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
126 #else /* no flock() */
128 /* fcntl.h might not have been included, even if it exists, because
129 the current Configure only sets I_FCNTL if it's needed to pick up
130 the *_OK constants. Make sure it has been included before testing
131 the fcntl() locking constants. */
132 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
136 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
137 # define FLOCK fcntl_emulate_flock
138 # define FCNTL_EMULATE_FLOCK
139 # else /* no flock() or fcntl(F_SETLK,...) */
141 # define FLOCK lockf_emulate_flock
142 # define LOCKF_EMULATE_FLOCK
144 # endif /* no flock() or fcntl(F_SETLK,...) */
147 static int FLOCK (int, int);
150 * These are the flock() constants. Since this sytems doesn't have
151 * flock(), the values of the constants are probably not available.
165 # endif /* emulating flock() */
167 #endif /* no flock() */
170 static char zero_but_true[ZBTLEN + 1] = "0 but true";
172 #if defined(I_SYS_ACCESS) && !defined(R_OK)
173 # include <sys/access.h>
176 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
177 # define FD_CLOEXEC 1 /* NeXT needs this */
183 /* Missing protos on LynxOS */
184 void sethostent(int);
185 void endhostent(void);
187 void endnetent(void);
188 void setprotoent(int);
189 void endprotoent(void);
190 void setservent(int);
191 void endservent(void);
194 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
195 #undef PERL_EFF_ACCESS_W_OK
196 #undef PERL_EFF_ACCESS_X_OK
198 /* F_OK unused: if stat() cannot find it... */
200 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
201 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
202 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
203 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
204 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
207 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
208 # ifdef I_SYS_SECURITY
209 # include <sys/security.h>
213 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
214 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
215 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
218 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
219 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
220 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
224 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
226 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
227 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
228 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
231 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
232 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
233 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
236 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
238 Uid_t ruid = getuid();
239 Uid_t euid = geteuid();
240 Gid_t rgid = getgid();
241 Gid_t egid = getegid();
245 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
246 Perl_croak(aTHX_ "switching effective uid is not implemented");
249 if (setreuid(euid, ruid))
252 if (setresuid(euid, ruid, (Uid_t)-1))
255 Perl_croak(aTHX_ "entering effective uid failed");
258 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
259 Perl_croak(aTHX_ "switching effective gid is not implemented");
262 if (setregid(egid, rgid))
265 if (setresgid(egid, rgid, (Gid_t)-1))
268 Perl_croak(aTHX_ "entering effective gid failed");
271 res = access(path, mode);
274 if (setreuid(ruid, euid))
277 if (setresuid(ruid, euid, (Uid_t)-1))
280 Perl_croak(aTHX_ "leaving effective uid failed");
283 if (setregid(rgid, egid))
286 if (setresgid(rgid, egid, (Gid_t)-1))
289 Perl_croak(aTHX_ "leaving effective gid failed");
294 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
295 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
296 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
299 #if !defined(PERL_EFF_ACCESS_R_OK)
300 /* With it or without it: anyway you get a warning: either that
301 it is unused, or it is declared static and never defined.
304 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
306 Perl_croak(aTHX_ "switching effective uid is not implemented");
318 const I32 gimme = GIMME_V;
319 const char *mode = "r";
322 if (PL_op->op_private & OPpOPEN_IN_RAW)
324 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
326 fp = PerlProc_popen(tmps, (char *)mode);
328 const char *type = NULL;
329 if (PL_curcop->cop_io) {
330 type = SvPV_nolen(PL_curcop->cop_io);
333 PerlIO_apply_layers(aTHX_ fp,mode,type);
335 if (gimme == G_VOID) {
337 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
341 else if (gimme == G_SCALAR) {
344 PL_rs = &PL_sv_undef;
345 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
346 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
358 if (sv_gets(sv, fp, 0) == Nullch) {
362 XPUSHs(sv_2mortal(sv));
363 if (SvLEN(sv) - SvCUR(sv) > 20) {
364 SvPV_shrink_to_cur(sv);
369 STATUS_NATIVE_SET(PerlProc_pclose(fp));
370 TAINT; /* "I believe that this is not gratuitous!" */
373 STATUS_NATIVE_SET(-1);
374 if (gimme == G_SCALAR)
384 tryAMAGICunTARGET(iter, -1);
386 /* Note that we only ever get here if File::Glob fails to load
387 * without at the same time croaking, for some reason, or if
388 * perl was built with PERL_EXTERNAL_GLOB */
395 * The external globbing program may use things we can't control,
396 * so for security reasons we must assume the worst.
399 taint_proper(PL_no_security, "glob");
403 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
404 PL_last_in_gv = (GV*)*PL_stack_sp--;
406 SAVESPTR(PL_rs); /* This is not permanent, either. */
407 PL_rs = sv_2mortal(newSVpvn("\000", 1));
410 *SvPVX(PL_rs) = '\n';
414 result = do_readline();
421 PL_last_in_gv = cGVOP_gv;
422 return do_readline();
431 if (SP - MARK != 1) {
433 do_join(TARG, &PL_sv_no, MARK, SP);
440 tmps = SvPV(tmpsv, len);
441 if ((!tmps || !len) && PL_errgv) {
443 (void)SvUPGRADE(error, SVt_PV);
444 if (SvPOK(error) && SvCUR(error))
445 sv_catpv(error, "\t...caught");
447 tmps = SvPV(tmpsv, len);
450 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
452 Perl_warn(aTHX_ "%"SVf, tmpsv);
464 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
466 if (SP - MARK != 1) {
468 do_join(TARG, &PL_sv_no, MARK, SP);
470 tmps = SvPV(tmpsv, len);
476 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
480 (void)SvUPGRADE(error, SVt_PV);
481 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
483 SvSetSV(error,tmpsv);
484 else if (sv_isobject(error)) {
485 HV *stash = SvSTASH(SvRV(error));
486 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
488 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
489 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
496 call_sv((SV*)GvCV(gv),
497 G_SCALAR|G_EVAL|G_KEEPERR);
498 sv_setsv(error,*PL_stack_sp--);
504 if (SvPOK(error) && SvCUR(error))
505 sv_catpv(error, "\t...propagated");
507 tmps = SvPV(tmpsv, len);
511 tmpsv = sv_2mortal(newSVpvn("Died", 4));
513 DIE(aTHX_ "%"SVf, tmpsv);
533 DIE(aTHX_ PL_no_usym, "filehandle");
534 if ((io = GvIOp(gv)))
535 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
537 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
538 /* Method's args are same as ours ... */
539 /* ... except handle is replaced by the object */
540 *MARK-- = SvTIED_obj((SV*)io, mg);
544 call_method("OPEN", G_SCALAR);
557 tmps = SvPV(sv, len);
558 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
561 PUSHi( (I32)PL_forkprocess );
562 else if (PL_forkprocess == 0) /* we are a new child */
581 if (gv && (io = GvIO(gv))
582 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
585 XPUSHs(SvTIED_obj((SV*)io, mg));
588 call_method("CLOSE", G_SCALAR);
594 PUSHs(boolSV(do_close(gv, TRUE)));
614 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
615 DIE(aTHX_ PL_no_usym, "filehandle");
620 do_close(rgv, FALSE);
622 do_close(wgv, FALSE);
624 if (PerlProc_pipe(fd) < 0)
627 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
628 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
629 IoOFP(rstio) = IoIFP(rstio);
630 IoIFP(wstio) = IoOFP(wstio);
631 IoTYPE(rstio) = IoTYPE_RDONLY;
632 IoTYPE(wstio) = IoTYPE_WRONLY;
634 if (!IoIFP(rstio) || !IoOFP(wstio)) {
635 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
636 else PerlLIO_close(fd[0]);
637 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
638 else PerlLIO_close(fd[1]);
641 #if defined(HAS_FCNTL) && defined(F_SETFD)
642 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
643 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
650 DIE(aTHX_ PL_no_func, "pipe");
666 if (gv && (io = GvIO(gv))
667 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
670 XPUSHs(SvTIED_obj((SV*)io, mg));
673 call_method("FILENO", G_SCALAR);
679 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
680 /* Can't do this because people seem to do things like
681 defined(fileno($foo)) to check whether $foo is a valid fh.
682 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
683 report_evil_fh(gv, io, PL_op->op_type);
688 PUSHi(PerlIO_fileno(fp));
699 anum = PerlLIO_umask(0);
700 (void)PerlLIO_umask(anum);
703 anum = PerlLIO_umask(POPi);
704 TAINT_PROPER("umask");
707 /* Only DIE if trying to restrict permissions on `user' (self).
708 * Otherwise it's harmless and more useful to just return undef
709 * since 'group' and 'other' concepts probably don't exist here. */
710 if (MAXARG >= 1 && (POPi & 0700))
711 DIE(aTHX_ "umask not implemented");
712 XPUSHs(&PL_sv_undef);
734 if (gv && (io = GvIO(gv))
735 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
738 XPUSHs(SvTIED_obj((SV*)io, mg));
743 call_method("BINMODE", G_SCALAR);
750 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
751 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
752 report_evil_fh(gv, io, PL_op->op_type);
753 SETERRNO(EBADF,RMS_IFI);
758 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
759 (discp) ? SvPV_nolen(discp) : Nullch)) {
760 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
761 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
762 mode_from_discipline(discp),
763 (discp) ? SvPV_nolen(discp) : Nullch)) {
785 I32 markoff = MARK - PL_stack_base;
786 const char *methname;
787 int how = PERL_MAGIC_tied;
791 switch(SvTYPE(varsv)) {
793 methname = "TIEHASH";
794 HvEITER_set((HV *)varsv, 0);
797 methname = "TIEARRAY";
800 #ifdef GV_UNIQUE_CHECK
801 if (GvUNIQUE((GV*)varsv)) {
802 Perl_croak(aTHX_ "Attempt to tie unique GV");
805 methname = "TIEHANDLE";
806 how = PERL_MAGIC_tiedscalar;
807 /* For tied filehandles, we apply tiedscalar magic to the IO
808 slot of the GP rather than the GV itself. AMS 20010812 */
810 GvIOp(varsv) = newIO();
811 varsv = (SV *)GvIOp(varsv);
814 methname = "TIESCALAR";
815 how = PERL_MAGIC_tiedscalar;
819 if (sv_isobject(*MARK)) {
821 PUSHSTACKi(PERLSI_MAGIC);
823 EXTEND(SP,(I32)items);
827 call_method(methname, G_SCALAR);
830 /* Not clear why we don't call call_method here too.
831 * perhaps to get different error message ?
833 stash = gv_stashsv(*MARK, FALSE);
834 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
835 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
839 PUSHSTACKi(PERLSI_MAGIC);
841 EXTEND(SP,(I32)items);
845 call_sv((SV*)GvCV(gv), G_SCALAR);
851 if (sv_isobject(sv)) {
852 sv_unmagic(varsv, how);
853 /* Croak if a self-tie on an aggregate is attempted. */
854 if (varsv == SvRV(sv) &&
855 (SvTYPE(varsv) == SVt_PVAV ||
856 SvTYPE(varsv) == SVt_PVHV))
858 "Self-ties of arrays and hashes are not supported");
859 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
862 SP = PL_stack_base + markoff;
872 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
873 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
875 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
878 if ((mg = SvTIED_mg(sv, how))) {
879 SV *obj = SvRV(SvTIED_obj(sv, mg));
883 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
884 isGV(gv) && (cv = GvCV(gv))) {
886 XPUSHs(SvTIED_obj((SV*)gv, mg));
887 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
890 call_sv((SV *)cv, G_VOID);
894 else if (ckWARN(WARN_UNTIE)) {
895 if (mg && SvREFCNT(obj) > 1)
896 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
897 "untie attempted while %"UVuf" inner references still exist",
898 (UV)SvREFCNT(obj) - 1 ) ;
902 sv_unmagic(sv, how) ;
911 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
912 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
914 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
917 if ((mg = SvTIED_mg(sv, how))) {
918 SV *osv = SvTIED_obj(sv, mg);
919 if (osv == mg->mg_obj)
920 osv = sv_mortalcopy(osv);
938 sv = sv_mortalcopy(&PL_sv_no);
939 sv_setpv(sv, "AnyDBM_File");
940 stash = gv_stashsv(sv, FALSE);
941 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
943 require_pv("AnyDBM_File.pm");
945 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
946 DIE(aTHX_ "No dbm on this machine");
956 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
958 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
961 call_sv((SV*)GvCV(gv), G_SCALAR);
964 if (!sv_isobject(TOPs)) {
969 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
972 call_sv((SV*)GvCV(gv), G_SCALAR);
976 if (sv_isobject(TOPs)) {
977 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
978 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1000 struct timeval timebuf;
1001 struct timeval *tbuf = &timebuf;
1005 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1010 # if BYTEORDER & 0xf0000
1011 # define ORDERBYTE (0x88888888 - BYTEORDER)
1013 # define ORDERBYTE (0x4444 - BYTEORDER)
1019 for (i = 1; i <= 3; i++) {
1027 /* little endians can use vecs directly */
1028 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1035 masksize = NFDBITS / NBBY;
1037 masksize = sizeof(long); /* documented int, everyone seems to use long */
1039 Zero(&fd_sets[0], 4, char*);
1042 # if SELECT_MIN_BITS == 1
1043 growsize = sizeof(fd_set);
1045 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1046 # undef SELECT_MIN_BITS
1047 # define SELECT_MIN_BITS __FD_SETSIZE
1049 /* If SELECT_MIN_BITS is greater than one we most probably will want
1050 * to align the sizes with SELECT_MIN_BITS/8 because for example
1051 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1052 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1053 * on (sets/tests/clears bits) is 32 bits. */
1054 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1062 timebuf.tv_sec = (long)value;
1063 value -= (NV)timebuf.tv_sec;
1064 timebuf.tv_usec = (long)(value * 1000000.0);
1067 tbuf = Null(struct timeval*);
1069 for (i = 1; i <= 3; i++) {
1075 else if (!SvPOK(sv))
1076 SvPV_force(sv,n_a); /* force string conversion */
1079 Sv_Grow(sv, growsize);
1083 while (++j <= growsize) {
1087 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1089 New(403, fd_sets[i], growsize, char);
1090 for (offset = 0; offset < growsize; offset += masksize) {
1091 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1092 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1095 fd_sets[i] = SvPVX(sv);
1099 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1100 /* Can't make just the (void*) conditional because that would be
1101 * cpp #if within cpp macro, and not all compilers like that. */
1102 nfound = PerlSock_select(
1104 (Select_fd_set_t) fd_sets[1],
1105 (Select_fd_set_t) fd_sets[2],
1106 (Select_fd_set_t) fd_sets[3],
1107 (void*) tbuf); /* Workaround for compiler bug. */
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],
1116 for (i = 1; i <= 3; i++) {
1119 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1121 for (offset = 0; offset < growsize; offset += masksize) {
1122 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1123 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1125 Safefree(fd_sets[i]);
1132 if (GIMME == G_ARRAY && tbuf) {
1133 value = (NV)(timebuf.tv_sec) +
1134 (NV)(timebuf.tv_usec) / 1000000.0;
1135 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1136 sv_setnv(sv, value);
1140 DIE(aTHX_ "select not implemented");
1145 Perl_setdefout(pTHX_ GV *gv)
1148 (void)SvREFCNT_inc(gv);
1150 SvREFCNT_dec(PL_defoutgv);
1157 GV *newdefout, *egv;
1160 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1162 egv = GvEGV(PL_defoutgv);
1167 XPUSHs(&PL_sv_undef);
1169 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1170 if (gvp && *gvp == egv) {
1171 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1175 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1180 if (!GvIO(newdefout))
1181 gv_IOadd(newdefout);
1182 setdefout(newdefout);
1200 if (gv && (io = GvIO(gv))
1201 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1203 const I32 gimme = GIMME_V;
1205 XPUSHs(SvTIED_obj((SV*)io, mg));
1208 call_method("GETC", gimme);
1211 if (gimme == G_SCALAR)
1212 SvSetMagicSV_nosteal(TARG, TOPs);
1215 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1216 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1217 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1218 report_evil_fh(gv, io, PL_op->op_type);
1219 SETERRNO(EBADF,RMS_IFI);
1223 sv_setpvn(TARG, " ", 1);
1224 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1225 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1226 /* Find out how many bytes the char needs */
1227 Size_t len = UTF8SKIP(SvPVX(TARG));
1230 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1231 SvCUR_set(TARG,1+len);
1241 return pp_sysread();
1245 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1247 register PERL_CONTEXT *cx;
1248 const I32 gimme = GIMME_V;
1254 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1256 PAD_SET_CUR(CvPADLIST(cv), 1);
1258 setdefout(gv); /* locally select filehandle so $% et al work */
1291 SV *tmpsv = sv_newmortal();
1292 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1293 name = SvPV_nolen(tmpsv);
1296 DIE(aTHX_ "Undefined format \"%s\" called", name);
1297 DIE(aTHX_ "Not a format reference");
1300 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1302 IoFLAGS(io) &= ~IOf_DIDTOP;
1303 return doform(cv,gv,PL_op->op_next);
1309 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1310 register IO *io = GvIOp(gv);
1311 PerlIO *ofp = IoOFP(io);
1315 register PERL_CONTEXT *cx;
1317 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1318 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1321 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1322 PL_formtarget != PL_toptarget)
1326 if (!IoTOP_GV(io)) {
1330 if (!IoTOP_NAME(io)) {
1331 if (!IoFMT_NAME(io))
1332 IoFMT_NAME(io) = savepv(GvNAME(gv));
1333 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1334 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1335 if ((topgv && GvFORM(topgv)) ||
1336 !gv_fetchpv("top",FALSE,SVt_PVFM))
1337 IoTOP_NAME(io) = savesvpv(topname);
1339 IoTOP_NAME(io) = savepv("top");
1341 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1342 if (!topgv || !GvFORM(topgv)) {
1343 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1346 IoTOP_GV(io) = topgv;
1348 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1349 I32 lines = IoLINES_LEFT(io);
1350 const char *s = SvPVX(PL_formtarget);
1351 if (lines <= 0) /* Yow, header didn't even fit!!! */
1353 while (lines-- > 0) {
1354 s = strchr(s, '\n');
1360 const STRLEN save = SvCUR(PL_formtarget);
1361 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1362 do_print(PL_formtarget, ofp);
1363 SvCUR_set(PL_formtarget, save);
1364 sv_chop(PL_formtarget, s);
1365 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1368 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1369 do_print(PL_formfeed, ofp);
1370 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1372 PL_formtarget = PL_toptarget;
1373 IoFLAGS(io) |= IOf_DIDTOP;
1376 DIE(aTHX_ "bad top format reference");
1381 SV *sv = sv_newmortal();
1382 gv_efullname4(sv, fgv, Nullch, FALSE);
1383 name = SvPV_nolen(sv);
1386 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1389 DIE(aTHX_ "Undefined top format called");
1393 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1394 return doform(cv,gv,PL_op);
1398 POPBLOCK(cx,PL_curpm);
1404 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1406 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1407 else if (ckWARN(WARN_CLOSED))
1408 report_evil_fh(gv, io, PL_op->op_type);
1413 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1414 if (ckWARN(WARN_IO))
1415 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1417 if (!do_print(PL_formtarget, fp))
1420 FmLINES(PL_formtarget) = 0;
1421 SvCUR_set(PL_formtarget, 0);
1422 *SvEND(PL_formtarget) = '\0';
1423 if (IoFLAGS(io) & IOf_FLUSH)
1424 (void)PerlIO_flush(fp);
1429 PL_formtarget = PL_bodytarget;
1431 return pop_return();
1436 dSP; dMARK; dORIGMARK;
1443 if (PL_op->op_flags & OPf_STACKED)
1448 if (gv && (io = GvIO(gv))
1449 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1451 if (MARK == ORIGMARK) {
1454 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1458 *MARK = SvTIED_obj((SV*)io, mg);
1461 call_method("PRINTF", G_SCALAR);
1464 MARK = ORIGMARK + 1;
1471 if (!(io = GvIO(gv))) {
1472 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1473 report_evil_fh(gv, io, PL_op->op_type);
1474 SETERRNO(EBADF,RMS_IFI);
1477 else if (!(fp = IoOFP(io))) {
1478 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1480 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1481 else if (ckWARN(WARN_CLOSED))
1482 report_evil_fh(gv, io, PL_op->op_type);
1484 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1488 do_sprintf(sv, SP - MARK, MARK + 1);
1489 if (!do_print(sv, fp))
1492 if (IoFLAGS(io) & IOf_FLUSH)
1493 if (PerlIO_flush(fp) == EOF)
1504 PUSHs(&PL_sv_undef);
1525 /* Need TIEHANDLE method ? */
1527 tmps = SvPV(sv, len);
1528 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1529 IoLINES(GvIOp(gv)) = 0;
1533 PUSHs(&PL_sv_undef);
1540 dSP; dMARK; dORIGMARK; dTARGET;
1547 Sock_size_t bufsize;
1556 bool charstart = FALSE;
1557 STRLEN charskip = 0;
1561 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1562 && gv && (io = GvIO(gv))
1563 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1568 *MARK = SvTIED_obj((SV*)io, mg);
1570 call_method("READ", G_SCALAR);
1583 sv_setpvn(bufsv, "", 0);
1584 length = SvIVx(*++MARK);
1587 offset = SvIVx(*++MARK);
1591 if (!io || !IoIFP(io)) {
1592 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1593 report_evil_fh(gv, io, PL_op->op_type);
1594 SETERRNO(EBADF,RMS_IFI);
1597 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1598 buffer = SvPVutf8_force(bufsv, blen);
1599 /* UTF-8 may not have been set if they are all low bytes */
1604 buffer = SvPV_force(bufsv, blen);
1605 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1608 DIE(aTHX_ "Negative length");
1616 if (PL_op->op_type == OP_RECV) {
1617 char namebuf[MAXPATHLEN];
1618 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1619 bufsize = sizeof (struct sockaddr_in);
1621 bufsize = sizeof namebuf;
1623 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1627 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1628 /* 'offset' means 'flags' here */
1629 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1630 (struct sockaddr *)namebuf, &bufsize);
1634 /* Bogus return without padding */
1635 bufsize = sizeof (struct sockaddr_in);
1637 SvCUR_set(bufsv, count);
1638 *SvEND(bufsv) = '\0';
1639 (void)SvPOK_only(bufsv);
1643 /* This should not be marked tainted if the fp is marked clean */
1644 if (!(IoFLAGS(io) & IOf_UNTAINT))
1645 SvTAINTED_on(bufsv);
1647 sv_setpvn(TARG, namebuf, bufsize);
1652 if (PL_op->op_type == OP_RECV)
1653 DIE(aTHX_ PL_no_sock_func, "recv");
1655 if (DO_UTF8(bufsv)) {
1656 /* offset adjust in characters not bytes */
1657 blen = sv_len_utf8(bufsv);
1660 if (-offset > (int)blen)
1661 DIE(aTHX_ "Offset outside string");
1664 if (DO_UTF8(bufsv)) {
1665 /* convert offset-as-chars to offset-as-bytes */
1666 if (offset >= (int)blen)
1667 offset += SvCUR(bufsv) - blen;
1669 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1672 bufsize = SvCUR(bufsv);
1673 /* Allocating length + offset + 1 isn't perfect in the case of reading
1674 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1676 (should be 2 * length + offset + 1, or possibly something longer if
1677 PL_encoding is true) */
1678 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1679 if (offset > bufsize) { /* Zero any newly allocated space */
1680 Zero(buffer+bufsize, offset-bufsize, char);
1682 buffer = buffer + offset;
1684 read_target = bufsv;
1686 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1687 concatenate it to the current buffer. */
1689 /* Truncate the existing buffer to the start of where we will be
1691 SvCUR_set(bufsv, offset);
1693 read_target = sv_newmortal();
1694 (void)SvUPGRADE(read_target, SVt_PV);
1695 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1698 if (PL_op->op_type == OP_SYSREAD) {
1699 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1700 if (IoTYPE(io) == IoTYPE_SOCKET) {
1701 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1707 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1712 #ifdef HAS_SOCKET__bad_code_maybe
1713 if (IoTYPE(io) == IoTYPE_SOCKET) {
1714 char namebuf[MAXPATHLEN];
1715 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1716 bufsize = sizeof (struct sockaddr_in);
1718 bufsize = sizeof namebuf;
1720 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1721 (struct sockaddr *)namebuf, &bufsize);
1726 count = PerlIO_read(IoIFP(io), buffer, length);
1727 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1728 if (count == 0 && PerlIO_error(IoIFP(io)))
1732 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1733 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1736 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1737 *SvEND(read_target) = '\0';
1738 (void)SvPOK_only(read_target);
1739 if (fp_utf8 && !IN_BYTES) {
1740 /* Look at utf8 we got back and count the characters */
1741 char *bend = buffer + count;
1742 while (buffer < bend) {
1744 skip = UTF8SKIP(buffer);
1747 if (buffer - charskip + skip > bend) {
1748 /* partial character - try for rest of it */
1749 length = skip - (bend-buffer);
1750 offset = bend - SvPVX(bufsv);
1762 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1763 provided amount read (count) was what was requested (length)
1765 if (got < wanted && count == length) {
1766 length = wanted - got;
1767 offset = bend - SvPVX(bufsv);
1770 /* return value is character count */
1774 else if (buffer_utf8) {
1775 /* Let svcatsv upgrade the bytes we read in to utf8.
1776 The buffer is a mortal so will be freed soon. */
1777 sv_catsv_nomg(bufsv, read_target);
1780 /* This should not be marked tainted if the fp is marked clean */
1781 if (!(IoFLAGS(io) & IOf_UNTAINT))
1782 SvTAINTED_on(bufsv);
1795 int items = (SP - PL_stack_base) - TOPMARK;
1799 sv = sv_2mortal(newSViv(sv_len(*SP)));
1808 dSP; dMARK; dORIGMARK; dTARGET;
1819 if (PL_op->op_type == OP_SYSWRITE
1820 && gv && (io = GvIO(gv))
1821 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1826 *MARK = SvTIED_obj((SV*)io, mg);
1828 call_method("WRITE", G_SCALAR);
1839 #if Size_t_size > IVSIZE
1840 length = (Size_t)SvNVx(*++MARK);
1842 length = (Size_t)SvIVx(*++MARK);
1844 if ((SSize_t)length < 0)
1845 DIE(aTHX_ "Negative length");
1848 if (!io || !IoIFP(io)) {
1850 if (ckWARN(WARN_CLOSED))
1851 report_evil_fh(gv, io, PL_op->op_type);
1852 SETERRNO(EBADF,RMS_IFI);
1856 if (PerlIO_isutf8(IoIFP(io))) {
1857 if (!SvUTF8(bufsv)) {
1858 bufsv = sv_2mortal(newSVsv(bufsv));
1859 buffer = sv_2pvutf8(bufsv, &blen);
1861 buffer = SvPV(bufsv, blen);
1864 if (DO_UTF8(bufsv)) {
1865 /* Not modifying source SV, so making a temporary copy. */
1866 bufsv = sv_2mortal(newSVsv(bufsv));
1867 sv_utf8_downgrade(bufsv, FALSE);
1869 buffer = SvPV(bufsv, blen);
1872 if (PL_op->op_type == OP_SYSWRITE) {
1874 if (DO_UTF8(bufsv)) {
1875 /* length and offset are in chars */
1876 blen = sv_len_utf8(bufsv);
1879 offset = SvIVx(*++MARK);
1881 if (-offset > (IV)blen)
1882 DIE(aTHX_ "Offset outside string");
1884 } else if (offset >= (IV)blen && blen > 0)
1885 DIE(aTHX_ "Offset outside string");
1888 if (length > blen - offset)
1889 length = blen - offset;
1890 if (DO_UTF8(bufsv)) {
1891 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1892 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1895 buffer = buffer+offset;
1897 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1898 if (IoTYPE(io) == IoTYPE_SOCKET) {
1899 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1905 /* See the note at doio.c:do_print about filesize limits. --jhi */
1906 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1911 else if (SP > MARK) {
1914 sockbuf = SvPVx(*++MARK, mlen);
1915 /* length is really flags */
1916 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1917 length, (struct sockaddr *)sockbuf, mlen);
1920 /* length is really flags */
1921 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1924 DIE(aTHX_ PL_no_sock_func, "send");
1930 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1931 #if Size_t_size > IVSIZE
1945 return pp_sysread();
1956 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1958 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1960 if (io && !IoIFP(io)) {
1961 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1963 IoFLAGS(io) &= ~IOf_START;
1964 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1965 sv_setpvn(GvSV(gv), "-", 1);
1966 SvSETMAGIC(GvSV(gv));
1968 else if (!nextargv(gv))
1973 gv = PL_last_in_gv; /* eof */
1976 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1978 if (gv && (io = GvIO(gv))
1979 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1982 XPUSHs(SvTIED_obj((SV*)io, mg));
1985 call_method("EOF", G_SCALAR);
1991 PUSHs(boolSV(!gv || do_eof(gv)));
2005 gv = PL_last_in_gv = (GV*)POPs;
2007 if (gv && (io = GvIO(gv))
2008 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2011 XPUSHs(SvTIED_obj((SV*)io, mg));
2014 call_method("TELL", G_SCALAR);
2020 #if LSEEKSIZE > IVSIZE
2021 PUSHn( do_tell(gv) );
2023 PUSHi( do_tell(gv) );
2030 return pp_sysseek();
2039 #if LSEEKSIZE > IVSIZE
2040 Off_t offset = (Off_t)SvNVx(POPs);
2042 Off_t offset = (Off_t)SvIVx(POPs);
2046 gv = PL_last_in_gv = (GV*)POPs;
2048 if (gv && (io = GvIO(gv))
2049 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2052 XPUSHs(SvTIED_obj((SV*)io, mg));
2053 #if LSEEKSIZE > IVSIZE
2054 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2056 XPUSHs(sv_2mortal(newSViv(offset)));
2058 XPUSHs(sv_2mortal(newSViv(whence)));
2061 call_method("SEEK", G_SCALAR);
2067 if (PL_op->op_type == OP_SEEK)
2068 PUSHs(boolSV(do_seek(gv, offset, whence)));
2070 Off_t sought = do_sysseek(gv, offset, whence);
2072 PUSHs(&PL_sv_undef);
2075 #if LSEEKSIZE > IVSIZE
2080 : newSVpvn(zero_but_true, ZBTLEN);
2081 PUSHs(sv_2mortal(sv));
2090 /* There seems to be no consensus on the length type of truncate()
2091 * and ftruncate(), both off_t and size_t have supporters. In
2092 * general one would think that when using large files, off_t is
2093 * at least as wide as size_t, so using an off_t should be okay. */
2094 /* XXX Configure probe for the length type of *truncate() needed XXX */
2097 #if Off_t_size > IVSIZE
2102 /* Checking for length < 0 is problematic as the type might or
2103 * might not be signed: if it is not, clever compilers will moan. */
2104 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2112 if (PL_op->op_flags & OPf_SPECIAL) {
2113 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
2122 TAINT_PROPER("truncate");
2123 if (!(fp = IoIFP(io))) {
2129 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2131 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2141 if (SvTYPE(sv) == SVt_PVGV) {
2142 tmpgv = (GV*)sv; /* *main::FRED for example */
2143 goto do_ftruncate_gv;
2145 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2146 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2147 goto do_ftruncate_gv;
2149 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2150 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2151 goto do_ftruncate_io;
2154 name = SvPV(sv, n_a);
2155 TAINT_PROPER("truncate");
2157 if (truncate(name, len) < 0)
2163 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2166 if (my_chsize(tmpfd, len) < 0)
2168 PerlLIO_close(tmpfd);
2177 SETERRNO(EBADF,RMS_IFI);
2191 unsigned int func = POPu;
2192 const int optype = PL_op->op_type;
2196 IO *io = gv ? GvIOn(gv) : 0;
2198 if (!io || !argsv || !IoIFP(io)) {
2199 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2200 report_evil_fh(gv, io, PL_op->op_type);
2201 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2205 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2208 s = SvPV_force(argsv, len);
2209 need = IOCPARM_LEN(func);
2211 s = Sv_Grow(argsv, need + 1);
2212 SvCUR_set(argsv, need);
2215 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2218 retval = SvIV(argsv);
2219 s = INT2PTR(char*,retval); /* ouch */
2222 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2224 if (optype == OP_IOCTL)
2226 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2228 DIE(aTHX_ "ioctl is not implemented");
2232 DIE(aTHX_ "fcntl is not implemented");
2234 #if defined(OS2) && defined(__EMX__)
2235 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2237 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2241 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2243 if (s[SvCUR(argsv)] != 17)
2244 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2246 s[SvCUR(argsv)] = 0; /* put our null back */
2247 SvSETMAGIC(argsv); /* Assume it has changed */
2256 PUSHp(zero_but_true, ZBTLEN);
2277 if (gv && (io = GvIO(gv)))
2284 (void)PerlIO_flush(fp);
2285 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2288 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2289 report_evil_fh(gv, io, PL_op->op_type);
2291 SETERRNO(EBADF,RMS_IFI);
2296 DIE(aTHX_ PL_no_func, "flock()");
2308 int protocol = POPi;
2314 io = gv ? GvIOn(gv) : NULL;
2317 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2318 report_evil_fh(gv, io, PL_op->op_type);
2320 do_close(gv, FALSE);
2321 SETERRNO(EBADF,LIB_INVARG);
2326 do_close(gv, FALSE);
2328 TAINT_PROPER("socket");
2329 fd = PerlSock_socket(domain, type, protocol);
2332 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2333 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2334 IoTYPE(io) = IoTYPE_SOCKET;
2335 if (!IoIFP(io) || !IoOFP(io)) {
2336 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2337 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2338 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2341 #if defined(HAS_FCNTL) && defined(F_SETFD)
2342 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2346 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2351 DIE(aTHX_ PL_no_sock_func, "socket");
2357 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2363 int protocol = POPi;
2370 io1 = gv1 ? GvIOn(gv1) : NULL;
2371 io2 = gv2 ? GvIOn(gv2) : NULL;
2372 if (!gv1 || !gv2 || !io1 || !io2) {
2373 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2375 report_evil_fh(gv1, io1, PL_op->op_type);
2377 report_evil_fh(gv1, io2, PL_op->op_type);
2380 do_close(gv1, FALSE);
2382 do_close(gv2, FALSE);
2387 do_close(gv1, FALSE);
2389 do_close(gv2, FALSE);
2391 TAINT_PROPER("socketpair");
2392 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2394 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2395 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2396 IoTYPE(io1) = IoTYPE_SOCKET;
2397 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2398 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2399 IoTYPE(io2) = IoTYPE_SOCKET;
2400 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2401 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2402 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2403 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2404 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2405 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2406 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2409 #if defined(HAS_FCNTL) && defined(F_SETFD)
2410 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2411 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2416 DIE(aTHX_ PL_no_sock_func, "socketpair");
2424 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2425 extern void GETPRIVMODE();
2426 extern void GETUSERMODE();
2431 register IO *io = GvIOn(gv);
2435 int mpeprivmode = 0;
2438 if (!io || !IoIFP(io))
2441 addr = SvPV(addrsv, len);
2442 TAINT_PROPER("bind");
2443 #ifdef MPE /* Deal with MPE bind() peculiarities */
2444 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2445 /* The address *MUST* stupidly be zero. */
2446 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2447 /* PRIV mode is required to bind() to ports < 1024. */
2448 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2449 ((struct sockaddr_in *)addr)->sin_port > 0) {
2450 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2455 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2456 (struct sockaddr *)addr, len) >= 0)
2459 #ifdef MPE /* Switch back to USER mode */
2470 if (ckWARN(WARN_CLOSED))
2471 report_evil_fh(gv, io, PL_op->op_type);
2472 SETERRNO(EBADF,SS_IVCHAN);
2475 DIE(aTHX_ PL_no_sock_func, "bind");
2486 register IO *io = GvIOn(gv);
2489 if (!io || !IoIFP(io))
2492 addr = SvPV(addrsv, len);
2493 TAINT_PROPER("connect");
2494 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2500 if (ckWARN(WARN_CLOSED))
2501 report_evil_fh(gv, io, PL_op->op_type);
2502 SETERRNO(EBADF,SS_IVCHAN);
2505 DIE(aTHX_ PL_no_sock_func, "connect");
2515 register IO *io = gv ? GvIOn(gv) : NULL;
2517 if (!gv || !io || !IoIFP(io))
2520 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2526 if (ckWARN(WARN_CLOSED))
2527 report_evil_fh(gv, io, PL_op->op_type);
2528 SETERRNO(EBADF,SS_IVCHAN);
2531 DIE(aTHX_ PL_no_sock_func, "listen");
2543 char namebuf[MAXPATHLEN];
2544 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2545 Sock_size_t len = sizeof (struct sockaddr_in);
2547 Sock_size_t len = sizeof namebuf;
2560 if (!gstio || !IoIFP(gstio))
2564 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2568 do_close(ngv, FALSE);
2569 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2570 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2571 IoTYPE(nstio) = IoTYPE_SOCKET;
2572 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2573 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2574 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2575 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2578 #if defined(HAS_FCNTL) && defined(F_SETFD)
2579 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2583 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2584 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2586 #ifdef __SCO_VERSION__
2587 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2590 PUSHp(namebuf, len);
2594 if (ckWARN(WARN_CLOSED))
2595 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2596 SETERRNO(EBADF,SS_IVCHAN);
2602 DIE(aTHX_ PL_no_sock_func, "accept");
2612 register IO *io = GvIOn(gv);
2614 if (!io || !IoIFP(io))
2617 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2621 if (ckWARN(WARN_CLOSED))
2622 report_evil_fh(gv, io, PL_op->op_type);
2623 SETERRNO(EBADF,SS_IVCHAN);
2626 DIE(aTHX_ PL_no_sock_func, "shutdown");
2633 return pp_ssockopt();
2635 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2643 int optype = PL_op->op_type;
2646 unsigned int optname;
2652 if (optype == OP_GSOCKOPT)
2653 sv = sv_2mortal(NEWSV(22, 257));
2656 optname = (unsigned int) POPi;
2657 lvl = (unsigned int) POPi;
2661 if (!io || !IoIFP(io))
2664 fd = PerlIO_fileno(IoIFP(io));
2668 (void)SvPOK_only(sv);
2672 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2687 aint = (int)SvIV(sv);
2691 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2700 if (ckWARN(WARN_CLOSED))
2701 report_evil_fh(gv, io, optype);
2702 SETERRNO(EBADF,SS_IVCHAN);
2707 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2714 return pp_getpeername();
2716 DIE(aTHX_ PL_no_sock_func, "getsockname");
2724 int optype = PL_op->op_type;
2728 register IO *io = GvIOn(gv);
2731 if (!io || !IoIFP(io))
2734 sv = sv_2mortal(NEWSV(22, 257));
2735 (void)SvPOK_only(sv);
2739 fd = PerlIO_fileno(IoIFP(io));
2741 case OP_GETSOCKNAME:
2742 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2745 case OP_GETPEERNAME:
2746 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2748 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2750 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";
2751 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2752 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2753 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2754 sizeof(u_short) + sizeof(struct in_addr))) {
2761 #ifdef BOGUS_GETNAME_RETURN
2762 /* Interactive Unix, getpeername() and getsockname()
2763 does not return valid namelen */
2764 if (len == BOGUS_GETNAME_RETURN)
2765 len = sizeof(struct sockaddr);
2773 if (ckWARN(WARN_CLOSED))
2774 report_evil_fh(gv, io, optype);
2775 SETERRNO(EBADF,SS_IVCHAN);
2780 DIE(aTHX_ PL_no_sock_func, "getpeername");
2799 if (PL_op->op_flags & OPf_REF) {
2801 if (PL_op->op_type == OP_LSTAT) {
2802 if (gv != PL_defgv) {
2803 if (ckWARN(WARN_IO))
2804 Perl_warner(aTHX_ packWARN(WARN_IO),
2805 "lstat() on filehandle %s", GvENAME(gv));
2806 } else if (PL_laststype != OP_LSTAT)
2807 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2811 if (gv != PL_defgv) {
2812 PL_laststype = OP_STAT;
2814 sv_setpvn(PL_statname, "", 0);
2815 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2816 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2818 if (PL_laststatval < 0) {
2819 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2820 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2826 if (SvTYPE(sv) == SVt_PVGV) {
2830 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2832 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2833 Perl_warner(aTHX_ packWARN(WARN_IO),
2834 "lstat() on filehandle %s", GvENAME(gv));
2837 sv_setpv(PL_statname, SvPV(sv,n_a));
2839 PL_laststype = PL_op->op_type;
2840 if (PL_op->op_type == OP_LSTAT)
2841 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2843 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2844 if (PL_laststatval < 0) {
2845 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2846 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2852 if (gimme != G_ARRAY) {
2853 if (gimme != G_VOID)
2854 XPUSHs(boolSV(max));
2860 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2861 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2862 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2863 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2864 #if Uid_t_size > IVSIZE
2865 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2867 # if Uid_t_sign <= 0
2868 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2870 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2873 #if Gid_t_size > IVSIZE
2874 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2876 # if Gid_t_sign <= 0
2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2882 #ifdef USE_STAT_RDEV
2883 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2885 PUSHs(sv_2mortal(newSVpvn("", 0)));
2887 #if Off_t_size > IVSIZE
2888 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2890 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2893 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2894 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2895 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2897 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2898 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2901 #ifdef USE_STAT_BLOCKS
2902 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2903 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2905 PUSHs(sv_2mortal(newSVpvn("", 0)));
2906 PUSHs(sv_2mortal(newSVpvn("", 0)));
2916 #if defined(HAS_ACCESS) && defined(R_OK)
2918 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2919 result = access(POPpx, R_OK);
2934 if (cando(S_IRUSR, 0, &PL_statcache))
2943 #if defined(HAS_ACCESS) && defined(W_OK)
2945 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2946 result = access(POPpx, W_OK);
2961 if (cando(S_IWUSR, 0, &PL_statcache))
2970 #if defined(HAS_ACCESS) && defined(X_OK)
2972 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2973 result = access(POPpx, X_OK);
2988 if (cando(S_IXUSR, 0, &PL_statcache))
2997 #ifdef PERL_EFF_ACCESS_R_OK
2999 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3000 result = PERL_EFF_ACCESS_R_OK(POPpx);
3015 if (cando(S_IRUSR, 1, &PL_statcache))
3024 #ifdef PERL_EFF_ACCESS_W_OK
3026 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3027 result = PERL_EFF_ACCESS_W_OK(POPpx);
3042 if (cando(S_IWUSR, 1, &PL_statcache))
3051 #ifdef PERL_EFF_ACCESS_X_OK
3053 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3054 result = PERL_EFF_ACCESS_X_OK(POPpx);
3069 if (cando(S_IXUSR, 1, &PL_statcache))
3076 I32 result = my_stat();
3085 return pp_ftrowned();
3090 I32 result = my_stat();
3094 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
3102 I32 result = my_stat();
3106 if (PL_statcache.st_size == 0)
3113 I32 result = my_stat();
3117 #if Off_t_size > IVSIZE
3118 PUSHn(PL_statcache.st_size);
3120 PUSHi(PL_statcache.st_size);
3127 I32 result = my_stat();
3131 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3137 I32 result = my_stat();
3141 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3147 I32 result = my_stat();
3151 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3157 I32 result = my_stat();
3161 if (S_ISSOCK(PL_statcache.st_mode))
3168 I32 result = my_stat();
3172 if (S_ISCHR(PL_statcache.st_mode))
3179 I32 result = my_stat();
3183 if (S_ISBLK(PL_statcache.st_mode))
3190 I32 result = my_stat();
3194 if (S_ISREG(PL_statcache.st_mode))
3201 I32 result = my_stat();
3205 if (S_ISDIR(PL_statcache.st_mode))
3212 I32 result = my_stat();
3216 if (S_ISFIFO(PL_statcache.st_mode))
3223 I32 result = my_lstat();
3227 if (S_ISLNK(PL_statcache.st_mode))
3236 I32 result = my_stat();
3240 if (PL_statcache.st_mode & S_ISUID)
3250 I32 result = my_stat();
3254 if (PL_statcache.st_mode & S_ISGID)
3264 I32 result = my_stat();
3268 if (PL_statcache.st_mode & S_ISVTX)
3279 char *tmps = Nullch;
3282 if (PL_op->op_flags & OPf_REF)
3284 else if (isGV(TOPs))
3286 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3287 gv = (GV*)SvRV(POPs);
3289 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
3291 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3292 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3293 else if (tmps && isDIGIT(*tmps))
3297 if (PerlLIO_isatty(fd))
3302 #if defined(atarist) /* this will work with atariST. Configure will
3303 make guesses for other systems. */
3304 # define FILE_base(f) ((f)->_base)
3305 # define FILE_ptr(f) ((f)->_ptr)
3306 # define FILE_cnt(f) ((f)->_cnt)
3307 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3317 register STDCHAR *s;
3324 if (PL_op->op_flags & OPf_REF)
3326 else if (isGV(TOPs))
3328 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3329 gv = (GV*)SvRV(POPs);
3335 if (gv == PL_defgv) {
3337 io = GvIO(PL_statgv);
3340 goto really_filename;
3345 PL_laststatval = -1;
3346 sv_setpvn(PL_statname, "", 0);
3347 io = GvIO(PL_statgv);
3349 if (io && IoIFP(io)) {
3350 if (! PerlIO_has_base(IoIFP(io)))
3351 DIE(aTHX_ "-T and -B not implemented on filehandles");
3352 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3353 if (PL_laststatval < 0)
3355 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3356 if (PL_op->op_type == OP_FTTEXT)
3361 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3362 i = PerlIO_getc(IoIFP(io));
3364 (void)PerlIO_ungetc(IoIFP(io),i);
3366 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3368 len = PerlIO_get_bufsiz(IoIFP(io));
3369 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3370 /* sfio can have large buffers - limit to 512 */
3375 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3377 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3379 SETERRNO(EBADF,RMS_IFI);
3387 PL_laststype = OP_STAT;
3388 sv_setpv(PL_statname, SvPV(sv, n_a));
3389 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3390 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3391 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3394 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3395 if (PL_laststatval < 0) {
3396 (void)PerlIO_close(fp);
3399 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3400 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3401 (void)PerlIO_close(fp);
3403 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3404 RETPUSHNO; /* special case NFS directories */
3405 RETPUSHYES; /* null file is anything */
3410 /* now scan s to look for textiness */
3411 /* XXX ASCII dependent code */
3413 #if defined(DOSISH) || defined(USEMYBINMODE)
3414 /* ignore trailing ^Z on short files */
3415 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3419 for (i = 0; i < len; i++, s++) {
3420 if (!*s) { /* null never allowed in text */
3425 else if (!(isPRINT(*s) || isSPACE(*s)))
3428 else if (*s & 128) {
3430 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3433 /* utf8 characters don't count as odd */
3434 if (UTF8_IS_START(*s)) {
3435 int ulen = UTF8SKIP(s);
3436 if (ulen < len - i) {
3438 for (j = 1; j < ulen; j++) {
3439 if (!UTF8_IS_CONTINUATION(s[j]))
3442 --ulen; /* loop does extra increment */
3452 *s != '\n' && *s != '\r' && *s != '\b' &&
3453 *s != '\t' && *s != '\f' && *s != 27)
3458 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3483 if( !tmps || !*tmps ) {
3484 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3485 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3487 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3492 deprecate("chdir('') or chdir(undef) as chdir()");
3493 tmps = SvPV(*svp, n_a);
3497 TAINT_PROPER("chdir");
3502 TAINT_PROPER("chdir");
3503 PUSHi( PerlDir_chdir(tmps) >= 0 );
3505 /* Clear the DEFAULT element of ENV so we'll get the new value
3507 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3515 dSP; dMARK; dTARGET;
3516 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3522 DIE(aTHX_ PL_no_func, "chown");
3532 TAINT_PROPER("chroot");
3533 PUSHi( chroot(tmps) >= 0 );
3536 DIE(aTHX_ PL_no_func, "chroot");
3542 dSP; dMARK; dTARGET;
3544 value = (I32)apply(PL_op->op_type, MARK, SP);
3552 dSP; dMARK; dTARGET;
3554 value = (I32)apply(PL_op->op_type, MARK, SP);
3562 dSP; dMARK; dTARGET;
3564 value = (I32)apply(PL_op->op_type, MARK, SP);
3576 char *tmps2 = POPpx;
3577 char *tmps = SvPV(TOPs, n_a);
3578 TAINT_PROPER("rename");
3580 anum = PerlLIO_rename(tmps, tmps2);
3582 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3583 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3586 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3587 (void)UNLINK(tmps2);
3588 if (!(anum = link(tmps, tmps2)))
3589 anum = UNLINK(tmps);
3602 char *tmps2 = POPpx;
3603 char *tmps = SvPV(TOPs, n_a);
3604 TAINT_PROPER("link");
3605 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3608 DIE(aTHX_ PL_no_func, "link");
3617 char *tmps2 = POPpx;
3618 char *tmps = SvPV(TOPs, n_a);
3619 TAINT_PROPER("symlink");
3620 SETi( symlink(tmps, tmps2) >= 0 );
3623 DIE(aTHX_ PL_no_func, "symlink");
3633 char buf[MAXPATHLEN];
3637 #ifndef INCOMPLETE_TAINTS
3641 len = readlink(tmps, buf, sizeof(buf) - 1);
3649 RETSETUNDEF; /* just pretend it's a normal file */
3653 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3655 S_dooneliner(pTHX_ char *cmd, char *filename)
3657 char *save_filename = filename;
3663 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3664 strcpy(cmdline, cmd);
3665 strcat(cmdline, " ");
3666 for (s = cmdline + strlen(cmdline); *filename; ) {
3671 myfp = PerlProc_popen(cmdline, "r");
3675 SV *tmpsv = sv_newmortal();
3676 /* Need to save/restore 'PL_rs' ?? */
3677 s = sv_gets(tmpsv, myfp, 0);
3678 (void)PerlProc_pclose(myfp);
3682 #ifdef HAS_SYS_ERRLIST
3687 /* you don't see this */
3689 #ifdef HAS_SYS_ERRLIST
3697 if (instr(s, errmsg)) {
3704 #define EACCES EPERM
3706 if (instr(s, "cannot make"))
3707 SETERRNO(EEXIST,RMS_FEX);
3708 else if (instr(s, "existing file"))
3709 SETERRNO(EEXIST,RMS_FEX);
3710 else if (instr(s, "ile exists"))
3711 SETERRNO(EEXIST,RMS_FEX);
3712 else if (instr(s, "non-exist"))
3713 SETERRNO(ENOENT,RMS_FNF);
3714 else if (instr(s, "does not exist"))
3715 SETERRNO(ENOENT,RMS_FNF);
3716 else if (instr(s, "not empty"))
3717 SETERRNO(EBUSY,SS_DEVOFFLINE);
3718 else if (instr(s, "cannot access"))
3719 SETERRNO(EACCES,RMS_PRV);
3721 SETERRNO(EPERM,RMS_PRV);
3724 else { /* some mkdirs return no failure indication */
3725 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3726 if (PL_op->op_type == OP_RMDIR)
3731 SETERRNO(EACCES,RMS_PRV); /* a guess */
3740 /* This macro removes trailing slashes from a directory name.
3741 * Different operating and file systems take differently to
3742 * trailing slashes. According to POSIX 1003.1 1996 Edition
3743 * any number of trailing slashes should be allowed.
3744 * Thusly we snip them away so that even non-conforming
3745 * systems are happy.
3746 * We should probably do this "filtering" for all
3747 * the functions that expect (potentially) directory names:
3748 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3749 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3751 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3752 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3755 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3756 (tmps) = savepvn((tmps), (len)); \
3776 TRIMSLASHES(tmps,len,copy);
3778 TAINT_PROPER("mkdir");
3780 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3782 SETi( dooneliner("mkdir", tmps) );
3783 oldumask = PerlLIO_umask(0);
3784 PerlLIO_umask(oldumask);
3785 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3799 TRIMSLASHES(tmps,len,copy);
3800 TAINT_PROPER("rmdir");
3802 SETi( PerlDir_rmdir(tmps) >= 0 );
3804 SETi( dooneliner("rmdir", tmps) );
3811 /* Directory calls. */
3815 #if defined(Direntry_t) && defined(HAS_READDIR)
3818 char *dirname = POPpx;
3820 register IO *io = GvIOn(gv);
3826 PerlDir_close(IoDIRP(io));
3827 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3833 SETERRNO(EBADF,RMS_DIR);
3836 DIE(aTHX_ PL_no_dir_func, "opendir");
3842 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3843 DIE(aTHX_ PL_no_dir_func, "readdir");
3845 #if !defined(I_DIRENT) && !defined(VMS)
3846 Direntry_t *readdir (DIR *);
3851 const I32 gimme = GIMME;
3852 GV *gv = (GV *)POPs;
3853 register Direntry_t *dp;
3854 register IO *io = GvIOn(gv);
3856 if (!io || !IoDIRP(io))
3860 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3864 sv = newSVpvn(dp->d_name, dp->d_namlen);
3866 sv = newSVpv(dp->d_name, 0);
3868 #ifndef INCOMPLETE_TAINTS
3869 if (!(IoFLAGS(io) & IOf_UNTAINT))
3872 XPUSHs(sv_2mortal(sv));
3874 while (gimme == G_ARRAY);
3876 if (!dp && gimme != G_ARRAY)
3883 SETERRNO(EBADF,RMS_ISI);
3884 if (GIMME == G_ARRAY)
3893 #if defined(HAS_TELLDIR) || defined(telldir)
3895 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3896 /* XXX netbsd still seemed to.
3897 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3898 --JHI 1999-Feb-02 */
3899 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3900 long telldir (DIR *);
3903 register IO *io = GvIOn(gv);
3905 if (!io || !IoDIRP(io))
3908 PUSHi( PerlDir_tell(IoDIRP(io)) );
3912 SETERRNO(EBADF,RMS_ISI);
3915 DIE(aTHX_ PL_no_dir_func, "telldir");
3921 #if defined(HAS_SEEKDIR) || defined(seekdir)
3925 register IO *io = GvIOn(gv);
3927 if (!io || !IoDIRP(io))
3930 (void)PerlDir_seek(IoDIRP(io), along);
3935 SETERRNO(EBADF,RMS_ISI);
3938 DIE(aTHX_ PL_no_dir_func, "seekdir");
3944 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3947 register IO *io = GvIOn(gv);
3949 if (!io || !IoDIRP(io))
3952 (void)PerlDir_rewind(IoDIRP(io));
3956 SETERRNO(EBADF,RMS_ISI);
3959 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3965 #if defined(Direntry_t) && defined(HAS_READDIR)
3968 register IO *io = GvIOn(gv);
3970 if (!io || !IoDIRP(io))
3973 #ifdef VOID_CLOSEDIR
3974 PerlDir_close(IoDIRP(io));
3976 if (PerlDir_close(IoDIRP(io)) < 0) {
3977 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3986 SETERRNO(EBADF,RMS_IFI);
3989 DIE(aTHX_ PL_no_dir_func, "closedir");
3993 /* Process control. */
4003 PERL_FLUSHALL_FOR_CHILD;
4004 childpid = PerlProc_fork();
4009 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4010 SvREADONLY_off(GvSV(tmpgv));
4011 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4012 SvREADONLY_on(GvSV(tmpgv));
4014 #ifdef THREADS_HAVE_PIDS
4015 PL_ppid = (IV)getppid();
4017 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4022 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4027 PERL_FLUSHALL_FOR_CHILD;
4028 childpid = PerlProc_fork();
4034 DIE(aTHX_ PL_no_func, "fork");
4041 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4046 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4047 childpid = wait4pid(-1, &argflags, 0);
4049 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4054 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4055 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4056 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4058 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4063 DIE(aTHX_ PL_no_func, "wait");
4069 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4078 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4079 result = wait4pid(pid, &argflags, optype);
4081 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4086 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4087 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4088 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4090 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4095 DIE(aTHX_ PL_no_func, "waitpid");
4101 dSP; dMARK; dORIGMARK; dTARGET;
4109 while (++MARK <= SP) {
4110 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4115 TAINT_PROPER("system");
4117 PERL_FLUSHALL_FOR_CHILD;
4118 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4123 if (PerlProc_pipe(pp) >= 0)
4125 while ((childpid = PerlProc_fork()) == -1) {
4126 if (errno != EAGAIN) {
4131 PerlLIO_close(pp[0]);
4132 PerlLIO_close(pp[1]);
4139 Sigsave_t ihand,qhand; /* place to save signals during system() */
4143 PerlLIO_close(pp[1]);
4145 rsignal_save(SIGINT, SIG_IGN, &ihand);
4146 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4149 result = wait4pid(childpid, &status, 0);
4150 } while (result == -1 && errno == EINTR);
4152 (void)rsignal_restore(SIGINT, &ihand);
4153 (void)rsignal_restore(SIGQUIT, &qhand);
4155 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4156 do_execfree(); /* free any memory child malloced on fork */
4162 while (n < sizeof(int)) {
4163 n1 = PerlLIO_read(pp[0],
4164 (void*)(((char*)&errkid)+n),
4170 PerlLIO_close(pp[0]);
4171 if (n) { /* Error */
4172 if (n != sizeof(int))
4173 DIE(aTHX_ "panic: kid popen errno read");
4174 errno = errkid; /* Propagate errno from kid */
4175 STATUS_CURRENT = -1;
4178 PUSHi(STATUS_CURRENT);
4182 PerlLIO_close(pp[0]);
4183 #if defined(HAS_FCNTL) && defined(F_SETFD)
4184 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4187 if (PL_op->op_flags & OPf_STACKED) {
4188 SV *really = *++MARK;
4189 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4191 else if (SP - MARK != 1)
4192 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4194 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4198 #else /* ! FORK or VMS or OS/2 */
4201 if (PL_op->op_flags & OPf_STACKED) {
4202 SV *really = *++MARK;
4203 # if defined(WIN32) || defined(OS2)
4204 value = (I32)do_aspawn(really, MARK, SP);
4206 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4209 else if (SP - MARK != 1) {
4210 # if defined(WIN32) || defined(OS2)
4211 value = (I32)do_aspawn(Nullsv, MARK, SP);
4213 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4217 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4219 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4221 STATUS_NATIVE_SET(value);
4224 PUSHi(result ? value : STATUS_CURRENT);
4225 #endif /* !FORK or VMS */
4231 dSP; dMARK; dORIGMARK; dTARGET;
4237 while (++MARK <= SP) {
4238 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4243 TAINT_PROPER("exec");
4245 PERL_FLUSHALL_FOR_CHILD;
4246 if (PL_op->op_flags & OPf_STACKED) {
4247 SV *really = *++MARK;
4248 value = (I32)do_aexec(really, MARK, SP);
4250 else if (SP - MARK != 1)
4252 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4256 (void ) do_aspawn(Nullsv, MARK, SP);
4260 value = (I32)do_aexec(Nullsv, MARK, SP);
4265 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4268 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4271 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4284 dSP; dMARK; dTARGET;
4286 value = (I32)apply(PL_op->op_type, MARK, SP);
4291 DIE(aTHX_ PL_no_func, "kill");
4299 # ifdef THREADS_HAVE_PIDS
4300 if (PL_ppid != 1 && getppid() == 1)
4301 /* maybe the parent process has died. Refresh ppid cache */
4305 XPUSHi( getppid() );
4309 DIE(aTHX_ PL_no_func, "getppid");
4325 pgrp = (I32)BSD_GETPGRP(pid);
4327 if (pid != 0 && pid != PerlProc_getpid())
4328 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4334 DIE(aTHX_ PL_no_func, "getpgrp()");
4353 TAINT_PROPER("setpgrp");
4355 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4357 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4358 || (pid != 0 && pid != PerlProc_getpid()))
4360 DIE(aTHX_ "setpgrp can't take arguments");
4362 SETi( setpgrp() >= 0 );
4363 #endif /* USE_BSDPGRP */
4366 DIE(aTHX_ PL_no_func, "setpgrp()");
4372 #ifdef HAS_GETPRIORITY
4376 SETi( getpriority(which, who) );
4379 DIE(aTHX_ PL_no_func, "getpriority()");
4385 #ifdef HAS_SETPRIORITY
4390 TAINT_PROPER("setpriority");
4391 SETi( setpriority(which, who, niceval) >= 0 );
4394 DIE(aTHX_ PL_no_func, "setpriority()");
4404 XPUSHn( time(Null(Time_t*)) );
4406 XPUSHi( time(Null(Time_t*)) );
4417 (void)PerlProc_times(&PL_timesbuf);
4419 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4420 /* struct tms, though same data */
4424 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4425 if (GIMME == G_ARRAY) {
4426 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4427 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4428 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4434 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4436 if (GIMME == G_ARRAY) {
4437 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4438 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4439 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4443 DIE(aTHX_ "times not implemented");
4445 #endif /* HAS_TIMES */
4457 const struct tm *tmbuf;
4458 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4459 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4460 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4466 when = (Time_t)SvNVx(POPs);
4468 when = (Time_t)SvIVx(POPs);
4471 if (PL_op->op_type == OP_LOCALTIME)
4472 tmbuf = localtime(&when);
4474 tmbuf = gmtime(&when);
4476 if (GIMME != G_ARRAY) {
4482 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4483 dayname[tmbuf->tm_wday],
4484 monname[tmbuf->tm_mon],
4489 tmbuf->tm_year + 1900);
4490 PUSHs(sv_2mortal(tsv));
4495 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4496 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4497 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4498 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4499 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4500 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4501 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4502 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4503 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4514 anum = alarm((unsigned int)anum);
4521 DIE(aTHX_ PL_no_func, "alarm");
4532 (void)time(&lasttime);
4537 PerlProc_sleep((unsigned int)duration);
4540 XPUSHi(when - lasttime);
4544 /* Shared memory. */
4558 return pp_shmwrite();
4563 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4564 dSP; dMARK; dTARGET;
4565 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4574 /* Message passing. */
4588 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4589 dSP; dMARK; dTARGET;
4590 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4601 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4602 dSP; dMARK; dTARGET;
4603 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4616 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4617 dSP; dMARK; dTARGET;
4618 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4625 DIE(aTHX_ "System V IPC is not implemented on this machine");
4631 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4632 dSP; dMARK; dTARGET;
4633 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4641 PUSHp(zero_but_true, ZBTLEN);
4651 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4652 dSP; dMARK; dTARGET;
4653 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4662 /* Get system info. */
4666 #ifdef HAS_GETHOSTBYNAME
4667 return pp_ghostent();
4669 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4675 #ifdef HAS_GETHOSTBYADDR
4676 return pp_ghostent();
4678 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4684 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4686 I32 which = PL_op->op_type;
4687 register char **elem;
4689 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4690 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4691 struct hostent *gethostbyname(Netdb_name_t);
4692 struct hostent *gethostent(void);
4694 struct hostent *hent;
4699 if (which == OP_GHBYNAME) {
4700 #ifdef HAS_GETHOSTBYNAME
4701 char* name = POPpbytex;
4702 hent = PerlSock_gethostbyname(name);
4704 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4707 else if (which == OP_GHBYADDR) {
4708 #ifdef HAS_GETHOSTBYADDR
4709 int addrtype = POPi;
4712 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4714 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4716 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4720 #ifdef HAS_GETHOSTENT
4721 hent = PerlSock_gethostent();
4723 DIE(aTHX_ PL_no_sock_func, "gethostent");
4726 #ifdef HOST_NOT_FOUND
4728 #ifdef USE_REENTRANT_API
4729 # ifdef USE_GETHOSTENT_ERRNO
4730 h_errno = PL_reentrant_buffer->_gethostent_errno;
4733 STATUS_NATIVE_SET(h_errno);
4737 if (GIMME != G_ARRAY) {
4738 PUSHs(sv = sv_newmortal());
4740 if (which == OP_GHBYNAME) {
4742 sv_setpvn(sv, hent->h_addr, hent->h_length);
4745 sv_setpv(sv, (char*)hent->h_name);
4751 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4752 sv_setpv(sv, (char*)hent->h_name);
4753 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4754 for (elem = hent->h_aliases; elem && *elem; elem++) {
4755 sv_catpv(sv, *elem);
4757 sv_catpvn(sv, " ", 1);
4759 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4760 sv_setiv(sv, (IV)hent->h_addrtype);
4761 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4762 len = hent->h_length;
4763 sv_setiv(sv, (IV)len);
4765 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4766 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4767 sv_setpvn(sv, *elem, len);
4770 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4772 sv_setpvn(sv, hent->h_addr, len);
4777 DIE(aTHX_ PL_no_sock_func, "gethostent");
4783 #ifdef HAS_GETNETBYNAME
4784 return pp_gnetent();
4786 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4792 #ifdef HAS_GETNETBYADDR
4793 return pp_gnetent();
4795 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4801 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4803 I32 which = PL_op->op_type;
4804 register char **elem;
4806 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4807 struct netent *getnetbyaddr(Netdb_net_t, int);
4808 struct netent *getnetbyname(Netdb_name_t);
4809 struct netent *getnetent(void);
4811 struct netent *nent;
4814 if (which == OP_GNBYNAME){
4815 #ifdef HAS_GETNETBYNAME
4816 char *name = POPpbytex;
4817 nent = PerlSock_getnetbyname(name);
4819 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4822 else if (which == OP_GNBYADDR) {
4823 #ifdef HAS_GETNETBYADDR
4824 int addrtype = POPi;
4825 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4826 nent = PerlSock_getnetbyaddr(addr, addrtype);
4828 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4832 #ifdef HAS_GETNETENT
4833 nent = PerlSock_getnetent();
4835 DIE(aTHX_ PL_no_sock_func, "getnetent");
4838 #ifdef HOST_NOT_FOUND
4840 #ifdef USE_REENTRANT_API
4841 # ifdef USE_GETNETENT_ERRNO
4842 h_errno = PL_reentrant_buffer->_getnetent_errno;
4845 STATUS_NATIVE_SET(h_errno);
4850 if (GIMME != G_ARRAY) {
4851 PUSHs(sv = sv_newmortal());
4853 if (which == OP_GNBYNAME)
4854 sv_setiv(sv, (IV)nent->n_net);
4856 sv_setpv(sv, nent->n_name);
4862 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4863 sv_setpv(sv, nent->n_name);
4864 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4865 for (elem = nent->n_aliases; elem && *elem; elem++) {
4866 sv_catpv(sv, *elem);
4868 sv_catpvn(sv, " ", 1);
4870 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4871 sv_setiv(sv, (IV)nent->n_addrtype);
4872 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4873 sv_setiv(sv, (IV)nent->n_net);
4878 DIE(aTHX_ PL_no_sock_func, "getnetent");
4884 #ifdef HAS_GETPROTOBYNAME
4885 return pp_gprotoent();
4887 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4893 #ifdef HAS_GETPROTOBYNUMBER
4894 return pp_gprotoent();
4896 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4902 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4904 I32 which = PL_op->op_type;
4905 register char **elem;
4907 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4908 struct protoent *getprotobyname(Netdb_name_t);
4909 struct protoent *getprotobynumber(int);
4910 struct protoent *getprotoent(void);
4912 struct protoent *pent;
4915 if (which == OP_GPBYNAME) {
4916 #ifdef HAS_GETPROTOBYNAME
4917 char* name = POPpbytex;
4918 pent = PerlSock_getprotobyname(name);
4920 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4923 else if (which == OP_GPBYNUMBER) {
4924 #ifdef HAS_GETPROTOBYNUMBER
4926 pent = PerlSock_getprotobynumber(number);
4928 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4932 #ifdef HAS_GETPROTOENT
4933 pent = PerlSock_getprotoent();
4935 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4939 if (GIMME != G_ARRAY) {
4940 PUSHs(sv = sv_newmortal());
4942 if (which == OP_GPBYNAME)
4943 sv_setiv(sv, (IV)pent->p_proto);
4945 sv_setpv(sv, pent->p_name);
4951 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4952 sv_setpv(sv, pent->p_name);
4953 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4954 for (elem = pent->p_aliases; elem && *elem; elem++) {
4955 sv_catpv(sv, *elem);
4957 sv_catpvn(sv, " ", 1);
4959 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4960 sv_setiv(sv, (IV)pent->p_proto);
4965 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4971 #ifdef HAS_GETSERVBYNAME
4972 return pp_gservent();
4974 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4980 #ifdef HAS_GETSERVBYPORT
4981 return pp_gservent();
4983 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4989 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4991 I32 which = PL_op->op_type;
4992 register char **elem;
4994 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4995 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4996 struct servent *getservbyport(int, Netdb_name_t);
4997 struct servent *getservent(void);
4999 struct servent *sent;
5002 if (which == OP_GSBYNAME) {
5003 #ifdef HAS_GETSERVBYNAME
5004 char *proto = POPpbytex;
5005 char *name = POPpbytex;
5007 if (proto && !*proto)
5010 sent = PerlSock_getservbyname(name, proto);
5012 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5015 else if (which == OP_GSBYPORT) {
5016 #ifdef HAS_GETSERVBYPORT
5017 char *proto = POPpbytex;
5018 unsigned short port = (unsigned short)POPu;
5020 if (proto && !*proto)
5024 port = PerlSock_htons(port);
5026 sent = PerlSock_getservbyport(port, proto);
5028 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5032 #ifdef HAS_GETSERVENT
5033 sent = PerlSock_getservent();
5035 DIE(aTHX_ PL_no_sock_func, "getservent");
5039 if (GIMME != G_ARRAY) {
5040 PUSHs(sv = sv_newmortal());
5042 if (which == OP_GSBYNAME) {
5044 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5046 sv_setiv(sv, (IV)(sent->s_port));
5050 sv_setpv(sv, sent->s_name);
5056 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5057 sv_setpv(sv, sent->s_name);
5058 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5059 for (elem = sent->s_aliases; elem && *elem; elem++) {
5060 sv_catpv(sv, *elem);
5062 sv_catpvn(sv, " ", 1);
5064 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5066 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5068 sv_setiv(sv, (IV)(sent->s_port));
5070 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5071 sv_setpv(sv, sent->s_proto);
5076 DIE(aTHX_ PL_no_sock_func, "getservent");
5082 #ifdef HAS_SETHOSTENT
5084 PerlSock_sethostent(TOPi);
5087 DIE(aTHX_ PL_no_sock_func, "sethostent");
5093 #ifdef HAS_SETNETENT
5095 PerlSock_setnetent(TOPi);
5098 DIE(aTHX_ PL_no_sock_func, "setnetent");
5104 #ifdef HAS_SETPROTOENT
5106 PerlSock_setprotoent(TOPi);
5109 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5115 #ifdef HAS_SETSERVENT
5117 PerlSock_setservent(TOPi);
5120 DIE(aTHX_ PL_no_sock_func, "setservent");
5126 #ifdef HAS_ENDHOSTENT
5128 PerlSock_endhostent();
5132 DIE(aTHX_ PL_no_sock_func, "endhostent");
5138 #ifdef HAS_ENDNETENT
5140 PerlSock_endnetent();
5144 DIE(aTHX_ PL_no_sock_func, "endnetent");
5150 #ifdef HAS_ENDPROTOENT
5152 PerlSock_endprotoent();
5156 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5162 #ifdef HAS_ENDSERVENT
5164 PerlSock_endservent();
5168 DIE(aTHX_ PL_no_sock_func, "endservent");
5177 DIE(aTHX_ PL_no_func, "getpwnam");
5186 DIE(aTHX_ PL_no_func, "getpwuid");
5194 I32 which = PL_op->op_type;
5197 struct passwd *pwent = NULL;
5199 * We currently support only the SysV getsp* shadow password interface.
5200 * The interface is declared in <shadow.h> and often one needs to link
5201 * with -lsecurity or some such.
5202 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5205 * AIX getpwnam() is clever enough to return the encrypted password
5206 * only if the caller (euid?) is root.
5208 * There are at least three other shadow password APIs. Many platforms
5209 * seem to contain more than one interface for accessing the shadow
5210 * password databases, possibly for compatibility reasons.
5211 * The getsp*() is by far he simplest one, the other two interfaces
5212 * are much more complicated, but also very similar to each other.
5217 * struct pr_passwd *getprpw*();
5218 * The password is in
5219 * char getprpw*(...).ufld.fd_encrypt[]
5220 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5225 * struct es_passwd *getespw*();
5226 * The password is in
5227 * char *(getespw*(...).ufld.fd_encrypt)
5228 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5231 * struct userpw *getuserpw();
5232 * The password is in
5233 * char *(getuserpw(...)).spw_upw_passwd
5234 * (but the de facto standard getpwnam() should work okay)
5236 * Mention I_PROT here so that Configure probes for it.
5238 * In HP-UX for getprpw*() the manual page claims that one should include
5239 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5240 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5241 * and pp_sys.c already includes <shadow.h> if there is such.
5243 * Note that <sys/security.h> is already probed for, but currently
5244 * it is only included in special cases.
5246 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5247 * be preferred interface, even though also the getprpw*() interface
5248 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5249 * One also needs to call set_auth_parameters() in main() before
5250 * doing anything else, whether one is using getespw*() or getprpw*().
5252 * Note that accessing the shadow databases can be magnitudes
5253 * slower than accessing the standard databases.
5258 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5259 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5260 * the pw_comment is left uninitialized. */
5261 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5267 char* name = POPpbytex;
5268 pwent = getpwnam(name);
5274 pwent = getpwuid(uid);
5278 # ifdef HAS_GETPWENT
5280 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5281 if (pwent) pwent = getpwnam(pwent->pw_name);
5284 DIE(aTHX_ PL_no_func, "getpwent");
5290 if (GIMME != G_ARRAY) {
5291 PUSHs(sv = sv_newmortal());
5293 if (which == OP_GPWNAM)
5294 # if Uid_t_sign <= 0
5295 sv_setiv(sv, (IV)pwent->pw_uid);
5297 sv_setuv(sv, (UV)pwent->pw_uid);
5300 sv_setpv(sv, pwent->pw_name);
5306 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5307 sv_setpv(sv, pwent->pw_name);
5309 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5311 /* If we have getspnam(), we try to dig up the shadow
5312 * password. If we are underprivileged, the shadow
5313 * interface will set the errno to EACCES or similar,
5314 * and return a null pointer. If this happens, we will
5315 * use the dummy password (usually "*" or "x") from the
5316 * standard password database.
5318 * In theory we could skip the shadow call completely
5319 * if euid != 0 but in practice we cannot know which
5320 * security measures are guarding the shadow databases
5321 * on a random platform.
5323 * Resist the urge to use additional shadow interfaces.
5324 * Divert the urge to writing an extension instead.
5327 /* Some AIX setups falsely(?) detect some getspnam(), which
5328 * has a different API than the Solaris/IRIX one. */
5329 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5331 struct spwd *spwent;
5332 int saverrno; /* Save and restore errno so that
5333 * underprivileged attempts seem
5334 * to have never made the unsccessful
5335 * attempt to retrieve the shadow password. */
5338 spwent = getspnam(pwent->pw_name);
5340 if (spwent && spwent->sp_pwdp)
5341 sv_setpv(sv, spwent->sp_pwdp);
5345 if (!SvPOK(sv)) /* Use the standard password, then. */
5346 sv_setpv(sv, pwent->pw_passwd);
5349 # ifndef INCOMPLETE_TAINTS
5350 /* passwd is tainted because user himself can diddle with it.
5351 * admittedly not much and in a very limited way, but nevertheless. */
5355 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5356 # if Uid_t_sign <= 0
5357 sv_setiv(sv, (IV)pwent->pw_uid);
5359 sv_setuv(sv, (UV)pwent->pw_uid);
5362 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5363 # if Uid_t_sign <= 0
5364 sv_setiv(sv, (IV)pwent->pw_gid);
5366 sv_setuv(sv, (UV)pwent->pw_gid);
5368 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5369 * because of the poor interface of the Perl getpw*(),
5370 * not because there's some standard/convention saying so.
5371 * A better interface would have been to return a hash,
5372 * but we are accursed by our history, alas. --jhi. */
5373 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5375 sv_setiv(sv, (IV)pwent->pw_change);
5378 sv_setiv(sv, (IV)pwent->pw_quota);
5381 sv_setpv(sv, pwent->pw_age);
5386 /* pw_class and pw_comment are mutually exclusive--.
5387 * see the above note for pw_change, pw_quota, and pw_age. */
5388 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5390 sv_setpv(sv, pwent->pw_class);
5393 sv_setpv(sv, pwent->pw_comment);
5397 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5399 sv_setpv(sv, pwent->pw_gecos);
5401 # ifndef INCOMPLETE_TAINTS
5402 /* pw_gecos is tainted because user himself can diddle with it. */
5406 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5407 sv_setpv(sv, pwent->pw_dir);
5409 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5410 sv_setpv(sv, pwent->pw_shell);
5411 # ifndef INCOMPLETE_TAINTS
5412 /* pw_shell is tainted because user himself can diddle with it. */
5417 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5418 sv_setiv(sv, (IV)pwent->pw_expire);
5423 DIE(aTHX_ PL_no_func, "getpwent");
5429 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5434 DIE(aTHX_ PL_no_func, "setpwent");
5440 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5445 DIE(aTHX_ PL_no_func, "endpwent");
5454 DIE(aTHX_ PL_no_func, "getgrnam");
5463 DIE(aTHX_ PL_no_func, "getgrgid");
5471 I32 which = PL_op->op_type;
5472 register char **elem;
5474 struct group *grent;
5477 if (which == OP_GGRNAM) {
5478 char* name = POPpbytex;
5479 grent = (struct group *)getgrnam(name);
5481 else if (which == OP_GGRGID) {
5483 grent = (struct group *)getgrgid(gid);
5487 grent = (struct group *)getgrent();
5489 DIE(aTHX_ PL_no_func, "getgrent");
5493 if (GIMME != G_ARRAY) {
5494 PUSHs(sv = sv_newmortal());
5496 if (which == OP_GGRNAM)
5497 sv_setiv(sv, (IV)grent->gr_gid);
5499 sv_setpv(sv, grent->gr_name);
5505 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5506 sv_setpv(sv, grent->gr_name);
5508 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5510 sv_setpv(sv, grent->gr_passwd);
5513 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5514 sv_setiv(sv, (IV)grent->gr_gid);
5516 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5517 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5518 /* In UNICOS/mk (_CRAYMPP) the multithreading
5519 * versions (getgrnam_r, getgrgid_r)
5520 * seem to return an illegal pointer
5521 * as the group members list, gr_mem.
5522 * getgrent() doesn't even have a _r version
5523 * but the gr_mem is poisonous anyway.
5524 * So yes, you cannot get the list of group
5525 * members if building multithreaded in UNICOS/mk. */
5526 for (elem = grent->gr_mem; elem && *elem; elem++) {
5527 sv_catpv(sv, *elem);
5529 sv_catpvn(sv, " ", 1);
5536 DIE(aTHX_ PL_no_func, "getgrent");
5542 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5547 DIE(aTHX_ PL_no_func, "setgrent");
5553 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5558 DIE(aTHX_ PL_no_func, "endgrent");
5568 if (!(tmps = PerlProc_getlogin()))
5570 PUSHp(tmps, strlen(tmps));
5573 DIE(aTHX_ PL_no_func, "getlogin");
5577 /* Miscellaneous. */
5582 dSP; dMARK; dORIGMARK; dTARGET;
5583 register I32 items = SP - MARK;
5584 unsigned long a[20];
5590 while (++MARK <= SP) {
5591 if (SvTAINTED(*MARK)) {
5597 TAINT_PROPER("syscall");
5600 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5601 * or where sizeof(long) != sizeof(char*). But such machines will
5602 * not likely have syscall implemented either, so who cares?
5604 while (++MARK <= SP) {
5605 if (SvNIOK(*MARK) || !i)
5606 a[i++] = SvIV(*MARK);
5607 else if (*MARK == &PL_sv_undef)
5610 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5616 DIE(aTHX_ "Too many args to syscall");
5618 DIE(aTHX_ "Too few args to syscall");
5620 retval = syscall(a[0]);
5623 retval = syscall(a[0],a[1]);
5626 retval = syscall(a[0],a[1],a[2]);
5629 retval = syscall(a[0],a[1],a[2],a[3]);
5632 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5635 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5638 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5641 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5645 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5648 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5651 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5655 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5659 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5663 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5664 a[10],a[11],a[12],a[13]);
5666 #endif /* atarist */
5672 DIE(aTHX_ PL_no_func, "syscall");
5676 #ifdef FCNTL_EMULATE_FLOCK
5678 /* XXX Emulate flock() with fcntl().
5679 What's really needed is a good file locking module.
5683 fcntl_emulate_flock(int fd, int operation)
5687 switch (operation & ~LOCK_NB) {
5689 flock.l_type = F_RDLCK;
5692 flock.l_type = F_WRLCK;
5695 flock.l_type = F_UNLCK;
5701 flock.l_whence = SEEK_SET;
5702 flock.l_start = flock.l_len = (Off_t)0;
5704 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5707 #endif /* FCNTL_EMULATE_FLOCK */
5709 #ifdef LOCKF_EMULATE_FLOCK
5711 /* XXX Emulate flock() with lockf(). This is just to increase
5712 portability of scripts. The calls are not completely
5713 interchangeable. What's really needed is a good file
5717 /* The lockf() constants might have been defined in <unistd.h>.
5718 Unfortunately, <unistd.h> causes troubles on some mixed
5719 (BSD/POSIX) systems, such as SunOS 4.1.3.
5721 Further, the lockf() constants aren't POSIX, so they might not be
5722 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5723 just stick in the SVID values and be done with it. Sigh.
5727 # define F_ULOCK 0 /* Unlock a previously locked region */
5730 # define F_LOCK 1 /* Lock a region for exclusive use */
5733 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5736 # define F_TEST 3 /* Test a region for other processes locks */
5740 lockf_emulate_flock(int fd, int operation)
5746 /* flock locks entire file so for lockf we need to do the same */
5748 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5749 if (pos > 0) /* is seekable and needs to be repositioned */
5750 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5751 pos = -1; /* seek failed, so don't seek back afterwards */
5754 switch (operation) {
5756 /* LOCK_SH - get a shared lock */
5758 /* LOCK_EX - get an exclusive lock */
5760 i = lockf (fd, F_LOCK, 0);
5763 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5764 case LOCK_SH|LOCK_NB:
5765 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5766 case LOCK_EX|LOCK_NB:
5767 i = lockf (fd, F_TLOCK, 0);
5769 if ((errno == EAGAIN) || (errno == EACCES))
5770 errno = EWOULDBLOCK;
5773 /* LOCK_UN - unlock (non-blocking is a no-op) */
5775 case LOCK_UN|LOCK_NB:
5776 i = lockf (fd, F_ULOCK, 0);
5779 /* Default - can't decipher operation */
5786 if (pos > 0) /* need to restore position of the handle */
5787 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5792 #endif /* LOCKF_EMULATE_FLOCK */
5796 * c-indentation-style: bsd
5798 * indent-tabs-mode: t
5801 * ex: set ts=8 sts=4 sw=4 noet: