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");
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_setpv(TARG, ""); /* 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 SvLEN_set(sv, SvCUR(sv)+1);
365 SvPV_renew(sv, SvLEN(sv));
370 STATUS_NATIVE_SET(PerlProc_pclose(fp));
371 TAINT; /* "I believe that this is not gratuitous!" */
374 STATUS_NATIVE_SET(-1);
375 if (gimme == G_SCALAR)
385 tryAMAGICunTARGET(iter, -1);
387 /* Note that we only ever get here if File::Glob fails to load
388 * without at the same time croaking, for some reason, or if
389 * perl was built with PERL_EXTERNAL_GLOB */
396 * The external globbing program may use things we can't control,
397 * so for security reasons we must assume the worst.
400 taint_proper(PL_no_security, "glob");
404 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
405 PL_last_in_gv = (GV*)*PL_stack_sp--;
407 SAVESPTR(PL_rs); /* This is not permanent, either. */
408 PL_rs = sv_2mortal(newSVpvn("\000", 1));
411 *SvPVX(PL_rs) = '\n';
415 result = do_readline();
422 PL_last_in_gv = cGVOP_gv;
423 return do_readline();
432 if (SP - MARK != 1) {
434 do_join(TARG, &PL_sv_no, MARK, SP);
441 tmps = SvPV(tmpsv, len);
442 if ((!tmps || !len) && PL_errgv) {
444 (void)SvUPGRADE(error, SVt_PV);
445 if (SvPOK(error) && SvCUR(error))
446 sv_catpv(error, "\t...caught");
448 tmps = SvPV(tmpsv, len);
451 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
453 Perl_warn(aTHX_ "%"SVf, tmpsv);
465 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
467 if (SP - MARK != 1) {
469 do_join(TARG, &PL_sv_no, MARK, SP);
471 tmps = SvPV(tmpsv, len);
477 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
481 (void)SvUPGRADE(error, SVt_PV);
482 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
484 SvSetSV(error,tmpsv);
485 else if (sv_isobject(error)) {
486 HV *stash = SvSTASH(SvRV(error));
487 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
489 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
490 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
497 call_sv((SV*)GvCV(gv),
498 G_SCALAR|G_EVAL|G_KEEPERR);
499 sv_setsv(error,*PL_stack_sp--);
505 if (SvPOK(error) && SvCUR(error))
506 sv_catpv(error, "\t...propagated");
508 tmps = SvPV(tmpsv, len);
512 tmpsv = sv_2mortal(newSVpvn("Died", 4));
514 DIE(aTHX_ "%"SVf, tmpsv);
534 DIE(aTHX_ PL_no_usym, "filehandle");
535 if ((io = GvIOp(gv)))
536 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
538 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
539 /* Method's args are same as ours ... */
540 /* ... except handle is replaced by the object */
541 *MARK-- = SvTIED_obj((SV*)io, mg);
545 call_method("OPEN", G_SCALAR);
558 tmps = SvPV(sv, len);
559 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, MARK+1, (SP-MARK));
562 PUSHi( (I32)PL_forkprocess );
563 else if (PL_forkprocess == 0) /* we are a new child */
582 if (gv && (io = GvIO(gv))
583 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
586 XPUSHs(SvTIED_obj((SV*)io, mg));
589 call_method("CLOSE", G_SCALAR);
595 PUSHs(boolSV(do_close(gv, TRUE)));
615 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
616 DIE(aTHX_ PL_no_usym, "filehandle");
621 do_close(rgv, FALSE);
623 do_close(wgv, FALSE);
625 if (PerlProc_pipe(fd) < 0)
628 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
629 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
630 IoOFP(rstio) = IoIFP(rstio);
631 IoIFP(wstio) = IoOFP(wstio);
632 IoTYPE(rstio) = IoTYPE_RDONLY;
633 IoTYPE(wstio) = IoTYPE_WRONLY;
635 if (!IoIFP(rstio) || !IoOFP(wstio)) {
636 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
637 else PerlLIO_close(fd[0]);
638 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
639 else PerlLIO_close(fd[1]);
642 #if defined(HAS_FCNTL) && defined(F_SETFD)
643 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
644 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
651 DIE(aTHX_ PL_no_func, "pipe");
667 if (gv && (io = GvIO(gv))
668 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
671 XPUSHs(SvTIED_obj((SV*)io, mg));
674 call_method("FILENO", G_SCALAR);
680 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) {
681 /* Can't do this because people seem to do things like
682 defined(fileno($foo)) to check whether $foo is a valid fh.
683 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
684 report_evil_fh(gv, io, PL_op->op_type);
689 PUSHi(PerlIO_fileno(fp));
700 anum = PerlLIO_umask(0);
701 (void)PerlLIO_umask(anum);
704 anum = PerlLIO_umask(POPi);
705 TAINT_PROPER("umask");
708 /* Only DIE if trying to restrict permissions on `user' (self).
709 * Otherwise it's harmless and more useful to just return undef
710 * since 'group' and 'other' concepts probably don't exist here. */
711 if (MAXARG >= 1 && (POPi & 0700))
712 DIE(aTHX_ "umask not implemented");
713 XPUSHs(&PL_sv_undef);
735 if (gv && (io = GvIO(gv))
736 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
739 XPUSHs(SvTIED_obj((SV*)io, mg));
744 call_method("BINMODE", G_SCALAR);
751 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
752 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
753 report_evil_fh(gv, io, PL_op->op_type);
754 SETERRNO(EBADF,RMS_IFI);
759 if (PerlIO_binmode(aTHX_ fp,IoTYPE(io),mode_from_discipline(discp),
760 (discp) ? SvPV_nolen(discp) : Nullch)) {
761 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
762 if (!PerlIO_binmode(aTHX_ IoOFP(io),IoTYPE(io),
763 mode_from_discipline(discp),
764 (discp) ? SvPV_nolen(discp) : Nullch)) {
786 I32 markoff = MARK - PL_stack_base;
787 const char *methname;
788 int how = PERL_MAGIC_tied;
792 switch(SvTYPE(varsv)) {
794 methname = "TIEHASH";
795 HvEITER((HV *)varsv) = Null(HE *);
798 methname = "TIEARRAY";
801 #ifdef GV_UNIQUE_CHECK
802 if (GvUNIQUE((GV*)varsv)) {
803 Perl_croak(aTHX_ "Attempt to tie unique GV");
806 methname = "TIEHANDLE";
807 how = PERL_MAGIC_tiedscalar;
808 /* For tied filehandles, we apply tiedscalar magic to the IO
809 slot of the GP rather than the GV itself. AMS 20010812 */
811 GvIOp(varsv) = newIO();
812 varsv = (SV *)GvIOp(varsv);
815 methname = "TIESCALAR";
816 how = PERL_MAGIC_tiedscalar;
820 if (sv_isobject(*MARK)) {
822 PUSHSTACKi(PERLSI_MAGIC);
824 EXTEND(SP,(I32)items);
828 call_method(methname, G_SCALAR);
831 /* Not clear why we don't call call_method here too.
832 * perhaps to get different error message ?
834 stash = gv_stashsv(*MARK, FALSE);
835 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
836 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
840 PUSHSTACKi(PERLSI_MAGIC);
842 EXTEND(SP,(I32)items);
846 call_sv((SV*)GvCV(gv), G_SCALAR);
852 if (sv_isobject(sv)) {
853 sv_unmagic(varsv, how);
854 /* Croak if a self-tie on an aggregate is attempted. */
855 if (varsv == SvRV(sv) &&
856 (SvTYPE(varsv) == SVt_PVAV ||
857 SvTYPE(varsv) == SVt_PVHV))
859 "Self-ties of arrays and hashes are not supported");
860 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
863 SP = PL_stack_base + markoff;
873 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
874 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
876 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
879 if ((mg = SvTIED_mg(sv, how))) {
880 SV *obj = SvRV(SvTIED_obj(sv, mg));
884 if ((gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE)) &&
885 isGV(gv) && (cv = GvCV(gv))) {
887 XPUSHs(SvTIED_obj((SV*)gv, mg));
888 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
891 call_sv((SV *)cv, G_VOID);
895 else if (ckWARN(WARN_UNTIE)) {
896 if (mg && SvREFCNT(obj) > 1)
897 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
898 "untie attempted while %"UVuf" inner references still exist",
899 (UV)SvREFCNT(obj) - 1 ) ;
903 sv_unmagic(sv, how) ;
912 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
913 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
915 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
918 if ((mg = SvTIED_mg(sv, how))) {
919 SV *osv = SvTIED_obj(sv, mg);
920 if (osv == mg->mg_obj)
921 osv = sv_mortalcopy(osv);
939 sv = sv_mortalcopy(&PL_sv_no);
940 sv_setpv(sv, "AnyDBM_File");
941 stash = gv_stashsv(sv, FALSE);
942 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
944 require_pv("AnyDBM_File.pm");
946 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
947 DIE(aTHX_ "No dbm on this machine");
957 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
959 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
962 call_sv((SV*)GvCV(gv), G_SCALAR);
965 if (!sv_isobject(TOPs)) {
970 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
973 call_sv((SV*)GvCV(gv), G_SCALAR);
977 if (sv_isobject(TOPs)) {
978 sv_unmagic((SV *) hv, PERL_MAGIC_tied);
979 sv_magic((SV*)hv, TOPs, PERL_MAGIC_tied, Nullch, 0);
1001 struct timeval timebuf;
1002 struct timeval *tbuf = &timebuf;
1006 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1011 # if BYTEORDER & 0xf0000
1012 # define ORDERBYTE (0x88888888 - BYTEORDER)
1014 # define ORDERBYTE (0x4444 - BYTEORDER)
1020 for (i = 1; i <= 3; i++) {
1028 /* little endians can use vecs directly */
1029 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1036 masksize = NFDBITS / NBBY;
1038 masksize = sizeof(long); /* documented int, everyone seems to use long */
1040 Zero(&fd_sets[0], 4, char*);
1043 # if SELECT_MIN_BITS == 1
1044 growsize = sizeof(fd_set);
1046 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1047 # undef SELECT_MIN_BITS
1048 # define SELECT_MIN_BITS __FD_SETSIZE
1050 /* If SELECT_MIN_BITS is greater than one we most probably will want
1051 * to align the sizes with SELECT_MIN_BITS/8 because for example
1052 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1053 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1054 * on (sets/tests/clears bits) is 32 bits. */
1055 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1063 timebuf.tv_sec = (long)value;
1064 value -= (NV)timebuf.tv_sec;
1065 timebuf.tv_usec = (long)(value * 1000000.0);
1068 tbuf = Null(struct timeval*);
1070 for (i = 1; i <= 3; i++) {
1076 else if (!SvPOK(sv))
1077 SvPV_force(sv,n_a); /* force string conversion */
1080 Sv_Grow(sv, growsize);
1084 while (++j <= growsize) {
1088 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1090 New(403, fd_sets[i], growsize, char);
1091 for (offset = 0; offset < growsize; offset += masksize) {
1092 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1093 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1096 fd_sets[i] = SvPVX(sv);
1100 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1101 /* Can't make just the (void*) conditional because that would be
1102 * cpp #if within cpp macro, and not all compilers like that. */
1103 nfound = PerlSock_select(
1105 (Select_fd_set_t) fd_sets[1],
1106 (Select_fd_set_t) fd_sets[2],
1107 (Select_fd_set_t) fd_sets[3],
1108 (void*) tbuf); /* Workaround for compiler bug. */
1110 nfound = PerlSock_select(
1112 (Select_fd_set_t) fd_sets[1],
1113 (Select_fd_set_t) fd_sets[2],
1114 (Select_fd_set_t) fd_sets[3],
1117 for (i = 1; i <= 3; i++) {
1120 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1122 for (offset = 0; offset < growsize; offset += masksize) {
1123 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1124 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1126 Safefree(fd_sets[i]);
1133 PUSHs(&PL_sv_undef);
1136 if (GIMME == G_ARRAY && tbuf) {
1137 value = (NV)(timebuf.tv_sec) +
1138 (NV)(timebuf.tv_usec) / 1000000.0;
1139 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1140 sv_setnv(sv, value);
1144 DIE(aTHX_ "select not implemented");
1149 Perl_setdefout(pTHX_ GV *gv)
1152 (void)SvREFCNT_inc(gv);
1154 SvREFCNT_dec(PL_defoutgv);
1161 GV *newdefout, *egv;
1164 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1166 egv = GvEGV(PL_defoutgv);
1171 XPUSHs(&PL_sv_undef);
1173 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1174 if (gvp && *gvp == egv) {
1175 gv_efullname4(TARG, PL_defoutgv, Nullch, TRUE);
1179 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1184 if (!GvIO(newdefout))
1185 gv_IOadd(newdefout);
1186 setdefout(newdefout);
1204 if (gv && (io = GvIO(gv))
1205 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1207 I32 gimme = GIMME_V;
1209 XPUSHs(SvTIED_obj((SV*)io, mg));
1212 call_method("GETC", gimme);
1215 if (gimme == G_SCALAR)
1216 SvSetMagicSV_nosteal(TARG, TOPs);
1219 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1220 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)
1221 && (!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)))
1222 report_evil_fh(gv, io, PL_op->op_type);
1223 SETERRNO(EBADF,RMS_IFI);
1227 sv_setpv(TARG, " ");
1228 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1229 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1230 /* Find out how many bytes the char needs */
1231 Size_t len = UTF8SKIP(SvPVX(TARG));
1234 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1235 SvCUR_set(TARG,1+len);
1245 return pp_sysread();
1249 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1251 register PERL_CONTEXT *cx;
1252 I32 gimme = GIMME_V;
1257 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1259 cx->blk_sub.retop = retop;
1260 PAD_SET_CUR(CvPADLIST(cv), 1);
1262 setdefout(gv); /* locally select filehandle so $% et al work */
1295 SV *tmpsv = sv_newmortal();
1296 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1297 name = SvPV_nolen(tmpsv);
1300 DIE(aTHX_ "Undefined format \"%s\" called", name);
1301 DIE(aTHX_ "Not a format reference");
1304 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1306 IoFLAGS(io) &= ~IOf_DIDTOP;
1307 return doform(cv,gv,PL_op->op_next);
1313 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1314 register IO *io = GvIOp(gv);
1315 PerlIO *ofp = IoOFP(io);
1319 register PERL_CONTEXT *cx;
1321 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1322 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1325 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1326 PL_formtarget != PL_toptarget)
1330 if (!IoTOP_GV(io)) {
1334 if (!IoTOP_NAME(io)) {
1335 if (!IoFMT_NAME(io))
1336 IoFMT_NAME(io) = savepv(GvNAME(gv));
1337 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1338 topgv = gv_fetchsv(topname, FALSE, SVt_PVFM);
1339 if ((topgv && GvFORM(topgv)) ||
1340 !gv_fetchpv("top",FALSE,SVt_PVFM))
1341 IoTOP_NAME(io) = savesvpv(topname);
1343 IoTOP_NAME(io) = savepvn("top", 3);
1345 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1346 if (!topgv || !GvFORM(topgv)) {
1347 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1350 IoTOP_GV(io) = topgv;
1352 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1353 I32 lines = IoLINES_LEFT(io);
1354 char *s = SvPVX(PL_formtarget);
1355 if (lines <= 0) /* Yow, header didn't even fit!!! */
1357 while (lines-- > 0) {
1358 s = strchr(s, '\n');
1364 STRLEN save = SvCUR(PL_formtarget);
1365 SvCUR_set(PL_formtarget, s - SvPVX(PL_formtarget));
1366 do_print(PL_formtarget, ofp);
1367 SvCUR_set(PL_formtarget, save);
1368 sv_chop(PL_formtarget, s);
1369 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1372 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1373 do_print(PL_formfeed, ofp);
1374 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1376 PL_formtarget = PL_toptarget;
1377 IoFLAGS(io) |= IOf_DIDTOP;
1380 DIE(aTHX_ "bad top format reference");
1385 SV *sv = sv_newmortal();
1386 gv_efullname4(sv, fgv, Nullch, FALSE);
1387 name = SvPV_nolen(sv);
1390 DIE(aTHX_ "Undefined top format \"%s\" called",name);
1393 DIE(aTHX_ "Undefined top format called");
1397 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1398 return doform(cv,gv,PL_op);
1402 POPBLOCK(cx,PL_curpm);
1408 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1410 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1411 else if (ckWARN(WARN_CLOSED))
1412 report_evil_fh(gv, io, PL_op->op_type);
1417 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1418 if (ckWARN(WARN_IO))
1419 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1421 if (!do_print(PL_formtarget, fp))
1424 FmLINES(PL_formtarget) = 0;
1425 SvCUR_set(PL_formtarget, 0);
1426 *SvEND(PL_formtarget) = '\0';
1427 if (IoFLAGS(io) & IOf_FLUSH)
1428 (void)PerlIO_flush(fp);
1433 PL_formtarget = PL_bodytarget;
1435 return cx->blk_sub.retop;
1440 dSP; dMARK; dORIGMARK;
1447 if (PL_op->op_flags & OPf_STACKED)
1452 if (gv && (io = GvIO(gv))
1453 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1455 if (MARK == ORIGMARK) {
1458 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1462 *MARK = SvTIED_obj((SV*)io, mg);
1465 call_method("PRINTF", G_SCALAR);
1468 MARK = ORIGMARK + 1;
1475 if (!(io = GvIO(gv))) {
1476 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1477 report_evil_fh(gv, io, PL_op->op_type);
1478 SETERRNO(EBADF,RMS_IFI);
1481 else if (!(fp = IoOFP(io))) {
1482 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1484 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1485 else if (ckWARN(WARN_CLOSED))
1486 report_evil_fh(gv, io, PL_op->op_type);
1488 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1492 do_sprintf(sv, SP - MARK, MARK + 1);
1493 if (!do_print(sv, fp))
1496 if (IoFLAGS(io) & IOf_FLUSH)
1497 if (PerlIO_flush(fp) == EOF)
1508 PUSHs(&PL_sv_undef);
1529 /* Need TIEHANDLE method ? */
1531 tmps = SvPV(sv, len);
1532 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1533 IoLINES(GvIOp(gv)) = 0;
1537 PUSHs(&PL_sv_undef);
1544 dSP; dMARK; dORIGMARK; dTARGET;
1551 Sock_size_t bufsize;
1560 bool charstart = FALSE;
1561 STRLEN charskip = 0;
1565 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1566 && gv && (io = GvIO(gv))
1567 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1572 *MARK = SvTIED_obj((SV*)io, mg);
1574 call_method("READ", G_SCALAR);
1587 sv_setpvn(bufsv, "", 0);
1588 length = SvIVx(*++MARK);
1591 offset = SvIVx(*++MARK);
1595 if (!io || !IoIFP(io)) {
1596 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1597 report_evil_fh(gv, io, PL_op->op_type);
1598 SETERRNO(EBADF,RMS_IFI);
1601 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1602 buffer = SvPVutf8_force(bufsv, blen);
1603 /* UTF-8 may not have been set if they are all low bytes */
1608 buffer = SvPV_force(bufsv, blen);
1609 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1612 DIE(aTHX_ "Negative length");
1620 if (PL_op->op_type == OP_RECV) {
1621 char namebuf[MAXPATHLEN];
1622 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1623 bufsize = sizeof (struct sockaddr_in);
1625 bufsize = sizeof namebuf;
1627 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1631 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1632 /* 'offset' means 'flags' here */
1633 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1634 (struct sockaddr *)namebuf, &bufsize);
1638 /* Bogus return without padding */
1639 bufsize = sizeof (struct sockaddr_in);
1641 SvCUR_set(bufsv, count);
1642 *SvEND(bufsv) = '\0';
1643 (void)SvPOK_only(bufsv);
1647 /* This should not be marked tainted if the fp is marked clean */
1648 if (!(IoFLAGS(io) & IOf_UNTAINT))
1649 SvTAINTED_on(bufsv);
1651 sv_setpvn(TARG, namebuf, bufsize);
1656 if (PL_op->op_type == OP_RECV)
1657 DIE(aTHX_ PL_no_sock_func, "recv");
1659 if (DO_UTF8(bufsv)) {
1660 /* offset adjust in characters not bytes */
1661 blen = sv_len_utf8(bufsv);
1664 if (-offset > (int)blen)
1665 DIE(aTHX_ "Offset outside string");
1668 if (DO_UTF8(bufsv)) {
1669 /* convert offset-as-chars to offset-as-bytes */
1670 if (offset >= (int)blen)
1671 offset += SvCUR(bufsv) - blen;
1673 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1676 bufsize = SvCUR(bufsv);
1677 /* Allocating length + offset + 1 isn't perfect in the case of reading
1678 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1680 (should be 2 * length + offset + 1, or possibly something longer if
1681 PL_encoding is true) */
1682 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1683 if (offset > bufsize) { /* Zero any newly allocated space */
1684 Zero(buffer+bufsize, offset-bufsize, char);
1686 buffer = buffer + offset;
1688 read_target = bufsv;
1690 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1691 concatenate it to the current buffer. */
1693 /* Truncate the existing buffer to the start of where we will be
1695 SvCUR_set(bufsv, offset);
1697 read_target = sv_newmortal();
1698 SvUPGRADE(read_target, SVt_PV);
1699 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1702 if (PL_op->op_type == OP_SYSREAD) {
1703 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1704 if (IoTYPE(io) == IoTYPE_SOCKET) {
1705 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1711 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1716 #ifdef HAS_SOCKET__bad_code_maybe
1717 if (IoTYPE(io) == IoTYPE_SOCKET) {
1718 char namebuf[MAXPATHLEN];
1719 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1720 bufsize = sizeof (struct sockaddr_in);
1722 bufsize = sizeof namebuf;
1724 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1725 (struct sockaddr *)namebuf, &bufsize);
1730 count = PerlIO_read(IoIFP(io), buffer, length);
1731 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1732 if (count == 0 && PerlIO_error(IoIFP(io)))
1736 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1737 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1740 SvCUR_set(read_target, count+(buffer - SvPVX(read_target)));
1741 *SvEND(read_target) = '\0';
1742 (void)SvPOK_only(read_target);
1743 if (fp_utf8 && !IN_BYTES) {
1744 /* Look at utf8 we got back and count the characters */
1745 char *bend = buffer + count;
1746 while (buffer < bend) {
1748 skip = UTF8SKIP(buffer);
1751 if (buffer - charskip + skip > bend) {
1752 /* partial character - try for rest of it */
1753 length = skip - (bend-buffer);
1754 offset = bend - SvPVX(bufsv);
1766 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1767 provided amount read (count) was what was requested (length)
1769 if (got < wanted && count == length) {
1770 length = wanted - got;
1771 offset = bend - SvPVX(bufsv);
1774 /* return value is character count */
1778 else if (buffer_utf8) {
1779 /* Let svcatsv upgrade the bytes we read in to utf8.
1780 The buffer is a mortal so will be freed soon. */
1781 sv_catsv_nomg(bufsv, read_target);
1784 /* This should not be marked tainted if the fp is marked clean */
1785 if (!(IoFLAGS(io) & IOf_UNTAINT))
1786 SvTAINTED_on(bufsv);
1799 int items = (SP - PL_stack_base) - TOPMARK;
1803 sv = sv_2mortal(newSViv(sv_len(*SP)));
1812 dSP; dMARK; dORIGMARK; dTARGET;
1823 if (PL_op->op_type == OP_SYSWRITE
1824 && gv && (io = GvIO(gv))
1825 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1830 *MARK = SvTIED_obj((SV*)io, mg);
1832 call_method("WRITE", G_SCALAR);
1843 #if Size_t_size > IVSIZE
1844 length = (Size_t)SvNVx(*++MARK);
1846 length = (Size_t)SvIVx(*++MARK);
1848 if ((SSize_t)length < 0)
1849 DIE(aTHX_ "Negative length");
1852 if (!io || !IoIFP(io)) {
1854 if (ckWARN(WARN_CLOSED))
1855 report_evil_fh(gv, io, PL_op->op_type);
1856 SETERRNO(EBADF,RMS_IFI);
1860 if (PerlIO_isutf8(IoIFP(io))) {
1861 if (!SvUTF8(bufsv)) {
1862 bufsv = sv_2mortal(newSVsv(bufsv));
1863 buffer = sv_2pvutf8(bufsv, &blen);
1865 buffer = SvPV(bufsv, blen);
1868 if (DO_UTF8(bufsv)) {
1869 /* Not modifying source SV, so making a temporary copy. */
1870 bufsv = sv_2mortal(newSVsv(bufsv));
1871 sv_utf8_downgrade(bufsv, FALSE);
1873 buffer = SvPV(bufsv, blen);
1876 if (PL_op->op_type == OP_SYSWRITE) {
1878 if (DO_UTF8(bufsv)) {
1879 /* length and offset are in chars */
1880 blen = sv_len_utf8(bufsv);
1883 offset = SvIVx(*++MARK);
1885 if (-offset > (IV)blen)
1886 DIE(aTHX_ "Offset outside string");
1888 } else if (offset >= (IV)blen && blen > 0)
1889 DIE(aTHX_ "Offset outside string");
1892 if (length > blen - offset)
1893 length = blen - offset;
1894 if (DO_UTF8(bufsv)) {
1895 buffer = (char*)utf8_hop((U8 *)buffer, offset);
1896 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1899 buffer = buffer+offset;
1901 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1902 if (IoTYPE(io) == IoTYPE_SOCKET) {
1903 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1909 /* See the note at doio.c:do_print about filesize limits. --jhi */
1910 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1915 else if (SP > MARK) {
1918 sockbuf = SvPVx(*++MARK, mlen);
1919 /* length is really flags */
1920 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1921 length, (struct sockaddr *)sockbuf, mlen);
1924 /* length is really flags */
1925 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1928 DIE(aTHX_ PL_no_sock_func, "send");
1934 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1935 #if Size_t_size > IVSIZE
1949 return pp_sysread();
1960 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1962 gv = PL_last_in_gv = GvEGV(PL_argvgv);
1964 if (io && !IoIFP(io)) {
1965 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1967 IoFLAGS(io) &= ~IOf_START;
1968 do_open(gv, (char *)"-", 1, FALSE, O_RDONLY, 0, Nullfp);
1969 sv_setpvn(GvSV(gv), "-", 1);
1970 SvSETMAGIC(GvSV(gv));
1972 else if (!nextargv(gv))
1977 gv = PL_last_in_gv; /* eof */
1980 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1982 if (gv && (io = GvIO(gv))
1983 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
1986 XPUSHs(SvTIED_obj((SV*)io, mg));
1989 call_method("EOF", G_SCALAR);
1995 PUSHs(boolSV(!gv || do_eof(gv)));
2009 gv = PL_last_in_gv = (GV*)POPs;
2011 if (gv && (io = GvIO(gv))
2012 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2015 XPUSHs(SvTIED_obj((SV*)io, mg));
2018 call_method("TELL", G_SCALAR);
2024 #if LSEEKSIZE > IVSIZE
2025 PUSHn( do_tell(gv) );
2027 PUSHi( do_tell(gv) );
2034 return pp_sysseek();
2043 #if LSEEKSIZE > IVSIZE
2044 Off_t offset = (Off_t)SvNVx(POPs);
2046 Off_t offset = (Off_t)SvIVx(POPs);
2050 gv = PL_last_in_gv = (GV*)POPs;
2052 if (gv && (io = GvIO(gv))
2053 && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar)))
2056 XPUSHs(SvTIED_obj((SV*)io, mg));
2057 #if LSEEKSIZE > IVSIZE
2058 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2060 XPUSHs(sv_2mortal(newSViv(offset)));
2062 XPUSHs(sv_2mortal(newSViv(whence)));
2065 call_method("SEEK", G_SCALAR);
2071 if (PL_op->op_type == OP_SEEK)
2072 PUSHs(boolSV(do_seek(gv, offset, whence)));
2074 Off_t sought = do_sysseek(gv, offset, whence);
2076 PUSHs(&PL_sv_undef);
2079 #if LSEEKSIZE > IVSIZE
2084 : newSVpvn(zero_but_true, ZBTLEN);
2085 PUSHs(sv_2mortal(sv));
2094 /* There seems to be no consensus on the length type of truncate()
2095 * and ftruncate(), both off_t and size_t have supporters. In
2096 * general one would think that when using large files, off_t is
2097 * at least as wide as size_t, so using an off_t should be okay. */
2098 /* XXX Configure probe for the length type of *truncate() needed XXX */
2101 #if Off_t_size > IVSIZE
2106 /* Checking for length < 0 is problematic as the type might or
2107 * might not be signed: if it is not, clever compilers will moan. */
2108 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2115 if (PL_op->op_flags & OPf_SPECIAL) {
2116 tmpgv = gv_fetchsv(POPs, FALSE, SVt_PVIO);
2125 TAINT_PROPER("truncate");
2126 if (!(fp = IoIFP(io))) {
2132 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2134 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2145 if (SvTYPE(sv) == SVt_PVGV) {
2146 tmpgv = (GV*)sv; /* *main::FRED for example */
2147 goto do_ftruncate_gv;
2149 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2150 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2151 goto do_ftruncate_gv;
2153 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2154 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2155 goto do_ftruncate_io;
2158 name = SvPV(sv, n_a);
2159 TAINT_PROPER("truncate");
2161 if (truncate(name, len) < 0)
2167 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
2170 if (my_chsize(tmpfd, len) < 0)
2172 PerlLIO_close(tmpfd);
2181 SETERRNO(EBADF,RMS_IFI);
2195 unsigned int func = POPu;
2196 const int optype = PL_op->op_type;
2200 IO *io = gv ? GvIOn(gv) : 0;
2202 if (!io || !argsv || !IoIFP(io)) {
2203 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2204 report_evil_fh(gv, io, PL_op->op_type);
2205 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2209 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2212 s = SvPV_force(argsv, len);
2213 need = IOCPARM_LEN(func);
2215 s = Sv_Grow(argsv, need + 1);
2216 SvCUR_set(argsv, need);
2219 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2222 retval = SvIV(argsv);
2223 s = INT2PTR(char*,retval); /* ouch */
2226 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
2228 if (optype == OP_IOCTL)
2230 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2232 DIE(aTHX_ "ioctl is not implemented");
2236 DIE(aTHX_ "fcntl is not implemented");
2238 #if defined(OS2) && defined(__EMX__)
2239 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2241 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2245 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2247 if (s[SvCUR(argsv)] != 17)
2248 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2250 s[SvCUR(argsv)] = 0; /* put our null back */
2251 SvSETMAGIC(argsv); /* Assume it has changed */
2260 PUSHp(zero_but_true, ZBTLEN);
2281 if (gv && (io = GvIO(gv)))
2288 (void)PerlIO_flush(fp);
2289 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2292 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2293 report_evil_fh(gv, io, PL_op->op_type);
2295 SETERRNO(EBADF,RMS_IFI);
2300 DIE(aTHX_ PL_no_func, "flock()");
2312 int protocol = POPi;
2318 io = gv ? GvIOn(gv) : NULL;
2321 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2322 report_evil_fh(gv, io, PL_op->op_type);
2324 do_close(gv, FALSE);
2325 SETERRNO(EBADF,LIB_INVARG);
2330 do_close(gv, FALSE);
2332 TAINT_PROPER("socket");
2333 fd = PerlSock_socket(domain, type, protocol);
2336 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2337 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2338 IoTYPE(io) = IoTYPE_SOCKET;
2339 if (!IoIFP(io) || !IoOFP(io)) {
2340 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2341 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2342 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2345 #if defined(HAS_FCNTL) && defined(F_SETFD)
2346 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2350 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2355 DIE(aTHX_ PL_no_sock_func, "socket");
2361 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2367 int protocol = POPi;
2374 io1 = gv1 ? GvIOn(gv1) : NULL;
2375 io2 = gv2 ? GvIOn(gv2) : NULL;
2376 if (!gv1 || !gv2 || !io1 || !io2) {
2377 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2379 report_evil_fh(gv1, io1, PL_op->op_type);
2381 report_evil_fh(gv1, io2, PL_op->op_type);
2384 do_close(gv1, FALSE);
2386 do_close(gv2, FALSE);
2391 do_close(gv1, FALSE);
2393 do_close(gv2, FALSE);
2395 TAINT_PROPER("socketpair");
2396 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2398 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2399 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2400 IoTYPE(io1) = IoTYPE_SOCKET;
2401 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2402 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2403 IoTYPE(io2) = IoTYPE_SOCKET;
2404 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2405 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2406 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2407 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2408 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2409 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2410 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2413 #if defined(HAS_FCNTL) && defined(F_SETFD)
2414 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2415 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2420 DIE(aTHX_ PL_no_sock_func, "socketpair");
2428 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2429 extern void GETPRIVMODE();
2430 extern void GETUSERMODE();
2435 register IO *io = GvIOn(gv);
2439 int mpeprivmode = 0;
2442 if (!io || !IoIFP(io))
2445 addr = SvPV(addrsv, len);
2446 TAINT_PROPER("bind");
2447 #ifdef MPE /* Deal with MPE bind() peculiarities */
2448 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2449 /* The address *MUST* stupidly be zero. */
2450 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2451 /* PRIV mode is required to bind() to ports < 1024. */
2452 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2453 ((struct sockaddr_in *)addr)->sin_port > 0) {
2454 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2459 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2460 (struct sockaddr *)addr, len) >= 0)
2463 #ifdef MPE /* Switch back to USER mode */
2474 if (ckWARN(WARN_CLOSED))
2475 report_evil_fh(gv, io, PL_op->op_type);
2476 SETERRNO(EBADF,SS_IVCHAN);
2479 DIE(aTHX_ PL_no_sock_func, "bind");
2490 register IO *io = GvIOn(gv);
2493 if (!io || !IoIFP(io))
2496 addr = SvPV(addrsv, len);
2497 TAINT_PROPER("connect");
2498 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2504 if (ckWARN(WARN_CLOSED))
2505 report_evil_fh(gv, io, PL_op->op_type);
2506 SETERRNO(EBADF,SS_IVCHAN);
2509 DIE(aTHX_ PL_no_sock_func, "connect");
2519 register IO *io = gv ? GvIOn(gv) : NULL;
2521 if (!gv || !io || !IoIFP(io))
2524 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2530 if (ckWARN(WARN_CLOSED))
2531 report_evil_fh(gv, io, PL_op->op_type);
2532 SETERRNO(EBADF,SS_IVCHAN);
2535 DIE(aTHX_ PL_no_sock_func, "listen");
2547 char namebuf[MAXPATHLEN];
2548 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
2549 Sock_size_t len = sizeof (struct sockaddr_in);
2551 Sock_size_t len = sizeof namebuf;
2564 if (!gstio || !IoIFP(gstio))
2568 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2572 do_close(ngv, FALSE);
2573 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2574 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2575 IoTYPE(nstio) = IoTYPE_SOCKET;
2576 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2577 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2578 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2579 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2582 #if defined(HAS_FCNTL) && defined(F_SETFD)
2583 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2587 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2588 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2590 #ifdef __SCO_VERSION__
2591 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2594 PUSHp(namebuf, len);
2598 if (ckWARN(WARN_CLOSED))
2599 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2600 SETERRNO(EBADF,SS_IVCHAN);
2606 DIE(aTHX_ PL_no_sock_func, "accept");
2616 register IO *io = GvIOn(gv);
2618 if (!io || !IoIFP(io))
2621 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2625 if (ckWARN(WARN_CLOSED))
2626 report_evil_fh(gv, io, PL_op->op_type);
2627 SETERRNO(EBADF,SS_IVCHAN);
2630 DIE(aTHX_ PL_no_sock_func, "shutdown");
2637 return pp_ssockopt();
2639 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2647 int optype = PL_op->op_type;
2650 unsigned int optname;
2656 if (optype == OP_GSOCKOPT)
2657 sv = sv_2mortal(NEWSV(22, 257));
2660 optname = (unsigned int) POPi;
2661 lvl = (unsigned int) POPi;
2665 if (!io || !IoIFP(io))
2668 fd = PerlIO_fileno(IoIFP(io));
2672 (void)SvPOK_only(sv);
2676 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2691 aint = (int)SvIV(sv);
2695 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2704 if (ckWARN(WARN_CLOSED))
2705 report_evil_fh(gv, io, optype);
2706 SETERRNO(EBADF,SS_IVCHAN);
2711 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2718 return pp_getpeername();
2720 DIE(aTHX_ PL_no_sock_func, "getsockname");
2728 int optype = PL_op->op_type;
2732 register IO *io = GvIOn(gv);
2735 if (!io || !IoIFP(io))
2738 sv = sv_2mortal(NEWSV(22, 257));
2739 (void)SvPOK_only(sv);
2743 fd = PerlIO_fileno(IoIFP(io));
2745 case OP_GETSOCKNAME:
2746 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2749 case OP_GETPEERNAME:
2750 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2752 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2754 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";
2755 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2756 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2757 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2758 sizeof(u_short) + sizeof(struct in_addr))) {
2765 #ifdef BOGUS_GETNAME_RETURN
2766 /* Interactive Unix, getpeername() and getsockname()
2767 does not return valid namelen */
2768 if (len == BOGUS_GETNAME_RETURN)
2769 len = sizeof(struct sockaddr);
2777 if (ckWARN(WARN_CLOSED))
2778 report_evil_fh(gv, io, optype);
2779 SETERRNO(EBADF,SS_IVCHAN);
2784 DIE(aTHX_ PL_no_sock_func, "getpeername");
2803 if (PL_op->op_flags & OPf_REF) {
2805 if (PL_op->op_type == OP_LSTAT) {
2806 if (gv != PL_defgv) {
2807 if (ckWARN(WARN_IO))
2808 Perl_warner(aTHX_ packWARN(WARN_IO),
2809 "lstat() on filehandle %s", GvENAME(gv));
2810 } else if (PL_laststype != OP_LSTAT)
2811 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2815 if (gv != PL_defgv) {
2816 PL_laststype = OP_STAT;
2818 sv_setpv(PL_statname, "");
2819 PL_laststatval = (GvIO(gv) && IoIFP(GvIOp(gv))
2820 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(gv))), &PL_statcache) : -1);
2822 if (PL_laststatval < 0) {
2823 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2824 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2830 if (SvTYPE(sv) == SVt_PVGV) {
2834 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2836 if (PL_op->op_type == OP_LSTAT && ckWARN(WARN_IO))
2837 Perl_warner(aTHX_ packWARN(WARN_IO),
2838 "lstat() on filehandle %s", GvENAME(gv));
2841 sv_setpv(PL_statname, SvPV(sv,n_a));
2843 PL_laststype = PL_op->op_type;
2844 if (PL_op->op_type == OP_LSTAT)
2845 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2847 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2848 if (PL_laststatval < 0) {
2849 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2850 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2856 if (gimme != G_ARRAY) {
2857 if (gimme != G_VOID)
2858 XPUSHs(boolSV(max));
2864 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2865 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2866 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2867 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2868 #if Uid_t_size > IVSIZE
2869 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2871 # if Uid_t_sign <= 0
2872 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2874 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2877 #if Gid_t_size > IVSIZE
2878 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2880 # if Gid_t_sign <= 0
2881 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2883 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2886 #ifdef USE_STAT_RDEV
2887 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2889 PUSHs(sv_2mortal(newSVpvn("", 0)));
2891 #if Off_t_size > IVSIZE
2892 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2894 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2897 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2898 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2899 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2901 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2902 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2903 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2905 #ifdef USE_STAT_BLOCKS
2906 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2907 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2909 PUSHs(sv_2mortal(newSVpvn("", 0)));
2910 PUSHs(sv_2mortal(newSVpvn("", 0)));
2916 /* This macro is used by the stacked filetest operators :
2917 * if the previous filetest failed, short-circuit and pass its value.
2918 * Else, discard it from the stack and continue. --rgs
2920 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2921 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2922 else { (void)POPs; PUTBACK; } \
2929 STACKED_FTEST_CHECK;
2930 #if defined(HAS_ACCESS) && defined(R_OK)
2931 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2933 result = access(POPpx, R_OK);
2948 if (cando(S_IRUSR, 0, &PL_statcache))
2957 STACKED_FTEST_CHECK;
2958 #if defined(HAS_ACCESS) && defined(W_OK)
2959 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2961 result = access(POPpx, W_OK);
2976 if (cando(S_IWUSR, 0, &PL_statcache))
2985 STACKED_FTEST_CHECK;
2986 #if defined(HAS_ACCESS) && defined(X_OK)
2987 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
2989 result = access(POPpx, X_OK);
3004 if (cando(S_IXUSR, 0, &PL_statcache))
3013 STACKED_FTEST_CHECK;
3014 #ifdef PERL_EFF_ACCESS_R_OK
3015 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3017 result = PERL_EFF_ACCESS_R_OK(POPpx);
3032 if (cando(S_IRUSR, 1, &PL_statcache))
3041 STACKED_FTEST_CHECK;
3042 #ifdef PERL_EFF_ACCESS_W_OK
3043 if ((PL_op->op_private & OPpFT_ACCESS) && SvPOK(TOPs)) {
3045 result = PERL_EFF_ACCESS_W_OK(POPpx);
3060 if (cando(S_IWUSR, 1, &PL_statcache))
3069 STACKED_FTEST_CHECK;
3070 #ifdef PERL_EFF_ACCESS_X_OK
3071 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)) {
3360 char *tmps = SvPV(tmpsv, n_a);
3368 if (PerlLIO_isatty(fd))
3373 #if defined(atarist) /* this will work with atariST. Configure will
3374 make guesses for other systems. */
3375 # define FILE_base(f) ((f)->_base)
3376 # define FILE_ptr(f) ((f)->_ptr)
3377 # define FILE_cnt(f) ((f)->_cnt)
3378 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3388 register STDCHAR *s;
3395 STACKED_FTEST_CHECK;
3397 if (PL_op->op_flags & OPf_REF)
3399 else if (isGV(TOPs))
3401 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3402 gv = (GV*)SvRV(POPs);
3408 if (gv == PL_defgv) {
3410 io = GvIO(PL_statgv);
3413 goto really_filename;
3418 PL_laststatval = -1;
3419 sv_setpv(PL_statname, "");
3420 io = GvIO(PL_statgv);
3422 if (io && IoIFP(io)) {
3423 if (! PerlIO_has_base(IoIFP(io)))
3424 DIE(aTHX_ "-T and -B not implemented on filehandles");
3425 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3426 if (PL_laststatval < 0)
3428 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3429 if (PL_op->op_type == OP_FTTEXT)
3434 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3435 i = PerlIO_getc(IoIFP(io));
3437 (void)PerlIO_ungetc(IoIFP(io),i);
3439 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3441 len = PerlIO_get_bufsiz(IoIFP(io));
3442 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3443 /* sfio can have large buffers - limit to 512 */
3448 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3450 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3452 SETERRNO(EBADF,RMS_IFI);
3460 PL_laststype = OP_STAT;
3461 sv_setpv(PL_statname, SvPV(sv, n_a));
3462 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3463 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
3464 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3467 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3468 if (PL_laststatval < 0) {
3469 (void)PerlIO_close(fp);
3472 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, Nullch);
3473 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3474 (void)PerlIO_close(fp);
3476 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3477 RETPUSHNO; /* special case NFS directories */
3478 RETPUSHYES; /* null file is anything */
3483 /* now scan s to look for textiness */
3484 /* XXX ASCII dependent code */
3486 #if defined(DOSISH) || defined(USEMYBINMODE)
3487 /* ignore trailing ^Z on short files */
3488 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3492 for (i = 0; i < len; i++, s++) {
3493 if (!*s) { /* null never allowed in text */
3498 else if (!(isPRINT(*s) || isSPACE(*s)))
3501 else if (*s & 128) {
3503 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3506 /* utf8 characters don't count as odd */
3507 if (UTF8_IS_START(*s)) {
3508 int ulen = UTF8SKIP(s);
3509 if (ulen < len - i) {
3511 for (j = 1; j < ulen; j++) {
3512 if (!UTF8_IS_CONTINUATION(s[j]))
3515 --ulen; /* loop does extra increment */
3525 *s != '\n' && *s != '\r' && *s != '\b' &&
3526 *s != '\t' && *s != '\f' && *s != 27)
3531 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3556 if( !tmps || !*tmps ) {
3557 if ( (svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE))
3558 || (svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE))
3560 || (svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE))
3565 deprecate("chdir('') or chdir(undef) as chdir()");
3566 tmps = SvPV(*svp, n_a);
3570 TAINT_PROPER("chdir");
3575 TAINT_PROPER("chdir");
3576 PUSHi( PerlDir_chdir(tmps) >= 0 );
3578 /* Clear the DEFAULT element of ENV so we'll get the new value
3580 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3588 dSP; dMARK; dTARGET;
3589 I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3595 DIE(aTHX_ PL_no_func, "chown");
3605 TAINT_PROPER("chroot");
3606 PUSHi( chroot(tmps) >= 0 );
3609 DIE(aTHX_ PL_no_func, "chroot");
3615 dSP; dMARK; dTARGET;
3617 value = (I32)apply(PL_op->op_type, MARK, SP);
3625 dSP; dMARK; dTARGET;
3627 value = (I32)apply(PL_op->op_type, MARK, SP);
3635 dSP; dMARK; dTARGET;
3637 value = (I32)apply(PL_op->op_type, MARK, SP);
3649 char *tmps2 = POPpx;
3650 char *tmps = SvPV(TOPs, n_a);
3651 TAINT_PROPER("rename");
3653 anum = PerlLIO_rename(tmps, tmps2);
3655 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3656 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3659 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3660 (void)UNLINK(tmps2);
3661 if (!(anum = link(tmps, tmps2)))
3662 anum = UNLINK(tmps);
3675 char *tmps2 = POPpx;
3676 char *tmps = SvPV(TOPs, n_a);
3677 TAINT_PROPER("link");
3678 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3681 DIE(aTHX_ PL_no_func, "link");
3690 char *tmps2 = POPpx;
3691 char *tmps = SvPV(TOPs, n_a);
3692 TAINT_PROPER("symlink");
3693 SETi( symlink(tmps, tmps2) >= 0 );
3696 DIE(aTHX_ PL_no_func, "symlink");
3706 char buf[MAXPATHLEN];
3710 #ifndef INCOMPLETE_TAINTS
3714 len = readlink(tmps, buf, sizeof(buf) - 1);
3722 RETSETUNDEF; /* just pretend it's a normal file */
3726 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3728 S_dooneliner(pTHX_ char *cmd, char *filename)
3730 char *save_filename = filename;
3736 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3737 strcpy(cmdline, cmd);
3738 strcat(cmdline, " ");
3739 for (s = cmdline + strlen(cmdline); *filename; ) {
3744 myfp = PerlProc_popen(cmdline, "r");
3748 SV *tmpsv = sv_newmortal();
3749 /* Need to save/restore 'PL_rs' ?? */
3750 s = sv_gets(tmpsv, myfp, 0);
3751 (void)PerlProc_pclose(myfp);
3755 #ifdef HAS_SYS_ERRLIST
3760 /* you don't see this */
3762 #ifdef HAS_SYS_ERRLIST
3770 if (instr(s, errmsg)) {
3777 #define EACCES EPERM
3779 if (instr(s, "cannot make"))
3780 SETERRNO(EEXIST,RMS_FEX);
3781 else if (instr(s, "existing file"))
3782 SETERRNO(EEXIST,RMS_FEX);
3783 else if (instr(s, "ile exists"))
3784 SETERRNO(EEXIST,RMS_FEX);
3785 else if (instr(s, "non-exist"))
3786 SETERRNO(ENOENT,RMS_FNF);
3787 else if (instr(s, "does not exist"))
3788 SETERRNO(ENOENT,RMS_FNF);
3789 else if (instr(s, "not empty"))
3790 SETERRNO(EBUSY,SS_DEVOFFLINE);
3791 else if (instr(s, "cannot access"))
3792 SETERRNO(EACCES,RMS_PRV);
3794 SETERRNO(EPERM,RMS_PRV);
3797 else { /* some mkdirs return no failure indication */
3798 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3799 if (PL_op->op_type == OP_RMDIR)
3804 SETERRNO(EACCES,RMS_PRV); /* a guess */
3813 /* This macro removes trailing slashes from a directory name.
3814 * Different operating and file systems take differently to
3815 * trailing slashes. According to POSIX 1003.1 1996 Edition
3816 * any number of trailing slashes should be allowed.
3817 * Thusly we snip them away so that even non-conforming
3818 * systems are happy.
3819 * We should probably do this "filtering" for all
3820 * the functions that expect (potentially) directory names:
3821 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3822 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3824 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV(TOPs, (len)); \
3825 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3828 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3829 (tmps) = savepvn((tmps), (len)); \
3849 TRIMSLASHES(tmps,len,copy);
3851 TAINT_PROPER("mkdir");
3853 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3855 SETi( dooneliner("mkdir", tmps) );
3856 oldumask = PerlLIO_umask(0);
3857 PerlLIO_umask(oldumask);
3858 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3872 TRIMSLASHES(tmps,len,copy);
3873 TAINT_PROPER("rmdir");
3875 SETi( PerlDir_rmdir(tmps) >= 0 );
3877 SETi( dooneliner("rmdir", tmps) );
3884 /* Directory calls. */
3888 #if defined(Direntry_t) && defined(HAS_READDIR)
3891 char *dirname = POPpx;
3893 register IO *io = GvIOn(gv);
3899 PerlDir_close(IoDIRP(io));
3900 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3906 SETERRNO(EBADF,RMS_DIR);
3909 DIE(aTHX_ PL_no_dir_func, "opendir");
3915 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3916 DIE(aTHX_ PL_no_dir_func, "readdir");
3918 #if !defined(I_DIRENT) && !defined(VMS)
3919 Direntry_t *readdir (DIR *);
3925 GV *gv = (GV *)POPs;
3926 register Direntry_t *dp;
3927 register IO *io = GvIOn(gv);
3929 if (!io || !IoDIRP(io))
3933 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3937 sv = newSVpvn(dp->d_name, dp->d_namlen);
3939 sv = newSVpv(dp->d_name, 0);
3941 #ifndef INCOMPLETE_TAINTS
3942 if (!(IoFLAGS(io) & IOf_UNTAINT))
3945 XPUSHs(sv_2mortal(sv));
3947 while (gimme == G_ARRAY);
3949 if (!dp && gimme != G_ARRAY)
3956 SETERRNO(EBADF,RMS_ISI);
3957 if (GIMME == G_ARRAY)
3966 #if defined(HAS_TELLDIR) || defined(telldir)
3968 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3969 /* XXX netbsd still seemed to.
3970 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3971 --JHI 1999-Feb-02 */
3972 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3973 long telldir (DIR *);
3976 register IO *io = GvIOn(gv);
3978 if (!io || !IoDIRP(io))
3981 PUSHi( PerlDir_tell(IoDIRP(io)) );
3985 SETERRNO(EBADF,RMS_ISI);
3988 DIE(aTHX_ PL_no_dir_func, "telldir");
3994 #if defined(HAS_SEEKDIR) || defined(seekdir)
3998 register IO *io = GvIOn(gv);
4000 if (!io || !IoDIRP(io))
4003 (void)PerlDir_seek(IoDIRP(io), along);
4008 SETERRNO(EBADF,RMS_ISI);
4011 DIE(aTHX_ PL_no_dir_func, "seekdir");
4017 #if defined(HAS_REWINDDIR) || defined(rewinddir)
4020 register IO *io = GvIOn(gv);
4022 if (!io || !IoDIRP(io))
4025 (void)PerlDir_rewind(IoDIRP(io));
4029 SETERRNO(EBADF,RMS_ISI);
4032 DIE(aTHX_ PL_no_dir_func, "rewinddir");
4038 #if defined(Direntry_t) && defined(HAS_READDIR)
4041 register IO *io = GvIOn(gv);
4043 if (!io || !IoDIRP(io))
4046 #ifdef VOID_CLOSEDIR
4047 PerlDir_close(IoDIRP(io));
4049 if (PerlDir_close(IoDIRP(io)) < 0) {
4050 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
4059 SETERRNO(EBADF,RMS_IFI);
4062 DIE(aTHX_ PL_no_dir_func, "closedir");
4066 /* Process control. */
4076 PERL_FLUSHALL_FOR_CHILD;
4077 childpid = PerlProc_fork();
4082 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV))) {
4083 SvREADONLY_off(GvSV(tmpgv));
4084 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
4085 SvREADONLY_on(GvSV(tmpgv));
4087 #ifdef THREADS_HAVE_PIDS
4088 PL_ppid = (IV)getppid();
4090 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
4095 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4100 PERL_FLUSHALL_FOR_CHILD;
4101 childpid = PerlProc_fork();
4107 DIE(aTHX_ PL_no_func, "fork");
4114 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4119 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4120 childpid = wait4pid(-1, &argflags, 0);
4122 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4127 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4128 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4129 STATUS_NATIVE_SET((childpid && childpid != -1) ? argflags : -1);
4131 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
4136 DIE(aTHX_ PL_no_func, "wait");
4142 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
4151 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4152 result = wait4pid(pid, &argflags, optype);
4154 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4159 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4160 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4161 STATUS_NATIVE_SET((result && result != -1) ? argflags : -1);
4163 STATUS_NATIVE_SET((result > 0) ? argflags : -1);
4168 DIE(aTHX_ PL_no_func, "waitpid");
4174 dSP; dMARK; dORIGMARK; dTARGET;
4182 while (++MARK <= SP) {
4183 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4188 TAINT_PROPER("system");
4190 PERL_FLUSHALL_FOR_CHILD;
4191 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4196 if (PerlProc_pipe(pp) >= 0)
4198 while ((childpid = PerlProc_fork()) == -1) {
4199 if (errno != EAGAIN) {
4204 PerlLIO_close(pp[0]);
4205 PerlLIO_close(pp[1]);
4212 Sigsave_t ihand,qhand; /* place to save signals during system() */
4216 PerlLIO_close(pp[1]);
4218 rsignal_save(SIGINT, SIG_IGN, &ihand);
4219 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
4222 result = wait4pid(childpid, &status, 0);
4223 } while (result == -1 && errno == EINTR);
4225 (void)rsignal_restore(SIGINT, &ihand);
4226 (void)rsignal_restore(SIGQUIT, &qhand);
4228 STATUS_NATIVE_SET(result == -1 ? -1 : status);
4229 do_execfree(); /* free any memory child malloced on fork */
4235 while (n < sizeof(int)) {
4236 n1 = PerlLIO_read(pp[0],
4237 (void*)(((char*)&errkid)+n),
4243 PerlLIO_close(pp[0]);
4244 if (n) { /* Error */
4245 if (n != sizeof(int))
4246 DIE(aTHX_ "panic: kid popen errno read");
4247 errno = errkid; /* Propagate errno from kid */
4248 STATUS_CURRENT = -1;
4251 PUSHi(STATUS_CURRENT);
4255 PerlLIO_close(pp[0]);
4256 #if defined(HAS_FCNTL) && defined(F_SETFD)
4257 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4260 if (PL_op->op_flags & OPf_STACKED) {
4261 SV *really = *++MARK;
4262 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4264 else if (SP - MARK != 1)
4265 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
4267 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
4271 #else /* ! FORK or VMS or OS/2 */
4274 if (PL_op->op_flags & OPf_STACKED) {
4275 SV *really = *++MARK;
4276 # if defined(WIN32) || defined(OS2)
4277 value = (I32)do_aspawn(really, MARK, SP);
4279 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4282 else if (SP - MARK != 1) {
4283 # if defined(WIN32) || defined(OS2)
4284 value = (I32)do_aspawn(Nullsv, MARK, SP);
4286 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
4290 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4292 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4294 STATUS_NATIVE_SET(value);
4297 PUSHi(result ? value : STATUS_CURRENT);
4298 #endif /* !FORK or VMS */
4304 dSP; dMARK; dORIGMARK; dTARGET;
4310 while (++MARK <= SP) {
4311 (void)SvPV_nolen(*MARK); /* stringify for taint check */
4316 TAINT_PROPER("exec");
4318 PERL_FLUSHALL_FOR_CHILD;
4319 if (PL_op->op_flags & OPf_STACKED) {
4320 SV *really = *++MARK;
4321 value = (I32)do_aexec(really, MARK, SP);
4323 else if (SP - MARK != 1)
4325 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
4329 (void ) do_aspawn(Nullsv, MARK, SP);
4333 value = (I32)do_aexec(Nullsv, MARK, SP);
4338 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4341 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
4344 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
4357 dSP; dMARK; dTARGET;
4359 value = (I32)apply(PL_op->op_type, MARK, SP);
4364 DIE(aTHX_ PL_no_func, "kill");
4372 # ifdef THREADS_HAVE_PIDS
4375 XPUSHi( getppid() );
4379 DIE(aTHX_ PL_no_func, "getppid");
4395 pgrp = (I32)BSD_GETPGRP(pid);
4397 if (pid != 0 && pid != PerlProc_getpid())
4398 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4404 DIE(aTHX_ PL_no_func, "getpgrp()");
4423 TAINT_PROPER("setpgrp");
4425 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4427 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4428 || (pid != 0 && pid != PerlProc_getpid()))
4430 DIE(aTHX_ "setpgrp can't take arguments");
4432 SETi( setpgrp() >= 0 );
4433 #endif /* USE_BSDPGRP */
4436 DIE(aTHX_ PL_no_func, "setpgrp()");
4442 #ifdef HAS_GETPRIORITY
4446 SETi( getpriority(which, who) );
4449 DIE(aTHX_ PL_no_func, "getpriority()");
4455 #ifdef HAS_SETPRIORITY
4460 TAINT_PROPER("setpriority");
4461 SETi( setpriority(which, who, niceval) >= 0 );
4464 DIE(aTHX_ PL_no_func, "setpriority()");
4474 XPUSHn( time(Null(Time_t*)) );
4476 XPUSHi( time(Null(Time_t*)) );
4487 (void)PerlProc_times(&PL_timesbuf);
4489 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4490 /* struct tms, though same data */
4494 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4495 if (GIMME == G_ARRAY) {
4496 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4497 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4498 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4504 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4506 if (GIMME == G_ARRAY) {
4507 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4508 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4509 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4513 DIE(aTHX_ "times not implemented");
4515 #endif /* HAS_TIMES */
4527 const struct tm *tmbuf;
4528 static const char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4529 static const char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4530 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4536 when = (Time_t)SvNVx(POPs);
4538 when = (Time_t)SvIVx(POPs);
4541 if (PL_op->op_type == OP_LOCALTIME)
4542 tmbuf = localtime(&when);
4544 tmbuf = gmtime(&when);
4546 if (GIMME != G_ARRAY) {
4552 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4553 dayname[tmbuf->tm_wday],
4554 monname[tmbuf->tm_mon],
4559 tmbuf->tm_year + 1900);
4560 PUSHs(sv_2mortal(tsv));
4565 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4566 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4567 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4568 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4569 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4570 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4571 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4572 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4573 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4584 anum = alarm((unsigned int)anum);
4591 DIE(aTHX_ PL_no_func, "alarm");
4602 (void)time(&lasttime);
4607 PerlProc_sleep((unsigned int)duration);
4610 XPUSHi(when - lasttime);
4614 /* Shared memory. */
4628 return pp_shmwrite();
4633 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4634 dSP; dMARK; dTARGET;
4635 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4644 /* Message passing. */
4658 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4659 dSP; dMARK; dTARGET;
4660 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4671 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4672 dSP; dMARK; dTARGET;
4673 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4686 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4687 dSP; dMARK; dTARGET;
4688 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4695 DIE(aTHX_ "System V IPC is not implemented on this machine");
4701 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4702 dSP; dMARK; dTARGET;
4703 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4711 PUSHp(zero_but_true, ZBTLEN);
4721 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4722 dSP; dMARK; dTARGET;
4723 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4732 /* Get system info. */
4736 #ifdef HAS_GETHOSTBYNAME
4737 return pp_ghostent();
4739 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4745 #ifdef HAS_GETHOSTBYADDR
4746 return pp_ghostent();
4748 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4754 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4756 I32 which = PL_op->op_type;
4757 register char **elem;
4759 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4760 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4761 struct hostent *gethostbyname(Netdb_name_t);
4762 struct hostent *gethostent(void);
4764 struct hostent *hent;
4769 if (which == OP_GHBYNAME) {
4770 #ifdef HAS_GETHOSTBYNAME
4771 char* name = POPpbytex;
4772 hent = PerlSock_gethostbyname(name);
4774 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4777 else if (which == OP_GHBYADDR) {
4778 #ifdef HAS_GETHOSTBYADDR
4779 int addrtype = POPi;
4782 Netdb_host_t addr = (Netdb_host_t) SvPVbyte(addrsv, addrlen);
4784 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4786 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4790 #ifdef HAS_GETHOSTENT
4791 hent = PerlSock_gethostent();
4793 DIE(aTHX_ PL_no_sock_func, "gethostent");
4796 #ifdef HOST_NOT_FOUND
4798 #ifdef USE_REENTRANT_API
4799 # ifdef USE_GETHOSTENT_ERRNO
4800 h_errno = PL_reentrant_buffer->_gethostent_errno;
4803 STATUS_NATIVE_SET(h_errno);
4807 if (GIMME != G_ARRAY) {
4808 PUSHs(sv = sv_newmortal());
4810 if (which == OP_GHBYNAME) {
4812 sv_setpvn(sv, hent->h_addr, hent->h_length);
4815 sv_setpv(sv, (char*)hent->h_name);
4821 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4822 sv_setpv(sv, (char*)hent->h_name);
4823 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4824 for (elem = hent->h_aliases; elem && *elem; elem++) {
4825 sv_catpv(sv, *elem);
4827 sv_catpvn(sv, " ", 1);
4829 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4830 sv_setiv(sv, (IV)hent->h_addrtype);
4831 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4832 len = hent->h_length;
4833 sv_setiv(sv, (IV)len);
4835 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4836 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4837 sv_setpvn(sv, *elem, len);
4840 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4842 sv_setpvn(sv, hent->h_addr, len);
4847 DIE(aTHX_ PL_no_sock_func, "gethostent");
4853 #ifdef HAS_GETNETBYNAME
4854 return pp_gnetent();
4856 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4862 #ifdef HAS_GETNETBYADDR
4863 return pp_gnetent();
4865 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4871 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4873 I32 which = PL_op->op_type;
4874 register char **elem;
4876 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4877 struct netent *getnetbyaddr(Netdb_net_t, int);
4878 struct netent *getnetbyname(Netdb_name_t);
4879 struct netent *getnetent(void);
4881 struct netent *nent;
4884 if (which == OP_GNBYNAME){
4885 #ifdef HAS_GETNETBYNAME
4886 char *name = POPpbytex;
4887 nent = PerlSock_getnetbyname(name);
4889 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4892 else if (which == OP_GNBYADDR) {
4893 #ifdef HAS_GETNETBYADDR
4894 int addrtype = POPi;
4895 Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4896 nent = PerlSock_getnetbyaddr(addr, addrtype);
4898 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4902 #ifdef HAS_GETNETENT
4903 nent = PerlSock_getnetent();
4905 DIE(aTHX_ PL_no_sock_func, "getnetent");
4908 #ifdef HOST_NOT_FOUND
4910 #ifdef USE_REENTRANT_API
4911 # ifdef USE_GETNETENT_ERRNO
4912 h_errno = PL_reentrant_buffer->_getnetent_errno;
4915 STATUS_NATIVE_SET(h_errno);
4920 if (GIMME != G_ARRAY) {
4921 PUSHs(sv = sv_newmortal());
4923 if (which == OP_GNBYNAME)
4924 sv_setiv(sv, (IV)nent->n_net);
4926 sv_setpv(sv, nent->n_name);
4932 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4933 sv_setpv(sv, nent->n_name);
4934 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4935 for (elem = nent->n_aliases; elem && *elem; elem++) {
4936 sv_catpv(sv, *elem);
4938 sv_catpvn(sv, " ", 1);
4940 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4941 sv_setiv(sv, (IV)nent->n_addrtype);
4942 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4943 sv_setiv(sv, (IV)nent->n_net);
4948 DIE(aTHX_ PL_no_sock_func, "getnetent");
4954 #ifdef HAS_GETPROTOBYNAME
4955 return pp_gprotoent();
4957 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4963 #ifdef HAS_GETPROTOBYNUMBER
4964 return pp_gprotoent();
4966 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4972 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4974 I32 which = PL_op->op_type;
4975 register char **elem;
4977 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4978 struct protoent *getprotobyname(Netdb_name_t);
4979 struct protoent *getprotobynumber(int);
4980 struct protoent *getprotoent(void);
4982 struct protoent *pent;
4985 if (which == OP_GPBYNAME) {
4986 #ifdef HAS_GETPROTOBYNAME
4987 char* name = POPpbytex;
4988 pent = PerlSock_getprotobyname(name);
4990 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4993 else if (which == OP_GPBYNUMBER) {
4994 #ifdef HAS_GETPROTOBYNUMBER
4996 pent = PerlSock_getprotobynumber(number);
4998 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
5002 #ifdef HAS_GETPROTOENT
5003 pent = PerlSock_getprotoent();
5005 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5009 if (GIMME != G_ARRAY) {
5010 PUSHs(sv = sv_newmortal());
5012 if (which == OP_GPBYNAME)
5013 sv_setiv(sv, (IV)pent->p_proto);
5015 sv_setpv(sv, pent->p_name);
5021 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5022 sv_setpv(sv, pent->p_name);
5023 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5024 for (elem = pent->p_aliases; elem && *elem; elem++) {
5025 sv_catpv(sv, *elem);
5027 sv_catpvn(sv, " ", 1);
5029 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5030 sv_setiv(sv, (IV)pent->p_proto);
5035 DIE(aTHX_ PL_no_sock_func, "getprotoent");
5041 #ifdef HAS_GETSERVBYNAME
5042 return pp_gservent();
5044 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5050 #ifdef HAS_GETSERVBYPORT
5051 return pp_gservent();
5053 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5059 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
5061 I32 which = PL_op->op_type;
5062 register char **elem;
5064 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
5065 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
5066 struct servent *getservbyport(int, Netdb_name_t);
5067 struct servent *getservent(void);
5069 struct servent *sent;
5072 if (which == OP_GSBYNAME) {
5073 #ifdef HAS_GETSERVBYNAME
5074 char *proto = POPpbytex;
5075 char *name = POPpbytex;
5077 if (proto && !*proto)
5080 sent = PerlSock_getservbyname(name, proto);
5082 DIE(aTHX_ PL_no_sock_func, "getservbyname");
5085 else if (which == OP_GSBYPORT) {
5086 #ifdef HAS_GETSERVBYPORT
5087 char *proto = POPpbytex;
5088 unsigned short port = (unsigned short)POPu;
5090 if (proto && !*proto)
5094 port = PerlSock_htons(port);
5096 sent = PerlSock_getservbyport(port, proto);
5098 DIE(aTHX_ PL_no_sock_func, "getservbyport");
5102 #ifdef HAS_GETSERVENT
5103 sent = PerlSock_getservent();
5105 DIE(aTHX_ PL_no_sock_func, "getservent");
5109 if (GIMME != G_ARRAY) {
5110 PUSHs(sv = sv_newmortal());
5112 if (which == OP_GSBYNAME) {
5114 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5116 sv_setiv(sv, (IV)(sent->s_port));
5120 sv_setpv(sv, sent->s_name);
5126 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5127 sv_setpv(sv, sent->s_name);
5128 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5129 for (elem = sent->s_aliases; elem && *elem; elem++) {
5130 sv_catpv(sv, *elem);
5132 sv_catpvn(sv, " ", 1);
5134 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5136 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
5138 sv_setiv(sv, (IV)(sent->s_port));
5140 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5141 sv_setpv(sv, sent->s_proto);
5146 DIE(aTHX_ PL_no_sock_func, "getservent");
5152 #ifdef HAS_SETHOSTENT
5154 PerlSock_sethostent(TOPi);
5157 DIE(aTHX_ PL_no_sock_func, "sethostent");
5163 #ifdef HAS_SETNETENT
5165 PerlSock_setnetent(TOPi);
5168 DIE(aTHX_ PL_no_sock_func, "setnetent");
5174 #ifdef HAS_SETPROTOENT
5176 PerlSock_setprotoent(TOPi);
5179 DIE(aTHX_ PL_no_sock_func, "setprotoent");
5185 #ifdef HAS_SETSERVENT
5187 PerlSock_setservent(TOPi);
5190 DIE(aTHX_ PL_no_sock_func, "setservent");
5196 #ifdef HAS_ENDHOSTENT
5198 PerlSock_endhostent();
5202 DIE(aTHX_ PL_no_sock_func, "endhostent");
5208 #ifdef HAS_ENDNETENT
5210 PerlSock_endnetent();
5214 DIE(aTHX_ PL_no_sock_func, "endnetent");
5220 #ifdef HAS_ENDPROTOENT
5222 PerlSock_endprotoent();
5226 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5232 #ifdef HAS_ENDSERVENT
5234 PerlSock_endservent();
5238 DIE(aTHX_ PL_no_sock_func, "endservent");
5247 DIE(aTHX_ PL_no_func, "getpwnam");
5256 DIE(aTHX_ PL_no_func, "getpwuid");
5264 I32 which = PL_op->op_type;
5267 struct passwd *pwent = NULL;
5269 * We currently support only the SysV getsp* shadow password interface.
5270 * The interface is declared in <shadow.h> and often one needs to link
5271 * with -lsecurity or some such.
5272 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5275 * AIX getpwnam() is clever enough to return the encrypted password
5276 * only if the caller (euid?) is root.
5278 * There are at least three other shadow password APIs. Many platforms
5279 * seem to contain more than one interface for accessing the shadow
5280 * password databases, possibly for compatibility reasons.
5281 * The getsp*() is by far he simplest one, the other two interfaces
5282 * are much more complicated, but also very similar to each other.
5287 * struct pr_passwd *getprpw*();
5288 * The password is in
5289 * char getprpw*(...).ufld.fd_encrypt[]
5290 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5295 * struct es_passwd *getespw*();
5296 * The password is in
5297 * char *(getespw*(...).ufld.fd_encrypt)
5298 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5301 * struct userpw *getuserpw();
5302 * The password is in
5303 * char *(getuserpw(...)).spw_upw_passwd
5304 * (but the de facto standard getpwnam() should work okay)
5306 * Mention I_PROT here so that Configure probes for it.
5308 * In HP-UX for getprpw*() the manual page claims that one should include
5309 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5310 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5311 * and pp_sys.c already includes <shadow.h> if there is such.
5313 * Note that <sys/security.h> is already probed for, but currently
5314 * it is only included in special cases.
5316 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5317 * be preferred interface, even though also the getprpw*() interface
5318 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5319 * One also needs to call set_auth_parameters() in main() before
5320 * doing anything else, whether one is using getespw*() or getprpw*().
5322 * Note that accessing the shadow databases can be magnitudes
5323 * slower than accessing the standard databases.
5328 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5329 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5330 * the pw_comment is left uninitialized. */
5331 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5337 char* name = POPpbytex;
5338 pwent = getpwnam(name);
5344 pwent = getpwuid(uid);
5348 # ifdef HAS_GETPWENT
5350 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5351 if (pwent) pwent = getpwnam(pwent->pw_name);
5354 DIE(aTHX_ PL_no_func, "getpwent");
5360 if (GIMME != G_ARRAY) {
5361 PUSHs(sv = sv_newmortal());
5363 if (which == OP_GPWNAM)
5364 # if Uid_t_sign <= 0
5365 sv_setiv(sv, (IV)pwent->pw_uid);
5367 sv_setuv(sv, (UV)pwent->pw_uid);
5370 sv_setpv(sv, pwent->pw_name);
5376 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5377 sv_setpv(sv, pwent->pw_name);
5379 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5381 /* If we have getspnam(), we try to dig up the shadow
5382 * password. If we are underprivileged, the shadow
5383 * interface will set the errno to EACCES or similar,
5384 * and return a null pointer. If this happens, we will
5385 * use the dummy password (usually "*" or "x") from the
5386 * standard password database.
5388 * In theory we could skip the shadow call completely
5389 * if euid != 0 but in practice we cannot know which
5390 * security measures are guarding the shadow databases
5391 * on a random platform.
5393 * Resist the urge to use additional shadow interfaces.
5394 * Divert the urge to writing an extension instead.
5397 /* Some AIX setups falsely(?) detect some getspnam(), which
5398 * has a different API than the Solaris/IRIX one. */
5399 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5401 struct spwd *spwent;
5402 int saverrno; /* Save and restore errno so that
5403 * underprivileged attempts seem
5404 * to have never made the unsccessful
5405 * attempt to retrieve the shadow password. */
5408 spwent = getspnam(pwent->pw_name);
5410 if (spwent && spwent->sp_pwdp)
5411 sv_setpv(sv, spwent->sp_pwdp);
5415 if (!SvPOK(sv)) /* Use the standard password, then. */
5416 sv_setpv(sv, pwent->pw_passwd);
5419 # ifndef INCOMPLETE_TAINTS
5420 /* passwd is tainted because user himself can diddle with it.
5421 * admittedly not much and in a very limited way, but nevertheless. */
5425 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5426 # if Uid_t_sign <= 0
5427 sv_setiv(sv, (IV)pwent->pw_uid);
5429 sv_setuv(sv, (UV)pwent->pw_uid);
5432 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5433 # if Uid_t_sign <= 0
5434 sv_setiv(sv, (IV)pwent->pw_gid);
5436 sv_setuv(sv, (UV)pwent->pw_gid);
5438 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5439 * because of the poor interface of the Perl getpw*(),
5440 * not because there's some standard/convention saying so.
5441 * A better interface would have been to return a hash,
5442 * but we are accursed by our history, alas. --jhi. */
5443 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5445 sv_setiv(sv, (IV)pwent->pw_change);
5448 sv_setiv(sv, (IV)pwent->pw_quota);
5451 sv_setpv(sv, pwent->pw_age);
5456 /* pw_class and pw_comment are mutually exclusive--.
5457 * see the above note for pw_change, pw_quota, and pw_age. */
5458 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5460 sv_setpv(sv, pwent->pw_class);
5463 sv_setpv(sv, pwent->pw_comment);
5467 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5469 sv_setpv(sv, pwent->pw_gecos);
5471 # ifndef INCOMPLETE_TAINTS
5472 /* pw_gecos is tainted because user himself can diddle with it. */
5476 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5477 sv_setpv(sv, pwent->pw_dir);
5479 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5480 sv_setpv(sv, pwent->pw_shell);
5481 # ifndef INCOMPLETE_TAINTS
5482 /* pw_shell is tainted because user himself can diddle with it. */
5487 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5488 sv_setiv(sv, (IV)pwent->pw_expire);
5493 DIE(aTHX_ PL_no_func, "getpwent");
5499 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5504 DIE(aTHX_ PL_no_func, "setpwent");
5510 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5515 DIE(aTHX_ PL_no_func, "endpwent");
5524 DIE(aTHX_ PL_no_func, "getgrnam");
5533 DIE(aTHX_ PL_no_func, "getgrgid");
5541 I32 which = PL_op->op_type;
5542 register char **elem;
5544 struct group *grent;
5547 if (which == OP_GGRNAM) {
5548 char* name = POPpbytex;
5549 grent = (struct group *)getgrnam(name);
5551 else if (which == OP_GGRGID) {
5553 grent = (struct group *)getgrgid(gid);
5557 grent = (struct group *)getgrent();
5559 DIE(aTHX_ PL_no_func, "getgrent");
5563 if (GIMME != G_ARRAY) {
5564 PUSHs(sv = sv_newmortal());
5566 if (which == OP_GGRNAM)
5567 sv_setiv(sv, (IV)grent->gr_gid);
5569 sv_setpv(sv, grent->gr_name);
5575 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5576 sv_setpv(sv, grent->gr_name);
5578 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5580 sv_setpv(sv, grent->gr_passwd);
5583 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5584 sv_setiv(sv, (IV)grent->gr_gid);
5586 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5587 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5588 /* In UNICOS/mk (_CRAYMPP) the multithreading
5589 * versions (getgrnam_r, getgrgid_r)
5590 * seem to return an illegal pointer
5591 * as the group members list, gr_mem.
5592 * getgrent() doesn't even have a _r version
5593 * but the gr_mem is poisonous anyway.
5594 * So yes, you cannot get the list of group
5595 * members if building multithreaded in UNICOS/mk. */
5596 for (elem = grent->gr_mem; elem && *elem; elem++) {
5597 sv_catpv(sv, *elem);
5599 sv_catpvn(sv, " ", 1);
5606 DIE(aTHX_ PL_no_func, "getgrent");
5612 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5617 DIE(aTHX_ PL_no_func, "setgrent");
5623 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5628 DIE(aTHX_ PL_no_func, "endgrent");
5638 if (!(tmps = PerlProc_getlogin()))
5640 PUSHp(tmps, strlen(tmps));
5643 DIE(aTHX_ PL_no_func, "getlogin");
5647 /* Miscellaneous. */
5652 dSP; dMARK; dORIGMARK; dTARGET;
5653 register I32 items = SP - MARK;
5654 unsigned long a[20];
5660 while (++MARK <= SP) {
5661 if (SvTAINTED(*MARK)) {
5667 TAINT_PROPER("syscall");
5670 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5671 * or where sizeof(long) != sizeof(char*). But such machines will
5672 * not likely have syscall implemented either, so who cares?
5674 while (++MARK <= SP) {
5675 if (SvNIOK(*MARK) || !i)
5676 a[i++] = SvIV(*MARK);
5677 else if (*MARK == &PL_sv_undef)
5680 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5686 DIE(aTHX_ "Too many args to syscall");
5688 DIE(aTHX_ "Too few args to syscall");
5690 retval = syscall(a[0]);
5693 retval = syscall(a[0],a[1]);
5696 retval = syscall(a[0],a[1],a[2]);
5699 retval = syscall(a[0],a[1],a[2],a[3]);
5702 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5705 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5708 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5711 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5715 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5718 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5721 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5725 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5729 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5733 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5734 a[10],a[11],a[12],a[13]);
5736 #endif /* atarist */
5742 DIE(aTHX_ PL_no_func, "syscall");
5746 #ifdef FCNTL_EMULATE_FLOCK
5748 /* XXX Emulate flock() with fcntl().
5749 What's really needed is a good file locking module.
5753 fcntl_emulate_flock(int fd, int operation)
5757 switch (operation & ~LOCK_NB) {
5759 flock.l_type = F_RDLCK;
5762 flock.l_type = F_WRLCK;
5765 flock.l_type = F_UNLCK;
5771 flock.l_whence = SEEK_SET;
5772 flock.l_start = flock.l_len = (Off_t)0;
5774 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5777 #endif /* FCNTL_EMULATE_FLOCK */
5779 #ifdef LOCKF_EMULATE_FLOCK
5781 /* XXX Emulate flock() with lockf(). This is just to increase
5782 portability of scripts. The calls are not completely
5783 interchangeable. What's really needed is a good file
5787 /* The lockf() constants might have been defined in <unistd.h>.
5788 Unfortunately, <unistd.h> causes troubles on some mixed
5789 (BSD/POSIX) systems, such as SunOS 4.1.3.
5791 Further, the lockf() constants aren't POSIX, so they might not be
5792 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5793 just stick in the SVID values and be done with it. Sigh.
5797 # define F_ULOCK 0 /* Unlock a previously locked region */
5800 # define F_LOCK 1 /* Lock a region for exclusive use */
5803 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5806 # define F_TEST 3 /* Test a region for other processes locks */
5810 lockf_emulate_flock(int fd, int operation)
5816 /* flock locks entire file so for lockf we need to do the same */
5818 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5819 if (pos > 0) /* is seekable and needs to be repositioned */
5820 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5821 pos = -1; /* seek failed, so don't seek back afterwards */
5824 switch (operation) {
5826 /* LOCK_SH - get a shared lock */
5828 /* LOCK_EX - get an exclusive lock */
5830 i = lockf (fd, F_LOCK, 0);
5833 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5834 case LOCK_SH|LOCK_NB:
5835 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5836 case LOCK_EX|LOCK_NB:
5837 i = lockf (fd, F_TLOCK, 0);
5839 if ((errno == EAGAIN) || (errno == EACCES))
5840 errno = EWOULDBLOCK;
5843 /* LOCK_UN - unlock (non-blocking is a no-op) */
5845 case LOCK_UN|LOCK_NB:
5846 i = lockf (fd, F_ULOCK, 0);
5849 /* Default - can't decipher operation */
5856 if (pos > 0) /* need to restore position of the handle */
5857 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5862 #endif /* LOCKF_EMULATE_FLOCK */
5866 * c-indentation-style: bsd
5868 * indent-tabs-mode: t
5871 * vim: shiftwidth=4: