3 * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
4 * 2004, 2005, 2006, 2007 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 (pTHX);
99 struct group *getgrnam (char *);
100 struct group *getgrgid (Gid_t);
104 struct group *getgrent (void);
110 # if defined(_MSC_VER) || defined(__MINGW32__)
111 # include <sys/utime.h>
118 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
121 # define my_chsize PerlLIO_chsize
124 # define my_chsize PerlLIO_chsize
126 I32 my_chsize(int fd, Off_t length);
132 #else /* no flock() */
134 /* fcntl.h might not have been included, even if it exists, because
135 the current Configure only sets I_FCNTL if it's needed to pick up
136 the *_OK constants. Make sure it has been included before testing
137 the fcntl() locking constants. */
138 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
142 # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK)
143 # define FLOCK fcntl_emulate_flock
144 # define FCNTL_EMULATE_FLOCK
145 # else /* no flock() or fcntl(F_SETLK,...) */
147 # define FLOCK lockf_emulate_flock
148 # define LOCKF_EMULATE_FLOCK
150 # endif /* no flock() or fcntl(F_SETLK,...) */
153 static int FLOCK (int, int);
156 * These are the flock() constants. Since this sytems doesn't have
157 * flock(), the values of the constants are probably not available.
171 # endif /* emulating flock() */
173 #endif /* no flock() */
176 static const char zero_but_true[ZBTLEN + 1] = "0 but true";
178 #if defined(I_SYS_ACCESS) && !defined(R_OK)
179 # include <sys/access.h>
182 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
183 # define FD_CLOEXEC 1 /* NeXT needs this */
189 /* Missing protos on LynxOS */
190 void sethostent(int);
191 void endhostent(void);
193 void endnetent(void);
194 void setprotoent(int);
195 void endprotoent(void);
196 void setservent(int);
197 void endservent(void);
200 #undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */
202 /* AIX 5.2 and below use mktime for localtime, and defines the edge case
203 * for time 0x7fffffff to be valid only in UTC. AIX 5.3 provides localtime64
204 * available in the 32bit environment, which could warrant Configure
205 * checks in the future.
208 #define LOCALTIME_EDGECASE_BROKEN
211 /* F_OK unused: if stat() cannot find it... */
213 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
214 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
215 # define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK))
218 #if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS)
219 # ifdef I_SYS_SECURITY
220 # include <sys/security.h>
224 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF))
227 # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f)))
231 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF)
233 # define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF))
237 #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \
238 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
239 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
242 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
244 const Uid_t ruid = getuid();
245 const Uid_t euid = geteuid();
246 const Gid_t rgid = getgid();
247 const Gid_t egid = getegid();
251 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
252 Perl_croak(aTHX_ "switching effective uid is not implemented");
255 if (setreuid(euid, ruid))
258 if (setresuid(euid, ruid, (Uid_t)-1))
261 Perl_croak(aTHX_ "entering effective uid failed");
264 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
265 Perl_croak(aTHX_ "switching effective gid is not implemented");
268 if (setregid(egid, rgid))
271 if (setresgid(egid, rgid, (Gid_t)-1))
274 Perl_croak(aTHX_ "entering effective gid failed");
277 res = access(path, mode);
280 if (setreuid(ruid, euid))
283 if (setresuid(ruid, euid, (Uid_t)-1))
286 Perl_croak(aTHX_ "leaving effective uid failed");
289 if (setregid(rgid, egid))
292 if (setresgid(rgid, egid, (Gid_t)-1))
295 Perl_croak(aTHX_ "leaving effective gid failed");
300 # define PERL_EFF_ACCESS(p,f) (S_emulate_eaccess(aTHX_ (p), (f)))
307 const char * const tmps = POPpconstx;
308 const I32 gimme = GIMME_V;
309 const char *mode = "r";
312 if (PL_op->op_private & OPpOPEN_IN_RAW)
314 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
316 fp = PerlProc_popen(tmps, mode);
318 const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL);
320 PerlIO_apply_layers(aTHX_ fp,mode,type);
322 if (gimme == G_VOID) {
324 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
327 else if (gimme == G_SCALAR) {
330 PL_rs = &PL_sv_undef;
331 sv_setpvn(TARG, "", 0); /* note that this preserves previous buffer */
332 while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL)
340 SV * const sv = newSV(79);
341 if (sv_gets(sv, fp, 0) == NULL) {
345 XPUSHs(sv_2mortal(sv));
346 if (SvLEN(sv) - SvCUR(sv) > 20) {
347 SvPV_shrink_to_cur(sv);
352 STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp));
353 TAINT; /* "I believe that this is not gratuitous!" */
356 STATUS_NATIVE_CHILD_SET(-1);
357 if (gimme == G_SCALAR)
368 tryAMAGICunTARGET(iter, -1);
370 /* Note that we only ever get here if File::Glob fails to load
371 * without at the same time croaking, for some reason, or if
372 * perl was built with PERL_EXTERNAL_GLOB */
379 * The external globbing program may use things we can't control,
380 * so for security reasons we must assume the worst.
383 taint_proper(PL_no_security, "glob");
387 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
388 PL_last_in_gv = (GV*)*PL_stack_sp--;
390 SAVESPTR(PL_rs); /* This is not permanent, either. */
391 PL_rs = sv_2mortal(newSVpvs("\000"));
394 *SvPVX(PL_rs) = '\n';
398 result = do_readline();
406 PL_last_in_gv = cGVOP_gv;
407 return do_readline();
418 do_join(TARG, &PL_sv_no, MARK, SP);
422 else if (SP == MARK) {
430 tmps = SvPV_const(tmpsv, len);
431 if ((!tmps || !len) && PL_errgv) {
432 SV * const error = ERRSV;
433 SvUPGRADE(error, SVt_PV);
434 if (SvPOK(error) && SvCUR(error))
435 sv_catpvs(error, "\t...caught");
437 tmps = SvPV_const(tmpsv, len);
440 tmpsv = sv_2mortal(newSVpvs("Warning: something's wrong"));
442 Perl_warn(aTHX_ "%"SVf, SVfARG(tmpsv));
454 VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH);
456 if (SP - MARK != 1) {
458 do_join(TARG, &PL_sv_no, MARK, SP);
460 tmps = SvPV_const(tmpsv, len);
466 tmps = SvROK(tmpsv) ? (const char *)NULL : SvPV_const(tmpsv, len);
469 SV * const error = ERRSV;
470 SvUPGRADE(error, SVt_PV);
471 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
473 SvSetSV(error,tmpsv);
474 else if (sv_isobject(error)) {
475 HV * const stash = SvSTASH(SvRV(error));
476 GV * const gv = gv_fetchmethod(stash, "PROPAGATE");
478 SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
479 SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
486 call_sv((SV*)GvCV(gv),
487 G_SCALAR|G_EVAL|G_KEEPERR);
488 sv_setsv(error,*PL_stack_sp--);
494 if (SvPOK(error) && SvCUR(error))
495 sv_catpvs(error, "\t...propagated");
498 tmps = SvPV_const(tmpsv, len);
504 tmpsv = sv_2mortal(newSVpvs("Died"));
506 DIE(aTHX_ "%"SVf, SVfARG(tmpsv));
522 GV * const gv = (GV *)*++MARK;
525 DIE(aTHX_ PL_no_usym, "filehandle");
527 if ((io = GvIOp(gv))) {
529 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
531 if (IoDIRP(io) && ckWARN2(WARN_IO, WARN_DEPRECATED))
532 Perl_warner(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
533 "Opening dirhandle %s also as a file", GvENAME(gv));
535 mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
537 /* Method's args are same as ours ... */
538 /* ... except handle is replaced by the object */
539 *MARK-- = SvTIED_obj((SV*)io, mg);
543 call_method("OPEN", G_SCALAR);
557 tmps = SvPV_const(sv, len);
558 ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK));
561 PUSHi( (I32)PL_forkprocess );
562 else if (PL_forkprocess == 0) /* we are a new child */
572 GV * const gv = (MAXARG == 0) ? PL_defoutgv : (GV*)POPs;
575 IO * const io = GvIO(gv);
577 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
580 XPUSHs(SvTIED_obj((SV*)io, mg));
583 call_method("CLOSE", G_SCALAR);
591 PUSHs(boolSV(do_close(gv, TRUE)));
604 GV * const wgv = (GV*)POPs;
605 GV * const rgv = (GV*)POPs;
610 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
611 DIE(aTHX_ PL_no_usym, "filehandle");
616 do_close(rgv, FALSE);
618 do_close(wgv, FALSE);
620 if (PerlProc_pipe(fd) < 0)
623 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE);
624 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE);
625 IoOFP(rstio) = IoIFP(rstio);
626 IoIFP(wstio) = IoOFP(wstio);
627 IoTYPE(rstio) = IoTYPE_RDONLY;
628 IoTYPE(wstio) = IoTYPE_WRONLY;
630 if (!IoIFP(rstio) || !IoOFP(wstio)) {
632 PerlIO_close(IoIFP(rstio));
634 PerlLIO_close(fd[0]);
636 PerlIO_close(IoOFP(wstio));
638 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));
701 anum = PerlLIO_umask(022);
702 /* setting it to 022 between the two calls to umask avoids
703 * to have a window where the umask is set to 0 -- meaning
704 * that another thread could create world-writeable files. */
706 (void)PerlLIO_umask(anum);
709 anum = PerlLIO_umask(POPi);
710 TAINT_PROPER("umask");
713 /* Only DIE if trying to restrict permissions on "user" (self).
714 * Otherwise it's harmless and more useful to just return undef
715 * since 'group' and 'other' concepts probably don't exist here. */
716 if (MAXARG >= 1 && (POPi & 0700))
717 DIE(aTHX_ "umask not implemented");
718 XPUSHs(&PL_sv_undef);
739 if (gv && (io = GvIO(gv))) {
740 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
743 XPUSHs(SvTIED_obj((SV*)io, mg));
748 call_method("BINMODE", G_SCALAR);
756 if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) {
757 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
758 report_evil_fh(gv, io, PL_op->op_type);
759 SETERRNO(EBADF,RMS_IFI);
765 const int mode = mode_from_discipline(discp);
766 const char *const d = (discp ? SvPV_nolen_const(discp) : NULL);
767 if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) {
768 if (IoOFP(io) && IoOFP(io) != IoIFP(io)) {
769 if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) {
790 const I32 markoff = MARK - PL_stack_base;
791 const char *methname;
792 int how = PERL_MAGIC_tied;
796 switch(SvTYPE(varsv)) {
798 methname = "TIEHASH";
799 HvEITER_set((HV *)varsv, 0);
802 methname = "TIEARRAY";
805 #ifdef GV_UNIQUE_CHECK
806 if (GvUNIQUE((GV*)varsv)) {
807 Perl_croak(aTHX_ "Attempt to tie unique GV");
810 methname = "TIEHANDLE";
811 how = PERL_MAGIC_tiedscalar;
812 /* For tied filehandles, we apply tiedscalar magic to the IO
813 slot of the GP rather than the GV itself. AMS 20010812 */
815 GvIOp(varsv) = newIO();
816 varsv = (SV *)GvIOp(varsv);
819 methname = "TIESCALAR";
820 how = PERL_MAGIC_tiedscalar;
824 if (sv_isobject(*MARK)) {
826 PUSHSTACKi(PERLSI_MAGIC);
828 EXTEND(SP,(I32)items);
832 call_method(methname, G_SCALAR);
835 /* Not clear why we don't call call_method here too.
836 * perhaps to get different error message ?
838 stash = gv_stashsv(*MARK, 0);
839 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
840 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"",
841 methname, SVfARG(*MARK));
844 PUSHSTACKi(PERLSI_MAGIC);
846 EXTEND(SP,(I32)items);
850 call_sv((SV*)GvCV(gv), G_SCALAR);
856 if (sv_isobject(sv)) {
857 sv_unmagic(varsv, how);
858 /* Croak if a self-tie on an aggregate is attempted. */
859 if (varsv == SvRV(sv) &&
860 (SvTYPE(varsv) == SVt_PVAV ||
861 SvTYPE(varsv) == SVt_PVHV))
863 "Self-ties of arrays and hashes are not supported");
864 sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0);
867 SP = PL_stack_base + markoff;
877 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
878 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
880 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
883 if ((mg = SvTIED_mg(sv, how))) {
884 SV * const obj = SvRV(SvTIED_obj(sv, mg));
886 GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE);
888 if (gv && isGV(gv) && (cv = GvCV(gv))) {
890 XPUSHs(SvTIED_obj((SV*)gv, mg));
891 XPUSHs(sv_2mortal(newSViv(SvREFCNT(obj)-1)));
894 call_sv((SV *)cv, G_VOID);
898 else if (mg && SvREFCNT(obj) > 1 && ckWARN(WARN_UNTIE)) {
899 Perl_warner(aTHX_ packWARN(WARN_UNTIE),
900 "untie attempted while %"UVuf" inner references still exist",
901 (UV)SvREFCNT(obj) - 1 ) ;
905 sv_unmagic(sv, how) ;
915 const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV)
916 ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar;
918 if (SvTYPE(sv) == SVt_PVGV && !(sv = (SV *)GvIOp(sv)))
921 if ((mg = SvTIED_mg(sv, how))) {
922 SV *osv = SvTIED_obj(sv, mg);
923 if (osv == mg->mg_obj)
924 osv = sv_mortalcopy(osv);
938 HV * const hv = (HV*)POPs;
939 SV * const sv = sv_2mortal(newSVpvs("AnyDBM_File"));
940 stash = gv_stashsv(sv, 0);
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, NULL, 0);
995 struct timeval timebuf;
996 struct timeval *tbuf = &timebuf;
999 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1004 # if BYTEORDER & 0xf0000
1005 # define ORDERBYTE (0x88888888 - BYTEORDER)
1007 # define ORDERBYTE (0x4444 - BYTEORDER)
1013 for (i = 1; i <= 3; i++) {
1014 SV * const sv = SP[i];
1017 if (SvREADONLY(sv)) {
1019 sv_force_normal_flags(sv, 0);
1020 if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0))
1021 DIE(aTHX_ PL_no_modify);
1024 if (ckWARN(WARN_MISC))
1025 Perl_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask");
1026 SvPV_force_nolen(sv); /* force string conversion */
1033 /* little endians can use vecs directly */
1034 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1041 masksize = NFDBITS / NBBY;
1043 masksize = sizeof(long); /* documented int, everyone seems to use long */
1045 Zero(&fd_sets[0], 4, char*);
1048 # if SELECT_MIN_BITS == 1
1049 growsize = sizeof(fd_set);
1051 # if defined(__GLIBC__) && defined(__FD_SETSIZE)
1052 # undef SELECT_MIN_BITS
1053 # define SELECT_MIN_BITS __FD_SETSIZE
1055 /* If SELECT_MIN_BITS is greater than one we most probably will want
1056 * to align the sizes with SELECT_MIN_BITS/8 because for example
1057 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
1058 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
1059 * on (sets/tests/clears bits) is 32 bits. */
1060 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
1068 timebuf.tv_sec = (long)value;
1069 value -= (NV)timebuf.tv_sec;
1070 timebuf.tv_usec = (long)(value * 1000000.0);
1075 for (i = 1; i <= 3; i++) {
1077 if (!SvOK(sv) || SvCUR(sv) == 0) {
1084 Sv_Grow(sv, growsize);
1088 while (++j <= growsize) {
1092 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1094 Newx(fd_sets[i], growsize, char);
1095 for (offset = 0; offset < growsize; offset += masksize) {
1096 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1097 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1100 fd_sets[i] = SvPVX(sv);
1104 #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST
1105 /* Can't make just the (void*) conditional because that would be
1106 * cpp #if within cpp macro, and not all compilers like that. */
1107 nfound = PerlSock_select(
1109 (Select_fd_set_t) fd_sets[1],
1110 (Select_fd_set_t) fd_sets[2],
1111 (Select_fd_set_t) fd_sets[3],
1112 (void*) tbuf); /* Workaround for compiler bug. */
1114 nfound = PerlSock_select(
1116 (Select_fd_set_t) fd_sets[1],
1117 (Select_fd_set_t) fd_sets[2],
1118 (Select_fd_set_t) fd_sets[3],
1121 for (i = 1; i <= 3; i++) {
1124 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1126 for (offset = 0; offset < growsize; offset += masksize) {
1127 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1128 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1130 Safefree(fd_sets[i]);
1137 if (GIMME == G_ARRAY && tbuf) {
1138 value = (NV)(timebuf.tv_sec) +
1139 (NV)(timebuf.tv_usec) / 1000000.0;
1140 PUSHs(sv_2mortal(newSVnv(value)));
1144 DIE(aTHX_ "select not implemented");
1149 Perl_setdefout(pTHX_ GV *gv)
1152 SvREFCNT_inc_simple_void(gv);
1154 SvREFCNT_dec(PL_defoutgv);
1162 GV * const newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : NULL;
1163 GV * egv = GvEGV(PL_defoutgv);
1169 XPUSHs(&PL_sv_undef);
1171 GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1172 if (gvp && *gvp == egv) {
1173 gv_efullname4(TARG, PL_defoutgv, NULL, TRUE);
1177 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1182 if (!GvIO(newdefout))
1183 gv_IOadd(newdefout);
1184 setdefout(newdefout);
1194 GV * const gv = (MAXARG==0) ? PL_stdingv : (GV*)POPs;
1196 if (gv && (io = GvIO(gv))) {
1197 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1199 const I32 gimme = GIMME_V;
1201 XPUSHs(SvTIED_obj((SV*)io, mg));
1204 call_method("GETC", gimme);
1207 if (gimme == G_SCALAR)
1208 SvSetMagicSV_nosteal(TARG, TOPs);
1212 if (!gv || do_eof(gv)) { /* make sure we have fp with something */
1213 if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY))
1214 && ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1215 report_evil_fh(gv, io, PL_op->op_type);
1216 SETERRNO(EBADF,RMS_IFI);
1220 sv_setpvn(TARG, " ", 1);
1221 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1222 if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) {
1223 /* Find out how many bytes the char needs */
1224 Size_t len = UTF8SKIP(SvPVX_const(TARG));
1227 len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1);
1228 SvCUR_set(TARG,1+len);
1237 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1240 register PERL_CONTEXT *cx;
1241 const I32 gimme = GIMME_V;
1246 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1248 cx->blk_sub.retop = retop;
1250 PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1);
1252 setdefout(gv); /* locally select filehandle so $% et al work */
1284 goto not_a_format_reference;
1289 tmpsv = sv_newmortal();
1290 gv_efullname4(tmpsv, fgv, NULL, FALSE);
1291 name = SvPV_nolen_const(tmpsv);
1293 DIE(aTHX_ "Undefined format \"%s\" called", name);
1295 not_a_format_reference:
1296 DIE(aTHX_ "Not a format reference");
1299 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1301 IoFLAGS(io) &= ~IOf_DIDTOP;
1302 return doform(cv,gv,PL_op->op_next);
1308 GV * const gv = cxstack[cxstack_ix].blk_sub.gv;
1309 register IO * const io = GvIOp(gv);
1314 register PERL_CONTEXT *cx;
1316 if (!io || !(ofp = IoOFP(io)))
1319 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1320 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1322 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1323 PL_formtarget != PL_toptarget)
1327 if (!IoTOP_GV(io)) {
1330 if (!IoTOP_NAME(io)) {
1332 if (!IoFMT_NAME(io))
1333 IoFMT_NAME(io) = savepv(GvNAME(gv));
1334 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv)));
1335 topgv = gv_fetchsv(topname, 0, SVt_PVFM);
1336 if ((topgv && GvFORM(topgv)) ||
1337 !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM))
1338 IoTOP_NAME(io) = savesvpv(topname);
1340 IoTOP_NAME(io) = savepvs("top");
1342 topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM);
1343 if (!topgv || !GvFORM(topgv)) {
1344 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1347 IoTOP_GV(io) = topgv;
1349 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1350 I32 lines = IoLINES_LEFT(io);
1351 const char *s = SvPVX_const(PL_formtarget);
1352 if (lines <= 0) /* Yow, header didn't even fit!!! */
1354 while (lines-- > 0) {
1355 s = strchr(s, '\n');
1361 const STRLEN save = SvCUR(PL_formtarget);
1362 SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget));
1363 do_print(PL_formtarget, ofp);
1364 SvCUR_set(PL_formtarget, save);
1365 sv_chop(PL_formtarget, s);
1366 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1369 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1370 do_print(PL_formfeed, ofp);
1371 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1373 PL_formtarget = PL_toptarget;
1374 IoFLAGS(io) |= IOf_DIDTOP;
1377 DIE(aTHX_ "bad top format reference");
1380 SV * const sv = sv_newmortal();
1382 gv_efullname4(sv, fgv, NULL, FALSE);
1383 name = SvPV_nolen_const(sv);
1385 DIE(aTHX_ "Undefined top format \"%s\" called", name);
1387 DIE(aTHX_ "Undefined top format called");
1389 if (cv && CvCLONE(cv))
1390 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1391 return doform(cv, gv, PL_op);
1395 POPBLOCK(cx,PL_curpm);
1401 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1403 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1404 else if (ckWARN(WARN_CLOSED))
1405 report_evil_fh(gv, io, PL_op->op_type);
1410 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1411 if (ckWARN(WARN_IO))
1412 Perl_warner(aTHX_ packWARN(WARN_IO), "page overflow");
1414 if (!do_print(PL_formtarget, fp))
1417 FmLINES(PL_formtarget) = 0;
1418 SvCUR_set(PL_formtarget, 0);
1419 *SvEND(PL_formtarget) = '\0';
1420 if (IoFLAGS(io) & IOf_FLUSH)
1421 (void)PerlIO_flush(fp);
1426 PL_formtarget = PL_bodytarget;
1428 PERL_UNUSED_VAR(newsp);
1429 PERL_UNUSED_VAR(gimme);
1430 return cx->blk_sub.retop;
1435 dVAR; dSP; dMARK; dORIGMARK;
1440 GV * const gv = (PL_op->op_flags & OPf_STACKED) ? (GV*)*++MARK : PL_defoutgv;
1442 if (gv && (io = GvIO(gv))) {
1443 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1445 if (MARK == ORIGMARK) {
1448 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1452 *MARK = SvTIED_obj((SV*)io, mg);
1455 call_method("PRINTF", G_SCALAR);
1458 MARK = ORIGMARK + 1;
1466 if (!(io = GvIO(gv))) {
1467 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1468 report_evil_fh(gv, io, PL_op->op_type);
1469 SETERRNO(EBADF,RMS_IFI);
1472 else if (!(fp = IoOFP(io))) {
1473 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1475 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1476 else if (ckWARN(WARN_CLOSED))
1477 report_evil_fh(gv, io, PL_op->op_type);
1479 SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI);
1483 if (SvTAINTED(MARK[1]))
1484 TAINT_PROPER("printf");
1485 do_sprintf(sv, SP - MARK, MARK + 1);
1486 if (!do_print(sv, fp))
1489 if (IoFLAGS(io) & IOf_FLUSH)
1490 if (PerlIO_flush(fp) == EOF)
1501 PUSHs(&PL_sv_undef);
1509 const int perm = (MAXARG > 3) ? POPi : 0666;
1510 const int mode = POPi;
1511 SV * const sv = POPs;
1512 GV * const gv = (GV *)POPs;
1515 /* Need TIEHANDLE method ? */
1516 const char * const tmps = SvPV_const(sv, len);
1517 /* FIXME? do_open should do const */
1518 if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) {
1519 IoLINES(GvIOp(gv)) = 0;
1523 PUSHs(&PL_sv_undef);
1530 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1536 Sock_size_t bufsize;
1544 bool charstart = FALSE;
1545 STRLEN charskip = 0;
1548 GV * const gv = (GV*)*++MARK;
1549 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD)
1550 && gv && (io = GvIO(gv)) )
1552 const MAGIC * mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1556 *MARK = SvTIED_obj((SV*)io, mg);
1558 call_method("READ", G_SCALAR);
1572 sv_setpvn(bufsv, "", 0);
1573 length = SvIVx(*++MARK);
1576 offset = SvIVx(*++MARK);
1580 if (!io || !IoIFP(io)) {
1581 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
1582 report_evil_fh(gv, io, PL_op->op_type);
1583 SETERRNO(EBADF,RMS_IFI);
1586 if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) {
1587 buffer = SvPVutf8_force(bufsv, blen);
1588 /* UTF-8 may not have been set if they are all low bytes */
1593 buffer = SvPV_force(bufsv, blen);
1594 buffer_utf8 = !IN_BYTES && SvUTF8(bufsv);
1597 DIE(aTHX_ "Negative length");
1605 if (PL_op->op_type == OP_RECV) {
1606 char namebuf[MAXPATHLEN];
1607 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__)
1608 bufsize = sizeof (struct sockaddr_in);
1610 bufsize = sizeof namebuf;
1612 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1616 buffer = SvGROW(bufsv, (STRLEN)(length+1));
1617 /* 'offset' means 'flags' here */
1618 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1619 (struct sockaddr *)namebuf, &bufsize);
1623 /* Bogus return without padding */
1624 bufsize = sizeof (struct sockaddr_in);
1626 SvCUR_set(bufsv, count);
1627 *SvEND(bufsv) = '\0';
1628 (void)SvPOK_only(bufsv);
1632 /* This should not be marked tainted if the fp is marked clean */
1633 if (!(IoFLAGS(io) & IOf_UNTAINT))
1634 SvTAINTED_on(bufsv);
1636 sv_setpvn(TARG, namebuf, bufsize);
1641 if (PL_op->op_type == OP_RECV)
1642 DIE(aTHX_ PL_no_sock_func, "recv");
1644 if (DO_UTF8(bufsv)) {
1645 /* offset adjust in characters not bytes */
1646 blen = sv_len_utf8(bufsv);
1649 if (-offset > (int)blen)
1650 DIE(aTHX_ "Offset outside string");
1653 if (DO_UTF8(bufsv)) {
1654 /* convert offset-as-chars to offset-as-bytes */
1655 if (offset >= (int)blen)
1656 offset += SvCUR(bufsv) - blen;
1658 offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer;
1661 bufsize = SvCUR(bufsv);
1662 /* Allocating length + offset + 1 isn't perfect in the case of reading
1663 bytes from a byte file handle into a UTF8 buffer, but it won't harm us
1665 (should be 2 * length + offset + 1, or possibly something longer if
1666 PL_encoding is true) */
1667 buffer = SvGROW(bufsv, (STRLEN)(length+offset+1));
1668 if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */
1669 Zero(buffer+bufsize, offset-bufsize, char);
1671 buffer = buffer + offset;
1673 read_target = bufsv;
1675 /* Best to read the bytes into a new SV, upgrade that to UTF8, then
1676 concatenate it to the current buffer. */
1678 /* Truncate the existing buffer to the start of where we will be
1680 SvCUR_set(bufsv, offset);
1682 read_target = sv_newmortal();
1683 SvUPGRADE(read_target, SVt_PV);
1684 buffer = SvGROW(read_target, (STRLEN)(length + 1));
1687 if (PL_op->op_type == OP_SYSREAD) {
1688 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1689 if (IoTYPE(io) == IoTYPE_SOCKET) {
1690 count = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1696 count = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1701 #ifdef HAS_SOCKET__bad_code_maybe
1702 if (IoTYPE(io) == IoTYPE_SOCKET) {
1703 char namebuf[MAXPATHLEN];
1704 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1705 bufsize = sizeof (struct sockaddr_in);
1707 bufsize = sizeof namebuf;
1709 count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0,
1710 (struct sockaddr *)namebuf, &bufsize);
1715 count = PerlIO_read(IoIFP(io), buffer, length);
1716 /* PerlIO_read() - like fread() returns 0 on both error and EOF */
1717 if (count == 0 && PerlIO_error(IoIFP(io)))
1721 if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO))
1722 report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY);
1725 SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target)));
1726 *SvEND(read_target) = '\0';
1727 (void)SvPOK_only(read_target);
1728 if (fp_utf8 && !IN_BYTES) {
1729 /* Look at utf8 we got back and count the characters */
1730 const char *bend = buffer + count;
1731 while (buffer < bend) {
1733 skip = UTF8SKIP(buffer);
1736 if (buffer - charskip + skip > bend) {
1737 /* partial character - try for rest of it */
1738 length = skip - (bend-buffer);
1739 offset = bend - SvPVX_const(bufsv);
1751 /* If we have not 'got' the number of _characters_ we 'wanted' get some more
1752 provided amount read (count) was what was requested (length)
1754 if (got < wanted && count == length) {
1755 length = wanted - got;
1756 offset = bend - SvPVX_const(bufsv);
1759 /* return value is character count */
1763 else if (buffer_utf8) {
1764 /* Let svcatsv upgrade the bytes we read in to utf8.
1765 The buffer is a mortal so will be freed soon. */
1766 sv_catsv_nomg(bufsv, read_target);
1769 /* This should not be marked tainted if the fp is marked clean */
1770 if (!(IoFLAGS(io) & IOf_UNTAINT))
1771 SvTAINTED_on(bufsv);
1783 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
1789 STRLEN orig_blen_bytes;
1790 const int op_type = PL_op->op_type;
1794 GV *const gv = (GV*)*++MARK;
1795 if (PL_op->op_type == OP_SYSWRITE
1796 && gv && (io = GvIO(gv))) {
1797 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
1801 if (MARK == SP - 1) {
1803 sv = sv_2mortal(newSViv(sv_len(*SP)));
1809 *(ORIGMARK+1) = SvTIED_obj((SV*)io, mg);
1811 call_method("WRITE", G_SCALAR);
1827 if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) {
1829 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
1830 if (io && IoIFP(io))
1831 report_evil_fh(gv, io, OP_phoney_INPUT_ONLY);
1833 report_evil_fh(gv, io, PL_op->op_type);
1835 SETERRNO(EBADF,RMS_IFI);
1839 /* Do this first to trigger any overloading. */
1840 buffer = SvPV_const(bufsv, blen);
1841 orig_blen_bytes = blen;
1842 doing_utf8 = DO_UTF8(bufsv);
1844 if (PerlIO_isutf8(IoIFP(io))) {
1845 if (!SvUTF8(bufsv)) {
1846 /* We don't modify the original scalar. */
1847 tmpbuf = bytes_to_utf8((const U8*) buffer, &blen);
1848 buffer = (char *) tmpbuf;
1852 else if (doing_utf8) {
1853 STRLEN tmplen = blen;
1854 U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8);
1857 buffer = (char *) tmpbuf;
1861 assert((char *)result == buffer);
1862 Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op));
1866 if (op_type == OP_SYSWRITE) {
1867 Size_t length = 0; /* This length is in characters. */
1873 /* The SV is bytes, and we've had to upgrade it. */
1874 blen_chars = orig_blen_bytes;
1876 /* The SV really is UTF-8. */
1877 if (SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1878 /* Don't call sv_len_utf8 again because it will call magic
1879 or overloading a second time, and we might get back a
1880 different result. */
1881 blen_chars = utf8_length((U8*)buffer, (U8*)buffer + blen);
1883 /* It's safe, and it may well be cached. */
1884 blen_chars = sv_len_utf8(bufsv);
1892 length = blen_chars;
1894 #if Size_t_size > IVSIZE
1895 length = (Size_t)SvNVx(*++MARK);
1897 length = (Size_t)SvIVx(*++MARK);
1899 if ((SSize_t)length < 0) {
1901 DIE(aTHX_ "Negative length");
1906 offset = SvIVx(*++MARK);
1908 if (-offset > (IV)blen_chars) {
1910 DIE(aTHX_ "Offset outside string");
1912 offset += blen_chars;
1913 } else if (offset >= (IV)blen_chars && blen_chars > 0) {
1915 DIE(aTHX_ "Offset outside string");
1919 if (length > blen_chars - offset)
1920 length = blen_chars - offset;
1922 /* Here we convert length from characters to bytes. */
1923 if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) {
1924 /* Either we had to convert the SV, or the SV is magical, or
1925 the SV has overloading, in which case we can't or mustn't
1926 or mustn't call it again. */
1928 buffer = (const char*)utf8_hop((const U8 *)buffer, offset);
1929 length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer;
1931 /* It's a real UTF-8 SV, and it's not going to change under
1932 us. Take advantage of any cache. */
1934 I32 len_I32 = length;
1936 /* Convert the start and end character positions to bytes.
1937 Remember that the second argument to sv_pos_u2b is relative
1939 sv_pos_u2b(bufsv, &start, &len_I32);
1946 buffer = buffer+offset;
1948 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1949 if (IoTYPE(io) == IoTYPE_SOCKET) {
1950 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1956 /* See the note at doio.c:do_print about filesize limits. --jhi */
1957 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1963 const int flags = SvIVx(*++MARK);
1966 char * const sockbuf = SvPVx(*++MARK, mlen);
1967 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1968 flags, (struct sockaddr *)sockbuf, mlen);
1972 = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags);
1977 DIE(aTHX_ PL_no_sock_func, "send");
1984 retval = utf8_length((U8*)buffer, (U8*)buffer + retval);
1987 #if Size_t_size > IVSIZE
2006 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
2008 gv = PL_last_in_gv = GvEGV(PL_argvgv);
2010 if (io && !IoIFP(io)) {
2011 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
2013 IoFLAGS(io) &= ~IOf_START;
2014 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL);
2016 sv_setpvn(GvSV(gv), "-", 1);
2019 GvSV(gv) = newSVpvn("-", 1);
2021 SvSETMAGIC(GvSV(gv));
2023 else if (!nextargv(gv))
2028 gv = PL_last_in_gv; /* eof */
2031 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
2034 IO * const io = GvIO(gv);
2036 if (io && (mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar))) {
2038 XPUSHs(SvTIED_obj((SV*)io, mg));
2041 call_method("EOF", G_SCALAR);
2048 PUSHs(boolSV(!gv || do_eof(gv)));
2059 PL_last_in_gv = (GV*)POPs;
2062 if (gv && (io = GvIO(gv))) {
2063 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
2066 XPUSHs(SvTIED_obj((SV*)io, mg));
2069 call_method("TELL", G_SCALAR);
2076 #if LSEEKSIZE > IVSIZE
2077 PUSHn( do_tell(gv) );
2079 PUSHi( do_tell(gv) );
2087 const int whence = POPi;
2088 #if LSEEKSIZE > IVSIZE
2089 const Off_t offset = (Off_t)SvNVx(POPs);
2091 const Off_t offset = (Off_t)SvIVx(POPs);
2094 GV * const gv = PL_last_in_gv = (GV*)POPs;
2097 if (gv && (io = GvIO(gv))) {
2098 MAGIC * const mg = SvTIED_mg((SV*)io, PERL_MAGIC_tiedscalar);
2101 XPUSHs(SvTIED_obj((SV*)io, mg));
2102 #if LSEEKSIZE > IVSIZE
2103 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
2105 XPUSHs(sv_2mortal(newSViv(offset)));
2107 XPUSHs(sv_2mortal(newSViv(whence)));
2110 call_method("SEEK", G_SCALAR);
2117 if (PL_op->op_type == OP_SEEK)
2118 PUSHs(boolSV(do_seek(gv, offset, whence)));
2120 const Off_t sought = do_sysseek(gv, offset, whence);
2122 PUSHs(&PL_sv_undef);
2124 SV* const sv = sought ?
2125 #if LSEEKSIZE > IVSIZE
2130 : newSVpvn(zero_but_true, ZBTLEN);
2131 PUSHs(sv_2mortal(sv));
2141 /* There seems to be no consensus on the length type of truncate()
2142 * and ftruncate(), both off_t and size_t have supporters. In
2143 * general one would think that when using large files, off_t is
2144 * at least as wide as size_t, so using an off_t should be okay. */
2145 /* XXX Configure probe for the length type of *truncate() needed XXX */
2148 #if Off_t_size > IVSIZE
2153 /* Checking for length < 0 is problematic as the type might or
2154 * might not be signed: if it is not, clever compilers will moan. */
2155 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
2162 if (PL_op->op_flags & OPf_SPECIAL) {
2163 tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO);
2172 TAINT_PROPER("truncate");
2173 if (!(fp = IoIFP(io))) {
2179 if (ftruncate(PerlIO_fileno(fp), len) < 0)
2181 if (my_chsize(PerlIO_fileno(fp), len) < 0)
2188 SV * const sv = POPs;
2191 if (SvTYPE(sv) == SVt_PVGV) {
2192 tmpgv = (GV*)sv; /* *main::FRED for example */
2193 goto do_ftruncate_gv;
2195 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2196 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
2197 goto do_ftruncate_gv;
2199 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2200 io = (IO*) SvRV(sv); /* *main::FRED{IO} for example */
2201 goto do_ftruncate_io;
2204 name = SvPV_nolen_const(sv);
2205 TAINT_PROPER("truncate");
2207 if (truncate(name, len) < 0)
2211 const int tmpfd = PerlLIO_open(name, O_RDWR);
2216 if (my_chsize(tmpfd, len) < 0)
2218 PerlLIO_close(tmpfd);
2227 SETERRNO(EBADF,RMS_IFI);
2235 SV * const argsv = POPs;
2236 const unsigned int func = POPu;
2237 const int optype = PL_op->op_type;
2238 GV * const gv = (GV*)POPs;
2239 IO * const io = gv ? GvIOn(gv) : NULL;
2243 if (!io || !argsv || !IoIFP(io)) {
2244 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2245 report_evil_fh(gv, io, PL_op->op_type);
2246 SETERRNO(EBADF,RMS_IFI); /* well, sort of... */
2250 if (SvPOK(argsv) || !SvNIOK(argsv)) {
2253 s = SvPV_force(argsv, len);
2254 need = IOCPARM_LEN(func);
2256 s = Sv_Grow(argsv, need + 1);
2257 SvCUR_set(argsv, need);
2260 s[SvCUR(argsv)] = 17; /* a little sanity check here */
2263 retval = SvIV(argsv);
2264 s = INT2PTR(char*,retval); /* ouch */
2267 TAINT_PROPER(PL_op_desc[optype]);
2269 if (optype == OP_IOCTL)
2271 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
2273 DIE(aTHX_ "ioctl is not implemented");
2277 DIE(aTHX_ "fcntl is not implemented");
2279 #if defined(OS2) && defined(__EMX__)
2280 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
2282 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
2286 #if defined(HAS_IOCTL) || defined(HAS_FCNTL)
2288 if (s[SvCUR(argsv)] != 17)
2289 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
2291 s[SvCUR(argsv)] = 0; /* put our null back */
2292 SvSETMAGIC(argsv); /* Assume it has changed */
2301 PUSHp(zero_but_true, ZBTLEN);
2314 const int argtype = POPi;
2315 GV * const gv = (MAXARG == 0) ? PL_last_in_gv : (GV*)POPs;
2317 if (gv && (io = GvIO(gv)))
2323 /* XXX Looks to me like io is always NULL at this point */
2325 (void)PerlIO_flush(fp);
2326 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2329 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2330 report_evil_fh(gv, io, PL_op->op_type);
2332 SETERRNO(EBADF,RMS_IFI);
2337 DIE(aTHX_ PL_no_func, "flock()");
2347 const int protocol = POPi;
2348 const int type = POPi;
2349 const int domain = POPi;
2350 GV * const gv = (GV*)POPs;
2351 register IO * const io = gv ? GvIOn(gv) : NULL;
2355 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2356 report_evil_fh(gv, io, PL_op->op_type);
2357 if (io && IoIFP(io))
2358 do_close(gv, FALSE);
2359 SETERRNO(EBADF,LIB_INVARG);
2364 do_close(gv, FALSE);
2366 TAINT_PROPER("socket");
2367 fd = PerlSock_socket(domain, type, protocol);
2370 IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */
2371 IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2372 IoTYPE(io) = IoTYPE_SOCKET;
2373 if (!IoIFP(io) || !IoOFP(io)) {
2374 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2375 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2376 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2379 #if defined(HAS_FCNTL) && defined(F_SETFD)
2380 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2384 setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */
2389 DIE(aTHX_ PL_no_sock_func, "socket");
2395 #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET))
2397 const int protocol = POPi;
2398 const int type = POPi;
2399 const int domain = POPi;
2400 GV * const gv2 = (GV*)POPs;
2401 GV * const gv1 = (GV*)POPs;
2402 register IO * const io1 = gv1 ? GvIOn(gv1) : NULL;
2403 register IO * const io2 = gv2 ? GvIOn(gv2) : NULL;
2406 if (!gv1 || !gv2 || !io1 || !io2) {
2407 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
2409 report_evil_fh(gv1, io1, PL_op->op_type);
2411 report_evil_fh(gv1, io2, PL_op->op_type);
2413 if (io1 && IoIFP(io1))
2414 do_close(gv1, FALSE);
2415 if (io2 && IoIFP(io2))
2416 do_close(gv2, FALSE);
2421 do_close(gv1, FALSE);
2423 do_close(gv2, FALSE);
2425 TAINT_PROPER("socketpair");
2426 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2428 IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE);
2429 IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE);
2430 IoTYPE(io1) = IoTYPE_SOCKET;
2431 IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE);
2432 IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE);
2433 IoTYPE(io2) = IoTYPE_SOCKET;
2434 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2435 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2436 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2437 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2438 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2439 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2440 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2443 #if defined(HAS_FCNTL) && defined(F_SETFD)
2444 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2445 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2450 DIE(aTHX_ PL_no_sock_func, "socketpair");
2458 SV * const addrsv = POPs;
2459 /* OK, so on what platform does bind modify addr? */
2461 GV * const gv = (GV*)POPs;
2462 register IO * const io = GvIOn(gv);
2465 if (!io || !IoIFP(io))
2468 addr = SvPV_const(addrsv, len);
2469 TAINT_PROPER("bind");
2470 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2476 if (ckWARN(WARN_CLOSED))
2477 report_evil_fh(gv, io, PL_op->op_type);
2478 SETERRNO(EBADF,SS_IVCHAN);
2481 DIE(aTHX_ PL_no_sock_func, "bind");
2489 SV * const addrsv = POPs;
2490 GV * const gv = (GV*)POPs;
2491 register IO * const io = GvIOn(gv);
2495 if (!io || !IoIFP(io))
2498 addr = SvPV_const(addrsv, len);
2499 TAINT_PROPER("connect");
2500 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2506 if (ckWARN(WARN_CLOSED))
2507 report_evil_fh(gv, io, PL_op->op_type);
2508 SETERRNO(EBADF,SS_IVCHAN);
2511 DIE(aTHX_ PL_no_sock_func, "connect");
2519 const int backlog = POPi;
2520 GV * const gv = (GV*)POPs;
2521 register IO * const io = gv ? GvIOn(gv) : NULL;
2523 if (!gv || !io || !IoIFP(io))
2526 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2532 if (ckWARN(WARN_CLOSED))
2533 report_evil_fh(gv, io, PL_op->op_type);
2534 SETERRNO(EBADF,SS_IVCHAN);
2537 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;
2553 GV * const ggv = (GV*)POPs;
2554 GV * const ngv = (GV*)POPs;
2563 if (!gstio || !IoIFP(gstio))
2567 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len);
2570 /* Some platforms indicate zero length when an AF_UNIX client is
2571 * not bound. Simulate a non-zero-length sockaddr structure in
2573 namebuf[0] = 0; /* sun_len */
2574 namebuf[1] = AF_UNIX; /* sun_family */
2582 do_close(ngv, FALSE);
2583 IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE);
2584 IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE);
2585 IoTYPE(nstio) = IoTYPE_SOCKET;
2586 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2587 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2588 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2589 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2592 #if defined(HAS_FCNTL) && defined(F_SETFD)
2593 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2597 len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */
2598 setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */
2600 #ifdef __SCO_VERSION__
2601 len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */
2604 PUSHp(namebuf, len);
2608 if (ckWARN(WARN_CLOSED))
2609 report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type);
2610 SETERRNO(EBADF,SS_IVCHAN);
2616 DIE(aTHX_ PL_no_sock_func, "accept");
2624 const int how = POPi;
2625 GV * const gv = (GV*)POPs;
2626 register IO * const io = GvIOn(gv);
2628 if (!io || !IoIFP(io))
2631 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2635 if (ckWARN(WARN_CLOSED))
2636 report_evil_fh(gv, io, PL_op->op_type);
2637 SETERRNO(EBADF,SS_IVCHAN);
2640 DIE(aTHX_ PL_no_sock_func, "shutdown");
2648 const int optype = PL_op->op_type;
2649 SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs;
2650 const unsigned int optname = (unsigned int) POPi;
2651 const unsigned int lvl = (unsigned int) POPi;
2652 GV * const gv = (GV*)POPs;
2653 register IO * const io = GvIOn(gv);
2657 if (!io || !IoIFP(io))
2660 fd = PerlIO_fileno(IoIFP(io));
2664 (void)SvPOK_only(sv);
2668 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2675 #if defined(__SYMBIAN32__)
2676 # define SETSOCKOPT_OPTION_VALUE_T void *
2678 # define SETSOCKOPT_OPTION_VALUE_T const char *
2680 /* XXX TODO: We need to have a proper type (a Configure probe,
2681 * etc.) for what the C headers think of the third argument of
2682 * setsockopt(), the option_value read-only buffer: is it
2683 * a "char *", or a "void *", const or not. Some compilers
2684 * don't take kindly to e.g. assuming that "char *" implicitly
2685 * promotes to a "void *", or to explicitly promoting/demoting
2686 * consts to non/vice versa. The "const void *" is the SUS
2687 * definition, but that does not fly everywhere for the above
2689 SETSOCKOPT_OPTION_VALUE_T buf;
2693 buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l);
2697 aint = (int)SvIV(sv);
2698 buf = (SETSOCKOPT_OPTION_VALUE_T) &aint;
2701 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2710 if (ckWARN(WARN_CLOSED))
2711 report_evil_fh(gv, io, optype);
2712 SETERRNO(EBADF,SS_IVCHAN);
2717 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2725 const int optype = PL_op->op_type;
2726 GV * const gv = (GV*)POPs;
2727 register IO * const io = GvIOn(gv);
2732 if (!io || !IoIFP(io))
2735 sv = sv_2mortal(newSV(257));
2736 (void)SvPOK_only(sv);
2740 fd = PerlIO_fileno(IoIFP(io));
2742 case OP_GETSOCKNAME:
2743 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2746 case OP_GETPEERNAME:
2747 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2749 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2751 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";
2752 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2753 if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET &&
2754 !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere,
2755 sizeof(u_short) + sizeof(struct in_addr))) {
2762 #ifdef BOGUS_GETNAME_RETURN
2763 /* Interactive Unix, getpeername() and getsockname()
2764 does not return valid namelen */
2765 if (len == BOGUS_GETNAME_RETURN)
2766 len = sizeof(struct sockaddr);
2774 if (ckWARN(WARN_CLOSED))
2775 report_evil_fh(gv, io, optype);
2776 SETERRNO(EBADF,SS_IVCHAN);
2781 DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]);
2796 if (PL_op->op_flags & OPf_REF) {
2798 if (PL_op->op_type == OP_LSTAT) {
2799 if (gv != PL_defgv) {
2800 do_fstat_warning_check:
2801 if (ckWARN(WARN_IO))
2802 Perl_warner(aTHX_ packWARN(WARN_IO),
2803 "lstat() on filehandle %s", gv ? GvENAME(gv) : "");
2804 } else if (PL_laststype != OP_LSTAT)
2805 Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat");
2809 if (gv != PL_defgv) {
2810 PL_laststype = OP_STAT;
2812 sv_setpvn(PL_statname, "", 0);
2819 PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
2820 } else if (IoDIRP(io)) {
2822 PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache);
2824 PL_laststatval = -1;
2830 if (PL_laststatval < 0) {
2831 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
2832 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
2837 SV* const sv = POPs;
2838 if (SvTYPE(sv) == SVt_PVGV) {
2841 } else if(SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2843 if (PL_op->op_type == OP_LSTAT)
2844 goto do_fstat_warning_check;
2846 } else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) {
2848 if (PL_op->op_type == OP_LSTAT)
2849 goto do_fstat_warning_check;
2850 goto do_fstat_have_io;
2853 sv_setpv(PL_statname, SvPV_nolen_const(sv));
2855 PL_laststype = PL_op->op_type;
2856 if (PL_op->op_type == OP_LSTAT)
2857 PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache);
2859 PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache);
2860 if (PL_laststatval < 0) {
2861 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n'))
2862 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat");
2868 if (gimme != G_ARRAY) {
2869 if (gimme != G_VOID)
2870 XPUSHs(boolSV(max));
2876 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2877 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2878 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2879 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2880 #if Uid_t_size > IVSIZE
2881 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2883 # if Uid_t_sign <= 0
2884 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2886 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2889 #if Gid_t_size > IVSIZE
2890 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2892 # if Gid_t_sign <= 0
2893 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2895 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2898 #ifdef USE_STAT_RDEV
2899 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2901 PUSHs(sv_2mortal(newSVpvs("")));
2903 #if Off_t_size > IVSIZE
2904 PUSHs(sv_2mortal(newSVnv((NV)PL_statcache.st_size)));
2906 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2909 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2910 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2911 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2913 PUSHs(sv_2mortal(newSViv((IV)PL_statcache.st_atime)));
2914 PUSHs(sv_2mortal(newSViv((IV)PL_statcache.st_mtime)));
2915 PUSHs(sv_2mortal(newSViv((IV)PL_statcache.st_ctime)));
2917 #ifdef USE_STAT_BLOCKS
2918 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2919 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2921 PUSHs(sv_2mortal(newSVpvs("")));
2922 PUSHs(sv_2mortal(newSVpvs("")));
2928 /* This macro is used by the stacked filetest operators :
2929 * if the previous filetest failed, short-circuit and pass its value.
2930 * Else, discard it from the stack and continue. --rgs
2932 #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \
2933 if (TOPs == &PL_sv_no || TOPs == &PL_sv_undef) { RETURN; } \
2934 else { (void)POPs; PUTBACK; } \
2941 /* Not const, because things tweak this below. Not bool, because there's
2942 no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */
2943 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
2944 I32 use_access = PL_op->op_private & OPpFT_ACCESS;
2945 /* Giving some sort of initial value silences compilers. */
2947 int access_mode = R_OK;
2949 int access_mode = 0;
2952 /* access_mode is never used, but leaving use_access in makes the
2953 conditional compiling below much clearer. */
2956 int stat_mode = S_IRUSR;
2958 bool effective = FALSE;
2961 STACKED_FTEST_CHECK;
2963 switch (PL_op->op_type) {
2965 #if !(defined(HAS_ACCESS) && defined(R_OK))
2971 #if defined(HAS_ACCESS) && defined(W_OK)
2976 stat_mode = S_IWUSR;
2980 #if defined(HAS_ACCESS) && defined(X_OK)
2985 stat_mode = S_IXUSR;
2989 #ifdef PERL_EFF_ACCESS
2992 stat_mode = S_IWUSR;
2996 #ifndef PERL_EFF_ACCESS
3004 #ifdef PERL_EFF_ACCESS
3009 stat_mode = S_IXUSR;
3015 #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS)
3016 const char *name = POPpx;
3018 # ifdef PERL_EFF_ACCESS
3019 result = PERL_EFF_ACCESS(name, access_mode);
3021 DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s",
3027 result = access(name, access_mode);
3029 DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op));
3044 if (cando(stat_mode, effective, &PL_statcache))
3053 const int op_type = PL_op->op_type;
3055 STACKED_FTEST_CHECK;
3060 if (op_type == OP_FTIS)
3063 /* You can't dTARGET inside OP_FTIS, because you'll get
3064 "panic: pad_sv po" - the op is not flagged to have a target. */
3068 #if Off_t_size > IVSIZE
3069 PUSHn(PL_statcache.st_size);
3071 PUSHi(PL_statcache.st_size);
3075 PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 );
3078 PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 );
3081 PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 );
3094 /* I believe that all these three are likely to be defined on most every
3095 system these days. */
3097 if(PL_op->op_type == OP_FTSUID)
3101 if(PL_op->op_type == OP_FTSGID)
3105 if(PL_op->op_type == OP_FTSVTX)
3109 STACKED_FTEST_CHECK;
3114 switch (PL_op->op_type) {
3116 if (PL_statcache.st_uid == PL_uid)
3120 if (PL_statcache.st_uid == PL_euid)
3124 if (PL_statcache.st_size == 0)
3128 if (S_ISSOCK(PL_statcache.st_mode))
3132 if (S_ISCHR(PL_statcache.st_mode))
3136 if (S_ISBLK(PL_statcache.st_mode))
3140 if (S_ISREG(PL_statcache.st_mode))
3144 if (S_ISDIR(PL_statcache.st_mode))
3148 if (S_ISFIFO(PL_statcache.st_mode))
3153 if (PL_statcache.st_mode & S_ISUID)
3159 if (PL_statcache.st_mode & S_ISGID)
3165 if (PL_statcache.st_mode & S_ISVTX)
3176 I32 result = my_lstat();
3180 if (S_ISLNK(PL_statcache.st_mode))
3193 STACKED_FTEST_CHECK;
3195 if (PL_op->op_flags & OPf_REF)
3197 else if (isGV(TOPs))
3199 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3200 gv = (GV*)SvRV(POPs);
3202 gv = gv_fetchsv(tmpsv = POPs, 0, SVt_PVIO);
3204 if (GvIO(gv) && IoIFP(GvIOp(gv)))
3205 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
3206 else if (tmpsv && SvOK(tmpsv)) {
3207 const char *tmps = SvPV_nolen_const(tmpsv);
3215 if (PerlLIO_isatty(fd))
3220 #if defined(atarist) /* this will work with atariST. Configure will
3221 make guesses for other systems. */
3222 # define FILE_base(f) ((f)->_base)
3223 # define FILE_ptr(f) ((f)->_ptr)
3224 # define FILE_cnt(f) ((f)->_cnt)
3225 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3236 register STDCHAR *s;
3242 STACKED_FTEST_CHECK;
3244 if (PL_op->op_flags & OPf_REF)
3246 else if (isGV(TOPs))
3248 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3249 gv = (GV*)SvRV(POPs);
3255 if (gv == PL_defgv) {
3257 io = GvIO(PL_statgv);
3260 goto really_filename;
3265 PL_laststatval = -1;
3266 sv_setpvn(PL_statname, "", 0);
3267 io = GvIO(PL_statgv);
3269 if (io && IoIFP(io)) {
3270 if (! PerlIO_has_base(IoIFP(io)))
3271 DIE(aTHX_ "-T and -B not implemented on filehandles");
3272 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3273 if (PL_laststatval < 0)
3275 if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */
3276 if (PL_op->op_type == OP_FTTEXT)
3281 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3282 i = PerlIO_getc(IoIFP(io));
3284 (void)PerlIO_ungetc(IoIFP(io),i);
3286 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3288 len = PerlIO_get_bufsiz(IoIFP(io));
3289 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3290 /* sfio can have large buffers - limit to 512 */
3295 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) {
3297 report_evil_fh(gv, GvIO(gv), PL_op->op_type);
3299 SETERRNO(EBADF,RMS_IFI);
3307 PL_laststype = OP_STAT;
3308 sv_setpv(PL_statname, SvPV_nolen_const(sv));
3309 if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) {
3310 if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname),
3312 Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open");
3315 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3316 if (PL_laststatval < 0) {
3317 (void)PerlIO_close(fp);
3320 PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL);
3321 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3322 (void)PerlIO_close(fp);
3324 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3325 RETPUSHNO; /* special case NFS directories */
3326 RETPUSHYES; /* null file is anything */
3331 /* now scan s to look for textiness */
3332 /* XXX ASCII dependent code */
3334 #if defined(DOSISH) || defined(USEMYBINMODE)
3335 /* ignore trailing ^Z on short files */
3336 if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26)
3340 for (i = 0; i < len; i++, s++) {
3341 if (!*s) { /* null never allowed in text */
3346 else if (!(isPRINT(*s) || isSPACE(*s)))
3349 else if (*s & 128) {
3351 if (IN_LOCALE_RUNTIME && isALPHA_LC(*s))
3354 /* utf8 characters don't count as odd */
3355 if (UTF8_IS_START(*s)) {
3356 int ulen = UTF8SKIP(s);
3357 if (ulen < len - i) {
3359 for (j = 1; j < ulen; j++) {
3360 if (!UTF8_IS_CONTINUATION(s[j]))
3363 --ulen; /* loop does extra increment */
3373 *s != '\n' && *s != '\r' && *s != '\b' &&
3374 *s != '\t' && *s != '\f' && *s != 27)
3379 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3390 const char *tmps = NULL;
3394 SV * const sv = POPs;
3395 if (PL_op->op_flags & OPf_SPECIAL) {
3396 gv = gv_fetchsv(sv, 0, SVt_PVIO);
3398 else if (SvTYPE(sv) == SVt_PVGV) {
3401 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
3405 tmps = SvPV_nolen_const(sv);
3409 if( !gv && (!tmps || !*tmps) ) {
3410 HV * const table = GvHVn(PL_envgv);
3413 if ( (svp = hv_fetchs(table, "HOME", FALSE))
3414 || (svp = hv_fetchs(table, "LOGDIR", FALSE))
3416 || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE))
3421 deprecate("chdir('') or chdir(undef) as chdir()");
3422 tmps = SvPV_nolen_const(*svp);
3426 TAINT_PROPER("chdir");
3431 TAINT_PROPER("chdir");
3434 IO* const io = GvIO(gv);
3437 PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0);
3438 } else if (IoIFP(io)) {
3439 PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0);
3442 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3443 report_evil_fh(gv, io, PL_op->op_type);
3444 SETERRNO(EBADF, RMS_IFI);
3449 if (ckWARN2(WARN_UNOPENED,WARN_CLOSED))
3450 report_evil_fh(gv, io, PL_op->op_type);
3451 SETERRNO(EBADF,RMS_IFI);
3455 DIE(aTHX_ PL_no_func, "fchdir");
3459 PUSHi( PerlDir_chdir(tmps) >= 0 );
3461 /* Clear the DEFAULT element of ENV so we'll get the new value
3463 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3470 dVAR; dSP; dMARK; dTARGET;
3471 const I32 value = (I32)apply(PL_op->op_type, MARK, SP);
3482 char * const tmps = POPpx;
3483 TAINT_PROPER("chroot");
3484 PUSHi( chroot(tmps) >= 0 );
3487 DIE(aTHX_ PL_no_func, "chroot");
3495 const char * const tmps2 = POPpconstx;
3496 const char * const tmps = SvPV_nolen_const(TOPs);
3497 TAINT_PROPER("rename");
3499 anum = PerlLIO_rename(tmps, tmps2);
3501 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3502 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3505 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3506 (void)UNLINK(tmps2);
3507 if (!(anum = link(tmps, tmps2)))
3508 anum = UNLINK(tmps);
3516 #if defined(HAS_LINK) || defined(HAS_SYMLINK)
3520 const int op_type = PL_op->op_type;
3524 if (op_type == OP_LINK)
3525 DIE(aTHX_ PL_no_func, "link");
3527 # ifndef HAS_SYMLINK
3528 if (op_type == OP_SYMLINK)
3529 DIE(aTHX_ PL_no_func, "symlink");
3533 const char * const tmps2 = POPpconstx;
3534 const char * const tmps = SvPV_nolen_const(TOPs);
3535 TAINT_PROPER(PL_op_desc[op_type]);
3537 # if defined(HAS_LINK)
3538 # if defined(HAS_SYMLINK)
3539 /* Both present - need to choose which. */
3540 (op_type == OP_LINK) ?
3541 PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2);
3543 /* Only have link, so calls to pp_symlink will have DIE()d above. */
3544 PerlLIO_link(tmps, tmps2);
3547 # if defined(HAS_SYMLINK)
3548 /* Only have symlink, so calls to pp_link will have DIE()d above. */
3549 symlink(tmps, tmps2);
3554 SETi( result >= 0 );
3561 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
3572 char buf[MAXPATHLEN];
3575 #ifndef INCOMPLETE_TAINTS
3579 len = readlink(tmps, buf, sizeof(buf) - 1);
3587 RETSETUNDEF; /* just pretend it's a normal file */
3591 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3593 S_dooneliner(pTHX_ const char *cmd, const char *filename)
3595 char * const save_filename = filename;
3600 Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10;
3602 Newx(cmdline, size, char);
3603 my_strlcpy(cmdline, cmd, size);
3604 my_strlcat(cmdline, " ", size);
3605 for (s = cmdline + strlen(cmdline); *filename; ) {
3609 if (s - cmdline < size)
3610 my_strlcpy(s, " 2>&1", size - (s - cmdline));
3611 myfp = PerlProc_popen(cmdline, "r");
3615 SV * const tmpsv = sv_newmortal();
3616 /* Need to save/restore 'PL_rs' ?? */
3617 s = sv_gets(tmpsv, myfp, 0);
3618 (void)PerlProc_pclose(myfp);
3622 #ifdef HAS_SYS_ERRLIST
3627 /* you don't see this */
3628 const char * const errmsg =
3629 #ifdef HAS_SYS_ERRLIST
3637 if (instr(s, errmsg)) {
3644 #define EACCES EPERM
3646 if (instr(s, "cannot make"))
3647 SETERRNO(EEXIST,RMS_FEX);
3648 else if (instr(s, "existing file"))
3649 SETERRNO(EEXIST,RMS_FEX);
3650 else if (instr(s, "ile exists"))
3651 SETERRNO(EEXIST,RMS_FEX);
3652 else if (instr(s, "non-exist"))
3653 SETERRNO(ENOENT,RMS_FNF);
3654 else if (instr(s, "does not exist"))
3655 SETERRNO(ENOENT,RMS_FNF);
3656 else if (instr(s, "not empty"))
3657 SETERRNO(EBUSY,SS_DEVOFFLINE);
3658 else if (instr(s, "cannot access"))
3659 SETERRNO(EACCES,RMS_PRV);
3661 SETERRNO(EPERM,RMS_PRV);
3664 else { /* some mkdirs return no failure indication */
3665 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3666 if (PL_op->op_type == OP_RMDIR)
3671 SETERRNO(EACCES,RMS_PRV); /* a guess */
3680 /* This macro removes trailing slashes from a directory name.
3681 * Different operating and file systems take differently to
3682 * trailing slashes. According to POSIX 1003.1 1996 Edition
3683 * any number of trailing slashes should be allowed.
3684 * Thusly we snip them away so that even non-conforming
3685 * systems are happy.
3686 * We should probably do this "filtering" for all
3687 * the functions that expect (potentially) directory names:
3688 * -d, chdir(), chmod(), chown(), chroot(), fcntl()?,
3689 * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */
3691 #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \
3692 if ((len) > 1 && (tmps)[(len)-1] == '/') { \
3695 } while ((len) > 1 && (tmps)[(len)-1] == '/'); \
3696 (tmps) = savepvn((tmps), (len)); \
3706 const int mode = (MAXARG > 1) ? POPi : 0777;
3708 TRIMSLASHES(tmps,len,copy);
3710 TAINT_PROPER("mkdir");
3712 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3716 SETi( dooneliner("mkdir", tmps) );
3717 oldumask = PerlLIO_umask(0);
3718 PerlLIO_umask(oldumask);
3719 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3734 TRIMSLASHES(tmps,len,copy);
3735 TAINT_PROPER("rmdir");
3737 SETi( PerlDir_rmdir(tmps) >= 0 );
3739 SETi( dooneliner("rmdir", tmps) );
3746 /* Directory calls. */
3750 #if defined(Direntry_t) && defined(HAS_READDIR)
3752 const char * const dirname = POPpconstx;
3753 GV * const gv = (GV*)POPs;
3754 register IO * const io = GvIOn(gv);
3759 if ((IoIFP(io) || IoOFP(io)) && ckWARN2(WARN_IO, WARN_DEPRECATED))
3760 Perl_warner(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED),
3761 "Opening filehandle %s also as a directory", GvENAME(gv));
3763 PerlDir_close(IoDIRP(io));
3764 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3770 SETERRNO(EBADF,RMS_DIR);
3773 DIE(aTHX_ PL_no_dir_func, "opendir");
3779 #if !defined(Direntry_t) || !defined(HAS_READDIR)
3780 DIE(aTHX_ PL_no_dir_func, "readdir");
3782 #if !defined(I_DIRENT) && !defined(VMS)
3783 Direntry_t *readdir (DIR *);
3789 const I32 gimme = GIMME;
3790 GV * const gv = (GV *)POPs;
3791 register const Direntry_t *dp;
3792 register IO * const io = GvIOn(gv);
3794 if (!io || !IoDIRP(io)) {
3795 if(ckWARN(WARN_IO)) {
3796 Perl_warner(aTHX_ packWARN(WARN_IO),
3797 "readdir() attempted on invalid dirhandle %s", GvENAME(gv));
3803 dp = (Direntry_t *)PerlDir_read(IoDIRP(io));
3807 sv = newSVpvn(dp->d_name, dp->d_namlen);
3809 sv = newSVpv(dp->d_name, 0);
3811 #ifndef INCOMPLETE_TAINTS
3812 if (!(IoFLAGS(io) & IOf_UNTAINT))
3815 XPUSHs(sv_2mortal(sv));
3816 } while (gimme == G_ARRAY);
3818 if (!dp && gimme != G_ARRAY)
3825 SETERRNO(EBADF,RMS_ISI);
3826 if (GIMME == G_ARRAY)
3835 #if defined(HAS_TELLDIR) || defined(telldir)
3837 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3838 /* XXX netbsd still seemed to.
3839 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3840 --JHI 1999-Feb-02 */
3841 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3842 long telldir (DIR *);
3844 GV * const gv = (GV*)POPs;
3845 register IO * const io = GvIOn(gv);
3847 if (!io || !IoDIRP(io)) {
3848 if(ckWARN(WARN_IO)) {
3849 Perl_warner(aTHX_ packWARN(WARN_IO),
3850 "telldir() attempted on invalid dirhandle %s", GvENAME(gv));
3855 PUSHi( PerlDir_tell(IoDIRP(io)) );
3859 SETERRNO(EBADF,RMS_ISI);
3862 DIE(aTHX_ PL_no_dir_func, "telldir");
3868 #if defined(HAS_SEEKDIR) || defined(seekdir)
3870 const long along = POPl;
3871 GV * const gv = (GV*)POPs;
3872 register IO * const io = GvIOn(gv);
3874 if (!io || !IoDIRP(io)) {
3875 if(ckWARN(WARN_IO)) {
3876 Perl_warner(aTHX_ packWARN(WARN_IO),
3877 "seekdir() attempted on invalid dirhandle %s", GvENAME(gv));
3881 (void)PerlDir_seek(IoDIRP(io), along);
3886 SETERRNO(EBADF,RMS_ISI);
3889 DIE(aTHX_ PL_no_dir_func, "seekdir");
3895 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3897 GV * const gv = (GV*)POPs;
3898 register IO * const io = GvIOn(gv);
3900 if (!io || !IoDIRP(io)) {
3901 if(ckWARN(WARN_IO)) {
3902 Perl_warner(aTHX_ packWARN(WARN_IO),
3903 "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv));
3907 (void)PerlDir_rewind(IoDIRP(io));
3911 SETERRNO(EBADF,RMS_ISI);
3914 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3920 #if defined(Direntry_t) && defined(HAS_READDIR)
3922 GV * const gv = (GV*)POPs;
3923 register IO * const io = GvIOn(gv);
3925 if (!io || !IoDIRP(io)) {
3926 if(ckWARN(WARN_IO)) {
3927 Perl_warner(aTHX_ packWARN(WARN_IO),
3928 "closedir() attempted on invalid dirhandle %s", GvENAME(gv));
3932 #ifdef VOID_CLOSEDIR
3933 PerlDir_close(IoDIRP(io));
3935 if (PerlDir_close(IoDIRP(io)) < 0) {
3936 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3945 SETERRNO(EBADF,RMS_IFI);
3948 DIE(aTHX_ PL_no_dir_func, "closedir");
3952 /* Process control. */
3961 PERL_FLUSHALL_FOR_CHILD;
3962 childpid = PerlProc_fork();
3966 GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV);
3968 SvREADONLY_off(GvSV(tmpgv));
3969 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3970 SvREADONLY_on(GvSV(tmpgv));
3972 #ifdef THREADS_HAVE_PIDS
3973 PL_ppid = (IV)getppid();
3975 #ifdef PERL_USES_PL_PIDSTATUS
3976 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3982 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3987 PERL_FLUSHALL_FOR_CHILD;
3988 childpid = PerlProc_fork();
3994 DIE(aTHX_ PL_no_func, "fork");
4001 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL) && !defined(__LIBCATAMOUNT__)
4006 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4007 childpid = wait4pid(-1, &argflags, 0);
4009 while ((childpid = wait4pid(-1, &argflags, 0)) == -1 &&
4014 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4015 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4016 STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1);
4018 STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1);
4023 DIE(aTHX_ PL_no_func, "wait");
4029 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL) && !defined(__LIBCATAMOUNT__)
4031 const int optype = POPi;
4032 const Pid_t pid = TOPi;
4036 if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG)
4037 result = wait4pid(pid, &argflags, optype);
4039 while ((result = wait4pid(pid, &argflags, optype)) == -1 &&
4044 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
4045 /* 0 and -1 are both error returns (the former applies to WNOHANG case) */
4046 STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1);
4048 STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1);
4053 DIE(aTHX_ PL_no_func, "waitpid");
4059 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4060 #if defined(__LIBCATAMOUNT__)
4061 PL_statusvalue = -1;
4070 while (++MARK <= SP) {
4071 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4076 TAINT_PROPER("system");
4078 PERL_FLUSHALL_FOR_CHILD;
4079 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO)
4085 if (PerlProc_pipe(pp) >= 0)
4087 while ((childpid = PerlProc_fork()) == -1) {
4088 if (errno != EAGAIN) {
4093 PerlLIO_close(pp[0]);
4094 PerlLIO_close(pp[1]);
4101 Sigsave_t ihand,qhand; /* place to save signals during system() */
4105 PerlLIO_close(pp[1]);
4107 rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand);
4108 rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand);
4111 result = wait4pid(childpid, &status, 0);
4112 } while (result == -1 && errno == EINTR);
4114 (void)rsignal_restore(SIGINT, &ihand);
4115 (void)rsignal_restore(SIGQUIT, &qhand);
4117 STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status);
4118 do_execfree(); /* free any memory child malloced on fork */
4125 while (n < sizeof(int)) {
4126 n1 = PerlLIO_read(pp[0],
4127 (void*)(((char*)&errkid)+n),
4133 PerlLIO_close(pp[0]);
4134 if (n) { /* Error */
4135 if (n != sizeof(int))
4136 DIE(aTHX_ "panic: kid popen errno read");
4137 errno = errkid; /* Propagate errno from kid */
4138 STATUS_NATIVE_CHILD_SET(-1);
4141 XPUSHi(STATUS_CURRENT);
4145 PerlLIO_close(pp[0]);
4146 #if defined(HAS_FCNTL) && defined(F_SETFD)
4147 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
4150 if (PL_op->op_flags & OPf_STACKED) {
4151 SV * const really = *++MARK;
4152 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
4154 else if (SP - MARK != 1)
4155 value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes);
4157 value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes);
4161 #else /* ! FORK or VMS or OS/2 */
4164 if (PL_op->op_flags & OPf_STACKED) {
4165 SV * const really = *++MARK;
4166 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4167 value = (I32)do_aspawn(really, MARK, SP);
4169 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
4172 else if (SP - MARK != 1) {
4173 # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__)
4174 value = (I32)do_aspawn(NULL, MARK, SP);
4176 value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP);
4180 value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4182 if (PL_statusvalue == -1) /* hint that value must be returned as is */
4184 STATUS_NATIVE_CHILD_SET(value);
4187 XPUSHi(result ? value : STATUS_CURRENT);
4188 #endif /* !FORK or VMS or OS/2 */
4195 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
4200 while (++MARK <= SP) {
4201 (void)SvPV_nolen_const(*MARK); /* stringify for taint check */
4206 TAINT_PROPER("exec");
4208 PERL_FLUSHALL_FOR_CHILD;
4209 if (PL_op->op_flags & OPf_STACKED) {
4210 SV * const really = *++MARK;
4211 value = (I32)do_aexec(really, MARK, SP);
4213 else if (SP - MARK != 1)
4215 value = (I32)vms_do_aexec(NULL, MARK, SP);
4219 (void ) do_aspawn(NULL, MARK, SP);
4223 value = (I32)do_aexec(NULL, MARK, SP);
4228 value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4231 (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP)));
4234 value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP)));
4248 # ifdef THREADS_HAVE_PIDS
4249 if (PL_ppid != 1 && getppid() == 1)
4250 /* maybe the parent process has died. Refresh ppid cache */
4254 XPUSHi( getppid() );
4258 DIE(aTHX_ PL_no_func, "getppid");
4267 const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs);
4270 pgrp = (I32)BSD_GETPGRP(pid);
4272 if (pid != 0 && pid != PerlProc_getpid())
4273 DIE(aTHX_ "POSIX getpgrp can't take an argument");
4279 DIE(aTHX_ PL_no_func, "getpgrp()");
4298 TAINT_PROPER("setpgrp");
4300 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
4302 if ((pgrp != 0 && pgrp != PerlProc_getpid())
4303 || (pid != 0 && pid != PerlProc_getpid()))
4305 DIE(aTHX_ "setpgrp can't take arguments");
4307 SETi( setpgrp() >= 0 );
4308 #endif /* USE_BSDPGRP */
4311 DIE(aTHX_ PL_no_func, "setpgrp()");
4317 #ifdef HAS_GETPRIORITY
4319 const int who = POPi;
4320 const int which = TOPi;
4321 SETi( getpriority(which, who) );
4324 DIE(aTHX_ PL_no_func, "getpriority()");
4330 #ifdef HAS_SETPRIORITY
4332 const int niceval = POPi;
4333 const int who = POPi;
4334 const int which = TOPi;
4335 TAINT_PROPER("setpriority");
4336 SETi( setpriority(which, who, niceval) >= 0 );
4339 DIE(aTHX_ PL_no_func, "setpriority()");
4349 XPUSHn( time(NULL) );
4351 XPUSHi( time(NULL) );
4363 (void)PerlProc_times(&PL_timesbuf);
4365 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4366 /* struct tms, though same data */
4370 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick)));
4371 if (GIMME == G_ARRAY) {
4372 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick)));
4373 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick)));
4374 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick)));
4380 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4382 if (GIMME == G_ARRAY) {
4383 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4384 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4385 PUSHs(sv_2mortal(newSVnv((NV)0.0)));
4389 DIE(aTHX_ "times not implemented");
4391 #endif /* HAS_TIMES */
4394 #ifdef LOCALTIME_EDGECASE_BROKEN
4395 static struct tm *S_my_localtime (pTHX_ Time_t *tp)
4400 /* No workarounds in the valid range */
4401 if (!tp || *tp < 0x7fff573f || *tp >= 0x80000000)
4402 return (localtime (tp));
4404 /* This edge case is to workaround the undefined behaviour, where the
4405 * TIMEZONE makes the time go beyond the defined range.
4406 * gmtime (0x7fffffff) => 2038-01-19 03:14:07
4407 * If there is a negative offset in TZ, like MET-1METDST, some broken
4408 * implementations of localtime () (like AIX 5.2) barf with bogus
4410 * 0x7fffffff gmtime 2038-01-19 03:14:07
4411 * 0x7fffffff localtime 1901-12-13 21:45:51
4412 * 0x7fffffff mylocaltime 2038-01-19 04:14:07
4413 * 0x3c19137f gmtime 2001-12-13 20:45:51
4414 * 0x3c19137f localtime 2001-12-13 21:45:51
4415 * 0x3c19137f mylocaltime 2001-12-13 21:45:51
4416 * Given that legal timezones are typically between GMT-12 and GMT+12
4417 * we turn back the clock 23 hours before calling the localtime
4418 * function, and add those to the return value. This will never cause
4419 * day wrapping problems, since the edge case is Tue Jan *19*
4421 T = *tp - 82800; /* 23 hour. allows up to GMT-23 */
4424 if (P->tm_hour >= 24) {
4426 P->tm_mday++; /* 18 -> 19 */
4427 P->tm_wday++; /* Mon -> Tue */
4428 P->tm_yday++; /* 18 -> 19 */
4431 } /* S_my_localtime */
4439 const struct tm *tmbuf;
4440 static const char * const dayname[] =
4441 {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4442 static const char * const monname[] =
4443 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4444 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4450 when = (Time_t)SvNVx(POPs);
4452 when = (Time_t)SvIVx(POPs);
4455 if (PL_op->op_type == OP_LOCALTIME)
4456 #ifdef LOCALTIME_EDGECASE_BROKEN
4457 tmbuf = S_my_localtime(aTHX_ &when);
4459 tmbuf = localtime(&when);
4462 tmbuf = gmtime(&when);
4464 if (GIMME != G_ARRAY) {
4470 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4471 dayname[tmbuf->tm_wday],
4472 monname[tmbuf->tm_mon],
4477 tmbuf->tm_year + 1900);
4478 PUSHs(sv_2mortal(tsv));
4483 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4484 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4485 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4486 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4487 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4488 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4489 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4490 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4491 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4502 anum = alarm((unsigned int)anum);
4509 DIE(aTHX_ PL_no_func, "alarm");
4520 (void)time(&lasttime);
4525 PerlProc_sleep((unsigned int)duration);
4528 XPUSHi(when - lasttime);
4532 /* Shared memory. */
4533 /* Merged with some message passing. */
4537 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4538 dVAR; dSP; dMARK; dTARGET;
4539 const int op_type = PL_op->op_type;
4544 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4547 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4550 value = (I32)(do_semop(MARK, SP) >= 0);
4553 value = (I32)(do_shmio(op_type, MARK, SP) >= 0);
4569 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4570 dVAR; dSP; dMARK; dTARGET;
4571 const int anum = do_ipcget(PL_op->op_type, MARK, SP);
4578 DIE(aTHX_ "System V IPC is not implemented on this machine");
4584 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4585 dVAR; dSP; dMARK; dTARGET;
4586 const int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4594 PUSHp(zero_but_true, ZBTLEN);
4602 /* I can't const this further without getting warnings about the types of
4603 various arrays passed in from structures. */
4605 S_space_join_names_mortal(pTHX_ char *const *array)
4609 if (array && *array) {
4610 target = sv_2mortal(newSVpvs(""));
4612 sv_catpv(target, *array);
4615 sv_catpvs(target, " ");
4618 target = sv_mortalcopy(&PL_sv_no);
4623 /* Get system info. */
4627 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4629 I32 which = PL_op->op_type;
4630 register char **elem;
4632 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4633 struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4634 struct hostent *gethostbyname(Netdb_name_t);
4635 struct hostent *gethostent(void);
4637 struct hostent *hent;
4641 if (which == OP_GHBYNAME) {
4642 #ifdef HAS_GETHOSTBYNAME
4643 const char* const name = POPpbytex;
4644 hent = PerlSock_gethostbyname(name);
4646 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4649 else if (which == OP_GHBYADDR) {
4650 #ifdef HAS_GETHOSTBYADDR
4651 const int addrtype = POPi;
4652 SV * const addrsv = POPs;
4654 const char *addr = (char *)SvPVbyte(addrsv, addrlen);
4656 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4658 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4662 #ifdef HAS_GETHOSTENT
4663 hent = PerlSock_gethostent();
4665 DIE(aTHX_ PL_no_sock_func, "gethostent");
4668 #ifdef HOST_NOT_FOUND
4670 #ifdef USE_REENTRANT_API
4671 # ifdef USE_GETHOSTENT_ERRNO
4672 h_errno = PL_reentrant_buffer->_gethostent_errno;
4675 STATUS_UNIX_SET(h_errno);
4679 if (GIMME != G_ARRAY) {
4680 PUSHs(sv = sv_newmortal());
4682 if (which == OP_GHBYNAME) {
4684 sv_setpvn(sv, hent->h_addr, hent->h_length);
4687 sv_setpv(sv, (char*)hent->h_name);
4693 PUSHs(sv_2mortal(newSVpv((char*)hent->h_name, 0)));
4694 PUSHs(space_join_names_mortal(hent->h_aliases));
4695 PUSHs(sv_2mortal(newSViv((IV)hent->h_addrtype)));
4696 len = hent->h_length;
4697 PUSHs(sv_2mortal(newSViv((IV)len)));
4699 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4700 XPUSHs(sv_2mortal(newSVpvn(*elem, len)));
4704 PUSHs(newSVpvn(hent->h_addr, len));
4706 PUSHs(sv_mortalcopy(&PL_sv_no));
4711 DIE(aTHX_ PL_no_sock_func, "gethostent");
4717 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4719 I32 which = PL_op->op_type;
4721 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4722 struct netent *getnetbyaddr(Netdb_net_t, int);
4723 struct netent *getnetbyname(Netdb_name_t);
4724 struct netent *getnetent(void);
4726 struct netent *nent;
4728 if (which == OP_GNBYNAME){
4729 #ifdef HAS_GETNETBYNAME
4730 const char * const name = POPpbytex;
4731 nent = PerlSock_getnetbyname(name);
4733 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4736 else if (which == OP_GNBYADDR) {
4737 #ifdef HAS_GETNETBYADDR
4738 const int addrtype = POPi;
4739 const Netdb_net_t addr = (Netdb_net_t) (U32)POPu;
4740 nent = PerlSock_getnetbyaddr(addr, addrtype);
4742 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4746 #ifdef HAS_GETNETENT
4747 nent = PerlSock_getnetent();
4749 DIE(aTHX_ PL_no_sock_func, "getnetent");
4752 #ifdef HOST_NOT_FOUND
4754 #ifdef USE_REENTRANT_API
4755 # ifdef USE_GETNETENT_ERRNO
4756 h_errno = PL_reentrant_buffer->_getnetent_errno;
4759 STATUS_UNIX_SET(h_errno);
4764 if (GIMME != G_ARRAY) {
4765 PUSHs(sv = sv_newmortal());
4767 if (which == OP_GNBYNAME)
4768 sv_setiv(sv, (IV)nent->n_net);
4770 sv_setpv(sv, nent->n_name);
4776 PUSHs(sv_2mortal(newSVpv(nent->n_name, 0)));
4777 PUSHs(space_join_names_mortal(nent->n_aliases));
4778 PUSHs(sv_2mortal(newSViv((IV)nent->n_addrtype)));
4779 PUSHs(sv_2mortal(newSViv((IV)nent->n_net)));
4784 DIE(aTHX_ PL_no_sock_func, "getnetent");
4790 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4792 I32 which = PL_op->op_type;
4794 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4795 struct protoent *getprotobyname(Netdb_name_t);
4796 struct protoent *getprotobynumber(int);
4797 struct protoent *getprotoent(void);
4799 struct protoent *pent;
4801 if (which == OP_GPBYNAME) {
4802 #ifdef HAS_GETPROTOBYNAME
4803 const char* const name = POPpbytex;
4804 pent = PerlSock_getprotobyname(name);
4806 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4809 else if (which == OP_GPBYNUMBER) {
4810 #ifdef HAS_GETPROTOBYNUMBER
4811 const int number = POPi;
4812 pent = PerlSock_getprotobynumber(number);
4814 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4818 #ifdef HAS_GETPROTOENT
4819 pent = PerlSock_getprotoent();
4821 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4825 if (GIMME != G_ARRAY) {
4826 PUSHs(sv = sv_newmortal());
4828 if (which == OP_GPBYNAME)
4829 sv_setiv(sv, (IV)pent->p_proto);
4831 sv_setpv(sv, pent->p_name);
4837 PUSHs(sv_2mortal(newSVpv(pent->p_name, 0)));
4838 PUSHs(space_join_names_mortal(pent->p_aliases));
4839 PUSHs(sv_2mortal(newSViv((IV)pent->p_proto)));
4844 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4850 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4852 I32 which = PL_op->op_type;
4854 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4855 struct servent *getservbyname(Netdb_name_t, Netdb_name_t);
4856 struct servent *getservbyport(int, Netdb_name_t);
4857 struct servent *getservent(void);
4859 struct servent *sent;
4861 if (which == OP_GSBYNAME) {
4862 #ifdef HAS_GETSERVBYNAME
4863 const char * const proto = POPpbytex;
4864 const char * const name = POPpbytex;
4865 sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto);
4867 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4870 else if (which == OP_GSBYPORT) {
4871 #ifdef HAS_GETSERVBYPORT
4872 const char * const proto = POPpbytex;
4873 unsigned short port = (unsigned short)POPu;
4875 port = PerlSock_htons(port);
4877 sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto);
4879 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4883 #ifdef HAS_GETSERVENT
4884 sent = PerlSock_getservent();
4886 DIE(aTHX_ PL_no_sock_func, "getservent");
4890 if (GIMME != G_ARRAY) {
4891 PUSHs(sv = sv_newmortal());
4893 if (which == OP_GSBYNAME) {
4895 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4897 sv_setiv(sv, (IV)(sent->s_port));
4901 sv_setpv(sv, sent->s_name);
4907 PUSHs(sv_2mortal(newSVpv(sent->s_name, 0)));
4908 PUSHs(space_join_names_mortal(sent->s_aliases));
4910 PUSHs(sv_2mortal(newSViv((IV)PerlSock_ntohs(sent->s_port))));
4912 PUSHs(sv_2mortal(newSViv((IV)(sent->s_port))));
4914 PUSHs(sv_2mortal(newSVpv(sent->s_proto, 0)));
4919 DIE(aTHX_ PL_no_sock_func, "getservent");
4925 #ifdef HAS_SETHOSTENT
4927 PerlSock_sethostent(TOPi);
4930 DIE(aTHX_ PL_no_sock_func, "sethostent");
4936 #ifdef HAS_SETNETENT
4938 PerlSock_setnetent(TOPi);
4941 DIE(aTHX_ PL_no_sock_func, "setnetent");
4947 #ifdef HAS_SETPROTOENT
4949 PerlSock_setprotoent(TOPi);
4952 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4958 #ifdef HAS_SETSERVENT
4960 PerlSock_setservent(TOPi);
4963 DIE(aTHX_ PL_no_sock_func, "setservent");
4969 #ifdef HAS_ENDHOSTENT
4971 PerlSock_endhostent();
4975 DIE(aTHX_ PL_no_sock_func, "endhostent");
4981 #ifdef HAS_ENDNETENT
4983 PerlSock_endnetent();
4987 DIE(aTHX_ PL_no_sock_func, "endnetent");
4993 #ifdef HAS_ENDPROTOENT
4995 PerlSock_endprotoent();
4999 DIE(aTHX_ PL_no_sock_func, "endprotoent");
5005 #ifdef HAS_ENDSERVENT
5007 PerlSock_endservent();
5011 DIE(aTHX_ PL_no_sock_func, "endservent");
5019 I32 which = PL_op->op_type;
5021 struct passwd *pwent = NULL;
5023 * We currently support only the SysV getsp* shadow password interface.
5024 * The interface is declared in <shadow.h> and often one needs to link
5025 * with -lsecurity or some such.
5026 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
5029 * AIX getpwnam() is clever enough to return the encrypted password
5030 * only if the caller (euid?) is root.
5032 * There are at least three other shadow password APIs. Many platforms
5033 * seem to contain more than one interface for accessing the shadow
5034 * password databases, possibly for compatibility reasons.
5035 * The getsp*() is by far he simplest one, the other two interfaces
5036 * are much more complicated, but also very similar to each other.
5041 * struct pr_passwd *getprpw*();
5042 * The password is in
5043 * char getprpw*(...).ufld.fd_encrypt[]
5044 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
5049 * struct es_passwd *getespw*();
5050 * The password is in
5051 * char *(getespw*(...).ufld.fd_encrypt)
5052 * Mention HAS_GETESPWNAM here so that Configure probes for it.
5055 * struct userpw *getuserpw();
5056 * The password is in
5057 * char *(getuserpw(...)).spw_upw_passwd
5058 * (but the de facto standard getpwnam() should work okay)
5060 * Mention I_PROT here so that Configure probes for it.
5062 * In HP-UX for getprpw*() the manual page claims that one should include
5063 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
5064 * if one includes <shadow.h> as that includes <hpsecurity.h>,
5065 * and pp_sys.c already includes <shadow.h> if there is such.
5067 * Note that <sys/security.h> is already probed for, but currently
5068 * it is only included in special cases.
5070 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
5071 * be preferred interface, even though also the getprpw*() interface
5072 * is available) one needs to link with -lsecurity -ldb -laud -lm.
5073 * One also needs to call set_auth_parameters() in main() before
5074 * doing anything else, whether one is using getespw*() or getprpw*().
5076 * Note that accessing the shadow databases can be magnitudes
5077 * slower than accessing the standard databases.
5082 # if defined(__CYGWIN__) && defined(USE_REENTRANT_API)
5083 /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r():
5084 * the pw_comment is left uninitialized. */
5085 PL_reentrant_buffer->_pwent_struct.pw_comment = NULL;
5091 const char* const name = POPpbytex;
5092 pwent = getpwnam(name);
5098 pwent = getpwuid(uid);
5102 # ifdef HAS_GETPWENT
5104 #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */
5105 if (pwent) pwent = getpwnam(pwent->pw_name);
5108 DIE(aTHX_ PL_no_func, "getpwent");
5114 if (GIMME != G_ARRAY) {
5115 PUSHs(sv = sv_newmortal());
5117 if (which == OP_GPWNAM)
5118 # if Uid_t_sign <= 0
5119 sv_setiv(sv, (IV)pwent->pw_uid);
5121 sv_setuv(sv, (UV)pwent->pw_uid);
5124 sv_setpv(sv, pwent->pw_name);
5130 PUSHs(sv_2mortal(newSVpv(pwent->pw_name, 0)));
5132 PUSHs(sv = sv_2mortal(newSViv(0)));
5133 /* If we have getspnam(), we try to dig up the shadow
5134 * password. If we are underprivileged, the shadow
5135 * interface will set the errno to EACCES or similar,
5136 * and return a null pointer. If this happens, we will
5137 * use the dummy password (usually "*" or "x") from the
5138 * standard password database.
5140 * In theory we could skip the shadow call completely
5141 * if euid != 0 but in practice we cannot know which
5142 * security measures are guarding the shadow databases
5143 * on a random platform.
5145 * Resist the urge to use additional shadow interfaces.
5146 * Divert the urge to writing an extension instead.
5149 /* Some AIX setups falsely(?) detect some getspnam(), which
5150 * has a different API than the Solaris/IRIX one. */
5151 # if defined(HAS_GETSPNAM) && !defined(_AIX)
5153 const int saverrno = errno;
5154 const struct spwd * const spwent = getspnam(pwent->pw_name);
5155 /* Save and restore errno so that
5156 * underprivileged attempts seem
5157 * to have never made the unsccessful
5158 * attempt to retrieve the shadow password. */
5160 if (spwent && spwent->sp_pwdp)
5161 sv_setpv(sv, spwent->sp_pwdp);
5165 if (!SvPOK(sv)) /* Use the standard password, then. */
5166 sv_setpv(sv, pwent->pw_passwd);
5169 # ifndef INCOMPLETE_TAINTS
5170 /* passwd is tainted because user himself can diddle with it.
5171 * admittedly not much and in a very limited way, but nevertheless. */
5175 # if Uid_t_sign <= 0
5176 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_uid)));
5178 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_uid)));
5181 # if Uid_t_sign <= 0
5182 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_gid)));
5184 PUSHs(sv_2mortal(newSVuv((UV)pwent->pw_gid)));
5186 /* pw_change, pw_quota, and pw_age are mutually exclusive--
5187 * because of the poor interface of the Perl getpw*(),
5188 * not because there's some standard/convention saying so.
5189 * A better interface would have been to return a hash,
5190 * but we are accursed by our history, alas. --jhi. */
5192 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_change)));
5195 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_quota)));
5198 PUSHs(sv_2mortal(newSVpv(pwent->pw_age, 0)));
5200 /* I think that you can never get this compiled, but just in case. */
5201 PUSHs(sv_mortalcopy(&PL_sv_no));
5206 /* pw_class and pw_comment are mutually exclusive--.
5207 * see the above note for pw_change, pw_quota, and pw_age. */
5209 PUSHs(sv_2mortal(newSVpv(pwent->pw_class, 0)));
5212 PUSHs(sv_2mortal(newSVpv(pwent->pw_comment, 0)));
5214 /* I think that you can never get this compiled, but just in case. */
5215 PUSHs(sv_mortalcopy(&PL_sv_no));
5220 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0)));
5222 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5224 # ifndef INCOMPLETE_TAINTS
5225 /* pw_gecos is tainted because user himself can diddle with it. */
5229 PUSHs(sv_2mortal(newSVpv(pwent->pw_dir, 0)));
5231 PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0)));
5232 # ifndef INCOMPLETE_TAINTS
5233 /* pw_shell is tainted because user himself can diddle with it. */
5238 PUSHs(sv_2mortal(newSViv((IV)pwent->pw_expire)));
5243 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5249 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
5254 DIE(aTHX_ PL_no_func, "setpwent");
5260 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5265 DIE(aTHX_ PL_no_func, "endpwent");
5273 const I32 which = PL_op->op_type;
5274 const struct group *grent;
5276 if (which == OP_GGRNAM) {
5277 const char* const name = POPpbytex;
5278 grent = (const struct group *)getgrnam(name);
5280 else if (which == OP_GGRGID) {
5281 const Gid_t gid = POPi;
5282 grent = (const struct group *)getgrgid(gid);
5286 grent = (struct group *)getgrent();
5288 DIE(aTHX_ PL_no_func, "getgrent");
5292 if (GIMME != G_ARRAY) {
5293 SV * const sv = sv_newmortal();
5297 if (which == OP_GGRNAM)
5298 sv_setiv(sv, (IV)grent->gr_gid);
5300 sv_setpv(sv, grent->gr_name);
5306 PUSHs(sv_2mortal(newSVpv(grent->gr_name, 0)));
5309 PUSHs(sv_2mortal(newSVpv(grent->gr_passwd, 0)));
5311 PUSHs(sv_mortalcopy(&PL_sv_no));
5314 PUSHs(sv_2mortal(newSViv((IV)grent->gr_gid)));
5316 #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API))
5317 /* In UNICOS/mk (_CRAYMPP) the multithreading
5318 * versions (getgrnam_r, getgrgid_r)
5319 * seem to return an illegal pointer
5320 * as the group members list, gr_mem.
5321 * getgrent() doesn't even have a _r version
5322 * but the gr_mem is poisonous anyway.
5323 * So yes, you cannot get the list of group
5324 * members if building multithreaded in UNICOS/mk. */
5325 PUSHs(space_join_names_mortal(grent->gr_mem));
5331 DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]);
5337 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5342 DIE(aTHX_ PL_no_func, "setgrent");
5348 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5353 DIE(aTHX_ PL_no_func, "endgrent");
5363 if (!(tmps = PerlProc_getlogin()))
5365 PUSHp(tmps, strlen(tmps));
5368 DIE(aTHX_ PL_no_func, "getlogin");
5372 /* Miscellaneous. */
5377 dVAR; dSP; dMARK; dORIGMARK; dTARGET;
5378 register I32 items = SP - MARK;
5379 unsigned long a[20];
5384 while (++MARK <= SP) {
5385 if (SvTAINTED(*MARK)) {
5391 TAINT_PROPER("syscall");
5394 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5395 * or where sizeof(long) != sizeof(char*). But such machines will
5396 * not likely have syscall implemented either, so who cares?
5398 while (++MARK <= SP) {
5399 if (SvNIOK(*MARK) || !i)
5400 a[i++] = SvIV(*MARK);
5401 else if (*MARK == &PL_sv_undef)
5404 a[i++] = (unsigned long)SvPV_force_nolen(*MARK);
5410 DIE(aTHX_ "Too many args to syscall");
5412 DIE(aTHX_ "Too few args to syscall");
5414 retval = syscall(a[0]);
5417 retval = syscall(a[0],a[1]);
5420 retval = syscall(a[0],a[1],a[2]);
5423 retval = syscall(a[0],a[1],a[2],a[3]);
5426 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5429 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5432 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5435 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5439 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5442 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5445 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5449 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5453 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5457 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5458 a[10],a[11],a[12],a[13]);
5460 #endif /* atarist */
5466 DIE(aTHX_ PL_no_func, "syscall");
5470 #ifdef FCNTL_EMULATE_FLOCK
5472 /* XXX Emulate flock() with fcntl().
5473 What's really needed is a good file locking module.
5477 fcntl_emulate_flock(int fd, int operation)
5481 switch (operation & ~LOCK_NB) {
5483 flock.l_type = F_RDLCK;
5486 flock.l_type = F_WRLCK;
5489 flock.l_type = F_UNLCK;
5495 flock.l_whence = SEEK_SET;
5496 flock.l_start = flock.l_len = (Off_t)0;
5498 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5501 #endif /* FCNTL_EMULATE_FLOCK */
5503 #ifdef LOCKF_EMULATE_FLOCK
5505 /* XXX Emulate flock() with lockf(). This is just to increase
5506 portability of scripts. The calls are not completely
5507 interchangeable. What's really needed is a good file
5511 /* The lockf() constants might have been defined in <unistd.h>.
5512 Unfortunately, <unistd.h> causes troubles on some mixed
5513 (BSD/POSIX) systems, such as SunOS 4.1.3.
5515 Further, the lockf() constants aren't POSIX, so they might not be
5516 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5517 just stick in the SVID values and be done with it. Sigh.
5521 # define F_ULOCK 0 /* Unlock a previously locked region */
5524 # define F_LOCK 1 /* Lock a region for exclusive use */
5527 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5530 # define F_TEST 3 /* Test a region for other processes locks */
5534 lockf_emulate_flock(int fd, int operation)
5537 const int save_errno = errno;
5540 /* flock locks entire file so for lockf we need to do the same */
5541 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5542 if (pos > 0) /* is seekable and needs to be repositioned */
5543 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5544 pos = -1; /* seek failed, so don't seek back afterwards */
5547 switch (operation) {
5549 /* LOCK_SH - get a shared lock */
5551 /* LOCK_EX - get an exclusive lock */
5553 i = lockf (fd, F_LOCK, 0);
5556 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5557 case LOCK_SH|LOCK_NB:
5558 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5559 case LOCK_EX|LOCK_NB:
5560 i = lockf (fd, F_TLOCK, 0);
5562 if ((errno == EAGAIN) || (errno == EACCES))
5563 errno = EWOULDBLOCK;
5566 /* LOCK_UN - unlock (non-blocking is a no-op) */
5568 case LOCK_UN|LOCK_NB:
5569 i = lockf (fd, F_ULOCK, 0);
5572 /* Default - can't decipher operation */
5579 if (pos > 0) /* need to restore position of the handle */
5580 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5585 #endif /* LOCKF_EMULATE_FLOCK */
5589 * c-indentation-style: bsd
5591 * indent-tabs-mode: t
5594 * ex: set ts=8 sts=4 sw=4 noet: