3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 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>. */
50 extern "C" int syscall(unsigned long,...);
55 # include <sys/wait.h>
59 # include <sys/resource.h>
68 # include <sys/select.h>
72 /* XXX Configure test needed.
73 h_errno might not be a simple 'int', especially for multi-threaded
74 applications, see "extern int errno in perl.h". Creating such
75 a test requires taking into account the differences between
76 compiling multithreaded and singlethreaded ($ccflags et al).
77 HOST_NOT_FOUND is typically defined in <netdb.h>.
79 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
88 struct passwd *getpwnam (char *);
89 struct passwd *getpwuid (Uid_t);
94 struct passwd *getpwent (void);
95 #elif defined (VMS) && defined (my_getpwent)
96 struct passwd *Perl_my_getpwent (void);
105 struct group *getgrnam (char *);
106 struct group *getgrgid (Gid_t);
110 struct group *getgrent (void);
116 # if defined(_MSC_VER) || defined(__MINGW32__)
117 # include <sys/utime.h>
124 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
127 # define my_chsize PerlLIO_chsize
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 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)
312 Perl_croak(aTHX_ "switching effective uid is not implemented");
328 if (PL_op->op_private & OPpOPEN_IN_RAW)
330 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
332 fp = PerlProc_popen(tmps, mode);
335 if (PL_curcop->cop_io) {
336 type = SvPV_nolen(PL_curcop->cop_io);
339 PerlIO_apply_layers(aTHX_ fp,mode,type);
341 if (gimme == G_VOID) {
343 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
347 else if (gimme == G_SCALAR) {
349 PL_rs = &PL_sv_undef;
350 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
351 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
363 if (sv_gets(sv, fp, 0) == Nullch) {
367 XPUSHs(sv_2mortal(sv));
368 if (SvLEN(sv) - SvCUR(sv) > 20) {
369 SvLEN_set(sv, SvCUR(sv)+1);
370 Renew(SvPVX(sv), SvLEN(sv), char);
375 STATUS_NATIVE_SET(PerlProc_pclose(fp));
376 TAINT; /* "I believe that this is not gratuitous!" */
379 STATUS_NATIVE_SET(-1);
380 if (gimme == G_SCALAR)
390 tryAMAGICunTARGET(iter, -1);
392 /* Note that we only ever get here if File::Glob fails to load
393 * without at the same time croaking, for some reason, or if
394 * perl was built with PERL_EXTERNAL_GLOB */
401 * The external globbing program may use things we can't control,
402 * so for security reasons we must assume the worst.
405 taint_proper(PL_no_security, "glob");
409 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
410 PL_last_in_gv = (GV*)*PL_stack_sp--;
412 SAVESPTR(PL_rs); /* This is not permanent, either. */
413 PL_rs = sv_2mortal(newSVpvn("\000", 1));
416 *SvPVX(PL_rs) = '\n';
420 result = do_readline();
427 PL_last_in_gv = cGVOP_gv;
428 return do_readline();
437 if (SP - MARK != 1) {
439 do_join(TARG, &PL_sv_no, MARK, SP);
446 tmps = SvPV(tmpsv, len);
447 if ((!tmps || !len) && PL_errgv) {
449 (void)SvUPGRADE(error, SVt_PV);
450 if (SvPOK(error) && SvCUR(error))
451 sv_catpv(error, "\t...caught");
453 tmps = SvPV(tmpsv, len);
456 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
458 Perl_warn(aTHX_ "%"SVf, tmpsv);
470 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
472 if (SP - MARK != 1) {
474 do_join(TARG, &PL_sv_no, MARK, SP);
476 tmps = SvPV(tmpsv, len);
482 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
486 (void)SvUPGRADE(error, SVt_PV);
487 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
489 SvSetSV(error,tmpsv);
490 else if (sv_isobject(error)) {
491 HV *stash = SvSTASH(SvRV(error));
492 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
494 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
495 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
502 call_sv((SV*)GvCV(gv),
503 G_SCALAR|G_EVAL|G_KEEPERR);
504 sv_setsv(error,*PL_stack_sp--);
507 DIE(aTHX_ Nullformat);
510 if (SvPOK(error) && SvCUR(error))
511 sv_catpv(error, "\t...propagated");
513 tmps = SvPV(tmpsv, len);
517 tmpsv = sv_2mortal(newSVpvn("Died", 4));
519 DIE(aTHX_ "%"SVf, tmpsv);
539 DIE(aTHX_ PL_no_usym, "filehandle");
540 if ((io = GvIOp(gv)))
541 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
543 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
544 /* Method's args are same as ours ... */
545 /* ... except handle is replaced by the object */
546 *MARK-- = SvTIED_obj((SV*)io, mg);
550 call_method("OPEN", G_SCALAR);
563 tmps = SvPV(sv, len);
564 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
567 PUSHi( (I32)PL_forkprocess );
568 else if (PL_forkprocess == 0) /* we are a new child */
587 if (gv && (io = GvIO(gv))
588 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
591 XPUSHs(SvTIED_obj((SV*)io, mg));
594 call_method("CLOSE", G_SCALAR);
600 PUSHs(boolSV(do_close(gv, TRUE)));
620 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
621 DIE(aTHX_ PL_no_usym, "filehandle");
626 do_close(rgv, FALSE);
628 do_close(wgv, FALSE);
630 if (PerlProc_pipe(fd) < 0)
633 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
634 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
635 IoOFP(rstio) = IoIFP(rstio);
636 IoIFP(wstio) = IoOFP(wstio);
637 IoTYPE(rstio) = IoTYPE_RDONLY;
638 IoTYPE(wstio) = IoTYPE_WRONLY;
640 if (!IoIFP(rstio) || !IoOFP(wstio)) {
641 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
642 else PerlLIO_close(fd[0]);
643 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
644 else PerlLIO_close(fd[1]);
647 #if defined(HAS_FCNTL) && defined(F_SETFD)
648 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
649 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
656 DIE(aTHX_ PL_no_func, "pipe");
672 if (gv && (io = GvIO(gv))
673 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
676 XPUSHs(SvTIED_obj((SV*)io, mg));
679 call_method("FILENO", G_SCALAR);
685 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
686 /* Can't do this because people seem to do things like
687 defined(fileno($foo)) to check whether $foo is a valid fh.
688 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
689 report_evil_fh(gv, io, PL_op->op_type);
694 PUSHi(PerlIO_fileno(fp));
705 anum = PerlLIO_umask(0);
706 (void)PerlLIO_umask(anum);
709 anum = PerlLIO_umask(POPi);
710 TAINT_PROPER("umask");
713 /* Only DIE if trying to restrict permissions on `user' (self).
714 * Otherwise it's harmless and more useful to just return undef
715 * since 'group' and 'other' concepts probably don't exist here. */
716 if (MAXARG >= 1 && (POPi & 0700))
717 DIE(aTHX_ "umask not implemented");
718 XPUSHs(&PL_sv_undef);
740 if (gv && (io = GvIO(gv))
741 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
744 XPUSHs(SvTIED_obj((SV*)io, mg));
749 call_method("BINMODE", G_SCALAR);
756 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
757 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
758 report_evil_fh(gv, io, PL_op->op_type);
759 SETERRNO(EBADF,RMS_IFI);
764 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
765 (discp) ? SvPV_nolen(discp) : Nullch)) {
766 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
767 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
768 mode_from_discipline(discp),
769 (discp) ? SvPV_nolen(discp) : Nullch)) {
791 I32 markoff = MARK - PL_stack_base;
793 int how = PERL_MAGIC_tied;
797 switch(SvTYPE(varsv)) {
799 methname = "TIEHASH";
800 HvEITER((HV *)varsv) = Null(HE *);
803 methname = "TIEARRAY";
806 #ifdef GV_UNIQUE_CHECK
807 if (GvUNIQUE((GV*)varsv)) {
808 Perl_croak(aTHX_ "Attempt to tie unique GV");
811 methname = "TIEHANDLE";
812 how = PERL_MAGIC_tiedscalar;
813 /* For tied filehandles, we apply tiedscalar magic to the IO
814 slot of the GP rather than the GV itself. AMS 20010812 */
816 GvIOp(varsv) = newIO();
817 varsv = (SV *)GvIOp(varsv);
820 methname = "TIESCALAR";
821 how = PERL_MAGIC_tiedscalar;
825 if (sv_isobject(*MARK)) {
827 PUSHSTACKi(PERLSI_MAGIC);
829 EXTEND(SP,(I32)items);
833 call_method(methname, G_SCALAR);
836 /* Not clear why we don't call call_method here too.
837 * perhaps to get different error message ?
839 stash = gv_stashsv(*MARK, FALSE);
840 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
841 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
845 PUSHSTACKi(PERLSI_MAGIC);
847 EXTEND(SP,(I32)items);
851 call_sv((SV*)GvCV(gv), G_SCALAR);
857 if (sv_isobject(sv)) {
858 sv_unmagic(varsv, how);
859 /* Croak if a self-tie on an aggregate is attempted. */
860 if (varsv == SvRV(sv) &&
861 (SvTYPE(varsv) == SVt_PVAV ||
862 SvTYPE(varsv) == SVt_PVHV))
864 "Self-ties of arrays and hashes are not supported");
865 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
868 SP = PL_stack_base + markoff;
878 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
879 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
881 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
884 if ((mg = SvTIED_mg(sv, how))) {
885 SV *obj = SvRV(SvTIED_obj(sv, mg));
889 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
890 isGV(gv) && (cv = GvCV(gv))) {
892 XPUSHs(SvTIED_obj((SV*)gv, mg));
893 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
896 call_sv((SV *)cv, G_VOID);
900 else if (ckWARN(WARN_UNTIE)) {
901 if (mg && SvREFCNT(obj) > 1)
902 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
903 "untie attempted while %"UVuf" inner references still exist",
904 (UV)SvREFCNT(obj) - 1 ) ;
908 sv_unmagic(sv, how) ;
917 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
918 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
920 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
923 if ((mg = SvTIED_mg(sv, how))) {
924 SV *osv = SvTIED_obj(sv, mg);
925 if (osv == mg->mg_obj)
926 osv = sv_mortalcopy(osv);
944 sv = sv_mortalcopy(&PL_sv_no);
945 sv_setpv(sv, "AnyDBM_File");
946 stash = gv_stashsv(sv, FALSE);
947 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
949 require_pv("AnyDBM_File.pm");
951 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
952 DIE(aTHX_ "No dbm on this machine");
962 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
964 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
967 call_sv((SV*)GvCV(gv), G_SCALAR);
970 if (!sv_isobject(TOPs)) {
975 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
978 call_sv((SV*)GvCV(gv), G_SCALAR);
982 if (sv_isobject(TOPs)) {
983 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
984 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1006 struct timeval timebuf;
1007 struct timeval *tbuf = &timebuf;
1011 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1016 # if BYTEORDER & 0xf0000
1017 # define ORDERBYTE (0x88888888 - BYTEORDER)
1019 # define ORDERBYTE (0x4444 - BYTEORDER)
1025 for (i = 1; i <= 3; i++) {
1033 /* little endians can use vecs directly */
1034 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1041 masksize = NFDBITS / NBBY;
1043 masksize = sizeof(long); /* documented int, everyone seems to use long */
1045 Zero(&fd_sets[0], 4, char*);
1048 # if SELECT_MIN_BITS == 1
1049 growsize = sizeof(fd_set);
1051 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1052 # undef SELECT_MIN_BITS
1053 # define SELECT_MIN_BITS __FD_SETSIZE
1055 /* If SELECT_MIN_BITS is greater than one we most probably will want
1056 * to align the sizes with SELECT_MIN_BITS/8 because for example
1057 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1058 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1059 * on (sets/tests/clears bits) is 32 bits. */
1060 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1068 timebuf.tv_sec = (long)value;
1069 value -= (NV)timebuf.tv_sec;
1070 timebuf.tv_usec = (long)(value * 1000000.0);
1073 tbuf = Null(struct timeval*);
1075 for (i = 1; i <= 3; i++) {
1081 else if (!SvPOK(sv))
1082 SvPV_force(sv,n_a); /* force string conversion */
1085 Sv_Grow(sv, growsize);
1089 while (++j <= growsize) {
1093 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1095 New(403, fd_sets[i], growsize, char);
1096 for (offset = 0; offset < growsize; offset += masksize) {
1097 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1098 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1101 fd_sets[i] = SvPVX(sv);
1105 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1106 /* Can't make just the (void*) conditional because that would be
1107 * cpp #if within cpp macro, and not all compilers like that. */
1108 nfound = PerlSock_select(
1110 (Select_fd_set_t) fd_sets[1],
1111 (Select_fd_set_t) fd_sets[2],
1112 (Select_fd_set_t) fd_sets[3],
1113 (void*) tbuf); /* Workaround for compiler bug. */
1115 nfound = PerlSock_select(
1117 (Select_fd_set_t) fd_sets[1],
1118 (Select_fd_set_t) fd_sets[2],
1119 (Select_fd_set_t) fd_sets[3],
1122 for (i = 1; i <= 3; i++) {
1125 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1127 for (offset = 0; offset < growsize; offset += masksize) {
1128 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1129 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1131 Safefree(fd_sets[i]);
1138 if (GIMME == G_ARRAY && tbuf) {
1139 value = (NV)(timebuf.tv_sec) +
1140 (NV)(timebuf.tv_usec) / 1000000.0;
1141 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1142 sv_setnv(sv, value);
1146 DIE(aTHX_ "select not implemented");
1151 Perl_setdefout(pTHX_ GV *gv)
1154 (void)SvREFCNT_inc(gv);
1156 SvREFCNT_dec(PL_defoutgv);
1163 GV *newdefout, *egv;
1166 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1168 egv = GvEGV(PL_defoutgv);
1173 XPUSHs(&PL_sv_undef);
1175 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1176 if (gvp && *gvp == egv) {
1177 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1181 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1186 if (!GvIO(newdefout))
1187 gv_IOadd(newdefout);
1188 setdefout(newdefout);
1206 if (gv && (io = GvIO(gv))
1207 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1209 I32 gimme = GIMME_V;
1211 XPUSHs(SvTIED_obj((SV*)io, mg));
1214 call_method("GETC", gimme);
1217 if (gimme == G_SCALAR)
1218 SvSetMagicSV_nosteal(TARG, TOPs);
1221 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1222 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1223 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1224 report_evil_fh(gv, io, PL_op->op_type);
1225 SETERRNO(EBADF,RMS_IFI);
1229 sv_setpv(TARG, " ");
1230 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1231 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1232 /* Find out how many bytes the char needs */
1233 Size_t len = UTF8SKIP(SvPVX(TARG));
1236 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1237 SvCUR_set(TARG,1+len);
1247 return pp_sysread();
1251 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1253 register PERL_CONTEXT *cx;
1254 I32 gimme = GIMME_V;
1259 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1261 cx->blk_sub.retop = retop;
1262 PAD_SET_CUR(CvPADLIST(cv), 1);
1264 setdefout(gv); /* locally select filehandle so $% et al work */
1297 SV *tmpsv = sv_newmortal();
1298 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1299 name = SvPV_nolen(tmpsv);
1302 DIE(aTHX_ "Undefined format \"%s\" called", name);
1303 DIE(aTHX_ "Not a format reference");
1306 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1308 IoFLAGS(io) &= ~IOf_DIDTOP;
1309 return doform(cv,gv,PL_op->op_next);
1315 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1316 register IO *io = GvIOp(gv);
1317 PerlIO *ofp = IoOFP(io);
1321 register PERL_CONTEXT *cx;
1323 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1324 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1327 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1328 PL_formtarget != PL_toptarget)
1332 if (!IoTOP_GV(io)) {
1336 if (!IoTOP_NAME(io)) {
1337 if (!IoFMT_NAME(io))
1338 IoFMT_NAME(io) = savepv(GvNAME(gv));
1339 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1340 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1341 if ((topgv && GvFORM(topgv)) ||
1342 !gv_fetchpv("top",FALSE,SVt_PVFM))
1343 IoTOP_NAME(io) = savepv(SvPVX(topname));
1345 IoTOP_NAME(io) = savepv("top");
1347 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1348 if (!topgv || !GvFORM(topgv)) {
1349 IoLINES_LEFT(io) = 100000000;
1352 IoTOP_GV(io) = topgv;
1354 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1355 I32 lines = IoLINES_LEFT(io);
1356 char *s = SvPVX(PL_formtarget);
1357 if (lines <= 0) /* Yow, header didn't even fit!!! */
1359 while (lines-- > 0) {
1360 s = strchr(s, '\n');
1366 STRLEN save = SvCUR(PL_formtarget);
1367 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1368 do_print(PL_formtarget, ofp);
1369 SvCUR_set(PL_formtarget, save);
1370 sv_chop(PL_formtarget, s);
1371 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1374 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1375 do_print(PL_formfeed, ofp);
1376 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1378 PL_formtarget = PL_toptarget;
1379 IoFLAGS(io) |= IOf_DIDTOP;
1382 DIE(aTHX_ "bad top format reference");
1387 SV *sv = sv_newmortal();
1388 gv_efullname4(sv, fgv, Nullch, FALSE);
1389 name = SvPV_nolen(sv);
1392 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1395 DIE(aTHX_ "Undefined top format called");
1399 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1400 return doform(cv,gv,PL_op);
1404 POPBLOCK(cx,PL_curpm);
1410 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1412 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1413 else if (ckWARN(WARN_CLOSED))
1414 report_evil_fh(gv, io, PL_op->op_type);
1419 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1420 if (ckWARN(WARN_IO))
1421 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1423 if (!do_print(PL_formtarget, fp))
1426 FmLINES(PL_formtarget) = 0;
1427 SvCUR_set(PL_formtarget, 0);
1428 *SvEND(PL_formtarget) = '\0';
1429 if (IoFLAGS(io) & IOf_FLUSH)
1430 (void)PerlIO_flush(fp);
1435 PL_formtarget = PL_bodytarget;
1437 return cx->blk_sub.retop;
1442 dSP; dMARK; dORIGMARK;
1449 if (PL_op->op_flags & OPf_STACKED)
1454 if (gv && (io = GvIO(gv))
1455 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1457 if (MARK == ORIGMARK) {
1460 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1464 *MARK = SvTIED_obj((SV*)io, mg);
1467 call_method("PRINTF", G_SCALAR);
1470 MARK = ORIGMARK + 1;
1477 if (!(io = GvIO(gv))) {
1478 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1479 report_evil_fh(gv, io, PL_op->op_type);
1480 SETERRNO(EBADF,RMS_IFI);
1483 else if (!(fp = IoOFP(io))) {
1484 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1486 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1487 else if (ckWARN(WARN_CLOSED))
1488 report_evil_fh(gv, io, PL_op->op_type);
1490 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1494 do_sprintf(sv, SP - MARK, MARK + 1);
1495 if (!do_print(sv, fp))
1498 if (IoFLAGS(io) & IOf_FLUSH)
1499 if (PerlIO_flush(fp) == EOF)
1510 PUSHs(&PL_sv_undef);
1531 /* Need TIEHANDLE method ? */
1533 tmps = SvPV(sv, len);
1534 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1535 IoLINES(GvIOp(gv)) = 0;
1539 PUSHs(&PL_sv_undef);
1546 dSP; dMARK; dORIGMARK; dTARGET;
1553 Sock_size_t bufsize;
1562 bool charstart = FALSE;
1563 STRLEN charskip = 0;
1567 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1568 && gv && (io = GvIO(gv))
1569 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1574 *MARK = SvTIED_obj((SV*)io, mg);
1576 call_method("READ", G_SCALAR);
1589 sv_setpvn(bufsv, "", 0);
1590 length = SvIVx(*++MARK);
1593 offset = SvIVx(*++MARK);
1597 if (!io || !IoIFP(io)) {
1598 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1599 report_evil_fh(gv, io, PL_op->op_type);
1600 SETERRNO(EBADF,RMS_IFI);
1603 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1604 buffer = SvPVutf8_force(bufsv, blen);
1605 /* UTF-8 may not have been set if they are all low bytes */
1610 buffer = SvPV_force(bufsv, blen);
1611 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1614 DIE(aTHX_ "Negative length");
1622 if (PL_op->op_type == OP_RECV) {
1623 char namebuf[MAXPATHLEN];
1624 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1625 bufsize = sizeof (struct sockaddr_in);
1627 bufsize = sizeof namebuf;
1629 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1633 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1634 /* 'offset' means 'flags' here */
1635 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1636 (struct sockaddr *)namebuf, &bufsize);
1640 /* Bogus return without padding */
1641 bufsize = sizeof (struct sockaddr_in);
1643 SvCUR_set(bufsv, count);
1644 *SvEND(bufsv) = '\0';
1645 (void)SvPOK_only(bufsv);
1649 /* This should not be marked tainted if the fp is marked clean */
1650 if (!(IoFLAGS(io) & IOf_UNTAINT))
1651 SvTAINTED_on(bufsv);
1653 sv_setpvn(TARG, namebuf, bufsize);
1658 if (PL_op->op_type == OP_RECV)
1659 DIE(aTHX_ PL_no_sock_func, "recv");
1661 if (DO_UTF8(bufsv)) {
1662 /* offset adjust in characters not bytes */
1663 blen = sv_len_utf8(bufsv);
1666 if (-offset > (int)blen)
1667 DIE(aTHX_ "Offset outside string");
1670 if (DO_UTF8(bufsv)) {
1671 /* convert offset-as-chars to offset-as-bytes */
1672 if (offset >= (int)blen)
1673 offset += SvCUR(bufsv) - blen;
1675 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1678 bufsize = SvCUR(bufsv);
1679 /* Allocating length + offset + 1 isn't perfect in the case of reading
1680 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1682 (should be 2 * length + offset + 1, or possibly something longer if
1683 PL_encoding is true) */
1684 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1685 if (offset > bufsize) { /* Zero any newly allocated space */
1686 Zero(buffer+bufsize, offset-bufsize, char);
1688 buffer = buffer + offset;
1690 read_target = bufsv;
1692 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1693 concatenate it to the current buffer. */
1695 /* Truncate the existing buffer to the start of where we will be
1697 SvCUR_set(bufsv, offset);
1699 read_target = sv_newmortal();
1700 SvUPGRADE(read_target, SVt_PV);
1701 buffer = SvGROW(read_target, length + 1);
1704 if (PL_op->op_type == OP_SYSREAD) {
1705 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1706 if (IoTYPE(io) == IoTYPE_SOCKET) {
1707 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1713 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1718 #ifdef HAS_SOCKET__bad_code_maybe
1719 if (IoTYPE(io) == IoTYPE_SOCKET) {
1720 char namebuf[MAXPATHLEN];
1721 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1722 bufsize = sizeof (struct sockaddr_in);
1724 bufsize = sizeof namebuf;
1726 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1727 (struct sockaddr *)namebuf, &bufsize);
1732 count = PerlIO_read(IoIFP(io), buffer, length);
1733 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1734 if (count == 0 && PerlIO_error(IoIFP(io)))
1738 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1739 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1742 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1743 *SvEND(read_target) = '\0';
1744 (void)SvPOK_only(read_target);
1745 if (fp_utf8 && !IN_BYTES) {
1746 /* Look at utf8 we got back and count the characters */
1747 char *bend = buffer + count;
1748 while (buffer < bend) {
1750 skip = UTF8SKIP(buffer);
1753 if (buffer - charskip + skip > bend) {
1754 /* partial character - try for rest of it */
1755 length = skip - (bend-buffer);
1756 offset = bend - SvPVX(bufsv);
1768 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1769 provided amount read (count) was what was requested (length)
1771 if (got < wanted && count == length) {
1772 length = wanted - got;
1773 offset = bend - SvPVX(bufsv);
1776 /* return value is character count */
1780 else if (buffer_utf8) {
1781 /* Let svcatsv upgrade the bytes we read in to utf8.
1782 The buffer is a mortal so will be freed soon. */
1783 sv_catsv_nomg(bufsv, read_target);
1786 /* This should not be marked tainted if the fp is marked clean */
1787 if (!(IoFLAGS(io) & IOf_UNTAINT))
1788 SvTAINTED_on(bufsv);
1801 int items = (SP - PL_stack_base) - TOPMARK;
1805 sv = sv_2mortal(newSViv(sv_len(*SP)));
1814 dSP; dMARK; dORIGMARK; dTARGET;
1825 if (PL_op->op_type == OP_SYSWRITE
1826 && gv && (io = GvIO(gv))
1827 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1832 *MARK = SvTIED_obj((SV*)io, mg);
1834 call_method("WRITE", G_SCALAR);
1845 #if Size_t_size > IVSIZE
1846 length = (Size_t)SvNVx(*++MARK);
1848 length = (Size_t)SvIVx(*++MARK);
1850 if ((SSize_t)length < 0)
1851 DIE(aTHX_ "Negative length");
1854 if (!io || !IoIFP(io)) {
1856 if (ckWARN(WARN_CLOSED))
1857 report_evil_fh(gv, io, PL_op->op_type);
1858 SETERRNO(EBADF,RMS_IFI);
1862 if (PerlIO_isutf8(IoIFP(io))) {
1863 if (!SvUTF8(bufsv)) {
1864 bufsv = sv_2mortal(newSVsv(bufsv));
1865 buffer = sv_2pvutf8(bufsv, &blen);
1867 buffer = SvPV(bufsv, blen);
1870 if (DO_UTF8(bufsv)) {
1871 /* Not modifying source SV, so making a temporary copy. */
1872 bufsv = sv_2mortal(newSVsv(bufsv));
1873 sv_utf8_downgrade(bufsv, FALSE);
1875 buffer = SvPV(bufsv, blen);
1878 if (PL_op->op_type == OP_SYSWRITE) {
1880 if (DO_UTF8(bufsv)) {
1881 /* length and offset are in chars */
1882 blen = sv_len_utf8(bufsv);
1885 offset = SvIVx(*++MARK);
1887 if (-offset > (IV)blen)
1888 DIE(aTHX_ "Offset outside string");
1890 } else if (offset >= (IV)blen && blen > 0)
1891 DIE(aTHX_ "Offset outside string");
1894 if (length > blen - offset)
1895 length = blen - offset;
1896 if (DO_UTF8(bufsv)) {
1897 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1898 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1901 buffer = buffer+offset;
1903 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1904 if (IoTYPE(io) == IoTYPE_SOCKET) {
1905 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1911 /* See the note at doio.c:do_print about filesize limits. --jhi */
1912 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1917 else if (SP > MARK) {
1920 sockbuf = SvPVx(*++MARK, mlen);
1921 /* length is really flags */
1922 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1923 length, (struct sockaddr *)sockbuf, mlen);
1926 /* length is really flags */
1927 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1930 DIE(aTHX_ PL_no_sock_func, "send");
1936 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1937 #if Size_t_size > IVSIZE
1951 return pp_sysread();
1962 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1964 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1966 if (io && !IoIFP(io)) {
1967 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1969 IoFLAGS(io) &= ~IOf_START;
1970 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1971 sv_setpvn(GvSV(gv), "-", 1);
1972 SvSETMAGIC(GvSV(gv));
1974 else if (!nextargv(gv))
1979 gv = PL_last_in_gv; /* eof */
1982 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1984 if (gv && (io = GvIO(gv))
1985 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1988 XPUSHs(SvTIED_obj((SV*)io, mg));
1991 call_method("EOF", G_SCALAR);
1997 PUSHs(boolSV(!gv || do_eof(gv)));
2011 gv = PL_last_in_gv = (GV*)POPs;
2013 if (gv && (io = GvIO(gv))
2014 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2017 XPUSHs(SvTIED_obj((SV*)io, mg));
2020 call_method("TELL", G_SCALAR);
2026 #if LSEEKSIZE > IVSIZE
2027 PUSHn( do_tell(gv) );
2029 PUSHi( do_tell(gv) );
2036 return pp_sysseek();
2045 #if LSEEKSIZE > IVSIZE
2046 Off_t offset = (Off_t)SvNVx(POPs);
2048 Off_t offset = (Off_t)SvIVx(POPs);
2052 gv = PL_last_in_gv = (GV*)POPs;
2054 if (gv && (io = GvIO(gv))
2055 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2058 XPUSHs(SvTIED_obj((SV*)io, mg));
2059 #if LSEEKSIZE > IVSIZE
2060 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2062 XPUSHs(sv_2mortal(newSViv(offset)));
2064 XPUSHs(sv_2mortal(newSViv(whence)));
2067 call_method("SEEK", G_SCALAR);
2073 if (PL_op->op_type == OP_SEEK)
2074 PUSHs(boolSV(do_seek(gv, offset, whence)));
2076 Off_t sought = do_sysseek(gv, offset, whence);
2078 PUSHs(&PL_sv_undef);
2081 #if LSEEKSIZE > IVSIZE
2086 : newSVpvn(zero_but_true, ZBTLEN);
2087 PUSHs(sv_2mortal(sv));
2096 /* There seems to be no consensus on the length type of truncate()
2097 * and ftruncate(), both off_t and size_t have supporters. In
2098 * general one would think that when using large files, off_t is
2099 * at least as wide as size_t, so using an off_t should be okay. */
2100 /* XXX Configure probe for the length type of *truncate() needed XXX */
2103 #if Off_t_size > IVSIZE
2108 /* Checking for length < 0 is problematic as the type might or
2109 * might not be signed: if it is not, clever compilers will moan. */
2110 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2112 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
2118 if (PL_op->op_flags & OPf_SPECIAL) {
2119 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2128 TAINT_PROPER("truncate");
2129 if (!(fp = IoIFP(io))) {
2135 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2137 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2148 if (SvTYPE(sv) == SVt_PVGV) {
2149 tmpgv = (GV*)sv; /* *main::FRED for example */
2150 goto do_ftruncate_gv;
2152 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2153 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2154 goto do_ftruncate_gv;
2156 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2157 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2158 goto do_ftruncate_io;
2161 name = SvPV(sv, n_a);
2162 TAINT_PROPER("truncate");
2164 if (truncate(name, len) < 0)
2170 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2173 if (my_chsize(tmpfd, len) < 0)
2175 PerlLIO_close(tmpfd);
2184 SETERRNO(EBADF,RMS_IFI);
2188 DIE(aTHX_ "truncate not implemented");
2201 unsigned int func = POPu;
2202 int optype = PL_op->op_type;
2206 IO *io = gv ? GvIOn(gv) : 0;
2208 if (!io || !argsv || !IoIFP(io)) {
2209 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2210 report_evil_fh(gv, io, PL_op->op_type);
2211 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2215 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2218 s = SvPV_force(argsv, len);
2219 need = IOCPARM_LEN(func);
2221 s = Sv_Grow(argsv, need + 1);
2222 SvCUR_set(argsv, need);
2225 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2228 retval = SvIV(argsv);
2229 s = INT2PTR(char*,retval); /* ouch */
2232 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2234 if (optype == OP_IOCTL)
2236 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2238 DIE(aTHX_ "ioctl is not implemented");
2242 DIE(aTHX_ "fcntl is not implemented");
2244 #if defined(OS2) && defined(__EMX__)
2245 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2247 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2251 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2253 if (s[SvCUR(argsv)] != 17)
2254 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2256 s[SvCUR(argsv)] = 0; /* put our null back */
2257 SvSETMAGIC(argsv); /* Assume it has changed */
2266 PUSHp(zero_but_true, ZBTLEN);
2287 if (gv && (io = GvIO(gv)))
2294 (void)PerlIO_flush(fp);
2295 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2298 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2299 report_evil_fh(gv, io, PL_op->op_type);
2301 SETERRNO(EBADF,RMS_IFI);
2306 DIE(aTHX_ PL_no_func, "flock()");
2318 int protocol = POPi;
2324 io = gv ? GvIOn(gv) : NULL;
2327 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2328 report_evil_fh(gv, io, PL_op->op_type);
2330 do_close(gv, FALSE);
2331 SETERRNO(EBADF,LIB_INVARG);
2336 do_close(gv, FALSE);
2338 TAINT_PROPER("socket");
2339 fd = PerlSock_socket(domain, type, protocol);
2342 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2343 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2344 IoTYPE(io) = IoTYPE_SOCKET;
2345 if (!IoIFP(io) || !IoOFP(io)) {
2346 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2347 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2348 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2351 #if defined(HAS_FCNTL) && defined(F_SETFD)
2352 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2356 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2361 DIE(aTHX_ PL_no_sock_func, "socket");
2367 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2373 int protocol = POPi;
2380 io1 = gv1 ? GvIOn(gv1) : NULL;
2381 io2 = gv2 ? GvIOn(gv2) : NULL;
2382 if (!gv1 || !gv2 || !io1 || !io2) {
2383 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2385 report_evil_fh(gv1, io1, PL_op->op_type);
2387 report_evil_fh(gv1, io2, PL_op->op_type);
2390 do_close(gv1, FALSE);
2392 do_close(gv2, FALSE);
2397 do_close(gv1, FALSE);
2399 do_close(gv2, FALSE);
2401 TAINT_PROPER("socketpair");
2402 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2404 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2405 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2406 IoTYPE(io1) = IoTYPE_SOCKET;
2407 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2408 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2409 IoTYPE(io2) = IoTYPE_SOCKET;
2410 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2411 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2412 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2413 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2414 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2415 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2416 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2419 #if defined(HAS_FCNTL) && defined(F_SETFD)
2420 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2421 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2426 DIE(aTHX_ PL_no_sock_func, "socketpair");
2434 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2435 extern void GETPRIVMODE();
2436 extern void GETUSERMODE();
2441 register IO *io = GvIOn(gv);
2445 int mpeprivmode = 0;
2448 if (!io || !IoIFP(io))
2451 addr = SvPV(addrsv, len);
2452 TAINT_PROPER("bind");
2453 #ifdef MPE /* Deal with MPE bind() peculiarities */
2454 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2455 /* The address *MUST* stupidly be zero. */
2456 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2457 /* PRIV mode is required to bind() to ports < 1024. */
2458 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2459 ((struct sockaddr_in *)addr)->sin_port > 0) {
2460 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2465 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2466 (struct sockaddr *)addr, len) >= 0)
2469 #ifdef MPE /* Switch back to USER mode */
2480 if (ckWARN(WARN_CLOSED))
2481 report_evil_fh(gv, io, PL_op->op_type);
2482 SETERRNO(EBADF,SS_IVCHAN);
2485 DIE(aTHX_ PL_no_sock_func, "bind");
2496 register IO *io = GvIOn(gv);
2499 if (!io || !IoIFP(io))
2502 addr = SvPV(addrsv, len);
2503 TAINT_PROPER("connect");
2504 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2510 if (ckWARN(WARN_CLOSED))
2511 report_evil_fh(gv, io, PL_op->op_type);
2512 SETERRNO(EBADF,SS_IVCHAN);
2515 DIE(aTHX_ PL_no_sock_func, "connect");
2525 register IO *io = gv ? GvIOn(gv) : NULL;
2527 if (!gv || !io || !IoIFP(io))
2530 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2536 if (ckWARN(WARN_CLOSED))
2537 report_evil_fh(gv, io, PL_op->op_type);
2538 SETERRNO(EBADF,SS_IVCHAN);
2541 DIE(aTHX_ PL_no_sock_func, "listen");
2553 char namebuf[MAXPATHLEN];
2554 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2555 Sock_size_t len = sizeof (struct sockaddr_in);
2557 Sock_size_t len = sizeof namebuf;
2570 if (!gstio || !IoIFP(gstio))
2574 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2578 do_close(ngv, FALSE);
2579 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2580 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2581 IoTYPE(nstio) = IoTYPE_SOCKET;
2582 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2583 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2584 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2585 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2588 #if defined(HAS_FCNTL) && defined(F_SETFD)
2589 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2593 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2594 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2596 #ifdef __SCO_VERSION__
2597 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2600 PUSHp(namebuf, len);
2604 if (ckWARN(WARN_CLOSED))
2605 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2606 SETERRNO(EBADF,SS_IVCHAN);
2612 DIE(aTHX_ PL_no_sock_func, "accept");
2622 register IO *io = GvIOn(gv);
2624 if (!io || !IoIFP(io))
2627 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2631 if (ckWARN(WARN_CLOSED))
2632 report_evil_fh(gv, io, PL_op->op_type);
2633 SETERRNO(EBADF,SS_IVCHAN);
2636 DIE(aTHX_ PL_no_sock_func, "shutdown");
2643 return pp_ssockopt();
2645 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2653 int optype = PL_op->op_type;
2656 unsigned int optname;
2662 if (optype == OP_GSOCKOPT)
2663 sv = sv_2mortal(NEWSV(22, 257));
2666 optname = (unsigned int) POPi;
2667 lvl = (unsigned int) POPi;
2671 if (!io || !IoIFP(io))
2674 fd = PerlIO_fileno(IoIFP(io));
2678 (void)SvPOK_only(sv);
2682 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2697 aint = (int)SvIV(sv);
2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2710 if (ckWARN(WARN_CLOSED))
2711 report_evil_fh(gv, io, optype);
2712 SETERRNO(EBADF,SS_IVCHAN);
2717 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2724 return pp_getpeername();
2726 DIE(aTHX_ PL_no_sock_func, "getsockname");
2734 int optype = PL_op->op_type;
2738 register IO *io = GvIOn(gv);
2741 if (!io || !IoIFP(io))
2744 sv = sv_2mortal(NEWSV(22, 257));
2745 (void)SvPOK_only(sv);
2749 fd = PerlIO_fileno(IoIFP(io));
2751 case OP_GETSOCKNAME:
2752 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2755 case OP_GETPEERNAME:
2756 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2758 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2760 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";
2761 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2762 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2763 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2764 sizeof(u_short) + sizeof(struct in_addr))) {
2771 #ifdef BOGUS_GETNAME_RETURN
2772 /* Interactive Unix, getpeername() and getsockname()
2773 does not return valid namelen */
2774 if (len == BOGUS_GETNAME_RETURN)
2775 len = sizeof(struct sockaddr);
2783 if (ckWARN(WARN_CLOSED))
2784 report_evil_fh(gv, io, optype);
2785 SETERRNO(EBADF,SS_IVCHAN);
2790 DIE(aTHX_ PL_no_sock_func, "getpeername");
2809 if (PL_op->op_flags & OPf_REF) {
2811 if (PL_op->op_type == OP_LSTAT) {
2812 if (gv != PL_defgv) {
2813 if (ckWARN(WARN_IO))
2814 Perl_warner(aTHX_ packWARN(WARN_IO),
2815 "lstat() on filehandle %s", GvENAME(gv));
2816 } else if (PL_laststype != OP_LSTAT)
2817 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2821 if (gv != PL_defgv) {
2822 PL_laststype = OP_STAT;
2824 sv_setpv(PL_statname, "");
2825 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2826 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2828 if (PL_laststatval < 0) {
2829 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2830 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2836 if (SvTYPE(sv) == SVt_PVGV) {
2840 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2842 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2843 Perl_warner(aTHX_ packWARN(WARN_IO),
2844 "lstat() on filehandle %s", GvENAME(gv));
2847 sv_setpv(PL_statname, SvPV(sv,n_a));
2850 PL_laststype = PL_op->op_type;
2851 if (PL_op->op_type == OP_LSTAT)
2852 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2855 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2856 if (PL_laststatval < 0) {
2857 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2858 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2864 if (gimme != G_ARRAY) {
2865 if (gimme != G_VOID)
2866 XPUSHs(boolSV(max));
2872 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2873 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2874 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2875 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2876 #if Uid_t_size > IVSIZE
2877 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2879 # if Uid_t_sign <= 0
2880 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2882 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2885 #if Gid_t_size > IVSIZE
2886 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2888 # if Gid_t_sign <= 0
2889 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2891 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2894 #ifdef USE_STAT_RDEV
2895 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2897 PUSHs(sv_2mortal(newSVpvn("", 0)));
2899 #if Off_t_size > IVSIZE
2900 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2906 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2907 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2910 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2911 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2913 #ifdef USE_STAT_BLOCKS
2914 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2915 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2917 PUSHs(sv_2mortal(newSVpvn("", 0)));
2918 PUSHs(sv_2mortal(newSVpvn("", 0)));
2924 /* This macro is used by the stacked filetest operators :
2925 * if the previous filetest failed, short-circuit and pass its value.
2926 * Else, discard it from the stack and continue. --rgs
2928 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2929 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2930 else { (void)POPs; PUTBACK; } \
2937 STACKED_FTEST_CHECK;
2938 #if defined(HAS_ACCESS) && defined(R_OK)
2939 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2941 result = access(POPpx, R_OK);
2956 if (cando(S_IRUSR, 0, &PL_statcache))
2965 STACKED_FTEST_CHECK;
2966 #if defined(HAS_ACCESS) && defined(W_OK)
2967 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2969 result = access(POPpx, W_OK);
2984 if (cando(S_IWUSR, 0, &PL_statcache))
2993 STACKED_FTEST_CHECK;
2994 #if defined(HAS_ACCESS) && defined(X_OK)
2995 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2997 result = access(POPpx, X_OK);
3012 if (cando(S_IXUSR, 0, &PL_statcache))
3021 STACKED_FTEST_CHECK;
3022 #ifdef PERL_EFF_ACCESS_R_OK
3023 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3025 result = PERL_EFF_ACCESS_R_OK(POPpx);
3040 if (cando(S_IRUSR, 1, &PL_statcache))
3049 STACKED_FTEST_CHECK;
3050 #ifdef PERL_EFF_ACCESS_W_OK
3051 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3053 result = PERL_EFF_ACCESS_W_OK(POPpx);
3068 if (cando(S_IWUSR, 1, &PL_statcache))
3077 STACKED_FTEST_CHECK;
3078 #ifdef PERL_EFF_ACCESS_X_OK
3079 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3081 result = PERL_EFF_ACCESS_X_OK(POPpx);
3096 if (cando(S_IXUSR, 1, &PL_statcache))
3105 STACKED_FTEST_CHECK;
3115 return pp_ftrowned();
3122 STACKED_FTEST_CHECK;
3127 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3137 STACKED_FTEST_CHECK;
3142 if (PL_statcache.st_size == 0)
3151 STACKED_FTEST_CHECK;
3156 #if Off_t_size > IVSIZE
3157 PUSHn(PL_statcache.st_size);
3159 PUSHi(PL_statcache.st_size);
3168 STACKED_FTEST_CHECK;
3173 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3181 STACKED_FTEST_CHECK;
3186 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3194 STACKED_FTEST_CHECK;
3199 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3207 STACKED_FTEST_CHECK;
3212 if (S_ISSOCK(PL_statcache.st_mode))
3221 STACKED_FTEST_CHECK;
3226 if (S_ISCHR(PL_statcache.st_mode))
3235 STACKED_FTEST_CHECK;
3240 if (S_ISBLK(PL_statcache.st_mode))
3249 STACKED_FTEST_CHECK;
3254 if (S_ISREG(PL_statcache.st_mode))
3263 STACKED_FTEST_CHECK;
3268 if (S_ISDIR(PL_statcache.st_mode))
3277 STACKED_FTEST_CHECK;
3282 if (S_ISFIFO(PL_statcache.st_mode))
3289 I32 result = my_lstat();
3293 if (S_ISLNK(PL_statcache.st_mode))
3303 STACKED_FTEST_CHECK;
3308 if (PL_statcache.st_mode & S_ISUID)
3319 STACKED_FTEST_CHECK;
3324 if (PL_statcache.st_mode & S_ISGID)
3335 STACKED_FTEST_CHECK;
3340 if (PL_statcache.st_mode & S_ISVTX)
3353 STACKED_FTEST_CHECK;
3355 if (PL_op->op_flags & OPf_REF)
3357 else if (isGV(TOPs))
3359 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3360 gv = (GV*)SvRV(POPs);
3362 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3364 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3365 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3366 else if (tmpsv && SvOK(tmpsv)) {
3368 char *tmps = SvPV(tmpsv, n_a);
3376 if (PerlLIO_isatty(fd))
3381 #if defined(atarist) /* this will work with atariST. Configure will
3382 make guesses for other systems. */
3383 # define FILE_base(f) ((f)->_base)
3384 # define FILE_ptr(f) ((f)->_ptr)
3385 # define FILE_cnt(f) ((f)->_cnt)
3386 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3396 register STDCHAR *s;
3403 STACKED_FTEST_CHECK;
3405 if (PL_op->op_flags & OPf_REF)
3407 else if (isGV(TOPs))
3409 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3410 gv = (GV*)SvRV(POPs);
3416 if (gv == PL_defgv) {
3418 io = GvIO(PL_statgv);
3421 goto really_filename;
3426 PL_laststatval = -1;
3427 sv_setpv(PL_statname, "");
3428 io = GvIO(PL_statgv);
3430 if (io && IoIFP(io)) {
3431 if (! PerlIO_has_base(IoIFP(io)))
3432 DIE(aTHX_ "-T and -B not implemented on filehandles");
3433 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3434 if (PL_laststatval < 0)
3436 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3437 if (PL_op->op_type == OP_FTTEXT)
3442 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3443 i = PerlIO_getc(IoIFP(io));
3445 (void)PerlIO_ungetc(IoIFP(io),i);
3447 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3449 len = PerlIO_get_bufsiz(IoIFP(io));
3450 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3451 /* sfio can have large buffers - limit to 512 */
3456 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3458 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3460 SETERRNO(EBADF,RMS_IFI);
3468 PL_laststatval = -1;
3469 PL_laststype = OP_STAT;
3470 sv_setpv(PL_statname, SvPV(sv, n_a));
3471 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3472 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3473 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3476 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3477 if (PL_laststatval < 0) {
3478 (void)PerlIO_close(fp);
3481 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3482 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3483 (void)PerlIO_close(fp);
3485 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3486 RETPUSHNO; /* special case NFS directories */
3487 RETPUSHYES; /* null file is anything */
3492 /* now scan s to look for textiness */
3493 /* XXX ASCII dependent code */
3495 #if defined(DOSISH) || defined(USEMYBINMODE)
3496 /* ignore trailing ^Z on short files */
3497 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3501 for (i = 0; i < len; i++, s++) {
3502 if (!*s) { /* null never allowed in text */
3507 else if (!(isPRINT(*s) || isSPACE(*s)))
3510 else if (*s & 128) {
3512 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3515 /* utf8 characters don't count as odd */
3516 if (UTF8_IS_START(*s)) {
3517 int ulen = UTF8SKIP(s);
3518 if (ulen < len - i) {
3520 for (j = 1; j < ulen; j++) {
3521 if (!UTF8_IS_CONTINUATION(s[j]))
3524 --ulen; /* loop does extra increment */
3534 *s != '\n' && *s != '\r' && *s != '\b' &&
3535 *s != '\t' && *s != '\f' && *s != 27)
3540 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3565 if( !tmps || !*tmps ) {
3566 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3567 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3569 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3574 deprecate("chdir('') or chdir(undef) as chdir()");
3575 tmps = SvPV(*svp, n_a);
3579 TAINT_PROPER("chdir");
3584 TAINT_PROPER("chdir");
3585 PUSHi( PerlDir_chdir(tmps) >= 0 );
3587 /* Clear the DEFAULT element of ENV so we'll get the new value
3589 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3597 dSP; dMARK; dTARGET;
3598 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3604 DIE(aTHX_ PL_no_func, "chown");
3614 TAINT_PROPER("chroot");
3615 PUSHi( chroot(tmps) >= 0 );
3618 DIE(aTHX_ PL_no_func, "chroot");
3624 dSP; dMARK; dTARGET;
3626 value = (I32)apply(PL_op->op_type, MARK, SP);
3634 dSP; dMARK; dTARGET;
3636 value = (I32)apply(PL_op->op_type, MARK, SP);
3644 dSP; dMARK; dTARGET;
3646 value = (I32)apply(PL_op->op_type, MARK, SP);
3658 char *tmps2 = POPpx;
3659 char *tmps = SvPV(TOPs, n_a);
3660 TAINT_PROPER("rename");
3662 anum = PerlLIO_rename(tmps, tmps2);
3664 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3665 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3668 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3669 (void)UNLINK(tmps2);
3670 if (!(anum = link(tmps, tmps2)))
3671 anum = UNLINK(tmps);
3684 char *tmps2 = POPpx;
3685 char *tmps = SvPV(TOPs, n_a);
3686 TAINT_PROPER("link");
3687 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3690 DIE(aTHX_ PL_no_func, "link");
3699 char *tmps2 = POPpx;
3700 char *tmps = SvPV(TOPs, n_a);
3701 TAINT_PROPER("symlink");
3702 SETi( symlink(tmps, tmps2) >= 0 );
3705 DIE(aTHX_ PL_no_func, "symlink");
3715 char buf[MAXPATHLEN];
3719 #ifndef INCOMPLETE_TAINTS
3723 len = readlink(tmps, buf, sizeof(buf) - 1);
3731 RETSETUNDEF; /* just pretend it's a normal file */
3735 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3737 S_dooneliner(pTHX_ char *cmd, char *filename)
3739 char *save_filename = filename;
3745 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3746 strcpy(cmdline, cmd);
3747 strcat(cmdline, " ");
3748 for (s = cmdline + strlen(cmdline); *filename; ) {
3753 myfp = PerlProc_popen(cmdline, "r");
3757 SV *tmpsv = sv_newmortal();
3758 /* Need to save/restore 'PL_rs' ?? */
3759 s = sv_gets(tmpsv, myfp, 0);
3760 (void)PerlProc_pclose(myfp);
3764 #ifdef HAS_SYS_ERRLIST
3769 /* you don't see this */
3771 #ifdef HAS_SYS_ERRLIST
3779 if (instr(s, errmsg)) {
3786 #define EACCES EPERM
3788 if (instr(s, "cannot make"))
3789 SETERRNO(EEXIST,RMS_FEX);
3790 else if (instr(s, "existing file"))
3791 SETERRNO(EEXIST,RMS_FEX);
3792 else if (instr(s, "ile exists"))
3793 SETERRNO(EEXIST,RMS_FEX);
3794 else if (instr(s, "non-exist"))
3795 SETERRNO(ENOENT,RMS_FNF);
3796 else if (instr(s, "does not exist"))
3797 SETERRNO(ENOENT,RMS_FNF);
3798 else if (instr(s, "not empty"))
3799 SETERRNO(EBUSY,SS_DEVOFFLINE);
3800 else if (instr(s, "cannot access"))
3801 SETERRNO(EACCES,RMS_PRV);
3803 SETERRNO(EPERM,RMS_PRV);
3806 else { /* some mkdirs return no failure indication */
3807 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3808 if (PL_op->op_type == OP_RMDIR)
3813 SETERRNO(EACCES,RMS_PRV); /* a guess */
3822 /* This macro removes trailing slashes from a directory name.
3823 * Different operating and file systems take differently to
3824 * trailing slashes. According to POSIX 1003.1 1996 Edition
3825 * any number of trailing slashes should be allowed.
3826 * Thusly we snip them away so that even non-conforming
3827 * systems are happy.
3828 * We should probably do this "filtering" for all
3829 * the functions that expect (potentially) directory names:
3830 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3831 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3833 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3834 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3837 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3838 (tmps) = savepvn((tmps), (len)); \
3858 TRIMSLASHES(tmps,len,copy);
3860 TAINT_PROPER("mkdir");
3862 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3864 SETi( dooneliner("mkdir", tmps) );
3865 oldumask = PerlLIO_umask(0);
3866 PerlLIO_umask(oldumask);
3867 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3881 TRIMSLASHES(tmps,len,copy);
3882 TAINT_PROPER("rmdir");
3884 SETi( PerlDir_rmdir(tmps) >= 0 );
3886 SETi( dooneliner("rmdir", tmps) );
3893 /* Directory calls. */
3897 #if defined(Direntry_t) && defined(HAS_READDIR)
3900 char *dirname = POPpx;
3902 register IO *io = GvIOn(gv);
3908 PerlDir_close(IoDIRP(io));
3909 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3915 SETERRNO(EBADF,RMS_DIR);
3918 DIE(aTHX_ PL_no_dir_func, "opendir");
3924 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3925 DIE(aTHX_ PL_no_dir_func, "readdir");
3927 #if !defined(I_DIRENT) && !defined(VMS)
3928 Direntry_t *readdir (DIR *);
3934 GV *gv = (GV *)POPs;
3935 register Direntry_t *dp;
3936 register IO *io = GvIOn(gv);
3938 if (!io || !IoDIRP(io))
3942 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3946 sv = newSVpvn(dp->d_name, dp->d_namlen);
3948 sv = newSVpv(dp->d_name, 0);
3950 #ifndef INCOMPLETE_TAINTS
3951 if (!(IoFLAGS(io) & IOf_UNTAINT))
3954 XPUSHs(sv_2mortal(sv));
3956 while (gimme == G_ARRAY);
3958 if (!dp && gimme != G_ARRAY)
3965 SETERRNO(EBADF,RMS_ISI);
3966 if (GIMME == G_ARRAY)
3975 #if defined(HAS_TELLDIR) || defined(telldir)
3977 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3978 /* XXX netbsd still seemed to.
3979 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3980 --JHI 1999-Feb-02 */
3981 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3982 long telldir (DIR *);
3985 register IO *io = GvIOn(gv);
3987 if (!io || !IoDIRP(io))
3990 PUSHi( PerlDir_tell(IoDIRP(io)) );
3994 SETERRNO(EBADF,RMS_ISI);
3997 DIE(aTHX_ PL_no_dir_func, "telldir");
4003 #if defined(HAS_SEEKDIR) || defined(seekdir)
4007 register IO *io = GvIOn(gv);
4009 if (!io || !IoDIRP(io))
4012 (void)PerlDir_seek(IoDIRP(io), along);
4017 SETERRNO(EBADF,RMS_ISI);
4020 DIE(aTHX_ PL_no_dir_func, "seekdir");
4026 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4029 register IO *io = GvIOn(gv);
4031 if (!io || !IoDIRP(io))
4034 (void)PerlDir_rewind(IoDIRP(io));
4038 SETERRNO(EBADF,RMS_ISI);
4041 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4047 #if defined(Direntry_t) && defined(HAS_READDIR)
4050 register IO *io = GvIOn(gv);
4052 if (!io || !IoDIRP(io))
4055 #ifdef VOID_CLOSEDIR
4056 PerlDir_close(IoDIRP(io));
4058 if (PerlDir_close(IoDIRP(io)) < 0) {
4059 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4068 SETERRNO(EBADF,RMS_IFI);
4071 DIE(aTHX_ PL_no_dir_func, "closedir");
4075 /* Process control. */
4085 PERL_FLUSHALL_FOR_CHILD;
4086 childpid = PerlProc_fork();
4091 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4092 SvREADONLY_off(GvSV(tmpgv));
4093 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4094 SvREADONLY_on(GvSV(tmpgv));
4096 #ifdef THREADS_HAVE_PIDS
4097 PL_ppid = (IV)getppid();
4099 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4104 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4109 PERL_FLUSHALL_FOR_CHILD;
4110 childpid = PerlProc_fork();
4116 DIE(aTHX_ PL_no_func, "fork");
4123 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4128 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4129 childpid = wait4pid(-1, &argflags, 0);
4131 while ((childpid = wait4pid(-1, &argflags, 0)) == -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((childpid && childpid != -1) ? argflags : -1);
4140 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4145 DIE(aTHX_ PL_no_func, "wait");
4151 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4160 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4161 result = wait4pid(pid, &argflags, optype);
4163 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4168 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4169 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4170 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4172 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4177 DIE(aTHX_ PL_no_func, "waitpid");
4183 dSP; dMARK; dORIGMARK; dTARGET;
4191 while (++MARK <= SP) {
4192 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4197 TAINT_PROPER("system");
4199 PERL_FLUSHALL_FOR_CHILD;
4200 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4205 if (PerlProc_pipe(pp) >= 0)
4207 while ((childpid = PerlProc_fork()) == -1) {
4208 if (errno != EAGAIN) {
4213 PerlLIO_close(pp[0]);
4214 PerlLIO_close(pp[1]);
4221 Sigsave_t ihand,qhand; /* place to save signals during system() */
4225 PerlLIO_close(pp[1]);
4227 rsignal_save(SIGINT, SIG_IGN, &ihand);
4228 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4231 result = wait4pid(childpid, &status, 0);
4232 } while (result == -1 && errno == EINTR);
4234 (void)rsignal_restore(SIGINT, &ihand);
4235 (void)rsignal_restore(SIGQUIT, &qhand);
4237 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4238 do_execfree(); /* free any memory child malloced on fork */
4244 while (n < sizeof(int)) {
4245 n1 = PerlLIO_read(pp[0],
4246 (void*)(((char*)&errkid)+n),
4252 PerlLIO_close(pp[0]);
4253 if (n) { /* Error */
4254 if (n != sizeof(int))
4255 DIE(aTHX_ "panic: kid popen errno read");
4256 errno = errkid; /* Propagate errno from kid */
4257 STATUS_CURRENT = -1;
4260 PUSHi(STATUS_CURRENT);
4264 PerlLIO_close(pp[0]);
4265 #if defined(HAS_FCNTL) && defined(F_SETFD)
4266 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4269 if (PL_op->op_flags & OPf_STACKED) {
4270 SV *really = *++MARK;
4271 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4273 else if (SP - MARK != 1)
4274 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4276 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4280 #else /* ! FORK or VMS or OS/2 */
4283 if (PL_op->op_flags & OPf_STACKED) {
4284 SV *really = *++MARK;
4285 # if defined(WIN32) || defined(OS2)
4286 value = (I32)do_aspawn(really, MARK, SP);
4288 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4291 else if (SP - MARK != 1) {
4292 # if defined(WIN32) || defined(OS2)
4293 value = (I32)do_aspawn(Nullsv, MARK, SP);
4295 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4299 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4301 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4303 STATUS_NATIVE_SET(value);
4306 PUSHi(result ? value : STATUS_CURRENT);
4307 #endif /* !FORK or VMS */
4313 dSP; dMARK; dORIGMARK; dTARGET;
4319 while (++MARK <= SP) {
4320 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4325 TAINT_PROPER("exec");
4327 PERL_FLUSHALL_FOR_CHILD;
4328 if (PL_op->op_flags & OPf_STACKED) {
4329 SV *really = *++MARK;
4330 value = (I32)do_aexec(really, MARK, SP);
4332 else if (SP - MARK != 1)
4334 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4338 (void ) do_aspawn(Nullsv, MARK, SP);
4342 value = (I32)do_aexec(Nullsv, MARK, SP);
4347 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4350 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4353 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4366 dSP; dMARK; dTARGET;
4368 value = (I32)apply(PL_op->op_type, MARK, SP);
4373 DIE(aTHX_ PL_no_func, "kill");
4381 # ifdef THREADS_HAVE_PIDS
4384 XPUSHi( getppid() );
4388 DIE(aTHX_ PL_no_func, "getppid");
4404 pgrp = (I32)BSD_GETPGRP(pid);
4406 if (pid != 0 && pid != PerlProc_getpid())
4407 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4413 DIE(aTHX_ PL_no_func, "getpgrp()");
4432 TAINT_PROPER("setpgrp");
4434 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4436 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4437 || (pid != 0 && pid != PerlProc_getpid()))
4439 DIE(aTHX_ "setpgrp can't take arguments");
4441 SETi( setpgrp() >= 0 );
4442 #endif /* USE_BSDPGRP */
4445 DIE(aTHX_ PL_no_func, "setpgrp()");
4451 #ifdef HAS_GETPRIORITY
4455 SETi( getpriority(which, who) );
4458 DIE(aTHX_ PL_no_func, "getpriority()");
4464 #ifdef HAS_SETPRIORITY
4469 TAINT_PROPER("setpriority");
4470 SETi( setpriority(which, who, niceval) >= 0 );
4473 DIE(aTHX_ PL_no_func, "setpriority()");
4483 XPUSHn( time(Null(Time_t*)) );
4485 XPUSHi( time(Null(Time_t*)) );
4496 (void)PerlProc_times(&PL_timesbuf);
4498 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4499 /* struct tms, though same data */
4503 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4504 if (GIMME == G_ARRAY) {
4505 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4506 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4507 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4513 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4515 if (GIMME == G_ARRAY) {
4516 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4517 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4518 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4522 DIE(aTHX_ "times not implemented");
4524 #endif /* HAS_TIMES */
4537 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4538 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4539 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4545 when = (Time_t)SvNVx(POPs);
4547 when = (Time_t)SvIVx(POPs);
4550 if (PL_op->op_type == OP_LOCALTIME)
4551 tmbuf = localtime(&when);
4553 tmbuf = gmtime(&when);
4555 if (GIMME != G_ARRAY) {
4561 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4562 dayname[tmbuf->tm_wday],
4563 monname[tmbuf->tm_mon],
4568 tmbuf->tm_year + 1900);
4569 PUSHs(sv_2mortal(tsv));
4574 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4575 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4576 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4577 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4578 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4579 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4580 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4581 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4582 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4593 anum = alarm((unsigned int)anum);
4600 DIE(aTHX_ PL_no_func, "alarm");
4611 (void)time(&lasttime);
4616 PerlProc_sleep((unsigned int)duration);
4619 XPUSHi(when - lasttime);
4623 /* Shared memory. */
4637 return pp_shmwrite();
4642 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4643 dSP; dMARK; dTARGET;
4644 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4653 /* Message passing. */
4667 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4668 dSP; dMARK; dTARGET;
4669 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4680 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4681 dSP; dMARK; dTARGET;
4682 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4695 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4696 dSP; dMARK; dTARGET;
4697 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4704 DIE(aTHX_ "System V IPC is not implemented on this machine");
4710 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4711 dSP; dMARK; dTARGET;
4712 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4720 PUSHp(zero_but_true, ZBTLEN);
4730 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4731 dSP; dMARK; dTARGET;
4732 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4741 /* Get system info. */
4745 #ifdef HAS_GETHOSTBYNAME
4746 return pp_ghostent();
4748 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4754 #ifdef HAS_GETHOSTBYADDR
4755 return pp_ghostent();
4757 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4763 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4765 I32 which = PL_op->op_type;
4766 register char **elem;
4768 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4769 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4770 struct hostent *gethostbyname(Netdb_name_t);
4771 struct hostent *gethostent(void);
4773 struct hostent *hent;
4778 if (which == OP_GHBYNAME) {
4779 #ifdef HAS_GETHOSTBYNAME
4780 char* name = POPpbytex;
4781 hent = PerlSock_gethostbyname(name);
4783 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4786 else if (which == OP_GHBYADDR) {
4787 #ifdef HAS_GETHOSTBYADDR
4788 int addrtype = POPi;
4791 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4793 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4795 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4799 #ifdef HAS_GETHOSTENT
4800 hent = PerlSock_gethostent();
4802 DIE(aTHX_ PL_no_sock_func, "gethostent");
4805 #ifdef HOST_NOT_FOUND
4807 #ifdef USE_REENTRANT_API
4808 # ifdef USE_GETHOSTENT_ERRNO
4809 h_errno = PL_reentrant_buffer->_gethostent_errno;
4812 STATUS_NATIVE_SET(h_errno);
4816 if (GIMME != G_ARRAY) {
4817 PUSHs(sv = sv_newmortal());
4819 if (which == OP_GHBYNAME) {
4821 sv_setpvn(sv, hent->h_addr, hent->h_length);
4824 sv_setpv(sv, (char*)hent->h_name);
4830 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4831 sv_setpv(sv, (char*)hent->h_name);
4832 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4833 for (elem = hent->h_aliases; elem && *elem; elem++) {
4834 sv_catpv(sv, *elem);
4836 sv_catpvn(sv, " ", 1);
4838 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4839 sv_setiv(sv, (IV)hent->h_addrtype);
4840 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4841 len = hent->h_length;
4842 sv_setiv(sv, (IV)len);
4844 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4845 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4846 sv_setpvn(sv, *elem, len);
4849 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4851 sv_setpvn(sv, hent->h_addr, len);
4856 DIE(aTHX_ PL_no_sock_func, "gethostent");
4862 #ifdef HAS_GETNETBYNAME
4863 return pp_gnetent();
4865 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4871 #ifdef HAS_GETNETBYADDR
4872 return pp_gnetent();
4874 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4880 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4882 I32 which = PL_op->op_type;
4883 register char **elem;
4885 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4886 struct netent *getnetbyaddr(Netdb_net_t, int);
4887 struct netent *getnetbyname(Netdb_name_t);
4888 struct netent *getnetent(void);
4890 struct netent *nent;
4893 if (which == OP_GNBYNAME){
4894 #ifdef HAS_GETNETBYNAME
4895 char *name = POPpbytex;
4896 nent = PerlSock_getnetbyname(name);
4898 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4901 else if (which == OP_GNBYADDR) {
4902 #ifdef HAS_GETNETBYADDR
4903 int addrtype = POPi;
4904 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4905 nent = PerlSock_getnetbyaddr(addr, addrtype);
4907 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4911 #ifdef HAS_GETNETENT
4912 nent = PerlSock_getnetent();
4914 DIE(aTHX_ PL_no_sock_func, "getnetent");
4917 #ifdef HOST_NOT_FOUND
4919 #ifdef USE_REENTRANT_API
4920 # ifdef USE_GETNETENT_ERRNO
4921 h_errno = PL_reentrant_buffer->_getnetent_errno;
4924 STATUS_NATIVE_SET(h_errno);
4929 if (GIMME != G_ARRAY) {
4930 PUSHs(sv = sv_newmortal());
4932 if (which == OP_GNBYNAME)
4933 sv_setiv(sv, (IV)nent->n_net);
4935 sv_setpv(sv, nent->n_name);
4941 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4942 sv_setpv(sv, nent->n_name);
4943 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4944 for (elem = nent->n_aliases; elem && *elem; elem++) {
4945 sv_catpv(sv, *elem);
4947 sv_catpvn(sv, " ", 1);
4949 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4950 sv_setiv(sv, (IV)nent->n_addrtype);
4951 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4952 sv_setiv(sv, (IV)nent->n_net);
4957 DIE(aTHX_ PL_no_sock_func, "getnetent");
4963 #ifdef HAS_GETPROTOBYNAME
4964 return pp_gprotoent();
4966 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4972 #ifdef HAS_GETPROTOBYNUMBER
4973 return pp_gprotoent();
4975 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4981 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4983 I32 which = PL_op->op_type;
4984 register char **elem;
4986 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4987 struct protoent *getprotobyname(Netdb_name_t);
4988 struct protoent *getprotobynumber(int);
4989 struct protoent *getprotoent(void);
4991 struct protoent *pent;
4994 if (which == OP_GPBYNAME) {
4995 #ifdef HAS_GETPROTOBYNAME
4996 char* name = POPpbytex;
4997 pent = PerlSock_getprotobyname(name);
4999 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5002 else if (which == OP_GPBYNUMBER) {
5003 #ifdef HAS_GETPROTOBYNUMBER
5005 pent = PerlSock_getprotobynumber(number);
5007 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5011 #ifdef HAS_GETPROTOENT
5012 pent = PerlSock_getprotoent();
5014 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5018 if (GIMME != G_ARRAY) {
5019 PUSHs(sv = sv_newmortal());
5021 if (which == OP_GPBYNAME)
5022 sv_setiv(sv, (IV)pent->p_proto);
5024 sv_setpv(sv, pent->p_name);
5030 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5031 sv_setpv(sv, pent->p_name);
5032 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5033 for (elem = pent->p_aliases; elem && *elem; elem++) {
5034 sv_catpv(sv, *elem);
5036 sv_catpvn(sv, " ", 1);
5038 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5039 sv_setiv(sv, (IV)pent->p_proto);
5044 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5050 #ifdef HAS_GETSERVBYNAME
5051 return pp_gservent();
5053 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5059 #ifdef HAS_GETSERVBYPORT
5060 return pp_gservent();
5062 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5068 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5070 I32 which = PL_op->op_type;
5071 register char **elem;
5073 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5074 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5075 struct servent *getservbyport(int, Netdb_name_t);
5076 struct servent *getservent(void);
5078 struct servent *sent;
5081 if (which == OP_GSBYNAME) {
5082 #ifdef HAS_GETSERVBYNAME
5083 char *proto = POPpbytex;
5084 char *name = POPpbytex;
5086 if (proto && !*proto)
5089 sent = PerlSock_getservbyname(name, proto);
5091 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5094 else if (which == OP_GSBYPORT) {
5095 #ifdef HAS_GETSERVBYPORT
5096 char *proto = POPpbytex;
5097 unsigned short port = (unsigned short)POPu;
5099 if (proto && !*proto)
5103 port = PerlSock_htons(port);
5105 sent = PerlSock_getservbyport(port, proto);
5107 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5111 #ifdef HAS_GETSERVENT
5112 sent = PerlSock_getservent();
5114 DIE(aTHX_ PL_no_sock_func, "getservent");
5118 if (GIMME != G_ARRAY) {
5119 PUSHs(sv = sv_newmortal());
5121 if (which == OP_GSBYNAME) {
5123 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5125 sv_setiv(sv, (IV)(sent->s_port));
5129 sv_setpv(sv, sent->s_name);
5135 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5136 sv_setpv(sv, sent->s_name);
5137 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5138 for (elem = sent->s_aliases; elem && *elem; elem++) {
5139 sv_catpv(sv, *elem);
5141 sv_catpvn(sv, " ", 1);
5143 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5145 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5147 sv_setiv(sv, (IV)(sent->s_port));
5149 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5150 sv_setpv(sv, sent->s_proto);
5155 DIE(aTHX_ PL_no_sock_func, "getservent");
5161 #ifdef HAS_SETHOSTENT
5163 PerlSock_sethostent(TOPi);
5166 DIE(aTHX_ PL_no_sock_func, "sethostent");
5172 #ifdef HAS_SETNETENT
5174 PerlSock_setnetent(TOPi);
5177 DIE(aTHX_ PL_no_sock_func, "setnetent");
5183 #ifdef HAS_SETPROTOENT
5185 PerlSock_setprotoent(TOPi);
5188 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5194 #ifdef HAS_SETSERVENT
5196 PerlSock_setservent(TOPi);
5199 DIE(aTHX_ PL_no_sock_func, "setservent");
5205 #ifdef HAS_ENDHOSTENT
5207 PerlSock_endhostent();
5211 DIE(aTHX_ PL_no_sock_func, "endhostent");
5217 #ifdef HAS_ENDNETENT
5219 PerlSock_endnetent();
5223 DIE(aTHX_ PL_no_sock_func, "endnetent");
5229 #ifdef HAS_ENDPROTOENT
5231 PerlSock_endprotoent();
5235 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5241 #ifdef HAS_ENDSERVENT
5243 PerlSock_endservent();
5247 DIE(aTHX_ PL_no_sock_func, "endservent");
5256 DIE(aTHX_ PL_no_func, "getpwnam");
5265 DIE(aTHX_ PL_no_func, "getpwuid");
5273 I32 which = PL_op->op_type;
5276 struct passwd *pwent = NULL;
5278 * We currently support only the SysV getsp* shadow password interface.
5279 * The interface is declared in <shadow.h> and often one needs to link
5280 * with -lsecurity or some such.
5281 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5284 * AIX getpwnam() is clever enough to return the encrypted password
5285 * only if the caller (euid?) is root.
5287 * There are at least three other shadow password APIs. Many platforms
5288 * seem to contain more than one interface for accessing the shadow
5289 * password databases, possibly for compatibility reasons.
5290 * The getsp*() is by far he simplest one, the other two interfaces
5291 * are much more complicated, but also very similar to each other.
5296 * struct pr_passwd *getprpw*();
5297 * The password is in
5298 * char getprpw*(...).ufld.fd_encrypt[]
5299 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5304 * struct es_passwd *getespw*();
5305 * The password is in
5306 * char *(getespw*(...).ufld.fd_encrypt)
5307 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5310 * struct userpw *getuserpw();
5311 * The password is in
5312 * char *(getuserpw(...)).spw_upw_passwd
5313 * (but the de facto standard getpwnam() should work okay)
5315 * Mention I_PROT here so that Configure probes for it.
5317 * In HP-UX for getprpw*() the manual page claims that one should include
5318 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5319 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5320 * and pp_sys.c already includes <shadow.h> if there is such.
5322 * Note that <sys/security.h> is already probed for, but currently
5323 * it is only included in special cases.
5325 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5326 * be preferred interface, even though also the getprpw*() interface
5327 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5328 * One also needs to call set_auth_parameters() in main() before
5329 * doing anything else, whether one is using getespw*() or getprpw*().
5331 * Note that accessing the shadow databases can be magnitudes
5332 * slower than accessing the standard databases.
5337 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5338 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5339 * the pw_comment is left uninitialized. */
5340 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5346 char* name = POPpbytex;
5347 pwent = getpwnam(name);
5353 pwent = getpwuid(uid);
5357 # ifdef HAS_GETPWENT
5359 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5360 if (pwent) pwent = getpwnam(pwent->pw_name);
5363 DIE(aTHX_ PL_no_func, "getpwent");
5369 if (GIMME != G_ARRAY) {
5370 PUSHs(sv = sv_newmortal());
5372 if (which == OP_GPWNAM)
5373 # if Uid_t_sign <= 0
5374 sv_setiv(sv, (IV)pwent->pw_uid);
5376 sv_setuv(sv, (UV)pwent->pw_uid);
5379 sv_setpv(sv, pwent->pw_name);
5385 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5386 sv_setpv(sv, pwent->pw_name);
5388 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5390 /* If we have getspnam(), we try to dig up the shadow
5391 * password. If we are underprivileged, the shadow
5392 * interface will set the errno to EACCES or similar,
5393 * and return a null pointer. If this happens, we will
5394 * use the dummy password (usually "*" or "x") from the
5395 * standard password database.
5397 * In theory we could skip the shadow call completely
5398 * if euid != 0 but in practice we cannot know which
5399 * security measures are guarding the shadow databases
5400 * on a random platform.
5402 * Resist the urge to use additional shadow interfaces.
5403 * Divert the urge to writing an extension instead.
5406 /* Some AIX setups falsely(?) detect some getspnam(), which
5407 * has a different API than the Solaris/IRIX one. */
5408 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5410 struct spwd *spwent;
5411 int saverrno; /* Save and restore errno so that
5412 * underprivileged attempts seem
5413 * to have never made the unsccessful
5414 * attempt to retrieve the shadow password. */
5417 spwent = getspnam(pwent->pw_name);
5419 if (spwent && spwent->sp_pwdp)
5420 sv_setpv(sv, spwent->sp_pwdp);
5424 if (!SvPOK(sv)) /* Use the standard password, then. */
5425 sv_setpv(sv, pwent->pw_passwd);
5428 # ifndef INCOMPLETE_TAINTS
5429 /* passwd is tainted because user himself can diddle with it.
5430 * admittedly not much and in a very limited way, but nevertheless. */
5434 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5435 # if Uid_t_sign <= 0
5436 sv_setiv(sv, (IV)pwent->pw_uid);
5438 sv_setuv(sv, (UV)pwent->pw_uid);
5441 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5442 # if Uid_t_sign <= 0
5443 sv_setiv(sv, (IV)pwent->pw_gid);
5445 sv_setuv(sv, (UV)pwent->pw_gid);
5447 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5448 * because of the poor interface of the Perl getpw*(),
5449 * not because there's some standard/convention saying so.
5450 * A better interface would have been to return a hash,
5451 * but we are accursed by our history, alas. --jhi. */
5452 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5454 sv_setiv(sv, (IV)pwent->pw_change);
5457 sv_setiv(sv, (IV)pwent->pw_quota);
5460 sv_setpv(sv, pwent->pw_age);
5465 /* pw_class and pw_comment are mutually exclusive--.
5466 * see the above note for pw_change, pw_quota, and pw_age. */
5467 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5469 sv_setpv(sv, pwent->pw_class);
5472 sv_setpv(sv, pwent->pw_comment);
5476 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5478 sv_setpv(sv, pwent->pw_gecos);
5480 # ifndef INCOMPLETE_TAINTS
5481 /* pw_gecos is tainted because user himself can diddle with it. */
5485 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5486 sv_setpv(sv, pwent->pw_dir);
5488 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5489 sv_setpv(sv, pwent->pw_shell);
5490 # ifndef INCOMPLETE_TAINTS
5491 /* pw_shell is tainted because user himself can diddle with it. */
5496 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5497 sv_setiv(sv, (IV)pwent->pw_expire);
5502 DIE(aTHX_ PL_no_func, "getpwent");
5508 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5513 DIE(aTHX_ PL_no_func, "setpwent");
5519 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5524 DIE(aTHX_ PL_no_func, "endpwent");
5533 DIE(aTHX_ PL_no_func, "getgrnam");
5542 DIE(aTHX_ PL_no_func, "getgrgid");
5550 I32 which = PL_op->op_type;
5551 register char **elem;
5553 struct group *grent;
5556 if (which == OP_GGRNAM) {
5557 char* name = POPpbytex;
5558 grent = (struct group *)getgrnam(name);
5560 else if (which == OP_GGRGID) {
5562 grent = (struct group *)getgrgid(gid);
5566 grent = (struct group *)getgrent();
5568 DIE(aTHX_ PL_no_func, "getgrent");
5572 if (GIMME != G_ARRAY) {
5573 PUSHs(sv = sv_newmortal());
5575 if (which == OP_GGRNAM)
5576 sv_setiv(sv, (IV)grent->gr_gid);
5578 sv_setpv(sv, grent->gr_name);
5584 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5585 sv_setpv(sv, grent->gr_name);
5587 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5589 sv_setpv(sv, grent->gr_passwd);
5592 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5593 sv_setiv(sv, (IV)grent->gr_gid);
5595 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5596 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5597 /* In UNICOS/mk (_CRAYMPP) the multithreading
5598 * versions (getgrnam_r, getgrgid_r)
5599 * seem to return an illegal pointer
5600 * as the group members list, gr_mem.
5601 * getgrent() doesn't even have a _r version
5602 * but the gr_mem is poisonous anyway.
5603 * So yes, you cannot get the list of group
5604 * members if building multithreaded in UNICOS/mk. */
5605 for (elem = grent->gr_mem; elem && *elem; elem++) {
5606 sv_catpv(sv, *elem);
5608 sv_catpvn(sv, " ", 1);
5615 DIE(aTHX_ PL_no_func, "getgrent");
5621 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5626 DIE(aTHX_ PL_no_func, "setgrent");
5632 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5637 DIE(aTHX_ PL_no_func, "endgrent");
5647 if (!(tmps = PerlProc_getlogin()))
5649 PUSHp(tmps, strlen(tmps));
5652 DIE(aTHX_ PL_no_func, "getlogin");
5656 /* Miscellaneous. */
5661 dSP; dMARK; dORIGMARK; dTARGET;
5662 register I32 items = SP - MARK;
5663 unsigned long a[20];
5669 while (++MARK <= SP) {
5670 if (SvTAINTED(*MARK)) {
5676 TAINT_PROPER("syscall");
5679 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5680 * or where sizeof(long) != sizeof(char*). But such machines will
5681 * not likely have syscall implemented either, so who cares?
5683 while (++MARK <= SP) {
5684 if (SvNIOK(*MARK) || !i)
5685 a[i++] = SvIV(*MARK);
5686 else if (*MARK == &PL_sv_undef)
5689 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5695 DIE(aTHX_ "Too many args to syscall");
5697 DIE(aTHX_ "Too few args to syscall");
5699 retval = syscall(a[0]);
5702 retval = syscall(a[0],a[1]);
5705 retval = syscall(a[0],a[1],a[2]);
5708 retval = syscall(a[0],a[1],a[2],a[3]);
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5714 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5717 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5720 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5724 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5727 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5730 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5734 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5738 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5742 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5743 a[10],a[11],a[12],a[13]);
5745 #endif /* atarist */
5751 DIE(aTHX_ PL_no_func, "syscall");
5755 #ifdef FCNTL_EMULATE_FLOCK
5757 /* XXX Emulate flock() with fcntl().
5758 What's really needed is a good file locking module.
5762 fcntl_emulate_flock(int fd, int operation)
5766 switch (operation & ~LOCK_NB) {
5768 flock.l_type = F_RDLCK;
5771 flock.l_type = F_WRLCK;
5774 flock.l_type = F_UNLCK;
5780 flock.l_whence = SEEK_SET;
5781 flock.l_start = flock.l_len = (Off_t)0;
5783 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5786 #endif /* FCNTL_EMULATE_FLOCK */
5788 #ifdef LOCKF_EMULATE_FLOCK
5790 /* XXX Emulate flock() with lockf(). This is just to increase
5791 portability of scripts. The calls are not completely
5792 interchangeable. What's really needed is a good file
5796 /* The lockf() constants might have been defined in <unistd.h>.
5797 Unfortunately, <unistd.h> causes troubles on some mixed
5798 (BSD/POSIX) systems, such as SunOS 4.1.3.
5800 Further, the lockf() constants aren't POSIX, so they might not be
5801 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5802 just stick in the SVID values and be done with it. Sigh.
5806 # define F_ULOCK 0 /* Unlock a previously locked region */
5809 # define F_LOCK 1 /* Lock a region for exclusive use */
5812 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5815 # define F_TEST 3 /* Test a region for other processes locks */
5819 lockf_emulate_flock(int fd, int operation)
5825 /* flock locks entire file so for lockf we need to do the same */
5827 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5828 if (pos > 0) /* is seekable and needs to be repositioned */
5829 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5830 pos = -1; /* seek failed, so don't seek back afterwards */
5833 switch (operation) {
5835 /* LOCK_SH - get a shared lock */
5837 /* LOCK_EX - get an exclusive lock */
5839 i = lockf (fd, F_LOCK, 0);
5842 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5843 case LOCK_SH|LOCK_NB:
5844 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5845 case LOCK_EX|LOCK_NB:
5846 i = lockf (fd, F_TLOCK, 0);
5848 if ((errno == EAGAIN) || (errno == EACCES))
5849 errno = EWOULDBLOCK;
5852 /* LOCK_UN - unlock (non-blocking is a no-op) */
5854 case LOCK_UN|LOCK_NB:
5855 i = lockf (fd, F_ULOCK, 0);
5858 /* Default - can't decipher operation */
5865 if (pos > 0) /* need to restore position of the handle */
5866 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5871 #endif /* LOCKF_EMULATE_FLOCK */