3 * Copyright (C) 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * But only a short way ahead its floor and the walls on either side were
13 * cloven by a great fissure, out of which the red glare came, now leaping
14 * up, now dying down into darkness; and all the while far below there was
15 * a rumour and a trouble as of great engines throbbing and labouring.
18 /* This file contains system pp ("push/pop") functions that
19 * execute the opcodes that make up a perl program. A typical pp function
20 * expects to find its arguments on the stack, and usually pushes its
21 * results onto the stack, hence the 'pp' terminology. Each OP structure
22 * contains a pointer to the relevant pp_foo() function.
24 * By 'system', we mean ops which interact with the OS, such as pp_open().
28 #define PERL_IN_PP_SYS_C
32 /* Shadow password support for solaris - pdo@cs.umd.edu
33 * Not just Solaris: at least HP-UX, IRIX, Linux.
34 * The API is from SysV.
36 * There are at least two more shadow interfaces,
37 * see the comments in pp_gpwent().
41 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
42 * and another MAXINT from "perl.h" <- <sys/param.h>. */
49 # include <sys/wait.h>
53 # include <sys/resource.h>
62 # include <sys/select.h>
66 /* XXX Configure test needed.
67 h_errno might not be a simple 'int', especially for multi-threaded
68 applications, see "extern int errno in perl.h". Creating such
69 a test requires taking into account the differences between
70 compiling multithreaded and singlethreaded ($ccflags et al).
71 HOST_NOT_FOUND is typically defined in <netdb.h>.
73 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
82 struct passwd *getpwnam (char *);
83 struct passwd *getpwuid (Uid_t);
88 struct passwd *getpwent (void);
89 #elif defined (VMS) && defined (my_getpwent)
90 struct passwd *Perl_my_getpwent (void);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
201 #undef PERL_EFF_ACCESS_W_OK
202 #undef PERL_EFF_ACCESS_X_OK
204 /* F_OK unused: if stat() cannot find it... */
206 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
207 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
208 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
209 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
210 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
213 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
214 # ifdef I_SYS_SECURITY
215 # include <sys/security.h>
219 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
220 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
221 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
224 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
225 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
226 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
230 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
232 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
233 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
234 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
242 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
244 Uid_t ruid = getuid();
245 Uid_t euid = geteuid();
246 Gid_t rgid = getgid();
247 Gid_t egid = getegid();
251 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
252 Perl_croak(aTHX_ "switching effective uid is not implemented");
255 if (setreuid(euid, ruid))
258 if (setresuid(euid, ruid, (Uid_t)-1))
261 Perl_croak(aTHX_ "entering effective uid failed");
264 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
265 Perl_croak(aTHX_ "switching effective gid is not implemented");
268 if (setregid(egid, rgid))
271 if (setresgid(egid, rgid, (Gid_t)-1))
274 Perl_croak(aTHX_ "entering effective gid failed");
277 res = access(path, mode);
280 if (setreuid(ruid, euid))
283 if (setresuid(ruid, euid, (Uid_t)-1))
286 Perl_croak(aTHX_ "leaving effective uid failed");
289 if (setregid(rgid, egid))
292 if (setresgid(rgid, egid, (Gid_t)-1))
295 Perl_croak(aTHX_ "leaving effective gid failed");
300 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
301 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
302 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
305 #if !defined(PERL_EFF_ACCESS_R_OK)
306 /* With it or without it: anyway you get a warning: either that
307 it is unused, or it is declared static and never defined.
310 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
314 Perl_croak(aTHX_ "switching effective uid is not implemented");
324 const char *tmps = POPpconstx;
325 const I32 gimme = GIMME_V;
326 const char *mode = "r";
329 if (PL_op->op_private & OPpOPEN_IN_RAW)
331 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
333 fp = PerlProc_popen((char*)tmps, (char *)mode);
335 const char *type = NULL;
336 if (PL_curcop->cop_io) {
337 type = SvPV_nolen_const(PL_curcop->cop_io);
340 PerlIO_apply_layers(aTHX_ fp,mode,type);
342 if (gimme == G_VOID) {
344 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
348 else if (gimme == G_SCALAR) {
351 PL_rs = &PL_sv_undef;
352 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
353 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
365 if (sv_gets(sv, fp, 0) == Nullch) {
369 XPUSHs(sv_2mortal(sv));
370 if (SvLEN(sv) - SvCUR(sv) > 20) {
371 SvPV_shrink_to_cur(sv);
376 STATUS_NATIVE_SET(PerlProc_pclose(fp));
377 TAINT; /* "I believe that this is not gratuitous!" */
380 STATUS_NATIVE_SET(-1);
381 if (gimme == G_SCALAR)
392 tryAMAGICunTARGET(iter, -1);
394 /* Note that we only ever get here if File::Glob fails to load
395 * without at the same time croaking, for some reason, or if
396 * perl was built with PERL_EXTERNAL_GLOB */
403 * The external globbing program may use things we can't control,
404 * so for security reasons we must assume the worst.
407 taint_proper(PL_no_security, "glob");
411 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
412 PL_last_in_gv = (GV*)*PL_stack_sp--;
414 SAVESPTR(PL_rs); /* This is not permanent, either. */
415 PL_rs = sv_2mortal(newSVpvn("\000", 1));
418 *SvPVX(PL_rs) = '\n';
422 result = do_readline();
429 PL_last_in_gv = cGVOP_gv;
430 return do_readline();
439 if (SP - MARK != 1) {
441 do_join(TARG, &PL_sv_no, MARK, SP);
448 tmps = SvPV_const(tmpsv, len);
449 if ((!tmps || !len) && PL_errgv) {
451 SvUPGRADE(error, SVt_PV);
452 if (SvPOK(error) && SvCUR(error))
453 sv_catpv(error, "\t...caught");
455 tmps = SvPV_const(tmpsv, len);
458 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
460 Perl_warn(aTHX_ "%"SVf, tmpsv);
472 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
474 if (SP - MARK != 1) {
476 do_join(TARG, &PL_sv_no, MARK, SP);
478 tmps = SvPV_const(tmpsv, len);
484 tmps = SvROK(tmpsv) ? Nullch : SvPV_const(tmpsv, len);
488 SvUPGRADE(error, SVt_PV);
489 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
491 SvSetSV(error,tmpsv);
492 else if (sv_isobject(error)) {
493 HV *stash = SvSTASH(SvRV(error));
494 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
496 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
497 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
504 call_sv((SV*)GvCV(gv),
505 G_SCALAR|G_EVAL|G_KEEPERR);
506 sv_setsv(error,*PL_stack_sp--);
512 if (SvPOK(error) && SvCUR(error))
513 sv_catpv(error, "\t...propagated");
515 tmps = SvPV_const(tmpsv, len);
519 tmpsv = sv_2mortal(newSVpvn("Died", 4));
521 DIE(aTHX_ "%"SVf, tmpsv);
541 DIE(aTHX_ PL_no_usym, "filehandle");
542 if ((io = GvIOp(gv)))
543 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
545 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
546 /* Method's args are same as ours ... */
547 /* ... except handle is replaced by the object */
548 *MARK-- = SvTIED_obj((SV*)io, mg);
552 call_method("OPEN", G_SCALAR);
565 tmps = SvPV_const(sv, len);
566 ok = do_openn(gv, (char *)tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
569 PUSHi( (I32)PL_forkprocess );
570 else if (PL_forkprocess == 0) /* we are a new child */
589 if (gv && (io = GvIO(gv))
590 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
593 XPUSHs(SvTIED_obj((SV*)io, mg));
596 call_method("CLOSE", G_SCALAR);
602 PUSHs(boolSV(do_close(gv, TRUE)));
622 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
623 DIE(aTHX_ PL_no_usym, "filehandle");
628 do_close(rgv, FALSE);
630 do_close(wgv, FALSE);
632 if (PerlProc_pipe(fd) < 0)
635 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
636 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
637 IoOFP(rstio) = IoIFP(rstio);
638 IoIFP(wstio) = IoOFP(wstio);
639 IoTYPE(rstio) = IoTYPE_RDONLY;
640 IoTYPE(wstio) = IoTYPE_WRONLY;
642 if (!IoIFP(rstio) || !IoOFP(wstio)) {
643 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
644 else PerlLIO_close(fd[0]);
645 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
646 else PerlLIO_close(fd[1]);
649 #if defined(HAS_FCNTL) && defined(F_SETFD)
650 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
651 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
658 DIE(aTHX_ PL_no_func, "pipe");
674 if (gv && (io = GvIO(gv))
675 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
678 XPUSHs(SvTIED_obj((SV*)io, mg));
681 call_method("FILENO", G_SCALAR);
687 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
688 /* Can't do this because people seem to do things like
689 defined(fileno($foo)) to check whether $foo is a valid fh.
690 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
691 report_evil_fh(gv, io, PL_op->op_type);
696 PUSHi(PerlIO_fileno(fp));
708 anum = PerlLIO_umask(0);
709 (void)PerlLIO_umask(anum);
712 anum = PerlLIO_umask(POPi);
713 TAINT_PROPER("umask");
716 /* Only DIE if trying to restrict permissions on "user" (self).
717 * Otherwise it's harmless and more useful to just return undef
718 * since 'group' and 'other' concepts probably don't exist here. */
719 if (MAXARG >= 1 && (POPi & 0700))
720 DIE(aTHX_ "umask not implemented");
721 XPUSHs(&PL_sv_undef);
743 if (gv && (io = GvIO(gv))
744 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
747 XPUSHs(SvTIED_obj((SV*)io, mg));
752 call_method("BINMODE", G_SCALAR);
759 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
760 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
761 report_evil_fh(gv, io, PL_op->op_type);
762 SETERRNO(EBADF,RMS_IFI);
767 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
768 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
769 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
770 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
771 mode_from_discipline(discp),
772 (discp) ? SvPV_nolen_const(discp) : Nullch)) {
793 const I32 markoff = MARK - PL_stack_base;
794 const char *methname;
795 int how = PERL_MAGIC_tied;
799 switch(SvTYPE(varsv)) {
801 methname = "TIEHASH";
802 HvEITER_set((HV *)varsv, 0);
805 methname = "TIEARRAY";
808 #ifdef GV_UNIQUE_CHECK
809 if (GvUNIQUE((GV*)varsv)) {
810 Perl_croak(aTHX_ "Attempt to tie unique GV");
813 methname = "TIEHANDLE";
814 how = PERL_MAGIC_tiedscalar;
815 /* For tied filehandles, we apply tiedscalar magic to the IO
816 slot of the GP rather than the GV itself. AMS 20010812 */
818 GvIOp(varsv) = newIO();
819 varsv = (SV *)GvIOp(varsv);
822 methname = "TIESCALAR";
823 how = PERL_MAGIC_tiedscalar;
827 if (sv_isobject(*MARK)) {
829 PUSHSTACKi(PERLSI_MAGIC);
831 EXTEND(SP,(I32)items);
835 call_method(methname, G_SCALAR);
838 /* Not clear why we don't call call_method here too.
839 * perhaps to get different error message ?
841 stash = gv_stashsv(*MARK, FALSE);
842 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
843 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
847 PUSHSTACKi(PERLSI_MAGIC);
849 EXTEND(SP,(I32)items);
853 call_sv((SV*)GvCV(gv), G_SCALAR);
859 if (sv_isobject(sv)) {
860 sv_unmagic(varsv, how);
861 /* Croak if a self-tie on an aggregate is attempted. */
862 if (varsv == SvRV(sv) &&
863 (SvTYPE(varsv) == SVt_PVAV ||
864 SvTYPE(varsv) == SVt_PVHV))
866 "Self-ties of arrays and hashes are not supported");
867 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
870 SP = PL_stack_base + markoff;
880 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
881 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
883 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
886 if ((mg = SvTIED_mg(sv, how))) {
887 SV *obj = SvRV(SvTIED_obj(sv, mg));
891 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
892 isGV(gv) && (cv = GvCV(gv))) {
894 XPUSHs(SvTIED_obj((SV*)gv, mg));
895 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
898 call_sv((SV *)cv, G_VOID);
902 else if (ckWARN(WARN_UNTIE)) {
903 if (mg && SvREFCNT(obj) > 1)
904 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
905 "untie attempted while %"UVuf" inner references still exist",
906 (UV)SvREFCNT(obj) - 1 ) ;
910 sv_unmagic(sv, how) ;
919 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
920 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
922 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
925 if ((mg = SvTIED_mg(sv, how))) {
926 SV *osv = SvTIED_obj(sv, mg);
927 if (osv == mg->mg_obj)
928 osv = sv_mortalcopy(osv);
946 sv = sv_mortalcopy(&PL_sv_no);
947 sv_setpv(sv, "AnyDBM_File");
948 stash = gv_stashsv(sv, FALSE);
949 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
951 require_pv("AnyDBM_File.pm");
953 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
954 DIE(aTHX_ "No dbm on this machine");
964 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
966 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
969 call_sv((SV*)GvCV(gv), G_SCALAR);
972 if (!sv_isobject(TOPs)) {
977 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
980 call_sv((SV*)GvCV(gv), G_SCALAR);
984 if (sv_isobject(TOPs)) {
985 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
986 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1008 struct timeval timebuf;
1009 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++) {
1028 if (SvOK(sv) && SvREADONLY(sv)) {
1030 sv_force_normal_flags(sv, 0);
1032 DIE(aTHX_ PL_no_modify);
1041 /* little endians can use vecs directly */
1042 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1049 masksize = NFDBITS / NBBY;
1051 masksize = sizeof(long); /* documented int, everyone seems to use long */
1053 Zero(&fd_sets[0], 4, char*);
1056 # if SELECT_MIN_BITS == 1
1057 growsize = sizeof(fd_set);
1059 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1060 # undef SELECT_MIN_BITS
1061 # define SELECT_MIN_BITS __FD_SETSIZE
1063 /* If SELECT_MIN_BITS is greater than one we most probably will want
1064 * to align the sizes with SELECT_MIN_BITS/8 because for example
1065 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1066 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1067 * on (sets/tests/clears bits) is 32 bits. */
1068 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1076 timebuf.tv_sec = (long)value;
1077 value -= (NV)timebuf.tv_sec;
1078 timebuf.tv_usec = (long)(value * 1000000.0);
1081 tbuf = Null(struct timeval*);
1083 for (i = 1; i <= 3; i++) {
1089 else if (!SvPOK(sv))
1090 SvPV_force_nolen(sv); /* force string conversion */
1093 Sv_Grow(sv, growsize);
1097 while (++j <= growsize) {
1101 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1103 New(403, fd_sets[i], growsize, char);
1104 for (offset = 0; offset < growsize; offset += masksize) {
1105 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1106 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1109 fd_sets[i] = SvPVX(sv);
1113 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1114 /* Can't make just the (void*) conditional because that would be
1115 * cpp #if within cpp macro, and not all compilers like that. */
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],
1121 (void*) tbuf); /* Workaround for compiler bug. */
1123 nfound = PerlSock_select(
1125 (Select_fd_set_t) fd_sets[1],
1126 (Select_fd_set_t) fd_sets[2],
1127 (Select_fd_set_t) fd_sets[3],
1130 for (i = 1; i <= 3; i++) {
1133 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1135 for (offset = 0; offset < growsize; offset += masksize) {
1136 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1137 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1139 Safefree(fd_sets[i]);
1146 PUSHs(&PL_sv_undef);
1149 if (GIMME == G_ARRAY && tbuf) {
1150 value = (NV)(timebuf.tv_sec) +
1151 (NV)(timebuf.tv_usec) / 1000000.0;
1152 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1153 sv_setnv(sv, value);
1157 DIE(aTHX_ "select not implemented");
1162 Perl_setdefout(pTHX_ GV *gv)
1165 (void)SvREFCNT_inc(gv);
1167 SvREFCNT_dec(PL_defoutgv);
1177 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1179 egv = GvEGV(PL_defoutgv);
1184 XPUSHs(&PL_sv_undef);
1186 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1187 if (gvp && *gvp == egv) {
1188 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1192 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1197 if (!GvIO(newdefout))
1198 gv_IOadd(newdefout);
1199 setdefout(newdefout);
1217 if (gv && (io = GvIO(gv))
1218 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1220 const I32 gimme = GIMME_V;
1222 XPUSHs(SvTIED_obj((SV*)io, mg));
1225 call_method("GETC", gimme);
1228 if (gimme == G_SCALAR)
1229 SvSetMagicSV_nosteal(TARG, TOPs);
1232 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1233 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1234 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1235 report_evil_fh(gv, io, PL_op->op_type);
1236 SETERRNO(EBADF,RMS_IFI);
1240 sv_setpvn(TARG, " ", 1);
1241 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1242 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1243 /* Find out how many bytes the char needs */
1244 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1247 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1248 SvCUR_set(TARG,1+len);
1258 return pp_sysread();
1262 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1265 register PERL_CONTEXT *cx;
1266 const I32 gimme = GIMME_V;
1271 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1273 cx->blk_sub.retop = retop;
1274 PAD_SET_CUR(CvPADLIST(cv), 1);
1276 setdefout(gv); /* locally select filehandle so $% et al work */
1308 SV * const tmpsv = sv_newmortal();
1310 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1311 name = SvPV_nolen_const(tmpsv);
1313 DIE(aTHX_ "Undefined format \"%s\" called", name);
1315 DIE(aTHX_ "Not a format reference");
1318 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1320 IoFLAGS(io) &= ~IOf_DIDTOP;
1321 return doform(cv,gv,PL_op->op_next);
1327 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1328 register IO *io = GvIOp(gv);
1329 PerlIO *ofp = IoOFP(io);
1333 register PERL_CONTEXT *cx;
1335 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1336 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1339 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1340 PL_formtarget != PL_toptarget)
1344 if (!IoTOP_GV(io)) {
1348 if (!IoTOP_NAME(io)) {
1349 if (!IoFMT_NAME(io))
1350 IoFMT_NAME(io) = savepv(GvNAME(gv));
1351 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1352 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1353 if ((topgv && GvFORM(topgv)) ||
1354 !gv_fetchpv("top",FALSE,SVt_PVFM))
1355 IoTOP_NAME(io) = savesvpv(topname);
1357 IoTOP_NAME(io) = savepvn("top", 3);
1359 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1360 if (!topgv || !GvFORM(topgv)) {
1361 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1364 IoTOP_GV(io) = topgv;
1366 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1367 I32 lines = IoLINES_LEFT(io);
1368 const char *s = SvPVX_const(PL_formtarget);
1369 if (lines <= 0) /* Yow, header didn't even fit!!! */
1371 while (lines-- > 0) {
1372 s = strchr(s, '\n');
1378 const STRLEN save = SvCUR(PL_formtarget);
1379 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1380 do_print(PL_formtarget, ofp);
1381 SvCUR_set(PL_formtarget, save);
1382 sv_chop(PL_formtarget, s);
1383 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1386 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1387 do_print(PL_formfeed, ofp);
1388 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1390 PL_formtarget = PL_toptarget;
1391 IoFLAGS(io) |= IOf_DIDTOP;
1394 DIE(aTHX_ "bad top format reference");
1397 SV * const sv = sv_newmortal();
1399 gv_efullname4(sv, fgv, Nullch, FALSE);
1400 name = SvPV_nolen_const(sv);
1402 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1406 DIE(aTHX_ "Undefined top format called");
1409 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1410 return doform(cv,gv,PL_op);
1414 POPBLOCK(cx,PL_curpm);
1420 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1422 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1423 else if (ckWARN(WARN_CLOSED))
1424 report_evil_fh(gv, io, PL_op->op_type);
1429 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1430 if (ckWARN(WARN_IO))
1431 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1433 if (!do_print(PL_formtarget, fp))
1436 FmLINES(PL_formtarget) = 0;
1437 SvCUR_set(PL_formtarget, 0);
1438 *SvEND(PL_formtarget) = '\0';
1439 if (IoFLAGS(io) & IOf_FLUSH)
1440 (void)PerlIO_flush(fp);
1445 PL_formtarget = PL_bodytarget;
1447 return cx->blk_sub.retop;
1452 dVAR; dSP; dMARK; dORIGMARK;
1459 if (PL_op->op_flags & OPf_STACKED)
1464 if (gv && (io = GvIO(gv))
1465 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1467 if (MARK == ORIGMARK) {
1470 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1474 *MARK = SvTIED_obj((SV*)io, mg);
1477 call_method("PRINTF", G_SCALAR);
1480 MARK = ORIGMARK + 1;
1487 if (!(io = GvIO(gv))) {
1488 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1489 report_evil_fh(gv, io, PL_op->op_type);
1490 SETERRNO(EBADF,RMS_IFI);
1493 else if (!(fp = IoOFP(io))) {
1494 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1496 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1497 else if (ckWARN(WARN_CLOSED))
1498 report_evil_fh(gv, io, PL_op->op_type);
1500 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1504 do_sprintf(sv, SP - MARK, MARK + 1);
1505 if (!do_print(sv, fp))
1508 if (IoFLAGS(io) & IOf_FLUSH)
1509 if (PerlIO_flush(fp) == EOF)
1520 PUSHs(&PL_sv_undef);
1531 const int perm = (MAXARG > 3) ? POPi : 0666;
1532 const int mode = POPi;
1537 /* Need TIEHANDLE method ? */
1539 tmps = SvPV_const(sv, len);
1540 /* FIXME? do_open should do const */
1541 if (do_open(gv, (char*)tmps, len, TRUE, mode, perm, Nullfp)) {
1542 IoLINES(GvIOp(gv)) = 0;
1546 PUSHs(&PL_sv_undef);
1553 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1560 Sock_size_t bufsize;
1569 bool charstart = FALSE;
1570 STRLEN charskip = 0;
1574 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1575 && gv && (io = GvIO(gv))
1576 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1581 *MARK = SvTIED_obj((SV*)io, mg);
1583 call_method("READ", G_SCALAR);
1596 sv_setpvn(bufsv, "", 0);
1597 length = SvIVx(*++MARK);
1600 offset = SvIVx(*++MARK);
1604 if (!io || !IoIFP(io)) {
1605 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1606 report_evil_fh(gv, io, PL_op->op_type);
1607 SETERRNO(EBADF,RMS_IFI);
1610 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1611 buffer = SvPVutf8_force(bufsv, blen);
1612 /* UTF-8 may not have been set if they are all low bytes */
1617 buffer = SvPV_force(bufsv, blen);
1618 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1621 DIE(aTHX_ "Negative length");
1629 if (PL_op->op_type == OP_RECV) {
1630 char namebuf[MAXPATHLEN];
1631 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1632 bufsize = sizeof (struct sockaddr_in);
1634 bufsize = sizeof namebuf;
1636 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1640 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1641 /* 'offset' means 'flags' here */
1642 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1643 (struct sockaddr *)namebuf, &bufsize);
1647 /* Bogus return without padding */
1648 bufsize = sizeof (struct sockaddr_in);
1650 SvCUR_set(bufsv, count);
1651 *SvEND(bufsv) = '\0';
1652 (void)SvPOK_only(bufsv);
1656 /* This should not be marked tainted if the fp is marked clean */
1657 if (!(IoFLAGS(io) & IOf_UNTAINT))
1658 SvTAINTED_on(bufsv);
1660 sv_setpvn(TARG, namebuf, bufsize);
1665 if (PL_op->op_type == OP_RECV)
1666 DIE(aTHX_ PL_no_sock_func, "recv");
1668 if (DO_UTF8(bufsv)) {
1669 /* offset adjust in characters not bytes */
1670 blen = sv_len_utf8(bufsv);
1673 if (-offset > (int)blen)
1674 DIE(aTHX_ "Offset outside string");
1677 if (DO_UTF8(bufsv)) {
1678 /* convert offset-as-chars to offset-as-bytes */
1679 if (offset >= (int)blen)
1680 offset += SvCUR(bufsv) - blen;
1682 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1685 bufsize = SvCUR(bufsv);
1686 /* Allocating length + offset + 1 isn't perfect in the case of reading
1687 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1689 (should be 2 * length + offset + 1, or possibly something longer if
1690 PL_encoding is true) */
1691 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1692 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1693 Zero(buffer+bufsize, offset-bufsize, char);
1695 buffer = buffer + offset;
1697 read_target = bufsv;
1699 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1700 concatenate it to the current buffer. */
1702 /* Truncate the existing buffer to the start of where we will be
1704 SvCUR_set(bufsv, offset);
1706 read_target = sv_newmortal();
1707 SvUPGRADE(read_target, SVt_PV);
1708 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1711 if (PL_op->op_type == OP_SYSREAD) {
1712 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1713 if (IoTYPE(io) == IoTYPE_SOCKET) {
1714 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1720 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1725 #ifdef HAS_SOCKET__bad_code_maybe
1726 if (IoTYPE(io) == IoTYPE_SOCKET) {
1727 char namebuf[MAXPATHLEN];
1728 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1729 bufsize = sizeof (struct sockaddr_in);
1731 bufsize = sizeof namebuf;
1733 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1734 (struct sockaddr *)namebuf, &bufsize);
1739 count = PerlIO_read(IoIFP(io), buffer, length);
1740 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1741 if (count == 0 && PerlIO_error(IoIFP(io)))
1745 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1746 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1749 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1750 *SvEND(read_target) = '\0';
1751 (void)SvPOK_only(read_target);
1752 if (fp_utf8 && !IN_BYTES) {
1753 /* Look at utf8 we got back and count the characters */
1754 const char *bend = buffer + count;
1755 while (buffer < bend) {
1757 skip = UTF8SKIP(buffer);
1760 if (buffer - charskip + skip > bend) {
1761 /* partial character - try for rest of it */
1762 length = skip - (bend-buffer);
1763 offset = bend - SvPVX_const(bufsv);
1775 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1776 provided amount read (count) was what was requested (length)
1778 if (got < wanted && count == length) {
1779 length = wanted - got;
1780 offset = bend - SvPVX_const(bufsv);
1783 /* return value is character count */
1787 else if (buffer_utf8) {
1788 /* Let svcatsv upgrade the bytes we read in to utf8.
1789 The buffer is a mortal so will be freed soon. */
1790 sv_catsv_nomg(bufsv, read_target);
1793 /* This should not be marked tainted if the fp is marked clean */
1794 if (!(IoFLAGS(io) & IOf_UNTAINT))
1795 SvTAINTED_on(bufsv);
1808 const int items = (SP - PL_stack_base) - TOPMARK;
1812 sv = sv_2mortal(newSViv(sv_len(*SP)));
1821 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1832 if (PL_op->op_type == OP_SYSWRITE
1833 && gv && (io = GvIO(gv))
1834 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1839 *MARK = SvTIED_obj((SV*)io, mg);
1841 call_method("WRITE", G_SCALAR);
1852 #if Size_t_size > IVSIZE
1853 length = (Size_t)SvNVx(*++MARK);
1855 length = (Size_t)SvIVx(*++MARK);
1857 if ((SSize_t)length < 0)
1858 DIE(aTHX_ "Negative length");
1861 if (!io || !IoIFP(io)) {
1863 if (ckWARN(WARN_CLOSED))
1864 report_evil_fh(gv, io, PL_op->op_type);
1865 SETERRNO(EBADF,RMS_IFI);
1869 if (PerlIO_isutf8(IoIFP(io))) {
1870 if (!SvUTF8(bufsv)) {
1871 bufsv = sv_2mortal(newSVsv(bufsv));
1872 buffer = sv_2pvutf8(bufsv, &blen);
1874 buffer = SvPV_const(bufsv, blen);
1877 if (DO_UTF8(bufsv)) {
1878 /* Not modifying source SV, so making a temporary copy. */
1879 bufsv = sv_2mortal(newSVsv(bufsv));
1880 sv_utf8_downgrade(bufsv, FALSE);
1882 buffer = SvPV_const(bufsv, blen);
1885 if (PL_op->op_type == OP_SYSWRITE) {
1887 if (DO_UTF8(bufsv)) {
1888 /* length and offset are in chars */
1889 blen = sv_len_utf8(bufsv);
1892 offset = SvIVx(*++MARK);
1894 if (-offset > (IV)blen)
1895 DIE(aTHX_ "Offset outside string");
1897 } else if (offset >= (IV)blen && blen > 0)
1898 DIE(aTHX_ "Offset outside string");
1901 if (length > blen - offset)
1902 length = blen - offset;
1903 if (DO_UTF8(bufsv)) {
1904 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1905 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1908 buffer = buffer+offset;
1910 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1911 if (IoTYPE(io) == IoTYPE_SOCKET) {
1912 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1918 /* See the note at doio.c:do_print about filesize limits. --jhi */
1919 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1924 else if (SP > MARK) {
1926 char * const sockbuf = SvPVx(*++MARK, mlen);
1927 /* length is really flags */
1928 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1929 length, (struct sockaddr *)sockbuf, mlen);
1932 /* length is really flags */
1933 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1936 DIE(aTHX_ PL_no_sock_func, "send");
1942 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1943 #if Size_t_size > IVSIZE
1957 return pp_sysread();
1968 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1970 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1972 if (io && !IoIFP(io)) {
1973 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1975 IoFLAGS(io) &= ~IOf_START;
1976 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1977 sv_setpvn(GvSV(gv), "-", 1);
1978 SvSETMAGIC(GvSV(gv));
1980 else if (!nextargv(gv))
1985 gv = PL_last_in_gv; /* eof */
1988 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1990 if (gv && (io = GvIO(gv))
1991 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1994 XPUSHs(SvTIED_obj((SV*)io, mg));
1997 call_method("EOF", G_SCALAR);
2003 PUSHs(boolSV(!gv || do_eof(gv)));
2017 gv = PL_last_in_gv = (GV*)POPs;
2019 if (gv && (io = GvIO(gv))
2020 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2023 XPUSHs(SvTIED_obj((SV*)io, mg));
2026 call_method("TELL", G_SCALAR);
2032 #if LSEEKSIZE > IVSIZE
2033 PUSHn( do_tell(gv) );
2035 PUSHi( do_tell(gv) );
2042 return pp_sysseek();
2050 const int whence = POPi;
2051 #if LSEEKSIZE > IVSIZE
2052 Off_t offset = (Off_t)SvNVx(POPs);
2054 Off_t offset = (Off_t)SvIVx(POPs);
2058 gv = PL_last_in_gv = (GV*)POPs;
2060 if (gv && (io = GvIO(gv))
2061 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2064 XPUSHs(SvTIED_obj((SV*)io, mg));
2065 #if LSEEKSIZE > IVSIZE
2066 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2068 XPUSHs(sv_2mortal(newSViv(offset)));
2070 XPUSHs(sv_2mortal(newSViv(whence)));
2073 call_method("SEEK", G_SCALAR);
2079 if (PL_op->op_type == OP_SEEK)
2080 PUSHs(boolSV(do_seek(gv, offset, whence)));
2082 Off_t sought = do_sysseek(gv, offset, whence);
2084 PUSHs(&PL_sv_undef);
2087 #if LSEEKSIZE > IVSIZE
2092 : newSVpvn(zero_but_true, ZBTLEN);
2093 PUSHs(sv_2mortal(sv));
2102 /* There seems to be no consensus on the length type of truncate()
2103 * and ftruncate(), both off_t and size_t have supporters. In
2104 * general one would think that when using large files, off_t is
2105 * at least as wide as size_t, so using an off_t should be okay. */
2106 /* XXX Configure probe for the length type of *truncate() needed XXX */
2109 #if Off_t_size > IVSIZE
2114 /* Checking for length < 0 is problematic as the type might or
2115 * might not be signed: if it is not, clever compilers will moan. */
2116 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2123 if (PL_op->op_flags & OPf_SPECIAL) {
2124 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2133 TAINT_PROPER("truncate");
2134 if (!(fp = IoIFP(io))) {
2140 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2142 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_nolen_const(sv);
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 const 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");
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_setpvn(PL_statname, "", 0);
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_nolen_const(sv));
2849 PL_laststype = PL_op->op_type;
2850 if (PL_op->op_type == OP_LSTAT)
2851 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2853 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2854 if (PL_laststatval < 0) {
2855 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2856 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2862 if (gimme != G_ARRAY) {
2863 if (gimme != G_VOID)
2864 XPUSHs(boolSV(max));
2870 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2871 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2872 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2873 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2874 #if Uid_t_size > IVSIZE
2875 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2877 # if Uid_t_sign <= 0
2878 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2880 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2883 #if Gid_t_size > IVSIZE
2884 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2886 # if Gid_t_sign <= 0
2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2889 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2892 #ifdef USE_STAT_RDEV
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2895 PUSHs(sv_2mortal(newSVpvn("", 0)));
2897 #if Off_t_size > IVSIZE
2898 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2900 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2903 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2904 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2905 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2907 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2908 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2909 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2911 #ifdef USE_STAT_BLOCKS
2912 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2913 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2915 PUSHs(sv_2mortal(newSVpvn("", 0)));
2916 PUSHs(sv_2mortal(newSVpvn("", 0)));
2922 /* This macro is used by the stacked filetest operators :
2923 * if the previous filetest failed, short-circuit and pass its value.
2924 * Else, discard it from the stack and continue. --rgs
2926 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2927 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2928 else { (void)POPs; PUTBACK; } \
2935 STACKED_FTEST_CHECK;
2936 #if defined(HAS_ACCESS) && defined(R_OK)
2937 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2938 result = access(POPpx, R_OK);
2953 if (cando(S_IRUSR, 0, &PL_statcache))
2962 STACKED_FTEST_CHECK;
2963 #if defined(HAS_ACCESS) && defined(W_OK)
2964 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2965 result = access(POPpx, W_OK);
2980 if (cando(S_IWUSR, 0, &PL_statcache))
2989 STACKED_FTEST_CHECK;
2990 #if defined(HAS_ACCESS) && defined(X_OK)
2991 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2992 result = access(POPpx, X_OK);
3007 if (cando(S_IXUSR, 0, &PL_statcache))
3016 STACKED_FTEST_CHECK;
3017 #ifdef PERL_EFF_ACCESS_R_OK
3018 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3019 result = PERL_EFF_ACCESS_R_OK(POPpx);
3034 if (cando(S_IRUSR, 1, &PL_statcache))
3043 STACKED_FTEST_CHECK;
3044 #ifdef PERL_EFF_ACCESS_W_OK
3045 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3046 result = PERL_EFF_ACCESS_W_OK(POPpx);
3061 if (cando(S_IWUSR, 1, &PL_statcache))
3070 STACKED_FTEST_CHECK;
3071 #ifdef PERL_EFF_ACCESS_X_OK
3072 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3073 result = PERL_EFF_ACCESS_X_OK(POPpx);
3088 if (cando(S_IXUSR, 1, &PL_statcache))
3097 STACKED_FTEST_CHECK;
3107 return pp_ftrowned();
3114 STACKED_FTEST_CHECK;
3119 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3129 STACKED_FTEST_CHECK;
3134 if (PL_statcache.st_size == 0)
3143 STACKED_FTEST_CHECK;
3148 #if Off_t_size > IVSIZE
3149 PUSHn(PL_statcache.st_size);
3151 PUSHi(PL_statcache.st_size);
3160 STACKED_FTEST_CHECK;
3165 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3173 STACKED_FTEST_CHECK;
3178 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3186 STACKED_FTEST_CHECK;
3191 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3199 STACKED_FTEST_CHECK;
3204 if (S_ISSOCK(PL_statcache.st_mode))
3213 STACKED_FTEST_CHECK;
3218 if (S_ISCHR(PL_statcache.st_mode))
3227 STACKED_FTEST_CHECK;
3232 if (S_ISBLK(PL_statcache.st_mode))
3241 STACKED_FTEST_CHECK;
3246 if (S_ISREG(PL_statcache.st_mode))
3255 STACKED_FTEST_CHECK;
3260 if (S_ISDIR(PL_statcache.st_mode))
3269 STACKED_FTEST_CHECK;
3274 if (S_ISFIFO(PL_statcache.st_mode))
3281 I32 result = my_lstat();
3285 if (S_ISLNK(PL_statcache.st_mode))
3295 STACKED_FTEST_CHECK;
3300 if (PL_statcache.st_mode & S_ISUID)
3311 STACKED_FTEST_CHECK;
3316 if (PL_statcache.st_mode & S_ISGID)
3327 STACKED_FTEST_CHECK;
3332 if (PL_statcache.st_mode & S_ISVTX)
3345 STACKED_FTEST_CHECK;
3347 if (PL_op->op_flags & OPf_REF)
3349 else if (isGV(TOPs))
3351 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3352 gv = (GV*)SvRV(POPs);
3354 gv = gv_fetchsv(tmpsv = POPs, FALSE, SVt_PVIO);
3356 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3357 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3358 else if (tmpsv && SvOK(tmpsv)) {
3359 char *tmps = SvPV_nolen(tmpsv);
3367 if (PerlLIO_isatty(fd))
3372 #if defined(atarist) /* this will work with atariST. Configure will
3373 make guesses for other systems. */
3374 # define FILE_base(f) ((f)->_base)
3375 # define FILE_ptr(f) ((f)->_ptr)
3376 # define FILE_cnt(f) ((f)->_cnt)
3377 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3387 register STDCHAR *s;
3393 STACKED_FTEST_CHECK;
3395 if (PL_op->op_flags & OPf_REF)
3397 else if (isGV(TOPs))
3399 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3400 gv = (GV*)SvRV(POPs);
3406 if (gv == PL_defgv) {
3408 io = GvIO(PL_statgv);
3411 goto really_filename;
3416 PL_laststatval = -1;
3417 sv_setpvn(PL_statname, "", 0);
3418 io = GvIO(PL_statgv);
3420 if (io && IoIFP(io)) {
3421 if (! PerlIO_has_base(IoIFP(io)))
3422 DIE(aTHX_ "-T and -B not implemented on filehandles");
3423 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3424 if (PL_laststatval < 0)
3426 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3427 if (PL_op->op_type == OP_FTTEXT)
3432 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3433 i = PerlIO_getc(IoIFP(io));
3435 (void)PerlIO_ungetc(IoIFP(io),i);
3437 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3439 len = PerlIO_get_bufsiz(IoIFP(io));
3440 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3441 /* sfio can have large buffers - limit to 512 */
3446 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3448 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3450 SETERRNO(EBADF,RMS_IFI);
3458 PL_laststype = OP_STAT;
3459 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3460 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3461 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen(PL_statname), '\n'))
3462 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3465 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3466 if (PL_laststatval < 0) {
3467 (void)PerlIO_close(fp);
3470 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3471 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3472 (void)PerlIO_close(fp);
3474 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3475 RETPUSHNO; /* special case NFS directories */
3476 RETPUSHYES; /* null file is anything */
3481 /* now scan s to look for textiness */
3482 /* XXX ASCII dependent code */
3484 #if defined(DOSISH) || defined(USEMYBINMODE)
3485 /* ignore trailing ^Z on short files */
3486 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3490 for (i = 0; i < len; i++, s++) {
3491 if (!*s) { /* null never allowed in text */
3496 else if (!(isPRINT(*s) || isSPACE(*s)))
3499 else if (*s & 128) {
3501 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3504 /* utf8 characters don't count as odd */
3505 if (UTF8_IS_START(*s)) {
3506 int ulen = UTF8SKIP(s);
3507 if (ulen < len - i) {
3509 for (j = 1; j < ulen; j++) {
3510 if (!UTF8_IS_CONTINUATION(s[j]))
3513 --ulen; /* loop does extra increment */
3523 *s != '\n' && *s != '\r' && *s != '\b' &&
3524 *s != '\t' && *s != '\f' && *s != 27)
3529 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3553 if( !tmps || !*tmps ) {
3554 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3555 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3557 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3562 deprecate("chdir('') or chdir(undef) as chdir()");
3563 tmps = SvPV_nolen_const(*svp);
3567 TAINT_PROPER("chdir");
3572 TAINT_PROPER("chdir");
3573 PUSHi( PerlDir_chdir(tmps) >= 0 );
3575 /* Clear the DEFAULT element of ENV so we'll get the new value
3577 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3585 dSP; dMARK; dTARGET;
3586 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3592 DIE(aTHX_ PL_no_func, "chown");
3601 TAINT_PROPER("chroot");
3602 PUSHi( chroot(tmps) >= 0 );
3605 DIE(aTHX_ PL_no_func, "chroot");
3611 dSP; dMARK; dTARGET;
3613 value = (I32)apply(PL_op->op_type, MARK, SP);
3621 dSP; dMARK; dTARGET;
3623 value = (I32)apply(PL_op->op_type, MARK, SP);
3631 dSP; dMARK; dTARGET;
3633 value = (I32)apply(PL_op->op_type, MARK, SP);
3643 const char *tmps2 = POPpconstx;
3644 const char *tmps = SvPV_nolen_const(TOPs);
3645 TAINT_PROPER("rename");
3647 anum = PerlLIO_rename(tmps, tmps2);
3649 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3650 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3653 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3654 (void)UNLINK(tmps2);
3655 if (!(anum = link(tmps, tmps2)))
3656 anum = UNLINK(tmps);
3668 const char *tmps2 = POPpconstx;
3669 const char *tmps = SvPV_nolen_const(TOPs);
3670 TAINT_PROPER("link");
3671 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3674 DIE(aTHX_ PL_no_func, "link");
3682 const char *tmps2 = POPpconstx;
3683 const char *tmps = SvPV_nolen_const(TOPs);
3684 TAINT_PROPER("symlink");
3685 SETi( symlink(tmps, tmps2) >= 0 );
3688 DIE(aTHX_ PL_no_func, "symlink");
3698 char buf[MAXPATHLEN];
3701 #ifndef INCOMPLETE_TAINTS
3705 len = readlink(tmps, buf, sizeof(buf) - 1);
3713 RETSETUNDEF; /* just pretend it's a normal file */
3717 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3719 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3721 char * const save_filename = filename;
3727 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3728 strcpy(cmdline, cmd);
3729 strcat(cmdline, " ");
3730 for (s = cmdline + strlen(cmdline); *filename; ) {
3735 myfp = PerlProc_popen(cmdline, "r");
3739 SV *tmpsv = sv_newmortal();
3740 /* Need to save/restore 'PL_rs' ?? */
3741 s = sv_gets(tmpsv, myfp, 0);
3742 (void)PerlProc_pclose(myfp);
3746 #ifdef HAS_SYS_ERRLIST
3751 /* you don't see this */
3753 #ifdef HAS_SYS_ERRLIST
3761 if (instr(s, errmsg)) {
3768 #define EACCES EPERM
3770 if (instr(s, "cannot make"))
3771 SETERRNO(EEXIST,RMS_FEX);
3772 else if (instr(s, "existing file"))
3773 SETERRNO(EEXIST,RMS_FEX);
3774 else if (instr(s, "ile exists"))
3775 SETERRNO(EEXIST,RMS_FEX);
3776 else if (instr(s, "non-exist"))
3777 SETERRNO(ENOENT,RMS_FNF);
3778 else if (instr(s, "does not exist"))
3779 SETERRNO(ENOENT,RMS_FNF);
3780 else if (instr(s, "not empty"))
3781 SETERRNO(EBUSY,SS_DEVOFFLINE);
3782 else if (instr(s, "cannot access"))
3783 SETERRNO(EACCES,RMS_PRV);
3785 SETERRNO(EPERM,RMS_PRV);
3788 else { /* some mkdirs return no failure indication */
3789 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3790 if (PL_op->op_type == OP_RMDIR)
3795 SETERRNO(EACCES,RMS_PRV); /* a guess */
3804 /* This macro removes trailing slashes from a directory name.
3805 * Different operating and file systems take differently to
3806 * trailing slashes. According to POSIX 1003.1 1996 Edition
3807 * any number of trailing slashes should be allowed.
3808 * Thusly we snip them away so that even non-conforming
3809 * systems are happy.
3810 * We should probably do this "filtering" for all
3811 * the functions that expect (potentially) directory names:
3812 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3813 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3815 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3816 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3819 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3820 (tmps) = savepvn((tmps), (len)); \
3840 TRIMSLASHES(tmps,len,copy);
3842 TAINT_PROPER("mkdir");
3844 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3846 SETi( dooneliner("mkdir", tmps) );
3847 oldumask = PerlLIO_umask(0);
3848 PerlLIO_umask(oldumask);
3849 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3863 TRIMSLASHES(tmps,len,copy);
3864 TAINT_PROPER("rmdir");
3866 SETi( PerlDir_rmdir(tmps) >= 0 );
3868 SETi( dooneliner("rmdir", tmps) );
3875 /* Directory calls. */
3879 #if defined(Direntry_t) && defined(HAS_READDIR)
3881 const char *dirname = POPpconstx;
3883 register IO *io = GvIOn(gv);
3889 PerlDir_close(IoDIRP(io));
3890 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3896 SETERRNO(EBADF,RMS_DIR);
3899 DIE(aTHX_ PL_no_dir_func, "opendir");
3905 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3906 DIE(aTHX_ PL_no_dir_func, "readdir");
3908 #if !defined(I_DIRENT) && !defined(VMS)
3909 Direntry_t *readdir (DIR *);
3914 const I32 gimme = GIMME;
3915 GV *gv = (GV *)POPs;
3916 register Direntry_t *dp;
3917 register IO *io = GvIOn(gv);
3919 if (!io || !IoDIRP(io))
3923 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3927 sv = newSVpvn(dp->d_name, dp->d_namlen);
3929 sv = newSVpv(dp->d_name, 0);
3931 #ifndef INCOMPLETE_TAINTS
3932 if (!(IoFLAGS(io) & IOf_UNTAINT))
3935 XPUSHs(sv_2mortal(sv));
3937 while (gimme == G_ARRAY);
3939 if (!dp && gimme != G_ARRAY)
3946 SETERRNO(EBADF,RMS_ISI);
3947 if (GIMME == G_ARRAY)
3956 #if defined(HAS_TELLDIR) || defined(telldir)
3958 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3959 /* XXX netbsd still seemed to.
3960 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3961 --JHI 1999-Feb-02 */
3962 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3963 long telldir (DIR *);
3966 register IO *io = GvIOn(gv);
3968 if (!io || !IoDIRP(io))
3971 PUSHi( PerlDir_tell(IoDIRP(io)) );
3975 SETERRNO(EBADF,RMS_ISI);
3978 DIE(aTHX_ PL_no_dir_func, "telldir");
3984 #if defined(HAS_SEEKDIR) || defined(seekdir)
3988 register IO *io = GvIOn(gv);
3990 if (!io || !IoDIRP(io))
3993 (void)PerlDir_seek(IoDIRP(io), along);
3998 SETERRNO(EBADF,RMS_ISI);
4001 DIE(aTHX_ PL_no_dir_func, "seekdir");
4007 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4010 register IO *io = GvIOn(gv);
4012 if (!io || !IoDIRP(io))
4015 (void)PerlDir_rewind(IoDIRP(io));
4019 SETERRNO(EBADF,RMS_ISI);
4022 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4028 #if defined(Direntry_t) && defined(HAS_READDIR)
4031 register IO *io = GvIOn(gv);
4033 if (!io || !IoDIRP(io))
4036 #ifdef VOID_CLOSEDIR
4037 PerlDir_close(IoDIRP(io));
4039 if (PerlDir_close(IoDIRP(io)) < 0) {
4040 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4049 SETERRNO(EBADF,RMS_IFI);
4052 DIE(aTHX_ PL_no_dir_func, "closedir");
4056 /* Process control. */
4066 PERL_FLUSHALL_FOR_CHILD;
4067 childpid = PerlProc_fork();
4072 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4073 SvREADONLY_off(GvSV(tmpgv));
4074 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4075 SvREADONLY_on(GvSV(tmpgv));
4077 #ifdef THREADS_HAVE_PIDS
4078 PL_ppid = (IV)getppid();
4080 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4085 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4090 PERL_FLUSHALL_FOR_CHILD;
4091 childpid = PerlProc_fork();
4097 DIE(aTHX_ PL_no_func, "fork");
4104 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4109 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4110 childpid = wait4pid(-1, &argflags, 0);
4112 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4117 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4118 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4119 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4121 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4126 DIE(aTHX_ PL_no_func, "wait");
4132 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4141 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4142 result = wait4pid(pid, &argflags, optype);
4144 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4149 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4150 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4151 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4153 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4158 DIE(aTHX_ PL_no_func, "waitpid");
4164 dSP; dMARK; dORIGMARK; dTARGET;
4170 while (++MARK <= SP) {
4171 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4176 TAINT_PROPER("system");
4178 PERL_FLUSHALL_FOR_CHILD;
4179 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4185 if (PerlProc_pipe(pp) >= 0)
4187 while ((childpid = PerlProc_fork()) == -1) {
4188 if (errno != EAGAIN) {
4193 PerlLIO_close(pp[0]);
4194 PerlLIO_close(pp[1]);
4201 Sigsave_t ihand,qhand; /* place to save signals during system() */
4205 PerlLIO_close(pp[1]);
4207 rsignal_save(SIGINT, SIG_IGN, &ihand);
4208 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4211 result = wait4pid(childpid, &status, 0);
4212 } while (result == -1 && errno == EINTR);
4214 (void)rsignal_restore(SIGINT, &ihand);
4215 (void)rsignal_restore(SIGQUIT, &qhand);
4217 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4218 do_execfree(); /* free any memory child malloced on fork */
4224 while (n < sizeof(int)) {
4225 n1 = PerlLIO_read(pp[0],
4226 (void*)(((char*)&errkid)+n),
4232 PerlLIO_close(pp[0]);
4233 if (n) { /* Error */
4234 if (n != sizeof(int))
4235 DIE(aTHX_ "panic: kid popen errno read");
4236 errno = errkid; /* Propagate errno from kid */
4237 STATUS_CURRENT = -1;
4240 PUSHi(STATUS_CURRENT);
4244 PerlLIO_close(pp[0]);
4245 #if defined(HAS_FCNTL) && defined(F_SETFD)
4246 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4249 if (PL_op->op_flags & OPf_STACKED) {
4250 SV *really = *++MARK;
4251 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4253 else if (SP - MARK != 1)
4254 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4256 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4260 #else /* ! FORK or VMS or OS/2 */
4263 if (PL_op->op_flags & OPf_STACKED) {
4264 SV *really = *++MARK;
4265 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4266 value = (I32)do_aspawn(really, MARK, SP);
4268 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4271 else if (SP - MARK != 1) {
4272 # if defined(WIN32) || defined(OS2) || defined(SYMBIAN)
4273 value = (I32)do_aspawn(Nullsv, MARK, SP);
4275 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4279 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4281 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4283 STATUS_NATIVE_SET(value);
4286 PUSHi(result ? value : STATUS_CURRENT);
4287 #endif /* !FORK or VMS */
4293 dSP; dMARK; dORIGMARK; dTARGET;
4298 while (++MARK <= SP) {
4299 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4304 TAINT_PROPER("exec");
4306 PERL_FLUSHALL_FOR_CHILD;
4307 if (PL_op->op_flags & OPf_STACKED) {
4308 SV *really = *++MARK;
4309 value = (I32)do_aexec(really, MARK, SP);
4311 else if (SP - MARK != 1)
4313 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4317 (void ) do_aspawn(Nullsv, MARK, SP);
4321 value = (I32)do_aexec(Nullsv, MARK, SP);
4326 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4329 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4332 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4345 dSP; dMARK; dTARGET;
4347 value = (I32)apply(PL_op->op_type, MARK, SP);
4352 DIE(aTHX_ PL_no_func, "kill");
4360 # ifdef THREADS_HAVE_PIDS
4361 if (PL_ppid != 1 && getppid() == 1)
4362 /* maybe the parent process has died. Refresh ppid cache */
4366 XPUSHi( getppid() );
4370 DIE(aTHX_ PL_no_func, "getppid");
4386 pgrp = (I32)BSD_GETPGRP(pid);
4388 if (pid != 0 && pid != PerlProc_getpid())
4389 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4395 DIE(aTHX_ PL_no_func, "getpgrp()");
4414 TAINT_PROPER("setpgrp");
4416 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4418 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4419 || (pid != 0 && pid != PerlProc_getpid()))
4421 DIE(aTHX_ "setpgrp can't take arguments");
4423 SETi( setpgrp() >= 0 );
4424 #endif /* USE_BSDPGRP */
4427 DIE(aTHX_ PL_no_func, "setpgrp()");
4433 #ifdef HAS_GETPRIORITY
4437 SETi( getpriority(which, who) );
4440 DIE(aTHX_ PL_no_func, "getpriority()");
4446 #ifdef HAS_SETPRIORITY
4451 TAINT_PROPER("setpriority");
4452 SETi( setpriority(which, who, niceval) >= 0 );
4455 DIE(aTHX_ PL_no_func, "setpriority()");
4465 XPUSHn( time(Null(Time_t*)) );
4467 XPUSHi( time(Null(Time_t*)) );
4478 (void)PerlProc_times(&PL_timesbuf);
4480 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4481 /* struct tms, though same data */
4485 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4486 if (GIMME == G_ARRAY) {
4487 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4488 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4489 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4495 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4497 if (GIMME == G_ARRAY) {
4498 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4499 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4500 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4504 DIE(aTHX_ "times not implemented");
4506 #endif /* HAS_TIMES */
4518 const struct tm *tmbuf;
4519 static const char * const dayname[] =
4520 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4521 static const char * const monname[] =
4522 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4523 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4529 when = (Time_t)SvNVx(POPs);
4531 when = (Time_t)SvIVx(POPs);
4534 if (PL_op->op_type == OP_LOCALTIME)
4535 tmbuf = localtime(&when);
4537 tmbuf = gmtime(&when);
4539 if (GIMME != G_ARRAY) {
4545 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4546 dayname[tmbuf->tm_wday],
4547 monname[tmbuf->tm_mon],
4552 tmbuf->tm_year + 1900);
4553 PUSHs(sv_2mortal(tsv));
4558 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4559 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4560 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4561 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4562 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4563 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4564 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4565 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4566 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4577 anum = alarm((unsigned int)anum);
4584 DIE(aTHX_ PL_no_func, "alarm");
4595 (void)time(&lasttime);
4600 PerlProc_sleep((unsigned int)duration);
4603 XPUSHi(when - lasttime);
4607 /* Shared memory. */
4621 return pp_shmwrite();
4626 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4627 dSP; dMARK; dTARGET;
4628 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4637 /* Message passing. */
4651 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4652 dSP; dMARK; dTARGET;
4653 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4664 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4665 dSP; dMARK; dTARGET;
4666 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4679 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4680 dSP; dMARK; dTARGET;
4681 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4688 DIE(aTHX_ "System V IPC is not implemented on this machine");
4694 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4695 dSP; dMARK; dTARGET;
4696 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4704 PUSHp(zero_but_true, ZBTLEN);
4714 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4715 dSP; dMARK; dTARGET;
4716 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4725 /* Get system info. */
4729 #ifdef HAS_GETHOSTBYNAME
4730 return pp_ghostent();
4732 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4738 #ifdef HAS_GETHOSTBYADDR
4739 return pp_ghostent();
4741 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4747 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4749 I32 which = PL_op->op_type;
4750 register char **elem;
4752 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4753 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4754 struct hostent *gethostbyname(Netdb_name_t);
4755 struct hostent *gethostent(void);
4757 struct hostent *hent;
4761 if (which == OP_GHBYNAME) {
4762 #ifdef HAS_GETHOSTBYNAME
4763 char* name = POPpbytex;
4764 hent = PerlSock_gethostbyname(name);
4766 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4769 else if (which == OP_GHBYADDR) {
4770 #ifdef HAS_GETHOSTBYADDR
4771 int addrtype = POPi;
4774 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4776 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4778 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4782 #ifdef HAS_GETHOSTENT
4783 hent = PerlSock_gethostent();
4785 DIE(aTHX_ PL_no_sock_func, "gethostent");
4788 #ifdef HOST_NOT_FOUND
4790 #ifdef USE_REENTRANT_API
4791 # ifdef USE_GETHOSTENT_ERRNO
4792 h_errno = PL_reentrant_buffer->_gethostent_errno;
4795 STATUS_NATIVE_SET(h_errno);
4799 if (GIMME != G_ARRAY) {
4800 PUSHs(sv = sv_newmortal());
4802 if (which == OP_GHBYNAME) {
4804 sv_setpvn(sv, hent->h_addr, hent->h_length);
4807 sv_setpv(sv, (char*)hent->h_name);
4813 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4814 sv_setpv(sv, (char*)hent->h_name);
4815 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4816 for (elem = hent->h_aliases; elem && *elem; elem++) {
4817 sv_catpv(sv, *elem);
4819 sv_catpvn(sv, " ", 1);
4821 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4822 sv_setiv(sv, (IV)hent->h_addrtype);
4823 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4824 len = hent->h_length;
4825 sv_setiv(sv, (IV)len);
4827 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4828 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4829 sv_setpvn(sv, *elem, len);
4832 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4834 sv_setpvn(sv, hent->h_addr, len);
4839 DIE(aTHX_ PL_no_sock_func, "gethostent");
4845 #ifdef HAS_GETNETBYNAME
4846 return pp_gnetent();
4848 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4854 #ifdef HAS_GETNETBYADDR
4855 return pp_gnetent();
4857 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4863 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4865 I32 which = PL_op->op_type;
4866 register char **elem;
4868 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4869 struct netent *getnetbyaddr(Netdb_net_t, int);
4870 struct netent *getnetbyname(Netdb_name_t);
4871 struct netent *getnetent(void);
4873 struct netent *nent;
4875 if (which == OP_GNBYNAME){
4876 #ifdef HAS_GETNETBYNAME
4877 char *name = POPpbytex;
4878 nent = PerlSock_getnetbyname(name);
4880 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4883 else if (which == OP_GNBYADDR) {
4884 #ifdef HAS_GETNETBYADDR
4885 int addrtype = POPi;
4886 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4887 nent = PerlSock_getnetbyaddr(addr, addrtype);
4889 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4893 #ifdef HAS_GETNETENT
4894 nent = PerlSock_getnetent();
4896 DIE(aTHX_ PL_no_sock_func, "getnetent");
4899 #ifdef HOST_NOT_FOUND
4901 #ifdef USE_REENTRANT_API
4902 # ifdef USE_GETNETENT_ERRNO
4903 h_errno = PL_reentrant_buffer->_getnetent_errno;
4906 STATUS_NATIVE_SET(h_errno);
4911 if (GIMME != G_ARRAY) {
4912 PUSHs(sv = sv_newmortal());
4914 if (which == OP_GNBYNAME)
4915 sv_setiv(sv, (IV)nent->n_net);
4917 sv_setpv(sv, nent->n_name);
4923 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4924 sv_setpv(sv, nent->n_name);
4925 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4926 for (elem = nent->n_aliases; elem && *elem; elem++) {
4927 sv_catpv(sv, *elem);
4929 sv_catpvn(sv, " ", 1);
4931 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4932 sv_setiv(sv, (IV)nent->n_addrtype);
4933 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4934 sv_setiv(sv, (IV)nent->n_net);
4939 DIE(aTHX_ PL_no_sock_func, "getnetent");
4945 #ifdef HAS_GETPROTOBYNAME
4946 return pp_gprotoent();
4948 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4954 #ifdef HAS_GETPROTOBYNUMBER
4955 return pp_gprotoent();
4957 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4963 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4965 I32 which = PL_op->op_type;
4966 register char **elem;
4968 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4969 struct protoent *getprotobyname(Netdb_name_t);
4970 struct protoent *getprotobynumber(int);
4971 struct protoent *getprotoent(void);
4973 struct protoent *pent;
4975 if (which == OP_GPBYNAME) {
4976 #ifdef HAS_GETPROTOBYNAME
4977 char* name = POPpbytex;
4978 pent = PerlSock_getprotobyname(name);
4980 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4983 else if (which == OP_GPBYNUMBER) {
4984 #ifdef HAS_GETPROTOBYNUMBER
4986 pent = PerlSock_getprotobynumber(number);
4988 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4992 #ifdef HAS_GETPROTOENT
4993 pent = PerlSock_getprotoent();
4995 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4999 if (GIMME != G_ARRAY) {
5000 PUSHs(sv = sv_newmortal());
5002 if (which == OP_GPBYNAME)
5003 sv_setiv(sv, (IV)pent->p_proto);
5005 sv_setpv(sv, pent->p_name);
5011 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5012 sv_setpv(sv, pent->p_name);
5013 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5014 for (elem = pent->p_aliases; elem && *elem; elem++) {
5015 sv_catpv(sv, *elem);
5017 sv_catpvn(sv, " ", 1);
5019 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5020 sv_setiv(sv, (IV)pent->p_proto);
5025 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5031 #ifdef HAS_GETSERVBYNAME
5032 return pp_gservent();
5034 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5040 #ifdef HAS_GETSERVBYPORT
5041 return pp_gservent();
5043 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5049 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5051 I32 which = PL_op->op_type;
5052 register char **elem;
5054 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5055 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5056 struct servent *getservbyport(int, Netdb_name_t);
5057 struct servent *getservent(void);
5059 struct servent *sent;
5061 if (which == OP_GSBYNAME) {
5062 #ifdef HAS_GETSERVBYNAME
5063 char *proto = POPpbytex;
5064 char *name = POPpbytex;
5066 if (proto && !*proto)
5069 sent = PerlSock_getservbyname(name, proto);
5071 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5074 else if (which == OP_GSBYPORT) {
5075 #ifdef HAS_GETSERVBYPORT
5076 char *proto = POPpbytex;
5077 unsigned short port = (unsigned short)POPu;
5079 if (proto && !*proto)
5083 port = PerlSock_htons(port);
5085 sent = PerlSock_getservbyport(port, proto);
5087 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5091 #ifdef HAS_GETSERVENT
5092 sent = PerlSock_getservent();
5094 DIE(aTHX_ PL_no_sock_func, "getservent");
5098 if (GIMME != G_ARRAY) {
5099 PUSHs(sv = sv_newmortal());
5101 if (which == OP_GSBYNAME) {
5103 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5105 sv_setiv(sv, (IV)(sent->s_port));
5109 sv_setpv(sv, sent->s_name);
5115 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5116 sv_setpv(sv, sent->s_name);
5117 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5118 for (elem = sent->s_aliases; elem && *elem; elem++) {
5119 sv_catpv(sv, *elem);
5121 sv_catpvn(sv, " ", 1);
5123 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5125 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5127 sv_setiv(sv, (IV)(sent->s_port));
5129 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5130 sv_setpv(sv, sent->s_proto);
5135 DIE(aTHX_ PL_no_sock_func, "getservent");
5141 #ifdef HAS_SETHOSTENT
5143 PerlSock_sethostent(TOPi);
5146 DIE(aTHX_ PL_no_sock_func, "sethostent");
5152 #ifdef HAS_SETNETENT
5154 PerlSock_setnetent(TOPi);
5157 DIE(aTHX_ PL_no_sock_func, "setnetent");
5163 #ifdef HAS_SETPROTOENT
5165 PerlSock_setprotoent(TOPi);
5168 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5174 #ifdef HAS_SETSERVENT
5176 PerlSock_setservent(TOPi);
5179 DIE(aTHX_ PL_no_sock_func, "setservent");
5185 #ifdef HAS_ENDHOSTENT
5187 PerlSock_endhostent();
5191 DIE(aTHX_ PL_no_sock_func, "endhostent");
5197 #ifdef HAS_ENDNETENT
5199 PerlSock_endnetent();
5203 DIE(aTHX_ PL_no_sock_func, "endnetent");
5209 #ifdef HAS_ENDPROTOENT
5211 PerlSock_endprotoent();
5215 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5221 #ifdef HAS_ENDSERVENT
5223 PerlSock_endservent();
5227 DIE(aTHX_ PL_no_sock_func, "endservent");
5236 DIE(aTHX_ PL_no_func, "getpwnam");
5245 DIE(aTHX_ PL_no_func, "getpwuid");
5253 I32 which = PL_op->op_type;
5255 struct passwd *pwent = NULL;
5257 * We currently support only the SysV getsp* shadow password interface.
5258 * The interface is declared in <shadow.h> and often one needs to link
5259 * with -lsecurity or some such.
5260 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5263 * AIX getpwnam() is clever enough to return the encrypted password
5264 * only if the caller (euid?) is root.
5266 * There are at least three other shadow password APIs. Many platforms
5267 * seem to contain more than one interface for accessing the shadow
5268 * password databases, possibly for compatibility reasons.
5269 * The getsp*() is by far he simplest one, the other two interfaces
5270 * are much more complicated, but also very similar to each other.
5275 * struct pr_passwd *getprpw*();
5276 * The password is in
5277 * char getprpw*(...).ufld.fd_encrypt[]
5278 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5283 * struct es_passwd *getespw*();
5284 * The password is in
5285 * char *(getespw*(...).ufld.fd_encrypt)
5286 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5289 * struct userpw *getuserpw();
5290 * The password is in
5291 * char *(getuserpw(...)).spw_upw_passwd
5292 * (but the de facto standard getpwnam() should work okay)
5294 * Mention I_PROT here so that Configure probes for it.
5296 * In HP-UX for getprpw*() the manual page claims that one should include
5297 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5298 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5299 * and pp_sys.c already includes <shadow.h> if there is such.
5301 * Note that <sys/security.h> is already probed for, but currently
5302 * it is only included in special cases.
5304 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5305 * be preferred interface, even though also the getprpw*() interface
5306 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5307 * One also needs to call set_auth_parameters() in main() before
5308 * doing anything else, whether one is using getespw*() or getprpw*().
5310 * Note that accessing the shadow databases can be magnitudes
5311 * slower than accessing the standard databases.
5316 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5317 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5318 * the pw_comment is left uninitialized. */
5319 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5325 char* name = POPpbytex;
5326 pwent = getpwnam(name);
5332 pwent = getpwuid(uid);
5336 # ifdef HAS_GETPWENT
5338 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5339 if (pwent) pwent = getpwnam(pwent->pw_name);
5342 DIE(aTHX_ PL_no_func, "getpwent");
5348 if (GIMME != G_ARRAY) {
5349 PUSHs(sv = sv_newmortal());
5351 if (which == OP_GPWNAM)
5352 # if Uid_t_sign <= 0
5353 sv_setiv(sv, (IV)pwent->pw_uid);
5355 sv_setuv(sv, (UV)pwent->pw_uid);
5358 sv_setpv(sv, pwent->pw_name);
5364 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5365 sv_setpv(sv, pwent->pw_name);
5367 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5369 /* If we have getspnam(), we try to dig up the shadow
5370 * password. If we are underprivileged, the shadow
5371 * interface will set the errno to EACCES or similar,
5372 * and return a null pointer. If this happens, we will
5373 * use the dummy password (usually "*" or "x") from the
5374 * standard password database.
5376 * In theory we could skip the shadow call completely
5377 * if euid != 0 but in practice we cannot know which
5378 * security measures are guarding the shadow databases
5379 * on a random platform.
5381 * Resist the urge to use additional shadow interfaces.
5382 * Divert the urge to writing an extension instead.
5385 /* Some AIX setups falsely(?) detect some getspnam(), which
5386 * has a different API than the Solaris/IRIX one. */
5387 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5389 struct spwd *spwent;
5390 int saverrno; /* Save and restore errno so that
5391 * underprivileged attempts seem
5392 * to have never made the unsccessful
5393 * attempt to retrieve the shadow password. */
5396 spwent = getspnam(pwent->pw_name);
5398 if (spwent && spwent->sp_pwdp)
5399 sv_setpv(sv, spwent->sp_pwdp);
5403 if (!SvPOK(sv)) /* Use the standard password, then. */
5404 sv_setpv(sv, pwent->pw_passwd);
5407 # ifndef INCOMPLETE_TAINTS
5408 /* passwd is tainted because user himself can diddle with it.
5409 * admittedly not much and in a very limited way, but nevertheless. */
5413 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5414 # if Uid_t_sign <= 0
5415 sv_setiv(sv, (IV)pwent->pw_uid);
5417 sv_setuv(sv, (UV)pwent->pw_uid);
5420 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5421 # if Uid_t_sign <= 0
5422 sv_setiv(sv, (IV)pwent->pw_gid);
5424 sv_setuv(sv, (UV)pwent->pw_gid);
5426 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5427 * because of the poor interface of the Perl getpw*(),
5428 * not because there's some standard/convention saying so.
5429 * A better interface would have been to return a hash,
5430 * but we are accursed by our history, alas. --jhi. */
5431 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5433 sv_setiv(sv, (IV)pwent->pw_change);
5436 sv_setiv(sv, (IV)pwent->pw_quota);
5439 sv_setpv(sv, pwent->pw_age);
5444 /* pw_class and pw_comment are mutually exclusive--.
5445 * see the above note for pw_change, pw_quota, and pw_age. */
5446 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5448 sv_setpv(sv, pwent->pw_class);
5451 sv_setpv(sv, pwent->pw_comment);
5455 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5457 sv_setpv(sv, pwent->pw_gecos);
5459 # ifndef INCOMPLETE_TAINTS
5460 /* pw_gecos is tainted because user himself can diddle with it. */
5464 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5465 sv_setpv(sv, pwent->pw_dir);
5467 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5468 sv_setpv(sv, pwent->pw_shell);
5469 # ifndef INCOMPLETE_TAINTS
5470 /* pw_shell is tainted because user himself can diddle with it. */
5475 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5476 sv_setiv(sv, (IV)pwent->pw_expire);
5481 DIE(aTHX_ PL_no_func, "getpwent");
5487 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5492 DIE(aTHX_ PL_no_func, "setpwent");
5498 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5503 DIE(aTHX_ PL_no_func, "endpwent");
5512 DIE(aTHX_ PL_no_func, "getgrnam");
5521 DIE(aTHX_ PL_no_func, "getgrgid");
5529 I32 which = PL_op->op_type;
5530 register char **elem;
5532 struct group *grent;
5534 if (which == OP_GGRNAM) {
5535 char* name = POPpbytex;
5536 grent = (struct group *)getgrnam(name);
5538 else if (which == OP_GGRGID) {
5540 grent = (struct group *)getgrgid(gid);
5544 grent = (struct group *)getgrent();
5546 DIE(aTHX_ PL_no_func, "getgrent");
5550 if (GIMME != G_ARRAY) {
5551 PUSHs(sv = sv_newmortal());
5553 if (which == OP_GGRNAM)
5554 sv_setiv(sv, (IV)grent->gr_gid);
5556 sv_setpv(sv, grent->gr_name);
5562 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5563 sv_setpv(sv, grent->gr_name);
5565 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5567 sv_setpv(sv, grent->gr_passwd);
5570 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5571 sv_setiv(sv, (IV)grent->gr_gid);
5573 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5574 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5575 /* In UNICOS/mk (_CRAYMPP) the multithreading
5576 * versions (getgrnam_r, getgrgid_r)
5577 * seem to return an illegal pointer
5578 * as the group members list, gr_mem.
5579 * getgrent() doesn't even have a _r version
5580 * but the gr_mem is poisonous anyway.
5581 * So yes, you cannot get the list of group
5582 * members if building multithreaded in UNICOS/mk. */
5583 for (elem = grent->gr_mem; elem && *elem; elem++) {
5584 sv_catpv(sv, *elem);
5586 sv_catpvn(sv, " ", 1);
5593 DIE(aTHX_ PL_no_func, "getgrent");
5599 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5604 DIE(aTHX_ PL_no_func, "setgrent");
5610 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5615 DIE(aTHX_ PL_no_func, "endgrent");
5625 if (!(tmps = PerlProc_getlogin()))
5627 PUSHp(tmps, strlen(tmps));
5630 DIE(aTHX_ PL_no_func, "getlogin");
5634 /* Miscellaneous. */
5639 dSP; dMARK; dORIGMARK; dTARGET;
5640 register I32 items = SP - MARK;
5641 unsigned long a[20];
5646 while (++MARK <= SP) {
5647 if (SvTAINTED(*MARK)) {
5653 TAINT_PROPER("syscall");
5656 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5657 * or where sizeof(long) != sizeof(char*). But such machines will
5658 * not likely have syscall implemented either, so who cares?
5660 while (++MARK <= SP) {
5661 if (SvNIOK(*MARK) || !i)
5662 a[i++] = SvIV(*MARK);
5663 else if (*MARK == &PL_sv_undef)
5666 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5672 DIE(aTHX_ "Too many args to syscall");
5674 DIE(aTHX_ "Too few args to syscall");
5676 retval = syscall(a[0]);
5679 retval = syscall(a[0],a[1]);
5682 retval = syscall(a[0],a[1],a[2]);
5685 retval = syscall(a[0],a[1],a[2],a[3]);
5688 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5691 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5694 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5697 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5701 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5704 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5707 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5715 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5719 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5720 a[10],a[11],a[12],a[13]);
5722 #endif /* atarist */
5728 DIE(aTHX_ PL_no_func, "syscall");
5732 #ifdef FCNTL_EMULATE_FLOCK
5734 /* XXX Emulate flock() with fcntl().
5735 What's really needed is a good file locking module.
5739 fcntl_emulate_flock(int fd, int operation)
5743 switch (operation & ~LOCK_NB) {
5745 flock.l_type = F_RDLCK;
5748 flock.l_type = F_WRLCK;
5751 flock.l_type = F_UNLCK;
5757 flock.l_whence = SEEK_SET;
5758 flock.l_start = flock.l_len = (Off_t)0;
5760 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5763 #endif /* FCNTL_EMULATE_FLOCK */
5765 #ifdef LOCKF_EMULATE_FLOCK
5767 /* XXX Emulate flock() with lockf(). This is just to increase
5768 portability of scripts. The calls are not completely
5769 interchangeable. What's really needed is a good file
5773 /* The lockf() constants might have been defined in <unistd.h>.
5774 Unfortunately, <unistd.h> causes troubles on some mixed
5775 (BSD/POSIX) systems, such as SunOS 4.1.3.
5777 Further, the lockf() constants aren't POSIX, so they might not be
5778 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5779 just stick in the SVID values and be done with it. Sigh.
5783 # define F_ULOCK 0 /* Unlock a previously locked region */
5786 # define F_LOCK 1 /* Lock a region for exclusive use */
5789 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5792 # define F_TEST 3 /* Test a region for other processes locks */
5796 lockf_emulate_flock(int fd, int operation)
5802 /* flock locks entire file so for lockf we need to do the same */
5804 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5805 if (pos > 0) /* is seekable and needs to be repositioned */
5806 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5807 pos = -1; /* seek failed, so don't seek back afterwards */
5810 switch (operation) {
5812 /* LOCK_SH - get a shared lock */
5814 /* LOCK_EX - get an exclusive lock */
5816 i = lockf (fd, F_LOCK, 0);
5819 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5820 case LOCK_SH|LOCK_NB:
5821 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5822 case LOCK_EX|LOCK_NB:
5823 i = lockf (fd, F_TLOCK, 0);
5825 if ((errno == EAGAIN) || (errno == EACCES))
5826 errno = EWOULDBLOCK;
5829 /* LOCK_UN - unlock (non-blocking is a no-op) */
5831 case LOCK_UN|LOCK_NB:
5832 i = lockf (fd, F_ULOCK, 0);
5835 /* Default - can't decipher operation */
5842 if (pos > 0) /* need to restore position of the handle */
5843 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5848 #endif /* LOCKF_EMULATE_FLOCK */
5852 * c-indentation-style: bsd
5854 * indent-tabs-mode: t
5857 * ex: set ts=8 sts=4 sw=4 noet: