3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
18 /* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
28 #define PERL_IN_PP_SYS_C
32 /* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
34 * The API is from SysV.
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
41 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
49 # include <sys/wait.h>
53 # include <sys/resource.h>
62 # include <sys/select.h>
66 /* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
73 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
88 struct passwd *getpwent (void);
89 #elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (pTHX);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
202 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
203 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
204 * available in the 32bit environment, which could warrant Configure
205 * checks in the future.
208 #define LOCALTIME_EDGECASE_BROKEN
211 /* F_OK unused: if stat() cannot find it... */
213 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
214 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
215 # define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
218 #if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
219 # ifdef I_SYS_SECURITY
220 # include <sys/security.h>
224 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
227 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
231 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
233 # define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
242 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
244 const Uid_t ruid = getuid();
245 const Uid_t euid = geteuid();
246 const Gid_t rgid = getgid();
247 const Gid_t egid = getegid();
251 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
252 Perl_croak(aTHX_ "switching effective uid is not implemented");
255 if (setreuid(euid, ruid))
258 if (setresuid(euid, ruid, (Uid_t)-1))
261 Perl_croak(aTHX_ "entering effective uid failed");
264 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
265 Perl_croak(aTHX_ "switching effective gid is not implemented");
268 if (setregid(egid, rgid))
271 if (setresgid(egid, rgid, (Gid_t)-1))
274 Perl_croak(aTHX_ "entering effective gid failed");
277 res = access(path, mode);
280 if (setreuid(ruid, euid))
283 if (setresuid(ruid, euid, (Uid_t)-1))
286 Perl_croak(aTHX_ "leaving effective uid failed");
289 if (setregid(rgid, egid))
292 if (setresgid(rgid, egid, (Gid_t)-1))
295 Perl_croak(aTHX_ "leaving effective gid failed");
300 # define PERL_EFF_ACCESS(p,f) (emulate_eaccess((p), (f)))
303 #if !defined(PERL_EFF_ACCESS)
304 /* With it or without it: anyway you get a warning: either that
305 it is unused, or it is declared static and never defined.
308 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
310 PERL_UNUSED_ARG(path);
311 PERL_UNUSED_ARG(mode);
312 Perl_croak(aTHX_ "switching effective uid is not implemented");
322 const char * const tmps = POPpconstx;
323 const I32 gimme = GIMME_V;
324 const char *mode = "r";
327 if (PL_op->op_private & OPpOPEN_IN_RAW)
329 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
331 fp = PerlProc_popen(tmps, mode);
333 const char * const type = PL_curcop->cop_io ? SvPV_nolen_const(PL_curcop->cop_io) : NULL;
335 PerlIO_apply_layers(aTHX_ fp,mode,type);
337 if (gimme == G_VOID) {
339 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
342 else if (gimme == G_SCALAR) {
345 PL_rs = &PL_sv_undef;
346 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
347 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
355 SV * const sv = newSV(79);
356 if (sv_gets(sv, fp, 0) == NULL) {
360 XPUSHs(sv_2mortal(sv));
361 if (SvLEN(sv) - SvCUR(sv) > 20) {
362 SvPV_shrink_to_cur(sv);
367 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
368 TAINT; /* "I believe that this is not gratuitous!" */
371 STATUS_NATIVE_CHILD_SET(-1);
372 if (gimme == G_SCALAR)
383 tryAMAGICunTARGET(iter, -1);
385 /* Note that we only ever get here if File::Glob fails to load
386 * without at the same time croaking, for some reason, or if
387 * perl was built with PERL_EXTERNAL_GLOB */
394 * The external globbing program may use things we can't control,
395 * so for security reasons we must assume the worst.
398 taint_proper(PL_no_security, "glob");
402 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
403 PL_last_in_gv = (GV*)*PL_stack_sp--;
405 SAVESPTR(PL_rs); /* This is not permanent, either. */
406 PL_rs = sv_2mortal(newSVpvs("\000"));
409 *SvPVX(PL_rs) = '\n';
413 result = do_readline();
421 PL_last_in_gv = cGVOP_gv;
422 return do_readline();
433 do_join(TARG, &PL_sv_no, MARK, SP);
437 else if (SP == MARK) {
444 tmps = SvPV_const(tmpsv, len);
445 if ((!tmps || !len) && PL_errgv) {
446 SV * const error = ERRSV;
447 SvUPGRADE(error, SVt_PV);
448 if (SvPOK(error) && SvCUR(error))
449 sv_catpvs(error, "\t...caught");
451 tmps = SvPV_const(tmpsv, len);
454 tmpsv = sv_2mortal(newSVpvs("Warning: something's wrong"));
456 Perl_warn(aTHX_ "%"SVf, tmpsv);
468 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
470 if (SP - MARK != 1) {
472 do_join(TARG, &PL_sv_no, MARK, SP);
474 tmps = SvPV_const(tmpsv, len);
480 tmps = SvROK(tmpsv) ? NULL : SvPV_const(tmpsv, len);
483 SV * const error = ERRSV;
484 SvUPGRADE(error, SVt_PV);
485 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
487 SvSetSV(error,tmpsv);
488 else if (sv_isobject(error)) {
489 HV * const stash = SvSTASH(SvRV(error));
490 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
492 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
493 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
500 call_sv((SV*)GvCV(gv),
501 G_SCALAR|G_EVAL|G_KEEPERR);
502 sv_setsv(error,*PL_stack_sp--);
508 if (SvPOK(error) && SvCUR(error))
509 sv_catpvs(error, "\t...propagated");
512 tmps = SvPV_const(tmpsv, len);
518 tmpsv = sv_2mortal(newSVpvs("Died"));
520 DIE(aTHX_ "%"SVf, tmpsv);
536 GV * const gv = (GV *)*++MARK;
539 DIE(aTHX_ PL_no_usym, "filehandle");
540 if ((io = GvIOp(gv)))
541 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
544 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
546 /* Method's args are same as ours ... */
547 /* ... except handle is replaced by the object */
548 *MARK-- = SvTIED_obj((SV*)io, mg);
552 call_method("OPEN", G_SCALAR);
566 tmps = SvPV_const(sv, len);
567 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
570 PUSHi( (I32)PL_forkprocess );
571 else if (PL_forkprocess == 0) /* we are a new child */
583 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
585 if (gv && (io = GvIO(gv))
586 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
589 XPUSHs(SvTIED_obj((SV*)io, mg));
592 call_method("CLOSE", G_SCALAR);
598 PUSHs(boolSV(do_close(gv, TRUE)));
611 GV * const wgv = (GV*)POPs;
612 GV * const rgv = (GV*)POPs;
617 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
618 DIE(aTHX_ PL_no_usym, "filehandle");
623 do_close(rgv, FALSE);
625 do_close(wgv, FALSE);
627 if (PerlProc_pipe(fd) < 0)
630 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
631 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
632 IoOFP(rstio) = IoIFP(rstio);
633 IoIFP(wstio) = IoOFP(wstio);
634 IoTYPE(rstio) = IoTYPE_RDONLY;
635 IoTYPE(wstio) = IoTYPE_WRONLY;
637 if (!IoIFP(rstio) || !IoOFP(wstio)) {
638 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
639 else PerlLIO_close(fd[0]);
640 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
641 else PerlLIO_close(fd[1]);
644 #if defined(HAS_FCNTL) && defined(F_SETFD)
645 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
646 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
653 DIE(aTHX_ PL_no_func, "pipe");
669 if (gv && (io = GvIO(gv))
670 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
673 XPUSHs(SvTIED_obj((SV*)io, mg));
676 call_method("FILENO", G_SCALAR);
682 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
683 /* Can't do this because people seem to do things like
684 defined(fileno($foo)) to check whether $foo is a valid fh.
685 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
686 report_evil_fh(gv, io, PL_op->op_type);
691 PUSHi(PerlIO_fileno(fp));
704 anum = PerlLIO_umask(0);
705 (void)PerlLIO_umask(anum);
708 anum = PerlLIO_umask(POPi);
709 TAINT_PROPER("umask");
712 /* Only DIE if trying to restrict permissions on "user" (self).
713 * Otherwise it's harmless and more useful to just return undef
714 * since 'group' and 'other' concepts probably don't exist here. */
715 if (MAXARG >= 1 && (POPi & 0700))
716 DIE(aTHX_ "umask not implemented");
717 XPUSHs(&PL_sv_undef);
739 if (gv && (io = GvIO(gv))
740 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
743 XPUSHs(SvTIED_obj((SV*)io, mg));
748 call_method("BINMODE", G_SCALAR);
755 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
756 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
757 report_evil_fh(gv, io, PL_op->op_type);
758 SETERRNO(EBADF,RMS_IFI);
763 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
764 (discp) ? SvPV_nolen_const(discp) : NULL)) {
765 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
766 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
767 mode_from_discipline(discp),
768 (discp) ? SvPV_nolen_const(discp) : NULL)) {
788 const I32 markoff = MARK - PL_stack_base;
789 const char *methname;
790 int how = PERL_MAGIC_tied;
794 switch(SvTYPE(varsv)) {
796 methname = "TIEHASH";
797 HvEITER_set((HV *)varsv, 0);
800 methname = "TIEARRAY";
803 #ifdef GV_UNIQUE_CHECK
804 if (GvUNIQUE((GV*)varsv)) {
805 Perl_croak(aTHX_ "Attempt to tie unique GV");
808 methname = "TIEHANDLE";
809 how = PERL_MAGIC_tiedscalar;
810 /* For tied filehandles, we apply tiedscalar magic to the IO
811 slot of the GP rather than the GV itself. AMS 20010812 */
813 GvIOp(varsv) = newIO();
814 varsv = (SV *)GvIOp(varsv);
817 methname = "TIESCALAR";
818 how = PERL_MAGIC_tiedscalar;
822 if (sv_isobject(*MARK)) {
824 PUSHSTACKi(PERLSI_MAGIC);
826 EXTEND(SP,(I32)items);
830 call_method(methname, G_SCALAR);
833 /* Not clear why we don't call call_method here too.
834 * perhaps to get different error message ?
836 stash = gv_stashsv(*MARK, FALSE);
837 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
838 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
842 PUSHSTACKi(PERLSI_MAGIC);
844 EXTEND(SP,(I32)items);
848 call_sv((SV*)GvCV(gv), G_SCALAR);
854 if (sv_isobject(sv)) {
855 sv_unmagic(varsv, how);
856 /* Croak if a self-tie on an aggregate is attempted. */
857 if (varsv == SvRV(sv) &&
858 (SvTYPE(varsv) == SVt_PVAV ||
859 SvTYPE(varsv) == SVt_PVHV))
861 "Self-ties of arrays and hashes are not supported");
862 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
865 SP = PL_stack_base + markoff;
875 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
876 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
878 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
881 if ((mg = SvTIED_mg(sv, how))) {
882 SV * const obj = SvRV(SvTIED_obj(sv, mg));
884 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
886 if (gv && isGV(gv) && (cv = GvCV(gv))) {
888 XPUSHs(SvTIED_obj((SV*)gv, mg));
889 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
892 call_sv((SV *)cv, G_VOID);
896 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
897 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
898 "untie attempted while %"UVuf" inner references still exist",
899 (UV)SvREFCNT(obj) - 1 ) ;
903 sv_unmagic(sv, how) ;
913 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
914 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
916 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
919 if ((mg = SvTIED_mg(sv, how))) {
920 SV *osv = SvTIED_obj(sv, mg);
921 if (osv == mg->mg_obj)
922 osv = sv_mortalcopy(osv);
936 HV * const hv = (HV*)POPs;
937 SV * const sv = sv_2mortal(newSVpvs("AnyDBM_File"));
938 stash = gv_stashsv(sv, FALSE);
939 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
941 require_pv("AnyDBM_File.pm");
943 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
944 DIE(aTHX_ "No dbm on this machine");
954 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
956 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
959 call_sv((SV*)GvCV(gv), G_SCALAR);
962 if (!sv_isobject(TOPs)) {
967 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
970 call_sv((SV*)GvCV(gv), G_SCALAR);
974 if (sv_isobject(TOPs)) {
975 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
976 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, NULL, 0);
993 struct timeval timebuf;
994 struct timeval *tbuf = &timebuf;
997 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1002 # if BYTEORDER & 0xf0000
1003 # define ORDERBYTE (0x88888888 - BYTEORDER)
1005 # define ORDERBYTE (0x4444 - BYTEORDER)
1011 for (i = 1; i <= 3; i++) {
1012 SV * const sv = SP[i];
1015 if (SvREADONLY(sv)) {
1017 sv_force_normal_flags(sv, 0);
1018 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
1019 DIE(aTHX_ PL_no_modify);
1022 if (ckWARN(WARN_MISC))
1023 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1024 SvPV_force_nolen(sv); /* force string conversion */
1031 /* little endians can use vecs directly */
1032 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1039 masksize = NFDBITS / NBBY;
1041 masksize = sizeof(long); /* documented int, everyone seems to use long */
1043 Zero(&fd_sets[0], 4, char*);
1046 # if SELECT_MIN_BITS == 1
1047 growsize = sizeof(fd_set);
1049 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1050 # undef SELECT_MIN_BITS
1051 # define SELECT_MIN_BITS __FD_SETSIZE
1053 /* If SELECT_MIN_BITS is greater than one we most probably will want
1054 * to align the sizes with SELECT_MIN_BITS/8 because for example
1055 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1056 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1057 * on (sets/tests/clears bits) is 32 bits. */
1058 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1066 timebuf.tv_sec = (long)value;
1067 value -= (NV)timebuf.tv_sec;
1068 timebuf.tv_usec = (long)(value * 1000000.0);
1073 for (i = 1; i <= 3; i++) {
1075 if (!SvOK(sv) || SvCUR(sv) == 0) {
1082 Sv_Grow(sv, growsize);
1086 while (++j <= growsize) {
1090 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1092 Newx(fd_sets[i], growsize, char);
1093 for (offset = 0; offset < growsize; offset += masksize) {
1094 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1095 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1098 fd_sets[i] = SvPVX(sv);
1102 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1103 /* Can't make just the (void*) conditional because that would be
1104 * cpp #if within cpp macro, and not all compilers like that. */
1105 nfound = PerlSock_select(
1107 (Select_fd_set_t) fd_sets[1],
1108 (Select_fd_set_t) fd_sets[2],
1109 (Select_fd_set_t) fd_sets[3],
1110 (void*) tbuf); /* Workaround for compiler bug. */
1112 nfound = PerlSock_select(
1114 (Select_fd_set_t) fd_sets[1],
1115 (Select_fd_set_t) fd_sets[2],
1116 (Select_fd_set_t) fd_sets[3],
1119 for (i = 1; i <= 3; i++) {
1122 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1124 for (offset = 0; offset < growsize; offset += masksize) {
1125 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1126 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1128 Safefree(fd_sets[i]);
1135 if (GIMME == G_ARRAY && tbuf) {
1136 value = (NV)(timebuf.tv_sec) +
1137 (NV)(timebuf.tv_usec) / 1000000.0;
1138 PUSHs(sv_2mortal(newSVnv(value)));
1142 DIE(aTHX_ "select not implemented");
1147 Perl_setdefout(pTHX_ GV *gv)
1150 SvREFCNT_inc_simple_void(gv);
1152 SvREFCNT_dec(PL_defoutgv);
1160 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1161 GV * egv = GvEGV(PL_defoutgv);
1167 XPUSHs(&PL_sv_undef);
1169 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1170 if (gvp && *gvp == egv) {
1171 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
1175 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1180 if (!GvIO(newdefout))
1181 gv_IOadd(newdefout);
1182 setdefout(newdefout);
1193 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1195 if (gv && (io = GvIO(gv))
1196 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1198 const I32 gimme = GIMME_V;
1200 XPUSHs(SvTIED_obj((SV*)io, mg));
1203 call_method("GETC", gimme);
1206 if (gimme == G_SCALAR)
1207 SvSetMagicSV_nosteal(TARG, TOPs);
1210 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1211 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1212 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1213 report_evil_fh(gv, io, PL_op->op_type);
1214 SETERRNO(EBADF,RMS_IFI);
1218 sv_setpvn(TARG, " ", 1);
1219 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1220 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1221 /* Find out how many bytes the char needs */
1222 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1225 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1226 SvCUR_set(TARG,1+len);
1235 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1238 register PERL_CONTEXT *cx;
1239 const I32 gimme = GIMME_V;
1244 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1246 cx->blk_sub.retop = retop;
1248 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1250 setdefout(gv); /* locally select filehandle so $% et al work */
1283 SV * const tmpsv = sv_newmortal();
1285 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1286 name = SvPV_nolen_const(tmpsv);
1288 DIE(aTHX_ "Undefined format \"%s\" called", name);
1290 DIE(aTHX_ "Not a format reference");
1293 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1295 IoFLAGS(io) &= ~IOf_DIDTOP;
1296 return doform(cv,gv,PL_op->op_next);
1302 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1303 register IO * const io = GvIOp(gv);
1304 PerlIO * const ofp = IoOFP(io);
1308 register PERL_CONTEXT *cx;
1310 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1311 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1314 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1315 PL_formtarget != PL_toptarget)
1319 if (!IoTOP_GV(io)) {
1322 if (!IoTOP_NAME(io)) {
1324 if (!IoFMT_NAME(io))
1325 IoFMT_NAME(io) = savepv(GvNAME(gv));
1326 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1327 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
1328 if ((topgv && GvFORM(topgv)) ||
1329 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
1330 IoTOP_NAME(io) = savesvpv(topname);
1332 IoTOP_NAME(io) = savepvs("top");
1334 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
1335 if (!topgv || !GvFORM(topgv)) {
1336 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1339 IoTOP_GV(io) = topgv;
1341 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1342 I32 lines = IoLINES_LEFT(io);
1343 const char *s = SvPVX_const(PL_formtarget);
1344 if (lines <= 0) /* Yow, header didn't even fit!!! */
1346 while (lines-- > 0) {
1347 s = strchr(s, '\n');
1353 const STRLEN save = SvCUR(PL_formtarget);
1354 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1355 do_print(PL_formtarget, ofp);
1356 SvCUR_set(PL_formtarget, save);
1357 sv_chop(PL_formtarget, s);
1358 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1361 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1362 do_print(PL_formfeed, ofp);
1363 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1365 PL_formtarget = PL_toptarget;
1366 IoFLAGS(io) |= IOf_DIDTOP;
1369 DIE(aTHX_ "bad top format reference");
1372 SV * const sv = sv_newmortal();
1374 gv_efullname4(sv, fgv, NULL, FALSE);
1375 name = SvPV_nolen_const(sv);
1377 DIE(aTHX_ "Undefined top format \"%s\" called", name);
1379 DIE(aTHX_ "Undefined top format called");
1381 if (cv && CvCLONE(cv))
1382 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1383 return doform(cv, gv, PL_op);
1387 POPBLOCK(cx,PL_curpm);
1393 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1395 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1396 else if (ckWARN(WARN_CLOSED))
1397 report_evil_fh(gv, io, PL_op->op_type);
1402 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1403 if (ckWARN(WARN_IO))
1404 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1406 if (!do_print(PL_formtarget, fp))
1409 FmLINES(PL_formtarget) = 0;
1410 SvCUR_set(PL_formtarget, 0);
1411 *SvEND(PL_formtarget) = '\0';
1412 if (IoFLAGS(io) & IOf_FLUSH)
1413 (void)PerlIO_flush(fp);
1418 PL_formtarget = PL_bodytarget;
1420 PERL_UNUSED_VAR(newsp);
1421 PERL_UNUSED_VAR(gimme);
1422 return cx->blk_sub.retop;
1427 dVAR; dSP; dMARK; dORIGMARK;
1433 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
1435 if (gv && (io = GvIO(gv))
1436 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1438 if (MARK == ORIGMARK) {
1441 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1445 *MARK = SvTIED_obj((SV*)io, mg);
1448 call_method("PRINTF", G_SCALAR);
1451 MARK = ORIGMARK + 1;
1458 if (!(io = GvIO(gv))) {
1459 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1460 report_evil_fh(gv, io, PL_op->op_type);
1461 SETERRNO(EBADF,RMS_IFI);
1464 else if (!(fp = IoOFP(io))) {
1465 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1467 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1468 else if (ckWARN(WARN_CLOSED))
1469 report_evil_fh(gv, io, PL_op->op_type);
1471 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1475 do_sprintf(sv, SP - MARK, MARK + 1);
1476 if (!do_print(sv, fp))
1479 if (IoFLAGS(io) & IOf_FLUSH)
1480 if (PerlIO_flush(fp) == EOF)
1491 PUSHs(&PL_sv_undef);
1499 const int perm = (MAXARG > 3) ? POPi : 0666;
1500 const int mode = POPi;
1501 SV * const sv = POPs;
1502 GV * const gv = (GV *)POPs;
1505 /* Need TIEHANDLE method ? */
1506 const char * const tmps = SvPV_const(sv, len);
1507 /* FIXME? do_open should do const */
1508 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
1509 IoLINES(GvIOp(gv)) = 0;
1513 PUSHs(&PL_sv_undef);
1520 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1526 Sock_size_t bufsize;
1534 bool charstart = FALSE;
1535 STRLEN charskip = 0;
1538 GV * const gv = (GV*)*++MARK;
1539 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1540 && gv && (io = GvIO(gv)) )
1542 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1546 *MARK = SvTIED_obj((SV*)io, mg);
1548 call_method("READ", G_SCALAR);
1562 sv_setpvn(bufsv, "", 0);
1563 length = SvIVx(*++MARK);
1566 offset = SvIVx(*++MARK);
1570 if (!io || !IoIFP(io)) {
1571 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1572 report_evil_fh(gv, io, PL_op->op_type);
1573 SETERRNO(EBADF,RMS_IFI);
1576 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1577 buffer = SvPVutf8_force(bufsv, blen);
1578 /* UTF-8 may not have been set if they are all low bytes */
1583 buffer = SvPV_force(bufsv, blen);
1584 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1587 DIE(aTHX_ "Negative length");
1595 if (PL_op->op_type == OP_RECV) {
1596 char namebuf[MAXPATHLEN];
1597 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1598 bufsize = sizeof (struct sockaddr_in);
1600 bufsize = sizeof namebuf;
1602 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1606 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1607 /* 'offset' means 'flags' here */
1608 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1609 (struct sockaddr *)namebuf, &bufsize);
1613 /* Bogus return without padding */
1614 bufsize = sizeof (struct sockaddr_in);
1616 SvCUR_set(bufsv, count);
1617 *SvEND(bufsv) = '\0';
1618 (void)SvPOK_only(bufsv);
1622 /* This should not be marked tainted if the fp is marked clean */
1623 if (!(IoFLAGS(io) & IOf_UNTAINT))
1624 SvTAINTED_on(bufsv);
1626 sv_setpvn(TARG, namebuf, bufsize);
1631 if (PL_op->op_type == OP_RECV)
1632 DIE(aTHX_ PL_no_sock_func, "recv");
1634 if (DO_UTF8(bufsv)) {
1635 /* offset adjust in characters not bytes */
1636 blen = sv_len_utf8(bufsv);
1639 if (-offset > (int)blen)
1640 DIE(aTHX_ "Offset outside string");
1643 if (DO_UTF8(bufsv)) {
1644 /* convert offset-as-chars to offset-as-bytes */
1645 if (offset >= (int)blen)
1646 offset += SvCUR(bufsv) - blen;
1648 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1651 bufsize = SvCUR(bufsv);
1652 /* Allocating length + offset + 1 isn't perfect in the case of reading
1653 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1655 (should be 2 * length + offset + 1, or possibly something longer if
1656 PL_encoding is true) */
1657 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1658 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1659 Zero(buffer+bufsize, offset-bufsize, char);
1661 buffer = buffer + offset;
1663 read_target = bufsv;
1665 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1666 concatenate it to the current buffer. */
1668 /* Truncate the existing buffer to the start of where we will be
1670 SvCUR_set(bufsv, offset);
1672 read_target = sv_newmortal();
1673 SvUPGRADE(read_target, SVt_PV);
1674 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1677 if (PL_op->op_type == OP_SYSREAD) {
1678 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1679 if (IoTYPE(io) == IoTYPE_SOCKET) {
1680 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1686 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1691 #ifdef HAS_SOCKET__bad_code_maybe
1692 if (IoTYPE(io) == IoTYPE_SOCKET) {
1693 char namebuf[MAXPATHLEN];
1694 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1695 bufsize = sizeof (struct sockaddr_in);
1697 bufsize = sizeof namebuf;
1699 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1700 (struct sockaddr *)namebuf, &bufsize);
1705 count = PerlIO_read(IoIFP(io), buffer, length);
1706 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1707 if (count == 0 && PerlIO_error(IoIFP(io)))
1711 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1712 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1715 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1716 *SvEND(read_target) = '\0';
1717 (void)SvPOK_only(read_target);
1718 if (fp_utf8 && !IN_BYTES) {
1719 /* Look at utf8 we got back and count the characters */
1720 const char *bend = buffer + count;
1721 while (buffer < bend) {
1723 skip = UTF8SKIP(buffer);
1726 if (buffer - charskip + skip > bend) {
1727 /* partial character - try for rest of it */
1728 length = skip - (bend-buffer);
1729 offset = bend - SvPVX_const(bufsv);
1741 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1742 provided amount read (count) was what was requested (length)
1744 if (got < wanted && count == length) {
1745 length = wanted - got;
1746 offset = bend - SvPVX_const(bufsv);
1749 /* return value is character count */
1753 else if (buffer_utf8) {
1754 /* Let svcatsv upgrade the bytes we read in to utf8.
1755 The buffer is a mortal so will be freed soon. */
1756 sv_catsv_nomg(bufsv, read_target);
1759 /* This should not be marked tainted if the fp is marked clean */
1760 if (!(IoFLAGS(io) & IOf_UNTAINT))
1761 SvTAINTED_on(bufsv);
1773 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1781 const int op_type = PL_op->op_type;
1783 GV *const gv = (GV*)*++MARK;
1784 if (PL_op->op_type == OP_SYSWRITE
1785 && gv && (io = GvIO(gv))
1786 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1790 if (MARK == SP - 1) {
1792 sv = sv_2mortal(newSViv(sv_len(*SP)));
1798 *(ORIGMARK+1) = SvTIED_obj((SV*)io, mg);
1800 call_method("WRITE", G_SCALAR);
1813 if (op_type == OP_SYSWRITE) {
1815 length = (Size_t) sv_len(bufsv);
1817 #if Size_t_size > IVSIZE
1818 length = (Size_t)SvNVx(*++MARK);
1820 length = (Size_t)SvIVx(*++MARK);
1822 if ((SSize_t)length < 0)
1823 DIE(aTHX_ "Negative length");
1828 if (!io || !IoIFP(io)) {
1830 if (ckWARN(WARN_CLOSED))
1831 report_evil_fh(gv, io, PL_op->op_type);
1832 SETERRNO(EBADF,RMS_IFI);
1836 if (PerlIO_isutf8(IoIFP(io))) {
1837 if (!SvUTF8(bufsv)) {
1838 bufsv = sv_2mortal(newSVsv(bufsv));
1839 buffer = sv_2pvutf8(bufsv, &blen);
1841 buffer = SvPV_const(bufsv, blen);
1844 if (DO_UTF8(bufsv)) {
1845 /* Not modifying source SV, so making a temporary copy. */
1846 bufsv = sv_2mortal(newSVsv(bufsv));
1847 sv_utf8_downgrade(bufsv, FALSE);
1849 buffer = SvPV_const(bufsv, blen);
1852 if (op_type == OP_SYSWRITE) {
1854 if (DO_UTF8(bufsv)) {
1855 /* length and offset are in chars */
1856 blen = sv_len_utf8(bufsv);
1859 offset = SvIVx(*++MARK);
1861 if (-offset > (IV)blen)
1862 DIE(aTHX_ "Offset outside string");
1864 } else if (offset >= (IV)blen && blen > 0)
1865 DIE(aTHX_ "Offset outside string");
1868 if (length > blen - offset)
1869 length = blen - offset;
1870 if (DO_UTF8(bufsv)) {
1871 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1872 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1875 buffer = buffer+offset;
1877 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1878 if (IoTYPE(io) == IoTYPE_SOCKET) {
1879 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1885 /* See the note at doio.c:do_print about filesize limits. --jhi */
1886 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1892 const int flags = SvIVx(*++MARK);
1895 char * const sockbuf = SvPVx(*++MARK, mlen);
1896 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1897 flags, (struct sockaddr *)sockbuf, mlen);
1901 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1906 DIE(aTHX_ PL_no_sock_func, "send");
1912 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1913 #if Size_t_size > IVSIZE
1931 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1933 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1935 if (io && !IoIFP(io)) {
1936 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1938 IoFLAGS(io) &= ~IOf_START;
1939 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
1940 sv_setpvn(GvSV(gv), "-", 1);
1941 SvSETMAGIC(GvSV(gv));
1943 else if (!nextargv(gv))
1948 gv = PL_last_in_gv; /* eof */
1951 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1954 IO * const io = GvIO(gv);
1956 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
1958 XPUSHs(SvTIED_obj((SV*)io, mg));
1961 call_method("EOF", G_SCALAR);
1968 PUSHs(boolSV(!gv || do_eof(gv)));
1980 PL_last_in_gv = (GV*)POPs;
1983 if (gv && (io = GvIO(gv))
1984 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1987 XPUSHs(SvTIED_obj((SV*)io, mg));
1990 call_method("TELL", G_SCALAR);
1996 #if LSEEKSIZE > IVSIZE
1997 PUSHn( do_tell(gv) );
1999 PUSHi( do_tell(gv) );
2008 const int whence = POPi;
2009 #if LSEEKSIZE > IVSIZE
2010 const Off_t offset = (Off_t)SvNVx(POPs);
2012 const Off_t offset = (Off_t)SvIVx(POPs);
2016 GV * const gv = PL_last_in_gv = (GV*)POPs;
2018 if (gv && (io = GvIO(gv))
2019 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2022 XPUSHs(SvTIED_obj((SV*)io, mg));
2023 #if LSEEKSIZE > IVSIZE
2024 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2026 XPUSHs(sv_2mortal(newSViv(offset)));
2028 XPUSHs(sv_2mortal(newSViv(whence)));
2031 call_method("SEEK", G_SCALAR);
2037 if (PL_op->op_type == OP_SEEK)
2038 PUSHs(boolSV(do_seek(gv, offset, whence)));
2040 const Off_t sought = do_sysseek(gv, offset, whence);
2042 PUSHs(&PL_sv_undef);
2044 SV* const sv = sought ?
2045 #if LSEEKSIZE > IVSIZE
2050 : newSVpvn(zero_but_true, ZBTLEN);
2051 PUSHs(sv_2mortal(sv));
2061 /* There seems to be no consensus on the length type of truncate()
2062 * and ftruncate(), both off_t and size_t have supporters. In
2063 * general one would think that when using large files, off_t is
2064 * at least as wide as size_t, so using an off_t should be okay. */
2065 /* XXX Configure probe for the length type of *truncate() needed XXX */
2068 #if Off_t_size > IVSIZE
2073 /* Checking for length < 0 is problematic as the type might or
2074 * might not be signed: if it is not, clever compilers will moan. */
2075 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2082 if (PL_op->op_flags & OPf_SPECIAL) {
2083 tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO);
2092 TAINT_PROPER("truncate");
2093 if (!(fp = IoIFP(io))) {
2099 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2101 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2108 SV * const sv = POPs;
2111 if (SvTYPE(sv) == SVt_PVGV) {
2112 tmpgv = (GV*)sv; /* *main::FRED for example */
2113 goto do_ftruncate_gv;
2115 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2116 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2117 goto do_ftruncate_gv;
2119 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2120 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2121 goto do_ftruncate_io;
2124 name = SvPV_nolen_const(sv);
2125 TAINT_PROPER("truncate");
2127 if (truncate(name, len) < 0)
2131 const int tmpfd = PerlLIO_open(name, O_RDWR);
2136 if (my_chsize(tmpfd, len) < 0)
2138 PerlLIO_close(tmpfd);
2147 SETERRNO(EBADF,RMS_IFI);
2155 SV * const argsv = POPs;
2156 const unsigned int func = POPu;
2157 const int optype = PL_op->op_type;
2158 GV * const gv = (GV*)POPs;
2159 IO * const io = gv ? GvIOn(gv) : NULL;
2163 if (!io || !argsv || !IoIFP(io)) {
2164 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2165 report_evil_fh(gv, io, PL_op->op_type);
2166 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2170 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2173 s = SvPV_force(argsv, len);
2174 need = IOCPARM_LEN(func);
2176 s = Sv_Grow(argsv, need + 1);
2177 SvCUR_set(argsv, need);
2180 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2183 retval = SvIV(argsv);
2184 s = INT2PTR(char*,retval); /* ouch */
2187 TAINT_PROPER(PL_op_desc[optype]);
2189 if (optype == OP_IOCTL)
2191 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2193 DIE(aTHX_ "ioctl is not implemented");
2197 DIE(aTHX_ "fcntl is not implemented");
2199 #if defined(OS2) && defined(__EMX__)
2200 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2202 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2206 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2208 if (s[SvCUR(argsv)] != 17)
2209 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2211 s[SvCUR(argsv)] = 0; /* put our null back */
2212 SvSETMAGIC(argsv); /* Assume it has changed */
2221 PUSHp(zero_but_true, ZBTLEN);
2234 const int argtype = POPi;
2235 GV * const gv = (MAXARG == 0) ? PL_last_in_gv : (GV*)POPs;
2237 if (gv && (io = GvIO(gv)))
2243 /* XXX Looks to me like io is always NULL at this point */
2245 (void)PerlIO_flush(fp);
2246 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2249 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2250 report_evil_fh(gv, io, PL_op->op_type);
2252 SETERRNO(EBADF,RMS_IFI);
2257 DIE(aTHX_ PL_no_func, "flock()");
2267 const int protocol = POPi;
2268 const int type = POPi;
2269 const int domain = POPi;
2270 GV * const gv = (GV*)POPs;
2271 register IO * const io = gv ? GvIOn(gv) : NULL;
2275 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2276 report_evil_fh(gv, io, PL_op->op_type);
2277 if (io && IoIFP(io))
2278 do_close(gv, FALSE);
2279 SETERRNO(EBADF,LIB_INVARG);
2284 do_close(gv, FALSE);
2286 TAINT_PROPER("socket");
2287 fd = PerlSock_socket(domain, type, protocol);
2290 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2291 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2292 IoTYPE(io) = IoTYPE_SOCKET;
2293 if (!IoIFP(io) || !IoOFP(io)) {
2294 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2295 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2296 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2299 #if defined(HAS_FCNTL) && defined(F_SETFD)
2300 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2304 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2309 DIE(aTHX_ PL_no_sock_func, "socket");
2315 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2317 const int protocol = POPi;
2318 const int type = POPi;
2319 const int domain = POPi;
2320 GV * const gv2 = (GV*)POPs;
2321 GV * const gv1 = (GV*)POPs;
2322 register IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2323 register IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
2326 if (!gv1 || !gv2 || !io1 || !io2) {
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2329 report_evil_fh(gv1, io1, PL_op->op_type);
2331 report_evil_fh(gv1, io2, PL_op->op_type);
2333 if (io1 && IoIFP(io1))
2334 do_close(gv1, FALSE);
2335 if (io2 && IoIFP(io2))
2336 do_close(gv2, FALSE);
2341 do_close(gv1, FALSE);
2343 do_close(gv2, FALSE);
2345 TAINT_PROPER("socketpair");
2346 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2348 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2349 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2350 IoTYPE(io1) = IoTYPE_SOCKET;
2351 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2352 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2353 IoTYPE(io2) = IoTYPE_SOCKET;
2354 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2355 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2356 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2357 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2358 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2359 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2360 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2363 #if defined(HAS_FCNTL) && defined(F_SETFD)
2364 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2365 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2370 DIE(aTHX_ PL_no_sock_func, "socketpair");
2378 SV * const addrsv = POPs;
2379 /* OK, so on what platform does bind modify addr? */
2381 GV * const gv = (GV*)POPs;
2382 register IO * const io = GvIOn(gv);
2386 if (!io || !IoIFP(io))
2389 addr = SvPV_const(addrsv, len);
2390 TAINT_PROPER("bind");
2391 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2392 (struct sockaddr *)addr, len) >= 0)
2402 if (ckWARN(WARN_CLOSED))
2403 report_evil_fh(gv, io, PL_op->op_type);
2404 SETERRNO(EBADF,SS_IVCHAN);
2407 DIE(aTHX_ PL_no_sock_func, "bind");
2415 SV * const addrsv = POPs;
2416 GV * const gv = (GV*)POPs;
2417 register IO * const io = GvIOn(gv);
2421 if (!io || !IoIFP(io))
2424 addr = SvPV_const(addrsv, len);
2425 TAINT_PROPER("connect");
2426 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2432 if (ckWARN(WARN_CLOSED))
2433 report_evil_fh(gv, io, PL_op->op_type);
2434 SETERRNO(EBADF,SS_IVCHAN);
2437 DIE(aTHX_ PL_no_sock_func, "connect");
2445 const int backlog = POPi;
2446 GV * const gv = (GV*)POPs;
2447 register IO * const io = gv ? GvIOn(gv) : NULL;
2449 if (!gv || !io || !IoIFP(io))
2452 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2458 if (ckWARN(WARN_CLOSED))
2459 report_evil_fh(gv, io, PL_op->op_type);
2460 SETERRNO(EBADF,SS_IVCHAN);
2463 DIE(aTHX_ PL_no_sock_func, "listen");
2473 char namebuf[MAXPATHLEN];
2474 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2475 Sock_size_t len = sizeof (struct sockaddr_in);
2477 Sock_size_t len = sizeof namebuf;
2479 GV * const ggv = (GV*)POPs;
2480 GV * const ngv = (GV*)POPs;
2489 if (!gstio || !IoIFP(gstio))
2493 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2497 do_close(ngv, FALSE);
2498 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2499 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2500 IoTYPE(nstio) = IoTYPE_SOCKET;
2501 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2502 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2503 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2504 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2507 #if defined(HAS_FCNTL) && defined(F_SETFD)
2508 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2512 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2513 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2515 #ifdef __SCO_VERSION__
2516 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2519 PUSHp(namebuf, len);
2523 if (ckWARN(WARN_CLOSED))
2524 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2525 SETERRNO(EBADF,SS_IVCHAN);
2531 DIE(aTHX_ PL_no_sock_func, "accept");
2539 const int how = POPi;
2540 GV * const gv = (GV*)POPs;
2541 register IO * const io = GvIOn(gv);
2543 if (!io || !IoIFP(io))
2546 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2550 if (ckWARN(WARN_CLOSED))
2551 report_evil_fh(gv, io, PL_op->op_type);
2552 SETERRNO(EBADF,SS_IVCHAN);
2555 DIE(aTHX_ PL_no_sock_func, "shutdown");
2563 const int optype = PL_op->op_type;
2564 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
2565 const unsigned int optname = (unsigned int) POPi;
2566 const unsigned int lvl = (unsigned int) POPi;
2567 GV * const gv = (GV*)POPs;
2568 register IO * const io = GvIOn(gv);
2572 if (!io || !IoIFP(io))
2575 fd = PerlIO_fileno(IoIFP(io));
2579 (void)SvPOK_only(sv);
2583 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2590 #if defined(__SYMBIAN32__)
2591 # define SETSOCKOPT_OPTION_VALUE_T void *
2593 # define SETSOCKOPT_OPTION_VALUE_T const char *
2595 /* XXX TODO: We need to have a proper type (a Configure probe,
2596 * etc.) for what the C headers think of the third argument of
2597 * setsockopt(), the option_value read-only buffer: is it
2598 * a "char *", or a "void *", const or not. Some compilers
2599 * don't take kindly to e.g. assuming that "char *" implicitly
2600 * promotes to a "void *", or to explicitly promoting/demoting
2601 * consts to non/vice versa. The "const void *" is the SUS
2602 * definition, but that does not fly everywhere for the above
2604 SETSOCKOPT_OPTION_VALUE_T buf;
2608 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2612 aint = (int)SvIV(sv);
2613 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2616 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2625 if (ckWARN(WARN_CLOSED))
2626 report_evil_fh(gv, io, optype);
2627 SETERRNO(EBADF,SS_IVCHAN);
2632 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2640 const int optype = PL_op->op_type;
2641 GV * const gv = (GV*)POPs;
2642 register IO * const io = GvIOn(gv);
2647 if (!io || !IoIFP(io))
2650 sv = sv_2mortal(newSV(257));
2651 (void)SvPOK_only(sv);
2655 fd = PerlIO_fileno(IoIFP(io));
2657 case OP_GETSOCKNAME:
2658 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2661 case OP_GETPEERNAME:
2662 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2664 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2666 static const char nowhere[] = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
2667 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2668 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2669 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2670 sizeof(u_short) + sizeof(struct in_addr))) {
2677 #ifdef BOGUS_GETNAME_RETURN
2678 /* Interactive Unix, getpeername() and getsockname()
2679 does not return valid namelen */
2680 if (len == BOGUS_GETNAME_RETURN)
2681 len = sizeof(struct sockaddr);
2689 if (ckWARN(WARN_CLOSED))
2690 report_evil_fh(gv, io, optype);
2691 SETERRNO(EBADF,SS_IVCHAN);
2696 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2710 if (PL_op->op_flags & OPf_REF) {
2712 if (PL_op->op_type == OP_LSTAT) {
2713 if (gv != PL_defgv) {
2714 do_fstat_warning_check:
2715 if (ckWARN(WARN_IO))
2716 Perl_warner(aTHX_ packWARN(WARN_IO),
2717 "lstat() on filehandle %s", GvENAME(gv));
2718 } else if (PL_laststype != OP_LSTAT)
2719 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2723 if (gv != PL_defgv) {
2724 PL_laststype = OP_STAT;
2726 sv_setpvn(PL_statname, "", 0);
2727 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2728 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2730 if (PL_laststatval < 0) {
2731 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2732 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2737 SV* const sv = POPs;
2738 if (SvTYPE(sv) == SVt_PVGV) {
2742 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2744 if (PL_op->op_type == OP_LSTAT)
2745 goto do_fstat_warning_check;
2748 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2750 PL_laststype = PL_op->op_type;
2751 if (PL_op->op_type == OP_LSTAT)
2752 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2754 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2755 if (PL_laststatval < 0) {
2756 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2757 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2763 if (gimme != G_ARRAY) {
2764 if (gimme != G_VOID)
2765 XPUSHs(boolSV(max));
2771 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2772 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2773 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2774 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2775 #if Uid_t_size > IVSIZE
2776 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2778 # if Uid_t_sign <= 0
2779 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2781 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2784 #if Gid_t_size > IVSIZE
2785 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2787 # if Gid_t_sign <= 0
2788 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2790 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2793 #ifdef USE_STAT_RDEV
2794 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2796 PUSHs(sv_2mortal(newSVpvs("")));
2798 #if Off_t_size > IVSIZE
2799 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2801 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2804 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2805 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2806 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2808 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2809 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2810 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2812 #ifdef USE_STAT_BLOCKS
2813 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2814 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2816 PUSHs(sv_2mortal(newSVpvs("")));
2817 PUSHs(sv_2mortal(newSVpvs("")));
2823 /* This macro is used by the stacked filetest operators :
2824 * if the previous filetest failed, short-circuit and pass its value.
2825 * Else, discard it from the stack and continue. --rgs
2827 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2828 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2829 else { (void)POPs; PUTBACK; } \
2836 /* Not const, because things tweak this below. Not bool, because there's
2837 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2838 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2839 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2840 /* Giving some sort of initial value silences compilers. */
2842 int access_mode = R_OK;
2844 int access_mode = 0;
2847 /* access_mode is never used, but leaving use_access in makes the
2848 conditional compiling below much clearer. */
2851 int stat_mode = S_IRUSR;
2853 bool effective = FALSE;
2856 STACKED_FTEST_CHECK;
2858 switch (PL_op->op_type) {
2860 #if !(defined(HAS_ACCESS) && defined(R_OK))
2866 #if defined(HAS_ACCESS) && defined(W_OK)
2871 stat_mode = S_IWUSR;
2875 #if defined(HAS_ACCESS) && defined(X_OK)
2880 stat_mode = S_IXUSR;
2884 #ifdef PERL_EFF_ACCESS
2887 stat_mode = S_IWUSR;
2891 #ifndef PERL_EFF_ACCESS
2899 #ifdef PERL_EFF_ACCESS
2904 stat_mode = S_IXUSR;
2910 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2911 const char *const name = POPpx;
2913 # ifdef PERL_EFF_ACCESS
2914 result = PERL_EFF_ACCESS(name, access_mode);
2916 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
2922 result = access(name, access_mode);
2924 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
2939 if (cando(stat_mode, effective, &PL_statcache))
2948 const int op_type = PL_op->op_type;
2950 STACKED_FTEST_CHECK;
2955 if (op_type == OP_FTIS)
2958 /* You can't dTARGET inside OP_FTIS, because you'll get
2959 "panic: pad_sv po" - the op is not flagged to have a target. */
2963 #if Off_t_size > IVSIZE
2964 PUSHn(PL_statcache.st_size);
2966 PUSHi(PL_statcache.st_size);
2970 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
2973 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
2976 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
2989 /* I believe that all these three are likely to be defined on most every
2990 system these days. */
2992 if(PL_op->op_type == OP_FTSUID)
2996 if(PL_op->op_type == OP_FTSGID)
3000 if(PL_op->op_type == OP_FTSVTX)
3004 STACKED_FTEST_CHECK;
3009 switch (PL_op->op_type) {
3011 if (PL_statcache.st_uid == PL_uid)
3015 if (PL_statcache.st_uid == PL_euid)
3019 if (PL_statcache.st_size == 0)
3023 if (S_ISSOCK(PL_statcache.st_mode))
3027 if (S_ISCHR(PL_statcache.st_mode))
3031 if (S_ISBLK(PL_statcache.st_mode))
3035 if (S_ISREG(PL_statcache.st_mode))
3039 if (S_ISDIR(PL_statcache.st_mode))
3043 if (S_ISFIFO(PL_statcache.st_mode))
3048 if (PL_statcache.st_mode & S_ISUID)
3054 if (PL_statcache.st_mode & S_ISGID)
3060 if (PL_statcache.st_mode & S_ISVTX)
3071 I32 result = my_lstat();
3075 if (S_ISLNK(PL_statcache.st_mode))
3088 STACKED_FTEST_CHECK;
3090 if (PL_op->op_flags & OPf_REF)
3092 else if (isGV(TOPs))
3094 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3095 gv = (GV*)SvRV(POPs);
3097 gv = gv_fetchsv(tmpsv = POPs, 0, SVt_PVIO);
3099 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3100 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3101 else if (tmpsv && SvOK(tmpsv)) {
3102 const char *tmps = SvPV_nolen_const(tmpsv);
3110 if (PerlLIO_isatty(fd))
3115 #if defined(atarist) /* this will work with atariST. Configure will
3116 make guesses for other systems. */
3117 # define FILE_base(f) ((f)->_base)
3118 # define FILE_ptr(f) ((f)->_ptr)
3119 # define FILE_cnt(f) ((f)->_cnt)
3120 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3131 register STDCHAR *s;
3137 STACKED_FTEST_CHECK;
3139 if (PL_op->op_flags & OPf_REF)
3141 else if (isGV(TOPs))
3143 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3144 gv = (GV*)SvRV(POPs);
3150 if (gv == PL_defgv) {
3152 io = GvIO(PL_statgv);
3155 goto really_filename;
3160 PL_laststatval = -1;
3161 sv_setpvn(PL_statname, "", 0);
3162 io = GvIO(PL_statgv);
3164 if (io && IoIFP(io)) {
3165 if (! PerlIO_has_base(IoIFP(io)))
3166 DIE(aTHX_ "-T and -B not implemented on filehandles");
3167 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3168 if (PL_laststatval < 0)
3170 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3171 if (PL_op->op_type == OP_FTTEXT)
3176 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3177 i = PerlIO_getc(IoIFP(io));
3179 (void)PerlIO_ungetc(IoIFP(io),i);
3181 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3183 len = PerlIO_get_bufsiz(IoIFP(io));
3184 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3185 /* sfio can have large buffers - limit to 512 */
3190 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3192 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3194 SETERRNO(EBADF,RMS_IFI);
3202 PL_laststype = OP_STAT;
3203 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3204 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3205 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3207 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3210 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3211 if (PL_laststatval < 0) {
3212 (void)PerlIO_close(fp);
3215 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
3216 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3217 (void)PerlIO_close(fp);
3219 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3220 RETPUSHNO; /* special case NFS directories */
3221 RETPUSHYES; /* null file is anything */
3226 /* now scan s to look for textiness */
3227 /* XXX ASCII dependent code */
3229 #if defined(DOSISH) || defined(USEMYBINMODE)
3230 /* ignore trailing ^Z on short files */
3231 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3235 for (i = 0; i < len; i++, s++) {
3236 if (!*s) { /* null never allowed in text */
3241 else if (!(isPRINT(*s) || isSPACE(*s)))
3244 else if (*s & 128) {
3246 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3249 /* utf8 characters don't count as odd */
3250 if (UTF8_IS_START(*s)) {
3251 int ulen = UTF8SKIP(s);
3252 if (ulen < len - i) {
3254 for (j = 1; j < ulen; j++) {
3255 if (!UTF8_IS_CONTINUATION(s[j]))
3258 --ulen; /* loop does extra increment */
3268 *s != '\n' && *s != '\r' && *s != '\b' &&
3269 *s != '\t' && *s != '\f' && *s != 27)
3274 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3285 const char *tmps = NULL;
3289 SV * const sv = POPs;
3290 if (PL_op->op_flags & OPf_SPECIAL) {
3291 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3293 else if (SvTYPE(sv) == SVt_PVGV) {
3296 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3300 tmps = SvPVx_nolen_const(sv);
3304 if( !gv && (!tmps || !*tmps) ) {
3305 HV * const table = GvHVn(PL_envgv);
3308 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3309 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
3311 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
3316 deprecate("chdir('') or chdir(undef) as chdir()");
3317 tmps = SvPV_nolen_const(*svp);
3321 TAINT_PROPER("chdir");
3326 TAINT_PROPER("chdir");
3329 IO* const io = GvIO(gv);
3332 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3334 else if (IoDIRP(io)) {
3336 PUSHi(fchdir(dirfd(IoDIRP(io))) >= 0);
3338 DIE(aTHX_ PL_no_func, "dirfd");
3342 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3343 report_evil_fh(gv, io, PL_op->op_type);
3344 SETERRNO(EBADF, RMS_IFI);
3349 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3350 report_evil_fh(gv, io, PL_op->op_type);
3351 SETERRNO(EBADF,RMS_IFI);
3355 DIE(aTHX_ PL_no_func, "fchdir");
3359 PUSHi( PerlDir_chdir(tmps) >= 0 );
3361 /* Clear the DEFAULT element of ENV so we'll get the new value
3363 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3370 dVAR; dSP; dMARK; dTARGET;
3371 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3382 char * const tmps = POPpx;
3383 TAINT_PROPER("chroot");
3384 PUSHi( chroot(tmps) >= 0 );
3387 DIE(aTHX_ PL_no_func, "chroot");
3395 const char * const tmps2 = POPpconstx;
3396 const char * const tmps = SvPV_nolen_const(TOPs);
3397 TAINT_PROPER("rename");
3399 anum = PerlLIO_rename(tmps, tmps2);
3401 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3402 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3405 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3406 (void)UNLINK(tmps2);
3407 if (!(anum = link(tmps, tmps2)))
3408 anum = UNLINK(tmps);
3416 #if defined(HAS_LINK) || defined(HAS_SYMLINK)
3420 const int op_type = PL_op->op_type;
3424 if (op_type == OP_LINK)
3425 DIE(aTHX_ PL_no_func, "link");
3427 # ifndef HAS_SYMLINK
3428 if (op_type == OP_SYMLINK)
3429 DIE(aTHX_ PL_no_func, "symlink");
3433 const char * const tmps2 = POPpconstx;
3434 const char * const tmps = SvPV_nolen_const(TOPs);
3435 TAINT_PROPER(PL_op_desc[op_type]);
3437 # if defined(HAS_LINK)
3438 # if defined(HAS_SYMLINK)
3439 /* Both present - need to choose which. */
3440 (op_type == OP_LINK) ?
3441 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3443 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3444 PerlLIO_link(tmps, tmps2);
3447 # if defined(HAS_SYMLINK)
3448 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3449 symlink(tmps, tmps2);
3454 SETi( result >= 0 );
3461 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
3472 char buf[MAXPATHLEN];
3475 #ifndef INCOMPLETE_TAINTS
3479 len = readlink(tmps, buf, sizeof(buf) - 1);
3487 RETSETUNDEF; /* just pretend it's a normal file */
3491 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3493 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3495 char * const save_filename = filename;
3501 Newx(cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3502 strcpy(cmdline, cmd);
3503 strcat(cmdline, " ");
3504 for (s = cmdline + strlen(cmdline); *filename; ) {
3509 myfp = PerlProc_popen(cmdline, "r");
3513 SV * const tmpsv = sv_newmortal();
3514 /* Need to save/restore 'PL_rs' ?? */
3515 s = sv_gets(tmpsv, myfp, 0);
3516 (void)PerlProc_pclose(myfp);
3520 #ifdef HAS_SYS_ERRLIST
3525 /* you don't see this */
3526 const char * const errmsg =
3527 #ifdef HAS_SYS_ERRLIST
3535 if (instr(s, errmsg)) {
3542 #define EACCES EPERM
3544 if (instr(s, "cannot make"))
3545 SETERRNO(EEXIST,RMS_FEX);
3546 else if (instr(s, "existing file"))
3547 SETERRNO(EEXIST,RMS_FEX);
3548 else if (instr(s, "ile exists"))
3549 SETERRNO(EEXIST,RMS_FEX);
3550 else if (instr(s, "non-exist"))
3551 SETERRNO(ENOENT,RMS_FNF);
3552 else if (instr(s, "does not exist"))
3553 SETERRNO(ENOENT,RMS_FNF);
3554 else if (instr(s, "not empty"))
3555 SETERRNO(EBUSY,SS_DEVOFFLINE);
3556 else if (instr(s, "cannot access"))
3557 SETERRNO(EACCES,RMS_PRV);
3559 SETERRNO(EPERM,RMS_PRV);
3562 else { /* some mkdirs return no failure indication */
3563 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3564 if (PL_op->op_type == OP_RMDIR)
3569 SETERRNO(EACCES,RMS_PRV); /* a guess */
3578 /* This macro removes trailing slashes from a directory name.
3579 * Different operating and file systems take differently to
3580 * trailing slashes. According to POSIX 1003.1 1996 Edition
3581 * any number of trailing slashes should be allowed.
3582 * Thusly we snip them away so that even non-conforming
3583 * systems are happy.
3584 * We should probably do this "filtering" for all
3585 * the functions that expect (potentially) directory names:
3586 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3587 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3589 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3590 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3593 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3594 (tmps) = savepvn((tmps), (len)); \
3604 const int mode = (MAXARG > 1) ? POPi : 0777;
3606 TRIMSLASHES(tmps,len,copy);
3608 TAINT_PROPER("mkdir");
3610 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3614 SETi( dooneliner("mkdir", tmps) );
3615 oldumask = PerlLIO_umask(0);
3616 PerlLIO_umask(oldumask);
3617 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3632 TRIMSLASHES(tmps,len,copy);
3633 TAINT_PROPER("rmdir");
3635 SETi( PerlDir_rmdir(tmps) >= 0 );
3637 SETi( dooneliner("rmdir", tmps) );
3644 /* Directory calls. */
3648 #if defined(Direntry_t) && defined(HAS_READDIR)
3650 const char * const dirname = POPpconstx;
3651 GV * const gv = (GV*)POPs;
3652 register IO * const io = GvIOn(gv);
3658 PerlDir_close(IoDIRP(io));
3659 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3665 SETERRNO(EBADF,RMS_DIR);
3668 DIE(aTHX_ PL_no_dir_func, "opendir");
3674 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3675 DIE(aTHX_ PL_no_dir_func, "readdir");
3677 #if !defined(I_DIRENT) && !defined(VMS)
3678 Direntry_t *readdir (DIR *);
3684 const I32 gimme = GIMME;
3685 GV * const gv = (GV *)POPs;
3686 register const Direntry_t *dp;
3687 register IO * const io = GvIOn(gv);
3689 if (!io || !IoDIRP(io)) {
3690 if(ckWARN(WARN_IO)) {
3691 Perl_warner(aTHX_ packWARN(WARN_IO),
3692 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3698 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3702 sv = newSVpvn(dp->d_name, dp->d_namlen);
3704 sv = newSVpv(dp->d_name, 0);
3706 #ifndef INCOMPLETE_TAINTS
3707 if (!(IoFLAGS(io) & IOf_UNTAINT))
3710 XPUSHs(sv_2mortal(sv));
3712 while (gimme == G_ARRAY);
3714 if (!dp && gimme != G_ARRAY)
3721 SETERRNO(EBADF,RMS_ISI);
3722 if (GIMME == G_ARRAY)
3731 #if defined(HAS_TELLDIR) || defined(telldir)
3733 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3734 /* XXX netbsd still seemed to.
3735 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3736 --JHI 1999-Feb-02 */
3737 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3738 long telldir (DIR *);
3740 GV * const gv = (GV*)POPs;
3741 register IO * const io = GvIOn(gv);
3743 if (!io || !IoDIRP(io)) {
3744 if(ckWARN(WARN_IO)) {
3745 Perl_warner(aTHX_ packWARN(WARN_IO),
3746 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
3751 PUSHi( PerlDir_tell(IoDIRP(io)) );
3755 SETERRNO(EBADF,RMS_ISI);
3758 DIE(aTHX_ PL_no_dir_func, "telldir");
3764 #if defined(HAS_SEEKDIR) || defined(seekdir)
3766 const long along = POPl;
3767 GV * const gv = (GV*)POPs;
3768 register IO * const io = GvIOn(gv);
3770 if (!io || !IoDIRP(io)) {
3771 if(ckWARN(WARN_IO)) {
3772 Perl_warner(aTHX_ packWARN(WARN_IO),
3773 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
3777 (void)PerlDir_seek(IoDIRP(io), along);
3782 SETERRNO(EBADF,RMS_ISI);
3785 DIE(aTHX_ PL_no_dir_func, "seekdir");
3791 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3793 GV * const gv = (GV*)POPs;
3794 register IO * const io = GvIOn(gv);
3796 if (!io || !IoDIRP(io)) {
3797 if(ckWARN(WARN_IO)) {
3798 Perl_warner(aTHX_ packWARN(WARN_IO),
3799 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
3803 (void)PerlDir_rewind(IoDIRP(io));
3807 SETERRNO(EBADF,RMS_ISI);
3810 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3816 #if defined(Direntry_t) && defined(HAS_READDIR)
3818 GV * const gv = (GV*)POPs;
3819 register IO * const io = GvIOn(gv);
3821 if (!io || !IoDIRP(io)) {
3822 if(ckWARN(WARN_IO)) {
3823 Perl_warner(aTHX_ packWARN(WARN_IO),
3824 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
3828 #ifdef VOID_CLOSEDIR
3829 PerlDir_close(IoDIRP(io));
3831 if (PerlDir_close(IoDIRP(io)) < 0) {
3832 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3841 SETERRNO(EBADF,RMS_IFI);
3844 DIE(aTHX_ PL_no_dir_func, "closedir");
3848 /* Process control. */
3857 PERL_FLUSHALL_FOR_CHILD;
3858 childpid = PerlProc_fork();
3862 GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV);
3864 SvREADONLY_off(GvSV(tmpgv));
3865 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3866 SvREADONLY_on(GvSV(tmpgv));
3868 #ifdef THREADS_HAVE_PIDS
3869 PL_ppid = (IV)getppid();
3871 #ifdef PERL_USES_PL_PIDSTATUS
3872 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3878 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3883 PERL_FLUSHALL_FOR_CHILD;
3884 childpid = PerlProc_fork();
3890 DIE(aTHX_ PL_no_func, "fork");
3897 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3902 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3903 childpid = wait4pid(-1, &argflags, 0);
3905 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
3910 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3911 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3912 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
3914 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
3919 DIE(aTHX_ PL_no_func, "wait");
3925 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3927 const int optype = POPi;
3928 const Pid_t pid = TOPi;
3932 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
3933 result = wait4pid(pid, &argflags, optype);
3935 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
3940 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3941 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
3942 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
3944 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
3949 DIE(aTHX_ PL_no_func, "waitpid");
3955 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
3961 while (++MARK <= SP) {
3962 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
3967 TAINT_PROPER("system");
3969 PERL_FLUSHALL_FOR_CHILD;
3970 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
3976 if (PerlProc_pipe(pp) >= 0)
3978 while ((childpid = PerlProc_fork()) == -1) {
3979 if (errno != EAGAIN) {
3984 PerlLIO_close(pp[0]);
3985 PerlLIO_close(pp[1]);
3992 Sigsave_t ihand,qhand; /* place to save signals during system() */
3996 PerlLIO_close(pp[1]);
3998 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
3999 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4002 result = wait4pid(childpid, &status, 0);
4003 } while (result == -1 && errno == EINTR);
4005 (void)rsignal_restore(SIGINT, &ihand);
4006 (void)rsignal_restore(SIGQUIT, &qhand);
4008 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4009 do_execfree(); /* free any memory child malloced on fork */
4015 while (n < sizeof(int)) {
4016 n1 = PerlLIO_read(pp[0],
4017 (void*)(((char*)&errkid)+n),
4023 PerlLIO_close(pp[0]);
4024 if (n) { /* Error */
4025 if (n != sizeof(int))
4026 DIE(aTHX_ "panic: kid popen errno read");
4027 errno = errkid; /* Propagate errno from kid */
4028 STATUS_NATIVE_CHILD_SET(-1);
4031 XPUSHi(STATUS_CURRENT);
4035 PerlLIO_close(pp[0]);
4036 #if defined(HAS_FCNTL) && defined(F_SETFD)
4037 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4040 if (PL_op->op_flags & OPf_STACKED) {
4041 SV * const really = *++MARK;
4042 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4044 else if (SP - MARK != 1)
4045 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4047 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4051 #else /* ! FORK or VMS or OS/2 */
4054 if (PL_op->op_flags & OPf_STACKED) {
4055 SV * const really = *++MARK;
4056 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4057 value = (I32)do_aspawn(really, MARK, SP);
4059 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4062 else if (SP - MARK != 1) {
4063 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4064 value = (I32)do_aspawn(NULL, MARK, SP);
4066 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4070 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4072 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4074 STATUS_NATIVE_CHILD_SET(value);
4077 XPUSHi(result ? value : STATUS_CURRENT);
4078 #endif /* !FORK or VMS */
4084 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4089 while (++MARK <= SP) {
4090 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4095 TAINT_PROPER("exec");
4097 PERL_FLUSHALL_FOR_CHILD;
4098 if (PL_op->op_flags & OPf_STACKED) {
4099 SV * const really = *++MARK;
4100 value = (I32)do_aexec(really, MARK, SP);
4102 else if (SP - MARK != 1)
4104 value = (I32)vms_do_aexec(NULL, MARK, SP);
4108 (void ) do_aspawn(NULL, MARK, SP);
4112 value = (I32)do_aexec(NULL, MARK, SP);
4117 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4120 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4123 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4137 # ifdef THREADS_HAVE_PIDS
4138 if (PL_ppid != 1 && getppid() == 1)
4139 /* maybe the parent process has died. Refresh ppid cache */
4143 XPUSHi( getppid() );
4147 DIE(aTHX_ PL_no_func, "getppid");
4156 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
4159 pgrp = (I32)BSD_GETPGRP(pid);
4161 if (pid != 0 && pid != PerlProc_getpid())
4162 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4168 DIE(aTHX_ PL_no_func, "getpgrp()");
4187 TAINT_PROPER("setpgrp");
4189 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4191 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4192 || (pid != 0 && pid != PerlProc_getpid()))
4194 DIE(aTHX_ "setpgrp can't take arguments");
4196 SETi( setpgrp() >= 0 );
4197 #endif /* USE_BSDPGRP */
4200 DIE(aTHX_ PL_no_func, "setpgrp()");
4206 #ifdef HAS_GETPRIORITY
4208 const int who = POPi;
4209 const int which = TOPi;
4210 SETi( getpriority(which, who) );
4213 DIE(aTHX_ PL_no_func, "getpriority()");
4219 #ifdef HAS_SETPRIORITY
4221 const int niceval = POPi;
4222 const int who = POPi;
4223 const int which = TOPi;
4224 TAINT_PROPER("setpriority");
4225 SETi( setpriority(which, who, niceval) >= 0 );
4228 DIE(aTHX_ PL_no_func, "setpriority()");
4238 XPUSHn( time(NULL) );
4240 XPUSHi( time(NULL) );
4252 (void)PerlProc_times(&PL_timesbuf);
4254 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4255 /* struct tms, though same data */
4259 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4260 if (GIMME == G_ARRAY) {
4261 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4262 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4263 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4269 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4271 if (GIMME == G_ARRAY) {
4272 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4273 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4274 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4278 DIE(aTHX_ "times not implemented");
4280 #endif /* HAS_TIMES */
4283 #ifdef LOCALTIME_EDGECASE_BROKEN
4284 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4289 /* No workarounds in the valid range */
4290 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4291 return (localtime (tp));
4293 /* This edge case is to workaround the undefined behaviour, where the
4294 * TIMEZONE makes the time go beyond the defined range.
4295 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4296 * If there is a negative offset in TZ, like MET-1METDST, some broken
4297 * implementations of localtime () (like AIX 5.2) barf with bogus
4299 * 0x7fffffff gmtime 2038-01-19 03:14:07
4300 * 0x7fffffff localtime 1901-12-13 21:45:51
4301 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4302 * 0x3c19137f gmtime 2001-12-13 20:45:51
4303 * 0x3c19137f localtime 2001-12-13 21:45:51
4304 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4305 * Given that legal timezones are typically between GMT-12 and GMT+12
4306 * we turn back the clock 23 hours before calling the localtime
4307 * function, and add those to the return value. This will never cause
4308 * day wrapping problems, since the edge case is Tue Jan *19*
4310 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4313 if (P->tm_hour >= 24) {
4315 P->tm_mday++; /* 18 -> 19 */
4316 P->tm_wday++; /* Mon -> Tue */
4317 P->tm_yday++; /* 18 -> 19 */
4320 } /* S_my_localtime */
4328 const struct tm *tmbuf;
4329 static const char * const dayname[] =
4330 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4331 static const char * const monname[] =
4332 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4333 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4339 when = (Time_t)SvNVx(POPs);
4341 when = (Time_t)SvIVx(POPs);
4344 if (PL_op->op_type == OP_LOCALTIME)
4345 #ifdef LOCALTIME_EDGECASE_BROKEN
4346 tmbuf = S_my_localtime(aTHX_ &when);
4348 tmbuf = localtime(&when);
4351 tmbuf = gmtime(&when);
4353 if (GIMME != G_ARRAY) {
4359 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4360 dayname[tmbuf->tm_wday],
4361 monname[tmbuf->tm_mon],
4366 tmbuf->tm_year + 1900);
4367 PUSHs(sv_2mortal(tsv));
4372 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4373 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4374 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4375 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4376 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4377 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4378 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4379 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4380 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4391 anum = alarm((unsigned int)anum);
4398 DIE(aTHX_ PL_no_func, "alarm");
4409 (void)time(&lasttime);
4414 PerlProc_sleep((unsigned int)duration);
4417 XPUSHi(when - lasttime);
4421 /* Shared memory. */
4422 /* Merged with some message passing. */
4426 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4427 dVAR; dSP; dMARK; dTARGET;
4428 const int op_type = PL_op->op_type;
4433 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4436 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4439 value = (I32)(do_semop(MARK, SP) >= 0);
4442 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4458 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4459 dVAR; dSP; dMARK; dTARGET;
4460 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4467 DIE(aTHX_ "System V IPC is not implemented on this machine");
4473 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4474 dVAR; dSP; dMARK; dTARGET;
4475 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4483 PUSHp(zero_but_true, ZBTLEN);
4491 /* I can't const this further without getting warnings about the types of
4492 various arrays passed in from structures. */
4494 S_space_join_names_mortal(pTHX_ char *const *array)
4498 if (array && *array) {
4499 target = sv_2mortal(newSVpvs(""));
4501 sv_catpv(target, *array);
4504 sv_catpvs(target, " ");
4507 target = sv_mortalcopy(&PL_sv_no);
4512 /* Get system info. */
4516 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4518 I32 which = PL_op->op_type;
4519 register char **elem;
4521 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4522 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4523 struct hostent *gethostbyname(Netdb_name_t);
4524 struct hostent *gethostent(void);
4526 struct hostent *hent;
4530 if (which == OP_GHBYNAME) {
4531 #ifdef HAS_GETHOSTBYNAME
4532 const char* const name = POPpbytex;
4533 hent = PerlSock_gethostbyname(name);
4535 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4538 else if (which == OP_GHBYADDR) {
4539 #ifdef HAS_GETHOSTBYADDR
4540 const int addrtype = POPi;
4541 SV * const addrsv = POPs;
4543 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4545 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4547 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4551 #ifdef HAS_GETHOSTENT
4552 hent = PerlSock_gethostent();
4554 DIE(aTHX_ PL_no_sock_func, "gethostent");
4557 #ifdef HOST_NOT_FOUND
4559 #ifdef USE_REENTRANT_API
4560 # ifdef USE_GETHOSTENT_ERRNO
4561 h_errno = PL_reentrant_buffer->_gethostent_errno;
4564 STATUS_UNIX_SET(h_errno);
4568 if (GIMME != G_ARRAY) {
4569 PUSHs(sv = sv_newmortal());
4571 if (which == OP_GHBYNAME) {
4573 sv_setpvn(sv, hent->h_addr, hent->h_length);
4576 sv_setpv(sv, (char*)hent->h_name);
4582 PUSHs(sv_2mortal(newSVpv((char*)hent->h_name, 0)));
4583 PUSHs(S_space_join_names_mortal(aTHX_ hent->h_aliases));
4584 PUSHs(sv_2mortal(newSViv((IV)hent->h_addrtype)));
4585 len = hent->h_length;
4586 PUSHs(sv_2mortal(newSViv((IV)len)));
4588 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4589 XPUSHs(sv_2mortal(newSVpvn(*elem, len)));
4593 PUSHs(newSVpvn(hent->h_addr, len));
4595 PUSHs(sv_mortalcopy(&PL_sv_no));
4600 DIE(aTHX_ PL_no_sock_func, "gethostent");
4606 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4608 I32 which = PL_op->op_type;
4610 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4611 struct netent *getnetbyaddr(Netdb_net_t, int);
4612 struct netent *getnetbyname(Netdb_name_t);
4613 struct netent *getnetent(void);
4615 struct netent *nent;
4617 if (which == OP_GNBYNAME){
4618 #ifdef HAS_GETNETBYNAME
4619 const char * const name = POPpbytex;
4620 nent = PerlSock_getnetbyname(name);
4622 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4625 else if (which == OP_GNBYADDR) {
4626 #ifdef HAS_GETNETBYADDR
4627 const int addrtype = POPi;
4628 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4629 nent = PerlSock_getnetbyaddr(addr, addrtype);
4631 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4635 #ifdef HAS_GETNETENT
4636 nent = PerlSock_getnetent();
4638 DIE(aTHX_ PL_no_sock_func, "getnetent");
4641 #ifdef HOST_NOT_FOUND
4643 #ifdef USE_REENTRANT_API
4644 # ifdef USE_GETNETENT_ERRNO
4645 h_errno = PL_reentrant_buffer->_getnetent_errno;
4648 STATUS_UNIX_SET(h_errno);
4653 if (GIMME != G_ARRAY) {
4654 PUSHs(sv = sv_newmortal());
4656 if (which == OP_GNBYNAME)
4657 sv_setiv(sv, (IV)nent->n_net);
4659 sv_setpv(sv, nent->n_name);
4665 PUSHs(sv_2mortal(newSVpv(nent->n_name, 0)));
4666 PUSHs(S_space_join_names_mortal(aTHX_ nent->n_aliases));
4667 PUSHs(sv_2mortal(newSViv((IV)nent->n_addrtype)));
4668 PUSHs(sv_2mortal(newSViv((IV)nent->n_net)));
4673 DIE(aTHX_ PL_no_sock_func, "getnetent");
4679 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4681 I32 which = PL_op->op_type;
4683 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4684 struct protoent *getprotobyname(Netdb_name_t);
4685 struct protoent *getprotobynumber(int);
4686 struct protoent *getprotoent(void);
4688 struct protoent *pent;
4690 if (which == OP_GPBYNAME) {
4691 #ifdef HAS_GETPROTOBYNAME
4692 const char* const name = POPpbytex;
4693 pent = PerlSock_getprotobyname(name);
4695 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4698 else if (which == OP_GPBYNUMBER) {
4699 #ifdef HAS_GETPROTOBYNUMBER
4700 const int number = POPi;
4701 pent = PerlSock_getprotobynumber(number);
4703 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4707 #ifdef HAS_GETPROTOENT
4708 pent = PerlSock_getprotoent();
4710 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4714 if (GIMME != G_ARRAY) {
4715 PUSHs(sv = sv_newmortal());
4717 if (which == OP_GPBYNAME)
4718 sv_setiv(sv, (IV)pent->p_proto);
4720 sv_setpv(sv, pent->p_name);
4726 PUSHs(sv_2mortal(newSVpv(pent->p_name, 0)));
4727 PUSHs(S_space_join_names_mortal(aTHX_ pent->p_aliases));
4728 PUSHs(sv_2mortal(newSViv((IV)pent->p_proto)));
4733 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4739 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4741 I32 which = PL_op->op_type;
4743 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4744 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4745 struct servent *getservbyport(int, Netdb_name_t);
4746 struct servent *getservent(void);
4748 struct servent *sent;
4750 if (which == OP_GSBYNAME) {
4751 #ifdef HAS_GETSERVBYNAME
4752 const char * const proto = POPpbytex;
4753 const char * const name = POPpbytex;
4754 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
4756 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4759 else if (which == OP_GSBYPORT) {
4760 #ifdef HAS_GETSERVBYPORT
4761 const char * const proto = POPpbytex;
4762 unsigned short port = (unsigned short)POPu;
4764 port = PerlSock_htons(port);
4766 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
4768 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4772 #ifdef HAS_GETSERVENT
4773 sent = PerlSock_getservent();
4775 DIE(aTHX_ PL_no_sock_func, "getservent");
4779 if (GIMME != G_ARRAY) {
4780 PUSHs(sv = sv_newmortal());
4782 if (which == OP_GSBYNAME) {
4784 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4786 sv_setiv(sv, (IV)(sent->s_port));
4790 sv_setpv(sv, sent->s_name);
4796 PUSHs(sv_2mortal(newSVpv(sent->s_name, 0)));
4797 PUSHs(S_space_join_names_mortal(aTHX_ sent->s_aliases));
4799 PUSHs(sv_2mortal(newSViv((IV)PerlSock_ntohs(sent->s_port))));
4801 PUSHs(sv_2mortal(newSViv((IV)(sent->s_port))));
4803 PUSHs(sv_2mortal(newSVpv(sent->s_proto, 0)));
4808 DIE(aTHX_ PL_no_sock_func, "getservent");
4814 #ifdef HAS_SETHOSTENT
4816 PerlSock_sethostent(TOPi);
4819 DIE(aTHX_ PL_no_sock_func, "sethostent");
4825 #ifdef HAS_SETNETENT
4827 PerlSock_setnetent(TOPi);
4830 DIE(aTHX_ PL_no_sock_func, "setnetent");
4836 #ifdef HAS_SETPROTOENT
4838 PerlSock_setprotoent(TOPi);
4841 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4847 #ifdef HAS_SETSERVENT
4849 PerlSock_setservent(TOPi);
4852 DIE(aTHX_ PL_no_sock_func, "setservent");
4858 #ifdef HAS_ENDHOSTENT
4860 PerlSock_endhostent();
4864 DIE(aTHX_ PL_no_sock_func, "endhostent");
4870 #ifdef HAS_ENDNETENT
4872 PerlSock_endnetent();
4876 DIE(aTHX_ PL_no_sock_func, "endnetent");
4882 #ifdef HAS_ENDPROTOENT
4884 PerlSock_endprotoent();
4888 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4894 #ifdef HAS_ENDSERVENT
4896 PerlSock_endservent();
4900 DIE(aTHX_ PL_no_sock_func, "endservent");
4908 I32 which = PL_op->op_type;
4910 struct passwd *pwent = NULL;
4912 * We currently support only the SysV getsp* shadow password interface.
4913 * The interface is declared in <shadow.h> and often one needs to link
4914 * with -lsecurity or some such.
4915 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
4918 * AIX getpwnam() is clever enough to return the encrypted password
4919 * only if the caller (euid?) is root.
4921 * There are at least three other shadow password APIs. Many platforms
4922 * seem to contain more than one interface for accessing the shadow
4923 * password databases, possibly for compatibility reasons.
4924 * The getsp*() is by far he simplest one, the other two interfaces
4925 * are much more complicated, but also very similar to each other.
4930 * struct pr_passwd *getprpw*();
4931 * The password is in
4932 * char getprpw*(...).ufld.fd_encrypt[]
4933 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
4938 * struct es_passwd *getespw*();
4939 * The password is in
4940 * char *(getespw*(...).ufld.fd_encrypt)
4941 * Mention HAS_GETESPWNAM here so that Configure probes for it.
4944 * struct userpw *getuserpw();
4945 * The password is in
4946 * char *(getuserpw(...)).spw_upw_passwd
4947 * (but the de facto standard getpwnam() should work okay)
4949 * Mention I_PROT here so that Configure probes for it.
4951 * In HP-UX for getprpw*() the manual page claims that one should include
4952 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
4953 * if one includes <shadow.h> as that includes <hpsecurity.h>,
4954 * and pp_sys.c already includes <shadow.h> if there is such.
4956 * Note that <sys/security.h> is already probed for, but currently
4957 * it is only included in special cases.
4959 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
4960 * be preferred interface, even though also the getprpw*() interface
4961 * is available) one needs to link with -lsecurity -ldb -laud -lm.
4962 * One also needs to call set_auth_parameters() in main() before
4963 * doing anything else, whether one is using getespw*() or getprpw*().
4965 * Note that accessing the shadow databases can be magnitudes
4966 * slower than accessing the standard databases.
4971 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
4972 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
4973 * the pw_comment is left uninitialized. */
4974 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
4980 const char* const name = POPpbytex;
4981 pwent = getpwnam(name);
4987 pwent = getpwuid(uid);
4991 # ifdef HAS_GETPWENT
4993 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
4994 if (pwent) pwent = getpwnam(pwent->pw_name);
4997 DIE(aTHX_ PL_no_func, "getpwent");
5003 if (GIMME != G_ARRAY) {
5004 PUSHs(sv = sv_newmortal());
5006 if (which == OP_GPWNAM)
5007 # if Uid_t_sign <= 0
5008 sv_setiv(sv, (IV)pwent->pw_uid);
5010 sv_setuv(sv, (UV)pwent->pw_uid);
5013 sv_setpv(sv, pwent->pw_name);
5019 PUSHs(sv_2mortal(newSVpv(pwent->pw_name, 0)));
5021 PUSHs(sv = sv_2mortal(newSViv(0)));
5022 /* If we have getspnam(), we try to dig up the shadow
5023 * password. If we are underprivileged, the shadow
5024 * interface will set the errno to EACCES or similar,
5025 * and return a null pointer. If this happens, we will
5026 * use the dummy password (usually "*" or "x") from the
5027 * standard password database.
5029 * In theory we could skip the shadow call completely
5030 * if euid != 0 but in practice we cannot know which
5031 * security measures are guarding the shadow databases
5032 * on a random platform.
5034 * Resist the urge to use additional shadow interfaces.
5035 * Divert the urge to writing an extension instead.
5038 /* Some AIX setups falsely(?) detect some getspnam(), which
5039 * has a different API than the Solaris/IRIX one. */
5040 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5042 const int saverrno = errno;
5043 const struct spwd * const spwent = getspnam(pwent->pw_name);
5044 /* Save and restore errno so that
5045 * underprivileged attempts seem
5046 * to have never made the unsccessful
5047 * attempt to retrieve the shadow password. */
5049 if (spwent && spwent->sp_pwdp)
5050 sv_setpv(sv, spwent->sp_pwdp);
5054 if (!SvPOK(sv)) /* Use the standard password, then. */
5055 sv_setpv(sv, pwent->pw_passwd);
5058 # ifndef INCOMPLETE_TAINTS
5059 /* passwd is tainted because user himself can diddle with it.
5060 * admittedly not much and in a very limited way, but nevertheless. */
5064 # if Uid_t_sign <= 0
5065 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_uid)));
5067 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_uid)));
5070 # if Uid_t_sign <= 0
5071 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_gid)));
5073 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_gid)));
5075 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5076 * because of the poor interface of the Perl getpw*(),
5077 * not because there's some standard/convention saying so.
5078 * A better interface would have been to return a hash,
5079 * but we are accursed by our history, alas. --jhi. */
5081 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_change)));
5084 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_quota)));
5087 PUSHs(sv_2mortal(newSVpv(pwent->pw_age, 0)));
5089 /* I think that you can never get this compiled, but just in case. */
5090 PUSHs(sv_mortalcopy(&PL_sv_no));
5095 /* pw_class and pw_comment are mutually exclusive--.
5096 * see the above note for pw_change, pw_quota, and pw_age. */
5098 PUSHs(sv_2mortal(newSVpv(pwent->pw_class, 0)));
5101 PUSHs(sv_2mortal(newSVpv(pwent->pw_comment, 0)));
5103 /* I think that you can never get this compiled, but just in case. */
5104 PUSHs(sv_mortalcopy(&PL_sv_no));
5109 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5111 PUSHs(sv_mortalcopy(&PL_sv_no));
5113 # ifndef INCOMPLETE_TAINTS
5114 /* pw_gecos is tainted because user himself can diddle with it. */
5118 PUSHs(sv_2mortal(newSVpv(pwent->pw_dir, 0)));
5120 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5121 # ifndef INCOMPLETE_TAINTS
5122 /* pw_shell is tainted because user himself can diddle with it. */
5127 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_expire)));
5132 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5138 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5143 DIE(aTHX_ PL_no_func, "setpwent");
5149 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5154 DIE(aTHX_ PL_no_func, "endpwent");
5162 const I32 which = PL_op->op_type;
5163 const struct group *grent;
5165 if (which == OP_GGRNAM) {
5166 const char* const name = POPpbytex;
5167 grent = (const struct group *)getgrnam(name);
5169 else if (which == OP_GGRGID) {
5170 const Gid_t gid = POPi;
5171 grent = (const struct group *)getgrgid(gid);
5175 grent = (struct group *)getgrent();
5177 DIE(aTHX_ PL_no_func, "getgrent");
5181 if (GIMME != G_ARRAY) {
5182 SV * const sv = sv_newmortal();
5186 if (which == OP_GGRNAM)
5187 sv_setiv(sv, (IV)grent->gr_gid);
5189 sv_setpv(sv, grent->gr_name);
5195 PUSHs(sv_2mortal(newSVpv(grent->gr_name, 0)));
5198 PUSHs(sv_2mortal(newSVpv(grent->gr_passwd, 0)));
5200 PUSHs(sv_mortalcopy(&PL_sv_no));
5203 PUSHs(sv_2mortal(newSViv((IV)grent->gr_gid)));
5205 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5206 /* In UNICOS/mk (_CRAYMPP) the multithreading
5207 * versions (getgrnam_r, getgrgid_r)
5208 * seem to return an illegal pointer
5209 * as the group members list, gr_mem.
5210 * getgrent() doesn't even have a _r version
5211 * but the gr_mem is poisonous anyway.
5212 * So yes, you cannot get the list of group
5213 * members if building multithreaded in UNICOS/mk. */
5214 PUSHs(S_space_join_names_mortal(aTHX_ grent->gr_mem));
5220 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5226 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5231 DIE(aTHX_ PL_no_func, "setgrent");
5237 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5242 DIE(aTHX_ PL_no_func, "endgrent");
5252 if (!(tmps = PerlProc_getlogin()))
5254 PUSHp(tmps, strlen(tmps));
5257 DIE(aTHX_ PL_no_func, "getlogin");
5261 /* Miscellaneous. */
5266 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
5267 register I32 items = SP - MARK;
5268 unsigned long a[20];
5273 while (++MARK <= SP) {
5274 if (SvTAINTED(*MARK)) {
5280 TAINT_PROPER("syscall");
5283 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5284 * or where sizeof(long) != sizeof(char*). But such machines will
5285 * not likely have syscall implemented either, so who cares?
5287 while (++MARK <= SP) {
5288 if (SvNIOK(*MARK) || !i)
5289 a[i++] = SvIV(*MARK);
5290 else if (*MARK == &PL_sv_undef)
5293 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5299 DIE(aTHX_ "Too many args to syscall");
5301 DIE(aTHX_ "Too few args to syscall");
5303 retval = syscall(a[0]);
5306 retval = syscall(a[0],a[1]);
5309 retval = syscall(a[0],a[1],a[2]);
5312 retval = syscall(a[0],a[1],a[2],a[3]);
5315 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5318 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5321 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5324 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5328 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5331 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5334 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5338 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5342 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5346 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5347 a[10],a[11],a[12],a[13]);
5349 #endif /* atarist */
5355 DIE(aTHX_ PL_no_func, "syscall");
5359 #ifdef FCNTL_EMULATE_FLOCK
5361 /* XXX Emulate flock() with fcntl().
5362 What's really needed is a good file locking module.
5366 fcntl_emulate_flock(int fd, int operation)
5370 switch (operation & ~LOCK_NB) {
5372 flock.l_type = F_RDLCK;
5375 flock.l_type = F_WRLCK;
5378 flock.l_type = F_UNLCK;
5384 flock.l_whence = SEEK_SET;
5385 flock.l_start = flock.l_len = (Off_t)0;
5387 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5390 #endif /* FCNTL_EMULATE_FLOCK */
5392 #ifdef LOCKF_EMULATE_FLOCK
5394 /* XXX Emulate flock() with lockf(). This is just to increase
5395 portability of scripts. The calls are not completely
5396 interchangeable. What's really needed is a good file
5400 /* The lockf() constants might have been defined in <unistd.h>.
5401 Unfortunately, <unistd.h> causes troubles on some mixed
5402 (BSD/POSIX) systems, such as SunOS 4.1.3.
5404 Further, the lockf() constants aren't POSIX, so they might not be
5405 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5406 just stick in the SVID values and be done with it. Sigh.
5410 # define F_ULOCK 0 /* Unlock a previously locked region */
5413 # define F_LOCK 1 /* Lock a region for exclusive use */
5416 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5419 # define F_TEST 3 /* Test a region for other processes locks */
5423 lockf_emulate_flock(int fd, int operation)
5426 const int save_errno = errno;
5429 /* flock locks entire file so for lockf we need to do the same */
5430 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5431 if (pos > 0) /* is seekable and needs to be repositioned */
5432 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5433 pos = -1; /* seek failed, so don't seek back afterwards */
5436 switch (operation) {
5438 /* LOCK_SH - get a shared lock */
5440 /* LOCK_EX - get an exclusive lock */
5442 i = lockf (fd, F_LOCK, 0);
5445 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5446 case LOCK_SH|LOCK_NB:
5447 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5448 case LOCK_EX|LOCK_NB:
5449 i = lockf (fd, F_TLOCK, 0);
5451 if ((errno == EAGAIN) || (errno == EACCES))
5452 errno = EWOULDBLOCK;
5455 /* LOCK_UN - unlock (non-blocking is a no-op) */
5457 case LOCK_UN|LOCK_NB:
5458 i = lockf (fd, F_ULOCK, 0);
5461 /* Default - can't decipher operation */
5468 if (pos > 0) /* need to restore position of the handle */
5469 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5474 #endif /* LOCKF_EMULATE_FLOCK */
5478 * c-indentation-style: bsd
5480 * indent-tabs-mode: t
5483 * ex: set ts=8 sts=4 sw=4 noet: