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)
312 Perl_croak(aTHX_ "switching effective uid is not implemented");
324 const I32 gimme = GIMME_V;
325 const char *mode = "r";
328 if (PL_op->op_private & OPpOPEN_IN_RAW)
330 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
332 fp = PerlProc_popen(tmps, (char *)mode);
334 const char *type = NULL;
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) {
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)
364 if (sv_gets(sv, fp, 0) == Nullch) {
368 XPUSHs(sv_2mortal(sv));
369 if (SvLEN(sv) - SvCUR(sv) > 20) {
370 SvPV_shrink_to_cur(sv);
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)
391 tryAMAGICunTARGET(iter, -1);
393 /* Note that we only ever get here if File::Glob fails to load
394 * without at the same time croaking, for some reason, or if
395 * perl was built with PERL_EXTERNAL_GLOB */
402 * The external globbing program may use things we can't control,
403 * so for security reasons we must assume the worst.
406 taint_proper(PL_no_security, "glob");
410 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
411 PL_last_in_gv = (GV*)*PL_stack_sp--;
413 SAVESPTR(PL_rs); /* This is not permanent, either. */
414 PL_rs = sv_2mortal(newSVpvn("\000", 1));
417 *SvPVX(PL_rs) = '\n';
421 result = do_readline();
428 PL_last_in_gv = cGVOP_gv;
429 return do_readline();
438 if (SP - MARK != 1) {
440 do_join(TARG, &PL_sv_no, MARK, SP);
447 tmps = SvPV(tmpsv, len);
448 if ((!tmps || !len) && PL_errgv) {
450 (void)SvUPGRADE(error, SVt_PV);
451 if (SvPOK(error) && SvCUR(error))
452 sv_catpv(error, "\t...caught");
454 tmps = SvPV(tmpsv, len);
457 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
459 Perl_warn(aTHX_ "%"SVf, tmpsv);
471 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
473 if (SP - MARK != 1) {
475 do_join(TARG, &PL_sv_no, MARK, SP);
477 tmps = SvPV(tmpsv, len);
483 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
487 (void)SvUPGRADE(error, SVt_PV);
488 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
490 SvSetSV(error,tmpsv);
491 else if (sv_isobject(error)) {
492 HV *stash = SvSTASH(SvRV(error));
493 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
495 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
496 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
503 call_sv((SV*)GvCV(gv),
504 G_SCALAR|G_EVAL|G_KEEPERR);
505 sv_setsv(error,*PL_stack_sp--);
511 if (SvPOK(error) && SvCUR(error))
512 sv_catpv(error, "\t...propagated");
514 tmps = SvPV(tmpsv, len);
518 tmpsv = sv_2mortal(newSVpvn("Died", 4));
520 DIE(aTHX_ "%"SVf, tmpsv);
540 DIE(aTHX_ PL_no_usym, "filehandle");
541 if ((io = GvIOp(gv)))
542 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
544 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
545 /* Method's args are same as ours ... */
546 /* ... except handle is replaced by the object */
547 *MARK-- = SvTIED_obj((SV*)io, mg);
551 call_method("OPEN", G_SCALAR);
564 tmps = SvPV(sv, len);
565 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
568 PUSHi( (I32)PL_forkprocess );
569 else if (PL_forkprocess == 0) /* we are a new child */
588 if (gv && (io = GvIO(gv))
589 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
592 XPUSHs(SvTIED_obj((SV*)io, mg));
595 call_method("CLOSE", G_SCALAR);
601 PUSHs(boolSV(do_close(gv, TRUE)));
621 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
622 DIE(aTHX_ PL_no_usym, "filehandle");
627 do_close(rgv, FALSE);
629 do_close(wgv, FALSE);
631 if (PerlProc_pipe(fd) < 0)
634 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
635 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
636 IoOFP(rstio) = IoIFP(rstio);
637 IoIFP(wstio) = IoOFP(wstio);
638 IoTYPE(rstio) = IoTYPE_RDONLY;
639 IoTYPE(wstio) = IoTYPE_WRONLY;
641 if (!IoIFP(rstio) || !IoOFP(wstio)) {
642 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
643 else PerlLIO_close(fd[0]);
644 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
645 else PerlLIO_close(fd[1]);
648 #if defined(HAS_FCNTL) && defined(F_SETFD)
649 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
650 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
657 DIE(aTHX_ PL_no_func, "pipe");
673 if (gv && (io = GvIO(gv))
674 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
677 XPUSHs(SvTIED_obj((SV*)io, mg));
680 call_method("FILENO", G_SCALAR);
686 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
687 /* Can't do this because people seem to do things like
688 defined(fileno($foo)) to check whether $foo is a valid fh.
689 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
690 report_evil_fh(gv, io, PL_op->op_type);
695 PUSHi(PerlIO_fileno(fp));
707 anum = PerlLIO_umask(0);
708 (void)PerlLIO_umask(anum);
711 anum = PerlLIO_umask(POPi);
712 TAINT_PROPER("umask");
715 /* Only DIE if trying to restrict permissions on `user' (self).
716 * Otherwise it's harmless and more useful to just return undef
717 * since 'group' and 'other' concepts probably don't exist here. */
718 if (MAXARG >= 1 && (POPi & 0700))
719 DIE(aTHX_ "umask not implemented");
720 XPUSHs(&PL_sv_undef);
742 if (gv && (io = GvIO(gv))
743 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
746 XPUSHs(SvTIED_obj((SV*)io, mg));
751 call_method("BINMODE", G_SCALAR);
758 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
759 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
760 report_evil_fh(gv, io, PL_op->op_type);
761 SETERRNO(EBADF,RMS_IFI);
766 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
767 (discp) ? SvPV_nolen(discp) : Nullch)) {
768 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
769 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
770 mode_from_discipline(discp),
771 (discp) ? SvPV_nolen(discp) : Nullch)) {
792 I32 markoff = MARK - PL_stack_base;
793 const char *methname;
794 int how = PERL_MAGIC_tied;
798 switch(SvTYPE(varsv)) {
800 methname = "TIEHASH";
801 HvEITER_set((HV *)varsv, 0);
804 methname = "TIEARRAY";
807 #ifdef GV_UNIQUE_CHECK
808 if (GvUNIQUE((GV*)varsv)) {
809 Perl_croak(aTHX_ "Attempt to tie unique GV");
812 methname = "TIEHANDLE";
813 how = PERL_MAGIC_tiedscalar;
814 /* For tied filehandles, we apply tiedscalar magic to the IO
815 slot of the GP rather than the GV itself. AMS 20010812 */
817 GvIOp(varsv) = newIO();
818 varsv = (SV *)GvIOp(varsv);
821 methname = "TIESCALAR";
822 how = PERL_MAGIC_tiedscalar;
826 if (sv_isobject(*MARK)) {
828 PUSHSTACKi(PERLSI_MAGIC);
830 EXTEND(SP,(I32)items);
834 call_method(methname, G_SCALAR);
837 /* Not clear why we don't call call_method here too.
838 * perhaps to get different error message ?
840 stash = gv_stashsv(*MARK, FALSE);
841 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
842 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
846 PUSHSTACKi(PERLSI_MAGIC);
848 EXTEND(SP,(I32)items);
852 call_sv((SV*)GvCV(gv), G_SCALAR);
858 if (sv_isobject(sv)) {
859 sv_unmagic(varsv, how);
860 /* Croak if a self-tie on an aggregate is attempted. */
861 if (varsv == SvRV(sv) &&
862 (SvTYPE(varsv) == SVt_PVAV ||
863 SvTYPE(varsv) == SVt_PVHV))
865 "Self-ties of arrays and hashes are not supported");
866 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
869 SP = PL_stack_base + markoff;
879 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
880 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
882 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
885 if ((mg = SvTIED_mg(sv, how))) {
886 SV *obj = SvRV(SvTIED_obj(sv, mg));
890 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
891 isGV(gv) && (cv = GvCV(gv))) {
893 XPUSHs(SvTIED_obj((SV*)gv, mg));
894 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
897 call_sv((SV *)cv, G_VOID);
901 else if (ckWARN(WARN_UNTIE)) {
902 if (mg && SvREFCNT(obj) > 1)
903 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
904 "untie attempted while %"UVuf" inner references still exist",
905 (UV)SvREFCNT(obj) - 1 ) ;
909 sv_unmagic(sv, how) ;
918 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
919 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
921 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
924 if ((mg = SvTIED_mg(sv, how))) {
925 SV *osv = SvTIED_obj(sv, mg);
926 if (osv == mg->mg_obj)
927 osv = sv_mortalcopy(osv);
945 sv = sv_mortalcopy(&PL_sv_no);
946 sv_setpv(sv, "AnyDBM_File");
947 stash = gv_stashsv(sv, FALSE);
948 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
950 require_pv("AnyDBM_File.pm");
952 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
953 DIE(aTHX_ "No dbm on this machine");
963 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
965 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
968 call_sv((SV*)GvCV(gv), G_SCALAR);
971 if (!sv_isobject(TOPs)) {
976 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
979 call_sv((SV*)GvCV(gv), G_SCALAR);
983 if (sv_isobject(TOPs)) {
984 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
985 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1007 struct timeval timebuf;
1008 struct timeval *tbuf = &timebuf;
1012 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1017 # if BYTEORDER & 0xf0000
1018 # define ORDERBYTE (0x88888888 - BYTEORDER)
1020 # define ORDERBYTE (0x4444 - BYTEORDER)
1026 for (i = 1; i <= 3; i++) {
1034 /* little endians can use vecs directly */
1035 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1042 masksize = NFDBITS / NBBY;
1044 masksize = sizeof(long); /* documented int, everyone seems to use long */
1046 Zero(&fd_sets[0], 4, char*);
1049 # if SELECT_MIN_BITS == 1
1050 growsize = sizeof(fd_set);
1052 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1053 # undef SELECT_MIN_BITS
1054 # define SELECT_MIN_BITS __FD_SETSIZE
1056 /* If SELECT_MIN_BITS is greater than one we most probably will want
1057 * to align the sizes with SELECT_MIN_BITS/8 because for example
1058 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1059 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1060 * on (sets/tests/clears bits) is 32 bits. */
1061 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1069 timebuf.tv_sec = (long)value;
1070 value -= (NV)timebuf.tv_sec;
1071 timebuf.tv_usec = (long)(value * 1000000.0);
1074 tbuf = Null(struct timeval*);
1076 for (i = 1; i <= 3; i++) {
1082 else if (!SvPOK(sv))
1083 SvPV_force(sv,n_a); /* force string conversion */
1086 Sv_Grow(sv, growsize);
1090 while (++j <= growsize) {
1094 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1096 New(403, fd_sets[i], growsize, char);
1097 for (offset = 0; offset < growsize; offset += masksize) {
1098 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1099 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1102 fd_sets[i] = SvPVX(sv);
1106 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1107 /* Can't make just the (void*) conditional because that would be
1108 * cpp #if within cpp macro, and not all compilers like that. */
1109 nfound = PerlSock_select(
1111 (Select_fd_set_t) fd_sets[1],
1112 (Select_fd_set_t) fd_sets[2],
1113 (Select_fd_set_t) fd_sets[3],
1114 (void*) tbuf); /* Workaround for compiler bug. */
1116 nfound = PerlSock_select(
1118 (Select_fd_set_t) fd_sets[1],
1119 (Select_fd_set_t) fd_sets[2],
1120 (Select_fd_set_t) fd_sets[3],
1123 for (i = 1; i <= 3; i++) {
1126 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1128 for (offset = 0; offset < growsize; offset += masksize) {
1129 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1130 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1132 Safefree(fd_sets[i]);
1139 PUSHs(&PL_sv_undef);
1142 if (GIMME == G_ARRAY && tbuf) {
1143 value = (NV)(timebuf.tv_sec) +
1144 (NV)(timebuf.tv_usec) / 1000000.0;
1145 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1146 sv_setnv(sv, value);
1150 DIE(aTHX_ "select not implemented");
1155 Perl_setdefout(pTHX_ GV *gv)
1158 (void)SvREFCNT_inc(gv);
1160 SvREFCNT_dec(PL_defoutgv);
1167 GV *newdefout, *egv;
1170 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1172 egv = GvEGV(PL_defoutgv);
1177 XPUSHs(&PL_sv_undef);
1179 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1180 if (gvp && *gvp == egv) {
1181 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1185 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1190 if (!GvIO(newdefout))
1191 gv_IOadd(newdefout);
1192 setdefout(newdefout);
1210 if (gv && (io = GvIO(gv))
1211 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1213 const I32 gimme = GIMME_V;
1215 XPUSHs(SvTIED_obj((SV*)io, mg));
1218 call_method("GETC", gimme);
1221 if (gimme == G_SCALAR)
1222 SvSetMagicSV_nosteal(TARG, TOPs);
1225 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1226 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1227 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1228 report_evil_fh(gv, io, PL_op->op_type);
1229 SETERRNO(EBADF,RMS_IFI);
1233 sv_setpvn(TARG, " ", 1);
1234 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1235 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1236 /* Find out how many bytes the char needs */
1237 Size_t len = UTF8SKIP(SvPVX(TARG));
1240 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1241 SvCUR_set(TARG,1+len);
1251 return pp_sysread();
1255 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1258 register PERL_CONTEXT *cx;
1259 const I32 gimme = GIMME_V;
1264 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1266 cx->blk_sub.retop = retop;
1267 PAD_SET_CUR(CvPADLIST(cv), 1);
1269 setdefout(gv); /* locally select filehandle so $% et al work */
1302 SV *tmpsv = sv_newmortal();
1303 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1304 name = SvPV_nolen(tmpsv);
1307 DIE(aTHX_ "Undefined format \"%s\" called", name);
1308 DIE(aTHX_ "Not a format reference");
1311 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1313 IoFLAGS(io) &= ~IOf_DIDTOP;
1314 return doform(cv,gv,PL_op->op_next);
1320 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1321 register IO *io = GvIOp(gv);
1322 PerlIO *ofp = IoOFP(io);
1326 register PERL_CONTEXT *cx;
1328 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1329 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1332 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1333 PL_formtarget != PL_toptarget)
1337 if (!IoTOP_GV(io)) {
1341 if (!IoTOP_NAME(io)) {
1342 if (!IoFMT_NAME(io))
1343 IoFMT_NAME(io) = savepv(GvNAME(gv));
1344 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1345 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1346 if ((topgv && GvFORM(topgv)) ||
1347 !gv_fetchpv("top",FALSE,SVt_PVFM))
1348 IoTOP_NAME(io) = savesvpv(topname);
1350 IoTOP_NAME(io) = savepvn("top", 3);
1352 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1353 if (!topgv || !GvFORM(topgv)) {
1354 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1357 IoTOP_GV(io) = topgv;
1359 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1360 I32 lines = IoLINES_LEFT(io);
1361 const char *s = SvPVX_const(PL_formtarget);
1362 if (lines <= 0) /* Yow, header didn't even fit!!! */
1364 while (lines-- > 0) {
1365 s = strchr(s, '\n');
1371 const STRLEN save = SvCUR(PL_formtarget);
1372 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1373 do_print(PL_formtarget, ofp);
1374 SvCUR_set(PL_formtarget, save);
1375 sv_chop(PL_formtarget, s);
1376 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1379 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1380 do_print(PL_formfeed, ofp);
1381 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1383 PL_formtarget = PL_toptarget;
1384 IoFLAGS(io) |= IOf_DIDTOP;
1387 DIE(aTHX_ "bad top format reference");
1392 SV *sv = sv_newmortal();
1393 gv_efullname4(sv, fgv, Nullch, FALSE);
1394 name = SvPV_nolen(sv);
1397 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1400 DIE(aTHX_ "Undefined top format called");
1404 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1405 return doform(cv,gv,PL_op);
1409 POPBLOCK(cx,PL_curpm);
1415 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1417 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1418 else if (ckWARN(WARN_CLOSED))
1419 report_evil_fh(gv, io, PL_op->op_type);
1424 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1425 if (ckWARN(WARN_IO))
1426 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1428 if (!do_print(PL_formtarget, fp))
1431 FmLINES(PL_formtarget) = 0;
1432 SvCUR_set(PL_formtarget, 0);
1433 *SvEND(PL_formtarget) = '\0';
1434 if (IoFLAGS(io) & IOf_FLUSH)
1435 (void)PerlIO_flush(fp);
1440 PL_formtarget = PL_bodytarget;
1442 return cx->blk_sub.retop;
1447 dVAR; dSP; dMARK; dORIGMARK;
1454 if (PL_op->op_flags & OPf_STACKED)
1459 if (gv && (io = GvIO(gv))
1460 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1462 if (MARK == ORIGMARK) {
1465 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1469 *MARK = SvTIED_obj((SV*)io, mg);
1472 call_method("PRINTF", G_SCALAR);
1475 MARK = ORIGMARK + 1;
1482 if (!(io = GvIO(gv))) {
1483 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1484 report_evil_fh(gv, io, PL_op->op_type);
1485 SETERRNO(EBADF,RMS_IFI);
1488 else if (!(fp = IoOFP(io))) {
1489 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1491 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1492 else if (ckWARN(WARN_CLOSED))
1493 report_evil_fh(gv, io, PL_op->op_type);
1495 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1499 do_sprintf(sv, SP - MARK, MARK + 1);
1500 if (!do_print(sv, fp))
1503 if (IoFLAGS(io) & IOf_FLUSH)
1504 if (PerlIO_flush(fp) == EOF)
1515 PUSHs(&PL_sv_undef);
1536 /* Need TIEHANDLE method ? */
1538 tmps = SvPV(sv, len);
1539 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1540 IoLINES(GvIOp(gv)) = 0;
1544 PUSHs(&PL_sv_undef);
1551 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1558 Sock_size_t bufsize;
1567 bool charstart = FALSE;
1568 STRLEN charskip = 0;
1572 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1573 && gv && (io = GvIO(gv))
1574 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1579 *MARK = SvTIED_obj((SV*)io, mg);
1581 call_method("READ", G_SCALAR);
1594 sv_setpvn(bufsv, "", 0);
1595 length = SvIVx(*++MARK);
1598 offset = SvIVx(*++MARK);
1602 if (!io || !IoIFP(io)) {
1603 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1604 report_evil_fh(gv, io, PL_op->op_type);
1605 SETERRNO(EBADF,RMS_IFI);
1608 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1609 buffer = SvPVutf8_force(bufsv, blen);
1610 /* UTF-8 may not have been set if they are all low bytes */
1615 buffer = SvPV_force(bufsv, blen);
1616 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1619 DIE(aTHX_ "Negative length");
1627 if (PL_op->op_type == OP_RECV) {
1628 char namebuf[MAXPATHLEN];
1629 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1630 bufsize = sizeof (struct sockaddr_in);
1632 bufsize = sizeof namebuf;
1634 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1638 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1639 /* 'offset' means 'flags' here */
1640 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1641 (struct sockaddr *)namebuf, &bufsize);
1645 /* Bogus return without padding */
1646 bufsize = sizeof (struct sockaddr_in);
1648 SvCUR_set(bufsv, count);
1649 *SvEND(bufsv) = '\0';
1650 (void)SvPOK_only(bufsv);
1654 /* This should not be marked tainted if the fp is marked clean */
1655 if (!(IoFLAGS(io) & IOf_UNTAINT))
1656 SvTAINTED_on(bufsv);
1658 sv_setpvn(TARG, namebuf, bufsize);
1663 if (PL_op->op_type == OP_RECV)
1664 DIE(aTHX_ PL_no_sock_func, "recv");
1666 if (DO_UTF8(bufsv)) {
1667 /* offset adjust in characters not bytes */
1668 blen = sv_len_utf8(bufsv);
1671 if (-offset > (int)blen)
1672 DIE(aTHX_ "Offset outside string");
1675 if (DO_UTF8(bufsv)) {
1676 /* convert offset-as-chars to offset-as-bytes */
1677 if (offset >= (int)blen)
1678 offset += SvCUR(bufsv) - blen;
1680 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1683 bufsize = SvCUR(bufsv);
1684 /* Allocating length + offset + 1 isn't perfect in the case of reading
1685 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1687 (should be 2 * length + offset + 1, or possibly something longer if
1688 PL_encoding is true) */
1689 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1690 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1691 Zero(buffer+bufsize, offset-bufsize, char);
1693 buffer = buffer + offset;
1695 read_target = bufsv;
1697 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1698 concatenate it to the current buffer. */
1700 /* Truncate the existing buffer to the start of where we will be
1702 SvCUR_set(bufsv, offset);
1704 read_target = sv_newmortal();
1705 (void)SvUPGRADE(read_target, SVt_PV);
1706 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1709 if (PL_op->op_type == OP_SYSREAD) {
1710 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1711 if (IoTYPE(io) == IoTYPE_SOCKET) {
1712 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1718 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1723 #ifdef HAS_SOCKET__bad_code_maybe
1724 if (IoTYPE(io) == IoTYPE_SOCKET) {
1725 char namebuf[MAXPATHLEN];
1726 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1727 bufsize = sizeof (struct sockaddr_in);
1729 bufsize = sizeof namebuf;
1731 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1732 (struct sockaddr *)namebuf, &bufsize);
1737 count = PerlIO_read(IoIFP(io), buffer, length);
1738 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1739 if (count == 0 && PerlIO_error(IoIFP(io)))
1743 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1744 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1747 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1748 *SvEND(read_target) = '\0';
1749 (void)SvPOK_only(read_target);
1750 if (fp_utf8 && !IN_BYTES) {
1751 /* Look at utf8 we got back and count the characters */
1752 char *bend = buffer + count;
1753 while (buffer < bend) {
1755 skip = UTF8SKIP(buffer);
1758 if (buffer - charskip + skip > bend) {
1759 /* partial character - try for rest of it */
1760 length = skip - (bend-buffer);
1761 offset = bend - SvPVX(bufsv);
1773 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1774 provided amount read (count) was what was requested (length)
1776 if (got < wanted && count == length) {
1777 length = wanted - got;
1778 offset = bend - SvPVX(bufsv);
1781 /* return value is character count */
1785 else if (buffer_utf8) {
1786 /* Let svcatsv upgrade the bytes we read in to utf8.
1787 The buffer is a mortal so will be freed soon. */
1788 sv_catsv_nomg(bufsv, read_target);
1791 /* This should not be marked tainted if the fp is marked clean */
1792 if (!(IoFLAGS(io) & IOf_UNTAINT))
1793 SvTAINTED_on(bufsv);
1806 int items = (SP - PL_stack_base) - TOPMARK;
1810 sv = sv_2mortal(newSViv(sv_len(*SP)));
1819 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1830 if (PL_op->op_type == OP_SYSWRITE
1831 && gv && (io = GvIO(gv))
1832 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1837 *MARK = SvTIED_obj((SV*)io, mg);
1839 call_method("WRITE", G_SCALAR);
1850 #if Size_t_size > IVSIZE
1851 length = (Size_t)SvNVx(*++MARK);
1853 length = (Size_t)SvIVx(*++MARK);
1855 if ((SSize_t)length < 0)
1856 DIE(aTHX_ "Negative length");
1859 if (!io || !IoIFP(io)) {
1861 if (ckWARN(WARN_CLOSED))
1862 report_evil_fh(gv, io, PL_op->op_type);
1863 SETERRNO(EBADF,RMS_IFI);
1867 if (PerlIO_isutf8(IoIFP(io))) {
1868 if (!SvUTF8(bufsv)) {
1869 bufsv = sv_2mortal(newSVsv(bufsv));
1870 buffer = sv_2pvutf8(bufsv, &blen);
1872 buffer = SvPV(bufsv, blen);
1875 if (DO_UTF8(bufsv)) {
1876 /* Not modifying source SV, so making a temporary copy. */
1877 bufsv = sv_2mortal(newSVsv(bufsv));
1878 sv_utf8_downgrade(bufsv, FALSE);
1880 buffer = SvPV(bufsv, blen);
1883 if (PL_op->op_type == OP_SYSWRITE) {
1885 if (DO_UTF8(bufsv)) {
1886 /* length and offset are in chars */
1887 blen = sv_len_utf8(bufsv);
1890 offset = SvIVx(*++MARK);
1892 if (-offset > (IV)blen)
1893 DIE(aTHX_ "Offset outside string");
1895 } else if (offset >= (IV)blen && blen > 0)
1896 DIE(aTHX_ "Offset outside string");
1899 if (length > blen - offset)
1900 length = blen - offset;
1901 if (DO_UTF8(bufsv)) {
1902 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1903 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1906 buffer = buffer+offset;
1908 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1909 if (IoTYPE(io) == IoTYPE_SOCKET) {
1910 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1916 /* See the note at doio.c:do_print about filesize limits. --jhi */
1917 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1922 else if (SP > MARK) {
1925 sockbuf = SvPVx(*++MARK, mlen);
1926 /* length is really flags */
1927 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1928 length, (struct sockaddr *)sockbuf, mlen);
1931 /* length is really flags */
1932 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1935 DIE(aTHX_ PL_no_sock_func, "send");
1941 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1942 #if Size_t_size > IVSIZE
1956 return pp_sysread();
1967 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1969 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1971 if (io && !IoIFP(io)) {
1972 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1974 IoFLAGS(io) &= ~IOf_START;
1975 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1976 sv_setpvn(GvSV(gv), "-", 1);
1977 SvSETMAGIC(GvSV(gv));
1979 else if (!nextargv(gv))
1984 gv = PL_last_in_gv; /* eof */
1987 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1989 if (gv && (io = GvIO(gv))
1990 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1993 XPUSHs(SvTIED_obj((SV*)io, mg));
1996 call_method("EOF", G_SCALAR);
2002 PUSHs(boolSV(!gv || do_eof(gv)));
2016 gv = PL_last_in_gv = (GV*)POPs;
2018 if (gv && (io = GvIO(gv))
2019 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2022 XPUSHs(SvTIED_obj((SV*)io, mg));
2025 call_method("TELL", G_SCALAR);
2031 #if LSEEKSIZE > IVSIZE
2032 PUSHn( do_tell(gv) );
2034 PUSHi( do_tell(gv) );
2041 return pp_sysseek();
2050 #if LSEEKSIZE > IVSIZE
2051 Off_t offset = (Off_t)SvNVx(POPs);
2053 Off_t offset = (Off_t)SvIVx(POPs);
2057 gv = PL_last_in_gv = (GV*)POPs;
2059 if (gv && (io = GvIO(gv))
2060 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2063 XPUSHs(SvTIED_obj((SV*)io, mg));
2064 #if LSEEKSIZE > IVSIZE
2065 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2067 XPUSHs(sv_2mortal(newSViv(offset)));
2069 XPUSHs(sv_2mortal(newSViv(whence)));
2072 call_method("SEEK", G_SCALAR);
2078 if (PL_op->op_type == OP_SEEK)
2079 PUSHs(boolSV(do_seek(gv, offset, whence)));
2081 Off_t sought = do_sysseek(gv, offset, whence);
2083 PUSHs(&PL_sv_undef);
2086 #if LSEEKSIZE > IVSIZE
2091 : newSVpvn(zero_but_true, ZBTLEN);
2092 PUSHs(sv_2mortal(sv));
2101 /* There seems to be no consensus on the length type of truncate()
2102 * and ftruncate(), both off_t and size_t have supporters. In
2103 * general one would think that when using large files, off_t is
2104 * at least as wide as size_t, so using an off_t should be okay. */
2105 /* XXX Configure probe for the length type of *truncate() needed XXX */
2108 #if Off_t_size > IVSIZE
2113 /* Checking for length < 0 is problematic as the type might or
2114 * might not be signed: if it is not, clever compilers will moan. */
2115 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2122 if (PL_op->op_flags & OPf_SPECIAL) {
2123 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2132 TAINT_PROPER("truncate");
2133 if (!(fp = IoIFP(io))) {
2139 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2141 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2152 if (SvTYPE(sv) == SVt_PVGV) {
2153 tmpgv = (GV*)sv; /* *main::FRED for example */
2154 goto do_ftruncate_gv;
2156 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2157 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2158 goto do_ftruncate_gv;
2160 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2161 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2162 goto do_ftruncate_io;
2165 name = SvPV(sv, n_a);
2166 TAINT_PROPER("truncate");
2168 if (truncate(name, len) < 0)
2174 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2177 if (my_chsize(tmpfd, len) < 0)
2179 PerlLIO_close(tmpfd);
2188 SETERRNO(EBADF,RMS_IFI);
2202 unsigned int func = POPu;
2203 const int optype = PL_op->op_type;
2207 IO *io = gv ? GvIOn(gv) : 0;
2209 if (!io || !argsv || !IoIFP(io)) {
2210 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2211 report_evil_fh(gv, io, PL_op->op_type);
2212 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2216 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2219 s = SvPV_force(argsv, len);
2220 need = IOCPARM_LEN(func);
2222 s = Sv_Grow(argsv, need + 1);
2223 SvCUR_set(argsv, need);
2226 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2229 retval = SvIV(argsv);
2230 s = INT2PTR(char*,retval); /* ouch */
2233 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2235 if (optype == OP_IOCTL)
2237 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2239 DIE(aTHX_ "ioctl is not implemented");
2243 DIE(aTHX_ "fcntl is not implemented");
2245 #if defined(OS2) && defined(__EMX__)
2246 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2248 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2252 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2254 if (s[SvCUR(argsv)] != 17)
2255 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2257 s[SvCUR(argsv)] = 0; /* put our null back */
2258 SvSETMAGIC(argsv); /* Assume it has changed */
2267 PUSHp(zero_but_true, ZBTLEN);
2288 if (gv && (io = GvIO(gv)))
2295 (void)PerlIO_flush(fp);
2296 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2299 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2300 report_evil_fh(gv, io, PL_op->op_type);
2302 SETERRNO(EBADF,RMS_IFI);
2307 DIE(aTHX_ PL_no_func, "flock()");
2319 int protocol = POPi;
2325 io = gv ? GvIOn(gv) : NULL;
2328 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2329 report_evil_fh(gv, io, PL_op->op_type);
2331 do_close(gv, FALSE);
2332 SETERRNO(EBADF,LIB_INVARG);
2337 do_close(gv, FALSE);
2339 TAINT_PROPER("socket");
2340 fd = PerlSock_socket(domain, type, protocol);
2343 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2344 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2345 IoTYPE(io) = IoTYPE_SOCKET;
2346 if (!IoIFP(io) || !IoOFP(io)) {
2347 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2348 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2349 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2352 #if defined(HAS_FCNTL) && defined(F_SETFD)
2353 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2357 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2362 DIE(aTHX_ PL_no_sock_func, "socket");
2368 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2374 int protocol = POPi;
2381 io1 = gv1 ? GvIOn(gv1) : NULL;
2382 io2 = gv2 ? GvIOn(gv2) : NULL;
2383 if (!gv1 || !gv2 || !io1 || !io2) {
2384 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2386 report_evil_fh(gv1, io1, PL_op->op_type);
2388 report_evil_fh(gv1, io2, PL_op->op_type);
2391 do_close(gv1, FALSE);
2393 do_close(gv2, FALSE);
2398 do_close(gv1, FALSE);
2400 do_close(gv2, FALSE);
2402 TAINT_PROPER("socketpair");
2403 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2405 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2406 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2407 IoTYPE(io1) = IoTYPE_SOCKET;
2408 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2409 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2410 IoTYPE(io2) = IoTYPE_SOCKET;
2411 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2412 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2413 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2414 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2415 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2416 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2417 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2420 #if defined(HAS_FCNTL) && defined(F_SETFD)
2421 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2422 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2427 DIE(aTHX_ PL_no_sock_func, "socketpair");
2435 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2436 extern void GETPRIVMODE();
2437 extern void GETUSERMODE();
2442 register IO *io = GvIOn(gv);
2446 int mpeprivmode = 0;
2449 if (!io || !IoIFP(io))
2452 addr = SvPV(addrsv, len);
2453 TAINT_PROPER("bind");
2454 #ifdef MPE /* Deal with MPE bind() peculiarities */
2455 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2456 /* The address *MUST* stupidly be zero. */
2457 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2458 /* PRIV mode is required to bind() to ports < 1024. */
2459 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2460 ((struct sockaddr_in *)addr)->sin_port > 0) {
2461 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2466 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2467 (struct sockaddr *)addr, len) >= 0)
2470 #ifdef MPE /* Switch back to USER mode */
2481 if (ckWARN(WARN_CLOSED))
2482 report_evil_fh(gv, io, PL_op->op_type);
2483 SETERRNO(EBADF,SS_IVCHAN);
2486 DIE(aTHX_ PL_no_sock_func, "bind");
2497 register IO *io = GvIOn(gv);
2500 if (!io || !IoIFP(io))
2503 addr = SvPV(addrsv, len);
2504 TAINT_PROPER("connect");
2505 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2511 if (ckWARN(WARN_CLOSED))
2512 report_evil_fh(gv, io, PL_op->op_type);
2513 SETERRNO(EBADF,SS_IVCHAN);
2516 DIE(aTHX_ PL_no_sock_func, "connect");
2526 register IO *io = gv ? GvIOn(gv) : NULL;
2528 if (!gv || !io || !IoIFP(io))
2531 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2537 if (ckWARN(WARN_CLOSED))
2538 report_evil_fh(gv, io, PL_op->op_type);
2539 SETERRNO(EBADF,SS_IVCHAN);
2542 DIE(aTHX_ PL_no_sock_func, "listen");
2554 char namebuf[MAXPATHLEN];
2555 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2556 Sock_size_t len = sizeof (struct sockaddr_in);
2558 Sock_size_t len = sizeof namebuf;
2571 if (!gstio || !IoIFP(gstio))
2575 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2579 do_close(ngv, FALSE);
2580 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2581 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2582 IoTYPE(nstio) = IoTYPE_SOCKET;
2583 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2584 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2585 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2586 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2589 #if defined(HAS_FCNTL) && defined(F_SETFD)
2590 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2594 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2595 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2597 #ifdef __SCO_VERSION__
2598 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2601 PUSHp(namebuf, len);
2605 if (ckWARN(WARN_CLOSED))
2606 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2607 SETERRNO(EBADF,SS_IVCHAN);
2613 DIE(aTHX_ PL_no_sock_func, "accept");
2623 register IO *io = GvIOn(gv);
2625 if (!io || !IoIFP(io))
2628 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2632 if (ckWARN(WARN_CLOSED))
2633 report_evil_fh(gv, io, PL_op->op_type);
2634 SETERRNO(EBADF,SS_IVCHAN);
2637 DIE(aTHX_ PL_no_sock_func, "shutdown");
2644 return pp_ssockopt();
2646 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2654 int optype = PL_op->op_type;
2657 unsigned int optname;
2663 if (optype == OP_GSOCKOPT)
2664 sv = sv_2mortal(NEWSV(22, 257));
2667 optname = (unsigned int) POPi;
2668 lvl = (unsigned int) POPi;
2672 if (!io || !IoIFP(io))
2675 fd = PerlIO_fileno(IoIFP(io));
2679 (void)SvPOK_only(sv);
2683 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2698 aint = (int)SvIV(sv);
2702 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2711 if (ckWARN(WARN_CLOSED))
2712 report_evil_fh(gv, io, optype);
2713 SETERRNO(EBADF,SS_IVCHAN);
2718 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2725 return pp_getpeername();
2727 DIE(aTHX_ PL_no_sock_func, "getsockname");
2735 int optype = PL_op->op_type;
2739 register IO *io = GvIOn(gv);
2742 if (!io || !IoIFP(io))
2745 sv = sv_2mortal(NEWSV(22, 257));
2746 (void)SvPOK_only(sv);
2750 fd = PerlIO_fileno(IoIFP(io));
2752 case OP_GETSOCKNAME:
2753 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2756 case OP_GETPEERNAME:
2757 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2759 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2761 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";
2762 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2763 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2764 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2765 sizeof(u_short) + sizeof(struct in_addr))) {
2772 #ifdef BOGUS_GETNAME_RETURN
2773 /* Interactive Unix, getpeername() and getsockname()
2774 does not return valid namelen */
2775 if (len == BOGUS_GETNAME_RETURN)
2776 len = sizeof(struct sockaddr);
2784 if (ckWARN(WARN_CLOSED))
2785 report_evil_fh(gv, io, optype);
2786 SETERRNO(EBADF,SS_IVCHAN);
2791 DIE(aTHX_ PL_no_sock_func, "getpeername");
2810 if (PL_op->op_flags & OPf_REF) {
2812 if (PL_op->op_type == OP_LSTAT) {
2813 if (gv != PL_defgv) {
2814 if (ckWARN(WARN_IO))
2815 Perl_warner(aTHX_ packWARN(WARN_IO),
2816 "lstat() on filehandle %s", GvENAME(gv));
2817 } else if (PL_laststype != OP_LSTAT)
2818 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2822 if (gv != PL_defgv) {
2823 PL_laststype = OP_STAT;
2825 sv_setpvn(PL_statname, "", 0);
2826 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2827 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2829 if (PL_laststatval < 0) {
2830 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2831 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2837 if (SvTYPE(sv) == SVt_PVGV) {
2841 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2843 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2844 Perl_warner(aTHX_ packWARN(WARN_IO),
2845 "lstat() on filehandle %s", GvENAME(gv));
2848 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);
2854 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2855 if (PL_laststatval < 0) {
2856 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2857 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2863 if (gimme != G_ARRAY) {
2864 if (gimme != G_VOID)
2865 XPUSHs(boolSV(max));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2872 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2874 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2875 #if Uid_t_size > IVSIZE
2876 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2878 # if Uid_t_sign <= 0
2879 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2881 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2884 #if Gid_t_size > IVSIZE
2885 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2887 # if Gid_t_sign <= 0
2888 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2890 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2893 #ifdef USE_STAT_RDEV
2894 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2896 PUSHs(sv_2mortal(newSVpvn("", 0)));
2898 #if Off_t_size > IVSIZE
2899 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2906 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2910 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2912 #ifdef USE_STAT_BLOCKS
2913 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2914 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2916 PUSHs(sv_2mortal(newSVpvn("", 0)));
2917 PUSHs(sv_2mortal(newSVpvn("", 0)));
2923 /* This macro is used by the stacked filetest operators :
2924 * if the previous filetest failed, short-circuit and pass its value.
2925 * Else, discard it from the stack and continue. --rgs
2927 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2928 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2929 else { (void)POPs; PUTBACK; } \
2936 STACKED_FTEST_CHECK;
2937 #if defined(HAS_ACCESS) && defined(R_OK)
2938 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2940 result = access(POPpx, R_OK);
2955 if (cando(S_IRUSR, 0, &PL_statcache))
2964 STACKED_FTEST_CHECK;
2965 #if defined(HAS_ACCESS) && defined(W_OK)
2966 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2968 result = access(POPpx, W_OK);
2983 if (cando(S_IWUSR, 0, &PL_statcache))
2992 STACKED_FTEST_CHECK;
2993 #if defined(HAS_ACCESS) && defined(X_OK)
2994 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2996 result = access(POPpx, X_OK);
3011 if (cando(S_IXUSR, 0, &PL_statcache))
3020 STACKED_FTEST_CHECK;
3021 #ifdef PERL_EFF_ACCESS_R_OK
3022 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3024 result = PERL_EFF_ACCESS_R_OK(POPpx);
3039 if (cando(S_IRUSR, 1, &PL_statcache))
3048 STACKED_FTEST_CHECK;
3049 #ifdef PERL_EFF_ACCESS_W_OK
3050 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3052 result = PERL_EFF_ACCESS_W_OK(POPpx);
3067 if (cando(S_IWUSR, 1, &PL_statcache))
3076 STACKED_FTEST_CHECK;
3077 #ifdef PERL_EFF_ACCESS_X_OK
3078 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3080 result = PERL_EFF_ACCESS_X_OK(POPpx);
3095 if (cando(S_IXUSR, 1, &PL_statcache))
3104 STACKED_FTEST_CHECK;
3114 return pp_ftrowned();
3121 STACKED_FTEST_CHECK;
3126 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3136 STACKED_FTEST_CHECK;
3141 if (PL_statcache.st_size == 0)
3150 STACKED_FTEST_CHECK;
3155 #if Off_t_size > IVSIZE
3156 PUSHn(PL_statcache.st_size);
3158 PUSHi(PL_statcache.st_size);
3167 STACKED_FTEST_CHECK;
3172 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3180 STACKED_FTEST_CHECK;
3185 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3193 STACKED_FTEST_CHECK;
3198 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3206 STACKED_FTEST_CHECK;
3211 if (S_ISSOCK(PL_statcache.st_mode))
3220 STACKED_FTEST_CHECK;
3225 if (S_ISCHR(PL_statcache.st_mode))
3234 STACKED_FTEST_CHECK;
3239 if (S_ISBLK(PL_statcache.st_mode))
3248 STACKED_FTEST_CHECK;
3253 if (S_ISREG(PL_statcache.st_mode))
3262 STACKED_FTEST_CHECK;
3267 if (S_ISDIR(PL_statcache.st_mode))
3276 STACKED_FTEST_CHECK;
3281 if (S_ISFIFO(PL_statcache.st_mode))
3288 I32 result = my_lstat();
3292 if (S_ISLNK(PL_statcache.st_mode))
3302 STACKED_FTEST_CHECK;
3307 if (PL_statcache.st_mode & S_ISUID)
3318 STACKED_FTEST_CHECK;
3323 if (PL_statcache.st_mode & S_ISGID)
3334 STACKED_FTEST_CHECK;
3339 if (PL_statcache.st_mode & S_ISVTX)
3352 STACKED_FTEST_CHECK;
3354 if (PL_op->op_flags & OPf_REF)
3356 else if (isGV(TOPs))
3358 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3359 gv = (GV*)SvRV(POPs);
3361 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3363 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3364 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3365 else if (tmpsv && SvOK(tmpsv)) {
3367 char *tmps = SvPV(tmpsv, n_a);
3375 if (PerlLIO_isatty(fd))
3380 #if defined(atarist) /* this will work with atariST. Configure will
3381 make guesses for other systems. */
3382 # define FILE_base(f) ((f)->_base)
3383 # define FILE_ptr(f) ((f)->_ptr)
3384 # define FILE_cnt(f) ((f)->_cnt)
3385 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3395 register STDCHAR *s;
3402 STACKED_FTEST_CHECK;
3404 if (PL_op->op_flags & OPf_REF)
3406 else if (isGV(TOPs))
3408 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3409 gv = (GV*)SvRV(POPs);
3415 if (gv == PL_defgv) {
3417 io = GvIO(PL_statgv);
3420 goto really_filename;
3425 PL_laststatval = -1;
3426 sv_setpvn(PL_statname, "", 0);
3427 io = GvIO(PL_statgv);
3429 if (io && IoIFP(io)) {
3430 if (! PerlIO_has_base(IoIFP(io)))
3431 DIE(aTHX_ "-T and -B not implemented on filehandles");
3432 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3433 if (PL_laststatval < 0)
3435 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3436 if (PL_op->op_type == OP_FTTEXT)
3441 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3442 i = PerlIO_getc(IoIFP(io));
3444 (void)PerlIO_ungetc(IoIFP(io),i);
3446 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3448 len = PerlIO_get_bufsiz(IoIFP(io));
3449 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3450 /* sfio can have large buffers - limit to 512 */
3455 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3457 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3459 SETERRNO(EBADF,RMS_IFI);
3467 PL_laststype = OP_STAT;
3468 sv_setpv(PL_statname, SvPV(sv, n_a));
3469 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3470 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3471 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3474 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3475 if (PL_laststatval < 0) {
3476 (void)PerlIO_close(fp);
3479 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3480 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3481 (void)PerlIO_close(fp);
3483 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3484 RETPUSHNO; /* special case NFS directories */
3485 RETPUSHYES; /* null file is anything */
3490 /* now scan s to look for textiness */
3491 /* XXX ASCII dependent code */
3493 #if defined(DOSISH) || defined(USEMYBINMODE)
3494 /* ignore trailing ^Z on short files */
3495 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3499 for (i = 0; i < len; i++, s++) {
3500 if (!*s) { /* null never allowed in text */
3505 else if (!(isPRINT(*s) || isSPACE(*s)))
3508 else if (*s & 128) {
3510 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3513 /* utf8 characters don't count as odd */
3514 if (UTF8_IS_START(*s)) {
3515 int ulen = UTF8SKIP(s);
3516 if (ulen < len - i) {
3518 for (j = 1; j < ulen; j++) {
3519 if (!UTF8_IS_CONTINUATION(s[j]))
3522 --ulen; /* loop does extra increment */
3532 *s != '\n' && *s != '\r' && *s != '\b' &&
3533 *s != '\t' && *s != '\f' && *s != 27)
3538 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3563 if( !tmps || !*tmps ) {
3564 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3565 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3567 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3572 deprecate("chdir('') or chdir(undef) as chdir()");
3573 tmps = SvPV(*svp, n_a);
3577 TAINT_PROPER("chdir");
3582 TAINT_PROPER("chdir");
3583 PUSHi( PerlDir_chdir(tmps) >= 0 );
3585 /* Clear the DEFAULT element of ENV so we'll get the new value
3587 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3595 dSP; dMARK; dTARGET;
3596 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3602 DIE(aTHX_ PL_no_func, "chown");
3612 TAINT_PROPER("chroot");
3613 PUSHi( chroot(tmps) >= 0 );
3616 DIE(aTHX_ PL_no_func, "chroot");
3622 dSP; dMARK; dTARGET;
3624 value = (I32)apply(PL_op->op_type, MARK, SP);
3632 dSP; dMARK; dTARGET;
3634 value = (I32)apply(PL_op->op_type, MARK, SP);
3642 dSP; dMARK; dTARGET;
3644 value = (I32)apply(PL_op->op_type, MARK, SP);
3656 char *tmps2 = POPpx;
3657 char *tmps = SvPV(TOPs, n_a);
3658 TAINT_PROPER("rename");
3660 anum = PerlLIO_rename(tmps, tmps2);
3662 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3663 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3666 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3667 (void)UNLINK(tmps2);
3668 if (!(anum = link(tmps, tmps2)))
3669 anum = UNLINK(tmps);
3682 char *tmps2 = POPpx;
3683 char *tmps = SvPV(TOPs, n_a);
3684 TAINT_PROPER("link");
3685 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3688 DIE(aTHX_ PL_no_func, "link");
3697 char *tmps2 = POPpx;
3698 char *tmps = SvPV(TOPs, n_a);
3699 TAINT_PROPER("symlink");
3700 SETi( symlink(tmps, tmps2) >= 0 );
3703 DIE(aTHX_ PL_no_func, "symlink");
3713 char buf[MAXPATHLEN];
3717 #ifndef INCOMPLETE_TAINTS
3721 len = readlink(tmps, buf, sizeof(buf) - 1);
3729 RETSETUNDEF; /* just pretend it's a normal file */
3733 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3735 S_dooneliner(pTHX_ char *cmd, char *filename)
3737 char *save_filename = filename;
3743 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3744 strcpy(cmdline, cmd);
3745 strcat(cmdline, " ");
3746 for (s = cmdline + strlen(cmdline); *filename; ) {
3751 myfp = PerlProc_popen(cmdline, "r");
3755 SV *tmpsv = sv_newmortal();
3756 /* Need to save/restore 'PL_rs' ?? */
3757 s = sv_gets(tmpsv, myfp, 0);
3758 (void)PerlProc_pclose(myfp);
3762 #ifdef HAS_SYS_ERRLIST
3767 /* you don't see this */
3769 #ifdef HAS_SYS_ERRLIST
3777 if (instr(s, errmsg)) {
3784 #define EACCES EPERM
3786 if (instr(s, "cannot make"))
3787 SETERRNO(EEXIST,RMS_FEX);
3788 else if (instr(s, "existing file"))
3789 SETERRNO(EEXIST,RMS_FEX);
3790 else if (instr(s, "ile exists"))
3791 SETERRNO(EEXIST,RMS_FEX);
3792 else if (instr(s, "non-exist"))
3793 SETERRNO(ENOENT,RMS_FNF);
3794 else if (instr(s, "does not exist"))
3795 SETERRNO(ENOENT,RMS_FNF);
3796 else if (instr(s, "not empty"))
3797 SETERRNO(EBUSY,SS_DEVOFFLINE);
3798 else if (instr(s, "cannot access"))
3799 SETERRNO(EACCES,RMS_PRV);
3801 SETERRNO(EPERM,RMS_PRV);
3804 else { /* some mkdirs return no failure indication */
3805 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3806 if (PL_op->op_type == OP_RMDIR)
3811 SETERRNO(EACCES,RMS_PRV); /* a guess */
3820 /* This macro removes trailing slashes from a directory name.
3821 * Different operating and file systems take differently to
3822 * trailing slashes. According to POSIX 1003.1 1996 Edition
3823 * any number of trailing slashes should be allowed.
3824 * Thusly we snip them away so that even non-conforming
3825 * systems are happy.
3826 * We should probably do this "filtering" for all
3827 * the functions that expect (potentially) directory names:
3828 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3829 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3831 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3832 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3835 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3836 (tmps) = savepvn((tmps), (len)); \
3856 TRIMSLASHES(tmps,len,copy);
3858 TAINT_PROPER("mkdir");
3860 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3862 SETi( dooneliner("mkdir", tmps) );
3863 oldumask = PerlLIO_umask(0);
3864 PerlLIO_umask(oldumask);
3865 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3879 TRIMSLASHES(tmps,len,copy);
3880 TAINT_PROPER("rmdir");
3882 SETi( PerlDir_rmdir(tmps) >= 0 );
3884 SETi( dooneliner("rmdir", tmps) );
3891 /* Directory calls. */
3895 #if defined(Direntry_t) && defined(HAS_READDIR)
3898 char *dirname = POPpx;
3900 register IO *io = GvIOn(gv);
3906 PerlDir_close(IoDIRP(io));
3907 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3913 SETERRNO(EBADF,RMS_DIR);
3916 DIE(aTHX_ PL_no_dir_func, "opendir");
3922 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3923 DIE(aTHX_ PL_no_dir_func, "readdir");
3925 #if !defined(I_DIRENT) && !defined(VMS)
3926 Direntry_t *readdir (DIR *);
3931 const I32 gimme = GIMME;
3932 GV *gv = (GV *)POPs;
3933 register Direntry_t *dp;
3934 register IO *io = GvIOn(gv);
3936 if (!io || !IoDIRP(io))
3940 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3944 sv = newSVpvn(dp->d_name, dp->d_namlen);
3946 sv = newSVpv(dp->d_name, 0);
3948 #ifndef INCOMPLETE_TAINTS
3949 if (!(IoFLAGS(io) & IOf_UNTAINT))
3952 XPUSHs(sv_2mortal(sv));
3954 while (gimme == G_ARRAY);
3956 if (!dp && gimme != G_ARRAY)
3963 SETERRNO(EBADF,RMS_ISI);
3964 if (GIMME == G_ARRAY)
3973 #if defined(HAS_TELLDIR) || defined(telldir)
3975 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3976 /* XXX netbsd still seemed to.
3977 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3978 --JHI 1999-Feb-02 */
3979 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3980 long telldir (DIR *);
3983 register IO *io = GvIOn(gv);
3985 if (!io || !IoDIRP(io))
3988 PUSHi( PerlDir_tell(IoDIRP(io)) );
3992 SETERRNO(EBADF,RMS_ISI);
3995 DIE(aTHX_ PL_no_dir_func, "telldir");
4001 #if defined(HAS_SEEKDIR) || defined(seekdir)
4005 register IO *io = GvIOn(gv);
4007 if (!io || !IoDIRP(io))
4010 (void)PerlDir_seek(IoDIRP(io), along);
4015 SETERRNO(EBADF,RMS_ISI);
4018 DIE(aTHX_ PL_no_dir_func, "seekdir");
4024 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4027 register IO *io = GvIOn(gv);
4029 if (!io || !IoDIRP(io))
4032 (void)PerlDir_rewind(IoDIRP(io));
4036 SETERRNO(EBADF,RMS_ISI);
4039 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4045 #if defined(Direntry_t) && defined(HAS_READDIR)
4048 register IO *io = GvIOn(gv);
4050 if (!io || !IoDIRP(io))
4053 #ifdef VOID_CLOSEDIR
4054 PerlDir_close(IoDIRP(io));
4056 if (PerlDir_close(IoDIRP(io)) < 0) {
4057 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4066 SETERRNO(EBADF,RMS_IFI);
4069 DIE(aTHX_ PL_no_dir_func, "closedir");
4073 /* Process control. */
4083 PERL_FLUSHALL_FOR_CHILD;
4084 childpid = PerlProc_fork();
4089 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4090 SvREADONLY_off(GvSV(tmpgv));
4091 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4092 SvREADONLY_on(GvSV(tmpgv));
4094 #ifdef THREADS_HAVE_PIDS
4095 PL_ppid = (IV)getppid();
4097 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4102 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4107 PERL_FLUSHALL_FOR_CHILD;
4108 childpid = PerlProc_fork();
4114 DIE(aTHX_ PL_no_func, "fork");
4121 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4126 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4127 childpid = wait4pid(-1, &argflags, 0);
4129 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4134 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4135 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4136 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4138 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4143 DIE(aTHX_ PL_no_func, "wait");
4149 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4158 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4159 result = wait4pid(pid, &argflags, optype);
4161 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4166 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4167 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4168 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4170 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4175 DIE(aTHX_ PL_no_func, "waitpid");
4181 dSP; dMARK; dORIGMARK; dTARGET;
4188 while (++MARK <= SP) {
4189 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4194 TAINT_PROPER("system");
4196 PERL_FLUSHALL_FOR_CHILD;
4197 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4203 if (PerlProc_pipe(pp) >= 0)
4205 while ((childpid = PerlProc_fork()) == -1) {
4206 if (errno != EAGAIN) {
4211 PerlLIO_close(pp[0]);
4212 PerlLIO_close(pp[1]);
4219 Sigsave_t ihand,qhand; /* place to save signals during system() */
4223 PerlLIO_close(pp[1]);
4225 rsignal_save(SIGINT, SIG_IGN, &ihand);
4226 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4229 result = wait4pid(childpid, &status, 0);
4230 } while (result == -1 && errno == EINTR);
4232 (void)rsignal_restore(SIGINT, &ihand);
4233 (void)rsignal_restore(SIGQUIT, &qhand);
4235 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4236 do_execfree(); /* free any memory child malloced on fork */
4242 while (n < sizeof(int)) {
4243 n1 = PerlLIO_read(pp[0],
4244 (void*)(((char*)&errkid)+n),
4250 PerlLIO_close(pp[0]);
4251 if (n) { /* Error */
4252 if (n != sizeof(int))
4253 DIE(aTHX_ "panic: kid popen errno read");
4254 errno = errkid; /* Propagate errno from kid */
4255 STATUS_CURRENT = -1;
4258 PUSHi(STATUS_CURRENT);
4262 PerlLIO_close(pp[0]);
4263 #if defined(HAS_FCNTL) && defined(F_SETFD)
4264 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4267 if (PL_op->op_flags & OPf_STACKED) {
4268 SV *really = *++MARK;
4269 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4271 else if (SP - MARK != 1)
4272 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4274 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4278 #else /* ! FORK or VMS or OS/2 */
4281 if (PL_op->op_flags & OPf_STACKED) {
4282 SV *really = *++MARK;
4283 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4284 value = (I32)do_aspawn(really, MARK, SP);
4286 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4289 else if (SP - MARK != 1) {
4290 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4291 value = (I32)do_aspawn(Nullsv, MARK, SP);
4293 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4297 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4299 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4301 STATUS_NATIVE_SET(value);
4304 PUSHi(result ? value : STATUS_CURRENT);
4305 #endif /* !FORK or VMS */
4311 dSP; dMARK; dORIGMARK; dTARGET;
4317 while (++MARK <= SP) {
4318 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4323 TAINT_PROPER("exec");
4325 PERL_FLUSHALL_FOR_CHILD;
4326 if (PL_op->op_flags & OPf_STACKED) {
4327 SV *really = *++MARK;
4328 value = (I32)do_aexec(really, MARK, SP);
4330 else if (SP - MARK != 1)
4332 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4336 (void ) do_aspawn(Nullsv, MARK, SP);
4340 value = (I32)do_aexec(Nullsv, MARK, SP);
4345 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4348 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4351 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4364 dSP; dMARK; dTARGET;
4366 value = (I32)apply(PL_op->op_type, MARK, SP);
4371 DIE(aTHX_ PL_no_func, "kill");
4379 # ifdef THREADS_HAVE_PIDS
4381 IV cur_ppid = getppid();
4383 /* maybe the parent process has died. Refresh ppid cache */
4388 XPUSHi( getppid() );
4392 DIE(aTHX_ PL_no_func, "getppid");
4408 pgrp = (I32)BSD_GETPGRP(pid);
4410 if (pid != 0 && pid != PerlProc_getpid())
4411 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4417 DIE(aTHX_ PL_no_func, "getpgrp()");
4436 TAINT_PROPER("setpgrp");
4438 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4440 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4441 || (pid != 0 && pid != PerlProc_getpid()))
4443 DIE(aTHX_ "setpgrp can't take arguments");
4445 SETi( setpgrp() >= 0 );
4446 #endif /* USE_BSDPGRP */
4449 DIE(aTHX_ PL_no_func, "setpgrp()");
4455 #ifdef HAS_GETPRIORITY
4459 SETi( getpriority(which, who) );
4462 DIE(aTHX_ PL_no_func, "getpriority()");
4468 #ifdef HAS_SETPRIORITY
4473 TAINT_PROPER("setpriority");
4474 SETi( setpriority(which, who, niceval) >= 0 );
4477 DIE(aTHX_ PL_no_func, "setpriority()");
4487 XPUSHn( time(Null(Time_t*)) );
4489 XPUSHi( time(Null(Time_t*)) );
4500 (void)PerlProc_times(&PL_timesbuf);
4502 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4503 /* struct tms, though same data */
4507 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4508 if (GIMME == G_ARRAY) {
4509 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4510 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4511 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4517 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4519 if (GIMME == G_ARRAY) {
4520 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4521 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4522 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4526 DIE(aTHX_ "times not implemented");
4528 #endif /* HAS_TIMES */
4540 const struct tm *tmbuf;
4541 static const char * const dayname[] =
4542 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4543 static const char * const monname[] =
4544 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4545 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4551 when = (Time_t)SvNVx(POPs);
4553 when = (Time_t)SvIVx(POPs);
4556 if (PL_op->op_type == OP_LOCALTIME)
4557 tmbuf = localtime(&when);
4559 tmbuf = gmtime(&when);
4561 if (GIMME != G_ARRAY) {
4567 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4568 dayname[tmbuf->tm_wday],
4569 monname[tmbuf->tm_mon],
4574 tmbuf->tm_year + 1900);
4575 PUSHs(sv_2mortal(tsv));
4580 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4581 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4582 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4583 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4584 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4585 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4586 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4587 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4588 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4599 anum = alarm((unsigned int)anum);
4606 DIE(aTHX_ PL_no_func, "alarm");
4617 (void)time(&lasttime);
4622 PerlProc_sleep((unsigned int)duration);
4625 XPUSHi(when - lasttime);
4629 /* Shared memory. */
4643 return pp_shmwrite();
4648 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4649 dSP; dMARK; dTARGET;
4650 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4659 /* Message passing. */
4673 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4674 dSP; dMARK; dTARGET;
4675 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4686 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4687 dSP; dMARK; dTARGET;
4688 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4701 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4702 dSP; dMARK; dTARGET;
4703 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4710 DIE(aTHX_ "System V IPC is not implemented on this machine");
4716 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4717 dSP; dMARK; dTARGET;
4718 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4726 PUSHp(zero_but_true, ZBTLEN);
4736 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4737 dSP; dMARK; dTARGET;
4738 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4747 /* Get system info. */
4751 #ifdef HAS_GETHOSTBYNAME
4752 return pp_ghostent();
4754 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4760 #ifdef HAS_GETHOSTBYADDR
4761 return pp_ghostent();
4763 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4769 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4771 I32 which = PL_op->op_type;
4772 register char **elem;
4774 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4775 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4776 struct hostent *gethostbyname(Netdb_name_t);
4777 struct hostent *gethostent(void);
4779 struct hostent *hent;
4784 if (which == OP_GHBYNAME) {
4785 #ifdef HAS_GETHOSTBYNAME
4786 char* name = POPpbytex;
4787 hent = PerlSock_gethostbyname(name);
4789 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4792 else if (which == OP_GHBYADDR) {
4793 #ifdef HAS_GETHOSTBYADDR
4794 int addrtype = POPi;
4797 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4799 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4801 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4805 #ifdef HAS_GETHOSTENT
4806 hent = PerlSock_gethostent();
4808 DIE(aTHX_ PL_no_sock_func, "gethostent");
4811 #ifdef HOST_NOT_FOUND
4813 #ifdef USE_REENTRANT_API
4814 # ifdef USE_GETHOSTENT_ERRNO
4815 h_errno = PL_reentrant_buffer->_gethostent_errno;
4818 STATUS_NATIVE_SET(h_errno);
4822 if (GIMME != G_ARRAY) {
4823 PUSHs(sv = sv_newmortal());
4825 if (which == OP_GHBYNAME) {
4827 sv_setpvn(sv, hent->h_addr, hent->h_length);
4830 sv_setpv(sv, (char*)hent->h_name);
4836 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4837 sv_setpv(sv, (char*)hent->h_name);
4838 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4839 for (elem = hent->h_aliases; elem && *elem; elem++) {
4840 sv_catpv(sv, *elem);
4842 sv_catpvn(sv, " ", 1);
4844 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4845 sv_setiv(sv, (IV)hent->h_addrtype);
4846 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4847 len = hent->h_length;
4848 sv_setiv(sv, (IV)len);
4850 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4851 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4852 sv_setpvn(sv, *elem, len);
4855 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4857 sv_setpvn(sv, hent->h_addr, len);
4862 DIE(aTHX_ PL_no_sock_func, "gethostent");
4868 #ifdef HAS_GETNETBYNAME
4869 return pp_gnetent();
4871 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4877 #ifdef HAS_GETNETBYADDR
4878 return pp_gnetent();
4880 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4886 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4888 I32 which = PL_op->op_type;
4889 register char **elem;
4891 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4892 struct netent *getnetbyaddr(Netdb_net_t, int);
4893 struct netent *getnetbyname(Netdb_name_t);
4894 struct netent *getnetent(void);
4896 struct netent *nent;
4899 if (which == OP_GNBYNAME){
4900 #ifdef HAS_GETNETBYNAME
4901 char *name = POPpbytex;
4902 nent = PerlSock_getnetbyname(name);
4904 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4907 else if (which == OP_GNBYADDR) {
4908 #ifdef HAS_GETNETBYADDR
4909 int addrtype = POPi;
4910 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4911 nent = PerlSock_getnetbyaddr(addr, addrtype);
4913 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4917 #ifdef HAS_GETNETENT
4918 nent = PerlSock_getnetent();
4920 DIE(aTHX_ PL_no_sock_func, "getnetent");
4923 #ifdef HOST_NOT_FOUND
4925 #ifdef USE_REENTRANT_API
4926 # ifdef USE_GETNETENT_ERRNO
4927 h_errno = PL_reentrant_buffer->_getnetent_errno;
4930 STATUS_NATIVE_SET(h_errno);
4935 if (GIMME != G_ARRAY) {
4936 PUSHs(sv = sv_newmortal());
4938 if (which == OP_GNBYNAME)
4939 sv_setiv(sv, (IV)nent->n_net);
4941 sv_setpv(sv, nent->n_name);
4947 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4948 sv_setpv(sv, nent->n_name);
4949 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4950 for (elem = nent->n_aliases; elem && *elem; elem++) {
4951 sv_catpv(sv, *elem);
4953 sv_catpvn(sv, " ", 1);
4955 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4956 sv_setiv(sv, (IV)nent->n_addrtype);
4957 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4958 sv_setiv(sv, (IV)nent->n_net);
4963 DIE(aTHX_ PL_no_sock_func, "getnetent");
4969 #ifdef HAS_GETPROTOBYNAME
4970 return pp_gprotoent();
4972 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4978 #ifdef HAS_GETPROTOBYNUMBER
4979 return pp_gprotoent();
4981 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4987 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4989 I32 which = PL_op->op_type;
4990 register char **elem;
4992 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4993 struct protoent *getprotobyname(Netdb_name_t);
4994 struct protoent *getprotobynumber(int);
4995 struct protoent *getprotoent(void);
4997 struct protoent *pent;
5000 if (which == OP_GPBYNAME) {
5001 #ifdef HAS_GETPROTOBYNAME
5002 char* name = POPpbytex;
5003 pent = PerlSock_getprotobyname(name);
5005 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
5008 else if (which == OP_GPBYNUMBER) {
5009 #ifdef HAS_GETPROTOBYNUMBER
5011 pent = PerlSock_getprotobynumber(number);
5013 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5017 #ifdef HAS_GETPROTOENT
5018 pent = PerlSock_getprotoent();
5020 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5024 if (GIMME != G_ARRAY) {
5025 PUSHs(sv = sv_newmortal());
5027 if (which == OP_GPBYNAME)
5028 sv_setiv(sv, (IV)pent->p_proto);
5030 sv_setpv(sv, pent->p_name);
5036 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5037 sv_setpv(sv, pent->p_name);
5038 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5039 for (elem = pent->p_aliases; elem && *elem; elem++) {
5040 sv_catpv(sv, *elem);
5042 sv_catpvn(sv, " ", 1);
5044 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5045 sv_setiv(sv, (IV)pent->p_proto);
5050 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5056 #ifdef HAS_GETSERVBYNAME
5057 return pp_gservent();
5059 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5065 #ifdef HAS_GETSERVBYPORT
5066 return pp_gservent();
5068 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5074 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5076 I32 which = PL_op->op_type;
5077 register char **elem;
5079 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5080 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5081 struct servent *getservbyport(int, Netdb_name_t);
5082 struct servent *getservent(void);
5084 struct servent *sent;
5087 if (which == OP_GSBYNAME) {
5088 #ifdef HAS_GETSERVBYNAME
5089 char *proto = POPpbytex;
5090 char *name = POPpbytex;
5092 if (proto && !*proto)
5095 sent = PerlSock_getservbyname(name, proto);
5097 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5100 else if (which == OP_GSBYPORT) {
5101 #ifdef HAS_GETSERVBYPORT
5102 char *proto = POPpbytex;
5103 unsigned short port = (unsigned short)POPu;
5105 if (proto && !*proto)
5109 port = PerlSock_htons(port);
5111 sent = PerlSock_getservbyport(port, proto);
5113 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5117 #ifdef HAS_GETSERVENT
5118 sent = PerlSock_getservent();
5120 DIE(aTHX_ PL_no_sock_func, "getservent");
5124 if (GIMME != G_ARRAY) {
5125 PUSHs(sv = sv_newmortal());
5127 if (which == OP_GSBYNAME) {
5129 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5131 sv_setiv(sv, (IV)(sent->s_port));
5135 sv_setpv(sv, sent->s_name);
5141 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5142 sv_setpv(sv, sent->s_name);
5143 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5144 for (elem = sent->s_aliases; elem && *elem; elem++) {
5145 sv_catpv(sv, *elem);
5147 sv_catpvn(sv, " ", 1);
5149 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5151 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5153 sv_setiv(sv, (IV)(sent->s_port));
5155 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5156 sv_setpv(sv, sent->s_proto);
5161 DIE(aTHX_ PL_no_sock_func, "getservent");
5167 #ifdef HAS_SETHOSTENT
5169 PerlSock_sethostent(TOPi);
5172 DIE(aTHX_ PL_no_sock_func, "sethostent");
5178 #ifdef HAS_SETNETENT
5180 PerlSock_setnetent(TOPi);
5183 DIE(aTHX_ PL_no_sock_func, "setnetent");
5189 #ifdef HAS_SETPROTOENT
5191 PerlSock_setprotoent(TOPi);
5194 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5200 #ifdef HAS_SETSERVENT
5202 PerlSock_setservent(TOPi);
5205 DIE(aTHX_ PL_no_sock_func, "setservent");
5211 #ifdef HAS_ENDHOSTENT
5213 PerlSock_endhostent();
5217 DIE(aTHX_ PL_no_sock_func, "endhostent");
5223 #ifdef HAS_ENDNETENT
5225 PerlSock_endnetent();
5229 DIE(aTHX_ PL_no_sock_func, "endnetent");
5235 #ifdef HAS_ENDPROTOENT
5237 PerlSock_endprotoent();
5241 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5247 #ifdef HAS_ENDSERVENT
5249 PerlSock_endservent();
5253 DIE(aTHX_ PL_no_sock_func, "endservent");
5262 DIE(aTHX_ PL_no_func, "getpwnam");
5271 DIE(aTHX_ PL_no_func, "getpwuid");
5279 I32 which = PL_op->op_type;
5282 struct passwd *pwent = NULL;
5284 * We currently support only the SysV getsp* shadow password interface.
5285 * The interface is declared in <shadow.h> and often one needs to link
5286 * with -lsecurity or some such.
5287 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5290 * AIX getpwnam() is clever enough to return the encrypted password
5291 * only if the caller (euid?) is root.
5293 * There are at least three other shadow password APIs. Many platforms
5294 * seem to contain more than one interface for accessing the shadow
5295 * password databases, possibly for compatibility reasons.
5296 * The getsp*() is by far he simplest one, the other two interfaces
5297 * are much more complicated, but also very similar to each other.
5302 * struct pr_passwd *getprpw*();
5303 * The password is in
5304 * char getprpw*(...).ufld.fd_encrypt[]
5305 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5310 * struct es_passwd *getespw*();
5311 * The password is in
5312 * char *(getespw*(...).ufld.fd_encrypt)
5313 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5316 * struct userpw *getuserpw();
5317 * The password is in
5318 * char *(getuserpw(...)).spw_upw_passwd
5319 * (but the de facto standard getpwnam() should work okay)
5321 * Mention I_PROT here so that Configure probes for it.
5323 * In HP-UX for getprpw*() the manual page claims that one should include
5324 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5325 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5326 * and pp_sys.c already includes <shadow.h> if there is such.
5328 * Note that <sys/security.h> is already probed for, but currently
5329 * it is only included in special cases.
5331 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5332 * be preferred interface, even though also the getprpw*() interface
5333 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5334 * One also needs to call set_auth_parameters() in main() before
5335 * doing anything else, whether one is using getespw*() or getprpw*().
5337 * Note that accessing the shadow databases can be magnitudes
5338 * slower than accessing the standard databases.
5343 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5344 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5345 * the pw_comment is left uninitialized. */
5346 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5352 char* name = POPpbytex;
5353 pwent = getpwnam(name);
5359 pwent = getpwuid(uid);
5363 # ifdef HAS_GETPWENT
5365 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5366 if (pwent) pwent = getpwnam(pwent->pw_name);
5369 DIE(aTHX_ PL_no_func, "getpwent");
5375 if (GIMME != G_ARRAY) {
5376 PUSHs(sv = sv_newmortal());
5378 if (which == OP_GPWNAM)
5379 # if Uid_t_sign <= 0
5380 sv_setiv(sv, (IV)pwent->pw_uid);
5382 sv_setuv(sv, (UV)pwent->pw_uid);
5385 sv_setpv(sv, pwent->pw_name);
5391 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5392 sv_setpv(sv, pwent->pw_name);
5394 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5396 /* If we have getspnam(), we try to dig up the shadow
5397 * password. If we are underprivileged, the shadow
5398 * interface will set the errno to EACCES or similar,
5399 * and return a null pointer. If this happens, we will
5400 * use the dummy password (usually "*" or "x") from the
5401 * standard password database.
5403 * In theory we could skip the shadow call completely
5404 * if euid != 0 but in practice we cannot know which
5405 * security measures are guarding the shadow databases
5406 * on a random platform.
5408 * Resist the urge to use additional shadow interfaces.
5409 * Divert the urge to writing an extension instead.
5412 /* Some AIX setups falsely(?) detect some getspnam(), which
5413 * has a different API than the Solaris/IRIX one. */
5414 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5416 struct spwd *spwent;
5417 int saverrno; /* Save and restore errno so that
5418 * underprivileged attempts seem
5419 * to have never made the unsccessful
5420 * attempt to retrieve the shadow password. */
5423 spwent = getspnam(pwent->pw_name);
5425 if (spwent && spwent->sp_pwdp)
5426 sv_setpv(sv, spwent->sp_pwdp);
5430 if (!SvPOK(sv)) /* Use the standard password, then. */
5431 sv_setpv(sv, pwent->pw_passwd);
5434 # ifndef INCOMPLETE_TAINTS
5435 /* passwd is tainted because user himself can diddle with it.
5436 * admittedly not much and in a very limited way, but nevertheless. */
5440 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5441 # if Uid_t_sign <= 0
5442 sv_setiv(sv, (IV)pwent->pw_uid);
5444 sv_setuv(sv, (UV)pwent->pw_uid);
5447 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5448 # if Uid_t_sign <= 0
5449 sv_setiv(sv, (IV)pwent->pw_gid);
5451 sv_setuv(sv, (UV)pwent->pw_gid);
5453 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5454 * because of the poor interface of the Perl getpw*(),
5455 * not because there's some standard/convention saying so.
5456 * A better interface would have been to return a hash,
5457 * but we are accursed by our history, alas. --jhi. */
5458 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5460 sv_setiv(sv, (IV)pwent->pw_change);
5463 sv_setiv(sv, (IV)pwent->pw_quota);
5466 sv_setpv(sv, pwent->pw_age);
5471 /* pw_class and pw_comment are mutually exclusive--.
5472 * see the above note for pw_change, pw_quota, and pw_age. */
5473 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5475 sv_setpv(sv, pwent->pw_class);
5478 sv_setpv(sv, pwent->pw_comment);
5482 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5484 sv_setpv(sv, pwent->pw_gecos);
5486 # ifndef INCOMPLETE_TAINTS
5487 /* pw_gecos is tainted because user himself can diddle with it. */
5491 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5492 sv_setpv(sv, pwent->pw_dir);
5494 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5495 sv_setpv(sv, pwent->pw_shell);
5496 # ifndef INCOMPLETE_TAINTS
5497 /* pw_shell is tainted because user himself can diddle with it. */
5502 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5503 sv_setiv(sv, (IV)pwent->pw_expire);
5508 DIE(aTHX_ PL_no_func, "getpwent");
5514 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5519 DIE(aTHX_ PL_no_func, "setpwent");
5525 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5530 DIE(aTHX_ PL_no_func, "endpwent");
5539 DIE(aTHX_ PL_no_func, "getgrnam");
5548 DIE(aTHX_ PL_no_func, "getgrgid");
5556 I32 which = PL_op->op_type;
5557 register char **elem;
5559 struct group *grent;
5562 if (which == OP_GGRNAM) {
5563 char* name = POPpbytex;
5564 grent = (struct group *)getgrnam(name);
5566 else if (which == OP_GGRGID) {
5568 grent = (struct group *)getgrgid(gid);
5572 grent = (struct group *)getgrent();
5574 DIE(aTHX_ PL_no_func, "getgrent");
5578 if (GIMME != G_ARRAY) {
5579 PUSHs(sv = sv_newmortal());
5581 if (which == OP_GGRNAM)
5582 sv_setiv(sv, (IV)grent->gr_gid);
5584 sv_setpv(sv, grent->gr_name);
5590 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5591 sv_setpv(sv, grent->gr_name);
5593 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5595 sv_setpv(sv, grent->gr_passwd);
5598 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5599 sv_setiv(sv, (IV)grent->gr_gid);
5601 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5602 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5603 /* In UNICOS/mk (_CRAYMPP) the multithreading
5604 * versions (getgrnam_r, getgrgid_r)
5605 * seem to return an illegal pointer
5606 * as the group members list, gr_mem.
5607 * getgrent() doesn't even have a _r version
5608 * but the gr_mem is poisonous anyway.
5609 * So yes, you cannot get the list of group
5610 * members if building multithreaded in UNICOS/mk. */
5611 for (elem = grent->gr_mem; elem && *elem; elem++) {
5612 sv_catpv(sv, *elem);
5614 sv_catpvn(sv, " ", 1);
5621 DIE(aTHX_ PL_no_func, "getgrent");
5627 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5632 DIE(aTHX_ PL_no_func, "setgrent");
5638 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5643 DIE(aTHX_ PL_no_func, "endgrent");
5653 if (!(tmps = PerlProc_getlogin()))
5655 PUSHp(tmps, strlen(tmps));
5658 DIE(aTHX_ PL_no_func, "getlogin");
5662 /* Miscellaneous. */
5667 dSP; dMARK; dORIGMARK; dTARGET;
5668 register I32 items = SP - MARK;
5669 unsigned long a[20];
5675 while (++MARK <= SP) {
5676 if (SvTAINTED(*MARK)) {
5682 TAINT_PROPER("syscall");
5685 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5686 * or where sizeof(long) != sizeof(char*). But such machines will
5687 * not likely have syscall implemented either, so who cares?
5689 while (++MARK <= SP) {
5690 if (SvNIOK(*MARK) || !i)
5691 a[i++] = SvIV(*MARK);
5692 else if (*MARK == &PL_sv_undef)
5695 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5701 DIE(aTHX_ "Too many args to syscall");
5703 DIE(aTHX_ "Too few args to syscall");
5705 retval = syscall(a[0]);
5708 retval = syscall(a[0],a[1]);
5711 retval = syscall(a[0],a[1],a[2]);
5714 retval = syscall(a[0],a[1],a[2],a[3]);
5717 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5720 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5723 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5726 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5730 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5736 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5740 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5744 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5748 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5749 a[10],a[11],a[12],a[13]);
5751 #endif /* atarist */
5757 DIE(aTHX_ PL_no_func, "syscall");
5761 #ifdef FCNTL_EMULATE_FLOCK
5763 /* XXX Emulate flock() with fcntl().
5764 What's really needed is a good file locking module.
5768 fcntl_emulate_flock(int fd, int operation)
5772 switch (operation & ~LOCK_NB) {
5774 flock.l_type = F_RDLCK;
5777 flock.l_type = F_WRLCK;
5780 flock.l_type = F_UNLCK;
5786 flock.l_whence = SEEK_SET;
5787 flock.l_start = flock.l_len = (Off_t)0;
5789 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5792 #endif /* FCNTL_EMULATE_FLOCK */
5794 #ifdef LOCKF_EMULATE_FLOCK
5796 /* XXX Emulate flock() with lockf(). This is just to increase
5797 portability of scripts. The calls are not completely
5798 interchangeable. What's really needed is a good file
5802 /* The lockf() constants might have been defined in <unistd.h>.
5803 Unfortunately, <unistd.h> causes troubles on some mixed
5804 (BSD/POSIX) systems, such as SunOS 4.1.3.
5806 Further, the lockf() constants aren't POSIX, so they might not be
5807 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5808 just stick in the SVID values and be done with it. Sigh.
5812 # define F_ULOCK 0 /* Unlock a previously locked region */
5815 # define F_LOCK 1 /* Lock a region for exclusive use */
5818 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5821 # define F_TEST 3 /* Test a region for other processes locks */
5825 lockf_emulate_flock(int fd, int operation)
5831 /* flock locks entire file so for lockf we need to do the same */
5833 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5834 if (pos > 0) /* is seekable and needs to be repositioned */
5835 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5836 pos = -1; /* seek failed, so don't seek back afterwards */
5839 switch (operation) {
5841 /* LOCK_SH - get a shared lock */
5843 /* LOCK_EX - get an exclusive lock */
5845 i = lockf (fd, F_LOCK, 0);
5848 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5849 case LOCK_SH|LOCK_NB:
5850 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5851 case LOCK_EX|LOCK_NB:
5852 i = lockf (fd, F_TLOCK, 0);
5854 if ((errno == EAGAIN) || (errno == EACCES))
5855 errno = EWOULDBLOCK;
5858 /* LOCK_UN - unlock (non-blocking is a no-op) */
5860 case LOCK_UN|LOCK_NB:
5861 i = lockf (fd, F_ULOCK, 0);
5864 /* Default - can't decipher operation */
5871 if (pos > 0) /* need to restore position of the handle */
5872 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5877 #endif /* LOCKF_EMULATE_FLOCK */
5881 * c-indentation-style: bsd
5883 * indent-tabs-mode: t
5886 * ex: set ts=8 sts=4 sw=4 noet: