void Perl_dump_sv_child(pTHX_ SV *sv) { ssize_t got; const int sock = PL_dumper_fd; const int debug_fd = PerlIO_fileno(Perl_debug_log); union control_un control; struct msghdr msg; struct iovec vec[2]; struct cmsghdr *cmptr; int returned_errno; unsigned char buffer[256]; if(sock == -1 || debug_fd == -1) return; PerlIO_flush(Perl_debug_log); /* All these shenanigans are to pass a file descriptor over to our child for it to dump out to. We can't let it hold open the file descriptor when it forks, as the file descriptor it will dump to can turn out to be one end of pipe that some other process will wait on for EOF. (So as it would be open, the wait would be forever. */ msg.msg_control = control.control; msg.msg_controllen = sizeof(control.control); /* We're a connected socket so we don't need a destination */ msg.msg_name = NULL; msg.msg_namelen = 0; msg.msg_iov = vec; msg.msg_iovlen = 1; cmptr = CMSG_FIRSTHDR(&msg); cmptr->cmsg_len = CMSG_LEN(sizeof(int)); cmptr->cmsg_level = SOL_SOCKET; cmptr->cmsg_type = SCM_RIGHTS; *((int *)CMSG_DATA(cmptr)) = 1; vec[0].iov_base = (void*)&sv; vec[0].iov_len = sizeof(sv); got = sendmsg(sock, &msg, 0); if(got < 0) { perror("Debug leaking scalars parent sendmsg failed"); abort(); } if(got < sizeof(sv)) { perror("Debug leaking scalars parent short sendmsg"); abort(); } /* Return protocol is int: errno value unsigned char: length of location string (0 for empty) unsigned char*: string (not terminated) */ vec[0].iov_base = (void*)&returned_errno; vec[0].iov_len = sizeof(returned_errno); vec[1].iov_base = buffer; vec[1].iov_len = 1; got = readv(sock, vec, 2); if(got < 0) { perror("Debug leaking scalars parent read failed"); PerlIO_flush(PerlIO_stderr()); abort(); } if(got < sizeof(returned_errno) + 1) { perror("Debug leaking scalars parent short read"); PerlIO_flush(PerlIO_stderr()); abort(); } if (*buffer) { got = read(sock, buffer + 1, *buffer); if(got < 0) { perror("Debug leaking scalars parent read 2 failed"); PerlIO_flush(PerlIO_stderr()); abort(); } if(got < *buffer) { perror("Debug leaking scalars parent short read 2"); PerlIO_flush(PerlIO_stderr()); abort(); } } if (returned_errno || *buffer) { Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, returned_errno, strerror(returned_errno)); } } #endif /* =for apidoc perl_destruct Shuts down a Perl interpreter. See L. =cut */ int perl_destruct(pTHXx) 4549 { dVAR; 4549 volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */ 4549 HV *hv; #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP pid_t child; #endif 4549 PERL_UNUSED_ARG(my_perl); /* wait for all pseudo-forked children to finish */ 4549 PERL_WAIT_FOR_CHILDREN; 4549 destruct_level = PL_perl_destruct_level; #ifdef DEBUGGING { 4549 const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); 4549 if (s) { 4549 const int i = atoi(s); 4549 if (destruct_level < i) 4549 destruct_level = i; } } #endif 4549 if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { 4548 dJMPENV; 4548 int x = 0; 4548 JMPENV_PUSH(x); 4557 PERL_UNUSED_VAR(x); 4557 if (PL_endav && !PL_minus_c) 749 call_list(PL_scopestack_ix, PL_endav); 4548 JMPENV_POP; } 4549 LEAVE; 4549 FREETMPS; /* Need to flush since END blocks can produce output */ 4549 my_fflush_all(); 4549 if (CALL_FPTR(PL_threadhook)(aTHX)) { /* Threads hook has vetoed further cleanup */ ###### return STATUS_NATIVE_EXPORT; } #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP if (destruct_level != 0) { /* Fork here to create a child. Our child's job is to preserve the state of scalars prior to destruction, so that we can instruct it to dump any scalars that we later find have leaked. There's no subtlety in this code - it assumes POSIX, and it doesn't fail gracefully */ int fd[2]; if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { perror("Debug leaking scalars socketpair failed"); abort(); } child = fork(); if(child == -1) { perror("Debug leaking scalars fork failed"); abort(); } if (!child) { /* We are the child */ const int sock = fd[1]; const int debug_fd = PerlIO_fileno(Perl_debug_log); int f; const char *where; /* Our success message is an integer 0, and a char 0 */ static const char success[sizeof(int) + 1]; close(fd[0]); /* We need to close all other file descriptors otherwise we end up with interesting hangs, where the parent closes its end of a pipe, and sits waiting for (another) child to terminate. Only that child never terminates, because it never gets EOF, because we also have the far end of the pipe open. We even need to close the debugging fd, because sometimes it happens to be one end of a pipe, and a process is waiting on the other end for EOF. Normally it would be closed at some point earlier in destruction, but if we happen to cause the pipe to remain open, EOF never occurs, and we get an infinite hang. Hence all the games to pass in a file descriptor if it's actually needed. */ f = sysconf(_SC_OPEN_MAX); if(f < 0) { where = "sysconf failed"; goto abort; } while (f--) { if (f == sock) continue; close(f); } while (1) { SV *target; union control_un control; struct msghdr msg; struct iovec vec[1]; struct cmsghdr *cmptr; ssize_t got; int got_fd; msg.msg_control = control.control; msg.msg_controllen = sizeof(control.control); /* We're a connected socket so we don't need a source */ msg.msg_name = NULL; msg.msg_namelen = 0; msg.msg_iov = vec; msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); vec[0].iov_base = (void*)⌖ vec[0].iov_len = sizeof(target); got = recvmsg(sock, &msg, 0); if(got == 0) break; if(got < 0) { where = "recv failed"; goto abort; } if(got < sizeof(target)) { where = "short recv"; goto abort; } if(!(cmptr = CMSG_FIRSTHDR(&msg))) { where = "no cmsg"; goto abort; } if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { where = "wrong cmsg_len"; goto abort; } if(cmptr->cmsg_level != SOL_SOCKET) { where = "wrong cmsg_level"; goto abort; } if(cmptr->cmsg_type != SCM_RIGHTS) { where = "wrong cmsg_type"; goto abort; } got_fd = *(int*)CMSG_DATA(cmptr); /* For our last little bit of trickery, put the file descriptor back into Perl_debug_log, as if we never actually closed it */ if(got_fd != debug_fd) { if (dup2(got_fd, debug_fd) == -1) { where = "dup2"; goto abort; } } sv_dump(target); PerlIO_flush(Perl_debug_log); got = write(sock, &success, sizeof(success)); if(got < 0) { where = "write failed"; goto abort; } if(got < sizeof(success)) { where = "short write"; goto abort; } } _exit(0); abort: { int send_errno = errno; unsigned char length = (unsigned char) strlen(where); struct iovec failure[3] = { {(void*)&send_errno, sizeof(send_errno)}, {&length, 1}, {(void*)where, length} }; int got = writev(sock, failure, 3); /* Bad news travels fast. Faster than data. We'll get a SIGPIPE in the parent if we try to read from the socketpair after the child has exited, even if there was data to read. So sleep a bit to give the parent a fighting chance of reading the data. */ sleep(2); _exit((got == -1) ? errno : 0); } /* End of child. */ } PL_dumper_fd = fd[0]; close(fd[1]); } #endif /* We must account for everything. */ /* Destroy the main CV and syntax tree */ /* Do this now, because destroying ops can cause new SVs to be generated in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they PL_curcop to point to a valid op from which the filename structure member is copied. */ 4549 PL_curcop = &PL_compiling; 4549 if (PL_main_root) { /* ensure comppad/curpad to refer to main's pad */ 4425 if (CvPADLIST(PL_main_cv)) { 4425 PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); } 4425 op_free(PL_main_root); 4425 PL_main_root = Nullop; } 4549 PL_main_start = Nullop; 4549 SvREFCNT_dec(PL_main_cv); 4549 PL_main_cv = Nullcv; 4549 PL_dirty = TRUE; /* Tell PerlIO we are about to tear things apart in case we have layers which are using resources that should be cleaned up now. */ 4549 PerlIO_destruct(aTHX); 4549 if (PL_sv_objcount) { /* * Try to destruct global references. We do this first so that the * destructors and destructees still exist. Some sv's might remain. * Non-referenced objects are on their own. */ 2213 sv_clean_objs(); 2213 PL_sv_objcount = 0; } /* unhook hooks which will soon be, or use, destroyed data */ 4549 SvREFCNT_dec(PL_warnhook); 4549 PL_warnhook = Nullsv; 4549 SvREFCNT_dec(PL_diehook); 4549 PL_diehook = Nullsv; /* call exit list functions */ 4549 while (PL_exitlistlen-- > 0) ###### PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); 4549 Safefree(PL_exitlist); 4549 PL_exitlist = NULL; 4549 PL_exitlistlen = 0; 4549 if (destruct_level == 0){ ###### DEBUG_P(debprofdump()); #if defined(PERLIO_LAYERS) /* No more IO - including error messages ! */ ###### PerlIO_cleanup(aTHX); #endif /* The exit() function will do everything that needs doing. */ ###### return STATUS_NATIVE_EXPORT; } /* jettison our possibly duplicated environment */ /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied * so we certainly shouldn't free it here */ #ifndef PERL_MICRO #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) 4549 if (environ != PL_origenviron && !PL_use_safe_putenv #ifdef USE_ITHREADS /* only main thread can free environ[0] contents */ && PL_curinterp == aTHX #endif ) { 4548 I32 i; 221792 for (i = 0; environ[i]; i++) 217244 safesysfree(environ[i]); /* Must use safesysfree() when working with environ. */ 4548 safesysfree(environ); 4548 environ = PL_origenviron; } #endif #endif /* !PERL_MICRO */ /* reset so print() ends up where we expect */ 4549 setdefout(Nullgv); #ifdef USE_ITHREADS /* the syntax tree is shared between clones * so op_free(PL_main_root) only ReREFCNT_dec's * REGEXPs in the parent interpreter * we need to manually ReREFCNT_dec for the clones */ { I32 i = AvFILLp(PL_regex_padav) + 1; SV **ary = AvARRAY(PL_regex_padav); while (i) { SV *resv = ary[--i]; if (SvFLAGS(resv) & SVf_BREAK) { /* this is PL_reg_curpm, already freed * flag is set in regexec.c:S_regtry */ SvFLAGS(resv) &= ~SVf_BREAK; } else if(SvREPADTMP(resv)) { SvREPADTMP_off(resv); } else if(SvIOKp(resv)) { REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); ReREFCNT_dec(re); } } } SvREFCNT_dec(PL_regex_padav); PL_regex_padav = Nullav; PL_regex_pad = NULL; #endif 4549 SvREFCNT_dec((SV*) PL_stashcache); 4549 PL_stashcache = NULL; /* loosen bonds of global variables */ 4549 if(PL_rsfp) { ###### (void)PerlIO_close(PL_rsfp); ###### PL_rsfp = Nullfp; } /* Filters for program text */ 4549 SvREFCNT_dec(PL_rsfp_filters); 4549 PL_rsfp_filters = Nullav; /* switches */ 4549 PL_preprocess = FALSE; 4549 PL_minus_n = FALSE; 4549 PL_minus_p = FALSE; 4549 PL_minus_l = FALSE; 4549 PL_minus_a = FALSE; 4549 PL_minus_F = FALSE; 4549 PL_doswitches = FALSE; 4549 PL_dowarn = G_WARN_OFF; 4549 PL_doextract = FALSE; 4549 PL_sawampersand = FALSE; /* must save all match strings */ 4549 PL_unsafe = FALSE; 4549 Safefree(PL_inplace); 4549 PL_inplace = Nullch; 4549 SvREFCNT_dec(PL_patchlevel); 4549 if (PL_e_script) { ###### SvREFCNT_dec(PL_e_script); ###### PL_e_script = Nullsv; } 4549 PL_perldb = 0; /* magical thingies */ 4549 SvREFCNT_dec(PL_ofs_sv); /* $, */ 4549 PL_ofs_sv = Nullsv; 4549 SvREFCNT_dec(PL_ors_sv); /* $\ */ 4549 PL_ors_sv = Nullsv; 4549 SvREFCNT_dec(PL_rs); /* $/ */ 4549 PL_rs = Nullsv; 4549 PL_multiline = 0; /* $* */ 4549 Safefree(PL_osname); /* $^O */ 4549 PL_osname = Nullch; 4549 SvREFCNT_dec(PL_statname); 4549 PL_statname = Nullsv; 4549 PL_statgv = Nullgv; /* defgv, aka *_ should be taken care of elsewhere */ /* clean up after study() */ 4549 SvREFCNT_dec(PL_lastscream); 4549 PL_lastscream = Nullsv; 4549 Safefree(PL_screamfirst); 4549 PL_screamfirst = 0; 4549 Safefree(PL_screamnext); 4549 PL_screamnext = 0; /* float buffer */ 4549 Safefree(PL_efloatbuf); 4549 PL_efloatbuf = Nullch; 4549 PL_efloatsize = 0; /* startup and shutdown function lists */ 4549 SvREFCNT_dec(PL_beginav); 4549 SvREFCNT_dec(PL_beginav_save); 4549 SvREFCNT_dec(PL_endav); 4549 SvREFCNT_dec(PL_checkav); 4549 SvREFCNT_dec(PL_checkav_save); 4549 SvREFCNT_dec(PL_initav); 4549 PL_beginav = Nullav; 4549 PL_beginav_save = Nullav; 4549 PL_endav = Nullav; 4549 PL_checkav = Nullav; 4549 PL_checkav_save = Nullav; 4549 PL_initav = Nullav; /* shortcuts just get cleared */ 4549 PL_envgv = Nullgv; 4549 PL_incgv = Nullgv; 4549 PL_hintgv = Nullgv; 4549 PL_errgv = Nullgv; 4549 PL_argvgv = Nullgv; 4549 PL_argvoutgv = Nullgv; 4549 PL_stdingv = Nullgv; 4549 PL_stderrgv = Nullgv; 4549 PL_last_in_gv = Nullgv; 4549 PL_replgv = Nullgv; 4549 PL_DBgv = Nullgv; 4549 PL_DBline = Nullgv; 4549 PL_DBsub = Nullgv; 4549 PL_DBsingle = Nullsv; 4549 PL_DBtrace = Nullsv; 4549 PL_DBsignal = Nullsv; 4549 PL_DBassertion = Nullsv; 4549 PL_DBcv = Nullcv; 4549 PL_dbargs = Nullav; 4549 PL_debstash = Nullhv; 4549 SvREFCNT_dec(PL_argvout_stack); 4549 PL_argvout_stack = Nullav; 4549 SvREFCNT_dec(PL_modglobal); 4549 PL_modglobal = Nullhv; 4549 SvREFCNT_dec(PL_preambleav); 4549 PL_preambleav = Nullav; 4549 SvREFCNT_dec(PL_subname); 4549 PL_subname = Nullsv; 4549 SvREFCNT_dec(PL_linestr); 4549 PL_linestr = Nullsv; 4549 SvREFCNT_dec(PL_pidstatus); 4549 PL_pidstatus = Nullhv; 4549 SvREFCNT_dec(PL_toptarget); 4549 PL_toptarget = Nullsv; 4549 SvREFCNT_dec(PL_bodytarget); 4549 PL_bodytarget = Nullsv; 4549 PL_formtarget = Nullsv; /* free locale stuff */ #ifdef USE_LOCALE_COLLATE 4549 Safefree(PL_collation_name); 4549 PL_collation_name = Nullch; #endif #ifdef USE_LOCALE_NUMERIC 4549 Safefree(PL_numeric_name); 4549 PL_numeric_name = Nullch; 4549 SvREFCNT_dec(PL_numeric_radix_sv); 4549 PL_numeric_radix_sv = Nullsv; #endif /* clear utf8 character classes */ 4549 SvREFCNT_dec(PL_utf8_alnum); 4549 SvREFCNT_dec(PL_utf8_alnumc); 4549 SvREFCNT_dec(PL_utf8_ascii); 4549 SvREFCNT_dec(PL_utf8_alpha); 4549 SvREFCNT_dec(PL_utf8_space); 4549 SvREFCNT_dec(PL_utf8_cntrl); 4549 SvREFCNT_dec(PL_utf8_graph); 4549 SvREFCNT_dec(PL_utf8_digit); 4549 SvREFCNT_dec(PL_utf8_upper); 4549 SvREFCNT_dec(PL_utf8_lower); 4549 SvREFCNT_dec(PL_utf8_print); 4549 SvREFCNT_dec(PL_utf8_punct); 4549 SvREFCNT_dec(PL_utf8_xdigit); 4549 SvREFCNT_dec(PL_utf8_mark); 4549 SvREFCNT_dec(PL_utf8_toupper); 4549 SvREFCNT_dec(PL_utf8_totitle); 4549 SvREFCNT_dec(PL_utf8_tolower); 4549 SvREFCNT_dec(PL_utf8_tofold); 4549 SvREFCNT_dec(PL_utf8_idstart); 4549 SvREFCNT_dec(PL_utf8_idcont); 4549 PL_utf8_alnum = Nullsv; 4549 PL_utf8_alnumc = Nullsv; 4549 PL_utf8_ascii = Nullsv; 4549 PL_utf8_alpha = Nullsv; 4549 PL_utf8_space = Nullsv; 4549 PL_utf8_cntrl = Nullsv; 4549 PL_utf8_graph = Nullsv; 4549 PL_utf8_digit = Nullsv; 4549 PL_utf8_upper = Nullsv; 4549 PL_utf8_lower = Nullsv; 4549 PL_utf8_print = Nullsv; 4549 PL_utf8_punct = Nullsv; 4549 PL_utf8_xdigit = Nullsv; 4549 PL_utf8_mark = Nullsv; 4549 PL_utf8_toupper = Nullsv; 4549 PL_utf8_totitle = Nullsv; 4549 PL_utf8_tolower = Nullsv; 4549 PL_utf8_tofold = Nullsv; 4549 PL_utf8_idstart = Nullsv; 4549 PL_utf8_idcont = Nullsv; 4549 if (!specialWARN(PL_compiling.cop_warnings)) 3 SvREFCNT_dec(PL_compiling.cop_warnings); 4549 PL_compiling.cop_warnings = Nullsv; 4549 if (!specialCopIO(PL_compiling.cop_io)) 3 SvREFCNT_dec(PL_compiling.cop_io); 4549 PL_compiling.cop_io = Nullsv; 4549 CopFILE_free(&PL_compiling); CopSTASH_free(&PL_compiling); /* Prepare to destruct main symbol table. */ 4549 hv = PL_defstash; 4549 PL_defstash = 0; 4549 SvREFCNT_dec(hv); 4549 SvREFCNT_dec(PL_curstname); 4549 PL_curstname = Nullsv; /* clear queued errors */ 4549 SvREFCNT_dec(PL_errors); 4549 PL_errors = Nullsv; 4549 FREETMPS; 4549 if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { 4549 if (PL_scopestack_ix != 0) ###### Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", (long)PL_scopestack_ix); 4549 if (PL_savestack_ix != 0) ###### Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Unbalanced saves: %ld more saves than restores\n", (long)PL_savestack_ix); 4549 if (PL_tmps_floor != -1) ###### Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", (long)PL_tmps_floor + 1); 4549 if (cxstack_ix != -1) ###### Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", (long)cxstack_ix + 1); } /* Now absolutely destruct everything, somehow or other, loops or no. */ 4549 SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ 4549 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ /* the 2 is for PL_fdpid and PL_strtab */ 10728 while (PL_sv_count > 2 && sv_clean_all()) ; 4549 SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; 4549 SvFLAGS(PL_fdpid) |= SVt_PVAV; 4549 SvFLAGS(PL_strtab) &= ~SVTYPEMASK; 4549 SvFLAGS(PL_strtab) |= SVt_PVHV; 4549 AvREAL_off(PL_fdpid); /* no surviving entries */ 4549 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ 4549 PL_fdpid = Nullav; #ifdef HAVE_INTERP_INTERN sys_intern_clear(); #endif /* Destruct the global string table. */ { /* Yell and reset the HeVAL() slots that are still holding refcounts, * so that sv_free() won't fail on them. * Now that the global string table is using a single hunk of memory * for both HE and HEK, we either need to explicitly unshare it the * correct way, or actually free things here. */ 4549 I32 riter = 0; 4549 const I32 max = HvMAX(PL_strtab); 4549 HE **array = HvARRAY(PL_strtab); 4549 HE *hent = array[0]; 8020539 for (;;) { 4012544 if (hent && ckWARN_d(WARN_INTERNAL)) { ###### HE *next = HeNEXT(hent); ###### Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Unbalanced string table refcount: (%d) for \"%s\"", HeVAL(hent) - Nullsv, HeKEY(hent)); ###### Safefree(hent); ###### hent = next; } 4012544 if (!hent) { 4012544 if (++riter > max) 4549 break; 4007995 hent = array[riter]; } } 4549 Safefree(array); 4549 HvARRAY(PL_strtab) = 0; 4549 HvTOTALKEYS(PL_strtab) = 0; 4549 HvFILL(PL_strtab) = 0; } 4549 SvREFCNT_dec(PL_strtab); #ifdef USE_ITHREADS /* free the pointer tables used for cloning */ ptr_table_free(PL_ptr_table); PL_ptr_table = (PTR_TBL_t*)NULL; #endif /* free special SVs */ 4549 SvREFCNT(&PL_sv_yes) = 0; 4549 sv_clear(&PL_sv_yes); 4549 SvANY(&PL_sv_yes) = NULL; 4549 SvFLAGS(&PL_sv_yes) = 0; 4549 SvREFCNT(&PL_sv_no) = 0; 4549 sv_clear(&PL_sv_no); 4549 SvANY(&PL_sv_no) = NULL; 4549 SvFLAGS(&PL_sv_no) = 0; { 4549 int i; 18196 for (i=0; i<=2; i++) { 13647 SvREFCNT(PERL_DEBUG_PAD(i)) = 0; 13647 sv_clear(PERL_DEBUG_PAD(i)); 13647 SvANY(PERL_DEBUG_PAD(i)) = NULL; 13647 SvFLAGS(PERL_DEBUG_PAD(i)) = 0; } } 4549 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) ###### Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); #ifdef DEBUG_LEAKING_SCALARS if (PL_sv_count != 0) { SV* sva; SV* sv; register SV* svend; for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { svend = &sva[SvREFCNT(sva)]; for (sv = sva + 1; sv < svend; ++sv) { if (SvTYPE(sv) != SVTYPEMASK) { PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" " flags=0x%"UVxf " refcnt=%"UVuf pTHX__FORMAT "\n" "\tallocated at %s:%d %s %s%s\n", sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE, sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", sv->sv_debug_line, sv->sv_debug_inpad ? "for" : "by", sv->sv_debug_optype ? PL_op_name[sv->sv_debug_optype]: "(none)", sv->sv_debug_cloned ? " (cloned)" : "" ); #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP Perl_dump_sv_child(aTHX_ sv); #endif } } } } #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP { int status; fd_set rset; /* Wait for up to 4 seconds for child to terminate. This seems to be the least effort way of timing out on reaping its exit status. */ struct timeval waitfor = {4, 0}; int sock = PL_dumper_fd; shutdown(sock, 1); FD_ZERO(&rset); FD_SET(sock, &rset); select(sock + 1, &rset, NULL, NULL, &waitfor); waitpid(child, &status, WNOHANG); close(sock); } #endif #endif 4549 PL_sv_count = 0; #if defined(PERLIO_LAYERS) /* No more IO - including error messages ! */ 4549 PerlIO_cleanup(aTHX); #endif /* sv_undef needs to stay immortal until after PerlIO_cleanup as currently layers use it rather than Nullsv as a marker for no arg - and will try and SvREFCNT_dec it. */ 4549 SvREFCNT(&PL_sv_undef) = 0; 4549 SvREADONLY_off(&PL_sv_undef); 4549 Safefree(PL_origfilename); 4549 PL_origfilename = Nullch; 4549 Safefree(PL_reg_start_tmp); 4549 PL_reg_start_tmp = (char**)NULL; 4549 PL_reg_start_tmpl = 0; 4549 Safefree(PL_reg_curpm); 4549 Safefree(PL_reg_poscache); 4549 free_tied_hv_pool(); 4549 Safefree(PL_op_mask); 4549 Safefree(PL_psig_ptr); 4549 PL_psig_ptr = (SV**)NULL; 4549 Safefree(PL_psig_name); 4549 PL_psig_name = (SV**)NULL; 4549 Safefree(PL_bitcount); 4549 PL_bitcount = Nullch; 4549 Safefree(PL_psig_pend); 4549 PL_psig_pend = (int*)NULL; 4549 PL_formfeed = Nullsv; 4549 nuke_stacks(); 4549 PL_tainting = FALSE; 4549 PL_taint_warn = FALSE; 4549 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ 4549 PL_debug = 0; 4549 DEBUG_P(debprofdump()); #ifdef USE_REENTRANT_API Perl_reentrant_free(aTHX); #endif 4549 sv_free_arenas(); /* As the absolutely last thing, free the non-arena SV for mess() */ 4549 if (PL_mess_sv) { /* we know that type == SVt_PVMG */ /* it could have accumulated taint magic */ 3 MAGIC* mg; 3 MAGIC* moremagic; 3 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { ###### moremagic = mg->mg_moremagic; ###### if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global && mg->mg_len >= 0) ###### Safefree(mg->mg_ptr); ###### Safefree(mg); } /* we know that type >= SVt_PV */ 3 SvPV_free(PL_mess_sv); 3 Safefree(SvANY(PL_mess_sv)); 3 Safefree(PL_mess_sv); 3 PL_mess_sv = Nullsv; } 4549 return STATUS_NATIVE_EXPORT; } /* =for apidoc perl_free Releases a Perl interpreter. See L. =cut */ void perl_free(pTHXx) 4549 { #if defined(WIN32) || defined(NETWARE) # if defined(PERL_IMPLICIT_SYS) # ifdef NETWARE void *host = nw_internal_host; # else void *host = w32_internal_host; # endif PerlMem_free(aTHXx); # ifdef NETWARE nw_delete_internal_host(host); # else win32_delete_internal_host(host); # endif # else PerlMem_free(aTHXx); # endif #else 4549 PerlMem_free(aTHXx); #endif } #if defined(USE_5005THREADS) || defined(USE_ITHREADS) /* provide destructors to clean up the thread key when libperl is unloaded */ #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ #if defined(__hpux) && __ux_version > 1020 && !defined(__GNUC__) #pragma fini "perl_fini" #endif static void #if defined(__GNUC__) __attribute__((destructor)) #endif perl_fini(void) { dVAR; if (PL_curinterp) FREE_THREAD_KEY; } #endif /* WIN32 */ #endif /* THREADS */ void Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) ###### { ###### Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); ###### PL_exitlist[PL_exitlistlen].fn = fn; ###### PL_exitlist[PL_exitlistlen].ptr = ptr; ###### ++PL_exitlistlen; } #ifdef HAS_PROCSELFEXE /* This is a function so that we don't hold on to MAXPATHLEN bytes of stack longer than necessary */ STATIC void S_procself_val(pTHX_ SV *sv, const char *arg0) 4500 { 4500 char buf[MAXPATHLEN]; 4500 int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) includes a spurious NUL which will cause $^X to fail in system or backticks (this will prevent extensions from being built and many tests from working). readlink is not meant to add a NUL. Normal readlink works fine. */ 4500 if (len > 0 && buf[len-1] == '\0') { ###### len--; } /* FreeBSD's implementation is acknowledged to be imperfect, sometimes returning the text "unknown" from the readlink rather than the path to the executable (or returning an error from the readlink). Any valid path has a '/' in it somewhere, so use that to validate the result. See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 */ 4500 if (len > 0 && memchr(buf, '/', len)) { 4500 sv_setpvn(sv,buf,len); } else { ###### sv_setpv(sv,arg0); } } #endif /* HAS_PROCSELFEXE */ STATIC void 4500 S_set_caret_X(pTHX) { 4500 GV* tmpgv = gv_fetchpv("\030",TRUE, SVt_PV); /* $^X */ 4500 if (tmpgv) { #ifdef HAS_PROCSELFEXE 4500 S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); #else #ifdef OS2 sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); #else sv_setpv(GvSVn(tmpgv),PL_origargv[0]); #endif #endif } } /* =for apidoc perl_parse Tells a Perl interpreter to parse a Perl script. See L. =cut */ int perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) 4503 { dVAR; 4503 I32 oldscope; 4503 int ret; 4503 dJMPENV; 4503 PERL_UNUSED_VAR(my_perl); #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW #ifdef IAMSUID #undef IAMSUID Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ setuid perl scripts securely.\n"); #endif /* IAMSUID */ #endif #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 * This MUST be done before any hash stores or fetches take place. * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) * yourself, it is your responsibility to provide a good random seed! * You can also define PERL_HASH_SEED in compile time, see hv.h. */ 4503 if (!PL_rehash_seed_set) 4503 PL_rehash_seed = get_hash_seed(); { 4503 const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); 4503 if (s && (atoi(s) == 1)) ###### PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); } #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ 4503 PL_origargc = argc; 4503 PL_origargv = argv; { /* Set PL_origalen be the sum of the contiguous argv[] * elements plus the size of the env in case that it is * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() * as the maximum modifiable length of $0. In the worst case * the area we are able to modify is limited to the size of * the original argv[0]. (See below for 'contiguous', though.) * --jhi */ 4503 const char *s = NULL; 4503 int i; 4503 const UV mask = 4503 ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); /* Do the mask check only if the args seem like aligned. */ 4503 const UV aligned = 4503 (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); /* See if all the arguments are contiguous in memory. Note * that 'contiguous' is a loose term because some platforms * align the argv[] and the envp[]. If the arguments look * like non-aligned, assume that they are 'strictly' or * 'traditionally' contiguous. If the arguments look like * aligned, we just check that they are within aligned * PTRSIZE bytes. As long as no system has something bizarre * like the argv[] interleaved with some other data, we are * fine. (Did I just evoke Murphy's Law?) --jhi */ 4503 if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { 154927 while (*s) s++; 16716 for (i = 1; i < PL_origargc; i++) { 12213 if ((PL_origargv[i] == s + 1 #ifdef OS2 || PL_origargv[i] == s + 2 #endif ) || (aligned && (PL_origargv[i] > s && PL_origargv[i] <= INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) ) { 12213 s = PL_origargv[i]; 171168 while (*s) s++; } else 12213 break; } } /* Can we grab env area too to be used as the area for $0? */ 4503 if (PL_origenviron) { 4503 if ((PL_origenviron[0] == s + 1 #ifdef OS2 || (PL_origenviron[0] == s + 9 && (s += 8)) #endif ) || (aligned && (PL_origenviron[0] > s && PL_origenviron[0] <= INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) ) { #ifndef OS2 4502 s = PL_origenviron[0]; 63843 while (*s) s++; #endif 4502 my_setenv("NoNe SuCh", Nullch); /* Force copy of environment. */ 214770 for (i = 1; PL_origenviron[i]; i++) { 210268 if (PL_origenviron[i] == s + 1 || (aligned && (PL_origenviron[i] > s && PL_origenviron[i] <= INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) ) { 210268 s = PL_origenviron[i]; 11163643 while (*s) s++; } else 210268 break; } } } 4503 PL_origalen = s - PL_origargv[0] + 1; } 4503 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(); ###### assert (!PL_tainted); ###### TAINT; ###### S_set_caret_X(aTHX); ###### TAINT_NOT; ###### init_postdump_symbols(argc,argv,env); ###### return 0; } 4503 if (PL_main_root) { ###### op_free(PL_main_root); ###### PL_main_root = Nullop; } 4503 PL_main_start = Nullop; 4503 SvREFCNT_dec(PL_main_cv); 4503 PL_main_cv = Nullcv; 4503 time(&PL_basetime); 4503 oldscope = PL_scopestack_ix; 4503 PL_dowarn = G_WARN_OFF; 4503 JMPENV_PUSH(ret); 4636 switch (ret) { case 0: 4503 parse_body(env,xsinit); 4373 if (PL_checkav) 83 call_list(oldscope, PL_checkav); 4372 ret = 0; 4372 break; case 1: ###### STATUS_ALL_FAILURE; /* FALL THROUGH */ case 2: /* my_exit() was called */ 229 while (PL_scopestack_ix > oldscope) 96 LEAVE; 133 FREETMPS; 133 PL_curstash = PL_defstash; 133 if (PL_checkav) 3 call_list(oldscope, PL_checkav); 133 ret = STATUS_NATIVE_EXPORT; 133 break; case 3: ###### PerlIO_printf(Perl_error_log, "panic: top_env\n"); ###### ret = 1; break; } 4505 JMPENV_POP; 4505 return ret; } STATIC void * S_parse_body(pTHX_ char **env, XSINIT_t xsinit) 4503 { dVAR; 4503 int argc = PL_origargc; 4503 char **argv = PL_origargv; 4503 const char *scriptname = NULL; 4503 VOL bool dosearch = FALSE; 4503 const char *validarg = ""; 4503 register SV *sv; 4503 register char *s; 4503 const char *cddir = Nullch; #ifdef USE_SITECUSTOMIZE bool minus_f = FALSE; #endif 4503 PL_fdscript = -1; 4503 PL_suidscript = -1; 4503 sv_setpvn(PL_linestr,"",0); 4503 sv = newSVpvn("",0); /* first used for -I flags */ 4503 SAVEFREESV(sv); 4503 init_main_stash(); 10316 for (argc--,argv++; argc > 0; argc--,argv++) { 8781 if (argv[0][0] != '-' || !argv[0][1]) 18 break; #ifdef DOSUID if (*validarg) validarg = " PHOOEY "; else validarg = argv[0]; /* * Can we rely on the kernel to start scripts with argv[1] set to * contain all #! line switches (the whole line)? (argv[0] is set to * the interpreter name, argv[2] to the script name; argv[3] and * above may contain other arguments.) */ #endif 5834 s = argv[0]+1; reswitch: 8048 switch (*s) { case 'C': #ifndef PERL_STRICT_CR case '\r': #endif 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': case 'X': case 'w': case 'A': 2157 if ((s = moreswitches(s))) 2155 goto reswitch; 2 break; case 't': 2 CHECK_MALLOC_TOO_LATE_FOR('t'); 2 if( !PL_tainting ) { 2 PL_taint_warn = TRUE; 2 PL_tainting = TRUE; } 2 s++; 2 goto reswitch; case 'T': 41 CHECK_MALLOC_TOO_LATE_FOR('T'); 41 PL_tainting = TRUE; 41 PL_taint_warn = FALSE; 41 s++; 41 goto reswitch; case 'e': #ifdef MACOS_TRADITIONAL /* ignore -e for Dev:Pseudo argument */ if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) break; #endif 2041 forbid_setid("-e"); 2041 if (!PL_e_script) { 2034 PL_e_script = newSVpvn("",0); 2034 filter_add(read_e_script, NULL); } 2041 if (*++s) 7 sv_catpv(PL_e_script, s); 2034 else if (argv[1]) { 2034 sv_catpv(PL_e_script, argv[1]); 2034 argc--,argv++; } else ###### Perl_croak(aTHX_ "No code specified for -e"); 2041 sv_catpv(PL_e_script, "\n"); 2041 break; case 'f': #ifdef USE_SITECUSTOMIZE minus_f = TRUE; #endif 8 s++; 8 goto reswitch; case 'I': /* -I handled both here and in moreswitches() */ 2804 forbid_setid("-I"); 2804 if (!*++s && (s=argv[1]) != Nullch) { ###### argc--,argv++; } 2804 if (s && *s) { 2804 char *p; 2804 STRLEN len = strlen(s); 2804 p = savepvn(s, len); 2804 incpush(p, TRUE, TRUE, FALSE, FALSE); 2804 sv_catpvn(sv, "-I", 2); 2804 sv_catpvn(sv, p, len); 2804 sv_catpvn(sv, " ", 1); 2804 Safefree(p); } else ###### Perl_croak(aTHX_ "No directory specified for -I"); 3 break; case 'P': 3 forbid_setid("-P"); 3 PL_preprocess = TRUE; 3 s++; 3 goto reswitch; case 'S': ###### forbid_setid("-S"); ###### dosearch = TRUE; ###### s++; ###### goto reswitch; case 'V': { 5 SV *opts_prog; 5 if (!PL_preambleav) 5 PL_preambleav = newAV(); 5 av_push(PL_preambleav, newSVpv("use Config;",0)); 5 if (*++s != ':') { 2 STRLEN opts; 2 opts_prog = newSVpv("print Config::myconfig(),",0); #ifdef VMS sv_catpv(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n\","); #else 2 sv_catpv(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n\","); #endif 2 opts = SvCUR(opts_prog); 2 sv_catpv(opts_prog,"\" Compile-time options:"); # ifdef DEBUGGING 2 sv_catpv(opts_prog," DEBUGGING"); # endif # ifdef MULTIPLICITY sv_catpv(opts_prog," MULTIPLICITY"); # endif # ifdef USE_5005THREADS sv_catpv(opts_prog," USE_5005THREADS"); # endif # ifdef USE_ITHREADS sv_catpv(opts_prog," USE_ITHREADS"); # endif # ifdef USE_64_BIT_INT sv_catpv(opts_prog," USE_64_BIT_INT"); # endif # ifdef USE_64_BIT_ALL sv_catpv(opts_prog," USE_64_BIT_ALL"); # endif # ifdef USE_LONG_DOUBLE sv_catpv(opts_prog," USE_LONG_DOUBLE"); # endif # ifdef USE_LARGE_FILES 2 sv_catpv(opts_prog," USE_LARGE_FILES"); # endif # ifdef USE_SOCKS sv_catpv(opts_prog," USE_SOCKS"); # endif # ifdef USE_SITECUSTOMIZE sv_catpv(opts_prog," USE_SITECUSTOMIZE"); # endif # ifdef PERL_IMPLICIT_CONTEXT sv_catpv(opts_prog," PERL_IMPLICIT_CONTEXT"); # endif # ifdef PERL_IMPLICIT_SYS sv_catpv(opts_prog," PERL_IMPLICIT_SYS"); # endif 2 while (SvCUR(opts_prog) > opts+76) { /* find last space after "options: " and before col 76 */ ###### const char *space; ###### char *pv = SvPV_nolen(opts_prog); ###### const char c = pv[opts+76]; ###### pv[opts+76] = '\0'; ###### space = strrchr(pv+opts+26, ' '); ###### pv[opts+76] = c; ###### if (!space) break; /* "Can't happen" */ /* break the line before that space */ ###### opts = space - pv; ###### sv_insert(opts_prog, opts, 0, "\\n ", 25); } 2 sv_catpv(opts_prog,"\\n\","); #if defined(LOCAL_PATCH_COUNT) 2 if (LOCAL_PATCH_COUNT > 0) { 2 int i; 2 sv_catpv(opts_prog, "\" Locally applied patches:\\n\","); 4 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { 2 if (PL_localpatches[i]) 2 Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", 0, PL_localpatches[i], 0); } } #endif 2 Perl_sv_catpvf(aTHX_ opts_prog, "\" Built under %s\\n\"",OSNAME); #ifdef __DATE__ # ifdef __TIME__ 2 Perl_sv_catpvf(aTHX_ opts_prog, ",\" Compiled at %s %s\\n\"",__DATE__, __TIME__); # else Perl_sv_catpvf(aTHX_ opts_prog,",\" Compiled on %s\\n\"", __DATE__); # endif #endif 2 sv_catpv(opts_prog, "; $\"=\"\\n \"; " "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " "sort grep {/^PERL/} keys %ENV; "); #ifdef __CYGWIN__ sv_catpv(opts_prog, "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); #endif 2 sv_catpv(opts_prog, "print \" \\%ENV:\\n @env\\n\" if @env;" "print \" \\@INC:\\n @INC\\n\";"); } else { 3 ++s; 3 opts_prog = Perl_newSVpvf(aTHX_ "Config::config_vars(qw%c%s%c)", 0, s, 0); 3 s += strlen(s); } 5 av_push(PL_preambleav, opts_prog); /* don't look for script or read stdin */ 5 scriptname = BIT_BUCKET; 5 goto reswitch; } case 'x': 8 PL_doextract = TRUE; 8 s++; 8 if (*s) ###### cddir = s; ###### break; case 0: 18 break; case '-': 18 if (!*++s || isSPACE(*s)) { 18 argc--,argv++; 18 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; } ###### s--; /* FALL THROUGH */ default: 1 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); } } switch_end: 4500 if ( #ifndef SECURE_INTERNAL_GETENV !PL_tainting && #endif (s = PerlEnv_getenv("PERL5OPT"))) { 11 const char *popt = s; 11 while (isSPACE(*s)) ###### s++; 11 if (*s == '-' && *(s+1) == 'T') { ###### CHECK_MALLOC_TOO_LATE_FOR('T'); ###### PL_tainting = TRUE; ###### PL_taint_warn = FALSE; } else { 11 char *popt_copy = Nullch; 28 while (s && *s) { 17 char *d; 17 while (isSPACE(*s)) ###### s++; 17 if (*s == '-') { 17 s++; 17 if (isSPACE(*s)) 17 continue; } 17 d = s; 17 if (!*s) ###### break; 17 if (!strchr("DIMUdmtwA", *s)) ###### Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); 85 while (++s && *s) { 74 if (isSPACE(*s)) { 6 if (!popt_copy) { 6 popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); 6 s = popt_copy + (s - popt); 6 d = popt_copy + (d - popt); } 6 *s++ = '\0'; break; } } 17 if (*d == 't') { 1 if( !PL_tainting ) { 1 PL_taint_warn = TRUE; 1 PL_tainting = TRUE; } } else { 16 moreswitches(d); } } } } #ifdef USE_SITECUSTOMIZE if (!minus_f) { if (!PL_preambleav) PL_preambleav = newAV(); av_unshift(PL_preambleav, 1); (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); } #endif 4500 if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) { 3 PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); } 4500 if (!scriptname) 4495 scriptname = argv[0]; 4500 if (PL_e_script) { 2034 argc++,argv--; 2034 scriptname = BIT_BUCKET; /* don't look for script or read stdin */ } 2466 else if (scriptname == Nullch) { #ifdef MSDOS if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) moreswitches("h"); #endif 1 scriptname = "-"; } /* Set $^X early so that it can be used for relocatable paths in @INC */ 4500 assert (!PL_tainted); 4500 TAINT; 4500 S_set_caret_X(aTHX); 4500 TAINT_NOT; 4500 init_perllib(); 4500 open_script(scriptname,dosearch,sv); 4500 validate_suid(validarg, scriptname); #ifndef PERL_MICRO #if defined(SIGCHLD) || defined(SIGCLD) { #ifndef SIGCHLD # define SIGCHLD SIGCLD #endif 4500 Sighandler_t sigstate = rsignal_state(SIGCHLD); 4500 if (sigstate == SIG_IGN) { ###### if (ckWARN(WARN_SIGNAL)) ###### Perl_warner(aTHX_ packWARN(WARN_SIGNAL), "Can't ignore signal CHLD, forcing to default"); ###### (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); } } #endif #endif #ifdef MACOS_TRADITIONAL if (PL_doextract || gMacPerl_AlwaysExtract) { #else 4500 if (PL_doextract) { #endif 7 find_beginning(); 7 if (cddir && PerlDir_chdir( (char *)cddir ) < 0) ###### Perl_croak(aTHX_ "Can't chdir to %s",cddir); } 4500 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); 4500 sv_upgrade((SV *)PL_compcv, SVt_PVCV); 4500 CvUNIQUE_on(PL_compcv); 4500 CvPADLIST(PL_compcv) = pad_new(0); #ifdef USE_5005THREADS CvOWNER(PL_compcv) = 0; New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); MUTEX_INIT(CvMUTEXP(PL_compcv)); #endif /* USE_5005THREADS */ 4500 boot_core_PerlIO(); 4500 boot_core_UNIVERSAL(); 4500 boot_core_xsutils(); 4500 if (xsinit) 4499 (*xsinit)(aTHX); /* in case linked C routines want magical variables */ #ifndef PERL_MICRO #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) init_os_extras(); #endif #endif #ifdef USE_SOCKS # ifdef HAS_SOCKS5_INIT socks5_init(argv[0]); # else SOCKSinit(argv[0]); # endif #endif 4500 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 */ 4500 if (!PL_do_undump) 4500 init_postdump_symbols(argc,argv,env); /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, * or explicitly in some platforms. * locale.c:Perl_init_i18nl10n() if the environment * look like the user wants to use UTF-8. */ #if defined(SYMBIAN) PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ #endif 4500 if (PL_unicode) { /* Requires init_predump_symbols(). */ 6 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { 6 IO* io; 6 PerlIO* fp; 6 SV* sv; /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR * and the default open disciplines. */ 6 if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && PL_stdingv && (io = GvIO(PL_stdingv)) && (fp = IoIFP(io))) 1 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); 6 if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && PL_defoutgv && (io = GvIO(PL_defoutgv)) && (fp = IoOFP(io))) 1 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); 6 if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && PL_stderrgv && (io = GvIO(PL_stderrgv)) && (fp = IoOFP(io))) 1 PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); 6 if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) { 2 U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; 2 U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; 2 if (in) { 1 if (out) ###### sv_setpvn(sv, ":utf8\0:utf8", 11); else 1 sv_setpvn(sv, ":utf8\0", 6); } 1 else if (out) 1 sv_setpvn(sv, "\0:utf8", 6); 2 SvSETMAGIC(sv); } } } 4500 if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { ###### if (strEQ(s, "unsafe")) ###### PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; ###### else if (strEQ(s, "safe")) ###### PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; else ###### Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); } 4500 init_lexer(); /* now parse the script */ 4500 SETERRNO(0,SS_NORMAL); 4500 PL_error_count = 0; #ifdef MACOS_TRADITIONAL if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { if (PL_minus_c) Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); else { Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); } } #else 4500 if (yyparse() || PL_error_count) { 40 if (PL_minus_c) 2 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); else { 38 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", PL_origfilename); } } #endif 4373 CopLINE_set(PL_curcop, 0); 4373 PL_curstash = PL_defstash; 4373 PL_preprocess = FALSE; 4373 if (PL_e_script) { 2028 SvREFCNT_dec(PL_e_script); 2028 PL_e_script = Nullsv; } 4373 if (PL_do_undump) ###### my_unexec(); 4373 if (isWARN_ONCE) { 1447 SAVECOPFILE(PL_curcop); 1447 SAVECOPLINE(PL_curcop); 1447 gv_check(PL_defstash); } 4373 LEAVE; 4373 FREETMPS; #ifdef MYMALLOC if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) dump_mstats("after compilation:"); #endif 4373 ENTER; 4373 PL_restartop = 0; 4373 return NULL; } /* =for apidoc perl_run Tells a Perl interpreter to run. See L. =cut */ int perl_run(pTHXx) 4421 { 4421 I32 oldscope; 4421 int ret = 0; 4421 dJMPENV; 4421 PERL_UNUSED_ARG(my_perl); 4421 oldscope = PL_scopestack_ix; #ifdef VMS VMSISH_HUSHED = 0; #endif 4421 JMPENV_PUSH(ret); 12204 switch (ret) { case 1: ###### cxstack_ix = -1; /* start context stack again */ goto redo_body; case 0: /* normal completion */ redo_body: 7739 run_body(oldscope); /* FALL THROUGH */ case 2: /* my_exit() */ 4465 while (PL_scopestack_ix > oldscope) ###### LEAVE; 4465 FREETMPS; 4465 PL_curstash = PL_defstash; 4465 if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && PL_endav && !PL_minus_c) ###### call_list(oldscope, PL_endav); #ifdef MYMALLOC if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) dump_mstats("after execution: "); #endif 4465 ret = STATUS_NATIVE_EXPORT; 4465 break; case 3: 3318 if (PL_restartop) { 3318 POPSTACK_TO(PL_mainstack); ###### goto redo_body; } ###### PerlIO_printf(Perl_error_log, "panic: restartop\n"); ###### FREETMPS; ###### ret = 1; break; } 4465 JMPENV_POP; 4465 return ret; } STATIC void S_run_body(pTHX_ I32 oldscope) 7739 { DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", 7739 PL_sawampersand ? "Enabling" : "Omitting")); 7739 if (!PL_restartop) { 4421 DEBUG_x(dump_all()); 4421 if (!DEBUG_q_TEST) 4421 PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", PTR2UV(thr))); 4421 if (PL_minus_c) { #ifdef MACOS_TRADITIONAL PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", (gMacPerl_ErrorFormat ? "# " : ""), MacPerl_MPWFileName(PL_origfilename)); #else 78 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); #endif 78 my_exit(0); } 4343 if (PERLDB_SINGLE && PL_DBsingle) 1 sv_setiv(PL_DBsingle, 1); 4343 if (PL_initav) 4 call_list(oldscope, PL_initav); } /* do it */ 7660 if (PL_restartop) { 3318 PL_op = PL_restartop; 3318 PL_restartop = 0; 3318 CALLRUNOPS(aTHX); } 4342 else if (PL_main_start) { 4263 CvDEPTH(PL_main_cv) = 1; 4263 PL_op = PL_main_start; 4263 CALLRUNOPS(aTHX); } 4010 my_exit(0); /* NOTREACHED */ } /* =head1 SV Manipulation Functions =for apidoc p||get_sv Returns the SV of the specified Perl scalar. If C is set and the Perl variable does not exist then it will be created. If C is not set and the variable does not exist then NULL is returned. =cut */ SV* Perl_get_sv(pTHX_ const char *name, I32 create) 4211113 { 4211113 GV *gv; #ifdef USE_5005THREADS if (name[1] == '\0' && !isALPHA(name[0])) { PADOFFSET tmp = find_threadsv(name); if (tmp != NOT_IN_PAD) return THREADSV(tmp); } #endif /* USE_5005THREADS */ 4211113 gv = gv_fetchpv(name, create, SVt_PV); 4211113 if (gv) 309720 return GvSV(gv); 3901393 return Nullsv; } /* =head1 Array Manipulation Functions =for apidoc p||get_av Returns the AV of the specified Perl array. If C is set and the Perl variable does not exist then it will be created. If C is not set and the variable does not exist then NULL is returned. =cut */ AV* Perl_get_av(pTHX_ const char *name, I32 create) 9111 { 9111 GV* gv = gv_fetchpv(name, create, SVt_PVAV); 9111 if (create) 9109 return GvAVn(gv); 2 if (gv) 1 return GvAV(gv); 1 return Nullav; } /* =head1 Hash Manipulation Functions =for apidoc p||get_hv Returns the HV of the specified Perl hash. If C is set and the Perl variable does not exist then it will be created. If C is not set and the variable does not exist then NULL is returned. =cut */ HV* Perl_get_hv(pTHX_ const char *name, I32 create) 65177 { 65177 GV* gv = gv_fetchpv(name, create, SVt_PVHV); 65177 if (create) 1 return GvHVn(gv); 65176 if (gv) 64242 return GvHV(gv); 934 return Nullhv; } /* =head1 CV Manipulation Functions =for apidoc p||get_cv Returns the CV of the specified Perl subroutine. If C is set and the Perl subroutine does not exist then it will be declared (which has the same effect as saying C). If C is not set and the subroutine does not exist then NULL is returned. =cut */ CV* Perl_get_cv(pTHX_ const char *name, I32 create) 10503 { 10503 GV* gv = gv_fetchpv(name, create, SVt_PVCV); /* XXX unsafe for threads if eval_owner isn't held */ /* XXX this is probably not what they think they're getting. * It has the same effect as "sub name;", i.e. just a forward * declaration! */ 10503 if (create && !GvCVu(gv)) 5 return newSUB(start_subparse(FALSE, 0), newSVOP(OP_CONST, 0, newSVpv(name,0)), Nullop, Nullop); 10498 if (gv) 9727 return GvCVu(gv); 771 return Nullcv; } /* Be sure to refetch the stack pointer after calling these routines. */ /* =head1 Callback Functions =for apidoc p||call_argv Performs a callback to the specified Perl sub. See L. =cut */ I32 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) /* See G_* flags in cop.h */ /* null terminated arg list */ 6 { 6 dSP; 6 PUSHMARK(SP); 6 if (argv) { 15 while (*argv) { 9 XPUSHs(sv_2mortal(newSVpv(*argv,0))); 9 argv++; } 6 PUTBACK; } 6 return call_pv(sub_name, flags); } /* =for apidoc p||call_pv Performs a callback to the specified Perl sub. See L. =cut */ I32 Perl_call_pv(pTHX_ const char *sub_name, I32 flags) /* name of the subroutine */ /* See G_* flags in cop.h */ 1016 { 1016 return call_sv((SV*)get_cv(sub_name, TRUE), flags); } /* =for apidoc p||call_method Performs a callback to the specified Perl method. The blessed object must be on the stack. See L. =cut */ I32 Perl_call_method(pTHX_ const char *methname, I32 flags) /* name of the subroutine */ /* See G_* flags in cop.h */ 317675 { 317675 return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); } /* May be called with any of a CV, a GV, or an SV containing the name. */ /* =for apidoc p||call_sv Performs a callback to the Perl sub whose name is in the SV. See L. =cut */ I32 Perl_call_sv(pTHX_ SV *sv, I32 flags) /* See G_* flags in cop.h */ 722834 { 722834 dVAR; dSP; 722834 LOGOP myop; /* fake syntax tree node */ 722834 UNOP method_op; 722834 I32 oldmark; 722834 volatile I32 retval = 0; 722834 I32 oldscope; 722834 bool oldcatch = CATCH_GET; 722834 int ret; 722834 OP* oldop = PL_op; 722834 dJMPENV; 722834 if (flags & G_DISCARD) { 161720 ENTER; 161720 SAVETMPS; } 722834 Zero(&myop, 1, LOGOP); 722834 myop.op_next = Nullop; 722834 if (!(flags & G_NOARGS)) 722818 myop.op_flags |= OPf_STACKED; 722834 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : (flags & G_ARRAY) ? OPf_WANT_LIST : OPf_WANT_SCALAR); 722834 SAVEOP(); 722834 PL_op = (OP*)&myop; 722834 EXTEND(PL_stack_sp, 1); 722834 *++PL_stack_sp = sv; 722834 oldmark = TOPMARK; 722834 oldscope = PL_scopestack_ix; 722834 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)) 80010 PL_op->op_private |= OPpENTERSUB_DB; 722834 if (flags & G_METHOD) { 317675 Zero(&method_op, 1, UNOP); 317675 method_op.op_next = PL_op; 317675 method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; 317675 myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; 317675 PL_op = (OP*)&method_op; } 722834 if (!(flags & G_EVAL)) { 568604 CATCH_SET(TRUE); 568604 call_body((OP*)&myop, FALSE); 568308 retval = PL_stack_sp - (PL_stack_base + oldmark); 568308 CATCH_SET(oldcatch); } else { 154230 myop.op_other = (OP*)&myop; 154230 PL_markstack_ptr--; /* we're trying to emulate pp_entertry() here */ { 154230 register PERL_CONTEXT *cx; 154230 const I32 gimme = GIMME_V; 154230 ENTER; 154230 SAVETMPS; 154230 PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); 154230 PUSHEVAL(cx, 0, 0); 154230 PL_eval_root = PL_op; /* Only needed so that goto works right. */ 154230 PL_in_eval = EVAL_INEVAL; 154230 if (flags & G_KEEPERR) 74668 PL_in_eval |= EVAL_KEEPERR; else 79562 sv_setpvn(ERRSV,"",0); } 154230 PL_markstack_ptr++; 154230 JMPENV_PUSH(ret); 155208 switch (ret) { case 0: redo_body: 154919 call_body((OP*)&myop, FALSE); 153943 retval = PL_stack_sp - (PL_stack_base + oldmark); 153943 if (!(flags & G_KEEPERR)) 79340 sv_setpvn(ERRSV,"",0); 79340 break; case 1: ###### STATUS_ALL_FAILURE; /* FALL THROUGH */ case 2: /* my_exit() was called */ 58 PL_curstash = PL_defstash; 58 FREETMPS; 58 JMPENV_POP; 58 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) ###### Perl_croak(aTHX_ "Callback called exit"); 58 my_exit_jump(); /* NOTREACHED */ case 3: 920 if (PL_restartop) { 689 PL_op = PL_restartop; 689 PL_restartop = 0; 689 goto redo_body; } 231 PL_stack_sp = PL_stack_base + oldmark; 231 if (flags & G_ARRAY) 12 retval = 0; else { 219 retval = 1; 219 *++PL_stack_sp = &PL_sv_undef; } break; } 154174 if (PL_scopestack_ix > oldscope) { 153943 SV **newsp; 153943 PMOP *newpm; 153943 I32 gimme; 153943 register PERL_CONTEXT *cx; 153943 I32 optype; 153943 POPBLOCK(cx,newpm); 153943 POPEVAL(cx); 153943 PL_curpm = newpm; 153943 LEAVE; 154174 PERL_UNUSED_VAR(newsp); 154174 PERL_UNUSED_VAR(gimme); 154174 PERL_UNUSED_VAR(optype); } 154174 JMPENV_POP; } 722482 if (flags & G_DISCARD) { 161607 PL_stack_sp = PL_stack_base + oldmark; 161607 retval = 0; 161607 FREETMPS; 161607 LEAVE; } 722482 PL_op = oldop; 722482 return retval; } STATIC void S_call_body(pTHX_ const OP *myop, bool is_eval) 723625 { 723625 if (PL_op == myop) { 405261 if (is_eval) 102 PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */ else 405159 PL_op = Perl_pp_entersub(aTHX); /* this does */ } 723625 if (PL_op) 611462 CALLRUNOPS(aTHX); } /* Eval a string. The G_EVAL flag is always assumed. */ /* =for apidoc p||eval_sv Tells Perl to C the string in the SV. =cut */ I32 Perl_eval_sv(pTHX_ SV *sv, I32 flags) /* See G_* flags in cop.h */ 103 { 103 dSP; 103 UNOP myop; /* fake syntax tree node */ 103 volatile I32 oldmark = SP - PL_stack_base; 103 volatile I32 retval = 0; 103 int ret; 103 OP* oldop = PL_op; 103 dJMPENV; 103 if (flags & G_DISCARD) { 14 ENTER; 14 SAVETMPS; } 103 SAVEOP(); 103 PL_op = (OP*)&myop; 103 Zero(PL_op, 1, UNOP); 103 EXTEND(PL_stack_sp, 1); 103 *++PL_stack_sp = sv; 103 if (!(flags & G_NOARGS)) 95 myop.op_flags = OPf_STACKED; 103 myop.op_next = Nullop; 103 myop.op_type = OP_ENTEREVAL; 103 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : (flags & G_ARRAY) ? OPf_WANT_LIST : OPf_WANT_SCALAR); 103 if (flags & G_KEEPERR) 8 myop.op_flags |= OPf_SPECIAL; /* fail now; otherwise we could fail after the JMPENV_PUSH but * before a PUSHEVAL, which corrupts the stack after a croak */ 103 TAINT_PROPER("eval_sv()"); 102 JMPENV_PUSH(ret); 128 switch (ret) { case 0: redo_body: 102 call_body((OP*)&myop,TRUE); 76 retval = PL_stack_sp - (PL_stack_base + oldmark); 76 if (!(flags & G_KEEPERR)) 76 sv_setpvn(ERRSV,"",0); 76 break; case 1: ###### STATUS_ALL_FAILURE; /* FALL THROUGH */ case 2: /* my_exit() was called */ ###### PL_curstash = PL_defstash; ###### FREETMPS; ###### JMPENV_POP; ###### if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) ###### Perl_croak(aTHX_ "Callback called exit"); ###### my_exit_jump(); /* NOTREACHED */ case 3: 26 if (PL_restartop) { ###### PL_op = PL_restartop; ###### PL_restartop = 0; ###### goto redo_body; } 26 PL_stack_sp = PL_stack_base + oldmark; 26 if (flags & G_ARRAY) 6 retval = 0; else { 20 retval = 1; 20 *++PL_stack_sp = &PL_sv_undef; } break; } 102 JMPENV_POP; 102 if (flags & G_DISCARD) { 14 PL_stack_sp = PL_stack_base + oldmark; 14 retval = 0; 14 FREETMPS; 14 LEAVE; } 102 PL_op = oldop; 102 return retval; } /* =for apidoc p||eval_pv Tells Perl to C the given string and return an SV* result. =cut */ SV* Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) 54 { 54 dSP; 54 SV* sv = newSVpv(p, 0); 54 eval_sv(sv, G_SCALAR); 54 SvREFCNT_dec(sv); 54 SPAGAIN; 54 sv = POPs; 54 PUTBACK; 54 if (croak_on_error && SvTRUE(ERRSV)) { 1 Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); } 53 return sv; } /* Require a module. */ /* =head1 Embedding Functions =for apidoc p||require_pv Tells Perl to C the file named by the string argument. It is analogous to the Perl code C. It's even implemented that way; consider using load_module instead. =cut */ void Perl_require_pv(pTHX_ const char *pv) ###### { ###### SV* sv; ###### dSP; ###### PUSHSTACKi(PERLSI_REQUIRE); ###### PUTBACK; ###### sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); ###### eval_sv(sv_2mortal(sv), G_DISCARD); ###### SPAGAIN; ###### POPSTACK; } void Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen) 4500 { 4500 register GV *gv; 4500 if ((gv = gv_fetchpv(sym,TRUE, SVt_PV))) 4500 sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); } STATIC void S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ 1 { /* This message really ought to be max 23 lines. * Removed -h because the user already knows that option. Others? */ static const char * const usage_msg[] = { "-0[octal] specify record separator (\\0, if no argument)", "-A[mod][=pattern] activate all/given assertions", "-a autosplit mode with -n or -p (splits $_ into @F)", "-C[number/list] enables the listed Unicode features", "-c check syntax only (runs BEGIN and CHECK blocks)", "-d[:debugger] run program under debugger", "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", "-e program one line of program (several -e's allowed, omit programfile)", "-f don't do $sitelib/sitecustomize.pl at startup", "-F/pattern/ split() pattern for -a switch (//'s are optional)", "-i[extension] edit <> files in place (makes backup if extension supplied)", "-Idirectory specify @INC/#include directory (several -I's allowed)", "-l[octal] enable line ending processing, specifies line terminator", "-[mM][-]module execute \"use/no module...\" before executing program", "-n assume \"while (<>) { ... }\" loop around program", "-p assume loop like -n but print line also, like sed", "-P run program through C preprocessor before compilation", "-s enable rudimentary parsing for switches after programfile", "-S look for programfile using PATH environment variable", "-t enable tainting warnings", "-T enable tainting checks", "-u dump core after parsing program", "-U allow unsafe operations", "-v print version, subversion (includes VERY IMPORTANT perl info)", "-V[:variable] print configuration summary (or a single Config.pm variable)", "-w enable many useful warnings (RECOMMENDED)", "-W enable all warnings", "-x[directory] strip off text before #!perl line and perhaps cd to directory", "-X disable all warnings", "\n", NULL 1 }; 1 const char * const *p = usage_msg; 1 PerlIO_printf(PerlIO_stdout(), "\nUsage: %s [switches] [--] [programfile] [arguments]", name); 31 while (*p) 30 PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); } /* convert a string of -D options (or digits) into an int. * sets *s to point to the char after the options */ #ifdef DEBUGGING int Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) 1 { static const char * const usage_msgd[] = { " Debugging flag values: (see also -d)", " p Tokenizing and parsing (with v, displays parse stack)", " s Stack snapshots (with v, displays all stacks)", " l Context (loop) stack processing", " t Trace execution", " o Method and overloading resolution", " c String/numeric conversions", " P Print profiling info, preprocessor command for -P, source file input state", " m Memory allocation", " f Format processing", " r Regular expression parsing and execution", " x Syntax tree dump", " u Tainting checks", " H Hash dump -- usurps values()", " X Scratchpad allocation", " D Cleaning up", " S Thread synchronization", " T Tokenising", " R Include reference counts of dumped variables (eg when using -Ds)", " J Do not s,t,P-debug (Jump over) opcodes within package DB", " v Verbose: use in conjunction with other flags", " C Copy On Write", " A Consistency checks on internal structures", " q quiet - currently only suppresses the 'EXECUTING' message", NULL 1 }; 1 int i = 0; 1 if (isALPHA(**s)) { /* if adding extra options, remember to update DEBUG_MASK */ 2 static const char debopts[] = "psltocPmfrxu HXDSTRJvCAq"; 3 for (; isALNUM(**s); (*s)++) { 1 const char *d = strchr(debopts,**s); 1 if (d) 1 i |= 1 << (d - debopts); ###### else if (ckWARN_d(WARN_DEBUGGING)) ###### Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), "invalid option -D%c, use -D'' to see choices\n", **s); } } ###### else if (isDIGIT(**s)) { ###### i = atoi(*s); ###### for (; isALNUM(**s); (*s)++) ; } ###### else if (givehelp) { ###### char **p = (char **)usage_msgd; ###### while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); } # ifdef EBCDIC if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), "-Dp not implemented on this platform\n"); # endif 1 return i; } #endif /* This routine handles any switches that can be given during run */ char * Perl_moreswitches(pTHX_ char *s) 3005 { dVAR; 3005 UV rschar; 3005 switch (*s) { case '0': { 9 I32 flags = 0; 9 STRLEN numlen; 9 SvREFCNT_dec(PL_rs); 9 if (s[1] == 'x' && s[2]) { ###### const char *e = s+=2; ###### U8 *tmps; ###### while (*e) ###### e++; ###### numlen = e - s; ###### flags = PERL_SCAN_SILENT_ILLDIGIT; ###### rschar = (U32)grok_hex(s, &numlen, &flags, NULL); ###### if (s + numlen < e) { ###### rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ ###### numlen = 0; ###### s--; } ###### PL_rs = newSVpvn("", 0); ###### SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); ###### tmps = (U8*)SvPVX(PL_rs); ###### uvchr_to_utf8(tmps, rschar); ###### SvCUR_set(PL_rs, UNISKIP(rschar)); ###### SvUTF8_on(PL_rs); } else { 9 numlen = 4; 9 rschar = (U32)grok_oct(s, &numlen, &flags, NULL); 9 if (rschar & ~((U8)~0)) 1 PL_rs = &PL_sv_undef; 8 else if (!rschar && numlen >= 2) 1 PL_rs = newSVpvn("", 0); else { 7 char ch = (char)rschar; 7 PL_rs = newSVpvn(&ch, 1); } } 9 sv_setsv(get_sv("/", TRUE), PL_rs); 9 return s + numlen; } case 'C': 6 s++; 6 PL_unicode = parse_unicode_opts( (const char **)&s ); 6 return s; case 'F': 2 PL_minus_F = TRUE; 2 PL_splitstr = ++s; 15 while (*s && !isSPACE(*s)) ++s; 2 *s = '\0'; 2 PL_splitstr = savepv(PL_splitstr); 2 return s; case 'a': 7 PL_minus_a = TRUE; 7 s++; 7 return s; case 'c': 1 PL_minus_c = TRUE; 1 s++; 1 return s; case 'd': 9 forbid_setid("-d"); 9 s++; /* -dt indicates to the debugger that threads will be used */ 9 if (*s == 't' && !isALNUM(s[1])) { ###### ++s; ###### my_setenv("PERL5DB_THREADED", "1"); } /* The following permits -d:Mod to accepts arguments following an = in the fashion that -MSome::Mod does. */ 9 if (*s == ':' || *s == '=') { 9 const char *start; 9 SV *sv; 9 sv = newSVpv("use Devel::", 0); 9 start = ++s; /* We now allow -d:Module=Foo,Bar */ 56 while(isALNUM(*s) || *s==':') ++s; 9 if (*s != '=') 9 sv_catpv(sv, start); else { ###### sv_catpvn(sv, start, s-start); ###### Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); } 9 s += strlen(s); 9 my_setenv("PERL5DB", SvPV_nolen_const(sv)); } 9 if (!PL_perldb) { 9 PL_perldb = PERLDB_ALL; 9 init_debugger(); } 9 return s; case 'D': { #ifdef DEBUGGING 1 forbid_setid("-D"); 1 s++; 1 PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; #else /* !DEBUGGING */ if (ckWARN_d(WARN_DEBUGGING)) Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); for (s++; isALNUM(*s); s++) ; #endif 1 return s; } case 'h': 1 usage(PL_origargv[0]); 1 my_exit(0); case 'i': 3 Safefree(PL_inplace); #if defined(__CYGWIN__) /* do backup extension automagically */ if (*(s+1) == '\0') { PL_inplace = savepv(".bak"); return s+1; } #endif /* __CYGWIN__ */ 3 PL_inplace = savepv(s+1); 3 for (s = PL_inplace; *s && !isSPACE(*s); s++) ; 3 if (*s) { 1 *s++ = '\0'; 1 if (*s == '-') /* Additional switches on #! line. */ ###### s++; } 3 return s; case 'I': /* -I handled both here and in parse_body() */ 2 forbid_setid("-I"); 2 ++s; 2 while (*s && isSPACE(*s)) ###### ++s; 2 if (*s) { 2 char *e, *p; 2 p = s; /* ignore trailing spaces (possibly followed by other switches) */ 2 do { 2 for (e = p; *e && !isSPACE(*e); e++) ; 2 p = e; 4 while (isSPACE(*p)) 2 p++; 2 } while (*p && *p != '-'); 2 e = savepvn(s, e-s); 2 incpush(e, TRUE, TRUE, FALSE, FALSE); 2 Safefree(e); 2 s = p; 2 if (*s == '-') 1 s++; } else ###### Perl_croak(aTHX_ "No directory specified for -I"); 2 return s; case 'l': 1245 PL_minus_l = TRUE; 1245 s++; 1245 if (PL_ors_sv) { ###### SvREFCNT_dec(PL_ors_sv); ###### PL_ors_sv = Nullsv; } 1245 if (isDIGIT(*s)) { 1 I32 flags = 0; 1 STRLEN numlen; 1 PL_ors_sv = newSVpvn("\n",1); 1 numlen = 3 + (*s == '0'); 1 *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); 1 s += numlen; } else { 1244 if (RsPARA(PL_rs)) { ###### PL_ors_sv = newSVpvn("\n\n",2); } else { 1244 PL_ors_sv = newSVsv(PL_rs); } } 1245 return s; case 'A': 5 forbid_setid("-A"); 5 if (!PL_preambleav) 5 PL_preambleav = newAV(); 5 s++; { 5 char *start = s; 5 SV *sv = newSVpv("use assertions::activate", 24); 5 while(isALNUM(*s) || *s == ':') ++s; 5 if (s != start) { ###### sv_catpvn(sv, "::", 2); ###### sv_catpvn(sv, start, s-start); } 5 if (*s == '=') { 4 Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); 4 s+=strlen(s); } 1 else if (*s != '\0') { ###### Perl_croak(aTHX_ "Can't use '%c' after -A%.*s", *s, s-start, start); } 5 av_push(PL_preambleav, sv); 5 return s; } case 'M': 694 forbid_setid("-M"); /* XXX ? */ /* FALL THROUGH */ case 'm': 696 forbid_setid("-m"); /* XXX ? */ 696 if (*++s) { 696 char *start; 696 SV *sv; 696 const char *use = "use "; /* -M-foo == 'no foo' */ /* Leading space on " no " is deliberate, to make both possibilities the same length. */ 696 if (*s == '-') { use = " no "; ++s; } 696 sv = newSVpvn(use,4); 696 start = s; /* We allow -M'Module qw(Foo Bar)' */ 10854 while(isALNUM(*s) || *s==':') ++s; 696 if (*s != '=') { 605 sv_catpv(sv, start); 605 if (*(start-1) == 'm') { 1 if (*s != '\0') ###### Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); 1 sv_catpv( sv, " ()"); } } else { 91 if (s == start) ###### Perl_croak(aTHX_ "Module name required with -%c option", s[-1]); 91 sv_catpvn(sv, start, s-start); 91 sv_catpv(sv, " split(/,/,q"); 91 sv_catpvn(sv, "\0)", 1); /* Use NUL as q//-delimiter. */ 91 sv_catpv(sv, ++s); 91 sv_catpvn(sv, "\0)", 2); } 696 s += strlen(s); 696 if (!PL_preambleav) 693 PL_preambleav = newAV(); 696 av_push(PL_preambleav, sv); } else ###### Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); 696 return s; case 'n': 11 PL_minus_n = TRUE; 11 s++; 11 return s; case 'p': 10 PL_minus_p = TRUE; 10 s++; 10 return s; case 's': 2 forbid_setid("-s"); 2 PL_doswitches = TRUE; 2 s++; 2 return s; case 't': 2 if (!PL_tainting) ###### TOO_LATE_FOR('t'); 2 s++; 2 return s; case 'T': 36 if (!PL_tainting) ###### TOO_LATE_FOR('T'); 36 s++; 36 return s; case 'u': #ifdef MACOS_TRADITIONAL Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); #endif ###### PL_do_undump = TRUE; ###### s++; ###### return s; case 'U': 2 PL_unsafe = TRUE; 2 s++; 2 return s; case 'v': 1 if (!sv_derived_from(PL_patchlevel, "version")) 1 (void *)upg_version(PL_patchlevel); #if !defined(DGUX) 1 PerlIO_printf(PerlIO_stdout(), Perl_form(aTHX_ "\nThis is perl, %"SVf" built for %s", vstringify(PL_patchlevel), ARCHNAME)); #else /* DGUX */ /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ PerlIO_printf(PerlIO_stdout(), Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", vstringify(PL_patchlevel))); PerlIO_printf(PerlIO_stdout(), Perl_form(aTHX_ " built under %s at %s %s\n", OSNAME, __DATE__, __TIME__)); PerlIO_printf(PerlIO_stdout(), Perl_form(aTHX_ " OS Specific Release: %s\n", OSVERS)); #endif /* !DGUX */ #if defined(LOCAL_PATCH_COUNT) 1 if (LOCAL_PATCH_COUNT > 0) 1 PerlIO_printf(PerlIO_stdout(), "\n(with %d registered patch%s, " "see perl -V for more detail)", (int)LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); #endif 1 PerlIO_printf(PerlIO_stdout(), "\n\nCopyright 1987-2005, Larry Wall\n"); #ifdef MACOS_TRADITIONAL PerlIO_printf(PerlIO_stdout(), "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" "maintained by Chris Nandor\n"); #endif #ifdef MSDOS PerlIO_printf(PerlIO_stdout(), "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); #endif #ifdef DJGPP PerlIO_printf(PerlIO_stdout(), "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); #endif #ifdef OS2 PerlIO_printf(PerlIO_stdout(), "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); #endif #ifdef atarist PerlIO_printf(PerlIO_stdout(), "atariST series port, ++jrb bammi@cadence.com\n"); #endif #ifdef __BEOS__ PerlIO_printf(PerlIO_stdout(), "BeOS port Copyright Tom Spindler, 1997-1999\n"); #endif #ifdef MPE PerlIO_printf(PerlIO_stdout(), "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); #endif #ifdef OEMVS PerlIO_printf(PerlIO_stdout(), "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); #endif #ifdef __VOS__ PerlIO_printf(PerlIO_stdout(), "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); #endif #ifdef __OPEN_VM PerlIO_printf(PerlIO_stdout(), "VM/ESA port by Neale Ferguson, 1998-1999\n"); #endif #ifdef POSIX_BC PerlIO_printf(PerlIO_stdout(), "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); #endif #ifdef __MINT__ PerlIO_printf(PerlIO_stdout(), "MiNT port by Guido Flohr, 1997-1999\n"); #endif #ifdef EPOC PerlIO_printf(PerlIO_stdout(), "EPOC port by Olaf Flebbe, 1999-2002\n"); #endif #ifdef UNDER_CE PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); wce_hitreturn(); #endif #ifdef SYMBIAN PerlIO_printf(PerlIO_stdout(), "Symbian port by Nokia, 2004-2005\n"); #endif #ifdef BINARY_BUILD_NOTICE BINARY_BUILD_NOTICE; #endif 1 PerlIO_printf(PerlIO_stdout(), "\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 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.org/, the Perl Home Page.\n\n"); 1 my_exit(0); case 'w': 513 if (! (PL_dowarn & G_WARN_ALL_MASK)) 511 PL_dowarn |= G_WARN_ON; 513 s++; 513 return s; case 'W': 21 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; 21 if (!specialWARN(PL_compiling.cop_warnings)) ###### SvREFCNT_dec(PL_compiling.cop_warnings); 21 PL_compiling.cop_warnings = pWARN_ALL ; 21 s++; 21 return s; case 'X': 21 PL_dowarn = G_WARN_ALL_OFF; 21 if (!specialWARN(PL_compiling.cop_warnings)) ###### SvREFCNT_dec(PL_compiling.cop_warnings); 21 PL_compiling.cop_warnings = pWARN_NONE ; 21 s++; 21 return s; case '*': case ' ': 7 if (s[1] == '-') /* Additional switches on #! line. */ ###### return s+2; ###### 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 'P': ###### if (PL_preprocess) ###### return s+1; /* FALL THROUGH */ default: ###### Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); } 399 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 Perl_my_unexec(pTHX) ###### { #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$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ # else ###### ABORT(); /* for use with undump */ # endif #endif } /* initialize curinterp */ STATIC void S_init_interp(pTHX) ###### { #ifdef MULTIPLICITY # define PERLVAR(var,type) # define PERLVARA(var,n,type) # if defined(PERL_IMPLICIT_CONTEXT) # if defined(USE_5005THREADS) # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; # else /* !USE_5005THREADS */ # define PERLVARI(var,type,init) aTHX->var = init; # define PERLVARIC(var,type,init) aTHX->var = init; # endif /* USE_5005THREADS */ # else # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; # endif # include "intrpvar.h" # ifndef USE_5005THREADS # include "thrdvar.h" # endif # undef PERLVAR # undef PERLVARA # undef PERLVARI # undef PERLVARIC #else # define PERLVAR(var,type) # define PERLVARA(var,n,type) # define PERLVARI(var,type,init) PL_##var = init; # define PERLVARIC(var,type,init) PL_##var = init; # include "intrpvar.h" # ifndef USE_5005THREADS # include "thrdvar.h" # endif # undef PERLVAR # undef PERLVARA # undef PERLVARI # undef PERLVARIC #endif } STATIC void S_init_main_stash(pTHX) 4503 { 4503 GV *gv; 4503 PL_curstash = PL_defstash = newHV(); 4503 PL_curstname = newSVpvn("main",4); 4503 gv = gv_fetchpv("main::",TRUE, SVt_PVHV); 4503 SvREFCNT_dec(GvHV(gv)); 4503 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); 4503 SvREADONLY_on(gv); 4503 Perl_hv_name_set(aTHX_ PL_defstash, "main", 4, 0); 4503 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); 4503 GvMULTI_on(PL_incgv); 4503 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ 4503 GvMULTI_on(PL_hintgv); 4503 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); 4503 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); 4503 GvMULTI_on(PL_errgv); 4503 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ 4503 GvMULTI_on(PL_replgv); 4503 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ #ifdef PERL_DONT_CREATE_GVSV gv_SVadd(PL_errgv); #endif 4503 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ 4503 sv_setpvn(ERRSV, "", 0); 4503 PL_curstash = PL_defstash; 4503 CopSTASH_set(&PL_compiling, PL_defstash); 4503 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); 4503 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); /* We must init $/ before switches are processed. */ 4503 sv_setpvn(get_sv("/", TRUE), "\n", 1); } /* PSz 18 Nov 03 fdscript now global but do not change prototype */ STATIC void S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv) 4500 { #ifndef IAMSUID 4500 const char *quote; 4500 const char *code; 4500 const char *cpp_discard_flag; 4500 const char *perl; #endif dVAR; 4500 PL_fdscript = -1; 4500 PL_suidscript = -1; 4500 if (PL_e_script) { 2034 PL_origfilename = savepvn("-e", 2); } else { /* if find_script() returns, it returns a malloc()-ed value */ 2466 scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); 2466 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { ###### const char *s = scriptname + 8; ###### PL_fdscript = atoi(s); ###### while (isDIGIT(*s)) ###### s++; ###### if (*s) { /* PSz 18 Feb 04 * Tell apart "normal" usage of fdscript, e.g. * with bash on FreeBSD: * perl <( echo '#!perl -DA'; echo 'print "$0\n"') * from usage in suidperl. * Does any "normal" usage leave garbage after the number??? * Is it a mistake to use a similar /dev/fd/ construct for * suidperl? */ ###### PL_suidscript = 1; /* PSz 20 Feb 04 * Be supersafe and do some sanity-checks. * Still, can we be sure we got the right thing? */ ###### if (*s != '/') { ###### Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); } ###### if (! *(s+1)) { ###### Perl_croak(aTHX_ "Missing (suid) fd script name\n"); } ###### scriptname = savepv(s + 1); ###### Safefree(PL_origfilename); ###### PL_origfilename = (char *)scriptname; } } } 4500 CopFILE_free(PL_curcop); 4500 CopFILE_set(PL_curcop, PL_origfilename); 4500 if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') 19 scriptname = (char *)""; 4500 if (PL_fdscript >= 0) { ###### PL_rsfp = PerlIO_fdopen(PL_fdscript,PERL_SCRIPT_MODE); # if defined(HAS_FCNTL) && defined(F_SETFD) ###### if (PL_rsfp) /* ensure close-on-exec */ ###### fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); # endif } #ifdef IAMSUID else { Perl_croak(aTHX_ "sperl needs fd script\n" "You should not call sperl directly; do you need to " "change a #! line\nfrom sperl to perl?\n"); /* PSz 11 Nov 03 * Do not open (or do other fancy stuff) while setuid. * Perl does the open, and hands script to suidperl on a fd; * suidperl only does some checks, sets up UIDs and re-execs * perl with that fd as it has always done. */ } if (PL_suidscript != 1) { Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); } #else /* IAMSUID */ 4500 else if (PL_preprocess) { 3 const char *cpp_cfg = CPPSTDIN; 3 SV *cpp = newSVpvn("",0); 3 SV *cmd = NEWSV(0,0); 3 if (cpp_cfg[0] == 0) /* PERL_MICRO? */ ###### Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); 3 if (strEQ(cpp_cfg, "cppstdin")) ###### Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); 3 sv_catpv(cpp, cpp_cfg); # ifndef VMS 3 sv_catpvn(sv, "-I", 2); 3 sv_catpv(sv,PRIVLIB_EXP); # endif DEBUG_P(PerlIO_printf(Perl_debug_log, "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", scriptname, SvPVX_const (cpp), SvPVX_const (sv), 3 CPPMINUS)); # if defined(MSDOS) || defined(WIN32) || defined(VMS) quote = "\""; # else 3 quote = "'"; # endif # ifdef VMS cpp_discard_flag = ""; # else 3 cpp_discard_flag = "-C"; # endif # ifdef OS2 perl = os2_execname(aTHX); # else 3 perl = PL_origargv[0]; # endif /* This strips off Perl comments which might interfere with the C pre-processor, including #!. #line directives are deliberately stripped to avoid confusion with Perl's version of #line. FWP played some golf with it so it will fit into VMS's 255 character buffer. */ 3 if( PL_doextract ) 1 code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; else 2 code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; 3 Perl_sv_setpvf(aTHX_ cmd, "\ %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", perl, quote, code, quote, scriptname, cpp, cpp_discard_flag, sv, CPPMINUS); 3 PL_doextract = FALSE; DEBUG_P(PerlIO_printf(Perl_debug_log, "PL_preprocess: cmd=\"%s\"\n", 3 SvPVX_const(cmd))); 3 PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); 3 SvREFCNT_dec(cmd); 3 SvREFCNT_dec(cpp); } 4497 else if (!*scriptname) { 19 forbid_setid("program input from stdin"); 19 PL_rsfp = PerlIO_stdin(); } else { 4478 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); # if defined(HAS_FCNTL) && defined(F_SETFD) 4478 if (PL_rsfp) /* ensure close-on-exec */ 4478 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); # endif } #endif /* IAMSUID */ 4500 if (!PL_rsfp) { /* PSz 16 Sep 03 Keep neat error message */ ###### Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", CopFILE(PL_curcop), Strerror(errno)); } } /* Mention * I_SYSSTATVFS HAS_FSTATVFS * I_SYSMOUNT * I_STATFS HAS_FSTATFS HAS_GETFSSTAT * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT * here so that metaconfig picks them up. */ #ifdef IAMSUID STATIC int S_fd_on_nosuid_fs(pTHX_ int fd) { /* PSz 27 Feb 04 * We used to do this as "plain" user (after swapping UIDs with setreuid); * but is needed also on machines without setreuid. * Seems safe enough to run as root. */ int check_okay = 0; /* able to do all the required sys/libcalls */ int on_nosuid = 0; /* the fd is on a nosuid fs */ /* PSz 12 Nov 03 * Need to check noexec also: nosuid might not be set, the average * sysadmin would say that nosuid is irrelevant once he sets noexec. */ int on_noexec = 0; /* the fd is on a noexec fs */ /* * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). * fstatvfs() is UNIX98. * fstatfs() is 4.3 BSD. * ustat()+getmnt() is pre-4.3 BSD. * getmntent() is O(number-of-mounted-filesystems) and can hang on * an irrelevant filesystem while trying to reach the right one. */ #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ defined(HAS_FSTATVFS) # define FD_ON_NOSUID_CHECK_OKAY struct statvfs stfs; check_okay = fstatvfs(fd, &stfs) == 0; on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); #ifdef ST_NOEXEC /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented on platforms where it is present. */ on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); #endif # endif /* fstatvfs */ # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ defined(PERL_MOUNT_NOSUID) && \ defined(PERL_MOUNT_NOEXEC) && \ defined(HAS_FSTATFS) && \ defined(HAS_STRUCT_STATFS) && \ defined(HAS_STRUCT_STATFS_F_FLAGS) # define FD_ON_NOSUID_CHECK_OKAY struct statfs stfs; check_okay = fstatfs(fd, &stfs) == 0; on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); # endif /* fstatfs */ # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ defined(PERL_MOUNT_NOSUID) && \ defined(PERL_MOUNT_NOEXEC) && \ defined(HAS_FSTAT) && \ defined(HAS_USTAT) && \ defined(HAS_GETMNT) && \ defined(HAS_STRUCT_FS_DATA) && \ defined(NOSTAT_ONE) # define FD_ON_NOSUID_CHECK_OKAY Stat_t fdst; if (fstat(fd, &fdst) == 0) { struct ustat us; if (ustat(fdst.st_dev, &us) == 0) { struct fs_data fsd; /* NOSTAT_ONE here because we're not examining fields which * vary between that case and STAT_ONE. */ if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { size_t cmplen = sizeof(us.f_fname); if (sizeof(fsd.fd_req.path) < cmplen) cmplen = sizeof(fsd.fd_req.path); if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && fdst.st_dev == fsd.fd_req.dev) { check_okay = 1; on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; } } } } } # endif /* fstat+ustat+getmnt */ # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ defined(HAS_GETMNTENT) && \ defined(HAS_HASMNTOPT) && \ defined(MNTOPT_NOSUID) && \ defined(MNTOPT_NOEXEC) # define FD_ON_NOSUID_CHECK_OKAY FILE *mtab = fopen("/etc/mtab", "r"); struct mntent *entry; Stat_t stb, fsb; if (mtab && (fstat(fd, &stb) == 0)) { while (entry = getmntent(mtab)) { if (stat(entry->mnt_dir, &fsb) == 0 && fsb.st_dev == stb.st_dev) { /* found the filesystem */ check_okay = 1; if (hasmntopt(entry, MNTOPT_NOSUID)) on_nosuid = 1; if (hasmntopt(entry, MNTOPT_NOEXEC)) on_noexec = 1; break; } /* A single fs may well fail its stat(). */ } } if (mtab) fclose(mtab); # endif /* getmntent+hasmntopt */ if (!check_okay) Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); if (on_nosuid) Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); if (on_noexec) Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); return ((!check_okay) || on_nosuid || on_noexec); } #endif /* IAMSUID */ STATIC void S_validate_suid(pTHX_ const char *validarg, const char *scriptname) 4500 { dVAR; #ifdef IAMSUID /* int which; */ #endif /* IAMSUID */ /* 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. * PSz 27 Feb 04 * Description/comments above do not match current workings: * suidperl must be hardlinked to sperlN.NNN (that is what we exec); * suidperl called with script open and name changed to /dev/fd/N/X; * suidperl croaks if script is not setuid; * making perl setuid would be a huge security risk (and yes, that * would lose any euid we might have had). * * 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 const char *s, *s2; if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { I32 len; const char *linestr; #ifdef IAMSUID if (PL_fdscript < 0 || PL_suidscript != 1) Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ /* PSz 11 Nov 03 * Since the script is opened by perl, not suidperl, some of these * checks are superfluous. Leaving them in probably does not lower * security(?!). */ /* PSz 27 Feb 04 * Do checks even for systems with no HAS_SETREUID. * We used to swap, then re-swap UIDs with #ifdef HAS_SETREUID if (setreuid(PL_euid,PL_uid) < 0 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) Perl_croak(aTHX_ "Can't swap uid and euid"); #endif #ifdef HAS_SETREUID if (setreuid(PL_uid,PL_euid) < 0 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) Perl_croak(aTHX_ "Can't reswap uid and euid"); #endif */ /* 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. * * So, access() is pretty useless... but not harmful... do anyway. */ if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ Perl_croak(aTHX_ "Can't access() script\n"); } /* 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. * * PSz 24 Feb 04 * As the script is opened by perl, not suidperl, we do not need to * care much about access rights. * * The 'script changed' check is needed, or we can get lied to * about $0 with e.g. * suidperl /dev/fd/4//bin/x 4 4000) Perl_croak(aTHX_ "Very long #! line"); /* Allow more than a single space after #! */ while (isSPACE(*s)) s++; /* Sanity check on buffer end */ while ((*s) && !isSPACE(*s)) s++; for (s2 = s; (s2 > linestr && (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' || s2[-1] == '-')); s2--) ; /* Sanity check on buffer start */ if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && (s-9 < linestr || strnNE(s-9,"perl",4)) ) Perl_croak(aTHX_ "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. */ /* * The way validarg was set up, we rely on the kernel to start * scripts with argv[1] set to contain all #! line switches (the * whole line). */ /* * Check that we got all the arguments listed in the #! line (not * just that there are no extraneous arguments). Might not matter * much, as switches from #! line seem to be acted upon (also), and * so may be checked and trapped in perl. But, security checks must * be done in suidperl and not deferred to perl. Note that suidperl * does not get around to parsing (and checking) the switches on * the #! line (but execs perl sooner). * Allow (require) a trailing newline (which may be of two * characters on some architectures?) (but no other trailing * whitespace). */ len = strlen(validarg); if (strEQ(validarg," PHOOEY ") || strnNE(s,validarg,len) || !isSPACE(s[len]) || !(strlen(s) == len+1 || (strlen(s) == len+2 && isSPACE(s[len+1])))) Perl_croak(aTHX_ "Args must match #! line"); #ifndef IAMSUID if (PL_fdscript < 0 && PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && PL_euid == PL_statbuf.st_uid) if (!PL_do_undump) Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); #endif /* IAMSUID */ if (PL_fdscript < 0 && PL_euid) { /* oops, we're not the setuid root perl */ /* PSz 18 Feb 04 * When root runs a setuid script, we do not go through the same * steps of execing sperl and then perl with fd scripts, but * simply set up UIDs within the same perl invocation; so do * not have the same checks (on options, whatever) that we have * for plain users. No problem really: would have to be a script * that does not actually work for plain users; and if root is * foolish and can be persuaded to run such an unsafe script, he * might run also non-setuid ones, and deserves what he gets. * * Or, we might drop the PL_euid check above (and rely just on * PL_fdscript to avoid loops), and do the execs * even for root. */ #ifndef IAMSUID int which; /* PSz 11 Nov 03 * Pass fd script to suidperl. * Exec suidperl, substituting fd script for scriptname. * Pass script name as "subdir" of fd, which perl will grok; * in fact will use that to distinguish this from "normal" * usage, see comments above. */ PerlIO_rewind(PL_rsfp); PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ /* PSz 27 Feb 04 Sanity checks on scriptname */ if ((!scriptname) || (!*scriptname) ) { Perl_croak(aTHX_ "No setuid script name\n"); } if (*scriptname == '-') { Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); /* Or we might confuse it with an option when replacing * name in argument list, below (though we do pointer, not * string, comparisons). */ } for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; if (!PL_origargv[which]) { Perl_croak(aTHX_ "Can't change argv to have fd script\n"); } PL_origargv[which] = savepv(Perl_form(aTHX_ "/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 PERL_FPU_PRE_EXEC PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, (int)PERL_REVISION, (int)PERL_VERSION, (int)PERL_SUBVERSION), PL_origargv); PERL_FPU_POST_EXEC #endif /* IAMSUID */ Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); } if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { /* PSz 26 Feb 04 * This seems back to front: we try HAS_SETEGID first; if not available * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK * in the sense that we only want to set EGID; but are there any machines * with either of the latter, but not the former? Same with UID, later. */ #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) Perl_croak(aTHX_ "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) Perl_croak(aTHX_ "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) Perl_croak(aTHX_ "Can't do seteuid!\n"); } init_ids(); if (!cando(S_IXUSR,TRUE,&PL_statbuf)) Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ } #ifdef IAMSUID else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); else if (PL_fdscript < 0 || PL_suidscript != 1) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); else { /* PSz 16 Sep 03 Keep neat error message */ Perl_croak(aTHX_ "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.) */ /* * It might be thought that using setresgid and/or setresuid (changed to * set the saved IDs) above might obviate the need to exec, and we could * go on to "do the perl thing". * * Is there such a thing as "saved GID", and is that set for setuid (but * not setgid) execution like suidperl? Without exec, it would not be * cleared for setuid (but not setgid) scripts (or might need a dummy * setresgid). * * We need suidperl to do the exact same argument checking that perl * does. Thus it cannot be very small; while it could be significantly * smaller, it is safer (simpler?) to make it essentially the same * binary as perl (but they are not identical). - Maybe could defer that * check to the invoked perl, and suidperl be a tiny wrapper instead; * but prefer to do thorough checks in suidperl itself. Such deferral * would make suidperl security rely on perl, a design no-no. * * Setuid things should be short and simple, thus easy to understand and * verify. They should do their "own thing", without influence by * attackers. It may help if their internal execution flow is fixed, * regardless of platform: it may be best to exec anyway. * * Suidperl should at least be conceptually simple: a wrapper only, * never to do any real perl. Maybe we should put * #ifdef IAMSUID * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); * #endif * into the perly bits. */ PerlIO_rewind(PL_rsfp); PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ /* PSz 11 Nov 03 * Keep original arguments: suidperl already has fd script. */ /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ /* if (!PL_origargv[which]) { */ /* errno = EPERM; */ /* Perl_croak(aTHX_ "Permission denied\n"); */ /* } */ /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/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 PERL_FPU_PRE_EXEC PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, (int)PERL_REVISION, (int)PERL_VERSION, (int)PERL_SUBVERSION), PL_origargv);/* try again */ PERL_FPU_POST_EXEC Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); #endif /* IAMSUID */ #else /* !DOSUID */ 4500 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW ###### 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) ###### Perl_croak(aTHX_ "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 */ 4500 (void)validarg; 4500 (void)scriptname; } STATIC void S_find_beginning(pTHX) 7 { 7 register char *s; 7 register const char *s2; #ifdef MACOS_TRADITIONAL int maclines = 0; #endif /* skip forward in input to the real script? */ 7 forbid_setid("-x"); #ifdef MACOS_TRADITIONAL /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ while (PL_doextract || gMacPerl_AlwaysExtract) { if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { if (!gMacPerl_AlwaysExtract) Perl_croak(aTHX_ "No Perl script found in input\n"); if (PL_doextract) /* require explicit override ? */ if (!OverrideExtract(PL_origfilename)) Perl_croak(aTHX_ "User aborted script\n"); else PL_doextract = FALSE; /* Pater peccavi, file does not have #! */ PerlIO_rewind(PL_rsfp); break; } #else 860 while (PL_doextract) { 853 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) ###### Perl_croak(aTHX_ "No Perl script found in input\n"); #endif 853 s2 = s; 853 if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { 7 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ 7 PL_doextract = FALSE; 35 while (*s && !(isSPACE (*s) || *s == '#')) s++; 7 s2 = s; 14 while (*s == ' ' || *s == '\t') s++; 7 if (*s++ == '-') { 7 while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' ###### || s2[-1] == '_') s2--; 7 if (strnEQ(s2-4,"perl",4)) 14 while ((s = moreswitches(s))) ; } #ifdef MACOS_TRADITIONAL /* We are always searching for the #!perl line in MacPerl, * so if we find it, still keep the line count correct * by counting lines we already skipped over */ for (; maclines > 0 ; maclines--) PerlIO_ungetc(PL_rsfp, '\n'); break; /* gMacPerl_AlwaysExtract is false in MPW tool */ } else if (gMacPerl_AlwaysExtract) { ++maclines; #endif } } } STATIC void S_init_ids(pTHX) 4503 { 4503 PL_uid = PerlProc_getuid(); 4503 PL_euid = PerlProc_geteuid(); 4503 PL_gid = PerlProc_getgid(); 4503 PL_egid = PerlProc_getegid(); #ifdef VMS PL_uid |= PL_gid << 16; PL_euid |= PL_egid << 16; #endif /* Should not happen: */ 4503 CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); 4503 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); /* BUG */ /* PSz 27 Feb 04 * Should go by suidscript, not uid!=euid: why disallow * system("ls") in scripts run from setuid things? * Or, is this run before we check arguments and set suidscript? * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? * (We never have suidscript, can we be sure to have fdscript?) * Or must then go by UID checks? See comments in forbid_setid also. */ } /* This is used very early in the lifetime of the program, * before even the options are parsed, so PL_tainting has * not been initialized properly. */ bool Perl_doing_taint(int argc, char *argv[], char *envp[]) ###### { #ifndef PERL_IMPLICIT_SYS /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia * before we have an interpreter-- and the whole point of this * function is to be called at such an early stage. If you are on * a system with PERL_IMPLICIT_SYS but you do have a concept of * "tainted because running with altered effective ids', you'll * have to add your own checks somewhere in here. The two most * known samples of 'implicitness' are Win32 and NetWare, neither * of which has much of concept of 'uids'. */ ###### int uid = PerlProc_getuid(); ###### int euid = PerlProc_geteuid(); ###### int gid = PerlProc_getgid(); ###### int egid = PerlProc_getegid(); ###### (void)envp; #ifdef VMS uid |= gid << 16; euid |= egid << 16; #endif ###### if (uid && (euid != uid || egid != gid)) ###### return 1; #endif /* !PERL_IMPLICIT_SYS */ /* This is a really primitive check; environment gets ignored only * if -T are the first chars together; otherwise one gets * "Too late" message. */ ###### if ( argc > 1 && argv[1][0] == '-' && (argv[1][1] == 't' || argv[1][1] == 'T') ) ###### return 1; ###### return 0; } STATIC void S_forbid_setid(pTHX_ const char *s) 6283 { #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW if (PL_euid != PL_uid) Perl_croak(aTHX_ "No %s allowed while running setuid", s); if (PL_egid != PL_gid) Perl_croak(aTHX_ "No %s allowed while running setgid", s); #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ /* PSz 29 Feb 04 * Checks for UID/GID above "wrong": why disallow * perl -e 'print "Hello\n"' * from within setuid things?? Simply drop them: replaced by * fdscript/suidscript and #ifdef IAMSUID checks below. * * This may be too late for command-line switches. Will catch those on * the #! line, after finding the script name and setting up * fdscript/suidscript. Note that suidperl does not get around to * parsing (and checking) the switches on the #! line, but checks that * the two sets are identical. * * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or * instead, or would that be "too late"? (We never have suidscript, can * we be sure to have fdscript?) * * Catch things with suidscript (in descendant of suidperl), even with * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, * below; but I am paranoid. * * Also see comments about root running a setuid script, elsewhere. */ 6283 if (PL_suidscript >= 0) ###### Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", s); #ifdef IAMSUID /* PSz 11 Nov 03 Catch it in suidperl, always! */ Perl_croak(aTHX_ "No %s allowed in suidperl", s); #endif /* IAMSUID */ } void Perl_init_debugger(pTHX) 10 { 10 HV *ostash = PL_curstash; 10 PL_curstash = PL_debstash; 10 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV)))); 10 AvREAL_off(PL_dbargs); 10 PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV); 10 PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV); 10 PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV)); 10 PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV))); 10 sv_setiv(PL_DBsingle, 0); 10 PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV))); 10 sv_setiv(PL_DBtrace, 0); 10 PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV))); 10 sv_setiv(PL_DBsignal, 0); 10 PL_DBassertion = GvSV((gv_fetchpv("DB::assertion", GV_ADDMULTI, SVt_PV))); 10 sv_setiv(PL_DBassertion, 0); 10 PL_curstash = ostash; } #ifndef STRESS_REALLOC #define REASONABLE(size) (size) #else #define REASONABLE(size) (1) /* unreasonable */ #endif void Perl_init_stacks(pTHX) 4503 { /* start with 128-item stack and 8K cxstack */ 4503 PL_curstackinfo = new_stackinfo(REASONABLE(128), REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); 4503 PL_curstackinfo->si_type = PERLSI_MAIN; 4503 PL_curstack = PL_curstackinfo->si_stack; 4503 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 4503 PL_stack_base = AvARRAY(PL_curstack); 4503 PL_stack_sp = PL_stack_base; 4503 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 4503 New(50,PL_tmps_stack,REASONABLE(128),SV*); 4503 PL_tmps_floor = -1; 4503 PL_tmps_ix = -1; 4503 PL_tmps_max = REASONABLE(128); 4503 New(54,PL_markstack,REASONABLE(32),I32); 4503 PL_markstack_ptr = PL_markstack; 4503 PL_markstack_max = PL_markstack + REASONABLE(32); 4503 SET_MARK_OFFSET; 4503 New(54,PL_scopestack,REASONABLE(32),I32); 4503 PL_scopestack_ix = 0; 4503 PL_scopestack_max = REASONABLE(32); 4503 New(54,PL_savestack,REASONABLE(128),ANY); 4503 PL_savestack_ix = 0; 4503 PL_savestack_max = REASONABLE(128); } #undef REASONABLE STATIC void S_nuke_stacks(pTHX) 4549 { 6483 while (PL_curstackinfo->si_next) 1934 PL_curstackinfo = PL_curstackinfo->si_next; 11032 while (PL_curstackinfo) { 6483 PERL_SI *p = PL_curstackinfo->si_prev; /* curstackinfo->si_stack got nuked by sv_free_arenas() */ 6483 Safefree(PL_curstackinfo->si_cxstack); 6483 Safefree(PL_curstackinfo); 6483 PL_curstackinfo = p; } 4549 Safefree(PL_tmps_stack); 4549 Safefree(PL_markstack); 4549 Safefree(PL_scopestack); 4549 Safefree(PL_savestack); } STATIC void S_init_lexer(pTHX) 4500 { 4500 PerlIO *tmpfp; 4500 tmpfp = PL_rsfp; 4500 PL_rsfp = Nullfp; 4500 lex_start(PL_linestr); 4500 PL_rsfp = tmpfp; 4500 PL_subname = newSVpvn("main",4); } STATIC void S_init_predump_symbols(pTHX) 4500 { 4500 GV *tmpgv; 4500 IO *io; 4500 sv_setpvn(get_sv("\"", TRUE), " ", 1); 4500 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); 4500 GvMULTI_on(PL_stdingv); 4500 io = GvIOp(PL_stdingv); 4500 IoTYPE(io) = IoTYPE_RDONLY; 4500 IoIFP(io) = PerlIO_stdin(); 4500 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); 4500 GvMULTI_on(tmpgv); 4500 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); 4500 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); 4500 GvMULTI_on(tmpgv); 4500 io = GvIOp(tmpgv); 4500 IoTYPE(io) = IoTYPE_WRONLY; 4500 IoOFP(io) = IoIFP(io) = PerlIO_stdout(); 4500 setdefout(tmpgv); 4500 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); 4500 GvMULTI_on(tmpgv); 4500 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); 4500 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); 4500 GvMULTI_on(PL_stderrgv); 4500 io = GvIOp(PL_stderrgv); 4500 IoTYPE(io) = IoTYPE_WRONLY; 4500 IoOFP(io) = IoIFP(io) = PerlIO_stderr(); 4500 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); 4500 GvMULTI_on(tmpgv); 4500 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); 4500 PL_statname = NEWSV(66,0); /* last filename we did stat on */ 4500 Safefree(PL_osname); 4500 PL_osname = savepv(OSNAME); } void Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) 4501 { 4501 char *s; 4501 argc--,argv++; /* skip name of script */ 4501 if (PL_doswitches) { 8 for (; argc > 0 && **argv == '-'; argc--,argv++) { 3 if (!argv[0][1]) ###### break; 3 if (argv[0][1] == '-' && !argv[0][2]) { ###### argc--,argv++; ###### break; } 3 if ((s = strchr(argv[0], '='))) { 2 *s++ = '\0'; 2 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); } else 1 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); } } 4501 if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) { 4501 GvMULTI_on(PL_argvgv); 4501 (void)gv_AVadd(PL_argvgv); 4501 av_clear(GvAVn(PL_argvgv)); 8267 for (; argc > 0; argc--,argv++) { 1883 SV *sv = newSVpv(argv[0],0); 1883 av_push(GvAVn(PL_argvgv),sv); 1883 if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { 1883 if (PL_unicode & PERL_UNICODE_ARGV_FLAG) 1 SvUTF8_on(sv); } 1883 if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ ###### (void)sv_utf8_decode(sv); } } } STATIC void S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) 4500 { dVAR; 4500 GV* tmpgv; 4500 PL_toptarget = NEWSV(0,0); 4500 sv_upgrade(PL_toptarget, SVt_PVFM); 4500 sv_setpvn(PL_toptarget, "", 0); 4500 PL_bodytarget = NEWSV(0,0); 4500 sv_upgrade(PL_bodytarget, SVt_PVFM); 4500 sv_setpvn(PL_bodytarget, "", 0); 4500 PL_formtarget = PL_bodytarget; 4500 TAINT; 4500 init_argv_symbols(argc,argv); 4500 if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) { #ifdef MACOS_TRADITIONAL /* $0 is not majick on a Mac */ sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); #else 4500 sv_setpv(GvSV(tmpgv),PL_origfilename); 4500 magicname("0", "0", 1); #endif } 4500 if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) { 4500 HV *hv; 4500 GvMULTI_on(PL_envgv); 4500 hv = GvHVn(PL_envgv); 4500 hv_magic(hv, Nullgv, PERL_MAGIC_env); #ifndef PERL_MICRO #ifdef USE_ENVIRON_ARRAY /* Note that if the supplied env parameter is actually a copy of the global environ then it may now point to free'd memory if the environment has been modified since. To avoid this problem we treat env==NULL as meaning 'use the default' */ 4500 if (!env) 4499 env = environ; 4500 if (env != environ # ifdef USE_ITHREADS && PL_curinterp == aTHX # endif ) { ###### environ[0] = Nullch; } 4500 if (env) { 4500 char** origenv = environ; 219184 char *s; 219184 SV *sv; 433868 for (; *env; env++) { 214684 if (!(s = strchr(*env,'=')) || s == *env) 214684 continue; #if defined(MSDOS) && !defined(DJGPP) *s = '\0'; (void)strupr(*env); *s = '='; #endif 214684 sv = newSVpv(s+1, 0); 214684 (void)hv_store(hv, *env, s - *env, sv, 0); 214684 if (env != environ) 210184 mg_set(sv); 214684 if (origenv != environ) { /* realloc has shifted us */ ###### env = (env - origenv) + environ; ###### origenv = environ; } } } #endif /* USE_ENVIRON_ARRAY */ #endif /* !PERL_MICRO */ } 4500 TAINT_NOT; 4500 if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) { 4500 SvREADONLY_off(GvSV(tmpgv)); 4500 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); 4500 SvREADONLY_on(GvSV(tmpgv)); } #ifdef THREADS_HAVE_PIDS PL_ppid = (IV)getppid(); #endif /* touch @F array to prevent spurious warnings 20020415 MJD */ 4500 if (PL_minus_a) { 4 (void) get_av("main::F", TRUE | GV_ADDMULTI); } /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ 4500 (void) get_av("main::-", TRUE | GV_ADDMULTI); 4500 (void) get_av("main::+", TRUE | GV_ADDMULTI); } STATIC void S_init_perllib(pTHX) 4500 { 4500 char *s; 4500 if (!PL_tainting) { #ifndef VMS 4456 s = PerlEnv_getenv("PERL5LIB"); 4456 if (s) 3878 incpush(s, TRUE, TRUE, TRUE, FALSE); else 578 incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, 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,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); else while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); #endif /* VMS */ } /* Use the ~-expanded versions of APPLLIB (undocumented), ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB */ #ifdef APPLLIB_EXP incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); #endif #ifdef ARCHLIB_EXP 4500 incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); #endif #ifdef MACOS_TRADITIONAL { Stat_t tmpstatbuf; SV * privdir = NEWSV(55, 0); char * macperl = PerlEnv_getenv("MACPERL"); if (!macperl) macperl = ""; Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); SvREFCNT_dec(privdir); } if (!PL_tainting) incpush(":", FALSE, FALSE, TRUE, FALSE); #else #ifndef PRIVLIB_EXP # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" #endif #if defined(WIN32) incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); #else 4500 incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); #endif #ifdef SITEARCH_EXP /* sitearch is always relative to sitelib on Windows for * DLL-based path intuition to work correctly */ # if !defined(WIN32) 4500 incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); # endif #endif #ifdef SITELIB_EXP # if defined(WIN32) /* this picks up sitearch as well */ incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); # else 4500 incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); # endif #endif #ifdef SITELIB_STEM /* Search for version-specific dirs below here */ 4500 incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); #endif #ifdef PERL_VENDORARCH_EXP /* vendorarch is always relative to vendorlib on Windows for * DLL-based path intuition to work correctly */ # if !defined(WIN32) incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); # endif #endif #ifdef PERL_VENDORLIB_EXP # if defined(WIN32) incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ # else incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); # endif #endif #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); #endif #ifdef PERL_OTHERLIBDIRS incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); #endif 4500 if (!PL_tainting) 4456 incpush(".", FALSE, FALSE, TRUE, FALSE); #endif /* MACOS_TRADITIONAL */ } #if defined(DOSISH) || defined(EPOC) || defined(SYMBIAN) # define PERLLIB_SEP ';' #else # if defined(VMS) # define PERLLIB_SEP '|' # else # if defined(MACOS_TRADITIONAL) # define PERLLIB_SEP ',' # else # define PERLLIB_SEP ':' # endif # endif #endif #ifndef PERLLIB_MANGLE # define PERLLIB_MANGLE(s,n) (s) #endif /* Push a directory onto @INC if it exists. Generate a new SV if we do this, to save needing to copy the SV we push onto @INC */ STATIC SV * S_incpush_if_exists(pTHX_ SV *dir) 17430 { 17430 Stat_t tmpstatbuf; 17430 if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) { ###### av_push(GvAVn(PL_incgv), dir); ###### dir = NEWSV(0,0); } 17430 return dir; } STATIC void S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, bool canrelocate) 34218 { 34218 SV *subdir = Nullsv; 34218 const char *p = dir; 34218 if (!p || !*p) 1125 return; 32517 if (addsubdirs || addoldvers) { 10059 subdir = NEWSV(0,0); } /* Break at all separators */ 65287 while (p && *p) { 32770 SV *libdir = NEWSV(55,0); 32770 const char *s; /* skip any consecutive separators */ 32770 if (usesep) { 29964 while ( *p == PERLLIB_SEP ) { /* Uncomment the next line for PATH semantics */ /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ ###### p++; } } 32770 if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) { 253 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), (STRLEN)(s - p)); 253 p = s + 1; } else { 32517 sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); 32517 p = Nullch; /* break out */ } #ifdef MACOS_TRADITIONAL if (!strchr(SvPVX(libdir), ':')) { char buf[256]; sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); } if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') sv_catpv(libdir, ":"); #endif /* Do the if() outside the #ifdef to avoid warnings about an unused parameter. */ 32770 if (canrelocate) { #ifdef PERL_RELOCATABLE_INC /* * Relocatable include entries are marked with a leading .../ * * The algorithm is * 0: Remove that leading ".../" * 1: Remove trailing executable name (anything after the last '/') * from the perl path to give a perl prefix * Then * While the @INC element starts "../" and the prefix ends with a real * directory (ie not . or ..) chop that real directory off the prefix * and the leading "../" from the @INC element. ie a logical "../" * cleanup * Finally concatenate the prefix and the remainder of the @INC element * The intent is that /usr/local/bin/perl and .../../lib/perl5 * generates /usr/local/lib/perl5 */ 22500 char *libpath = SvPVX(libdir); 22500 STRLEN libpath_len = SvCUR(libdir); 22500 if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { /* Game on! */ ###### SV *caret_X = get_sv("\030", 0); /* Going to use the SV just as a scratch buffer holding a C string: */ ###### SV *prefix_sv; ###### char *prefix; ###### char *lastslash; /* $^X is *the* source of taint if tainting is on, hence SvPOK() won't be true. */ ###### assert(caret_X); ###### assert(SvPOKp(caret_X)); ###### prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); /* Firstly take off the leading .../ If all else fail we'll do the paths relative to the current directory. */ ###### sv_chop(libdir, libpath + 4); /* Don't use SvPV as we're intentionally bypassing taining, mortal copies that the mg_get of tainting creates, and corruption that seems to come via the save stack. I guess that the save stack isn't correctly set up yet. */ ###### libpath = SvPVX(libdir); ###### libpath_len = SvCUR(libdir); /* This would work more efficiently with memrchr, but as it's only a GNU extension we'd need to probe for it and implement our own. Not hard, but maybe not worth it? */ ###### prefix = SvPVX(prefix_sv); ###### lastslash = strrchr(prefix, '/'); /* First time in with the *lastslash = '\0' we just wipe off the trailing /perl from (say) /usr/foo/bin/perl */ ###### if (lastslash) { ###### SV *tempsv; ###### while ((*lastslash = '\0'), /* Do that, come what may. */ (libpath_len >= 3 && memEQ(libpath, "../", 3) && (lastslash = strrchr(prefix, '/')))) { ###### if (lastslash[1] == '\0' || (lastslash[1] == '.' && (lastslash[2] == '/' /* ends "/." */ || (lastslash[2] == '/' && lastslash[3] == '/' /* or "/.." */ )))) { /* Prefix ends "/" or "/." or "/..", any of which are fishy, so don't do any more logical cleanup. */ ###### break; } /* Remove leading "../" from path */ ###### libpath += 3; ###### libpath_len -= 3; /* Next iteration round the loop removes the last directory name from prefix by writing a '\0' in the while clause. */ } /* prefix has been terminated with a '\0' to the correct length. libpath points somewhere into the libdir SV. We need to join the 2 with '/' and drop the result into libdir. */ ###### tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); ###### SvREFCNT_dec(libdir); /* And this is the new libdir. */ ###### libdir = tempsv; ###### if (PL_tainting && (PL_uid != PL_euid || PL_gid != PL_egid)) { /* Need to taint reloccated paths if running set ID */ ###### SvTAINTED_on(libdir); } } ###### SvREFCNT_dec(prefix_sv); } #endif } /* * BEFORE pushing libdir onto @INC we may first push version- and * archname-specific sub-directories. */ 32770 if (addsubdirs || addoldvers) { #ifdef PERL_INC_VERSION_LIST /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ 10310 const char *incverlist[] = { PERL_INC_VERSION_LIST }; 10310 const char **incver; #endif #ifdef VMS char *unix; STRLEN len; if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { len = strlen(unix); while (unix[len-1] == '/') len--; /* Cosmetic */ sv_usepvn(libdir,unix,len); } else PerlIO_printf(Perl_error_log, "Failed to unixify @INC element \"%s\"\n", SvPV(libdir,len)); #endif 10310 if (addsubdirs) { #ifdef MACOS_TRADITIONAL #define PERL_AV_SUFFIX_FMT "" #define PERL_ARCH_FMT "%s:" #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT #else #define PERL_AV_SUFFIX_FMT "/" #define PERL_ARCH_FMT "/%s" #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT #endif /* .../version/archname if -d .../version/archname */ 5810 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, libdir, (int)PERL_REVISION, (int)PERL_VERSION, (int)PERL_SUBVERSION, ARCHNAME); 5810 subdir = S_incpush_if_exists(aTHX_ subdir); /* .../version if -d .../version */ 5810 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir, (int)PERL_REVISION, (int)PERL_VERSION, (int)PERL_SUBVERSION); 5810 subdir = S_incpush_if_exists(aTHX_ subdir); /* .../archname if -d .../archname */ 5810 Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME); 5810 subdir = S_incpush_if_exists(aTHX_ subdir); } #ifdef PERL_INC_VERSION_LIST 10310 if (addoldvers) { 10310 for (incver = incverlist; *incver; incver++) { /* .../xxx if -d .../xxx */ ###### Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver); ###### subdir = S_incpush_if_exists(aTHX_ subdir); } } #endif } /* finally push this lib directory on the end of @INC */ 32770 av_push(GvAVn(PL_incgv), libdir); } 32517 if (subdir) { 10059 assert (SvREFCNT(subdir) == 1); 10059 SvREFCNT_dec(subdir); } } #ifdef USE_5005THREADS STATIC struct perl_thread * S_init_main_thread(pTHX) { #if !defined(PERL_IMPLICIT_CONTEXT) struct perl_thread *thr; #endif XPV *xpv; Newz(53, thr, 1, struct perl_thread); PL_curcop = &PL_compiling; thr->interp = PERL_GET_INTERP; thr->cvcache = newHV(); thr->threadsv = newAV(); /* thr->threadsvp is set when find_threadsv is called */ thr->specific = newAV(); 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 */ SvPV_set(PL_thrsvr, (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-"; PL_dumpindent = 4; MUTEX_LOCK(&PL_threads_mutex); PL_nthreads++; thr->tid = 0; thr->next = thr; thr->prev = thr; thr->thr_done = 0; MUTEX_UNLOCK(&PL_threads_mutex); #ifdef HAVE_THREAD_INTERN Perl_init_thread_intern(thr); #endif #ifdef SET_THREAD_SELF SET_THREAD_SELF(thr); #else thr->self = pthread_self(); #endif /* SET_THREAD_SELF */ PERL_SET_THX(thr); /* * These must come after the thread self setting * because sv_setpvn does SvTAINT and the taint * fields thread selfness being set. */ 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 = newSVpvn("", 0); (void) find_threadsv("@"); /* Ensure $@ is initialised early */ PL_maxscream = -1; PL_peepp = MEMBER_TO_FPTR(Perl_peep); PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); PL_regindent = 0; PL_reginterp_cnt = 0; return thr; } #endif /* USE_5005THREADS */ void Perl_call_list(pTHX_ I32 oldscope, AV *paramList) 78708 { dVAR; 78708 SV *atsv; 78708 const line_t oldline = CopLINE(PL_curcop); 157508 CV *cv; 157508 STRLEN len; 157508 int ret; 157508 dJMPENV; 157508 while (av_len(paramList) >= 0) { 78992 cv = (CV*)av_shift(paramList); 78992 if (PL_savebegin) { 1062 if (paramList == PL_beginav) { /* save PL_beginav for compiler */ 977 if (! PL_beginav_save) 79 PL_beginav_save = newAV(); 977 av_push(PL_beginav_save, (SV*)cv); } 85 else if (paramList == PL_checkav) { /* save PL_checkav for compiler */ 85 if (! PL_checkav_save) 79 PL_checkav_save = newAV(); 85 av_push(PL_checkav_save, (SV*)cv); } } else { 77930 SAVEFREESV(cv); } 78992 JMPENV_PUSH(ret); 79049 switch (ret) { case 0: 78992 call_list_body(cv); 78937 atsv = ERRSV; 78937 (void)SvPV_const(atsv, len); 78937 if (len) { 137 PL_curcop = &PL_compiling; 137 CopLINE_set(PL_curcop, oldline); 137 if (paramList == PL_beginav) 136 sv_catpv(atsv, "BEGIN failed--compilation aborted"); else 1 Perl_sv_catpvf(aTHX_ atsv, "%s failed--call queue aborted", paramList == PL_checkav ? "CHECK" : paramList == PL_initav ? "INIT" : "END"); 273 while (PL_scopestack_ix > oldscope) 136 LEAVE; 137 JMPENV_POP; 137 Perl_croak(aTHX_ "%"SVf"", atsv); } ###### break; case 1: ###### STATUS_ALL_FAILURE; /* FALL THROUGH */ case 2: /* my_exit() was called */ 161 while (PL_scopestack_ix > oldscope) 104 LEAVE; 57 FREETMPS; 57 PL_curstash = PL_defstash; 57 PL_curcop = &PL_compiling; 57 CopLINE_set(PL_curcop, oldline); 57 JMPENV_POP; 57 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { ###### if (paramList == PL_beginav) ###### Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); else ###### Perl_croak(aTHX_ "%s failed--call queue aborted", paramList == PL_checkav ? "CHECK" : paramList == PL_initav ? "INIT" : "END"); } 57 my_exit_jump(); /* NOTREACHED */ case 3: ###### if (PL_restartop) { ###### PL_curcop = &PL_compiling; ###### CopLINE_set(PL_curcop, oldline); ###### JMPENV_JUMP(3); } ###### PerlIO_printf(Perl_error_log, "panic: restartop\n"); ###### FREETMPS; break; } 78800 JMPENV_POP; } } STATIC void * S_call_list_body(pTHX_ CV *cv) 78992 { 78992 PUSHMARK(PL_stack_sp); 78992 call_sv((SV*)cv, G_EVAL|G_DISCARD); 78937 return NULL; } void Perl_my_exit(pTHX_ U32 status) 4434 { DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", thr, (unsigned long) status)); 4434 switch (status) { case 0: 4417 STATUS_ALL_SUCCESS; 4417 break; case 1: 9 STATUS_ALL_FAILURE; 9 break; default: 8 STATUS_NATIVE_SET(status); 4434 break; } 4434 my_exit_jump(); } void Perl_my_failure_exit(pTHX) 173 { #ifdef VMS if (vaxc$errno & 1) { if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ STATUS_NATIVE_SET(44); } else { if (!vaxc$errno) /* unlikely */ STATUS_NATIVE_SET(44); else STATUS_NATIVE_SET(vaxc$errno); } #else 173 int exitstatus; 173 if (errno & 255) 51 STATUS_UNIX_SET(errno); else { 122 exitstatus = STATUS_UNIX >> 8; 122 if (exitstatus & 255) 3 STATUS_UNIX_SET(exitstatus); else 119 STATUS_UNIX_SET(255); } #endif 173 my_exit_jump(); } STATIC void S_my_exit_jump(pTHX) 4722 { dVAR; 4722 register PERL_CONTEXT *cx; 4722 I32 gimme; 4722 SV **newsp; 4722 if (PL_e_script) { 6 SvREFCNT_dec(PL_e_script); 6 PL_e_script = Nullsv; } 4722 POPSTACK_TO(PL_mainstack); 4722 if (cxstack_ix >= 0) { 433 if (cxstack_ix > 0) 241 dounwind(0); 433 POPBLOCK(cx,PL_curpm); 433 LEAVE; } 4722 JMPENV_JUMP(2); PERL_UNUSED_VAR(gimme); PERL_UNUSED_VAR(newsp); } static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) 4118 { 4118 const char * const p = SvPVX_const(PL_e_script); 4118 const char *nl = strchr(p, '\n'); 4118 PERL_UNUSED_ARG(idx); 4118 PERL_UNUSED_ARG(maxlen); 4118 nl = (nl) ? nl+1 : SvEND(PL_e_script); 4118 if (nl-p == 0) { 2032 filter_del(read_e_script); 2032 return 0; } 2086 sv_catpvn(buf_sv, p, nl-p); 2086 sv_chop(PL_e_script, nl); 2086 return 1; } /* * Local variables: * c-indentation-style: bsd * c-basic-offset: 4 * indent-tabs-mode: t * End: * * ex: set ts=8 sts=4 sw=4 noet: */