3 * Copyright (c) 1991-2000, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * But only a short way ahead its floor and the walls on either side were
12 * cloven by a great fissure, out of which the red glare came, now leaping
13 * up, now dying down into darkness; and all the while far below there was
14 * a rumour and a trouble as of great engines throbbing and labouring.
18 #define PERL_IN_PP_SYS_C
22 /* Shadow password support for solaris - pdo@cs.umd.edu
23 * Not just Solaris: at least HP-UX, IRIX, Linux.
24 * The API is from SysV.
26 * There are at least two more shadow interfaces,
27 * see the comments in pp_gpwent().
31 /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h>
32 * and another MAXINT from "perl.h" <- <sys/param.h>. */
38 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
45 extern "C" int syscall(unsigned long,...);
50 # include <sys/wait.h>
54 # include <sys/resource.h>
57 #if defined(HAS_SOCKET) && !defined(VMS) /* VMS handles sockets via vmsish.h */
58 # include <sys/socket.h>
59 # if defined(USE_SOCKS) && defined(I_SOCKS)
67 # include <net/errno.h>
74 #include <sys/select.h>
78 /* XXX Configure test needed.
79 h_errno might not be a simple 'int', especially for multi-threaded
80 applications, see "extern int errno in perl.h". Creating such
81 a test requires taking into account the differences between
82 compiling multithreaded and singlethreaded ($ccflags et al).
83 HOST_NOT_FOUND is typically defined in <netdb.h>.
85 #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__)
93 struct passwd *getpwnam (char *);
94 struct passwd *getpwuid (Uid_t);
97 struct passwd *getpwent (void);
105 struct group *getgrnam (char *);
106 struct group *getgrgid (Gid_t);
109 struct group *getgrent (void);
114 # if defined(_MSC_VER) || defined(__MINGW32__)
115 # include <sys/utime.h>
121 /* Put this after #includes because fork and vfork prototypes may conflict. */
127 # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */
130 # define my_chsize PerlLIO_chsize
135 #else /* no flock() */
137 /* fcntl.h might not have been included, even if it exists, because
138 the current Configure only sets I_FCNTL if it's needed to pick up
139 the *_OK constants. Make sure it has been included before testing
140 the fcntl() locking constants. */
141 # if defined(HAS_FCNTL) && !defined(I_FCNTL)
145 # if defined(HAS_FCNTL) && defined(F_SETLK) && defined (F_SETLKW)
146 # define FLOCK fcntl_emulate_flock
147 # define FCNTL_EMULATE_FLOCK
148 # else /* no flock() or fcntl(F_SETLK,...) */
150 # define FLOCK lockf_emulate_flock
151 # define LOCKF_EMULATE_FLOCK
153 # endif /* no flock() or fcntl(F_SETLK,...) */
156 static int FLOCK (int, int);
159 * These are the flock() constants. Since this sytems doesn't have
160 * flock(), the values of the constants are probably not available.
174 # endif /* emulating flock() */
176 #endif /* no flock() */
179 static char zero_but_true[ZBTLEN + 1] = "0 but true";
181 #if defined(I_SYS_ACCESS) && !defined(R_OK)
182 # include <sys/access.h>
185 #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC)
186 # define FD_CLOEXEC 1 /* NeXT needs this */
189 #undef PERL_EFF_ACCESS_R_OK /* EFFective uid/gid ACCESS R_OK */
190 #undef PERL_EFF_ACCESS_W_OK
191 #undef PERL_EFF_ACCESS_X_OK
193 /* F_OK unused: if stat() cannot find it... */
195 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK)
196 /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */
197 # define PERL_EFF_ACCESS_R_OK(p) (access((p), R_OK | EFF_ONLY_OK))
198 # define PERL_EFF_ACCESS_W_OK(p) (access((p), W_OK | EFF_ONLY_OK))
199 # define PERL_EFF_ACCESS_X_OK(p) (access((p), X_OK | EFF_ONLY_OK))
202 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_EACCESS)
203 # ifdef I_SYS_SECURITY
204 # include <sys/security.h>
208 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK, ACC_SELF))
209 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK, ACC_SELF))
210 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK, ACC_SELF))
213 # define PERL_EFF_ACCESS_R_OK(p) (eaccess((p), R_OK))
214 # define PERL_EFF_ACCESS_W_OK(p) (eaccess((p), W_OK))
215 # define PERL_EFF_ACCESS_X_OK(p) (eaccess((p), X_OK))
219 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESSX) && defined(ACC_SELF)
221 # define PERL_EFF_ACCESS_R_OK(p) (accessx((p), R_OK, ACC_SELF))
222 # define PERL_EFF_ACCESS_W_OK(p) (accessx((p), W_OK, ACC_SELF))
223 # define PERL_EFF_ACCESS_X_OK(p) (accessx((p), X_OK, ACC_SELF))
226 #if !defined(PERL_EFF_ACCESS_R_OK) && defined(HAS_ACCESS) \
227 && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \
228 || defined(HAS_SETREGID) || defined(HAS_SETRESGID))
231 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
233 Uid_t ruid = getuid();
234 Uid_t euid = geteuid();
235 Gid_t rgid = getgid();
236 Gid_t egid = getegid();
240 #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID)
241 Perl_croak(aTHX_ "switching effective uid is not implemented");
244 if (setreuid(euid, ruid))
247 if (setresuid(euid, ruid, (Uid_t)-1))
250 Perl_croak(aTHX_ "entering effective uid failed");
253 #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID)
254 Perl_croak(aTHX_ "switching effective gid is not implemented");
257 if (setregid(egid, rgid))
260 if (setresgid(egid, rgid, (Gid_t)-1))
263 Perl_croak(aTHX_ "entering effective gid failed");
266 res = access(path, mode);
269 if (setreuid(ruid, euid))
272 if (setresuid(ruid, euid, (Uid_t)-1))
275 Perl_croak(aTHX_ "leaving effective uid failed");
278 if (setregid(rgid, egid))
281 if (setresgid(rgid, egid, (Gid_t)-1))
284 Perl_croak(aTHX_ "leaving effective gid failed");
289 # define PERL_EFF_ACCESS_R_OK(p) (emulate_eaccess((p), R_OK))
290 # define PERL_EFF_ACCESS_W_OK(p) (emulate_eaccess((p), W_OK))
291 # define PERL_EFF_ACCESS_X_OK(p) (emulate_eaccess((p), X_OK))
294 #if !defined(PERL_EFF_ACCESS_R_OK)
296 S_emulate_eaccess(pTHX_ const char* path, Mode_t mode)
298 Perl_croak(aTHX_ "switching effective uid is not implemented");
314 if (PL_op->op_private & OPpOPEN_IN_RAW)
316 else if (PL_op->op_private & OPpOPEN_IN_CRLF)
318 fp = PerlProc_popen(tmps, mode);
320 if (gimme == G_VOID) {
322 while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0)
326 else if (gimme == G_SCALAR) {
327 sv_setpv(TARG, ""); /* note that this preserves previous buffer */
328 while (sv_gets(TARG, fp, SvCUR(TARG)) != Nullch)
339 if (sv_gets(sv, fp, 0) == Nullch) {
343 XPUSHs(sv_2mortal(sv));
344 if (SvLEN(sv) - SvCUR(sv) > 20) {
345 SvLEN_set(sv, SvCUR(sv)+1);
346 Renew(SvPVX(sv), SvLEN(sv), char);
351 STATUS_NATIVE_SET(PerlProc_pclose(fp));
352 TAINT; /* "I believe that this is not gratuitous!" */
355 STATUS_NATIVE_SET(-1);
356 if (gimme == G_SCALAR)
366 tryAMAGICunTARGET(iter, -1);
368 /* Note that we only ever get here if File::Glob fails to load
369 * without at the same time croaking, for some reason, or if
370 * perl was built with PERL_EXTERNAL_GLOB */
377 * The external globbing program may use things we can't control,
378 * so for security reasons we must assume the worst.
381 taint_proper(PL_no_security, "glob");
385 SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */
386 PL_last_in_gv = (GV*)*PL_stack_sp--;
388 SAVESPTR(PL_rs); /* This is not permanent, either. */
389 PL_rs = sv_2mortal(newSVpvn("\000", 1));
392 *SvPVX(PL_rs) = '\n';
396 result = do_readline();
401 #if 0 /* XXX never used! */
405 PL_last_in_gv = gv_fetchpv(SvPVx(GvSV((GV*)(*PL_stack_sp--)), n_a), TRUE,SVt_PVIO);
406 return do_readline();
412 PL_last_in_gv = cGVOP_gv;
413 return do_readline();
422 if (SP - MARK != 1) {
424 do_join(TARG, &PL_sv_no, MARK, SP);
431 tmps = SvPV(tmpsv, len);
434 (void)SvUPGRADE(error, SVt_PV);
435 if (SvPOK(error) && SvCUR(error))
436 sv_catpv(error, "\t...caught");
438 tmps = SvPV(tmpsv, len);
441 tmpsv = sv_2mortal(newSVpvn("Warning: something's wrong", 26));
443 Perl_warn(aTHX_ "%"SVf, tmpsv);
454 if (SP - MARK != 1) {
456 do_join(TARG, &PL_sv_no, MARK, SP);
458 tmps = SvPV(tmpsv, len);
464 tmps = SvROK(tmpsv) ? Nullch : SvPV(tmpsv, len);
468 (void)SvUPGRADE(error, SVt_PV);
469 if (multiarg ? SvROK(error) : SvROK(tmpsv)) {
471 SvSetSV(error,tmpsv);
472 else if (sv_isobject(error)) {
473 HV *stash = SvSTASH(SvRV(error));
474 GV *gv = gv_fetchmethod(stash, "PROPAGATE");
476 SV *file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0));
477 SV *line = sv_2mortal(newSVuv(CopLINE(PL_curcop)));
484 call_sv((SV*)GvCV(gv),
485 G_SCALAR|G_EVAL|G_KEEPERR);
486 sv_setsv(error,*PL_stack_sp--);
492 if (SvPOK(error) && SvCUR(error))
493 sv_catpv(error, "\t...propagated");
495 tmps = SvPV(tmpsv, len);
499 tmpsv = sv_2mortal(newSVpvn("Died", 4));
501 DIE(aTHX_ "%"SVf, tmpsv);
524 DIE(aTHX_ PL_no_usym, "filehandle");
529 DIE(aTHX_ PL_no_usym, "filehandle");
531 IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT;
533 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
535 XPUSHs(SvTIED_obj((SV*)gv, mg));
541 call_method("OPEN", G_SCALAR);
547 tmps = SvPV(sv, len);
548 if (do_open9(gv, tmps, len, FALSE, O_RDONLY, 0, Nullfp, name, have_name))
549 PUSHi( (I32)PL_forkprocess );
550 else if (PL_forkprocess == 0) /* we are a new child */
568 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
570 XPUSHs(SvTIED_obj((SV*)gv, mg));
573 call_method("CLOSE", G_SCALAR);
579 PUSHs(boolSV(do_close(gv, TRUE)));
599 if (SvTYPE(rgv) != SVt_PVGV || SvTYPE(wgv) != SVt_PVGV)
600 DIE(aTHX_ PL_no_usym, "filehandle");
605 do_close(rgv, FALSE);
607 do_close(wgv, FALSE);
609 if (PerlProc_pipe(fd) < 0)
612 IoIFP(rstio) = PerlIO_fdopen(fd[0], "r");
613 IoOFP(wstio) = PerlIO_fdopen(fd[1], "w");
614 IoIFP(wstio) = IoOFP(wstio);
618 if (!IoIFP(rstio) || !IoOFP(wstio)) {
619 if (IoIFP(rstio)) PerlIO_close(IoIFP(rstio));
620 else PerlLIO_close(fd[0]);
621 if (IoOFP(wstio)) PerlIO_close(IoOFP(wstio));
622 else PerlLIO_close(fd[1]);
625 #if defined(HAS_FCNTL) && defined(F_SETFD)
626 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
627 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
634 DIE(aTHX_ PL_no_func, "pipe");
650 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
652 XPUSHs(SvTIED_obj((SV*)gv, mg));
655 call_method("FILENO", G_SCALAR);
661 if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io)))
663 PUSHi(PerlIO_fileno(fp));
674 anum = PerlLIO_umask(0);
675 (void)PerlLIO_umask(anum);
678 anum = PerlLIO_umask(POPi);
679 TAINT_PROPER("umask");
682 /* Only DIE if trying to restrict permissions on `user' (self).
683 * Otherwise it's harmless and more useful to just return undef
684 * since 'group' and 'other' concepts probably don't exist here. */
685 if (MAXARG >= 1 && (POPi & 0700))
686 DIE(aTHX_ "umask not implemented");
687 XPUSHs(&PL_sv_undef);
708 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
710 XPUSHs(SvTIED_obj((SV*)gv, mg));
715 call_method("BINMODE", G_SCALAR);
722 if (!(io = GvIO(gv)) || !(fp = IoIFP(io)))
725 if (do_binmode(fp,IoTYPE(io),mode_from_discipline(discp)))
739 I32 markoff = MARK - PL_stack_base;
746 switch(SvTYPE(varsv)) {
748 methname = "TIEHASH";
751 methname = "TIEARRAY";
754 methname = "TIEHANDLE";
758 methname = "TIESCALAR";
763 if (sv_isobject(*MARK)) {
765 PUSHSTACKi(PERLSI_MAGIC);
771 call_method(methname, G_SCALAR);
774 /* Not clear why we don't call call_method here too.
775 * perhaps to get different error message ?
777 stash = gv_stashsv(*MARK, FALSE);
778 if (!stash || !(gv = gv_fetchmethod(stash, methname))) {
779 DIE(aTHX_ "Can't locate object method \"%s\" via package \"%s\"",
780 methname, SvPV(*MARK,n_a));
783 PUSHSTACKi(PERLSI_MAGIC);
789 call_sv((SV*)GvCV(gv), G_SCALAR);
795 if (sv_isobject(sv)) {
796 sv_unmagic(varsv, how);
797 sv_magic(varsv, (SvRV(sv) == varsv ? Nullsv : sv), how, Nullch, 0);
800 SP = PL_stack_base + markoff;
809 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
811 if (ckWARN(WARN_UNTIE)) {
813 if ((mg = SvTIED_mg(sv, how))) {
814 if (mg && SvREFCNT(SvRV(mg->mg_obj)) > 1)
815 Perl_warner(aTHX_ WARN_UNTIE,
816 "untie attempted while %"UVuf" inner references still exist",
817 (UV)SvREFCNT(SvRV(mg->mg_obj)) - 1 ) ;
829 char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) ? 'P' : 'q';
832 if ((mg = SvTIED_mg(sv, how))) {
833 SV *osv = SvTIED_obj(sv, mg);
834 if (osv == mg->mg_obj)
835 osv = sv_mortalcopy(osv);
853 sv = sv_mortalcopy(&PL_sv_no);
854 sv_setpv(sv, "AnyDBM_File");
855 stash = gv_stashsv(sv, FALSE);
856 if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) {
858 require_pv("AnyDBM_File.pm");
860 if (!(gv = gv_fetchmethod(stash, "TIEHASH")))
861 DIE(aTHX_ "No dbm on this machine");
871 PUSHs(sv_2mortal(newSVuv(O_RDWR|O_CREAT)));
873 PUSHs(sv_2mortal(newSVuv(O_RDWR)));
876 call_sv((SV*)GvCV(gv), G_SCALAR);
879 if (!sv_isobject(TOPs)) {
884 PUSHs(sv_2mortal(newSVuv(O_RDONLY)));
887 call_sv((SV*)GvCV(gv), G_SCALAR);
891 if (sv_isobject(TOPs)) {
892 sv_unmagic((SV *) hv, 'P');
893 sv_magic((SV*)hv, TOPs, 'P', Nullch, 0);
915 struct timeval timebuf;
916 struct timeval *tbuf = &timebuf;
920 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
925 # if BYTEORDER & 0xf0000
926 # define ORDERBYTE (0x88888888 - BYTEORDER)
928 # define ORDERBYTE (0x4444 - BYTEORDER)
934 for (i = 1; i <= 3; i++) {
942 /* little endians can use vecs directly */
943 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678
944 # if SELECT_MIN_BITS > 1
945 /* If SELECT_MIN_BITS is greater than one we most probably will want
946 * to align the sizes with SELECT_MIN_BITS/8 because for example
947 * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital
948 * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates
949 * on (sets/tests/clears bits) is 32 bits. */
950 growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8)));
952 growsize = sizeof(fd_set);
961 masksize = NFDBITS / NBBY;
963 masksize = sizeof(long); /* documented int, everyone seems to use long */
965 growsize = maxlen + (masksize - (maxlen % masksize));
966 Zero(&fd_sets[0], 4, char*);
974 timebuf.tv_sec = (long)value;
975 value -= (NV)timebuf.tv_sec;
976 timebuf.tv_usec = (long)(value * 1000000.0);
979 tbuf = Null(struct timeval*);
981 for (i = 1; i <= 3; i++) {
988 SvPV_force(sv,n_a); /* force string conversion */
991 Sv_Grow(sv, growsize);
995 while (++j <= growsize) {
999 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1001 New(403, fd_sets[i], growsize, char);
1002 for (offset = 0; offset < growsize; offset += masksize) {
1003 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1004 fd_sets[i][j+offset] = s[(k % masksize) + offset];
1007 fd_sets[i] = SvPVX(sv);
1011 nfound = PerlSock_select(
1013 (Select_fd_set_t) fd_sets[1],
1014 (Select_fd_set_t) fd_sets[2],
1015 (Select_fd_set_t) fd_sets[3],
1017 for (i = 1; i <= 3; i++) {
1020 #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678
1022 for (offset = 0; offset < growsize; offset += masksize) {
1023 for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4))
1024 s[(k % masksize) + offset] = fd_sets[i][j+offset];
1026 Safefree(fd_sets[i]);
1033 if (GIMME == G_ARRAY && tbuf) {
1034 value = (NV)(timebuf.tv_sec) +
1035 (NV)(timebuf.tv_usec) / 1000000.0;
1036 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
1037 sv_setnv(sv, value);
1041 DIE(aTHX_ "select not implemented");
1046 Perl_setdefout(pTHX_ GV *gv)
1050 (void)SvREFCNT_inc(gv);
1052 SvREFCNT_dec(PL_defoutgv);
1059 GV *newdefout, *egv;
1062 newdefout = (PL_op->op_private > 0) ? ((GV *) POPs) : (GV *) NULL;
1064 egv = GvEGV(PL_defoutgv);
1069 XPUSHs(&PL_sv_undef);
1071 GV **gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE);
1072 if (gvp && *gvp == egv) {
1073 gv_efullname4(TARG, PL_defoutgv, Nullch, FALSE);
1077 XPUSHs(sv_2mortal(newRV((SV*)egv)));
1082 if (!GvIO(newdefout))
1083 gv_IOadd(newdefout);
1084 setdefout(newdefout);
1101 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
1102 I32 gimme = GIMME_V;
1104 XPUSHs(SvTIED_obj((SV*)gv, mg));
1107 call_method("GETC", gimme);
1110 if (gimme == G_SCALAR)
1111 SvSetMagicSV_nosteal(TARG, TOPs);
1114 if (!gv || do_eof(gv)) /* make sure we have fp with something */
1117 sv_setpv(TARG, " ");
1118 *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */
1125 return pp_sysread();
1129 S_doform(pTHX_ CV *cv, GV *gv, OP *retop)
1132 register PERL_CONTEXT *cx;
1133 I32 gimme = GIMME_V;
1134 AV* padlist = CvPADLIST(cv);
1135 SV** svp = AvARRAY(padlist);
1141 PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp);
1143 SAVEVPTR(PL_curpad);
1144 PL_curpad = AvARRAY((AV*)svp[1]);
1146 setdefout(gv); /* locally select filehandle so $% et al work */
1178 SV *tmpsv = sv_newmortal();
1179 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1180 DIE(aTHX_ "Undefined format \"%s\" called",SvPVX(tmpsv));
1182 DIE(aTHX_ "Not a format reference");
1185 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1187 IoFLAGS(io) &= ~IOf_DIDTOP;
1188 return doform(cv,gv,PL_op->op_next);
1194 GV *gv = cxstack[cxstack_ix].blk_sub.gv;
1195 register IO *io = GvIOp(gv);
1196 PerlIO *ofp = IoOFP(io);
1200 register PERL_CONTEXT *cx;
1202 DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n",
1203 (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget)));
1204 if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) &&
1205 PL_formtarget != PL_toptarget)
1209 if (!IoTOP_GV(io)) {
1213 if (!IoTOP_NAME(io)) {
1214 if (!IoFMT_NAME(io))
1215 IoFMT_NAME(io) = savepv(GvNAME(gv));
1216 topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", IoFMT_NAME(io)));
1217 topgv = gv_fetchpv(SvPVX(topname), FALSE, SVt_PVFM);
1218 if ((topgv && GvFORM(topgv)) ||
1219 !gv_fetchpv("top",FALSE,SVt_PVFM))
1220 IoTOP_NAME(io) = savepv(SvPVX(topname));
1222 IoTOP_NAME(io) = savepv("top");
1224 topgv = gv_fetchpv(IoTOP_NAME(io),FALSE, SVt_PVFM);
1225 if (!topgv || !GvFORM(topgv)) {
1226 IoLINES_LEFT(io) = 100000000;
1229 IoTOP_GV(io) = topgv;
1231 if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */
1232 I32 lines = IoLINES_LEFT(io);
1233 char *s = SvPVX(PL_formtarget);
1234 if (lines <= 0) /* Yow, header didn't even fit!!! */
1236 while (lines-- > 0) {
1237 s = strchr(s, '\n');
1243 PerlIO_write(ofp, SvPVX(PL_formtarget), s - SvPVX(PL_formtarget));
1244 sv_chop(PL_formtarget, s);
1245 FmLINES(PL_formtarget) -= IoLINES_LEFT(io);
1248 if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0)
1249 PerlIO_write(ofp, SvPVX(PL_formfeed), SvCUR(PL_formfeed));
1250 IoLINES_LEFT(io) = IoPAGE_LEN(io);
1252 PL_formtarget = PL_toptarget;
1253 IoFLAGS(io) |= IOf_DIDTOP;
1256 DIE(aTHX_ "bad top format reference");
1259 SV *tmpsv = sv_newmortal();
1260 gv_efullname4(tmpsv, fgv, Nullch, FALSE);
1261 DIE(aTHX_ "Undefined top format \"%s\" called",SvPVX(tmpsv));
1264 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
1265 return doform(cv,gv,PL_op);
1269 POPBLOCK(cx,PL_curpm);
1275 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1277 SV* sv = sv_newmortal();
1278 gv_efullname4(sv, gv, Nullch, FALSE);
1279 Perl_warner(aTHX_ WARN_IO,
1280 "Filehandle %s opened only for input",
1283 else if (ckWARN(WARN_CLOSED))
1284 report_closed_fh(gv, io, "write", "filehandle");
1289 if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) {
1290 if (ckWARN(WARN_IO))
1291 Perl_warner(aTHX_ WARN_IO, "page overflow");
1293 if (!PerlIO_write(ofp, SvPVX(PL_formtarget), SvCUR(PL_formtarget)) ||
1297 FmLINES(PL_formtarget) = 0;
1298 SvCUR_set(PL_formtarget, 0);
1299 *SvEND(PL_formtarget) = '\0';
1300 if (IoFLAGS(io) & IOf_FLUSH)
1301 (void)PerlIO_flush(fp);
1305 PL_formtarget = PL_bodytarget;
1307 return pop_return();
1312 djSP; dMARK; dORIGMARK;
1320 if (PL_op->op_flags & OPf_STACKED)
1325 if ((mg = SvTIED_mg((SV*)gv, 'q'))) {
1326 if (MARK == ORIGMARK) {
1329 Move(MARK, MARK + 1, (SP - MARK) + 1, SV*);
1333 *MARK = SvTIED_obj((SV*)gv, mg);
1336 call_method("PRINTF", G_SCALAR);
1339 MARK = ORIGMARK + 1;
1346 if (!(io = GvIO(gv))) {
1347 if (ckWARN(WARN_UNOPENED)) {
1348 gv_efullname4(sv, gv, Nullch, FALSE);
1349 Perl_warner(aTHX_ WARN_UNOPENED,
1350 "Filehandle %s never opened", SvPV(sv,n_a));
1352 SETERRNO(EBADF,RMS$_IFI);
1355 else if (!(fp = IoOFP(io))) {
1356 if (ckWARN2(WARN_CLOSED,WARN_IO)) {
1358 gv_efullname4(sv, gv, Nullch, FALSE);
1359 Perl_warner(aTHX_ WARN_IO,
1360 "Filehandle %s opened only for input",
1363 else if (ckWARN(WARN_CLOSED))
1364 report_closed_fh(gv, io, "printf", "filehandle");
1366 SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI);
1370 do_sprintf(sv, SP - MARK, MARK + 1);
1371 if (!do_print(sv, fp))
1374 if (IoFLAGS(io) & IOf_FLUSH)
1375 if (PerlIO_flush(fp) == EOF)
1386 PUSHs(&PL_sv_undef);
1407 /* Need TIEHANDLE method ? */
1409 tmps = SvPV(sv, len);
1410 if (do_open(gv, tmps, len, TRUE, mode, perm, Nullfp)) {
1411 IoLINES(GvIOp(gv)) = 0;
1415 PUSHs(&PL_sv_undef);
1422 djSP; dMARK; dORIGMARK; dTARGET;
1428 Sock_size_t bufsize;
1434 if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) &&
1435 (mg = SvTIED_mg((SV*)gv, 'q')))
1440 *MARK = SvTIED_obj((SV*)gv, mg);
1442 call_method("READ", G_SCALAR);
1455 sv_setpvn(bufsv, "", 0);
1456 buffer = SvPV_force(bufsv, blen);
1457 length = SvIVx(*++MARK);
1459 DIE(aTHX_ "Negative length");
1462 offset = SvIVx(*++MARK);
1466 if (!io || !IoIFP(io))
1469 if (PL_op->op_type == OP_RECV) {
1470 char namebuf[MAXPATHLEN];
1471 #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE)
1472 bufsize = sizeof (struct sockaddr_in);
1474 bufsize = sizeof namebuf;
1476 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1480 #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */
1484 buffer = SvGROW(bufsv, length+1);
1485 /* 'offset' means 'flags' here */
1486 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset,
1487 (struct sockaddr *)namebuf, &bufsize);
1490 SvCUR_set(bufsv, length);
1491 *SvEND(bufsv) = '\0';
1492 (void)SvPOK_only(bufsv);
1494 /* This should not be marked tainted if the fp is marked clean */
1495 if (!(IoFLAGS(io) & IOf_UNTAINT))
1496 SvTAINTED_on(bufsv);
1498 sv_setpvn(TARG, namebuf, bufsize);
1503 if (PL_op->op_type == OP_RECV)
1504 DIE(aTHX_ PL_no_sock_func, "recv");
1508 DIE(aTHX_ "Offset outside string");
1511 bufsize = SvCUR(bufsv);
1512 buffer = SvGROW(bufsv, length+offset+1);
1513 if (offset > bufsize) { /* Zero any newly allocated space */
1514 Zero(buffer+bufsize, offset-bufsize, char);
1516 if (PL_op->op_type == OP_SYSREAD) {
1517 #ifdef PERL_SOCK_SYSREAD_IS_RECV
1518 if (IoTYPE(io) == 's') {
1519 length = PerlSock_recv(PerlIO_fileno(IoIFP(io)),
1520 buffer+offset, length, 0);
1525 length = PerlLIO_read(PerlIO_fileno(IoIFP(io)),
1526 buffer+offset, length);
1530 #ifdef HAS_SOCKET__bad_code_maybe
1531 if (IoTYPE(io) == 's') {
1532 char namebuf[MAXPATHLEN];
1533 #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)
1534 bufsize = sizeof (struct sockaddr_in);
1536 bufsize = sizeof namebuf;
1538 length = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer+offset, length, 0,
1539 (struct sockaddr *)namebuf, &bufsize);
1544 length = PerlIO_read(IoIFP(io), buffer+offset, length);
1545 /* fread() returns 0 on both error and EOF */
1546 if (length == 0 && PerlIO_error(IoIFP(io)))
1550 if ((IoTYPE(io) == '>' || IoIFP(io) == PerlIO_stdout()
1551 || IoIFP(io) == PerlIO_stderr()) && ckWARN(WARN_IO))
1553 SV* sv = sv_newmortal();
1554 gv_efullname4(sv, gv, Nullch, FALSE);
1555 Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output",
1560 SvCUR_set(bufsv, length+offset);
1561 *SvEND(bufsv) = '\0';
1562 (void)SvPOK_only(bufsv);
1564 /* This should not be marked tainted if the fp is marked clean */
1565 if (!(IoFLAGS(io) & IOf_UNTAINT))
1566 SvTAINTED_on(bufsv);
1579 int items = (SP - PL_stack_base) - TOPMARK;
1583 sv = sv_2mortal(newSViv(sv_len(*SP)));
1592 djSP; dMARK; dORIGMARK; dTARGET;
1604 if (PL_op->op_type == OP_SYSWRITE && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1608 *MARK = SvTIED_obj((SV*)gv, mg);
1610 call_method("WRITE", G_SCALAR);
1621 buffer = SvPV(bufsv, blen);
1622 #if Size_t_size > IVSIZE
1623 length = (Size_t)SvNVx(*++MARK);
1625 length = (Size_t)SvIVx(*++MARK);
1627 if ((SSize_t)length < 0)
1628 DIE(aTHX_ "Negative length");
1631 if (!io || !IoIFP(io)) {
1633 if (ckWARN(WARN_CLOSED)) {
1634 if (PL_op->op_type == OP_SYSWRITE)
1635 report_closed_fh(gv, io, "syswrite", "filehandle");
1637 report_closed_fh(gv, io, "send", "socket");
1640 else if (PL_op->op_type == OP_SYSWRITE) {
1642 offset = SvIVx(*++MARK);
1645 DIE(aTHX_ "Offset outside string");
1647 } else if (offset >= blen && blen > 0)
1648 DIE(aTHX_ "Offset outside string");
1651 if (length > blen - offset)
1652 length = blen - offset;
1653 #ifdef PERL_SOCK_SYSWRITE_IS_SEND
1654 if (IoTYPE(io) == 's') {
1655 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)),
1656 buffer+offset, length, 0);
1661 /* See the note at doio.c:do_print about filesize limits. --jhi */
1662 retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)),
1663 buffer+offset, length);
1667 else if (SP > MARK) {
1670 sockbuf = SvPVx(*++MARK, mlen);
1671 retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen,
1672 length, (struct sockaddr *)sockbuf, mlen);
1675 retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, length);
1679 DIE(aTHX_ PL_no_sock_func, "send");
1684 #if Size_t_size > IVSIZE
1698 return pp_sysread();
1708 if (PL_op->op_flags & OPf_SPECIAL) { /* eof() */
1710 gv = PL_last_in_gv = PL_argvgv;
1712 if (io && !IoIFP(io)) {
1713 if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) {
1715 IoFLAGS(io) &= ~IOf_START;
1716 do_open(gv, "-", 1, FALSE, O_RDONLY, 0, Nullfp);
1717 sv_setpvn(GvSV(gv), "-", 1);
1718 SvSETMAGIC(GvSV(gv));
1720 else if (!nextargv(gv))
1725 gv = PL_last_in_gv; /* eof */
1728 gv = PL_last_in_gv = (GV*)POPs; /* eof(FH) */
1730 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1732 XPUSHs(SvTIED_obj((SV*)gv, mg));
1735 call_method("EOF", G_SCALAR);
1741 PUSHs(boolSV(!gv || do_eof(gv)));
1754 gv = PL_last_in_gv = (GV*)POPs;
1756 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1758 XPUSHs(SvTIED_obj((SV*)gv, mg));
1761 call_method("TELL", G_SCALAR);
1767 #if LSEEKSIZE > IVSIZE
1768 PUSHn( do_tell(gv) );
1770 PUSHi( do_tell(gv) );
1777 return pp_sysseek();
1785 #if LSEEKSIZE > IVSIZE
1786 Off_t offset = (Off_t)SvNVx(POPs);
1788 Off_t offset = (Off_t)SvIVx(POPs);
1792 gv = PL_last_in_gv = (GV*)POPs;
1794 if (gv && (mg = SvTIED_mg((SV*)gv, 'q'))) {
1796 XPUSHs(SvTIED_obj((SV*)gv, mg));
1797 #if LSEEKSIZE > IVSIZE
1798 XPUSHs(sv_2mortal(newSVnv((NV) offset)));
1800 XPUSHs(sv_2mortal(newSViv(offset)));
1802 XPUSHs(sv_2mortal(newSViv(whence)));
1805 call_method("SEEK", G_SCALAR);
1811 if (PL_op->op_type == OP_SEEK)
1812 PUSHs(boolSV(do_seek(gv, offset, whence)));
1814 Off_t sought = do_sysseek(gv, offset, whence);
1816 PUSHs(&PL_sv_undef);
1819 #if LSEEKSIZE > IVSIZE
1824 : newSVpvn(zero_but_true, ZBTLEN);
1825 PUSHs(sv_2mortal(sv));
1834 /* There seems to be no consensus on the length type of truncate()
1835 * and ftruncate(), both off_t and size_t have supporters. In
1836 * general one would think that when using large files, off_t is
1837 * at least as wide as size_t, so using an off_t should be okay. */
1838 /* XXX Configure probe for the length type of *truncate() needed XXX */
1844 #if Size_t_size > IVSIZE
1849 /* Checking for length < 0 is problematic as the type might or
1850 * might not be signed: if it is not, clever compilers will moan. */
1851 /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */
1853 #if defined(HAS_TRUNCATE) || defined(HAS_CHSIZE) || defined(F_FREESP)
1854 if (PL_op->op_flags & OPf_SPECIAL) {
1855 tmpgv = gv_fetchpv(POPpx, FALSE, SVt_PVIO);
1857 TAINT_PROPER("truncate");
1858 if (!GvIO(tmpgv) || !IoIFP(GvIOp(tmpgv)))
1861 PerlIO_flush(IoIFP(GvIOp(tmpgv)));
1863 if (ftruncate(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1865 if (my_chsize(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), len) < 0)
1875 if (SvTYPE(sv) == SVt_PVGV) {
1876 tmpgv = (GV*)sv; /* *main::FRED for example */
1879 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
1880 tmpgv = (GV*) SvRV(sv); /* \*main::FRED for example */
1884 name = SvPV(sv, n_a);
1885 TAINT_PROPER("truncate");
1887 if (truncate(name, len) < 0)
1892 if ((tmpfd = PerlLIO_open(name, O_RDWR)) < 0)
1895 if (my_chsize(tmpfd, len) < 0)
1897 PerlLIO_close(tmpfd);
1906 SETERRNO(EBADF,RMS$_IFI);
1909 DIE(aTHX_ "truncate not implemented");
1922 unsigned int func = U_I(POPn);
1923 int optype = PL_op->op_type;
1929 if (!io || !argsv || !IoIFP(io)) {
1930 SETERRNO(EBADF,RMS$_IFI); /* well, sort of... */
1934 if (SvPOK(argsv) || !SvNIOK(argsv)) {
1937 s = SvPV_force(argsv, len);
1938 need = IOCPARM_LEN(func);
1940 s = Sv_Grow(argsv, need + 1);
1941 SvCUR_set(argsv, need);
1944 s[SvCUR(argsv)] = 17; /* a little sanity check here */
1947 retval = SvIV(argsv);
1948 s = INT2PTR(char*,retval); /* ouch */
1951 TAINT_PROPER(optype == OP_IOCTL ? "ioctl" : "fcntl");
1953 if (optype == OP_IOCTL)
1955 retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s);
1957 DIE(aTHX_ "ioctl is not implemented");
1961 #if defined(OS2) && defined(__EMX__)
1962 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s);
1964 retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s);
1967 DIE(aTHX_ "fcntl is not implemented");
1971 if (s[SvCUR(argsv)] != 17)
1972 DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument",
1973 PL_op_name[optype]);
1974 s[SvCUR(argsv)] = 0; /* put our null back */
1975 SvSETMAGIC(argsv); /* Assume it has changed */
1984 PUSHp(zero_but_true, ZBTLEN);
2004 fp = IoIFP(GvIOp(gv));
2008 (void)PerlIO_flush(fp);
2009 value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0);
2013 SETERRNO(EBADF,RMS$_IFI);
2014 if (ckWARN(WARN_CLOSED))
2015 report_closed_fh(gv, GvIO(gv), "flock", "filehandle");
2020 DIE(aTHX_ PL_no_func, "flock()");
2032 int protocol = POPi;
2040 SETERRNO(EBADF,LIB$_INVARG);
2046 do_close(gv, FALSE);
2048 TAINT_PROPER("socket");
2049 fd = PerlSock_socket(domain, type, protocol);
2052 IoIFP(io) = PerlIO_fdopen(fd, "r"); /* stdio gets confused about sockets */
2053 IoOFP(io) = PerlIO_fdopen(fd, "w");
2055 if (!IoIFP(io) || !IoOFP(io)) {
2056 if (IoIFP(io)) PerlIO_close(IoIFP(io));
2057 if (IoOFP(io)) PerlIO_close(IoOFP(io));
2058 if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd);
2061 #if defined(HAS_FCNTL) && defined(F_SETFD)
2062 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2067 DIE(aTHX_ PL_no_sock_func, "socket");
2074 #ifdef HAS_SOCKETPAIR
2079 int protocol = POPi;
2092 do_close(gv1, FALSE);
2094 do_close(gv2, FALSE);
2096 TAINT_PROPER("socketpair");
2097 if (PerlSock_socketpair(domain, type, protocol, fd) < 0)
2099 IoIFP(io1) = PerlIO_fdopen(fd[0], "r");
2100 IoOFP(io1) = PerlIO_fdopen(fd[0], "w");
2102 IoIFP(io2) = PerlIO_fdopen(fd[1], "r");
2103 IoOFP(io2) = PerlIO_fdopen(fd[1], "w");
2105 if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) {
2106 if (IoIFP(io1)) PerlIO_close(IoIFP(io1));
2107 if (IoOFP(io1)) PerlIO_close(IoOFP(io1));
2108 if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]);
2109 if (IoIFP(io2)) PerlIO_close(IoIFP(io2));
2110 if (IoOFP(io2)) PerlIO_close(IoOFP(io2));
2111 if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]);
2114 #if defined(HAS_FCNTL) && defined(F_SETFD)
2115 fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */
2116 fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */
2121 DIE(aTHX_ PL_no_sock_func, "socketpair");
2129 #ifdef MPE /* Requires PRIV mode to bind() to ports < 1024 */
2130 extern GETPRIVMODE();
2131 extern GETUSERMODE();
2136 register IO *io = GvIOn(gv);
2140 int mpeprivmode = 0;
2143 if (!io || !IoIFP(io))
2146 addr = SvPV(addrsv, len);
2147 TAINT_PROPER("bind");
2148 #ifdef MPE /* Deal with MPE bind() peculiarities */
2149 if (((struct sockaddr *)addr)->sa_family == AF_INET) {
2150 /* The address *MUST* stupidly be zero. */
2151 ((struct sockaddr_in *)addr)->sin_addr.s_addr = INADDR_ANY;
2152 /* PRIV mode is required to bind() to ports < 1024. */
2153 if (((struct sockaddr_in *)addr)->sin_port < 1024 &&
2154 ((struct sockaddr_in *)addr)->sin_port > 0) {
2155 GETPRIVMODE(); /* If this fails, we are aborted by MPE/iX. */
2160 if (PerlSock_bind(PerlIO_fileno(IoIFP(io)),
2161 (struct sockaddr *)addr, len) >= 0)
2164 #ifdef MPE /* Switch back to USER mode */
2175 if (ckWARN(WARN_CLOSED))
2176 report_closed_fh(gv, io, "bind", "socket");
2177 SETERRNO(EBADF,SS$_IVCHAN);
2180 DIE(aTHX_ PL_no_sock_func, "bind");
2191 register IO *io = GvIOn(gv);
2194 if (!io || !IoIFP(io))
2197 addr = SvPV(addrsv, len);
2198 TAINT_PROPER("connect");
2199 if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0)
2205 if (ckWARN(WARN_CLOSED))
2206 report_closed_fh(gv, io, "connect", "socket");
2207 SETERRNO(EBADF,SS$_IVCHAN);
2210 DIE(aTHX_ PL_no_sock_func, "connect");
2220 register IO *io = GvIOn(gv);
2222 if (!io || !IoIFP(io))
2225 if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0)
2231 if (ckWARN(WARN_CLOSED))
2232 report_closed_fh(gv, io, "listen", "socket");
2233 SETERRNO(EBADF,SS$_IVCHAN);
2236 DIE(aTHX_ PL_no_sock_func, "listen");
2248 struct sockaddr saddr; /* use a struct to avoid alignment problems */
2249 Sock_size_t len = sizeof saddr;
2261 if (!gstio || !IoIFP(gstio))
2266 do_close(ngv, FALSE);
2268 fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *)&saddr, &len);
2271 IoIFP(nstio) = PerlIO_fdopen(fd, "r");
2272 IoOFP(nstio) = PerlIO_fdopen(fd, "w");
2273 IoTYPE(nstio) = 's';
2274 if (!IoIFP(nstio) || !IoOFP(nstio)) {
2275 if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio));
2276 if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio));
2277 if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd);
2280 #if defined(HAS_FCNTL) && defined(F_SETFD)
2281 fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */
2284 PUSHp((char *)&saddr, len);
2288 if (ckWARN(WARN_CLOSED))
2289 report_closed_fh(ggv, ggv ? GvIO(ggv) : 0, "accept", "socket");
2290 SETERRNO(EBADF,SS$_IVCHAN);
2296 DIE(aTHX_ PL_no_sock_func, "accept");
2306 register IO *io = GvIOn(gv);
2308 if (!io || !IoIFP(io))
2311 PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 );
2315 if (ckWARN(WARN_CLOSED))
2316 report_closed_fh(gv, io, "shutdown", "socket");
2317 SETERRNO(EBADF,SS$_IVCHAN);
2320 DIE(aTHX_ PL_no_sock_func, "shutdown");
2327 return pp_ssockopt();
2329 DIE(aTHX_ PL_no_sock_func, "getsockopt");
2337 int optype = PL_op->op_type;
2340 unsigned int optname;
2346 if (optype == OP_GSOCKOPT)
2347 sv = sv_2mortal(NEWSV(22, 257));
2350 optname = (unsigned int) POPi;
2351 lvl = (unsigned int) POPi;
2355 if (!io || !IoIFP(io))
2358 fd = PerlIO_fileno(IoIFP(io));
2362 (void)SvPOK_only(sv);
2366 if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0)
2381 aint = (int)SvIV(sv);
2385 if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0)
2394 if (ckWARN(WARN_CLOSED))
2395 report_closed_fh(gv, io,
2396 optype == OP_GSOCKOPT ? "getsockopt" : "setsockopt",
2398 SETERRNO(EBADF,SS$_IVCHAN);
2403 DIE(aTHX_ PL_no_sock_func, "setsockopt");
2410 return pp_getpeername();
2412 DIE(aTHX_ PL_no_sock_func, "getsockname");
2420 int optype = PL_op->op_type;
2424 register IO *io = GvIOn(gv);
2427 if (!io || !IoIFP(io))
2430 sv = sv_2mortal(NEWSV(22, 257));
2431 (void)SvPOK_only(sv);
2435 fd = PerlIO_fileno(IoIFP(io));
2437 case OP_GETSOCKNAME:
2438 if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2441 case OP_GETPEERNAME:
2442 if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0)
2444 #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS)
2446 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";
2447 /* If the call succeeded, make sure we don't have a zeroed port/addr */
2448 if (((struct sockaddr *)SvPVX(sv))->sa_family == AF_INET &&
2449 !memcmp((char *)SvPVX(sv) + sizeof(u_short), nowhere,
2450 sizeof(u_short) + sizeof(struct in_addr))) {
2457 #ifdef BOGUS_GETNAME_RETURN
2458 /* Interactive Unix, getpeername() and getsockname()
2459 does not return valid namelen */
2460 if (len == BOGUS_GETNAME_RETURN)
2461 len = sizeof(struct sockaddr);
2469 if (ckWARN(WARN_CLOSED))
2470 report_closed_fh(gv, io,
2471 optype == OP_GETSOCKNAME ? "getsockname"
2474 SETERRNO(EBADF,SS$_IVCHAN);
2479 DIE(aTHX_ PL_no_sock_func, "getpeername");
2498 if (PL_op->op_flags & OPf_REF) {
2501 if (tmpgv != PL_defgv) {
2502 PL_laststype = OP_STAT;
2504 sv_setpv(PL_statname, "");
2505 PL_laststatval = (GvIO(tmpgv) && IoIFP(GvIOp(tmpgv))
2506 ? PerlLIO_fstat(PerlIO_fileno(IoIFP(GvIOn(tmpgv))), &PL_statcache) : -1);
2508 if (PL_laststatval < 0)
2513 if (SvTYPE(sv) == SVt_PVGV) {
2517 else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVGV) {
2518 tmpgv = (GV*)SvRV(sv);
2521 sv_setpv(PL_statname, SvPV(sv,n_a));
2524 PL_laststype = PL_op->op_type;
2525 if (PL_op->op_type == OP_LSTAT)
2526 PL_laststatval = PerlLIO_lstat(SvPV(PL_statname, n_a), &PL_statcache);
2529 PL_laststatval = PerlLIO_stat(SvPV(PL_statname, n_a), &PL_statcache);
2530 if (PL_laststatval < 0) {
2531 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(PL_statname, n_a), '\n'))
2532 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "stat");
2538 if (gimme != G_ARRAY) {
2539 if (gimme != G_VOID)
2540 XPUSHs(boolSV(max));
2546 PUSHs(sv_2mortal(newSViv(PL_statcache.st_dev)));
2547 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ino)));
2548 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_mode)));
2549 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_nlink)));
2550 #if Uid_t_size > IVSIZE
2551 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_uid)));
2553 # if Uid_t_sign <= 0
2554 PUSHs(sv_2mortal(newSViv(PL_statcache.st_uid)));
2556 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_uid)));
2559 #if Gid_t_size > IVSIZE
2560 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_gid)));
2562 # if Gid_t_sign <= 0
2563 PUSHs(sv_2mortal(newSViv(PL_statcache.st_gid)));
2565 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_gid)));
2568 #ifdef USE_STAT_RDEV
2569 PUSHs(sv_2mortal(newSViv(PL_statcache.st_rdev)));
2571 PUSHs(sv_2mortal(newSVpvn("", 0)));
2573 #if Off_t_size > IVSIZE
2574 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_size)));
2576 PUSHs(sv_2mortal(newSViv(PL_statcache.st_size)));
2579 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_atime)));
2580 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_mtime)));
2581 PUSHs(sv_2mortal(newSVnv(PL_statcache.st_ctime)));
2583 PUSHs(sv_2mortal(newSViv(PL_statcache.st_atime)));
2584 PUSHs(sv_2mortal(newSViv(PL_statcache.st_mtime)));
2585 PUSHs(sv_2mortal(newSViv(PL_statcache.st_ctime)));
2587 #ifdef USE_STAT_BLOCKS
2588 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blksize)));
2589 PUSHs(sv_2mortal(newSVuv(PL_statcache.st_blocks)));
2591 PUSHs(sv_2mortal(newSVpvn("", 0)));
2592 PUSHs(sv_2mortal(newSVpvn("", 0)));
2602 #if defined(HAS_ACCESS) && defined(R_OK)
2604 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2605 result = access(TOPpx, R_OK);
2620 if (cando(S_IRUSR, 0, &PL_statcache))
2629 #if defined(HAS_ACCESS) && defined(W_OK)
2631 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2632 result = access(TOPpx, W_OK);
2647 if (cando(S_IWUSR, 0, &PL_statcache))
2656 #if defined(HAS_ACCESS) && defined(X_OK)
2658 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2659 result = access(TOPpx, X_OK);
2674 if (cando(S_IXUSR, 0, &PL_statcache))
2683 #ifdef PERL_EFF_ACCESS_R_OK
2685 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2686 result = PERL_EFF_ACCESS_R_OK(TOPpx);
2701 if (cando(S_IRUSR, 1, &PL_statcache))
2710 #ifdef PERL_EFF_ACCESS_W_OK
2712 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2713 result = PERL_EFF_ACCESS_W_OK(TOPpx);
2728 if (cando(S_IWUSR, 1, &PL_statcache))
2737 #ifdef PERL_EFF_ACCESS_X_OK
2739 if ((PL_hints & HINT_FILETEST_ACCESS) && SvPOK(TOPs)) {
2740 result = PERL_EFF_ACCESS_X_OK(TOPpx);
2755 if (cando(S_IXUSR, 1, &PL_statcache))
2762 I32 result = my_stat();
2771 return pp_ftrowned();
2776 I32 result = my_stat();
2780 if (PL_statcache.st_uid == (PL_op->op_type == OP_FTEOWNED ?
2788 I32 result = my_stat();
2792 if (PL_statcache.st_size == 0)
2799 I32 result = my_stat();
2803 #if Off_t_size > IVSIZE
2804 PUSHn(PL_statcache.st_size);
2806 PUSHi(PL_statcache.st_size);
2813 I32 result = my_stat();
2817 PUSHn( (PL_basetime - PL_statcache.st_mtime) / 86400.0 );
2823 I32 result = my_stat();
2827 PUSHn( (PL_basetime - PL_statcache.st_atime) / 86400.0 );
2833 I32 result = my_stat();
2837 PUSHn( (PL_basetime - PL_statcache.st_ctime) / 86400.0 );
2843 I32 result = my_stat();
2847 if (S_ISSOCK(PL_statcache.st_mode))
2854 I32 result = my_stat();
2858 if (S_ISCHR(PL_statcache.st_mode))
2865 I32 result = my_stat();
2869 if (S_ISBLK(PL_statcache.st_mode))
2876 I32 result = my_stat();
2880 if (S_ISREG(PL_statcache.st_mode))
2887 I32 result = my_stat();
2891 if (S_ISDIR(PL_statcache.st_mode))
2898 I32 result = my_stat();
2902 if (S_ISFIFO(PL_statcache.st_mode))
2909 I32 result = my_lstat();
2913 if (S_ISLNK(PL_statcache.st_mode))
2922 I32 result = my_stat();
2926 if (PL_statcache.st_mode & S_ISUID)
2936 I32 result = my_stat();
2940 if (PL_statcache.st_mode & S_ISGID)
2950 I32 result = my_stat();
2954 if (PL_statcache.st_mode & S_ISVTX)
2965 char *tmps = Nullch;
2968 if (PL_op->op_flags & OPf_REF)
2970 else if (isGV(TOPs))
2972 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
2973 gv = (GV*)SvRV(POPs);
2975 gv = gv_fetchpv(tmps = POPpx, FALSE, SVt_PVIO);
2977 if (GvIO(gv) && IoIFP(GvIOp(gv)))
2978 fd = PerlIO_fileno(IoIFP(GvIOp(gv)));
2979 else if (tmps && isDIGIT(*tmps))
2983 if (PerlLIO_isatty(fd))
2988 #if defined(atarist) /* this will work with atariST. Configure will
2989 make guesses for other systems. */
2990 # define FILE_base(f) ((f)->_base)
2991 # define FILE_ptr(f) ((f)->_ptr)
2992 # define FILE_cnt(f) ((f)->_cnt)
2993 # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base))
3003 register STDCHAR *s;
3010 if (PL_op->op_flags & OPf_REF)
3012 else if (isGV(TOPs))
3014 else if (SvROK(TOPs) && isGV(SvRV(TOPs)))
3015 gv = (GV*)SvRV(POPs);
3021 if (gv == PL_defgv) {
3023 io = GvIO(PL_statgv);
3026 goto really_filename;
3031 PL_laststatval = -1;
3032 sv_setpv(PL_statname, "");
3033 io = GvIO(PL_statgv);
3035 if (io && IoIFP(io)) {
3036 if (! PerlIO_has_base(IoIFP(io)))
3037 DIE(aTHX_ "-T and -B not implemented on filehandles");
3038 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache);
3039 if (PL_laststatval < 0)
3041 if (S_ISDIR(PL_statcache.st_mode)) /* handle NFS glitch */
3042 if (PL_op->op_type == OP_FTTEXT)
3046 if (PerlIO_get_cnt(IoIFP(io)) <= 0) {
3047 i = PerlIO_getc(IoIFP(io));
3049 (void)PerlIO_ungetc(IoIFP(io),i);
3051 if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */
3053 len = PerlIO_get_bufsiz(IoIFP(io));
3054 s = (STDCHAR *) PerlIO_get_base(IoIFP(io));
3055 /* sfio can have large buffers - limit to 512 */
3060 if (ckWARN(WARN_UNOPENED)) {
3062 Perl_warner(aTHX_ WARN_UNOPENED, "Test on unopened file %s",
3065 SETERRNO(EBADF,RMS$_IFI);
3073 PL_laststatval = -1;
3074 sv_setpv(PL_statname, SvPV(sv, n_a));
3075 if (!(fp = PerlIO_open(SvPVX(PL_statname), "r"))) {
3076 if (ckWARN(WARN_NEWLINE) && strchr(SvPV(sv, n_a), '\n'))
3077 Perl_warner(aTHX_ WARN_NEWLINE, PL_warn_nl, "open");
3080 PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache);
3081 if (PL_laststatval < 0) {
3082 (void)PerlIO_close(fp);
3085 do_binmode(fp, '<', O_BINARY);
3086 len = PerlIO_read(fp, tbuf, sizeof(tbuf));
3087 (void)PerlIO_close(fp);
3089 if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT)
3090 RETPUSHNO; /* special case NFS directories */
3091 RETPUSHYES; /* null file is anything */
3096 /* now scan s to look for textiness */
3097 /* XXX ASCII dependent code */
3099 #if defined(DOSISH) || defined(USEMYBINMODE)
3100 /* ignore trailing ^Z on short files */
3101 if (len && len < sizeof(tbuf) && tbuf[len-1] == 26)
3105 for (i = 0; i < len; i++, s++) {
3106 if (!*s) { /* null never allowed in text */
3111 else if (!(isPRINT(*s) || isSPACE(*s)))
3114 else if (*s & 128) {
3116 if ((PL_op->op_private & OPpLOCALE) && isALPHA_LC(*s))
3119 /* utf8 characters don't count as odd */
3121 int ulen = UTF8SKIP(s);
3122 if (ulen < len - i) {
3124 for (j = 1; j < ulen; j++) {
3125 if ((s[j] & 0xc0) != 0x80)
3128 --ulen; /* loop does extra increment */
3138 *s != '\n' && *s != '\r' && *s != '\b' &&
3139 *s != '\t' && *s != '\f' && *s != 27)
3144 if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */
3168 if (!tmps || !*tmps) {
3169 svp = hv_fetch(GvHVn(PL_envgv), "HOME", 4, FALSE);
3171 tmps = SvPV(*svp, n_a);
3173 if (!tmps || !*tmps) {
3174 svp = hv_fetch(GvHVn(PL_envgv), "LOGDIR", 6, FALSE);
3176 tmps = SvPV(*svp, n_a);
3179 if (!tmps || !*tmps) {
3180 svp = hv_fetch(GvHVn(PL_envgv), "SYS$LOGIN", 9, FALSE);
3182 tmps = SvPV(*svp, n_a);
3185 TAINT_PROPER("chdir");
3186 PUSHi( PerlDir_chdir(tmps) >= 0 );
3188 /* Clear the DEFAULT element of ENV so we'll get the new value
3190 hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD);
3197 djSP; dMARK; dTARGET;
3200 value = (I32)apply(PL_op->op_type, MARK, SP);
3205 DIE(aTHX_ PL_no_func, "Unsupported function chown");
3216 TAINT_PROPER("chroot");
3217 PUSHi( chroot(tmps) >= 0 );
3220 DIE(aTHX_ PL_no_func, "chroot");
3226 djSP; dMARK; dTARGET;
3228 value = (I32)apply(PL_op->op_type, MARK, SP);
3236 djSP; dMARK; dTARGET;
3238 value = (I32)apply(PL_op->op_type, MARK, SP);
3246 djSP; dMARK; dTARGET;
3248 value = (I32)apply(PL_op->op_type, MARK, SP);
3260 char *tmps2 = POPpx;
3261 char *tmps = SvPV(TOPs, n_a);
3262 TAINT_PROPER("rename");
3264 anum = PerlLIO_rename(tmps, tmps2);
3266 if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) {
3267 if (same_dirent(tmps2, tmps)) /* can always rename to same name */
3270 if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode))
3271 (void)UNLINK(tmps2);
3272 if (!(anum = link(tmps, tmps2)))
3273 anum = UNLINK(tmps);
3286 char *tmps2 = POPpx;
3287 char *tmps = SvPV(TOPs, n_a);
3288 TAINT_PROPER("link");
3289 SETi( PerlLIO_link(tmps, tmps2) >= 0 );
3291 DIE(aTHX_ PL_no_func, "Unsupported function link");
3301 char *tmps2 = POPpx;
3302 char *tmps = SvPV(TOPs, n_a);
3303 TAINT_PROPER("symlink");
3304 SETi( symlink(tmps, tmps2) >= 0 );
3307 DIE(aTHX_ PL_no_func, "symlink");
3316 char buf[MAXPATHLEN];
3320 #ifndef INCOMPLETE_TAINTS
3324 len = readlink(tmps, buf, sizeof buf);
3332 RETSETUNDEF; /* just pretend it's a normal file */
3336 #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR)
3338 S_dooneliner(pTHX_ char *cmd, char *filename)
3340 char *save_filename = filename;
3346 New(666, cmdline, strlen(cmd) + (strlen(filename) * 2) + 10, char);
3347 strcpy(cmdline, cmd);
3348 strcat(cmdline, " ");
3349 for (s = cmdline + strlen(cmdline); *filename; ) {
3354 myfp = PerlProc_popen(cmdline, "r");
3358 SV *tmpsv = sv_newmortal();
3359 /* Need to save/restore 'PL_rs' ?? */
3360 s = sv_gets(tmpsv, myfp, 0);
3361 (void)PerlProc_pclose(myfp);
3365 #ifdef HAS_SYS_ERRLIST
3370 /* you don't see this */
3372 #ifdef HAS_SYS_ERRLIST
3380 if (instr(s, errmsg)) {
3387 #define EACCES EPERM
3389 if (instr(s, "cannot make"))
3390 SETERRNO(EEXIST,RMS$_FEX);
3391 else if (instr(s, "existing file"))
3392 SETERRNO(EEXIST,RMS$_FEX);
3393 else if (instr(s, "ile exists"))
3394 SETERRNO(EEXIST,RMS$_FEX);
3395 else if (instr(s, "non-exist"))
3396 SETERRNO(ENOENT,RMS$_FNF);
3397 else if (instr(s, "does not exist"))
3398 SETERRNO(ENOENT,RMS$_FNF);
3399 else if (instr(s, "not empty"))
3400 SETERRNO(EBUSY,SS$_DEVOFFLINE);
3401 else if (instr(s, "cannot access"))
3402 SETERRNO(EACCES,RMS$_PRV);
3404 SETERRNO(EPERM,RMS$_PRV);
3407 else { /* some mkdirs return no failure indication */
3408 anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0);
3409 if (PL_op->op_type == OP_RMDIR)
3414 SETERRNO(EACCES,RMS$_PRV); /* a guess */
3438 tmps = SvPV(TOPs, n_a);
3440 TAINT_PROPER("mkdir");
3442 SETi( PerlDir_mkdir(tmps, mode) >= 0 );
3444 SETi( dooneliner("mkdir", tmps) );
3445 oldumask = PerlLIO_umask(0);
3446 PerlLIO_umask(oldumask);
3447 PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777);
3459 TAINT_PROPER("rmdir");
3461 XPUSHi( PerlDir_rmdir(tmps) >= 0 );
3463 XPUSHi( dooneliner("rmdir", tmps) );
3468 /* Directory calls. */
3473 #if defined(Direntry_t) && defined(HAS_READDIR)
3475 char *dirname = POPpx;
3477 register IO *io = GvIOn(gv);
3483 PerlDir_close(IoDIRP(io));
3484 if (!(IoDIRP(io) = PerlDir_open(dirname)))
3490 SETERRNO(EBADF,RMS$_DIR);
3493 DIE(aTHX_ PL_no_dir_func, "opendir");
3500 #if defined(Direntry_t) && defined(HAS_READDIR)
3502 Direntry_t *readdir (DIR *);
3504 register Direntry_t *dp;
3506 register IO *io = GvIOn(gv);
3509 if (!io || !IoDIRP(io))
3512 if (GIMME == G_ARRAY) {
3514 while ((dp = (Direntry_t *)PerlDir_read(IoDIRP(io)))) {
3516 sv = newSVpvn(dp->d_name, dp->d_namlen);
3518 sv = newSVpv(dp->d_name, 0);
3520 #ifndef INCOMPLETE_TAINTS
3521 if (!(IoFLAGS(io) & IOf_UNTAINT))
3524 XPUSHs(sv_2mortal(sv));
3528 if (!(dp = (Direntry_t *)PerlDir_read(IoDIRP(io))))
3531 sv = newSVpvn(dp->d_name, dp->d_namlen);
3533 sv = newSVpv(dp->d_name, 0);
3535 #ifndef INCOMPLETE_TAINTS
3536 if (!(IoFLAGS(io) & IOf_UNTAINT))
3539 XPUSHs(sv_2mortal(sv));
3545 SETERRNO(EBADF,RMS$_ISI);
3546 if (GIMME == G_ARRAY)
3551 DIE(aTHX_ PL_no_dir_func, "readdir");
3558 #if defined(HAS_TELLDIR) || defined(telldir)
3559 /* XXX does _anyone_ need this? --AD 2/20/1998 */
3560 /* XXX netbsd still seemed to.
3561 XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style.
3562 --JHI 1999-Feb-02 */
3563 # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO)
3564 long telldir (DIR *);
3567 register IO *io = GvIOn(gv);
3569 if (!io || !IoDIRP(io))
3572 PUSHi( PerlDir_tell(IoDIRP(io)) );
3576 SETERRNO(EBADF,RMS$_ISI);
3579 DIE(aTHX_ PL_no_dir_func, "telldir");
3586 #if defined(HAS_SEEKDIR) || defined(seekdir)
3589 register IO *io = GvIOn(gv);
3591 if (!io || !IoDIRP(io))
3594 (void)PerlDir_seek(IoDIRP(io), along);
3599 SETERRNO(EBADF,RMS$_ISI);
3602 DIE(aTHX_ PL_no_dir_func, "seekdir");
3609 #if defined(HAS_REWINDDIR) || defined(rewinddir)
3611 register IO *io = GvIOn(gv);
3613 if (!io || !IoDIRP(io))
3616 (void)PerlDir_rewind(IoDIRP(io));
3620 SETERRNO(EBADF,RMS$_ISI);
3623 DIE(aTHX_ PL_no_dir_func, "rewinddir");
3630 #if defined(Direntry_t) && defined(HAS_READDIR)
3632 register IO *io = GvIOn(gv);
3634 if (!io || !IoDIRP(io))
3637 #ifdef VOID_CLOSEDIR
3638 PerlDir_close(IoDIRP(io));
3640 if (PerlDir_close(IoDIRP(io)) < 0) {
3641 IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */
3650 SETERRNO(EBADF,RMS$_IFI);
3653 DIE(aTHX_ PL_no_dir_func, "closedir");
3657 /* Process control. */
3667 PERL_FLUSHALL_FOR_CHILD;
3673 if ((tmpgv = gv_fetchpv("$", TRUE, SVt_PV)))
3674 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3675 hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */
3680 # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3685 PERL_FLUSHALL_FOR_CHILD;
3686 childpid = PerlProc_fork();
3692 DIE(aTHX_ PL_no_func, "Unsupported function fork");
3699 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3704 childpid = wait4pid(-1, &argflags, 0);
3705 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3709 DIE(aTHX_ PL_no_func, "Unsupported function wait");
3715 #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(MACOS_TRADITIONAL)
3723 childpid = wait4pid(childpid, &argflags, optype);
3724 STATUS_NATIVE_SET((childpid > 0) ? argflags : -1);
3728 DIE(aTHX_ PL_no_func, "Unsupported function waitpid");
3734 djSP; dMARK; dORIGMARK; dTARGET;
3739 Sigsave_t ihand,qhand; /* place to save signals during system() */
3744 if (SP - MARK == 1) {
3746 char *junk = SvPV(TOPs, n_a);
3748 TAINT_PROPER("system");
3751 PERL_FLUSHALL_FOR_CHILD;
3752 #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) && !defined(__CYGWIN__) || defined(PERL_MICRO)
3753 if (PerlProc_pipe(pp) >= 0)
3755 while ((childpid = vfork()) == -1) {
3756 if (errno != EAGAIN) {
3761 PerlLIO_close(pp[0]);
3762 PerlLIO_close(pp[1]);
3770 PerlLIO_close(pp[1]);
3772 rsignal_save(SIGINT, SIG_IGN, &ihand);
3773 rsignal_save(SIGQUIT, SIG_IGN, &qhand);
3776 result = wait4pid(childpid, &status, 0);
3777 } while (result == -1 && errno == EINTR);
3779 (void)rsignal_restore(SIGINT, &ihand);
3780 (void)rsignal_restore(SIGQUIT, &qhand);
3782 STATUS_NATIVE_SET(result == -1 ? -1 : status);
3783 do_execfree(); /* free any memory child malloced on vfork */
3789 while (n < sizeof(int)) {
3790 n1 = PerlLIO_read(pp[0],
3791 (void*)(((char*)&errkid)+n),
3797 PerlLIO_close(pp[0]);
3798 if (n) { /* Error */
3799 if (n != sizeof(int))
3800 DIE(aTHX_ "panic: kid popen errno read");
3801 errno = errkid; /* Propagate errno from kid */
3802 STATUS_CURRENT = -1;
3805 PUSHi(STATUS_CURRENT);
3809 PerlLIO_close(pp[0]);
3810 #if defined(HAS_FCNTL) && defined(F_SETFD)
3811 fcntl(pp[1], F_SETFD, FD_CLOEXEC);
3814 if (PL_op->op_flags & OPf_STACKED) {
3815 SV *really = *++MARK;
3816 value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes);
3818 else if (SP - MARK != 1)
3819 value = (I32)do_aexec5(Nullsv, MARK, SP, pp[1], did_pipes);
3821 value = (I32)do_exec3(SvPVx(sv_mortalcopy(*SP), n_a), pp[1], did_pipes);
3824 #else /* ! FORK or VMS or OS/2 */
3825 if (PL_op->op_flags & OPf_STACKED) {
3826 SV *really = *++MARK;
3827 value = (I32)do_aspawn(really, (void **)MARK, (void **)SP);
3829 else if (SP - MARK != 1)
3830 value = (I32)do_aspawn(Nullsv, (void **)MARK, (void **)SP);
3832 value = (I32)do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3834 STATUS_NATIVE_SET(value);
3837 PUSHi(STATUS_CURRENT);
3838 #endif /* !FORK or VMS */
3844 djSP; dMARK; dORIGMARK; dTARGET;
3848 PERL_FLUSHALL_FOR_CHILD;
3849 if (PL_op->op_flags & OPf_STACKED) {
3850 SV *really = *++MARK;
3851 value = (I32)do_aexec(really, MARK, SP);
3853 else if (SP - MARK != 1)
3855 value = (I32)vms_do_aexec(Nullsv, MARK, SP);
3859 (void ) do_aspawn(Nullsv, MARK, SP);
3863 value = (I32)do_aexec(Nullsv, MARK, SP);
3868 char *junk = SvPV(*SP, n_a);
3870 TAINT_PROPER("exec");
3873 value = (I32)vms_do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3876 (void) do_spawn(SvPVx(sv_mortalcopy(*SP), n_a));
3879 value = (I32)do_exec(SvPVx(sv_mortalcopy(*SP), n_a));
3884 #if !defined(HAS_FORK) && defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS)
3896 djSP; dMARK; dTARGET;
3899 value = (I32)apply(PL_op->op_type, MARK, SP);
3904 DIE(aTHX_ PL_no_func, "Unsupported function kill");
3912 XPUSHi( getppid() );
3915 DIE(aTHX_ PL_no_func, "getppid");
3931 pgrp = (I32)BSD_GETPGRP(pid);
3933 if (pid != 0 && pid != PerlProc_getpid())
3934 DIE(aTHX_ "POSIX getpgrp can't take an argument");
3940 DIE(aTHX_ PL_no_func, "getpgrp()");
3959 TAINT_PROPER("setpgrp");
3961 SETi( BSD_SETPGRP(pid, pgrp) >= 0 );
3963 if ((pgrp != 0 && pgrp != PerlProc_getpid())
3964 || (pid != 0 && pid != PerlProc_getpid()))
3966 DIE(aTHX_ "setpgrp can't take arguments");
3968 SETi( setpgrp() >= 0 );
3969 #endif /* USE_BSDPGRP */
3972 DIE(aTHX_ PL_no_func, "setpgrp()");
3981 #ifdef HAS_GETPRIORITY
3984 SETi( getpriority(which, who) );
3987 DIE(aTHX_ PL_no_func, "getpriority()");
3997 #ifdef HAS_SETPRIORITY
4001 TAINT_PROPER("setpriority");
4002 SETi( setpriority(which, who, niceval) >= 0 );
4005 DIE(aTHX_ PL_no_func, "setpriority()");
4015 XPUSHn( time(Null(Time_t*)) );
4017 XPUSHi( time(Null(Time_t*)) );
4022 /* XXX The POSIX name is CLK_TCK; it is to be preferred
4023 to HZ. Probably. For now, assume that if the system
4024 defines HZ, it does so correctly. (Will this break
4026 Probably we ought to use _sysconf(_SC_CLK_TCK), if
4027 it's supported. --AD 9/96.
4043 DIE(aTHX_ "times not implemented");
4048 (void)PerlProc_times(&PL_timesbuf);
4050 (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */
4051 /* struct tms, though same data */
4055 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_utime)/HZ)));
4056 if (GIMME == G_ARRAY) {
4057 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_stime)/HZ)));
4058 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cutime)/HZ)));
4059 PUSHs(sv_2mortal(newSVnv(((NV)PL_timesbuf.tms_cstime)/HZ)));
4062 #endif /* HAS_TIMES */
4075 static char *dayname[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
4076 static char *monname[] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
4077 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
4083 when = (Time_t)SvNVx(POPs);
4085 when = (Time_t)SvIVx(POPs);
4088 if (PL_op->op_type == OP_LOCALTIME)
4089 tmbuf = localtime(&when);
4091 tmbuf = gmtime(&when);
4095 if (GIMME != G_ARRAY) {
4099 tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %d",
4100 dayname[tmbuf->tm_wday],
4101 monname[tmbuf->tm_mon],
4106 tmbuf->tm_year + 1900);
4107 PUSHs(sv_2mortal(tsv));
4110 PUSHs(sv_2mortal(newSViv(tmbuf->tm_sec)));
4111 PUSHs(sv_2mortal(newSViv(tmbuf->tm_min)));
4112 PUSHs(sv_2mortal(newSViv(tmbuf->tm_hour)));
4113 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mday)));
4114 PUSHs(sv_2mortal(newSViv(tmbuf->tm_mon)));
4115 PUSHs(sv_2mortal(newSViv(tmbuf->tm_year)));
4116 PUSHs(sv_2mortal(newSViv(tmbuf->tm_wday)));
4117 PUSHs(sv_2mortal(newSViv(tmbuf->tm_yday)));
4118 PUSHs(sv_2mortal(newSViv(tmbuf->tm_isdst)));
4129 anum = alarm((unsigned int)anum);
4136 DIE(aTHX_ PL_no_func, "Unsupported function alarm");
4147 (void)time(&lasttime);
4152 PerlProc_sleep((unsigned int)duration);
4155 XPUSHi(when - lasttime);
4159 /* Shared memory. */
4173 return pp_shmwrite();
4178 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4179 djSP; dMARK; dTARGET;
4180 I32 value = (I32)(do_shmio(PL_op->op_type, MARK, SP) >= 0);
4189 /* Message passing. */
4203 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4204 djSP; dMARK; dTARGET;
4205 I32 value = (I32)(do_msgsnd(MARK, SP) >= 0);
4216 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4217 djSP; dMARK; dTARGET;
4218 I32 value = (I32)(do_msgrcv(MARK, SP) >= 0);
4231 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4232 djSP; dMARK; dTARGET;
4233 int anum = do_ipcget(PL_op->op_type, MARK, SP);
4240 DIE(aTHX_ "System V IPC is not implemented on this machine");
4246 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4247 djSP; dMARK; dTARGET;
4248 int anum = do_ipcctl(PL_op->op_type, MARK, SP);
4256 PUSHp(zero_but_true, ZBTLEN);
4266 #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM)
4267 djSP; dMARK; dTARGET;
4268 I32 value = (I32)(do_semop(MARK, SP) >= 0);
4277 /* Get system info. */
4281 #ifdef HAS_GETHOSTBYNAME
4282 return pp_ghostent();
4284 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4290 #ifdef HAS_GETHOSTBYADDR
4291 return pp_ghostent();
4293 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4300 #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT)
4301 I32 which = PL_op->op_type;
4302 register char **elem;
4304 #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */
4305 struct hostent *PerlSock_gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int);
4306 struct hostent *PerlSock_gethostbyname(Netdb_name_t);
4307 struct hostent *PerlSock_gethostent(void);
4309 struct hostent *hent;
4314 if (which == OP_GHBYNAME)
4315 #ifdef HAS_GETHOSTBYNAME
4316 hent = PerlSock_gethostbyname(POPpx);
4318 DIE(aTHX_ PL_no_sock_func, "gethostbyname");
4320 else if (which == OP_GHBYADDR) {
4321 #ifdef HAS_GETHOSTBYADDR
4322 int addrtype = POPi;
4325 Netdb_host_t addr = (Netdb_host_t) SvPV(addrsv, addrlen);
4327 hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype);
4329 DIE(aTHX_ PL_no_sock_func, "gethostbyaddr");
4333 #ifdef HAS_GETHOSTENT
4334 hent = PerlSock_gethostent();
4336 DIE(aTHX_ PL_no_sock_func, "gethostent");
4339 #ifdef HOST_NOT_FOUND
4341 STATUS_NATIVE_SET(h_errno);
4344 if (GIMME != G_ARRAY) {
4345 PUSHs(sv = sv_newmortal());
4347 if (which == OP_GHBYNAME) {
4349 sv_setpvn(sv, hent->h_addr, hent->h_length);
4352 sv_setpv(sv, (char*)hent->h_name);
4358 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4359 sv_setpv(sv, (char*)hent->h_name);
4360 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4361 for (elem = hent->h_aliases; elem && *elem; elem++) {
4362 sv_catpv(sv, *elem);
4364 sv_catpvn(sv, " ", 1);
4366 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4367 sv_setiv(sv, (IV)hent->h_addrtype);
4368 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4369 len = hent->h_length;
4370 sv_setiv(sv, (IV)len);
4372 for (elem = hent->h_addr_list; elem && *elem; elem++) {
4373 XPUSHs(sv = sv_mortalcopy(&PL_sv_no));
4374 sv_setpvn(sv, *elem, len);
4377 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4379 sv_setpvn(sv, hent->h_addr, len);
4384 DIE(aTHX_ PL_no_sock_func, "gethostent");
4390 #ifdef HAS_GETNETBYNAME
4391 return pp_gnetent();
4393 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4399 #ifdef HAS_GETNETBYADDR
4400 return pp_gnetent();
4402 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4409 #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT)
4410 I32 which = PL_op->op_type;
4411 register char **elem;
4413 #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */
4414 struct netent *PerlSock_getnetbyaddr(Netdb_net_t, int);
4415 struct netent *PerlSock_getnetbyname(Netdb_name_t);
4416 struct netent *PerlSock_getnetent(void);
4418 struct netent *nent;
4421 if (which == OP_GNBYNAME)
4422 #ifdef HAS_GETNETBYNAME
4423 nent = PerlSock_getnetbyname(POPpx);
4425 DIE(aTHX_ PL_no_sock_func, "getnetbyname");
4427 else if (which == OP_GNBYADDR) {
4428 #ifdef HAS_GETNETBYADDR
4429 int addrtype = POPi;
4430 Netdb_net_t addr = (Netdb_net_t) U_L(POPn);
4431 nent = PerlSock_getnetbyaddr(addr, addrtype);
4433 DIE(aTHX_ PL_no_sock_func, "getnetbyaddr");
4437 #ifdef HAS_GETNETENT
4438 nent = PerlSock_getnetent();
4440 DIE(aTHX_ PL_no_sock_func, "getnetent");
4444 if (GIMME != G_ARRAY) {
4445 PUSHs(sv = sv_newmortal());
4447 if (which == OP_GNBYNAME)
4448 sv_setiv(sv, (IV)nent->n_net);
4450 sv_setpv(sv, nent->n_name);
4456 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4457 sv_setpv(sv, nent->n_name);
4458 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4459 for (elem = nent->n_aliases; elem && *elem; elem++) {
4460 sv_catpv(sv, *elem);
4462 sv_catpvn(sv, " ", 1);
4464 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4465 sv_setiv(sv, (IV)nent->n_addrtype);
4466 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4467 sv_setiv(sv, (IV)nent->n_net);
4472 DIE(aTHX_ PL_no_sock_func, "getnetent");
4478 #ifdef HAS_GETPROTOBYNAME
4479 return pp_gprotoent();
4481 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4487 #ifdef HAS_GETPROTOBYNUMBER
4488 return pp_gprotoent();
4490 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4497 #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT)
4498 I32 which = PL_op->op_type;
4499 register char **elem;
4501 #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */
4502 struct protoent *PerlSock_getprotobyname(Netdb_name_t);
4503 struct protoent *PerlSock_getprotobynumber(int);
4504 struct protoent *PerlSock_getprotoent(void);
4506 struct protoent *pent;
4509 if (which == OP_GPBYNAME)
4510 #ifdef HAS_GETPROTOBYNAME
4511 pent = PerlSock_getprotobyname(POPpx);
4513 DIE(aTHX_ PL_no_sock_func, "getprotobyname");
4515 else if (which == OP_GPBYNUMBER)
4516 #ifdef HAS_GETPROTOBYNUMBER
4517 pent = PerlSock_getprotobynumber(POPi);
4519 DIE(aTHX_ PL_no_sock_func, "getprotobynumber");
4522 #ifdef HAS_GETPROTOENT
4523 pent = PerlSock_getprotoent();
4525 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4529 if (GIMME != G_ARRAY) {
4530 PUSHs(sv = sv_newmortal());
4532 if (which == OP_GPBYNAME)
4533 sv_setiv(sv, (IV)pent->p_proto);
4535 sv_setpv(sv, pent->p_name);
4541 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4542 sv_setpv(sv, pent->p_name);
4543 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4544 for (elem = pent->p_aliases; elem && *elem; elem++) {
4545 sv_catpv(sv, *elem);
4547 sv_catpvn(sv, " ", 1);
4549 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4550 sv_setiv(sv, (IV)pent->p_proto);
4555 DIE(aTHX_ PL_no_sock_func, "getprotoent");
4561 #ifdef HAS_GETSERVBYNAME
4562 return pp_gservent();
4564 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4570 #ifdef HAS_GETSERVBYPORT
4571 return pp_gservent();
4573 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4580 #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT)
4581 I32 which = PL_op->op_type;
4582 register char **elem;
4584 #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */
4585 struct servent *PerlSock_getservbyname(Netdb_name_t, Netdb_name_t);
4586 struct servent *PerlSock_getservbyport(int, Netdb_name_t);
4587 struct servent *PerlSock_getservent(void);
4589 struct servent *sent;
4592 if (which == OP_GSBYNAME) {
4593 #ifdef HAS_GETSERVBYNAME
4594 char *proto = POPpx;
4597 if (proto && !*proto)
4600 sent = PerlSock_getservbyname(name, proto);
4602 DIE(aTHX_ PL_no_sock_func, "getservbyname");
4605 else if (which == OP_GSBYPORT) {
4606 #ifdef HAS_GETSERVBYPORT
4607 char *proto = POPpx;
4608 unsigned short port = POPu;
4611 port = PerlSock_htons(port);
4613 sent = PerlSock_getservbyport(port, proto);
4615 DIE(aTHX_ PL_no_sock_func, "getservbyport");
4619 #ifdef HAS_GETSERVENT
4620 sent = PerlSock_getservent();
4622 DIE(aTHX_ PL_no_sock_func, "getservent");
4626 if (GIMME != G_ARRAY) {
4627 PUSHs(sv = sv_newmortal());
4629 if (which == OP_GSBYNAME) {
4631 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4633 sv_setiv(sv, (IV)(sent->s_port));
4637 sv_setpv(sv, sent->s_name);
4643 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4644 sv_setpv(sv, sent->s_name);
4645 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4646 for (elem = sent->s_aliases; elem && *elem; elem++) {
4647 sv_catpv(sv, *elem);
4649 sv_catpvn(sv, " ", 1);
4651 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4653 sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port));
4655 sv_setiv(sv, (IV)(sent->s_port));
4657 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4658 sv_setpv(sv, sent->s_proto);
4663 DIE(aTHX_ PL_no_sock_func, "getservent");
4670 #ifdef HAS_SETHOSTENT
4671 PerlSock_sethostent(TOPi);
4674 DIE(aTHX_ PL_no_sock_func, "sethostent");
4681 #ifdef HAS_SETNETENT
4682 PerlSock_setnetent(TOPi);
4685 DIE(aTHX_ PL_no_sock_func, "setnetent");
4692 #ifdef HAS_SETPROTOENT
4693 PerlSock_setprotoent(TOPi);
4696 DIE(aTHX_ PL_no_sock_func, "setprotoent");
4703 #ifdef HAS_SETSERVENT
4704 PerlSock_setservent(TOPi);
4707 DIE(aTHX_ PL_no_sock_func, "setservent");
4714 #ifdef HAS_ENDHOSTENT
4715 PerlSock_endhostent();
4719 DIE(aTHX_ PL_no_sock_func, "endhostent");
4726 #ifdef HAS_ENDNETENT
4727 PerlSock_endnetent();
4731 DIE(aTHX_ PL_no_sock_func, "endnetent");
4738 #ifdef HAS_ENDPROTOENT
4739 PerlSock_endprotoent();
4743 DIE(aTHX_ PL_no_sock_func, "endprotoent");
4750 #ifdef HAS_ENDSERVENT
4751 PerlSock_endservent();
4755 DIE(aTHX_ PL_no_sock_func, "endservent");
4764 DIE(aTHX_ PL_no_func, "getpwnam");
4773 DIE(aTHX_ PL_no_func, "getpwuid");
4781 I32 which = PL_op->op_type;
4784 struct passwd *pwent = NULL;
4786 * We currently support only the SysV getsp* shadow password interface.
4787 * The interface is declared in <shadow.h> and often one needs to link
4788 * with -lsecurity or some such.
4789 * This interface is used at least by Solaris, HP-UX, IRIX, and Linux.
4792 * AIX getpwnam() is clever enough to return the encrypted password
4793 * only if the caller (euid?) is root.
4795 * There are at least two other shadow password APIs. Many platforms
4796 * seem to contain more than one interface for accessing the shadow
4797 * password databases, possibly for compatibility reasons.
4798 * The getsp*() is by far he simplest one, the other two interfaces
4799 * are much more complicated, but also very similar to each other.
4804 * struct pr_passwd *getprpw*();
4805 * The password is in
4806 * char getprpw*(...).ufld.fd_encrypt[]
4807 * Mention HAS_GETPRPWNAM here so that Configure probes for it.
4812 * struct es_passwd *getespw*();
4813 * The password is in
4814 * char *(getespw*(...).ufld.fd_encrypt)
4815 * Mention HAS_GETESPWNAM here so that Configure probes for it.
4817 * Mention I_PROT here so that Configure probes for it.
4819 * In HP-UX for getprpw*() the manual page claims that one should include
4820 * <hpsecurity.h> instead of <sys/security.h>, but that is not needed
4821 * if one includes <shadow.h> as that includes <hpsecurity.h>,
4822 * and pp_sys.c already includes <shadow.h> if there is such.
4824 * Note that <sys/security.h> is already probed for, but currently
4825 * it is only included in special cases.
4827 * In Digital UNIX/Tru64 if using the getespw*() (which seems to be
4828 * be preferred interface, even though also the getprpw*() interface
4829 * is available) one needs to link with -lsecurity -ldb -laud -lm.
4830 * One also needs to call set_auth_parameters() in main() before
4831 * doing anything else, whether one is using getespw*() or getprpw*().
4833 * Note that accessing the shadow databases can be magnitudes
4834 * slower than accessing the standard databases.
4841 pwent = getpwnam(POPpx);
4844 pwent = getpwuid((Uid_t)POPi);
4847 # ifdef HAS_GETPWENT
4850 DIE(aTHX_ PL_no_func, "getpwent");
4856 if (GIMME != G_ARRAY) {
4857 PUSHs(sv = sv_newmortal());
4859 if (which == OP_GPWNAM)
4860 # if Uid_t_sign <= 0
4861 sv_setiv(sv, (IV)pwent->pw_uid);
4863 sv_setuv(sv, (UV)pwent->pw_uid);
4866 sv_setpv(sv, pwent->pw_name);
4872 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4873 sv_setpv(sv, pwent->pw_name);
4875 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4877 /* If we have getspnam(), we try to dig up the shadow
4878 * password. If we are underprivileged, the shadow
4879 * interface will set the errno to EACCES or similar,
4880 * and return a null pointer. If this happens, we will
4881 * use the dummy password (usually "*" or "x") from the
4882 * standard password database.
4884 * In theory we could skip the shadow call completely
4885 * if euid != 0 but in practice we cannot know which
4886 * security measures are guarding the shadow databases
4887 * on a random platform.
4889 * Resist the urge to use additional shadow interfaces.
4890 * Divert the urge to writing an extension instead.
4893 # ifdef HAS_GETSPNAM
4895 struct spwd *spwent;
4896 int saverrno; /* Save and restore errno so that
4897 * underprivileged attempts seem
4898 * to have never made the unsccessful
4899 * attempt to retrieve the shadow password. */
4902 spwent = getspnam(pwent->pw_name);
4904 if (spwent && spwent->sp_pwdp)
4905 sv_setpv(sv, spwent->sp_pwdp);
4908 if (!SvPOK(sv)) /* Use the standard password, then. */
4909 sv_setpv(sv, pwent->pw_passwd);
4911 # ifndef INCOMPLETE_TAINTS
4912 /* passwd is tainted because user himself can diddle with it.
4913 * admittedly not much and in a very limited way, but nevertheless. */
4917 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4918 # if Uid_t_sign <= 0
4919 sv_setiv(sv, (IV)pwent->pw_uid);
4921 sv_setuv(sv, (UV)pwent->pw_uid);
4924 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4925 # if Uid_t_sign <= 0
4926 sv_setiv(sv, (IV)pwent->pw_gid);
4928 sv_setuv(sv, (UV)pwent->pw_gid);
4930 /* pw_change, pw_quota, and pw_age are mutually exclusive--
4931 * because of the poor interface of the Perl getpw*(),
4932 * not because there's some standard/convention saying so.
4933 * A better interface would have been to return a hash,
4934 * but we are accursed by our history, alas. --jhi. */
4935 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4937 sv_setiv(sv, (IV)pwent->pw_change);
4940 sv_setiv(sv, (IV)pwent->pw_quota);
4943 sv_setpv(sv, pwent->pw_age);
4948 /* pw_class and pw_comment are mutually exclusive--.
4949 * see the above note for pw_change, pw_quota, and pw_age. */
4950 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4952 sv_setpv(sv, pwent->pw_class);
4955 sv_setpv(sv, pwent->pw_comment);
4959 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4961 sv_setpv(sv, pwent->pw_gecos);
4963 # ifndef INCOMPLETE_TAINTS
4964 /* pw_gecos is tainted because user himself can diddle with it. */
4968 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4969 sv_setpv(sv, pwent->pw_dir);
4971 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4972 sv_setpv(sv, pwent->pw_shell);
4973 # ifndef INCOMPLETE_TAINTS
4974 /* pw_shell is tainted because user himself can diddle with it. */
4979 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
4980 sv_setiv(sv, (IV)pwent->pw_expire);
4985 DIE(aTHX_ PL_no_func, "getpwent");
4992 #if defined(HAS_PASSWD) && defined(HAS_SETPWENT)
4996 DIE(aTHX_ PL_no_func, "setpwent");
5003 #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT)
5007 DIE(aTHX_ PL_no_func, "endpwent");
5016 DIE(aTHX_ PL_no_func, "getgrnam");
5025 DIE(aTHX_ PL_no_func, "getgrgid");
5033 I32 which = PL_op->op_type;
5034 register char **elem;
5036 struct group *grent;
5039 if (which == OP_GGRNAM)
5040 grent = (struct group *)getgrnam(POPpx);
5041 else if (which == OP_GGRGID)
5042 grent = (struct group *)getgrgid(POPi);
5045 grent = (struct group *)getgrent();
5047 DIE(aTHX_ PL_no_func, "getgrent");
5051 if (GIMME != G_ARRAY) {
5052 PUSHs(sv = sv_newmortal());
5054 if (which == OP_GGRNAM)
5055 sv_setiv(sv, (IV)grent->gr_gid);
5057 sv_setpv(sv, grent->gr_name);
5063 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5064 sv_setpv(sv, grent->gr_name);
5066 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5068 sv_setpv(sv, grent->gr_passwd);
5071 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5072 sv_setiv(sv, (IV)grent->gr_gid);
5074 PUSHs(sv = sv_mortalcopy(&PL_sv_no));
5075 for (elem = grent->gr_mem; elem && *elem; elem++) {
5076 sv_catpv(sv, *elem);
5078 sv_catpvn(sv, " ", 1);
5084 DIE(aTHX_ PL_no_func, "getgrent");
5091 #if defined(HAS_GROUP) && defined(HAS_SETGRENT)
5095 DIE(aTHX_ PL_no_func, "setgrent");
5102 #if defined(HAS_GROUP) && defined(HAS_ENDGRENT)
5106 DIE(aTHX_ PL_no_func, "endgrent");
5116 if (!(tmps = PerlProc_getlogin()))
5118 PUSHp(tmps, strlen(tmps));
5121 DIE(aTHX_ PL_no_func, "getlogin");
5125 /* Miscellaneous. */
5130 djSP; dMARK; dORIGMARK; dTARGET;
5131 register I32 items = SP - MARK;
5132 unsigned long a[20];
5138 while (++MARK <= SP) {
5139 if (SvTAINTED(*MARK)) {
5145 TAINT_PROPER("syscall");
5148 /* This probably won't work on machines where sizeof(long) != sizeof(int)
5149 * or where sizeof(long) != sizeof(char*). But such machines will
5150 * not likely have syscall implemented either, so who cares?
5152 while (++MARK <= SP) {
5153 if (SvNIOK(*MARK) || !i)
5154 a[i++] = SvIV(*MARK);
5155 else if (*MARK == &PL_sv_undef)
5158 a[i++] = (unsigned long)SvPV_force(*MARK, n_a);
5164 DIE(aTHX_ "Too many args to syscall");
5166 DIE(aTHX_ "Too few args to syscall");
5168 retval = syscall(a[0]);
5171 retval = syscall(a[0],a[1]);
5174 retval = syscall(a[0],a[1],a[2]);
5177 retval = syscall(a[0],a[1],a[2],a[3]);
5180 retval = syscall(a[0],a[1],a[2],a[3],a[4]);
5183 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]);
5186 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]);
5189 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]);
5193 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]);
5196 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]);
5199 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5203 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5207 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5211 retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],
5212 a[10],a[11],a[12],a[13]);
5214 #endif /* atarist */
5220 DIE(aTHX_ PL_no_func, "syscall");
5224 #ifdef FCNTL_EMULATE_FLOCK
5226 /* XXX Emulate flock() with fcntl().
5227 What's really needed is a good file locking module.
5231 fcntl_emulate_flock(int fd, int operation)
5235 switch (operation & ~LOCK_NB) {
5237 flock.l_type = F_RDLCK;
5240 flock.l_type = F_WRLCK;
5243 flock.l_type = F_UNLCK;
5249 flock.l_whence = SEEK_SET;
5250 flock.l_start = flock.l_len = (Off_t)0;
5252 return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock);
5255 #endif /* FCNTL_EMULATE_FLOCK */
5257 #ifdef LOCKF_EMULATE_FLOCK
5259 /* XXX Emulate flock() with lockf(). This is just to increase
5260 portability of scripts. The calls are not completely
5261 interchangeable. What's really needed is a good file
5265 /* The lockf() constants might have been defined in <unistd.h>.
5266 Unfortunately, <unistd.h> causes troubles on some mixed
5267 (BSD/POSIX) systems, such as SunOS 4.1.3.
5269 Further, the lockf() constants aren't POSIX, so they might not be
5270 visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll
5271 just stick in the SVID values and be done with it. Sigh.
5275 # define F_ULOCK 0 /* Unlock a previously locked region */
5278 # define F_LOCK 1 /* Lock a region for exclusive use */
5281 # define F_TLOCK 2 /* Test and lock a region for exclusive use */
5284 # define F_TEST 3 /* Test a region for other processes locks */
5288 lockf_emulate_flock(int fd, int operation)
5294 /* flock locks entire file so for lockf we need to do the same */
5296 pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */
5297 if (pos > 0) /* is seekable and needs to be repositioned */
5298 if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0)
5299 pos = -1; /* seek failed, so don't seek back afterwards */
5302 switch (operation) {
5304 /* LOCK_SH - get a shared lock */
5306 /* LOCK_EX - get an exclusive lock */
5308 i = lockf (fd, F_LOCK, 0);
5311 /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
5312 case LOCK_SH|LOCK_NB:
5313 /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
5314 case LOCK_EX|LOCK_NB:
5315 i = lockf (fd, F_TLOCK, 0);
5317 if ((errno == EAGAIN) || (errno == EACCES))
5318 errno = EWOULDBLOCK;
5321 /* LOCK_UN - unlock (non-blocking is a no-op) */
5323 case LOCK_UN|LOCK_NB:
5324 i = lockf (fd, F_ULOCK, 0);
5327 /* Default - can't decipher operation */
5334 if (pos > 0) /* need to restore position of the handle */
5335 PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */
5340 #endif /* LOCKF_EMULATE_FLOCK */