3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, 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 (void);
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_R_OK /* EFFective uid/gid ACCESS R_OK */
201 #undef PERL_EFF_ACCESS_W_OK
202 #undef PERL_EFF_ACCESS_X_OK
204 /* F_OK unused: if stat() cannot find it... */
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
208 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
214 # ifdef I_SYS_SECURITY
215 # include <sys/security.h>
219 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
224 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
230 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
232 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS_R_OK) && 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 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 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_R_OK(p) (emulate_eaccess((p), R_OK))
301 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
305 #if !defined(PERL_EFF_ACCESS_R_OK)
306 /* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
310 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
314 Perl_croak(aTHX_ "switching effective uid is not implemented");
324 const char * const tmps = POPpconstx;
325 const I32 gimme = GIMME_V;
326 const char *mode = "r";
329 if (PL_op->op_private & OPpOPEN_IN_RAW)
331 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
333 fp = PerlProc_popen((char*)tmps, (char *)mode);
335 const char *type = NULL;
336 if (PL_curcop->cop_io) {
337 type = SvPV_nolen_const(PL_curcop->cop_io);
340 PerlIO_apply_layers(aTHX_ fp,mode,type);
342 if (gimme == G_VOID) {
344 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
347 else if (gimme == G_SCALAR) {
350 PL_rs = &PL_sv_undef;
351 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
352 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
360 SV * const sv = NEWSV(56, 79);
361 if (sv_gets(sv, fp, 0) == Nullch) {
365 XPUSHs(sv_2mortal(sv));
366 if (SvLEN(sv) - SvCUR(sv) > 20) {
367 SvPV_shrink_to_cur(sv);
372 STATUS_NATIVE_SET(PerlProc_pclose(fp));
373 TAINT; /* "I believe that this is not gratuitous!" */
376 STATUS_NATIVE_SET(-1);
377 if (gimme == G_SCALAR)
388 tryAMAGICunTARGET(iter, -1);
390 /* Note that we only ever get here if File::Glob fails to load
391 * without at the same time croaking, for some reason, or if
392 * perl was built with PERL_EXTERNAL_GLOB */
399 * The external globbing program may use things we can't control,
400 * so for security reasons we must assume the worst.
403 taint_proper(PL_no_security, "glob");
407 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
408 PL_last_in_gv = (GV*)*PL_stack_sp--;
410 SAVESPTR(PL_rs); /* This is not permanent, either. */
411 PL_rs = sv_2mortal(newSVpvn("\000", 1));
414 *SvPVX(PL_rs) = '\n';
418 result = do_readline();
425 PL_last_in_gv = cGVOP_gv;
426 return do_readline();
435 if (SP - MARK != 1) {
437 do_join(TARG, &PL_sv_no, MARK, SP);
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_catpv(error, "\t...caught");
451 tmps = SvPV_const(tmpsv, len);
454 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
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) ? Nullch : SvPV_const(tmpsv, len);
484 SvUPGRADE(error, SVt_PV);
485 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
487 SvSetSV(error,tmpsv);
488 else if (sv_isobject(error)) {
489 HV *stash = SvSTASH(SvRV(error));
490 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
492 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
493 SV *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_catpv(error, "\t...propagated");
511 tmps = SvPV_const(tmpsv, len);
515 tmpsv = sv_2mortal(newSVpvn("Died", 4));
517 DIE(aTHX_ "%"SVf, tmpsv);
537 DIE(aTHX_ PL_no_usym, "filehandle");
538 if ((io = GvIOp(gv)))
539 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
541 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
542 /* Method's args are same as ours ... */
543 /* ... except handle is replaced by the object */
544 *MARK-- = SvTIED_obj((SV*)io, mg);
548 call_method("OPEN", G_SCALAR);
561 tmps = SvPV_const(sv, len);
562 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
565 PUSHi( (I32)PL_forkprocess );
566 else if (PL_forkprocess == 0) /* we are a new child */
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)));
618 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
619 DIE(aTHX_ PL_no_usym, "filehandle");
624 do_close(rgv, FALSE);
626 do_close(wgv, FALSE);
628 if (PerlProc_pipe(fd) < 0)
631 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
632 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
633 IoOFP(rstio) = IoIFP(rstio);
634 IoIFP(wstio) = IoOFP(wstio);
635 IoTYPE(rstio) = IoTYPE_RDONLY;
636 IoTYPE(wstio) = IoTYPE_WRONLY;
638 if (!IoIFP(rstio) || !IoOFP(wstio)) {
639 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
640 else PerlLIO_close(fd[0]);
641 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
642 else PerlLIO_close(fd[1]);
645 #if defined(HAS_FCNTL) && defined(F_SETFD)
646 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
647 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
654 DIE(aTHX_ PL_no_func, "pipe");
670 if (gv && (io = GvIO(gv))
671 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
674 XPUSHs(SvTIED_obj((SV*)io, mg));
677 call_method("FILENO", G_SCALAR);
683 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
684 /* Can't do this because people seem to do things like
685 defined(fileno($foo)) to check whether $foo is a valid fh.
686 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
687 report_evil_fh(gv, io, PL_op->op_type);
692 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) : Nullch)) {
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) : Nullch)) {
789 const I32 markoff = MARK - PL_stack_base;
790 const char *methname;
791 int how = PERL_MAGIC_tied;
795 switch(SvTYPE(varsv)) {
797 methname = "TIEHASH";
798 HvEITER_set((HV *)varsv, 0);
801 methname = "TIEARRAY";
804 #ifdef GV_UNIQUE_CHECK
805 if (GvUNIQUE((GV*)varsv)) {
806 Perl_croak(aTHX_ "Attempt to tie unique GV");
809 methname = "TIEHANDLE";
810 how = PERL_MAGIC_tiedscalar;
811 /* For tied filehandles, we apply tiedscalar magic to the IO
812 slot of the GP rather than the GV itself. AMS 20010812 */
814 GvIOp(varsv) = newIO();
815 varsv = (SV *)GvIOp(varsv);
818 methname = "TIESCALAR";
819 how = PERL_MAGIC_tiedscalar;
823 if (sv_isobject(*MARK)) {
825 PUSHSTACKi(PERLSI_MAGIC);
827 EXTEND(SP,(I32)items);
831 call_method(methname, G_SCALAR);
834 /* Not clear why we don't call call_method here too.
835 * perhaps to get different error message ?
837 stash = gv_stashsv(*MARK, FALSE);
838 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
839 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
843 PUSHSTACKi(PERLSI_MAGIC);
845 EXTEND(SP,(I32)items);
849 call_sv((SV*)GvCV(gv), G_SCALAR);
855 if (sv_isobject(sv)) {
856 sv_unmagic(varsv, how);
857 /* Croak if a self-tie on an aggregate is attempted. */
858 if (varsv == SvRV(sv) &&
859 (SvTYPE(varsv) == SVt_PVAV ||
860 SvTYPE(varsv) == SVt_PVHV))
862 "Self-ties of arrays and hashes are not supported");
863 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
866 SP = PL_stack_base + markoff;
876 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
877 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
879 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
882 if ((mg = SvTIED_mg(sv, how))) {
883 SV * const obj = SvRV(SvTIED_obj(sv, mg));
887 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
888 isGV(gv) && (cv = GvCV(gv))) {
890 XPUSHs(SvTIED_obj((SV*)gv, mg));
891 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
894 call_sv((SV *)cv, G_VOID);
898 else if (ckWARN(WARN_UNTIE)) {
899 if (mg && SvREFCNT(obj) > 1)
900 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
901 "untie attempted while %"UVuf" inner references still exist",
902 (UV)SvREFCNT(obj) - 1 ) ;
906 sv_unmagic(sv, how) ;
915 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
916 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
918 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
921 if ((mg = SvTIED_mg(sv, how))) {
922 SV *osv = SvTIED_obj(sv, mg);
923 if (osv == mg->mg_obj)
924 osv = sv_mortalcopy(osv);
939 HV * const hv = (HV*)POPs;
941 sv = sv_mortalcopy(&PL_sv_no);
942 sv_setpv(sv, "AnyDBM_File");
943 stash = gv_stashsv(sv, FALSE);
944 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
946 require_pv("AnyDBM_File.pm");
948 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
949 DIE(aTHX_ "No dbm on this machine");
959 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
961 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
964 call_sv((SV*)GvCV(gv), G_SCALAR);
967 if (!sv_isobject(TOPs)) {
972 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
975 call_sv((SV*)GvCV(gv), G_SCALAR);
979 if (sv_isobject(TOPs)) {
980 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
981 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1003 struct timeval timebuf;
1004 struct timeval *tbuf = &timebuf;
1007 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1012 # if BYTEORDER & 0xf0000
1013 # define ORDERBYTE (0x88888888 - BYTEORDER)
1015 # define ORDERBYTE (0x4444 - BYTEORDER)
1021 for (i = 1; i <= 3; i++) {
1023 if (SvOK(sv) && SvREADONLY(sv)) {
1025 sv_force_normal_flags(sv, 0);
1027 DIE(aTHX_ PL_no_modify);
1036 /* little endians can use vecs directly */
1037 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1044 masksize = NFDBITS / NBBY;
1046 masksize = sizeof(long); /* documented int, everyone seems to use long */
1048 Zero(&fd_sets[0], 4, char*);
1051 # if SELECT_MIN_BITS == 1
1052 growsize = sizeof(fd_set);
1054 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1055 # undef SELECT_MIN_BITS
1056 # define SELECT_MIN_BITS __FD_SETSIZE
1058 /* If SELECT_MIN_BITS is greater than one we most probably will want
1059 * to align the sizes with SELECT_MIN_BITS/8 because for example
1060 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1061 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1062 * on (sets/tests/clears bits) is 32 bits. */
1063 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1071 timebuf.tv_sec = (long)value;
1072 value -= (NV)timebuf.tv_sec;
1073 timebuf.tv_usec = (long)(value * 1000000.0);
1076 tbuf = Null(struct timeval*);
1078 for (i = 1; i <= 3; i++) {
1084 else if (!SvPOK(sv))
1085 SvPV_force_nolen(sv); /* force string conversion */
1088 Sv_Grow(sv, growsize);
1092 while (++j <= growsize) {
1096 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1098 New(403, fd_sets[i], growsize, char);
1099 for (offset = 0; offset < growsize; offset += masksize) {
1100 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1101 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1104 fd_sets[i] = SvPVX(sv);
1108 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1109 /* Can't make just the (void*) conditional because that would be
1110 * cpp #if within cpp macro, and not all compilers like that. */
1111 nfound = PerlSock_select(
1113 (Select_fd_set_t) fd_sets[1],
1114 (Select_fd_set_t) fd_sets[2],
1115 (Select_fd_set_t) fd_sets[3],
1116 (void*) tbuf); /* Workaround for compiler bug. */
1118 nfound = PerlSock_select(
1120 (Select_fd_set_t) fd_sets[1],
1121 (Select_fd_set_t) fd_sets[2],
1122 (Select_fd_set_t) fd_sets[3],
1125 for (i = 1; i <= 3; i++) {
1128 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1130 for (offset = 0; offset < growsize; offset += masksize) {
1131 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1132 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1134 Safefree(fd_sets[i]);
1141 PUSHs(&PL_sv_undef);
1144 if (GIMME == G_ARRAY && tbuf) {
1145 value = (NV)(timebuf.tv_sec) +
1146 (NV)(timebuf.tv_usec) / 1000000.0;
1147 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1148 sv_setnv(sv, value);
1152 DIE(aTHX_ "select not implemented");
1157 Perl_setdefout(pTHX_ GV *gv)
1160 (void)SvREFCNT_inc(gv);
1162 SvREFCNT_dec(PL_defoutgv);
1172 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1174 egv = GvEGV(PL_defoutgv);
1179 XPUSHs(&PL_sv_undef);
1181 GV ** const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1182 if (gvp && *gvp == egv) {
1183 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1187 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1192 if (!GvIO(newdefout))
1193 gv_IOadd(newdefout);
1194 setdefout(newdefout);
1205 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1207 if (gv && (io = GvIO(gv))
1208 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1210 const I32 gimme = GIMME_V;
1212 XPUSHs(SvTIED_obj((SV*)io, mg));
1215 call_method("GETC", gimme);
1218 if (gimme == G_SCALAR)
1219 SvSetMagicSV_nosteal(TARG, TOPs);
1222 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1223 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1224 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1225 report_evil_fh(gv, io, PL_op->op_type);
1226 SETERRNO(EBADF,RMS_IFI);
1230 sv_setpvn(TARG, " ", 1);
1231 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1232 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1233 /* Find out how many bytes the char needs */
1234 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1237 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1238 SvCUR_set(TARG,1+len);
1248 return pp_sysread();
1252 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1255 register PERL_CONTEXT *cx;
1256 const I32 gimme = GIMME_V;
1261 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1263 cx->blk_sub.retop = retop;
1264 PAD_SET_CUR(CvPADLIST(cv), 1);
1266 setdefout(gv); /* locally select filehandle so $% et al work */
1298 SV * const tmpsv = sv_newmortal();
1300 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1301 name = SvPV_nolen_const(tmpsv);
1303 DIE(aTHX_ "Undefined format \"%s\" called", name);
1305 DIE(aTHX_ "Not a format reference");
1308 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1310 IoFLAGS(io) &= ~IOf_DIDTOP;
1311 return doform(cv,gv,PL_op->op_next);
1317 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1318 register IO * const io = GvIOp(gv);
1319 PerlIO * const ofp = IoOFP(io);
1321 SV **newsp = Null(SV**);
1323 register PERL_CONTEXT *cx;
1324 PERL_UNUSED_VAR(newsp);
1325 PERL_UNUSED_VAR(gimme);
1327 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1328 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1331 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1332 PL_formtarget != PL_toptarget)
1336 if (!IoTOP_GV(io)) {
1339 if (!IoTOP_NAME(io)) {
1341 if (!IoFMT_NAME(io))
1342 IoFMT_NAME(io) = savepv(GvNAME(gv));
1343 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1344 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1345 if ((topgv && GvFORM(topgv)) ||
1346 !gv_fetchpv("top",FALSE,SVt_PVFM))
1347 IoTOP_NAME(io) = savesvpv(topname);
1349 IoTOP_NAME(io) = savepvn("top", 3);
1351 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1352 if (!topgv || !GvFORM(topgv)) {
1353 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1356 IoTOP_GV(io) = topgv;
1358 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1359 I32 lines = IoLINES_LEFT(io);
1360 const char *s = SvPVX_const(PL_formtarget);
1361 if (lines <= 0) /* Yow, header didn't even fit!!! */
1363 while (lines-- > 0) {
1364 s = strchr(s, '\n');
1370 const STRLEN save = SvCUR(PL_formtarget);
1371 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1372 do_print(PL_formtarget, ofp);
1373 SvCUR_set(PL_formtarget, save);
1374 sv_chop(PL_formtarget, s);
1375 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1378 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1379 do_print(PL_formfeed, ofp);
1380 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1382 PL_formtarget = PL_toptarget;
1383 IoFLAGS(io) |= IOf_DIDTOP;
1386 DIE(aTHX_ "bad top format reference");
1389 SV * const sv = sv_newmortal();
1391 gv_efullname4(sv, fgv, Nullch, FALSE);
1392 name = SvPV_nolen_const(sv);
1394 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1398 DIE(aTHX_ "Undefined top format called");
1401 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1402 return doform(cv,gv,PL_op);
1406 POPBLOCK(cx,PL_curpm);
1412 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1414 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1415 else if (ckWARN(WARN_CLOSED))
1416 report_evil_fh(gv, io, PL_op->op_type);
1421 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1422 if (ckWARN(WARN_IO))
1423 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1425 if (!do_print(PL_formtarget, fp))
1428 FmLINES(PL_formtarget) = 0;
1429 SvCUR_set(PL_formtarget, 0);
1430 *SvEND(PL_formtarget) = '\0';
1431 if (IoFLAGS(io) & IOf_FLUSH)
1432 (void)PerlIO_flush(fp);
1437 PL_formtarget = PL_bodytarget;
1439 return cx->blk_sub.retop;
1444 dVAR; dSP; dMARK; dORIGMARK;
1451 if (PL_op->op_flags & OPf_STACKED)
1456 if (gv && (io = GvIO(gv))
1457 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1459 if (MARK == ORIGMARK) {
1462 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1466 *MARK = SvTIED_obj((SV*)io, mg);
1469 call_method("PRINTF", G_SCALAR);
1472 MARK = ORIGMARK + 1;
1479 if (!(io = GvIO(gv))) {
1480 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1481 report_evil_fh(gv, io, PL_op->op_type);
1482 SETERRNO(EBADF,RMS_IFI);
1485 else if (!(fp = IoOFP(io))) {
1486 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1488 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1489 else if (ckWARN(WARN_CLOSED))
1490 report_evil_fh(gv, io, PL_op->op_type);
1492 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1496 do_sprintf(sv, SP - MARK, MARK + 1);
1497 if (!do_print(sv, fp))
1500 if (IoFLAGS(io) & IOf_FLUSH)
1501 if (PerlIO_flush(fp) == EOF)
1512 PUSHs(&PL_sv_undef);
1519 const int perm = (MAXARG > 3) ? POPi : 0666;
1520 const int mode = POPi;
1521 SV * const sv = POPs;
1522 GV * const gv = (GV *)POPs;
1525 /* Need TIEHANDLE method ? */
1526 const char * const tmps = SvPV_const(sv, len);
1527 /* FIXME? do_open should do const */
1528 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1529 IoLINES(GvIOp(gv)) = 0;
1533 PUSHs(&PL_sv_undef);
1540 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1546 Sock_size_t bufsize;
1554 bool charstart = FALSE;
1555 STRLEN charskip = 0;
1558 GV * const gv = (GV*)*++MARK;
1559 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1560 && gv && (io = GvIO(gv)) )
1562 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1566 *MARK = SvTIED_obj((SV*)io, mg);
1568 call_method("READ", G_SCALAR);
1582 sv_setpvn(bufsv, "", 0);
1583 length = SvIVx(*++MARK);
1586 offset = SvIVx(*++MARK);
1590 if (!io || !IoIFP(io)) {
1591 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1592 report_evil_fh(gv, io, PL_op->op_type);
1593 SETERRNO(EBADF,RMS_IFI);
1596 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1597 buffer = SvPVutf8_force(bufsv, blen);
1598 /* UTF-8 may not have been set if they are all low bytes */
1603 buffer = SvPV_force(bufsv, blen);
1604 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1607 DIE(aTHX_ "Negative length");
1615 if (PL_op->op_type == OP_RECV) {
1616 char namebuf[MAXPATHLEN];
1617 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1618 bufsize = sizeof (struct sockaddr_in);
1620 bufsize = sizeof namebuf;
1622 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1626 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1627 /* 'offset' means 'flags' here */
1628 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1629 (struct sockaddr *)namebuf, &bufsize);
1633 /* Bogus return without padding */
1634 bufsize = sizeof (struct sockaddr_in);
1636 SvCUR_set(bufsv, count);
1637 *SvEND(bufsv) = '\0';
1638 (void)SvPOK_only(bufsv);
1642 /* This should not be marked tainted if the fp is marked clean */
1643 if (!(IoFLAGS(io) & IOf_UNTAINT))
1644 SvTAINTED_on(bufsv);
1646 sv_setpvn(TARG, namebuf, bufsize);
1651 if (PL_op->op_type == OP_RECV)
1652 DIE(aTHX_ PL_no_sock_func, "recv");
1654 if (DO_UTF8(bufsv)) {
1655 /* offset adjust in characters not bytes */
1656 blen = sv_len_utf8(bufsv);
1659 if (-offset > (int)blen)
1660 DIE(aTHX_ "Offset outside string");
1663 if (DO_UTF8(bufsv)) {
1664 /* convert offset-as-chars to offset-as-bytes */
1665 if (offset >= (int)blen)
1666 offset += SvCUR(bufsv) - blen;
1668 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1671 bufsize = SvCUR(bufsv);
1672 /* Allocating length + offset + 1 isn't perfect in the case of reading
1673 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1675 (should be 2 * length + offset + 1, or possibly something longer if
1676 PL_encoding is true) */
1677 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1678 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1679 Zero(buffer+bufsize, offset-bufsize, char);
1681 buffer = buffer + offset;
1683 read_target = bufsv;
1685 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1686 concatenate it to the current buffer. */
1688 /* Truncate the existing buffer to the start of where we will be
1690 SvCUR_set(bufsv, offset);
1692 read_target = sv_newmortal();
1693 SvUPGRADE(read_target, SVt_PV);
1694 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1697 if (PL_op->op_type == OP_SYSREAD) {
1698 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1699 if (IoTYPE(io) == IoTYPE_SOCKET) {
1700 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1706 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1711 #ifdef HAS_SOCKET__bad_code_maybe
1712 if (IoTYPE(io) == IoTYPE_SOCKET) {
1713 char namebuf[MAXPATHLEN];
1714 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1715 bufsize = sizeof (struct sockaddr_in);
1717 bufsize = sizeof namebuf;
1719 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1720 (struct sockaddr *)namebuf, &bufsize);
1725 count = PerlIO_read(IoIFP(io), buffer, length);
1726 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1727 if (count == 0 && PerlIO_error(IoIFP(io)))
1731 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1732 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1735 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1736 *SvEND(read_target) = '\0';
1737 (void)SvPOK_only(read_target);
1738 if (fp_utf8 && !IN_BYTES) {
1739 /* Look at utf8 we got back and count the characters */
1740 const char *bend = buffer + count;
1741 while (buffer < bend) {
1743 skip = UTF8SKIP(buffer);
1746 if (buffer - charskip + skip > bend) {
1747 /* partial character - try for rest of it */
1748 length = skip - (bend-buffer);
1749 offset = bend - SvPVX_const(bufsv);
1761 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1762 provided amount read (count) was what was requested (length)
1764 if (got < wanted && count == length) {
1765 length = wanted - got;
1766 offset = bend - SvPVX_const(bufsv);
1769 /* return value is character count */
1773 else if (buffer_utf8) {
1774 /* Let svcatsv upgrade the bytes we read in to utf8.
1775 The buffer is a mortal so will be freed soon. */
1776 sv_catsv_nomg(bufsv, read_target);
1779 /* This should not be marked tainted if the fp is marked clean */
1780 if (!(IoFLAGS(io) & IOf_UNTAINT))
1781 SvTAINTED_on(bufsv);
1794 const int items = (SP - PL_stack_base) - TOPMARK;
1798 sv = sv_2mortal(newSViv(sv_len(*SP)));
1807 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1818 if (PL_op->op_type == OP_SYSWRITE
1819 && gv && (io = GvIO(gv))
1820 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1825 *MARK = SvTIED_obj((SV*)io, mg);
1827 call_method("WRITE", G_SCALAR);
1838 #if Size_t_size > IVSIZE
1839 length = (Size_t)SvNVx(*++MARK);
1841 length = (Size_t)SvIVx(*++MARK);
1843 if ((SSize_t)length < 0)
1844 DIE(aTHX_ "Negative length");
1847 if (!io || !IoIFP(io)) {
1849 if (ckWARN(WARN_CLOSED))
1850 report_evil_fh(gv, io, PL_op->op_type);
1851 SETERRNO(EBADF,RMS_IFI);
1855 if (PerlIO_isutf8(IoIFP(io))) {
1856 if (!SvUTF8(bufsv)) {
1857 bufsv = sv_2mortal(newSVsv(bufsv));
1858 buffer = sv_2pvutf8(bufsv, &blen);
1860 buffer = SvPV_const(bufsv, blen);
1863 if (DO_UTF8(bufsv)) {
1864 /* Not modifying source SV, so making a temporary copy. */
1865 bufsv = sv_2mortal(newSVsv(bufsv));
1866 sv_utf8_downgrade(bufsv, FALSE);
1868 buffer = SvPV_const(bufsv, blen);
1871 if (PL_op->op_type == OP_SYSWRITE) {
1873 if (DO_UTF8(bufsv)) {
1874 /* length and offset are in chars */
1875 blen = sv_len_utf8(bufsv);
1878 offset = SvIVx(*++MARK);
1880 if (-offset > (IV)blen)
1881 DIE(aTHX_ "Offset outside string");
1883 } else if (offset >= (IV)blen && blen > 0)
1884 DIE(aTHX_ "Offset outside string");
1887 if (length > blen - offset)
1888 length = blen - offset;
1889 if (DO_UTF8(bufsv)) {
1890 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1891 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1894 buffer = buffer+offset;
1896 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1897 if (IoTYPE(io) == IoTYPE_SOCKET) {
1898 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1904 /* See the note at doio.c:do_print about filesize limits. --jhi */
1905 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1910 else if (SP > MARK) {
1912 char * const sockbuf = SvPVx(*++MARK, mlen);
1913 /* length is really flags */
1914 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1915 length, (struct sockaddr *)sockbuf, mlen);
1918 /* length is really flags */
1919 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1922 DIE(aTHX_ PL_no_sock_func, "send");
1928 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1929 #if Size_t_size > IVSIZE
1943 return pp_sysread();
1954 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1956 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1958 if (io && !IoIFP(io)) {
1959 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1961 IoFLAGS(io) &= ~IOf_START;
1962 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1963 sv_setpvn(GvSV(gv), "-", 1);
1964 SvSETMAGIC(GvSV(gv));
1966 else if (!nextargv(gv))
1971 gv = PL_last_in_gv; /* eof */
1974 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1976 if (gv && (io = GvIO(gv))
1977 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1980 XPUSHs(SvTIED_obj((SV*)io, mg));
1983 call_method("EOF", G_SCALAR);
1989 PUSHs(boolSV(!gv || do_eof(gv)));
2003 gv = PL_last_in_gv = (GV*)POPs;
2005 if (gv && (io = GvIO(gv))
2006 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2009 XPUSHs(SvTIED_obj((SV*)io, mg));
2012 call_method("TELL", G_SCALAR);
2018 #if LSEEKSIZE > IVSIZE
2019 PUSHn( do_tell(gv) );
2021 PUSHi( do_tell(gv) );
2028 return pp_sysseek();
2036 const int whence = POPi;
2037 #if LSEEKSIZE > IVSIZE
2038 Off_t offset = (Off_t)SvNVx(POPs);
2040 Off_t offset = (Off_t)SvIVx(POPs);
2044 gv = PL_last_in_gv = (GV*)POPs;
2046 if (gv && (io = GvIO(gv))
2047 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2050 XPUSHs(SvTIED_obj((SV*)io, mg));
2051 #if LSEEKSIZE > IVSIZE
2052 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2054 XPUSHs(sv_2mortal(newSViv(offset)));
2056 XPUSHs(sv_2mortal(newSViv(whence)));
2059 call_method("SEEK", G_SCALAR);
2065 if (PL_op->op_type == OP_SEEK)
2066 PUSHs(boolSV(do_seek(gv, offset, whence)));
2068 Off_t sought = do_sysseek(gv, offset, whence);
2070 PUSHs(&PL_sv_undef);
2073 #if LSEEKSIZE > IVSIZE
2078 : newSVpvn(zero_but_true, ZBTLEN);
2079 PUSHs(sv_2mortal(sv));
2088 /* There seems to be no consensus on the length type of truncate()
2089 * and ftruncate(), both off_t and size_t have supporters. In
2090 * general one would think that when using large files, off_t is
2091 * at least as wide as size_t, so using an off_t should be okay. */
2092 /* XXX Configure probe for the length type of *truncate() needed XXX */
2095 #if Off_t_size > IVSIZE
2100 /* Checking for length < 0 is problematic as the type might or
2101 * might not be signed: if it is not, clever compilers will moan. */
2102 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2109 if (PL_op->op_flags & OPf_SPECIAL) {
2110 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2119 TAINT_PROPER("truncate");
2120 if (!(fp = IoIFP(io))) {
2126 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2128 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2138 if (SvTYPE(sv) == SVt_PVGV) {
2139 tmpgv = (GV*)sv; /* *main::FRED for example */
2140 goto do_ftruncate_gv;
2142 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2143 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2144 goto do_ftruncate_gv;
2146 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2147 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2148 goto do_ftruncate_io;
2151 name = SvPV_nolen_const(sv);
2152 TAINT_PROPER("truncate");
2154 if (truncate(name, len) < 0)
2160 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2163 if (my_chsize(tmpfd, len) < 0)
2165 PerlLIO_close(tmpfd);
2174 SETERRNO(EBADF,RMS_IFI);
2188 const unsigned int func = POPu;
2189 const int optype = PL_op->op_type;
2193 IO *io = gv ? GvIOn(gv) : 0;
2195 if (!io || !argsv || !IoIFP(io)) {
2196 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2197 report_evil_fh(gv, io, PL_op->op_type);
2198 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2202 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2205 s = SvPV_force(argsv, len);
2206 need = IOCPARM_LEN(func);
2208 s = Sv_Grow(argsv, need + 1);
2209 SvCUR_set(argsv, need);
2212 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2215 retval = SvIV(argsv);
2216 s = INT2PTR(char*,retval); /* ouch */
2219 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2221 if (optype == OP_IOCTL)
2223 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2225 DIE(aTHX_ "ioctl is not implemented");
2229 DIE(aTHX_ "fcntl is not implemented");
2231 #if defined(OS2) && defined(__EMX__)
2232 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2234 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2238 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2240 if (s[SvCUR(argsv)] != 17)
2241 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2243 s[SvCUR(argsv)] = 0; /* put our null back */
2244 SvSETMAGIC(argsv); /* Assume it has changed */
2253 PUSHp(zero_but_true, ZBTLEN);
2274 if (gv && (io = GvIO(gv)))
2281 (void)PerlIO_flush(fp);
2282 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2285 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2286 report_evil_fh(gv, io, PL_op->op_type);
2288 SETERRNO(EBADF,RMS_IFI);
2293 DIE(aTHX_ PL_no_func, "flock()");
2305 int protocol = POPi;
2311 io = gv ? GvIOn(gv) : NULL;
2314 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2315 report_evil_fh(gv, io, PL_op->op_type);
2317 do_close(gv, FALSE);
2318 SETERRNO(EBADF,LIB_INVARG);
2323 do_close(gv, FALSE);
2325 TAINT_PROPER("socket");
2326 fd = PerlSock_socket(domain, type, protocol);
2329 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2330 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2331 IoTYPE(io) = IoTYPE_SOCKET;
2332 if (!IoIFP(io) || !IoOFP(io)) {
2333 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2334 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2335 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2338 #if defined(HAS_FCNTL) && defined(F_SETFD)
2339 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2343 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2348 DIE(aTHX_ PL_no_sock_func, "socket");
2354 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2360 int protocol = POPi;
2367 io1 = gv1 ? GvIOn(gv1) : NULL;
2368 io2 = gv2 ? GvIOn(gv2) : NULL;
2369 if (!gv1 || !gv2 || !io1 || !io2) {
2370 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2372 report_evil_fh(gv1, io1, PL_op->op_type);
2374 report_evil_fh(gv1, io2, PL_op->op_type);
2377 do_close(gv1, FALSE);
2379 do_close(gv2, FALSE);
2384 do_close(gv1, FALSE);
2386 do_close(gv2, FALSE);
2388 TAINT_PROPER("socketpair");
2389 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2391 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2392 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2393 IoTYPE(io1) = IoTYPE_SOCKET;
2394 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2395 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2396 IoTYPE(io2) = IoTYPE_SOCKET;
2397 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2398 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2399 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2400 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2401 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2402 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2403 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2406 #if defined(HAS_FCNTL) && defined(F_SETFD)
2407 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2408 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2413 DIE(aTHX_ PL_no_sock_func, "socketpair");
2421 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2422 extern void GETPRIVMODE();
2423 extern void GETUSERMODE();
2426 /* OK, so on what platform does bind modify addr? */
2429 register IO *io = GvIOn(gv);
2433 int mpeprivmode = 0;
2436 if (!io || !IoIFP(io))
2439 addr = SvPV_const(addrsv, len);
2440 TAINT_PROPER("bind");
2441 #ifdef MPE /* Deal with MPE bind() peculiarities */
2442 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2443 /* The address *MUST* stupidly be zero. */
2444 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2445 /* PRIV mode is required to bind() to ports < 1024. */
2446 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2447 ((struct sockaddr_in *)addr)->sin_port > 0) {
2448 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2453 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2454 (struct sockaddr *)addr, len) >= 0)
2457 #ifdef MPE /* Switch back to USER mode */
2468 if (ckWARN(WARN_CLOSED))
2469 report_evil_fh(gv, io, PL_op->op_type);
2470 SETERRNO(EBADF,SS_IVCHAN);
2473 DIE(aTHX_ PL_no_sock_func, "bind");
2484 register IO *io = GvIOn(gv);
2487 if (!io || !IoIFP(io))
2490 addr = SvPV_const(addrsv, len);
2491 TAINT_PROPER("connect");
2492 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2498 if (ckWARN(WARN_CLOSED))
2499 report_evil_fh(gv, io, PL_op->op_type);
2500 SETERRNO(EBADF,SS_IVCHAN);
2503 DIE(aTHX_ PL_no_sock_func, "connect");
2513 register IO *io = gv ? GvIOn(gv) : NULL;
2515 if (!gv || !io || !IoIFP(io))
2518 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2524 if (ckWARN(WARN_CLOSED))
2525 report_evil_fh(gv, io, PL_op->op_type);
2526 SETERRNO(EBADF,SS_IVCHAN);
2529 DIE(aTHX_ PL_no_sock_func, "listen");
2541 char namebuf[MAXPATHLEN];
2542 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2543 Sock_size_t len = sizeof (struct sockaddr_in);
2545 Sock_size_t len = sizeof namebuf;
2558 if (!gstio || !IoIFP(gstio))
2562 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2566 do_close(ngv, FALSE);
2567 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2568 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2569 IoTYPE(nstio) = IoTYPE_SOCKET;
2570 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2571 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2572 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2573 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2576 #if defined(HAS_FCNTL) && defined(F_SETFD)
2577 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2581 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2582 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2584 #ifdef __SCO_VERSION__
2585 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2588 PUSHp(namebuf, len);
2592 if (ckWARN(WARN_CLOSED))
2593 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2594 SETERRNO(EBADF,SS_IVCHAN);
2600 DIE(aTHX_ PL_no_sock_func, "accept");
2610 register IO *io = GvIOn(gv);
2612 if (!io || !IoIFP(io))
2615 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2619 if (ckWARN(WARN_CLOSED))
2620 report_evil_fh(gv, io, PL_op->op_type);
2621 SETERRNO(EBADF,SS_IVCHAN);
2624 DIE(aTHX_ PL_no_sock_func, "shutdown");
2631 return pp_ssockopt();
2633 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2641 int optype = PL_op->op_type;
2644 unsigned int optname;
2650 if (optype == OP_GSOCKOPT)
2651 sv = sv_2mortal(NEWSV(22, 257));
2654 optname = (unsigned int) POPi;
2655 lvl = (unsigned int) POPi;
2659 if (!io || !IoIFP(io))
2662 fd = PerlIO_fileno(IoIFP(io));
2666 (void)SvPOK_only(sv);
2670 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2681 buf = SvPV_const(sv, l);
2685 aint = (int)SvIV(sv);
2686 buf = (const char*)&aint;
2689 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2698 if (ckWARN(WARN_CLOSED))
2699 report_evil_fh(gv, io, optype);
2700 SETERRNO(EBADF,SS_IVCHAN);
2705 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2712 return pp_getpeername();
2714 DIE(aTHX_ PL_no_sock_func, "getsockname");
2722 int optype = PL_op->op_type;
2726 register IO *io = GvIOn(gv);
2729 if (!io || !IoIFP(io))
2732 sv = sv_2mortal(NEWSV(22, 257));
2733 (void)SvPOK_only(sv);
2737 fd = PerlIO_fileno(IoIFP(io));
2739 case OP_GETSOCKNAME:
2740 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2743 case OP_GETPEERNAME:
2744 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2746 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2748 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";
2749 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2750 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2751 !memcmp((char *)SvPVX_const(sv) + sizeof(u_short), nowhere,
2752 sizeof(u_short) + sizeof(struct in_addr))) {
2759 #ifdef BOGUS_GETNAME_RETURN
2760 /* Interactive Unix, getpeername() and getsockname()
2761 does not return valid namelen */
2762 if (len == BOGUS_GETNAME_RETURN)
2763 len = sizeof(struct sockaddr);
2771 if (ckWARN(WARN_CLOSED))
2772 report_evil_fh(gv, io, optype);
2773 SETERRNO(EBADF,SS_IVCHAN);
2778 DIE(aTHX_ PL_no_sock_func, "getpeername");
2796 if (PL_op->op_flags & OPf_REF) {
2798 if (PL_op->op_type == OP_LSTAT) {
2799 if (gv != PL_defgv) {
2800 if (ckWARN(WARN_IO))
2801 Perl_warner(aTHX_ packWARN(WARN_IO),
2802 "lstat() on filehandle %s", GvENAME(gv));
2803 } else if (PL_laststype != OP_LSTAT)
2804 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2808 if (gv != PL_defgv) {
2809 PL_laststype = OP_STAT;
2811 sv_setpvn(PL_statname, "", 0);
2812 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2813 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2815 if (PL_laststatval < 0) {
2816 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2817 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2823 if (SvTYPE(sv) == SVt_PVGV) {
2827 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2829 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2830 Perl_warner(aTHX_ packWARN(WARN_IO),
2831 "lstat() on filehandle %s", GvENAME(gv));
2834 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2836 PL_laststype = PL_op->op_type;
2837 if (PL_op->op_type == OP_LSTAT)
2838 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2840 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2841 if (PL_laststatval < 0) {
2842 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2843 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2849 if (gimme != G_ARRAY) {
2850 if (gimme != G_VOID)
2851 XPUSHs(boolSV(max));
2857 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2858 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2859 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2860 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2861 #if Uid_t_size > IVSIZE
2862 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2864 # if Uid_t_sign <= 0
2865 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2867 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2870 #if Gid_t_size > IVSIZE
2871 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2873 # if Gid_t_sign <= 0
2874 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2876 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2879 #ifdef USE_STAT_RDEV
2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2882 PUSHs(sv_2mortal(newSVpvn("", 0)));
2884 #if Off_t_size > IVSIZE
2885 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2890 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2891 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2892 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2894 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2895 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2896 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2898 #ifdef USE_STAT_BLOCKS
2899 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2900 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2902 PUSHs(sv_2mortal(newSVpvn("", 0)));
2903 PUSHs(sv_2mortal(newSVpvn("", 0)));
2909 /* This macro is used by the stacked filetest operators :
2910 * if the previous filetest failed, short-circuit and pass its value.
2911 * Else, discard it from the stack and continue. --rgs
2913 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2914 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2915 else { (void)POPs; PUTBACK; } \
2922 STACKED_FTEST_CHECK;
2923 #if defined(HAS_ACCESS) && defined(R_OK)
2924 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2925 result = access(POPpx, R_OK);
2940 if (cando(S_IRUSR, 0, &PL_statcache))
2949 STACKED_FTEST_CHECK;
2950 #if defined(HAS_ACCESS) && defined(W_OK)
2951 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2952 result = access(POPpx, W_OK);
2967 if (cando(S_IWUSR, 0, &PL_statcache))
2976 STACKED_FTEST_CHECK;
2977 #if defined(HAS_ACCESS) && defined(X_OK)
2978 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2979 result = access(POPpx, X_OK);
2994 if (cando(S_IXUSR, 0, &PL_statcache))
3003 STACKED_FTEST_CHECK;
3004 #ifdef PERL_EFF_ACCESS_R_OK
3005 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3006 result = PERL_EFF_ACCESS_R_OK(POPpx);
3021 if (cando(S_IRUSR, 1, &PL_statcache))
3030 STACKED_FTEST_CHECK;
3031 #ifdef PERL_EFF_ACCESS_W_OK
3032 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3033 result = PERL_EFF_ACCESS_W_OK(POPpx);
3048 if (cando(S_IWUSR, 1, &PL_statcache))
3057 STACKED_FTEST_CHECK;
3058 #ifdef PERL_EFF_ACCESS_X_OK
3059 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3060 result = PERL_EFF_ACCESS_X_OK(POPpx);
3075 if (cando(S_IXUSR, 1, &PL_statcache))
3084 STACKED_FTEST_CHECK;
3094 return pp_ftrowned();
3101 STACKED_FTEST_CHECK;
3106 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3116 STACKED_FTEST_CHECK;
3121 if (PL_statcache.st_size == 0)
3130 STACKED_FTEST_CHECK;
3135 #if Off_t_size > IVSIZE
3136 PUSHn(PL_statcache.st_size);
3138 PUSHi(PL_statcache.st_size);
3147 STACKED_FTEST_CHECK;
3152 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3160 STACKED_FTEST_CHECK;
3165 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3173 STACKED_FTEST_CHECK;
3178 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3186 STACKED_FTEST_CHECK;
3191 if (S_ISSOCK(PL_statcache.st_mode))
3200 STACKED_FTEST_CHECK;
3205 if (S_ISCHR(PL_statcache.st_mode))
3214 STACKED_FTEST_CHECK;
3219 if (S_ISBLK(PL_statcache.st_mode))
3228 STACKED_FTEST_CHECK;
3233 if (S_ISREG(PL_statcache.st_mode))
3242 STACKED_FTEST_CHECK;
3247 if (S_ISDIR(PL_statcache.st_mode))
3256 STACKED_FTEST_CHECK;
3261 if (S_ISFIFO(PL_statcache.st_mode))
3268 I32 result = my_lstat();
3272 if (S_ISLNK(PL_statcache.st_mode))
3282 STACKED_FTEST_CHECK;
3287 if (PL_statcache.st_mode & S_ISUID)
3298 STACKED_FTEST_CHECK;
3303 if (PL_statcache.st_mode & S_ISGID)
3314 STACKED_FTEST_CHECK;
3319 if (PL_statcache.st_mode & S_ISVTX)
3332 STACKED_FTEST_CHECK;
3334 if (PL_op->op_flags & OPf_REF)
3336 else if (isGV(TOPs))
3338 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3339 gv = (GV*)SvRV(POPs);
3341 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3343 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3344 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3345 else if (tmpsv && SvOK(tmpsv)) {
3346 const char *tmps = SvPV_nolen_const(tmpsv);
3354 if (PerlLIO_isatty(fd))
3359 #if defined(atarist) /* this will work with atariST. Configure will
3360 make guesses for other systems. */
3361 # define FILE_base(f) ((f)->_base)
3362 # define FILE_ptr(f) ((f)->_ptr)
3363 # define FILE_cnt(f) ((f)->_cnt)
3364 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3374 register STDCHAR *s;
3380 STACKED_FTEST_CHECK;
3382 if (PL_op->op_flags & OPf_REF)
3384 else if (isGV(TOPs))
3386 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3387 gv = (GV*)SvRV(POPs);
3393 if (gv == PL_defgv) {
3395 io = GvIO(PL_statgv);
3398 goto really_filename;
3403 PL_laststatval = -1;
3404 sv_setpvn(PL_statname, "", 0);
3405 io = GvIO(PL_statgv);
3407 if (io && IoIFP(io)) {
3408 if (! PerlIO_has_base(IoIFP(io)))
3409 DIE(aTHX_ "-T and -B not implemented on filehandles");
3410 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3411 if (PL_laststatval < 0)
3413 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3414 if (PL_op->op_type == OP_FTTEXT)
3419 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3420 i = PerlIO_getc(IoIFP(io));
3422 (void)PerlIO_ungetc(IoIFP(io),i);
3424 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3426 len = PerlIO_get_bufsiz(IoIFP(io));
3427 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3428 /* sfio can have large buffers - limit to 512 */
3433 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3435 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3437 SETERRNO(EBADF,RMS_IFI);
3445 PL_laststype = OP_STAT;
3446 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3447 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3448 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3450 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3453 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3454 if (PL_laststatval < 0) {
3455 (void)PerlIO_close(fp);
3458 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3459 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3460 (void)PerlIO_close(fp);
3462 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3463 RETPUSHNO; /* special case NFS directories */
3464 RETPUSHYES; /* null file is anything */
3469 /* now scan s to look for textiness */
3470 /* XXX ASCII dependent code */
3472 #if defined(DOSISH) || defined(USEMYBINMODE)
3473 /* ignore trailing ^Z on short files */
3474 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3478 for (i = 0; i < len; i++, s++) {
3479 if (!*s) { /* null never allowed in text */
3484 else if (!(isPRINT(*s) || isSPACE(*s)))
3487 else if (*s & 128) {
3489 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3492 /* utf8 characters don't count as odd */
3493 if (UTF8_IS_START(*s)) {
3494 int ulen = UTF8SKIP(s);
3495 if (ulen < len - i) {
3497 for (j = 1; j < ulen; j++) {
3498 if (!UTF8_IS_CONTINUATION(s[j]))
3501 --ulen; /* loop does extra increment */
3511 *s != '\n' && *s != '\r' && *s != '\b' &&
3512 *s != '\t' && *s != '\f' && *s != 27)
3517 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3541 if( !tmps || !*tmps ) {
3542 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3543 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3545 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3550 deprecate("chdir('') or chdir(undef) as chdir()");
3551 tmps = SvPV_nolen_const(*svp);
3555 TAINT_PROPER("chdir");
3560 TAINT_PROPER("chdir");
3561 PUSHi( PerlDir_chdir(tmps) >= 0 );
3563 /* Clear the DEFAULT element of ENV so we'll get the new value
3565 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3573 dSP; dMARK; dTARGET;
3574 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3580 DIE(aTHX_ PL_no_func, "chown");
3589 TAINT_PROPER("chroot");
3590 PUSHi( chroot(tmps) >= 0 );
3593 DIE(aTHX_ PL_no_func, "chroot");
3599 dSP; dMARK; dTARGET;
3601 value = (I32)apply(PL_op->op_type, MARK, SP);
3609 dSP; dMARK; dTARGET;
3611 value = (I32)apply(PL_op->op_type, MARK, SP);
3619 dSP; dMARK; dTARGET;
3621 value = (I32)apply(PL_op->op_type, MARK, SP);
3631 const char *tmps2 = POPpconstx;
3632 const char *tmps = SvPV_nolen_const(TOPs);
3633 TAINT_PROPER("rename");
3635 anum = PerlLIO_rename(tmps, tmps2);
3637 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3638 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3641 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3642 (void)UNLINK(tmps2);
3643 if (!(anum = link(tmps, tmps2)))
3644 anum = UNLINK(tmps);
3656 const char *tmps2 = POPpconstx;
3657 const char *tmps = SvPV_nolen_const(TOPs);
3658 TAINT_PROPER("link");
3659 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3662 DIE(aTHX_ PL_no_func, "link");
3670 const char *tmps2 = POPpconstx;
3671 const char *tmps = SvPV_nolen_const(TOPs);
3672 TAINT_PROPER("symlink");
3673 SETi( symlink(tmps, tmps2) >= 0 );
3676 DIE(aTHX_ PL_no_func, "symlink");
3686 char buf[MAXPATHLEN];
3689 #ifndef INCOMPLETE_TAINTS
3693 len = readlink(tmps, buf, sizeof(buf) - 1);
3701 RETSETUNDEF; /* just pretend it's a normal file */
3705 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3707 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3709 char * const save_filename = filename;
3715 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3716 strcpy(cmdline, cmd);
3717 strcat(cmdline, " ");
3718 for (s = cmdline + strlen(cmdline); *filename; ) {
3723 myfp = PerlProc_popen(cmdline, "r");
3727 SV *tmpsv = sv_newmortal();
3728 /* Need to save/restore 'PL_rs' ?? */
3729 s = sv_gets(tmpsv, myfp, 0);
3730 (void)PerlProc_pclose(myfp);
3734 #ifdef HAS_SYS_ERRLIST
3739 /* you don't see this */
3741 #ifdef HAS_SYS_ERRLIST
3749 if (instr(s, errmsg)) {
3756 #define EACCES EPERM
3758 if (instr(s, "cannot make"))
3759 SETERRNO(EEXIST,RMS_FEX);
3760 else if (instr(s, "existing file"))
3761 SETERRNO(EEXIST,RMS_FEX);
3762 else if (instr(s, "ile exists"))
3763 SETERRNO(EEXIST,RMS_FEX);
3764 else if (instr(s, "non-exist"))
3765 SETERRNO(ENOENT,RMS_FNF);
3766 else if (instr(s, "does not exist"))
3767 SETERRNO(ENOENT,RMS_FNF);
3768 else if (instr(s, "not empty"))
3769 SETERRNO(EBUSY,SS_DEVOFFLINE);
3770 else if (instr(s, "cannot access"))
3771 SETERRNO(EACCES,RMS_PRV);
3773 SETERRNO(EPERM,RMS_PRV);
3776 else { /* some mkdirs return no failure indication */
3777 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3778 if (PL_op->op_type == OP_RMDIR)
3783 SETERRNO(EACCES,RMS_PRV); /* a guess */
3792 /* This macro removes trailing slashes from a directory name.
3793 * Different operating and file systems take differently to
3794 * trailing slashes. According to POSIX 1003.1 1996 Edition
3795 * any number of trailing slashes should be allowed.
3796 * Thusly we snip them away so that even non-conforming
3797 * systems are happy.
3798 * We should probably do this "filtering" for all
3799 * the functions that expect (potentially) directory names:
3800 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3801 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3803 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3804 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3807 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3808 (tmps) = savepvn((tmps), (len)); \
3828 TRIMSLASHES(tmps,len,copy);
3830 TAINT_PROPER("mkdir");
3832 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3834 SETi( dooneliner("mkdir", tmps) );
3835 oldumask = PerlLIO_umask(0);
3836 PerlLIO_umask(oldumask);
3837 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3851 TRIMSLASHES(tmps,len,copy);
3852 TAINT_PROPER("rmdir");
3854 SETi( PerlDir_rmdir(tmps) >= 0 );
3856 SETi( dooneliner("rmdir", tmps) );
3863 /* Directory calls. */
3867 #if defined(Direntry_t) && defined(HAS_READDIR)
3869 const char *dirname = POPpconstx;
3871 register IO *io = GvIOn(gv);
3877 PerlDir_close(IoDIRP(io));
3878 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3884 SETERRNO(EBADF,RMS_DIR);
3887 DIE(aTHX_ PL_no_dir_func, "opendir");
3893 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3894 DIE(aTHX_ PL_no_dir_func, "readdir");
3896 #if !defined(I_DIRENT) && !defined(VMS)
3897 Direntry_t *readdir (DIR *);
3902 const I32 gimme = GIMME;
3903 GV *gv = (GV *)POPs;
3904 register Direntry_t *dp;
3905 register IO *io = GvIOn(gv);
3907 if (!io || !IoDIRP(io))
3911 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3915 sv = newSVpvn(dp->d_name, dp->d_namlen);
3917 sv = newSVpv(dp->d_name, 0);
3919 #ifndef INCOMPLETE_TAINTS
3920 if (!(IoFLAGS(io) & IOf_UNTAINT))
3923 XPUSHs(sv_2mortal(sv));
3925 while (gimme == G_ARRAY);
3927 if (!dp && gimme != G_ARRAY)
3934 SETERRNO(EBADF,RMS_ISI);
3935 if (GIMME == G_ARRAY)
3944 #if defined(HAS_TELLDIR) || defined(telldir)
3946 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3947 /* XXX netbsd still seemed to.
3948 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3949 --JHI 1999-Feb-02 */
3950 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3951 long telldir (DIR *);
3954 register IO *io = GvIOn(gv);
3956 if (!io || !IoDIRP(io))
3959 PUSHi( PerlDir_tell(IoDIRP(io)) );
3963 SETERRNO(EBADF,RMS_ISI);
3966 DIE(aTHX_ PL_no_dir_func, "telldir");
3972 #if defined(HAS_SEEKDIR) || defined(seekdir)
3976 register IO *io = GvIOn(gv);
3978 if (!io || !IoDIRP(io))
3981 (void)PerlDir_seek(IoDIRP(io), along);
3986 SETERRNO(EBADF,RMS_ISI);
3989 DIE(aTHX_ PL_no_dir_func, "seekdir");
3995 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3998 register IO *io = GvIOn(gv);
4000 if (!io || !IoDIRP(io))
4003 (void)PerlDir_rewind(IoDIRP(io));
4007 SETERRNO(EBADF,RMS_ISI);
4010 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4016 #if defined(Direntry_t) && defined(HAS_READDIR)
4019 register IO *io = GvIOn(gv);
4021 if (!io || !IoDIRP(io))
4024 #ifdef VOID_CLOSEDIR
4025 PerlDir_close(IoDIRP(io));
4027 if (PerlDir_close(IoDIRP(io)) < 0) {
4028 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4037 SETERRNO(EBADF,RMS_IFI);
4040 DIE(aTHX_ PL_no_dir_func, "closedir");
4044 /* Process control. */
4054 PERL_FLUSHALL_FOR_CHILD;
4055 childpid = PerlProc_fork();
4059 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4060 SvREADONLY_off(GvSV(tmpgv));
4061 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4062 SvREADONLY_on(GvSV(tmpgv));
4064 #ifdef THREADS_HAVE_PIDS
4065 PL_ppid = (IV)getppid();
4067 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4072 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4077 PERL_FLUSHALL_FOR_CHILD;
4078 childpid = PerlProc_fork();
4084 DIE(aTHX_ PL_no_func, "fork");
4091 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4096 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4097 childpid = wait4pid(-1, &argflags, 0);
4099 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4104 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4105 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4106 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4108 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4113 DIE(aTHX_ PL_no_func, "wait");
4119 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4128 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4129 result = wait4pid(pid, &argflags, optype);
4131 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4136 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4137 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4138 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4140 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4145 DIE(aTHX_ PL_no_func, "waitpid");
4151 dSP; dMARK; dORIGMARK; dTARGET;
4157 while (++MARK <= SP) {
4158 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4163 TAINT_PROPER("system");
4165 PERL_FLUSHALL_FOR_CHILD;
4166 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4172 if (PerlProc_pipe(pp) >= 0)
4174 while ((childpid = PerlProc_fork()) == -1) {
4175 if (errno != EAGAIN) {
4180 PerlLIO_close(pp[0]);
4181 PerlLIO_close(pp[1]);
4188 Sigsave_t ihand,qhand; /* place to save signals during system() */
4192 PerlLIO_close(pp[1]);
4194 rsignal_save(SIGINT, SIG_IGN, &ihand);
4195 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4198 result = wait4pid(childpid, &status, 0);
4199 } while (result == -1 && errno == EINTR);
4201 (void)rsignal_restore(SIGINT, &ihand);
4202 (void)rsignal_restore(SIGQUIT, &qhand);
4204 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4205 do_execfree(); /* free any memory child malloced on fork */
4211 while (n < sizeof(int)) {
4212 n1 = PerlLIO_read(pp[0],
4213 (void*)(((char*)&errkid)+n),
4219 PerlLIO_close(pp[0]);
4220 if (n) { /* Error */
4221 if (n != sizeof(int))
4222 DIE(aTHX_ "panic: kid popen errno read");
4223 errno = errkid; /* Propagate errno from kid */
4224 STATUS_CURRENT = -1;
4227 PUSHi(STATUS_CURRENT);
4231 PerlLIO_close(pp[0]);
4232 #if defined(HAS_FCNTL) && defined(F_SETFD)
4233 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4236 if (PL_op->op_flags & OPf_STACKED) {
4237 SV *really = *++MARK;
4238 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4240 else if (SP - MARK != 1)
4241 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4243 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4247 #else /* ! FORK or VMS or OS/2 */
4250 if (PL_op->op_flags & OPf_STACKED) {
4251 SV *really = *++MARK;
4252 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4253 value = (I32)do_aspawn(really, MARK, SP);
4255 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4258 else if (SP - MARK != 1) {
4259 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4260 value = (I32)do_aspawn(Nullsv, MARK, SP);
4262 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4266 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4268 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4270 STATUS_NATIVE_SET(value);
4273 PUSHi(result ? value : STATUS_CURRENT);
4274 #endif /* !FORK or VMS */
4280 dSP; dMARK; dORIGMARK; dTARGET;
4285 while (++MARK <= SP) {
4286 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4291 TAINT_PROPER("exec");
4293 PERL_FLUSHALL_FOR_CHILD;
4294 if (PL_op->op_flags & OPf_STACKED) {
4295 SV *really = *++MARK;
4296 value = (I32)do_aexec(really, MARK, SP);
4298 else if (SP - MARK != 1)
4300 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4304 (void ) do_aspawn(Nullsv, MARK, SP);
4308 value = (I32)do_aexec(Nullsv, MARK, SP);
4313 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4316 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4319 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4332 dSP; dMARK; dTARGET;
4334 value = (I32)apply(PL_op->op_type, MARK, SP);
4339 DIE(aTHX_ PL_no_func, "kill");
4347 # ifdef THREADS_HAVE_PIDS
4348 if (PL_ppid != 1 && getppid() == 1)
4349 /* maybe the parent process has died. Refresh ppid cache */
4353 XPUSHi( getppid() );
4357 DIE(aTHX_ PL_no_func, "getppid");
4373 pgrp = (I32)BSD_GETPGRP(pid);
4375 if (pid != 0 && pid != PerlProc_getpid())
4376 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4382 DIE(aTHX_ PL_no_func, "getpgrp()");
4401 TAINT_PROPER("setpgrp");
4403 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4405 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4406 || (pid != 0 && pid != PerlProc_getpid()))
4408 DIE(aTHX_ "setpgrp can't take arguments");
4410 SETi( setpgrp() >= 0 );
4411 #endif /* USE_BSDPGRP */
4414 DIE(aTHX_ PL_no_func, "setpgrp()");
4420 #ifdef HAS_GETPRIORITY
4424 SETi( getpriority(which, who) );
4427 DIE(aTHX_ PL_no_func, "getpriority()");
4433 #ifdef HAS_SETPRIORITY
4438 TAINT_PROPER("setpriority");
4439 SETi( setpriority(which, who, niceval) >= 0 );
4442 DIE(aTHX_ PL_no_func, "setpriority()");
4452 XPUSHn( time(Null(Time_t*)) );
4454 XPUSHi( time(Null(Time_t*)) );
4465 (void)PerlProc_times(&PL_timesbuf);
4467 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4468 /* struct tms, though same data */
4472 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4473 if (GIMME == G_ARRAY) {
4474 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4475 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4476 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4482 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4484 if (GIMME == G_ARRAY) {
4485 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4486 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4487 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4491 DIE(aTHX_ "times not implemented");
4493 #endif /* HAS_TIMES */
4505 const struct tm *tmbuf;
4506 static const char * const dayname[] =
4507 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4508 static const char * const monname[] =
4509 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4510 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4516 when = (Time_t)SvNVx(POPs);
4518 when = (Time_t)SvIVx(POPs);
4521 if (PL_op->op_type == OP_LOCALTIME)
4522 tmbuf = localtime(&when);
4524 tmbuf = gmtime(&when);
4526 if (GIMME != G_ARRAY) {
4532 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4533 dayname[tmbuf->tm_wday],
4534 monname[tmbuf->tm_mon],
4539 tmbuf->tm_year + 1900);
4540 PUSHs(sv_2mortal(tsv));
4545 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4546 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4547 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4548 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4549 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4550 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4551 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4552 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4553 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4564 anum = alarm((unsigned int)anum);
4571 DIE(aTHX_ PL_no_func, "alarm");
4582 (void)time(&lasttime);
4587 PerlProc_sleep((unsigned int)duration);
4590 XPUSHi(when - lasttime);
4594 /* Shared memory. */
4608 return pp_shmwrite();
4613 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4614 dSP; dMARK; dTARGET;
4615 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4624 /* Message passing. */
4638 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4639 dSP; dMARK; dTARGET;
4640 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4651 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4652 dSP; dMARK; dTARGET;
4653 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4666 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4667 dSP; dMARK; dTARGET;
4668 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4675 DIE(aTHX_ "System V IPC is not implemented on this machine");
4681 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4682 dSP; dMARK; dTARGET;
4683 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4691 PUSHp(zero_but_true, ZBTLEN);
4701 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4702 dSP; dMARK; dTARGET;
4703 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4712 /* Get system info. */
4716 #ifdef HAS_GETHOSTBYNAME
4717 return pp_ghostent();
4719 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4725 #ifdef HAS_GETHOSTBYADDR
4726 return pp_ghostent();
4728 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4734 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4736 I32 which = PL_op->op_type;
4737 register char **elem;
4739 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4740 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4741 struct hostent *gethostbyname(Netdb_name_t);
4742 struct hostent *gethostent(void);
4744 struct hostent *hent;
4748 if (which == OP_GHBYNAME) {
4749 #ifdef HAS_GETHOSTBYNAME
4750 char* name = POPpbytex;
4751 hent = PerlSock_gethostbyname(name);
4753 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4756 else if (which == OP_GHBYADDR) {
4757 #ifdef HAS_GETHOSTBYADDR
4758 int addrtype = POPi;
4761 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4763 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4765 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4769 #ifdef HAS_GETHOSTENT
4770 hent = PerlSock_gethostent();
4772 DIE(aTHX_ PL_no_sock_func, "gethostent");
4775 #ifdef HOST_NOT_FOUND
4777 #ifdef USE_REENTRANT_API
4778 # ifdef USE_GETHOSTENT_ERRNO
4779 h_errno = PL_reentrant_buffer->_gethostent_errno;
4782 STATUS_NATIVE_SET(h_errno);
4786 if (GIMME != G_ARRAY) {
4787 PUSHs(sv = sv_newmortal());
4789 if (which == OP_GHBYNAME) {
4791 sv_setpvn(sv, hent->h_addr, hent->h_length);
4794 sv_setpv(sv, (char*)hent->h_name);
4800 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4801 sv_setpv(sv, (char*)hent->h_name);
4802 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4803 for (elem = hent->h_aliases; elem && *elem; elem++) {
4804 sv_catpv(sv, *elem);
4806 sv_catpvn(sv, " ", 1);
4808 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4809 sv_setiv(sv, (IV)hent->h_addrtype);
4810 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4811 len = hent->h_length;
4812 sv_setiv(sv, (IV)len);
4814 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4815 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4816 sv_setpvn(sv, *elem, len);
4819 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4821 sv_setpvn(sv, hent->h_addr, len);
4826 DIE(aTHX_ PL_no_sock_func, "gethostent");
4832 #ifdef HAS_GETNETBYNAME
4833 return pp_gnetent();
4835 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4841 #ifdef HAS_GETNETBYADDR
4842 return pp_gnetent();
4844 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4850 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4852 I32 which = PL_op->op_type;
4853 register char **elem;
4855 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4856 struct netent *getnetbyaddr(Netdb_net_t, int);
4857 struct netent *getnetbyname(Netdb_name_t);
4858 struct netent *getnetent(void);
4860 struct netent *nent;
4862 if (which == OP_GNBYNAME){
4863 #ifdef HAS_GETNETBYNAME
4864 char *name = POPpbytex;
4865 nent = PerlSock_getnetbyname(name);
4867 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4870 else if (which == OP_GNBYADDR) {
4871 #ifdef HAS_GETNETBYADDR
4872 int addrtype = POPi;
4873 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4874 nent = PerlSock_getnetbyaddr(addr, addrtype);
4876 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4880 #ifdef HAS_GETNETENT
4881 nent = PerlSock_getnetent();
4883 DIE(aTHX_ PL_no_sock_func, "getnetent");
4886 #ifdef HOST_NOT_FOUND
4888 #ifdef USE_REENTRANT_API
4889 # ifdef USE_GETNETENT_ERRNO
4890 h_errno = PL_reentrant_buffer->_getnetent_errno;
4893 STATUS_NATIVE_SET(h_errno);
4898 if (GIMME != G_ARRAY) {
4899 PUSHs(sv = sv_newmortal());
4901 if (which == OP_GNBYNAME)
4902 sv_setiv(sv, (IV)nent->n_net);
4904 sv_setpv(sv, nent->n_name);
4910 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4911 sv_setpv(sv, nent->n_name);
4912 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4913 for (elem = nent->n_aliases; elem && *elem; elem++) {
4914 sv_catpv(sv, *elem);
4916 sv_catpvn(sv, " ", 1);
4918 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4919 sv_setiv(sv, (IV)nent->n_addrtype);
4920 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4921 sv_setiv(sv, (IV)nent->n_net);
4926 DIE(aTHX_ PL_no_sock_func, "getnetent");
4932 #ifdef HAS_GETPROTOBYNAME
4933 return pp_gprotoent();
4935 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4941 #ifdef HAS_GETPROTOBYNUMBER
4942 return pp_gprotoent();
4944 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4950 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4952 I32 which = PL_op->op_type;
4953 register char **elem;
4955 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4956 struct protoent *getprotobyname(Netdb_name_t);
4957 struct protoent *getprotobynumber(int);
4958 struct protoent *getprotoent(void);
4960 struct protoent *pent;
4962 if (which == OP_GPBYNAME) {
4963 #ifdef HAS_GETPROTOBYNAME
4964 char* name = POPpbytex;
4965 pent = PerlSock_getprotobyname(name);
4967 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4970 else if (which == OP_GPBYNUMBER) {
4971 #ifdef HAS_GETPROTOBYNUMBER
4973 pent = PerlSock_getprotobynumber(number);
4975 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4979 #ifdef HAS_GETPROTOENT
4980 pent = PerlSock_getprotoent();
4982 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4986 if (GIMME != G_ARRAY) {
4987 PUSHs(sv = sv_newmortal());
4989 if (which == OP_GPBYNAME)
4990 sv_setiv(sv, (IV)pent->p_proto);
4992 sv_setpv(sv, pent->p_name);
4998 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4999 sv_setpv(sv, pent->p_name);
5000 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5001 for (elem = pent->p_aliases; elem && *elem; elem++) {
5002 sv_catpv(sv, *elem);
5004 sv_catpvn(sv, " ", 1);
5006 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5007 sv_setiv(sv, (IV)pent->p_proto);
5012 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5018 #ifdef HAS_GETSERVBYNAME
5019 return pp_gservent();
5021 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5027 #ifdef HAS_GETSERVBYPORT
5028 return pp_gservent();
5030 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5036 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5038 I32 which = PL_op->op_type;
5039 register char **elem;
5041 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5042 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5043 struct servent *getservbyport(int, Netdb_name_t);
5044 struct servent *getservent(void);
5046 struct servent *sent;
5048 if (which == OP_GSBYNAME) {
5049 #ifdef HAS_GETSERVBYNAME
5050 char *proto = POPpbytex;
5051 char *name = POPpbytex;
5053 if (proto && !*proto)
5056 sent = PerlSock_getservbyname(name, proto);
5058 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5061 else if (which == OP_GSBYPORT) {
5062 #ifdef HAS_GETSERVBYPORT
5063 char *proto = POPpbytex;
5064 unsigned short port = (unsigned short)POPu;
5066 if (proto && !*proto)
5070 port = PerlSock_htons(port);
5072 sent = PerlSock_getservbyport(port, proto);
5074 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5078 #ifdef HAS_GETSERVENT
5079 sent = PerlSock_getservent();
5081 DIE(aTHX_ PL_no_sock_func, "getservent");
5085 if (GIMME != G_ARRAY) {
5086 PUSHs(sv = sv_newmortal());
5088 if (which == OP_GSBYNAME) {
5090 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5092 sv_setiv(sv, (IV)(sent->s_port));
5096 sv_setpv(sv, sent->s_name);
5102 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5103 sv_setpv(sv, sent->s_name);
5104 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5105 for (elem = sent->s_aliases; elem && *elem; elem++) {
5106 sv_catpv(sv, *elem);
5108 sv_catpvn(sv, " ", 1);
5110 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5112 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5114 sv_setiv(sv, (IV)(sent->s_port));
5116 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5117 sv_setpv(sv, sent->s_proto);
5122 DIE(aTHX_ PL_no_sock_func, "getservent");
5128 #ifdef HAS_SETHOSTENT
5130 PerlSock_sethostent(TOPi);
5133 DIE(aTHX_ PL_no_sock_func, "sethostent");
5139 #ifdef HAS_SETNETENT
5141 PerlSock_setnetent(TOPi);
5144 DIE(aTHX_ PL_no_sock_func, "setnetent");
5150 #ifdef HAS_SETPROTOENT
5152 PerlSock_setprotoent(TOPi);
5155 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5161 #ifdef HAS_SETSERVENT
5163 PerlSock_setservent(TOPi);
5166 DIE(aTHX_ PL_no_sock_func, "setservent");
5172 #ifdef HAS_ENDHOSTENT
5174 PerlSock_endhostent();
5178 DIE(aTHX_ PL_no_sock_func, "endhostent");
5184 #ifdef HAS_ENDNETENT
5186 PerlSock_endnetent();
5190 DIE(aTHX_ PL_no_sock_func, "endnetent");
5196 #ifdef HAS_ENDPROTOENT
5198 PerlSock_endprotoent();
5202 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5208 #ifdef HAS_ENDSERVENT
5210 PerlSock_endservent();
5214 DIE(aTHX_ PL_no_sock_func, "endservent");
5223 DIE(aTHX_ PL_no_func, "getpwnam");
5232 DIE(aTHX_ PL_no_func, "getpwuid");
5240 I32 which = PL_op->op_type;
5242 struct passwd *pwent = NULL;
5244 * We currently support only the SysV getsp* shadow password interface.
5245 * The interface is declared in <shadow.h> and often one needs to link
5246 * with -lsecurity or some such.
5247 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5250 * AIX getpwnam() is clever enough to return the encrypted password
5251 * only if the caller (euid?) is root.
5253 * There are at least three other shadow password APIs. Many platforms
5254 * seem to contain more than one interface for accessing the shadow
5255 * password databases, possibly for compatibility reasons.
5256 * The getsp*() is by far he simplest one, the other two interfaces
5257 * are much more complicated, but also very similar to each other.
5262 * struct pr_passwd *getprpw*();
5263 * The password is in
5264 * char getprpw*(...).ufld.fd_encrypt[]
5265 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5270 * struct es_passwd *getespw*();
5271 * The password is in
5272 * char *(getespw*(...).ufld.fd_encrypt)
5273 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5276 * struct userpw *getuserpw();
5277 * The password is in
5278 * char *(getuserpw(...)).spw_upw_passwd
5279 * (but the de facto standard getpwnam() should work okay)
5281 * Mention I_PROT here so that Configure probes for it.
5283 * In HP-UX for getprpw*() the manual page claims that one should include
5284 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5285 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5286 * and pp_sys.c already includes <shadow.h> if there is such.
5288 * Note that <sys/security.h> is already probed for, but currently
5289 * it is only included in special cases.
5291 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5292 * be preferred interface, even though also the getprpw*() interface
5293 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5294 * One also needs to call set_auth_parameters() in main() before
5295 * doing anything else, whether one is using getespw*() or getprpw*().
5297 * Note that accessing the shadow databases can be magnitudes
5298 * slower than accessing the standard databases.
5303 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5304 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5305 * the pw_comment is left uninitialized. */
5306 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5312 char* name = POPpbytex;
5313 pwent = getpwnam(name);
5319 pwent = getpwuid(uid);
5323 # ifdef HAS_GETPWENT
5325 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5326 if (pwent) pwent = getpwnam(pwent->pw_name);
5329 DIE(aTHX_ PL_no_func, "getpwent");
5335 if (GIMME != G_ARRAY) {
5336 PUSHs(sv = sv_newmortal());
5338 if (which == OP_GPWNAM)
5339 # if Uid_t_sign <= 0
5340 sv_setiv(sv, (IV)pwent->pw_uid);
5342 sv_setuv(sv, (UV)pwent->pw_uid);
5345 sv_setpv(sv, pwent->pw_name);
5351 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5352 sv_setpv(sv, pwent->pw_name);
5354 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5356 /* If we have getspnam(), we try to dig up the shadow
5357 * password. If we are underprivileged, the shadow
5358 * interface will set the errno to EACCES or similar,
5359 * and return a null pointer. If this happens, we will
5360 * use the dummy password (usually "*" or "x") from the
5361 * standard password database.
5363 * In theory we could skip the shadow call completely
5364 * if euid != 0 but in practice we cannot know which
5365 * security measures are guarding the shadow databases
5366 * on a random platform.
5368 * Resist the urge to use additional shadow interfaces.
5369 * Divert the urge to writing an extension instead.
5372 /* Some AIX setups falsely(?) detect some getspnam(), which
5373 * has a different API than the Solaris/IRIX one. */
5374 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5376 struct spwd *spwent;
5377 int saverrno; /* Save and restore errno so that
5378 * underprivileged attempts seem
5379 * to have never made the unsccessful
5380 * attempt to retrieve the shadow password. */
5383 spwent = getspnam(pwent->pw_name);
5385 if (spwent && spwent->sp_pwdp)
5386 sv_setpv(sv, spwent->sp_pwdp);
5390 if (!SvPOK(sv)) /* Use the standard password, then. */
5391 sv_setpv(sv, pwent->pw_passwd);
5394 # ifndef INCOMPLETE_TAINTS
5395 /* passwd is tainted because user himself can diddle with it.
5396 * admittedly not much and in a very limited way, but nevertheless. */
5400 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5401 # if Uid_t_sign <= 0
5402 sv_setiv(sv, (IV)pwent->pw_uid);
5404 sv_setuv(sv, (UV)pwent->pw_uid);
5407 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5408 # if Uid_t_sign <= 0
5409 sv_setiv(sv, (IV)pwent->pw_gid);
5411 sv_setuv(sv, (UV)pwent->pw_gid);
5413 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5414 * because of the poor interface of the Perl getpw*(),
5415 * not because there's some standard/convention saying so.
5416 * A better interface would have been to return a hash,
5417 * but we are accursed by our history, alas. --jhi. */
5418 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5420 sv_setiv(sv, (IV)pwent->pw_change);
5423 sv_setiv(sv, (IV)pwent->pw_quota);
5426 sv_setpv(sv, pwent->pw_age);
5431 /* pw_class and pw_comment are mutually exclusive--.
5432 * see the above note for pw_change, pw_quota, and pw_age. */
5433 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5435 sv_setpv(sv, pwent->pw_class);
5438 sv_setpv(sv, pwent->pw_comment);
5442 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5444 sv_setpv(sv, pwent->pw_gecos);
5446 # ifndef INCOMPLETE_TAINTS
5447 /* pw_gecos is tainted because user himself can diddle with it. */
5451 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5452 sv_setpv(sv, pwent->pw_dir);
5454 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5455 sv_setpv(sv, pwent->pw_shell);
5456 # ifndef INCOMPLETE_TAINTS
5457 /* pw_shell is tainted because user himself can diddle with it. */
5462 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5463 sv_setiv(sv, (IV)pwent->pw_expire);
5468 DIE(aTHX_ PL_no_func, "getpwent");
5474 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5479 DIE(aTHX_ PL_no_func, "setpwent");
5485 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5490 DIE(aTHX_ PL_no_func, "endpwent");
5499 DIE(aTHX_ PL_no_func, "getgrnam");
5508 DIE(aTHX_ PL_no_func, "getgrgid");
5516 I32 which = PL_op->op_type;
5517 register char **elem;
5519 struct group *grent;
5521 if (which == OP_GGRNAM) {
5522 char* name = POPpbytex;
5523 grent = (struct group *)getgrnam(name);
5525 else if (which == OP_GGRGID) {
5527 grent = (struct group *)getgrgid(gid);
5531 grent = (struct group *)getgrent();
5533 DIE(aTHX_ PL_no_func, "getgrent");
5537 if (GIMME != G_ARRAY) {
5538 PUSHs(sv = sv_newmortal());
5540 if (which == OP_GGRNAM)
5541 sv_setiv(sv, (IV)grent->gr_gid);
5543 sv_setpv(sv, grent->gr_name);
5549 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5550 sv_setpv(sv, grent->gr_name);
5552 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5554 sv_setpv(sv, grent->gr_passwd);
5557 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5558 sv_setiv(sv, (IV)grent->gr_gid);
5560 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5561 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5562 /* In UNICOS/mk (_CRAYMPP) the multithreading
5563 * versions (getgrnam_r, getgrgid_r)
5564 * seem to return an illegal pointer
5565 * as the group members list, gr_mem.
5566 * getgrent() doesn't even have a _r version
5567 * but the gr_mem is poisonous anyway.
5568 * So yes, you cannot get the list of group
5569 * members if building multithreaded in UNICOS/mk. */
5570 for (elem = grent->gr_mem; elem && *elem; elem++) {
5571 sv_catpv(sv, *elem);
5573 sv_catpvn(sv, " ", 1);
5580 DIE(aTHX_ PL_no_func, "getgrent");
5586 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5591 DIE(aTHX_ PL_no_func, "setgrent");
5597 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5602 DIE(aTHX_ PL_no_func, "endgrent");
5612 if (!(tmps = PerlProc_getlogin()))
5614 PUSHp(tmps, strlen(tmps));
5617 DIE(aTHX_ PL_no_func, "getlogin");
5621 /* Miscellaneous. */
5626 dSP; dMARK; dORIGMARK; dTARGET;
5627 register I32 items = SP - MARK;
5628 unsigned long a[20];
5633 while (++MARK <= SP) {
5634 if (SvTAINTED(*MARK)) {
5640 TAINT_PROPER("syscall");
5643 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5644 * or where sizeof(long) != sizeof(char*). But such machines will
5645 * not likely have syscall implemented either, so who cares?
5647 while (++MARK <= SP) {
5648 if (SvNIOK(*MARK) || !i)
5649 a[i++] = SvIV(*MARK);
5650 else if (*MARK == &PL_sv_undef)
5653 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5659 DIE(aTHX_ "Too many args to syscall");
5661 DIE(aTHX_ "Too few args to syscall");
5663 retval = syscall(a[0]);
5666 retval = syscall(a[0],a[1]);
5669 retval = syscall(a[0],a[1],a[2]);
5672 retval = syscall(a[0],a[1],a[2],a[3]);
5675 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5678 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5681 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5684 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5688 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5691 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5694 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5698 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5702 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5706 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5707 a[10],a[11],a[12],a[13]);
5709 #endif /* atarist */
5715 DIE(aTHX_ PL_no_func, "syscall");
5719 #ifdef FCNTL_EMULATE_FLOCK
5721 /* XXX Emulate flock() with fcntl().
5722 What's really needed is a good file locking module.
5726 fcntl_emulate_flock(int fd, int operation)
5730 switch (operation & ~LOCK_NB) {
5732 flock.l_type = F_RDLCK;
5735 flock.l_type = F_WRLCK;
5738 flock.l_type = F_UNLCK;
5744 flock.l_whence = SEEK_SET;
5745 flock.l_start = flock.l_len = (Off_t)0;
5747 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5750 #endif /* FCNTL_EMULATE_FLOCK */
5752 #ifdef LOCKF_EMULATE_FLOCK
5754 /* XXX Emulate flock() with lockf(). This is just to increase
5755 portability of scripts. The calls are not completely
5756 interchangeable. What's really needed is a good file
5760 /* The lockf() constants might have been defined in <unistd.h>.
5761 Unfortunately, <unistd.h> causes troubles on some mixed
5762 (BSD/POSIX) systems, such as SunOS 4.1.3.
5764 Further, the lockf() constants aren't POSIX, so they might not be
5765 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5766 just stick in the SVID values and be done with it. Sigh.
5770 # define F_ULOCK 0 /* Unlock a previously locked region */
5773 # define F_LOCK 1 /* Lock a region for exclusive use */
5776 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5779 # define F_TEST 3 /* Test a region for other processes locks */
5783 lockf_emulate_flock(int fd, int operation)
5789 /* flock locks entire file so for lockf we need to do the same */
5791 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5792 if (pos > 0) /* is seekable and needs to be repositioned */
5793 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5794 pos = -1; /* seek failed, so don't seek back afterwards */
5797 switch (operation) {
5799 /* LOCK_SH - get a shared lock */
5801 /* LOCK_EX - get an exclusive lock */
5803 i = lockf (fd, F_LOCK, 0);
5806 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5807 case LOCK_SH|LOCK_NB:
5808 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5809 case LOCK_EX|LOCK_NB:
5810 i = lockf (fd, F_TLOCK, 0);
5812 if ((errno == EAGAIN) || (errno == EACCES))
5813 errno = EWOULDBLOCK;
5816 /* LOCK_UN - unlock (non-blocking is a no-op) */
5818 case LOCK_UN|LOCK_NB:
5819 i = lockf (fd, F_ULOCK, 0);
5822 /* Default - can't decipher operation */
5829 if (pos > 0) /* need to restore position of the handle */
5830 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5835 #endif /* LOCKF_EMULATE_FLOCK */
5839 * c-indentation-style: bsd
5841 * indent-tabs-mode: t
5844 * ex: set ts=8 sts=4 sw=4 noet: