| 1 | /* pp_sys.c |
| 2 | * |
| 3 | * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 4 | * 2004, 2005, 2006, 2007, 2008 by Larry Wall and others |
| 5 | * |
| 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. |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | /* |
| 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. |
| 16 | * |
| 17 | * [p.945 of _The Lord of the Rings_, VI/iii: "Mount Doom"] |
| 18 | */ |
| 19 | |
| 20 | /* This file contains system pp ("push/pop") functions that |
| 21 | * execute the opcodes that make up a perl program. A typical pp function |
| 22 | * expects to find its arguments on the stack, and usually pushes its |
| 23 | * results onto the stack, hence the 'pp' terminology. Each OP structure |
| 24 | * contains a pointer to the relevant pp_foo() function. |
| 25 | * |
| 26 | * By 'system', we mean ops which interact with the OS, such as pp_open(). |
| 27 | */ |
| 28 | |
| 29 | #include "EXTERN.h" |
| 30 | #define PERL_IN_PP_SYS_C |
| 31 | #include "perl.h" |
| 32 | #include "time64.h" |
| 33 | #include "time64.c" |
| 34 | |
| 35 | #ifdef I_SHADOW |
| 36 | /* Shadow password support for solaris - pdo@cs.umd.edu |
| 37 | * Not just Solaris: at least HP-UX, IRIX, Linux. |
| 38 | * The API is from SysV. |
| 39 | * |
| 40 | * There are at least two more shadow interfaces, |
| 41 | * see the comments in pp_gpwent(). |
| 42 | * |
| 43 | * --jhi */ |
| 44 | # ifdef __hpux__ |
| 45 | /* There is a MAXINT coming from <shadow.h> <- <hpsecurity.h> <- <values.h> |
| 46 | * and another MAXINT from "perl.h" <- <sys/param.h>. */ |
| 47 | # undef MAXINT |
| 48 | # endif |
| 49 | # include <shadow.h> |
| 50 | #endif |
| 51 | |
| 52 | #ifdef I_SYS_WAIT |
| 53 | # include <sys/wait.h> |
| 54 | #endif |
| 55 | |
| 56 | #ifdef I_SYS_RESOURCE |
| 57 | # include <sys/resource.h> |
| 58 | #endif |
| 59 | |
| 60 | #ifdef NETWARE |
| 61 | NETDB_DEFINE_CONTEXT |
| 62 | #endif |
| 63 | |
| 64 | #ifdef HAS_SELECT |
| 65 | # ifdef I_SYS_SELECT |
| 66 | # include <sys/select.h> |
| 67 | # endif |
| 68 | #endif |
| 69 | |
| 70 | /* XXX Configure test needed. |
| 71 | h_errno might not be a simple 'int', especially for multi-threaded |
| 72 | applications, see "extern int errno in perl.h". Creating such |
| 73 | a test requires taking into account the differences between |
| 74 | compiling multithreaded and singlethreaded ($ccflags et al). |
| 75 | HOST_NOT_FOUND is typically defined in <netdb.h>. |
| 76 | */ |
| 77 | #if defined(HOST_NOT_FOUND) && !defined(h_errno) && !defined(__CYGWIN__) |
| 78 | extern int h_errno; |
| 79 | #endif |
| 80 | |
| 81 | #ifdef HAS_PASSWD |
| 82 | # ifdef I_PWD |
| 83 | # include <pwd.h> |
| 84 | # else |
| 85 | # if !defined(VMS) |
| 86 | struct passwd *getpwnam (char *); |
| 87 | struct passwd *getpwuid (Uid_t); |
| 88 | # endif |
| 89 | # endif |
| 90 | # ifdef HAS_GETPWENT |
| 91 | #ifndef getpwent |
| 92 | struct passwd *getpwent (void); |
| 93 | #elif defined (VMS) && defined (my_getpwent) |
| 94 | struct passwd *Perl_my_getpwent (pTHX); |
| 95 | #endif |
| 96 | # endif |
| 97 | #endif |
| 98 | |
| 99 | #ifdef HAS_GROUP |
| 100 | # ifdef I_GRP |
| 101 | # include <grp.h> |
| 102 | # else |
| 103 | struct group *getgrnam (char *); |
| 104 | struct group *getgrgid (Gid_t); |
| 105 | # endif |
| 106 | # ifdef HAS_GETGRENT |
| 107 | #ifndef getgrent |
| 108 | struct group *getgrent (void); |
| 109 | #endif |
| 110 | # endif |
| 111 | #endif |
| 112 | |
| 113 | #ifdef I_UTIME |
| 114 | # if defined(_MSC_VER) || defined(__MINGW32__) |
| 115 | # include <sys/utime.h> |
| 116 | # else |
| 117 | # include <utime.h> |
| 118 | # endif |
| 119 | #endif |
| 120 | |
| 121 | #ifdef HAS_CHSIZE |
| 122 | # ifdef my_chsize /* Probably #defined to Perl_my_chsize in embed.h */ |
| 123 | # undef my_chsize |
| 124 | # endif |
| 125 | # define my_chsize PerlLIO_chsize |
| 126 | #else |
| 127 | # ifdef HAS_TRUNCATE |
| 128 | # define my_chsize PerlLIO_chsize |
| 129 | # else |
| 130 | I32 my_chsize(int fd, Off_t length); |
| 131 | # endif |
| 132 | #endif |
| 133 | |
| 134 | #ifdef HAS_FLOCK |
| 135 | # define FLOCK flock |
| 136 | #else /* no flock() */ |
| 137 | |
| 138 | /* fcntl.h might not have been included, even if it exists, because |
| 139 | the current Configure only sets I_FCNTL if it's needed to pick up |
| 140 | the *_OK constants. Make sure it has been included before testing |
| 141 | the fcntl() locking constants. */ |
| 142 | # if defined(HAS_FCNTL) && !defined(I_FCNTL) |
| 143 | # include <fcntl.h> |
| 144 | # endif |
| 145 | |
| 146 | # if defined(HAS_FCNTL) && defined(FCNTL_CAN_LOCK) |
| 147 | # define FLOCK fcntl_emulate_flock |
| 148 | # define FCNTL_EMULATE_FLOCK |
| 149 | # else /* no flock() or fcntl(F_SETLK,...) */ |
| 150 | # ifdef HAS_LOCKF |
| 151 | # define FLOCK lockf_emulate_flock |
| 152 | # define LOCKF_EMULATE_FLOCK |
| 153 | # endif /* lockf */ |
| 154 | # endif /* no flock() or fcntl(F_SETLK,...) */ |
| 155 | |
| 156 | # ifdef FLOCK |
| 157 | static int FLOCK (int, int); |
| 158 | |
| 159 | /* |
| 160 | * These are the flock() constants. Since this sytems doesn't have |
| 161 | * flock(), the values of the constants are probably not available. |
| 162 | */ |
| 163 | # ifndef LOCK_SH |
| 164 | # define LOCK_SH 1 |
| 165 | # endif |
| 166 | # ifndef LOCK_EX |
| 167 | # define LOCK_EX 2 |
| 168 | # endif |
| 169 | # ifndef LOCK_NB |
| 170 | # define LOCK_NB 4 |
| 171 | # endif |
| 172 | # ifndef LOCK_UN |
| 173 | # define LOCK_UN 8 |
| 174 | # endif |
| 175 | # endif /* emulating flock() */ |
| 176 | |
| 177 | #endif /* no flock() */ |
| 178 | |
| 179 | #define ZBTLEN 10 |
| 180 | static const char zero_but_true[ZBTLEN + 1] = "0 but true"; |
| 181 | |
| 182 | #if defined(I_SYS_ACCESS) && !defined(R_OK) |
| 183 | # include <sys/access.h> |
| 184 | #endif |
| 185 | |
| 186 | #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC) |
| 187 | # define FD_CLOEXEC 1 /* NeXT needs this */ |
| 188 | #endif |
| 189 | |
| 190 | #include "reentr.h" |
| 191 | |
| 192 | #ifdef __Lynx__ |
| 193 | /* Missing protos on LynxOS */ |
| 194 | void sethostent(int); |
| 195 | void endhostent(void); |
| 196 | void setnetent(int); |
| 197 | void endnetent(void); |
| 198 | void setprotoent(int); |
| 199 | void endprotoent(void); |
| 200 | void setservent(int); |
| 201 | void endservent(void); |
| 202 | #endif |
| 203 | |
| 204 | #undef PERL_EFF_ACCESS /* EFFective uid/gid ACCESS */ |
| 205 | |
| 206 | /* F_OK unused: if stat() cannot find it... */ |
| 207 | |
| 208 | #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) && defined(EFF_ONLY_OK) && !defined(NO_EFF_ONLY_OK) |
| 209 | /* Digital UNIX (when the EFF_ONLY_OK gets fixed), UnixWare */ |
| 210 | # define PERL_EFF_ACCESS(p,f) (access((p), (f) | EFF_ONLY_OK)) |
| 211 | #endif |
| 212 | |
| 213 | #if !defined(PERL_EFF_ACCESS) && defined(HAS_EACCESS) |
| 214 | # ifdef I_SYS_SECURITY |
| 215 | # include <sys/security.h> |
| 216 | # endif |
| 217 | # ifdef ACC_SELF |
| 218 | /* HP SecureWare */ |
| 219 | # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f), ACC_SELF)) |
| 220 | # else |
| 221 | /* SCO */ |
| 222 | # define PERL_EFF_ACCESS(p,f) (eaccess((p), (f))) |
| 223 | # endif |
| 224 | #endif |
| 225 | |
| 226 | #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESSX) && defined(ACC_SELF) |
| 227 | /* AIX */ |
| 228 | # define PERL_EFF_ACCESS(p,f) (accessx((p), (f), ACC_SELF)) |
| 229 | #endif |
| 230 | |
| 231 | |
| 232 | #if !defined(PERL_EFF_ACCESS) && defined(HAS_ACCESS) \ |
| 233 | && (defined(HAS_SETREUID) || defined(HAS_SETRESUID) \ |
| 234 | || defined(HAS_SETREGID) || defined(HAS_SETRESGID)) |
| 235 | /* The Hard Way. */ |
| 236 | STATIC int |
| 237 | S_emulate_eaccess(pTHX_ const char* path, Mode_t mode) |
| 238 | { |
| 239 | const Uid_t ruid = getuid(); |
| 240 | const Uid_t euid = geteuid(); |
| 241 | const Gid_t rgid = getgid(); |
| 242 | const Gid_t egid = getegid(); |
| 243 | int res; |
| 244 | |
| 245 | #if !defined(HAS_SETREUID) && !defined(HAS_SETRESUID) |
| 246 | Perl_croak(aTHX_ "switching effective uid is not implemented"); |
| 247 | #else |
| 248 | #ifdef HAS_SETREUID |
| 249 | if (setreuid(euid, ruid)) |
| 250 | #else |
| 251 | #ifdef HAS_SETRESUID |
| 252 | if (setresuid(euid, ruid, (Uid_t)-1)) |
| 253 | #endif |
| 254 | #endif |
| 255 | Perl_croak(aTHX_ "entering effective uid failed"); |
| 256 | #endif |
| 257 | |
| 258 | #if !defined(HAS_SETREGID) && !defined(HAS_SETRESGID) |
| 259 | Perl_croak(aTHX_ "switching effective gid is not implemented"); |
| 260 | #else |
| 261 | #ifdef HAS_SETREGID |
| 262 | if (setregid(egid, rgid)) |
| 263 | #else |
| 264 | #ifdef HAS_SETRESGID |
| 265 | if (setresgid(egid, rgid, (Gid_t)-1)) |
| 266 | #endif |
| 267 | #endif |
| 268 | Perl_croak(aTHX_ "entering effective gid failed"); |
| 269 | #endif |
| 270 | |
| 271 | res = access(path, mode); |
| 272 | |
| 273 | #ifdef HAS_SETREUID |
| 274 | if (setreuid(ruid, euid)) |
| 275 | #else |
| 276 | #ifdef HAS_SETRESUID |
| 277 | if (setresuid(ruid, euid, (Uid_t)-1)) |
| 278 | #endif |
| 279 | #endif |
| 280 | Perl_croak(aTHX_ "leaving effective uid failed"); |
| 281 | |
| 282 | #ifdef HAS_SETREGID |
| 283 | if (setregid(rgid, egid)) |
| 284 | #else |
| 285 | #ifdef HAS_SETRESGID |
| 286 | if (setresgid(rgid, egid, (Gid_t)-1)) |
| 287 | #endif |
| 288 | #endif |
| 289 | Perl_croak(aTHX_ "leaving effective gid failed"); |
| 290 | |
| 291 | return res; |
| 292 | } |
| 293 | # define PERL_EFF_ACCESS(p,f) (S_emulate_eaccess(aTHX_ (p), (f))) |
| 294 | #endif |
| 295 | |
| 296 | PP(pp_backtick) |
| 297 | { |
| 298 | dVAR; dSP; dTARGET; |
| 299 | PerlIO *fp; |
| 300 | const char * const tmps = POPpconstx; |
| 301 | const I32 gimme = GIMME_V; |
| 302 | const char *mode = "r"; |
| 303 | |
| 304 | TAINT_PROPER("``"); |
| 305 | if (PL_op->op_private & OPpOPEN_IN_RAW) |
| 306 | mode = "rb"; |
| 307 | else if (PL_op->op_private & OPpOPEN_IN_CRLF) |
| 308 | mode = "rt"; |
| 309 | fp = PerlProc_popen(tmps, mode); |
| 310 | if (fp) { |
| 311 | const char * const type = Perl_PerlIO_context_layers(aTHX_ NULL); |
| 312 | if (type && *type) |
| 313 | PerlIO_apply_layers(aTHX_ fp,mode,type); |
| 314 | |
| 315 | if (gimme == G_VOID) { |
| 316 | char tmpbuf[256]; |
| 317 | while (PerlIO_read(fp, tmpbuf, sizeof tmpbuf) > 0) |
| 318 | NOOP; |
| 319 | } |
| 320 | else if (gimme == G_SCALAR) { |
| 321 | ENTER_with_name("backtick"); |
| 322 | SAVESPTR(PL_rs); |
| 323 | PL_rs = &PL_sv_undef; |
| 324 | sv_setpvs(TARG, ""); /* note that this preserves previous buffer */ |
| 325 | while (sv_gets(TARG, fp, SvCUR(TARG)) != NULL) |
| 326 | NOOP; |
| 327 | LEAVE_with_name("backtick"); |
| 328 | XPUSHs(TARG); |
| 329 | SvTAINTED_on(TARG); |
| 330 | } |
| 331 | else { |
| 332 | for (;;) { |
| 333 | SV * const sv = newSV(79); |
| 334 | if (sv_gets(sv, fp, 0) == NULL) { |
| 335 | SvREFCNT_dec(sv); |
| 336 | break; |
| 337 | } |
| 338 | mXPUSHs(sv); |
| 339 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
| 340 | SvPV_shrink_to_cur(sv); |
| 341 | } |
| 342 | SvTAINTED_on(sv); |
| 343 | } |
| 344 | } |
| 345 | STATUS_NATIVE_CHILD_SET(PerlProc_pclose(fp)); |
| 346 | TAINT; /* "I believe that this is not gratuitous!" */ |
| 347 | } |
| 348 | else { |
| 349 | STATUS_NATIVE_CHILD_SET(-1); |
| 350 | if (gimme == G_SCALAR) |
| 351 | RETPUSHUNDEF; |
| 352 | } |
| 353 | |
| 354 | RETURN; |
| 355 | } |
| 356 | |
| 357 | PP(pp_glob) |
| 358 | { |
| 359 | dVAR; |
| 360 | OP *result; |
| 361 | tryAMAGICunTARGET(iter, -1); |
| 362 | |
| 363 | /* Note that we only ever get here if File::Glob fails to load |
| 364 | * without at the same time croaking, for some reason, or if |
| 365 | * perl was built with PERL_EXTERNAL_GLOB */ |
| 366 | |
| 367 | ENTER_with_name("glob"); |
| 368 | |
| 369 | #ifndef VMS |
| 370 | if (PL_tainting) { |
| 371 | /* |
| 372 | * The external globbing program may use things we can't control, |
| 373 | * so for security reasons we must assume the worst. |
| 374 | */ |
| 375 | TAINT; |
| 376 | taint_proper(PL_no_security, "glob"); |
| 377 | } |
| 378 | #endif /* !VMS */ |
| 379 | |
| 380 | SAVESPTR(PL_last_in_gv); /* We don't want this to be permanent. */ |
| 381 | PL_last_in_gv = MUTABLE_GV(*PL_stack_sp--); |
| 382 | |
| 383 | SAVESPTR(PL_rs); /* This is not permanent, either. */ |
| 384 | PL_rs = newSVpvs_flags("\000", SVs_TEMP); |
| 385 | #ifndef DOSISH |
| 386 | #ifndef CSH |
| 387 | *SvPVX(PL_rs) = '\n'; |
| 388 | #endif /* !CSH */ |
| 389 | #endif /* !DOSISH */ |
| 390 | |
| 391 | result = do_readline(); |
| 392 | LEAVE_with_name("glob"); |
| 393 | return result; |
| 394 | } |
| 395 | |
| 396 | PP(pp_rcatline) |
| 397 | { |
| 398 | dVAR; |
| 399 | PL_last_in_gv = cGVOP_gv; |
| 400 | return do_readline(); |
| 401 | } |
| 402 | |
| 403 | PP(pp_warn) |
| 404 | { |
| 405 | dVAR; dSP; dMARK; |
| 406 | SV *exsv; |
| 407 | const char *pv; |
| 408 | STRLEN len; |
| 409 | if (SP - MARK > 1) { |
| 410 | dTARGET; |
| 411 | do_join(TARG, &PL_sv_no, MARK, SP); |
| 412 | exsv = TARG; |
| 413 | SP = MARK + 1; |
| 414 | } |
| 415 | else if (SP == MARK) { |
| 416 | exsv = &PL_sv_no; |
| 417 | EXTEND(SP, 1); |
| 418 | SP = MARK + 1; |
| 419 | } |
| 420 | else { |
| 421 | exsv = TOPs; |
| 422 | } |
| 423 | |
| 424 | if (SvROK(exsv) || (pv = SvPV_const(exsv, len), len)) { |
| 425 | /* well-formed exception supplied */ |
| 426 | } |
| 427 | else if (SvROK(ERRSV)) { |
| 428 | exsv = ERRSV; |
| 429 | } |
| 430 | else if (SvPOK(ERRSV) && SvCUR(ERRSV)) { |
| 431 | exsv = sv_mortalcopy(ERRSV); |
| 432 | sv_catpvs(exsv, "\t...caught"); |
| 433 | } |
| 434 | else { |
| 435 | exsv = newSVpvs_flags("Warning: something's wrong", SVs_TEMP); |
| 436 | } |
| 437 | warn_sv(exsv); |
| 438 | RETSETYES; |
| 439 | } |
| 440 | |
| 441 | PP(pp_die) |
| 442 | { |
| 443 | dVAR; dSP; dMARK; |
| 444 | SV *exsv; |
| 445 | const char *pv; |
| 446 | STRLEN len; |
| 447 | #ifdef VMS |
| 448 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
| 449 | #endif |
| 450 | if (SP - MARK != 1) { |
| 451 | dTARGET; |
| 452 | do_join(TARG, &PL_sv_no, MARK, SP); |
| 453 | exsv = TARG; |
| 454 | SP = MARK + 1; |
| 455 | } |
| 456 | else { |
| 457 | exsv = TOPs; |
| 458 | } |
| 459 | |
| 460 | if (SvROK(exsv) || (pv = SvPV_const(exsv, len), len)) { |
| 461 | /* well-formed exception supplied */ |
| 462 | } |
| 463 | else if (SvROK(ERRSV)) { |
| 464 | exsv = ERRSV; |
| 465 | if (sv_isobject(exsv)) { |
| 466 | HV * const stash = SvSTASH(SvRV(exsv)); |
| 467 | GV * const gv = gv_fetchmethod(stash, "PROPAGATE"); |
| 468 | if (gv) { |
| 469 | SV * const file = sv_2mortal(newSVpv(CopFILE(PL_curcop),0)); |
| 470 | SV * const line = sv_2mortal(newSVuv(CopLINE(PL_curcop))); |
| 471 | EXTEND(SP, 3); |
| 472 | PUSHMARK(SP); |
| 473 | PUSHs(exsv); |
| 474 | PUSHs(file); |
| 475 | PUSHs(line); |
| 476 | PUTBACK; |
| 477 | call_sv(MUTABLE_SV(GvCV(gv)), |
| 478 | G_SCALAR|G_EVAL|G_KEEPERR); |
| 479 | exsv = sv_mortalcopy(*PL_stack_sp--); |
| 480 | } |
| 481 | } |
| 482 | } |
| 483 | else if (SvPOK(ERRSV) && SvCUR(ERRSV)) { |
| 484 | exsv = sv_mortalcopy(ERRSV); |
| 485 | sv_catpvs(exsv, "\t...propagated"); |
| 486 | } |
| 487 | else { |
| 488 | exsv = newSVpvs_flags("Died", SVs_TEMP); |
| 489 | } |
| 490 | return die_sv(exsv); |
| 491 | } |
| 492 | |
| 493 | /* I/O. */ |
| 494 | |
| 495 | PP(pp_open) |
| 496 | { |
| 497 | dVAR; dSP; |
| 498 | dMARK; dORIGMARK; |
| 499 | dTARGET; |
| 500 | SV *sv; |
| 501 | IO *io; |
| 502 | const char *tmps; |
| 503 | STRLEN len; |
| 504 | bool ok; |
| 505 | |
| 506 | GV * const gv = MUTABLE_GV(*++MARK); |
| 507 | |
| 508 | if (!isGV(gv) && !(SvTYPE(gv) == SVt_PVLV && isGV_with_GP(gv))) |
| 509 | DIE(aTHX_ PL_no_usym, "filehandle"); |
| 510 | |
| 511 | if ((io = GvIOp(gv))) { |
| 512 | MAGIC *mg; |
| 513 | IoFLAGS(GvIOp(gv)) &= ~IOf_UNTAINT; |
| 514 | |
| 515 | if (IoDIRP(io)) |
| 516 | Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED), |
| 517 | "Opening dirhandle %s also as a file", |
| 518 | GvENAME(gv)); |
| 519 | |
| 520 | mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 521 | if (mg) { |
| 522 | /* Method's args are same as ours ... */ |
| 523 | /* ... except handle is replaced by the object */ |
| 524 | *MARK-- = SvTIED_obj(MUTABLE_SV(io), mg); |
| 525 | PUSHMARK(MARK); |
| 526 | PUTBACK; |
| 527 | ENTER_with_name("call_OPEN"); |
| 528 | call_method("OPEN", G_SCALAR); |
| 529 | LEAVE_with_name("call_OPEN"); |
| 530 | SPAGAIN; |
| 531 | RETURN; |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | if (MARK < SP) { |
| 536 | sv = *++MARK; |
| 537 | } |
| 538 | else { |
| 539 | sv = GvSVn(gv); |
| 540 | } |
| 541 | |
| 542 | tmps = SvPV_const(sv, len); |
| 543 | ok = do_openn(gv, tmps, len, FALSE, O_RDONLY, 0, NULL, MARK+1, (SP-MARK)); |
| 544 | SP = ORIGMARK; |
| 545 | if (ok) |
| 546 | PUSHi( (I32)PL_forkprocess ); |
| 547 | else if (PL_forkprocess == 0) /* we are a new child */ |
| 548 | PUSHi(0); |
| 549 | else |
| 550 | RETPUSHUNDEF; |
| 551 | RETURN; |
| 552 | } |
| 553 | |
| 554 | /* These are private to this function, which is private to this file. |
| 555 | Use 0x04 rather than the next available bit, to help the compiler if the |
| 556 | architecture can generate more efficient instructions. */ |
| 557 | #define MORTALIZE_NOT_NEEDED 0x04 |
| 558 | #define TIED_HANDLE_ARGC_SHIFT 3 |
| 559 | |
| 560 | static OP * |
| 561 | S_tied_handle_method(pTHX_ const char *const methname, SV **sp, |
| 562 | IO *const io, MAGIC *const mg, const U32 flags, ...) |
| 563 | { |
| 564 | U32 argc = flags >> TIED_HANDLE_ARGC_SHIFT; |
| 565 | |
| 566 | PERL_ARGS_ASSERT_TIED_HANDLE_METHOD; |
| 567 | |
| 568 | /* Ensure that our flag bits do not overlap. */ |
| 569 | assert((MORTALIZE_NOT_NEEDED & G_WANT) == 0); |
| 570 | assert((G_WANT >> TIED_HANDLE_ARGC_SHIFT) == 0); |
| 571 | |
| 572 | PUSHMARK(sp); |
| 573 | PUSHs(SvTIED_obj(MUTABLE_SV(io), mg)); |
| 574 | if (argc) { |
| 575 | const U32 mortalize_not_needed = flags & MORTALIZE_NOT_NEEDED; |
| 576 | va_list args; |
| 577 | va_start(args, flags); |
| 578 | do { |
| 579 | SV *const arg = va_arg(args, SV *); |
| 580 | if(mortalize_not_needed) |
| 581 | PUSHs(arg); |
| 582 | else |
| 583 | mPUSHs(arg); |
| 584 | } while (--argc); |
| 585 | va_end(args); |
| 586 | } |
| 587 | |
| 588 | PUTBACK; |
| 589 | ENTER_with_name("call_tied_handle_method"); |
| 590 | call_method(methname, flags & G_WANT); |
| 591 | LEAVE_with_name("call_tied_handle_method"); |
| 592 | return NORMAL; |
| 593 | } |
| 594 | |
| 595 | #define tied_handle_method(a,b,c,d) \ |
| 596 | S_tied_handle_method(aTHX_ a,b,c,d,G_SCALAR) |
| 597 | #define tied_handle_method1(a,b,c,d,e) \ |
| 598 | S_tied_handle_method(aTHX_ a,b,c,d,G_SCALAR | (1 << TIED_HANDLE_ARGC_SHIFT),e) |
| 599 | #define tied_handle_method2(a,b,c,d,e,f) \ |
| 600 | S_tied_handle_method(aTHX_ a,b,c,d,G_SCALAR | (2 << TIED_HANDLE_ARGC_SHIFT), e,f) |
| 601 | |
| 602 | PP(pp_close) |
| 603 | { |
| 604 | dVAR; dSP; |
| 605 | GV * const gv = (MAXARG == 0) ? PL_defoutgv : MUTABLE_GV(POPs); |
| 606 | |
| 607 | if (MAXARG == 0) |
| 608 | EXTEND(SP, 1); |
| 609 | |
| 610 | if (gv) { |
| 611 | IO * const io = GvIO(gv); |
| 612 | if (io) { |
| 613 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 614 | if (mg) { |
| 615 | return tied_handle_method("CLOSE", SP, io, mg); |
| 616 | } |
| 617 | } |
| 618 | } |
| 619 | PUSHs(boolSV(do_close(gv, TRUE))); |
| 620 | RETURN; |
| 621 | } |
| 622 | |
| 623 | PP(pp_pipe_op) |
| 624 | { |
| 625 | #ifdef HAS_PIPE |
| 626 | dVAR; |
| 627 | dSP; |
| 628 | register IO *rstio; |
| 629 | register IO *wstio; |
| 630 | int fd[2]; |
| 631 | |
| 632 | GV * const wgv = MUTABLE_GV(POPs); |
| 633 | GV * const rgv = MUTABLE_GV(POPs); |
| 634 | |
| 635 | if (!rgv || !wgv) |
| 636 | goto badexit; |
| 637 | |
| 638 | if (!isGV_with_GP(rgv) || !isGV_with_GP(wgv)) |
| 639 | DIE(aTHX_ PL_no_usym, "filehandle"); |
| 640 | rstio = GvIOn(rgv); |
| 641 | wstio = GvIOn(wgv); |
| 642 | |
| 643 | if (IoIFP(rstio)) |
| 644 | do_close(rgv, FALSE); |
| 645 | if (IoIFP(wstio)) |
| 646 | do_close(wgv, FALSE); |
| 647 | |
| 648 | if (PerlProc_pipe(fd) < 0) |
| 649 | goto badexit; |
| 650 | |
| 651 | IoIFP(rstio) = PerlIO_fdopen(fd[0], "r"PIPE_OPEN_MODE); |
| 652 | IoOFP(wstio) = PerlIO_fdopen(fd[1], "w"PIPE_OPEN_MODE); |
| 653 | IoOFP(rstio) = IoIFP(rstio); |
| 654 | IoIFP(wstio) = IoOFP(wstio); |
| 655 | IoTYPE(rstio) = IoTYPE_RDONLY; |
| 656 | IoTYPE(wstio) = IoTYPE_WRONLY; |
| 657 | |
| 658 | if (!IoIFP(rstio) || !IoOFP(wstio)) { |
| 659 | if (IoIFP(rstio)) |
| 660 | PerlIO_close(IoIFP(rstio)); |
| 661 | else |
| 662 | PerlLIO_close(fd[0]); |
| 663 | if (IoOFP(wstio)) |
| 664 | PerlIO_close(IoOFP(wstio)); |
| 665 | else |
| 666 | PerlLIO_close(fd[1]); |
| 667 | goto badexit; |
| 668 | } |
| 669 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
| 670 | fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */ |
| 671 | fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */ |
| 672 | #endif |
| 673 | RETPUSHYES; |
| 674 | |
| 675 | badexit: |
| 676 | RETPUSHUNDEF; |
| 677 | #else |
| 678 | DIE(aTHX_ PL_no_func, "pipe"); |
| 679 | #endif |
| 680 | } |
| 681 | |
| 682 | PP(pp_fileno) |
| 683 | { |
| 684 | dVAR; dSP; dTARGET; |
| 685 | GV *gv; |
| 686 | IO *io; |
| 687 | PerlIO *fp; |
| 688 | MAGIC *mg; |
| 689 | |
| 690 | if (MAXARG < 1) |
| 691 | RETPUSHUNDEF; |
| 692 | gv = MUTABLE_GV(POPs); |
| 693 | |
| 694 | if (gv && (io = GvIO(gv)) |
| 695 | && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) |
| 696 | { |
| 697 | return tied_handle_method("FILENO", SP, io, mg); |
| 698 | } |
| 699 | |
| 700 | if (!gv || !(io = GvIO(gv)) || !(fp = IoIFP(io))) { |
| 701 | /* Can't do this because people seem to do things like |
| 702 | defined(fileno($foo)) to check whether $foo is a valid fh. |
| 703 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 704 | report_evil_fh(gv, io, PL_op->op_type); |
| 705 | */ |
| 706 | RETPUSHUNDEF; |
| 707 | } |
| 708 | |
| 709 | PUSHi(PerlIO_fileno(fp)); |
| 710 | RETURN; |
| 711 | } |
| 712 | |
| 713 | PP(pp_umask) |
| 714 | { |
| 715 | dVAR; |
| 716 | dSP; |
| 717 | #ifdef HAS_UMASK |
| 718 | dTARGET; |
| 719 | Mode_t anum; |
| 720 | |
| 721 | if (MAXARG < 1) { |
| 722 | anum = PerlLIO_umask(022); |
| 723 | /* setting it to 022 between the two calls to umask avoids |
| 724 | * to have a window where the umask is set to 0 -- meaning |
| 725 | * that another thread could create world-writeable files. */ |
| 726 | if (anum != 022) |
| 727 | (void)PerlLIO_umask(anum); |
| 728 | } |
| 729 | else |
| 730 | anum = PerlLIO_umask(POPi); |
| 731 | TAINT_PROPER("umask"); |
| 732 | XPUSHi(anum); |
| 733 | #else |
| 734 | /* Only DIE if trying to restrict permissions on "user" (self). |
| 735 | * Otherwise it's harmless and more useful to just return undef |
| 736 | * since 'group' and 'other' concepts probably don't exist here. */ |
| 737 | if (MAXARG >= 1 && (POPi & 0700)) |
| 738 | DIE(aTHX_ "umask not implemented"); |
| 739 | XPUSHs(&PL_sv_undef); |
| 740 | #endif |
| 741 | RETURN; |
| 742 | } |
| 743 | |
| 744 | PP(pp_binmode) |
| 745 | { |
| 746 | dVAR; dSP; |
| 747 | GV *gv; |
| 748 | IO *io; |
| 749 | PerlIO *fp; |
| 750 | SV *discp = NULL; |
| 751 | |
| 752 | if (MAXARG < 1) |
| 753 | RETPUSHUNDEF; |
| 754 | if (MAXARG > 1) { |
| 755 | discp = POPs; |
| 756 | } |
| 757 | |
| 758 | gv = MUTABLE_GV(POPs); |
| 759 | |
| 760 | if (gv && (io = GvIO(gv))) { |
| 761 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 762 | if (mg) { |
| 763 | /* This takes advantage of the implementation of the varargs |
| 764 | function, which I don't think that the optimiser will be able to |
| 765 | figure out. Although, as it's a static function, in theory it |
| 766 | could. */ |
| 767 | return S_tied_handle_method(aTHX_ "BINMODE", SP, io, mg, |
| 768 | G_SCALAR|MORTALIZE_NOT_NEEDED |
| 769 | | (discp |
| 770 | ? (1 << TIED_HANDLE_ARGC_SHIFT) : 0), |
| 771 | discp); |
| 772 | } |
| 773 | } |
| 774 | |
| 775 | if (!(io = GvIO(gv)) || !(fp = IoIFP(io))) { |
| 776 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 777 | report_evil_fh(gv, io, PL_op->op_type); |
| 778 | SETERRNO(EBADF,RMS_IFI); |
| 779 | RETPUSHUNDEF; |
| 780 | } |
| 781 | |
| 782 | PUTBACK; |
| 783 | { |
| 784 | STRLEN len = 0; |
| 785 | const char *d = NULL; |
| 786 | int mode; |
| 787 | if (discp) |
| 788 | d = SvPV_const(discp, len); |
| 789 | mode = mode_from_discipline(d, len); |
| 790 | if (PerlIO_binmode(aTHX_ fp, IoTYPE(io), mode, d)) { |
| 791 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
| 792 | if (!PerlIO_binmode(aTHX_ IoOFP(io), IoTYPE(io), mode, d)) { |
| 793 | SPAGAIN; |
| 794 | RETPUSHUNDEF; |
| 795 | } |
| 796 | } |
| 797 | SPAGAIN; |
| 798 | RETPUSHYES; |
| 799 | } |
| 800 | else { |
| 801 | SPAGAIN; |
| 802 | RETPUSHUNDEF; |
| 803 | } |
| 804 | } |
| 805 | } |
| 806 | |
| 807 | PP(pp_tie) |
| 808 | { |
| 809 | dVAR; dSP; dMARK; |
| 810 | HV* stash; |
| 811 | GV *gv = NULL; |
| 812 | SV *sv; |
| 813 | const I32 markoff = MARK - PL_stack_base; |
| 814 | const char *methname; |
| 815 | int how = PERL_MAGIC_tied; |
| 816 | U32 items; |
| 817 | SV *varsv = *++MARK; |
| 818 | |
| 819 | switch(SvTYPE(varsv)) { |
| 820 | case SVt_PVHV: |
| 821 | methname = "TIEHASH"; |
| 822 | HvEITER_set(MUTABLE_HV(varsv), 0); |
| 823 | break; |
| 824 | case SVt_PVAV: |
| 825 | methname = "TIEARRAY"; |
| 826 | break; |
| 827 | case SVt_PVGV: |
| 828 | case SVt_PVLV: |
| 829 | if (isGV_with_GP(varsv)) { |
| 830 | methname = "TIEHANDLE"; |
| 831 | how = PERL_MAGIC_tiedscalar; |
| 832 | /* For tied filehandles, we apply tiedscalar magic to the IO |
| 833 | slot of the GP rather than the GV itself. AMS 20010812 */ |
| 834 | if (!GvIOp(varsv)) |
| 835 | GvIOp(varsv) = newIO(); |
| 836 | varsv = MUTABLE_SV(GvIOp(varsv)); |
| 837 | break; |
| 838 | } |
| 839 | /* FALL THROUGH */ |
| 840 | default: |
| 841 | methname = "TIESCALAR"; |
| 842 | how = PERL_MAGIC_tiedscalar; |
| 843 | break; |
| 844 | } |
| 845 | items = SP - MARK++; |
| 846 | if (sv_isobject(*MARK)) { /* Calls GET magic. */ |
| 847 | ENTER_with_name("call_TIE"); |
| 848 | PUSHSTACKi(PERLSI_MAGIC); |
| 849 | PUSHMARK(SP); |
| 850 | EXTEND(SP,(I32)items); |
| 851 | while (items--) |
| 852 | PUSHs(*MARK++); |
| 853 | PUTBACK; |
| 854 | call_method(methname, G_SCALAR); |
| 855 | } |
| 856 | else { |
| 857 | /* Can't use call_method here, else this: fileno FOO; tie @a, "FOO" |
| 858 | * will attempt to invoke IO::File::TIEARRAY, with (best case) the |
| 859 | * wrong error message, and worse case, supreme action at a distance. |
| 860 | * (Sorry obfuscation writers. You're not going to be given this one.) |
| 861 | */ |
| 862 | STRLEN len; |
| 863 | const char *name = SvPV_nomg_const(*MARK, len); |
| 864 | stash = gv_stashpvn(name, len, 0); |
| 865 | if (!stash || !(gv = gv_fetchmethod(stash, methname))) { |
| 866 | DIE(aTHX_ "Can't locate object method \"%s\" via package \"%"SVf"\"", |
| 867 | methname, SVfARG(SvOK(*MARK) ? *MARK : &PL_sv_no)); |
| 868 | } |
| 869 | ENTER_with_name("call_TIE"); |
| 870 | PUSHSTACKi(PERLSI_MAGIC); |
| 871 | PUSHMARK(SP); |
| 872 | EXTEND(SP,(I32)items); |
| 873 | while (items--) |
| 874 | PUSHs(*MARK++); |
| 875 | PUTBACK; |
| 876 | call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR); |
| 877 | } |
| 878 | SPAGAIN; |
| 879 | |
| 880 | sv = TOPs; |
| 881 | POPSTACK; |
| 882 | if (sv_isobject(sv)) { |
| 883 | sv_unmagic(varsv, how); |
| 884 | /* Croak if a self-tie on an aggregate is attempted. */ |
| 885 | if (varsv == SvRV(sv) && |
| 886 | (SvTYPE(varsv) == SVt_PVAV || |
| 887 | SvTYPE(varsv) == SVt_PVHV)) |
| 888 | Perl_croak(aTHX_ |
| 889 | "Self-ties of arrays and hashes are not supported"); |
| 890 | sv_magic(varsv, (SvRV(sv) == varsv ? NULL : sv), how, NULL, 0); |
| 891 | } |
| 892 | LEAVE_with_name("call_TIE"); |
| 893 | SP = PL_stack_base + markoff; |
| 894 | PUSHs(sv); |
| 895 | RETURN; |
| 896 | } |
| 897 | |
| 898 | PP(pp_untie) |
| 899 | { |
| 900 | dVAR; dSP; |
| 901 | MAGIC *mg; |
| 902 | SV *sv = POPs; |
| 903 | const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) |
| 904 | ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar; |
| 905 | |
| 906 | if (isGV_with_GP(sv) && !(sv = MUTABLE_SV(GvIOp(sv)))) |
| 907 | RETPUSHYES; |
| 908 | |
| 909 | if ((mg = SvTIED_mg(sv, how))) { |
| 910 | SV * const obj = SvRV(SvTIED_obj(sv, mg)); |
| 911 | if (obj) { |
| 912 | GV * const gv = gv_fetchmethod_autoload(SvSTASH(obj), "UNTIE", FALSE); |
| 913 | CV *cv; |
| 914 | if (gv && isGV(gv) && (cv = GvCV(gv))) { |
| 915 | PUSHMARK(SP); |
| 916 | PUSHs(SvTIED_obj(MUTABLE_SV(gv), mg)); |
| 917 | mXPUSHi(SvREFCNT(obj) - 1); |
| 918 | PUTBACK; |
| 919 | ENTER_with_name("call_UNTIE"); |
| 920 | call_sv(MUTABLE_SV(cv), G_VOID); |
| 921 | LEAVE_with_name("call_UNTIE"); |
| 922 | SPAGAIN; |
| 923 | } |
| 924 | else if (mg && SvREFCNT(obj) > 1) { |
| 925 | Perl_ck_warner(aTHX_ packWARN(WARN_UNTIE), |
| 926 | "untie attempted while %"UVuf" inner references still exist", |
| 927 | (UV)SvREFCNT(obj) - 1 ) ; |
| 928 | } |
| 929 | } |
| 930 | } |
| 931 | sv_unmagic(sv, how) ; |
| 932 | RETPUSHYES; |
| 933 | } |
| 934 | |
| 935 | PP(pp_tied) |
| 936 | { |
| 937 | dVAR; |
| 938 | dSP; |
| 939 | const MAGIC *mg; |
| 940 | SV *sv = POPs; |
| 941 | const char how = (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) |
| 942 | ? PERL_MAGIC_tied : PERL_MAGIC_tiedscalar; |
| 943 | |
| 944 | if (isGV_with_GP(sv) && !(sv = MUTABLE_SV(GvIOp(sv)))) |
| 945 | RETPUSHUNDEF; |
| 946 | |
| 947 | if ((mg = SvTIED_mg(sv, how))) { |
| 948 | SV *osv = SvTIED_obj(sv, mg); |
| 949 | if (osv == mg->mg_obj) |
| 950 | osv = sv_mortalcopy(osv); |
| 951 | PUSHs(osv); |
| 952 | RETURN; |
| 953 | } |
| 954 | RETPUSHUNDEF; |
| 955 | } |
| 956 | |
| 957 | PP(pp_dbmopen) |
| 958 | { |
| 959 | dVAR; dSP; |
| 960 | dPOPPOPssrl; |
| 961 | HV* stash; |
| 962 | GV *gv = NULL; |
| 963 | |
| 964 | HV * const hv = MUTABLE_HV(POPs); |
| 965 | SV * const sv = newSVpvs_flags("AnyDBM_File", SVs_TEMP); |
| 966 | stash = gv_stashsv(sv, 0); |
| 967 | if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) { |
| 968 | PUTBACK; |
| 969 | require_pv("AnyDBM_File.pm"); |
| 970 | SPAGAIN; |
| 971 | if (!stash || !(gv = gv_fetchmethod(stash, "TIEHASH"))) |
| 972 | DIE(aTHX_ "No dbm on this machine"); |
| 973 | } |
| 974 | |
| 975 | ENTER; |
| 976 | PUSHMARK(SP); |
| 977 | |
| 978 | EXTEND(SP, 5); |
| 979 | PUSHs(sv); |
| 980 | PUSHs(left); |
| 981 | if (SvIV(right)) |
| 982 | mPUSHu(O_RDWR|O_CREAT); |
| 983 | else |
| 984 | mPUSHu(O_RDWR); |
| 985 | PUSHs(right); |
| 986 | PUTBACK; |
| 987 | call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR); |
| 988 | SPAGAIN; |
| 989 | |
| 990 | if (!sv_isobject(TOPs)) { |
| 991 | SP--; |
| 992 | PUSHMARK(SP); |
| 993 | PUSHs(sv); |
| 994 | PUSHs(left); |
| 995 | mPUSHu(O_RDONLY); |
| 996 | PUSHs(right); |
| 997 | PUTBACK; |
| 998 | call_sv(MUTABLE_SV(GvCV(gv)), G_SCALAR); |
| 999 | SPAGAIN; |
| 1000 | } |
| 1001 | |
| 1002 | if (sv_isobject(TOPs)) { |
| 1003 | sv_unmagic(MUTABLE_SV(hv), PERL_MAGIC_tied); |
| 1004 | sv_magic(MUTABLE_SV(hv), TOPs, PERL_MAGIC_tied, NULL, 0); |
| 1005 | } |
| 1006 | LEAVE; |
| 1007 | RETURN; |
| 1008 | } |
| 1009 | |
| 1010 | PP(pp_sselect) |
| 1011 | { |
| 1012 | #ifdef HAS_SELECT |
| 1013 | dVAR; dSP; dTARGET; |
| 1014 | register I32 i; |
| 1015 | register I32 j; |
| 1016 | register char *s; |
| 1017 | register SV *sv; |
| 1018 | NV value; |
| 1019 | I32 maxlen = 0; |
| 1020 | I32 nfound; |
| 1021 | struct timeval timebuf; |
| 1022 | struct timeval *tbuf = &timebuf; |
| 1023 | I32 growsize; |
| 1024 | char *fd_sets[4]; |
| 1025 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
| 1026 | I32 masksize; |
| 1027 | I32 offset; |
| 1028 | I32 k; |
| 1029 | |
| 1030 | # if BYTEORDER & 0xf0000 |
| 1031 | # define ORDERBYTE (0x88888888 - BYTEORDER) |
| 1032 | # else |
| 1033 | # define ORDERBYTE (0x4444 - BYTEORDER) |
| 1034 | # endif |
| 1035 | |
| 1036 | #endif |
| 1037 | |
| 1038 | SP -= 4; |
| 1039 | for (i = 1; i <= 3; i++) { |
| 1040 | SV * const sv = SP[i]; |
| 1041 | if (!SvOK(sv)) |
| 1042 | continue; |
| 1043 | if (SvREADONLY(sv)) { |
| 1044 | if (SvIsCOW(sv)) |
| 1045 | sv_force_normal_flags(sv, 0); |
| 1046 | if (SvREADONLY(sv) && !(SvPOK(sv) && SvCUR(sv) == 0)) |
| 1047 | Perl_croak_no_modify(aTHX); |
| 1048 | } |
| 1049 | if (!SvPOK(sv)) { |
| 1050 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Non-string passed as bitmask"); |
| 1051 | SvPV_force_nolen(sv); /* force string conversion */ |
| 1052 | } |
| 1053 | j = SvCUR(sv); |
| 1054 | if (maxlen < j) |
| 1055 | maxlen = j; |
| 1056 | } |
| 1057 | |
| 1058 | /* little endians can use vecs directly */ |
| 1059 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
| 1060 | # ifdef NFDBITS |
| 1061 | |
| 1062 | # ifndef NBBY |
| 1063 | # define NBBY 8 |
| 1064 | # endif |
| 1065 | |
| 1066 | masksize = NFDBITS / NBBY; |
| 1067 | # else |
| 1068 | masksize = sizeof(long); /* documented int, everyone seems to use long */ |
| 1069 | # endif |
| 1070 | Zero(&fd_sets[0], 4, char*); |
| 1071 | #endif |
| 1072 | |
| 1073 | # if SELECT_MIN_BITS == 1 |
| 1074 | growsize = sizeof(fd_set); |
| 1075 | # else |
| 1076 | # if defined(__GLIBC__) && defined(__FD_SETSIZE) |
| 1077 | # undef SELECT_MIN_BITS |
| 1078 | # define SELECT_MIN_BITS __FD_SETSIZE |
| 1079 | # endif |
| 1080 | /* If SELECT_MIN_BITS is greater than one we most probably will want |
| 1081 | * to align the sizes with SELECT_MIN_BITS/8 because for example |
| 1082 | * in many little-endian (Intel, Alpha) systems (Linux, OS/2, Digital |
| 1083 | * UNIX, Solaris, NeXT, Darwin) the smallest quantum select() operates |
| 1084 | * on (sets/tests/clears bits) is 32 bits. */ |
| 1085 | growsize = maxlen + (SELECT_MIN_BITS/8 - (maxlen % (SELECT_MIN_BITS/8))); |
| 1086 | # endif |
| 1087 | |
| 1088 | sv = SP[4]; |
| 1089 | if (SvOK(sv)) { |
| 1090 | value = SvNV(sv); |
| 1091 | if (value < 0.0) |
| 1092 | value = 0.0; |
| 1093 | timebuf.tv_sec = (long)value; |
| 1094 | value -= (NV)timebuf.tv_sec; |
| 1095 | timebuf.tv_usec = (long)(value * 1000000.0); |
| 1096 | } |
| 1097 | else |
| 1098 | tbuf = NULL; |
| 1099 | |
| 1100 | for (i = 1; i <= 3; i++) { |
| 1101 | sv = SP[i]; |
| 1102 | if (!SvOK(sv) || SvCUR(sv) == 0) { |
| 1103 | fd_sets[i] = 0; |
| 1104 | continue; |
| 1105 | } |
| 1106 | assert(SvPOK(sv)); |
| 1107 | j = SvLEN(sv); |
| 1108 | if (j < growsize) { |
| 1109 | Sv_Grow(sv, growsize); |
| 1110 | } |
| 1111 | j = SvCUR(sv); |
| 1112 | s = SvPVX(sv) + j; |
| 1113 | while (++j <= growsize) { |
| 1114 | *s++ = '\0'; |
| 1115 | } |
| 1116 | |
| 1117 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
| 1118 | s = SvPVX(sv); |
| 1119 | Newx(fd_sets[i], growsize, char); |
| 1120 | for (offset = 0; offset < growsize; offset += masksize) { |
| 1121 | for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4)) |
| 1122 | fd_sets[i][j+offset] = s[(k % masksize) + offset]; |
| 1123 | } |
| 1124 | #else |
| 1125 | fd_sets[i] = SvPVX(sv); |
| 1126 | #endif |
| 1127 | } |
| 1128 | |
| 1129 | #ifdef PERL_IRIX5_SELECT_TIMEVAL_VOID_CAST |
| 1130 | /* Can't make just the (void*) conditional because that would be |
| 1131 | * cpp #if within cpp macro, and not all compilers like that. */ |
| 1132 | nfound = PerlSock_select( |
| 1133 | maxlen * 8, |
| 1134 | (Select_fd_set_t) fd_sets[1], |
| 1135 | (Select_fd_set_t) fd_sets[2], |
| 1136 | (Select_fd_set_t) fd_sets[3], |
| 1137 | (void*) tbuf); /* Workaround for compiler bug. */ |
| 1138 | #else |
| 1139 | nfound = PerlSock_select( |
| 1140 | maxlen * 8, |
| 1141 | (Select_fd_set_t) fd_sets[1], |
| 1142 | (Select_fd_set_t) fd_sets[2], |
| 1143 | (Select_fd_set_t) fd_sets[3], |
| 1144 | tbuf); |
| 1145 | #endif |
| 1146 | for (i = 1; i <= 3; i++) { |
| 1147 | if (fd_sets[i]) { |
| 1148 | sv = SP[i]; |
| 1149 | #if BYTEORDER != 0x1234 && BYTEORDER != 0x12345678 |
| 1150 | s = SvPVX(sv); |
| 1151 | for (offset = 0; offset < growsize; offset += masksize) { |
| 1152 | for (j = 0, k=ORDERBYTE; j < masksize; j++, (k >>= 4)) |
| 1153 | s[(k % masksize) + offset] = fd_sets[i][j+offset]; |
| 1154 | } |
| 1155 | Safefree(fd_sets[i]); |
| 1156 | #endif |
| 1157 | SvSETMAGIC(sv); |
| 1158 | } |
| 1159 | } |
| 1160 | |
| 1161 | PUSHi(nfound); |
| 1162 | if (GIMME == G_ARRAY && tbuf) { |
| 1163 | value = (NV)(timebuf.tv_sec) + |
| 1164 | (NV)(timebuf.tv_usec) / 1000000.0; |
| 1165 | mPUSHn(value); |
| 1166 | } |
| 1167 | RETURN; |
| 1168 | #else |
| 1169 | DIE(aTHX_ "select not implemented"); |
| 1170 | #endif |
| 1171 | } |
| 1172 | |
| 1173 | /* |
| 1174 | =for apidoc setdefout |
| 1175 | |
| 1176 | Sets PL_defoutgv, the default file handle for output, to the passed in |
| 1177 | typeglob. As PL_defoutgv "owns" a reference on its typeglob, the reference |
| 1178 | count of the passed in typeglob is increased by one, and the reference count |
| 1179 | of the typeglob that PL_defoutgv points to is decreased by one. |
| 1180 | |
| 1181 | =cut |
| 1182 | */ |
| 1183 | |
| 1184 | void |
| 1185 | Perl_setdefout(pTHX_ GV *gv) |
| 1186 | { |
| 1187 | dVAR; |
| 1188 | SvREFCNT_inc_simple_void(gv); |
| 1189 | SvREFCNT_dec(PL_defoutgv); |
| 1190 | PL_defoutgv = gv; |
| 1191 | } |
| 1192 | |
| 1193 | PP(pp_select) |
| 1194 | { |
| 1195 | dVAR; dSP; dTARGET; |
| 1196 | HV *hv; |
| 1197 | GV * const newdefout = (PL_op->op_private > 0) ? (MUTABLE_GV(POPs)) : NULL; |
| 1198 | GV * egv = GvEGVx(PL_defoutgv); |
| 1199 | |
| 1200 | if (!egv) |
| 1201 | egv = PL_defoutgv; |
| 1202 | hv = isGV_with_GP(egv) ? GvSTASH(egv) : NULL; |
| 1203 | if (! hv) |
| 1204 | XPUSHs(&PL_sv_undef); |
| 1205 | else { |
| 1206 | GV * const * const gvp = (GV**)hv_fetch(hv, GvNAME(egv), GvNAMELEN(egv), FALSE); |
| 1207 | if (gvp && *gvp == egv) { |
| 1208 | gv_efullname4(TARG, PL_defoutgv, NULL, TRUE); |
| 1209 | XPUSHTARG; |
| 1210 | } |
| 1211 | else { |
| 1212 | mXPUSHs(newRV(MUTABLE_SV(egv))); |
| 1213 | } |
| 1214 | } |
| 1215 | |
| 1216 | if (newdefout) { |
| 1217 | if (!GvIO(newdefout)) |
| 1218 | gv_IOadd(newdefout); |
| 1219 | setdefout(newdefout); |
| 1220 | } |
| 1221 | |
| 1222 | RETURN; |
| 1223 | } |
| 1224 | |
| 1225 | PP(pp_getc) |
| 1226 | { |
| 1227 | dVAR; dSP; dTARGET; |
| 1228 | IO *io = NULL; |
| 1229 | GV * const gv = (MAXARG==0) ? PL_stdingv : MUTABLE_GV(POPs); |
| 1230 | |
| 1231 | if (MAXARG == 0) |
| 1232 | EXTEND(SP, 1); |
| 1233 | |
| 1234 | if (gv && (io = GvIO(gv))) { |
| 1235 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 1236 | if (mg) { |
| 1237 | const U32 gimme = GIMME_V; |
| 1238 | S_tied_handle_method(aTHX_ "GETC", SP, io, mg, gimme); |
| 1239 | if (gimme == G_SCALAR) { |
| 1240 | SPAGAIN; |
| 1241 | SvSetMagicSV_nosteal(TARG, TOPs); |
| 1242 | } |
| 1243 | return NORMAL; |
| 1244 | } |
| 1245 | } |
| 1246 | if (!gv || do_eof(gv)) { /* make sure we have fp with something */ |
| 1247 | if ((!io || (!IoIFP(io) && IoTYPE(io) != IoTYPE_WRONLY)) |
| 1248 | && ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 1249 | report_evil_fh(gv, io, PL_op->op_type); |
| 1250 | SETERRNO(EBADF,RMS_IFI); |
| 1251 | RETPUSHUNDEF; |
| 1252 | } |
| 1253 | TAINT; |
| 1254 | sv_setpvs(TARG, " "); |
| 1255 | *SvPVX(TARG) = PerlIO_getc(IoIFP(GvIOp(gv))); /* should never be EOF */ |
| 1256 | if (PerlIO_isutf8(IoIFP(GvIOp(gv)))) { |
| 1257 | /* Find out how many bytes the char needs */ |
| 1258 | Size_t len = UTF8SKIP(SvPVX_const(TARG)); |
| 1259 | if (len > 1) { |
| 1260 | SvGROW(TARG,len+1); |
| 1261 | len = PerlIO_read(IoIFP(GvIOp(gv)),SvPVX(TARG)+1,len-1); |
| 1262 | SvCUR_set(TARG,1+len); |
| 1263 | } |
| 1264 | SvUTF8_on(TARG); |
| 1265 | } |
| 1266 | PUSHTARG; |
| 1267 | RETURN; |
| 1268 | } |
| 1269 | |
| 1270 | STATIC OP * |
| 1271 | S_doform(pTHX_ CV *cv, GV *gv, OP *retop) |
| 1272 | { |
| 1273 | dVAR; |
| 1274 | register PERL_CONTEXT *cx; |
| 1275 | const I32 gimme = GIMME_V; |
| 1276 | |
| 1277 | PERL_ARGS_ASSERT_DOFORM; |
| 1278 | |
| 1279 | if (cv && CvCLONE(cv)) |
| 1280 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
| 1281 | |
| 1282 | ENTER; |
| 1283 | SAVETMPS; |
| 1284 | |
| 1285 | PUSHBLOCK(cx, CXt_FORMAT, PL_stack_sp); |
| 1286 | PUSHFORMAT(cx, retop); |
| 1287 | SAVECOMPPAD(); |
| 1288 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); |
| 1289 | |
| 1290 | setdefout(gv); /* locally select filehandle so $% et al work */ |
| 1291 | return CvSTART(cv); |
| 1292 | } |
| 1293 | |
| 1294 | PP(pp_enterwrite) |
| 1295 | { |
| 1296 | dVAR; |
| 1297 | dSP; |
| 1298 | register GV *gv; |
| 1299 | register IO *io; |
| 1300 | GV *fgv; |
| 1301 | CV *cv = NULL; |
| 1302 | SV *tmpsv = NULL; |
| 1303 | |
| 1304 | if (MAXARG == 0) { |
| 1305 | gv = PL_defoutgv; |
| 1306 | EXTEND(SP, 1); |
| 1307 | } |
| 1308 | else { |
| 1309 | gv = MUTABLE_GV(POPs); |
| 1310 | if (!gv) |
| 1311 | gv = PL_defoutgv; |
| 1312 | } |
| 1313 | io = GvIO(gv); |
| 1314 | if (!io) { |
| 1315 | RETPUSHNO; |
| 1316 | } |
| 1317 | if (IoFMT_GV(io)) |
| 1318 | fgv = IoFMT_GV(io); |
| 1319 | else |
| 1320 | fgv = gv; |
| 1321 | |
| 1322 | if (!fgv) |
| 1323 | goto not_a_format_reference; |
| 1324 | |
| 1325 | cv = GvFORM(fgv); |
| 1326 | if (!cv) { |
| 1327 | const char *name; |
| 1328 | tmpsv = sv_newmortal(); |
| 1329 | gv_efullname4(tmpsv, fgv, NULL, FALSE); |
| 1330 | name = SvPV_nolen_const(tmpsv); |
| 1331 | if (name && *name) |
| 1332 | DIE(aTHX_ "Undefined format \"%s\" called", name); |
| 1333 | |
| 1334 | not_a_format_reference: |
| 1335 | DIE(aTHX_ "Not a format reference"); |
| 1336 | } |
| 1337 | IoFLAGS(io) &= ~IOf_DIDTOP; |
| 1338 | return doform(cv,gv,PL_op->op_next); |
| 1339 | } |
| 1340 | |
| 1341 | PP(pp_leavewrite) |
| 1342 | { |
| 1343 | dVAR; dSP; |
| 1344 | GV * const gv = cxstack[cxstack_ix].blk_format.gv; |
| 1345 | register IO * const io = GvIOp(gv); |
| 1346 | PerlIO *ofp; |
| 1347 | PerlIO *fp; |
| 1348 | SV **newsp; |
| 1349 | I32 gimme; |
| 1350 | register PERL_CONTEXT *cx; |
| 1351 | |
| 1352 | if (!io || !(ofp = IoOFP(io))) |
| 1353 | goto forget_top; |
| 1354 | |
| 1355 | DEBUG_f(PerlIO_printf(Perl_debug_log, "left=%ld, todo=%ld\n", |
| 1356 | (long)IoLINES_LEFT(io), (long)FmLINES(PL_formtarget))); |
| 1357 | |
| 1358 | if (IoLINES_LEFT(io) < FmLINES(PL_formtarget) && |
| 1359 | PL_formtarget != PL_toptarget) |
| 1360 | { |
| 1361 | GV *fgv; |
| 1362 | CV *cv; |
| 1363 | if (!IoTOP_GV(io)) { |
| 1364 | GV *topgv; |
| 1365 | |
| 1366 | if (!IoTOP_NAME(io)) { |
| 1367 | SV *topname; |
| 1368 | if (!IoFMT_NAME(io)) |
| 1369 | IoFMT_NAME(io) = savepv(GvNAME(gv)); |
| 1370 | topname = sv_2mortal(Perl_newSVpvf(aTHX_ "%s_TOP", GvNAME(gv))); |
| 1371 | topgv = gv_fetchsv(topname, 0, SVt_PVFM); |
| 1372 | if ((topgv && GvFORM(topgv)) || |
| 1373 | !gv_fetchpvs("top", GV_NOTQUAL, SVt_PVFM)) |
| 1374 | IoTOP_NAME(io) = savesvpv(topname); |
| 1375 | else |
| 1376 | IoTOP_NAME(io) = savepvs("top"); |
| 1377 | } |
| 1378 | topgv = gv_fetchpv(IoTOP_NAME(io), 0, SVt_PVFM); |
| 1379 | if (!topgv || !GvFORM(topgv)) { |
| 1380 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
| 1381 | goto forget_top; |
| 1382 | } |
| 1383 | IoTOP_GV(io) = topgv; |
| 1384 | } |
| 1385 | if (IoFLAGS(io) & IOf_DIDTOP) { /* Oh dear. It still doesn't fit. */ |
| 1386 | I32 lines = IoLINES_LEFT(io); |
| 1387 | const char *s = SvPVX_const(PL_formtarget); |
| 1388 | if (lines <= 0) /* Yow, header didn't even fit!!! */ |
| 1389 | goto forget_top; |
| 1390 | while (lines-- > 0) { |
| 1391 | s = strchr(s, '\n'); |
| 1392 | if (!s) |
| 1393 | break; |
| 1394 | s++; |
| 1395 | } |
| 1396 | if (s) { |
| 1397 | const STRLEN save = SvCUR(PL_formtarget); |
| 1398 | SvCUR_set(PL_formtarget, s - SvPVX_const(PL_formtarget)); |
| 1399 | do_print(PL_formtarget, ofp); |
| 1400 | SvCUR_set(PL_formtarget, save); |
| 1401 | sv_chop(PL_formtarget, s); |
| 1402 | FmLINES(PL_formtarget) -= IoLINES_LEFT(io); |
| 1403 | } |
| 1404 | } |
| 1405 | if (IoLINES_LEFT(io) >= 0 && IoPAGE(io) > 0) |
| 1406 | do_print(PL_formfeed, ofp); |
| 1407 | IoLINES_LEFT(io) = IoPAGE_LEN(io); |
| 1408 | IoPAGE(io)++; |
| 1409 | PL_formtarget = PL_toptarget; |
| 1410 | IoFLAGS(io) |= IOf_DIDTOP; |
| 1411 | fgv = IoTOP_GV(io); |
| 1412 | if (!fgv) |
| 1413 | DIE(aTHX_ "bad top format reference"); |
| 1414 | cv = GvFORM(fgv); |
| 1415 | if (!cv) { |
| 1416 | SV * const sv = sv_newmortal(); |
| 1417 | const char *name; |
| 1418 | gv_efullname4(sv, fgv, NULL, FALSE); |
| 1419 | name = SvPV_nolen_const(sv); |
| 1420 | if (name && *name) |
| 1421 | DIE(aTHX_ "Undefined top format \"%s\" called", name); |
| 1422 | else |
| 1423 | DIE(aTHX_ "Undefined top format called"); |
| 1424 | } |
| 1425 | return doform(cv, gv, PL_op); |
| 1426 | } |
| 1427 | |
| 1428 | forget_top: |
| 1429 | POPBLOCK(cx,PL_curpm); |
| 1430 | POPFORMAT(cx); |
| 1431 | LEAVE; |
| 1432 | |
| 1433 | fp = IoOFP(io); |
| 1434 | if (!fp) { |
| 1435 | if (ckWARN2(WARN_CLOSED,WARN_IO)) { |
| 1436 | if (IoIFP(io)) |
| 1437 | report_evil_fh(gv, io, OP_phoney_INPUT_ONLY); |
| 1438 | else if (ckWARN(WARN_CLOSED)) |
| 1439 | report_evil_fh(gv, io, PL_op->op_type); |
| 1440 | } |
| 1441 | PUSHs(&PL_sv_no); |
| 1442 | } |
| 1443 | else { |
| 1444 | if ((IoLINES_LEFT(io) -= FmLINES(PL_formtarget)) < 0) { |
| 1445 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), "page overflow"); |
| 1446 | } |
| 1447 | if (!do_print(PL_formtarget, fp)) |
| 1448 | PUSHs(&PL_sv_no); |
| 1449 | else { |
| 1450 | FmLINES(PL_formtarget) = 0; |
| 1451 | SvCUR_set(PL_formtarget, 0); |
| 1452 | *SvEND(PL_formtarget) = '\0'; |
| 1453 | if (IoFLAGS(io) & IOf_FLUSH) |
| 1454 | (void)PerlIO_flush(fp); |
| 1455 | PUSHs(&PL_sv_yes); |
| 1456 | } |
| 1457 | } |
| 1458 | /* bad_ofp: */ |
| 1459 | PL_formtarget = PL_bodytarget; |
| 1460 | PUTBACK; |
| 1461 | PERL_UNUSED_VAR(newsp); |
| 1462 | PERL_UNUSED_VAR(gimme); |
| 1463 | return cx->blk_sub.retop; |
| 1464 | } |
| 1465 | |
| 1466 | PP(pp_prtf) |
| 1467 | { |
| 1468 | dVAR; dSP; dMARK; dORIGMARK; |
| 1469 | IO *io; |
| 1470 | PerlIO *fp; |
| 1471 | SV *sv; |
| 1472 | |
| 1473 | GV * const gv |
| 1474 | = (PL_op->op_flags & OPf_STACKED) ? MUTABLE_GV(*++MARK) : PL_defoutgv; |
| 1475 | |
| 1476 | if (gv && (io = GvIO(gv))) { |
| 1477 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 1478 | if (mg) { |
| 1479 | if (MARK == ORIGMARK) { |
| 1480 | MEXTEND(SP, 1); |
| 1481 | ++MARK; |
| 1482 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); |
| 1483 | ++SP; |
| 1484 | } |
| 1485 | PUSHMARK(MARK - 1); |
| 1486 | *MARK = SvTIED_obj(MUTABLE_SV(io), mg); |
| 1487 | PUTBACK; |
| 1488 | ENTER; |
| 1489 | call_method("PRINTF", G_SCALAR); |
| 1490 | LEAVE; |
| 1491 | SPAGAIN; |
| 1492 | MARK = ORIGMARK + 1; |
| 1493 | *MARK = *SP; |
| 1494 | SP = MARK; |
| 1495 | RETURN; |
| 1496 | } |
| 1497 | } |
| 1498 | |
| 1499 | sv = newSV(0); |
| 1500 | if (!(io = GvIO(gv))) { |
| 1501 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 1502 | report_evil_fh(gv, io, PL_op->op_type); |
| 1503 | SETERRNO(EBADF,RMS_IFI); |
| 1504 | goto just_say_no; |
| 1505 | } |
| 1506 | else if (!(fp = IoOFP(io))) { |
| 1507 | if (ckWARN2(WARN_CLOSED,WARN_IO)) { |
| 1508 | if (IoIFP(io)) |
| 1509 | report_evil_fh(gv, io, OP_phoney_INPUT_ONLY); |
| 1510 | else if (ckWARN(WARN_CLOSED)) |
| 1511 | report_evil_fh(gv, io, PL_op->op_type); |
| 1512 | } |
| 1513 | SETERRNO(EBADF,IoIFP(io)?RMS_FAC:RMS_IFI); |
| 1514 | goto just_say_no; |
| 1515 | } |
| 1516 | else { |
| 1517 | if (SvTAINTED(MARK[1])) |
| 1518 | TAINT_PROPER("printf"); |
| 1519 | do_sprintf(sv, SP - MARK, MARK + 1); |
| 1520 | if (!do_print(sv, fp)) |
| 1521 | goto just_say_no; |
| 1522 | |
| 1523 | if (IoFLAGS(io) & IOf_FLUSH) |
| 1524 | if (PerlIO_flush(fp) == EOF) |
| 1525 | goto just_say_no; |
| 1526 | } |
| 1527 | SvREFCNT_dec(sv); |
| 1528 | SP = ORIGMARK; |
| 1529 | PUSHs(&PL_sv_yes); |
| 1530 | RETURN; |
| 1531 | |
| 1532 | just_say_no: |
| 1533 | SvREFCNT_dec(sv); |
| 1534 | SP = ORIGMARK; |
| 1535 | PUSHs(&PL_sv_undef); |
| 1536 | RETURN; |
| 1537 | } |
| 1538 | |
| 1539 | PP(pp_sysopen) |
| 1540 | { |
| 1541 | dVAR; |
| 1542 | dSP; |
| 1543 | const int perm = (MAXARG > 3) ? POPi : 0666; |
| 1544 | const int mode = POPi; |
| 1545 | SV * const sv = POPs; |
| 1546 | GV * const gv = MUTABLE_GV(POPs); |
| 1547 | STRLEN len; |
| 1548 | |
| 1549 | /* Need TIEHANDLE method ? */ |
| 1550 | const char * const tmps = SvPV_const(sv, len); |
| 1551 | /* FIXME? do_open should do const */ |
| 1552 | if (do_open(gv, tmps, len, TRUE, mode, perm, NULL)) { |
| 1553 | IoLINES(GvIOp(gv)) = 0; |
| 1554 | PUSHs(&PL_sv_yes); |
| 1555 | } |
| 1556 | else { |
| 1557 | PUSHs(&PL_sv_undef); |
| 1558 | } |
| 1559 | RETURN; |
| 1560 | } |
| 1561 | |
| 1562 | PP(pp_sysread) |
| 1563 | { |
| 1564 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 1565 | int offset; |
| 1566 | IO *io; |
| 1567 | char *buffer; |
| 1568 | SSize_t length; |
| 1569 | SSize_t count; |
| 1570 | Sock_size_t bufsize; |
| 1571 | SV *bufsv; |
| 1572 | STRLEN blen; |
| 1573 | int fp_utf8; |
| 1574 | int buffer_utf8; |
| 1575 | SV *read_target; |
| 1576 | Size_t got = 0; |
| 1577 | Size_t wanted; |
| 1578 | bool charstart = FALSE; |
| 1579 | STRLEN charskip = 0; |
| 1580 | STRLEN skip = 0; |
| 1581 | |
| 1582 | GV * const gv = MUTABLE_GV(*++MARK); |
| 1583 | if ((PL_op->op_type == OP_READ || PL_op->op_type == OP_SYSREAD) |
| 1584 | && gv && (io = GvIO(gv)) ) |
| 1585 | { |
| 1586 | const MAGIC * mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 1587 | if (mg) { |
| 1588 | SV *sv; |
| 1589 | PUSHMARK(MARK-1); |
| 1590 | *MARK = SvTIED_obj(MUTABLE_SV(io), mg); |
| 1591 | ENTER; |
| 1592 | call_method("READ", G_SCALAR); |
| 1593 | LEAVE; |
| 1594 | SPAGAIN; |
| 1595 | sv = POPs; |
| 1596 | SP = ORIGMARK; |
| 1597 | PUSHs(sv); |
| 1598 | RETURN; |
| 1599 | } |
| 1600 | } |
| 1601 | |
| 1602 | if (!gv) |
| 1603 | goto say_undef; |
| 1604 | bufsv = *++MARK; |
| 1605 | if (! SvOK(bufsv)) |
| 1606 | sv_setpvs(bufsv, ""); |
| 1607 | length = SvIVx(*++MARK); |
| 1608 | SETERRNO(0,0); |
| 1609 | if (MARK < SP) |
| 1610 | offset = SvIVx(*++MARK); |
| 1611 | else |
| 1612 | offset = 0; |
| 1613 | io = GvIO(gv); |
| 1614 | if (!io || !IoIFP(io)) { |
| 1615 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 1616 | report_evil_fh(gv, io, PL_op->op_type); |
| 1617 | SETERRNO(EBADF,RMS_IFI); |
| 1618 | goto say_undef; |
| 1619 | } |
| 1620 | if ((fp_utf8 = PerlIO_isutf8(IoIFP(io))) && !IN_BYTES) { |
| 1621 | buffer = SvPVutf8_force(bufsv, blen); |
| 1622 | /* UTF-8 may not have been set if they are all low bytes */ |
| 1623 | SvUTF8_on(bufsv); |
| 1624 | buffer_utf8 = 0; |
| 1625 | } |
| 1626 | else { |
| 1627 | buffer = SvPV_force(bufsv, blen); |
| 1628 | buffer_utf8 = !IN_BYTES && SvUTF8(bufsv); |
| 1629 | } |
| 1630 | if (length < 0) |
| 1631 | DIE(aTHX_ "Negative length"); |
| 1632 | wanted = length; |
| 1633 | |
| 1634 | charstart = TRUE; |
| 1635 | charskip = 0; |
| 1636 | skip = 0; |
| 1637 | |
| 1638 | #ifdef HAS_SOCKET |
| 1639 | if (PL_op->op_type == OP_RECV) { |
| 1640 | char namebuf[MAXPATHLEN]; |
| 1641 | #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__) |
| 1642 | bufsize = sizeof (struct sockaddr_in); |
| 1643 | #else |
| 1644 | bufsize = sizeof namebuf; |
| 1645 | #endif |
| 1646 | #ifdef OS2 /* At least Warp3+IAK: only the first byte of bufsize set */ |
| 1647 | if (bufsize >= 256) |
| 1648 | bufsize = 255; |
| 1649 | #endif |
| 1650 | buffer = SvGROW(bufsv, (STRLEN)(length+1)); |
| 1651 | /* 'offset' means 'flags' here */ |
| 1652 | count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, offset, |
| 1653 | (struct sockaddr *)namebuf, &bufsize); |
| 1654 | if (count < 0) |
| 1655 | RETPUSHUNDEF; |
| 1656 | #ifdef EPOC |
| 1657 | /* Bogus return without padding */ |
| 1658 | bufsize = sizeof (struct sockaddr_in); |
| 1659 | #endif |
| 1660 | SvCUR_set(bufsv, count); |
| 1661 | *SvEND(bufsv) = '\0'; |
| 1662 | (void)SvPOK_only(bufsv); |
| 1663 | if (fp_utf8) |
| 1664 | SvUTF8_on(bufsv); |
| 1665 | SvSETMAGIC(bufsv); |
| 1666 | /* This should not be marked tainted if the fp is marked clean */ |
| 1667 | if (!(IoFLAGS(io) & IOf_UNTAINT)) |
| 1668 | SvTAINTED_on(bufsv); |
| 1669 | SP = ORIGMARK; |
| 1670 | sv_setpvn(TARG, namebuf, bufsize); |
| 1671 | PUSHs(TARG); |
| 1672 | RETURN; |
| 1673 | } |
| 1674 | #else |
| 1675 | if (PL_op->op_type == OP_RECV) |
| 1676 | DIE(aTHX_ PL_no_sock_func, "recv"); |
| 1677 | #endif |
| 1678 | if (DO_UTF8(bufsv)) { |
| 1679 | /* offset adjust in characters not bytes */ |
| 1680 | blen = sv_len_utf8(bufsv); |
| 1681 | } |
| 1682 | if (offset < 0) { |
| 1683 | if (-offset > (int)blen) |
| 1684 | DIE(aTHX_ "Offset outside string"); |
| 1685 | offset += blen; |
| 1686 | } |
| 1687 | if (DO_UTF8(bufsv)) { |
| 1688 | /* convert offset-as-chars to offset-as-bytes */ |
| 1689 | if (offset >= (int)blen) |
| 1690 | offset += SvCUR(bufsv) - blen; |
| 1691 | else |
| 1692 | offset = utf8_hop((U8 *)buffer,offset) - (U8 *) buffer; |
| 1693 | } |
| 1694 | more_bytes: |
| 1695 | bufsize = SvCUR(bufsv); |
| 1696 | /* Allocating length + offset + 1 isn't perfect in the case of reading |
| 1697 | bytes from a byte file handle into a UTF8 buffer, but it won't harm us |
| 1698 | unduly. |
| 1699 | (should be 2 * length + offset + 1, or possibly something longer if |
| 1700 | PL_encoding is true) */ |
| 1701 | buffer = SvGROW(bufsv, (STRLEN)(length+offset+1)); |
| 1702 | if (offset > 0 && (Sock_size_t)offset > bufsize) { /* Zero any newly allocated space */ |
| 1703 | Zero(buffer+bufsize, offset-bufsize, char); |
| 1704 | } |
| 1705 | buffer = buffer + offset; |
| 1706 | if (!buffer_utf8) { |
| 1707 | read_target = bufsv; |
| 1708 | } else { |
| 1709 | /* Best to read the bytes into a new SV, upgrade that to UTF8, then |
| 1710 | concatenate it to the current buffer. */ |
| 1711 | |
| 1712 | /* Truncate the existing buffer to the start of where we will be |
| 1713 | reading to: */ |
| 1714 | SvCUR_set(bufsv, offset); |
| 1715 | |
| 1716 | read_target = sv_newmortal(); |
| 1717 | SvUPGRADE(read_target, SVt_PV); |
| 1718 | buffer = SvGROW(read_target, (STRLEN)(length + 1)); |
| 1719 | } |
| 1720 | |
| 1721 | if (PL_op->op_type == OP_SYSREAD) { |
| 1722 | #ifdef PERL_SOCK_SYSREAD_IS_RECV |
| 1723 | if (IoTYPE(io) == IoTYPE_SOCKET) { |
| 1724 | count = PerlSock_recv(PerlIO_fileno(IoIFP(io)), |
| 1725 | buffer, length, 0); |
| 1726 | } |
| 1727 | else |
| 1728 | #endif |
| 1729 | { |
| 1730 | count = PerlLIO_read(PerlIO_fileno(IoIFP(io)), |
| 1731 | buffer, length); |
| 1732 | } |
| 1733 | } |
| 1734 | else |
| 1735 | #ifdef HAS_SOCKET__bad_code_maybe |
| 1736 | if (IoTYPE(io) == IoTYPE_SOCKET) { |
| 1737 | char namebuf[MAXPATHLEN]; |
| 1738 | #if defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS) |
| 1739 | bufsize = sizeof (struct sockaddr_in); |
| 1740 | #else |
| 1741 | bufsize = sizeof namebuf; |
| 1742 | #endif |
| 1743 | count = PerlSock_recvfrom(PerlIO_fileno(IoIFP(io)), buffer, length, 0, |
| 1744 | (struct sockaddr *)namebuf, &bufsize); |
| 1745 | } |
| 1746 | else |
| 1747 | #endif |
| 1748 | { |
| 1749 | count = PerlIO_read(IoIFP(io), buffer, length); |
| 1750 | /* PerlIO_read() - like fread() returns 0 on both error and EOF */ |
| 1751 | if (count == 0 && PerlIO_error(IoIFP(io))) |
| 1752 | count = -1; |
| 1753 | } |
| 1754 | if (count < 0) { |
| 1755 | if ((IoTYPE(io) == IoTYPE_WRONLY) && ckWARN(WARN_IO)) |
| 1756 | report_evil_fh(gv, io, OP_phoney_OUTPUT_ONLY); |
| 1757 | goto say_undef; |
| 1758 | } |
| 1759 | SvCUR_set(read_target, count+(buffer - SvPVX_const(read_target))); |
| 1760 | *SvEND(read_target) = '\0'; |
| 1761 | (void)SvPOK_only(read_target); |
| 1762 | if (fp_utf8 && !IN_BYTES) { |
| 1763 | /* Look at utf8 we got back and count the characters */ |
| 1764 | const char *bend = buffer + count; |
| 1765 | while (buffer < bend) { |
| 1766 | if (charstart) { |
| 1767 | skip = UTF8SKIP(buffer); |
| 1768 | charskip = 0; |
| 1769 | } |
| 1770 | if (buffer - charskip + skip > bend) { |
| 1771 | /* partial character - try for rest of it */ |
| 1772 | length = skip - (bend-buffer); |
| 1773 | offset = bend - SvPVX_const(bufsv); |
| 1774 | charstart = FALSE; |
| 1775 | charskip += count; |
| 1776 | goto more_bytes; |
| 1777 | } |
| 1778 | else { |
| 1779 | got++; |
| 1780 | buffer += skip; |
| 1781 | charstart = TRUE; |
| 1782 | charskip = 0; |
| 1783 | } |
| 1784 | } |
| 1785 | /* If we have not 'got' the number of _characters_ we 'wanted' get some more |
| 1786 | provided amount read (count) was what was requested (length) |
| 1787 | */ |
| 1788 | if (got < wanted && count == length) { |
| 1789 | length = wanted - got; |
| 1790 | offset = bend - SvPVX_const(bufsv); |
| 1791 | goto more_bytes; |
| 1792 | } |
| 1793 | /* return value is character count */ |
| 1794 | count = got; |
| 1795 | SvUTF8_on(bufsv); |
| 1796 | } |
| 1797 | else if (buffer_utf8) { |
| 1798 | /* Let svcatsv upgrade the bytes we read in to utf8. |
| 1799 | The buffer is a mortal so will be freed soon. */ |
| 1800 | sv_catsv_nomg(bufsv, read_target); |
| 1801 | } |
| 1802 | SvSETMAGIC(bufsv); |
| 1803 | /* This should not be marked tainted if the fp is marked clean */ |
| 1804 | if (!(IoFLAGS(io) & IOf_UNTAINT)) |
| 1805 | SvTAINTED_on(bufsv); |
| 1806 | SP = ORIGMARK; |
| 1807 | PUSHi(count); |
| 1808 | RETURN; |
| 1809 | |
| 1810 | say_undef: |
| 1811 | SP = ORIGMARK; |
| 1812 | RETPUSHUNDEF; |
| 1813 | } |
| 1814 | |
| 1815 | PP(pp_send) |
| 1816 | { |
| 1817 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 1818 | IO *io; |
| 1819 | SV *bufsv; |
| 1820 | const char *buffer; |
| 1821 | SSize_t retval; |
| 1822 | STRLEN blen; |
| 1823 | STRLEN orig_blen_bytes; |
| 1824 | const int op_type = PL_op->op_type; |
| 1825 | bool doing_utf8; |
| 1826 | U8 *tmpbuf = NULL; |
| 1827 | |
| 1828 | GV *const gv = MUTABLE_GV(*++MARK); |
| 1829 | if (PL_op->op_type == OP_SYSWRITE |
| 1830 | && gv && (io = GvIO(gv))) { |
| 1831 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 1832 | if (mg) { |
| 1833 | SV *sv; |
| 1834 | |
| 1835 | if (MARK == SP - 1) { |
| 1836 | sv = *SP; |
| 1837 | mXPUSHi(sv_len(sv)); |
| 1838 | PUTBACK; |
| 1839 | } |
| 1840 | |
| 1841 | PUSHMARK(ORIGMARK); |
| 1842 | *(ORIGMARK+1) = SvTIED_obj(MUTABLE_SV(io), mg); |
| 1843 | ENTER; |
| 1844 | call_method("WRITE", G_SCALAR); |
| 1845 | LEAVE; |
| 1846 | SPAGAIN; |
| 1847 | sv = POPs; |
| 1848 | SP = ORIGMARK; |
| 1849 | PUSHs(sv); |
| 1850 | RETURN; |
| 1851 | } |
| 1852 | } |
| 1853 | if (!gv) |
| 1854 | goto say_undef; |
| 1855 | |
| 1856 | bufsv = *++MARK; |
| 1857 | |
| 1858 | SETERRNO(0,0); |
| 1859 | io = GvIO(gv); |
| 1860 | if (!io || !IoIFP(io) || IoTYPE(io) == IoTYPE_RDONLY) { |
| 1861 | retval = -1; |
| 1862 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) { |
| 1863 | if (io && IoIFP(io)) |
| 1864 | report_evil_fh(gv, io, OP_phoney_INPUT_ONLY); |
| 1865 | else |
| 1866 | report_evil_fh(gv, io, PL_op->op_type); |
| 1867 | } |
| 1868 | SETERRNO(EBADF,RMS_IFI); |
| 1869 | goto say_undef; |
| 1870 | } |
| 1871 | |
| 1872 | /* Do this first to trigger any overloading. */ |
| 1873 | buffer = SvPV_const(bufsv, blen); |
| 1874 | orig_blen_bytes = blen; |
| 1875 | doing_utf8 = DO_UTF8(bufsv); |
| 1876 | |
| 1877 | if (PerlIO_isutf8(IoIFP(io))) { |
| 1878 | if (!SvUTF8(bufsv)) { |
| 1879 | /* We don't modify the original scalar. */ |
| 1880 | tmpbuf = bytes_to_utf8((const U8*) buffer, &blen); |
| 1881 | buffer = (char *) tmpbuf; |
| 1882 | doing_utf8 = TRUE; |
| 1883 | } |
| 1884 | } |
| 1885 | else if (doing_utf8) { |
| 1886 | STRLEN tmplen = blen; |
| 1887 | U8 * const result = bytes_from_utf8((const U8*) buffer, &tmplen, &doing_utf8); |
| 1888 | if (!doing_utf8) { |
| 1889 | tmpbuf = result; |
| 1890 | buffer = (char *) tmpbuf; |
| 1891 | blen = tmplen; |
| 1892 | } |
| 1893 | else { |
| 1894 | assert((char *)result == buffer); |
| 1895 | Perl_croak(aTHX_ "Wide character in %s", OP_DESC(PL_op)); |
| 1896 | } |
| 1897 | } |
| 1898 | |
| 1899 | if (op_type == OP_SYSWRITE) { |
| 1900 | Size_t length = 0; /* This length is in characters. */ |
| 1901 | STRLEN blen_chars; |
| 1902 | IV offset; |
| 1903 | |
| 1904 | if (doing_utf8) { |
| 1905 | if (tmpbuf) { |
| 1906 | /* The SV is bytes, and we've had to upgrade it. */ |
| 1907 | blen_chars = orig_blen_bytes; |
| 1908 | } else { |
| 1909 | /* The SV really is UTF-8. */ |
| 1910 | if (SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) { |
| 1911 | /* Don't call sv_len_utf8 again because it will call magic |
| 1912 | or overloading a second time, and we might get back a |
| 1913 | different result. */ |
| 1914 | blen_chars = utf8_length((U8*)buffer, (U8*)buffer + blen); |
| 1915 | } else { |
| 1916 | /* It's safe, and it may well be cached. */ |
| 1917 | blen_chars = sv_len_utf8(bufsv); |
| 1918 | } |
| 1919 | } |
| 1920 | } else { |
| 1921 | blen_chars = blen; |
| 1922 | } |
| 1923 | |
| 1924 | if (MARK >= SP) { |
| 1925 | length = blen_chars; |
| 1926 | } else { |
| 1927 | #if Size_t_size > IVSIZE |
| 1928 | length = (Size_t)SvNVx(*++MARK); |
| 1929 | #else |
| 1930 | length = (Size_t)SvIVx(*++MARK); |
| 1931 | #endif |
| 1932 | if ((SSize_t)length < 0) { |
| 1933 | Safefree(tmpbuf); |
| 1934 | DIE(aTHX_ "Negative length"); |
| 1935 | } |
| 1936 | } |
| 1937 | |
| 1938 | if (MARK < SP) { |
| 1939 | offset = SvIVx(*++MARK); |
| 1940 | if (offset < 0) { |
| 1941 | if (-offset > (IV)blen_chars) { |
| 1942 | Safefree(tmpbuf); |
| 1943 | DIE(aTHX_ "Offset outside string"); |
| 1944 | } |
| 1945 | offset += blen_chars; |
| 1946 | } else if (offset > (IV)blen_chars) { |
| 1947 | Safefree(tmpbuf); |
| 1948 | DIE(aTHX_ "Offset outside string"); |
| 1949 | } |
| 1950 | } else |
| 1951 | offset = 0; |
| 1952 | if (length > blen_chars - offset) |
| 1953 | length = blen_chars - offset; |
| 1954 | if (doing_utf8) { |
| 1955 | /* Here we convert length from characters to bytes. */ |
| 1956 | if (tmpbuf || SvGMAGICAL(bufsv) || SvAMAGIC(bufsv)) { |
| 1957 | /* Either we had to convert the SV, or the SV is magical, or |
| 1958 | the SV has overloading, in which case we can't or mustn't |
| 1959 | or mustn't call it again. */ |
| 1960 | |
| 1961 | buffer = (const char*)utf8_hop((const U8 *)buffer, offset); |
| 1962 | length = utf8_hop((U8 *)buffer, length) - (U8 *)buffer; |
| 1963 | } else { |
| 1964 | /* It's a real UTF-8 SV, and it's not going to change under |
| 1965 | us. Take advantage of any cache. */ |
| 1966 | I32 start = offset; |
| 1967 | I32 len_I32 = length; |
| 1968 | |
| 1969 | /* Convert the start and end character positions to bytes. |
| 1970 | Remember that the second argument to sv_pos_u2b is relative |
| 1971 | to the first. */ |
| 1972 | sv_pos_u2b(bufsv, &start, &len_I32); |
| 1973 | |
| 1974 | buffer += start; |
| 1975 | length = len_I32; |
| 1976 | } |
| 1977 | } |
| 1978 | else { |
| 1979 | buffer = buffer+offset; |
| 1980 | } |
| 1981 | #ifdef PERL_SOCK_SYSWRITE_IS_SEND |
| 1982 | if (IoTYPE(io) == IoTYPE_SOCKET) { |
| 1983 | retval = PerlSock_send(PerlIO_fileno(IoIFP(io)), |
| 1984 | buffer, length, 0); |
| 1985 | } |
| 1986 | else |
| 1987 | #endif |
| 1988 | { |
| 1989 | /* See the note at doio.c:do_print about filesize limits. --jhi */ |
| 1990 | retval = PerlLIO_write(PerlIO_fileno(IoIFP(io)), |
| 1991 | buffer, length); |
| 1992 | } |
| 1993 | } |
| 1994 | #ifdef HAS_SOCKET |
| 1995 | else { |
| 1996 | const int flags = SvIVx(*++MARK); |
| 1997 | if (SP > MARK) { |
| 1998 | STRLEN mlen; |
| 1999 | char * const sockbuf = SvPVx(*++MARK, mlen); |
| 2000 | retval = PerlSock_sendto(PerlIO_fileno(IoIFP(io)), buffer, blen, |
| 2001 | flags, (struct sockaddr *)sockbuf, mlen); |
| 2002 | } |
| 2003 | else { |
| 2004 | retval |
| 2005 | = PerlSock_send(PerlIO_fileno(IoIFP(io)), buffer, blen, flags); |
| 2006 | } |
| 2007 | } |
| 2008 | #else |
| 2009 | else |
| 2010 | DIE(aTHX_ PL_no_sock_func, "send"); |
| 2011 | #endif |
| 2012 | |
| 2013 | if (retval < 0) |
| 2014 | goto say_undef; |
| 2015 | SP = ORIGMARK; |
| 2016 | if (doing_utf8) |
| 2017 | retval = utf8_length((U8*)buffer, (U8*)buffer + retval); |
| 2018 | |
| 2019 | Safefree(tmpbuf); |
| 2020 | #if Size_t_size > IVSIZE |
| 2021 | PUSHn(retval); |
| 2022 | #else |
| 2023 | PUSHi(retval); |
| 2024 | #endif |
| 2025 | RETURN; |
| 2026 | |
| 2027 | say_undef: |
| 2028 | Safefree(tmpbuf); |
| 2029 | SP = ORIGMARK; |
| 2030 | RETPUSHUNDEF; |
| 2031 | } |
| 2032 | |
| 2033 | PP(pp_eof) |
| 2034 | { |
| 2035 | dVAR; dSP; |
| 2036 | GV *gv; |
| 2037 | IO *io; |
| 2038 | MAGIC *mg; |
| 2039 | /* |
| 2040 | * in Perl 5.12 and later, the additional parameter is a bitmask: |
| 2041 | * 0 = eof |
| 2042 | * 1 = eof(FH) |
| 2043 | * 2 = eof() <- ARGV magic |
| 2044 | * |
| 2045 | * I'll rely on the compiler's trace flow analysis to decide whether to |
| 2046 | * actually assign this out here, or punt it into the only block where it is |
| 2047 | * used. Doing it out here is DRY on the condition logic. |
| 2048 | */ |
| 2049 | unsigned int which; |
| 2050 | |
| 2051 | if (MAXARG) { |
| 2052 | gv = PL_last_in_gv = MUTABLE_GV(POPs); /* eof(FH) */ |
| 2053 | which = 1; |
| 2054 | } |
| 2055 | else { |
| 2056 | EXTEND(SP, 1); |
| 2057 | |
| 2058 | if (PL_op->op_flags & OPf_SPECIAL) { |
| 2059 | gv = PL_last_in_gv = GvEGVx(PL_argvgv); /* eof() - ARGV magic */ |
| 2060 | which = 2; |
| 2061 | } |
| 2062 | else { |
| 2063 | gv = PL_last_in_gv; /* eof */ |
| 2064 | which = 0; |
| 2065 | } |
| 2066 | } |
| 2067 | |
| 2068 | if (!gv) |
| 2069 | RETPUSHNO; |
| 2070 | |
| 2071 | if ((io = GvIO(gv)) && (mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar))) { |
| 2072 | return tied_handle_method1("EOF", SP, io, mg, newSVuv(which)); |
| 2073 | } |
| 2074 | |
| 2075 | if (!MAXARG && (PL_op->op_flags & OPf_SPECIAL)) { /* eof() */ |
| 2076 | if (io && !IoIFP(io)) { |
| 2077 | if ((IoFLAGS(io) & IOf_START) && av_len(GvAVn(gv)) < 0) { |
| 2078 | IoLINES(io) = 0; |
| 2079 | IoFLAGS(io) &= ~IOf_START; |
| 2080 | do_open(gv, "-", 1, FALSE, O_RDONLY, 0, NULL); |
| 2081 | if (GvSV(gv)) |
| 2082 | sv_setpvs(GvSV(gv), "-"); |
| 2083 | else |
| 2084 | GvSV(gv) = newSVpvs("-"); |
| 2085 | SvSETMAGIC(GvSV(gv)); |
| 2086 | } |
| 2087 | else if (!nextargv(gv)) |
| 2088 | RETPUSHYES; |
| 2089 | } |
| 2090 | } |
| 2091 | |
| 2092 | PUSHs(boolSV(do_eof(gv))); |
| 2093 | RETURN; |
| 2094 | } |
| 2095 | |
| 2096 | PP(pp_tell) |
| 2097 | { |
| 2098 | dVAR; dSP; dTARGET; |
| 2099 | GV *gv; |
| 2100 | IO *io; |
| 2101 | |
| 2102 | if (MAXARG != 0) |
| 2103 | PL_last_in_gv = MUTABLE_GV(POPs); |
| 2104 | else |
| 2105 | EXTEND(SP, 1); |
| 2106 | gv = PL_last_in_gv; |
| 2107 | |
| 2108 | if (gv && (io = GvIO(gv))) { |
| 2109 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 2110 | if (mg) { |
| 2111 | return tied_handle_method("TELL", SP, io, mg); |
| 2112 | } |
| 2113 | } |
| 2114 | else if (!gv) { |
| 2115 | if (!errno) |
| 2116 | SETERRNO(EBADF,RMS_IFI); |
| 2117 | PUSHi(-1); |
| 2118 | RETURN; |
| 2119 | } |
| 2120 | |
| 2121 | #if LSEEKSIZE > IVSIZE |
| 2122 | PUSHn( do_tell(gv) ); |
| 2123 | #else |
| 2124 | PUSHi( do_tell(gv) ); |
| 2125 | #endif |
| 2126 | RETURN; |
| 2127 | } |
| 2128 | |
| 2129 | PP(pp_sysseek) |
| 2130 | { |
| 2131 | dVAR; dSP; |
| 2132 | const int whence = POPi; |
| 2133 | #if LSEEKSIZE > IVSIZE |
| 2134 | const Off_t offset = (Off_t)SvNVx(POPs); |
| 2135 | #else |
| 2136 | const Off_t offset = (Off_t)SvIVx(POPs); |
| 2137 | #endif |
| 2138 | |
| 2139 | GV * const gv = PL_last_in_gv = MUTABLE_GV(POPs); |
| 2140 | IO *io; |
| 2141 | |
| 2142 | if (gv && (io = GvIO(gv))) { |
| 2143 | MAGIC * const mg = SvTIED_mg((const SV *)io, PERL_MAGIC_tiedscalar); |
| 2144 | if (mg) { |
| 2145 | #if LSEEKSIZE > IVSIZE |
| 2146 | SV *const offset_sv = newSVnv((NV) offset); |
| 2147 | #else |
| 2148 | SV *const offset_sv = newSViv(offset); |
| 2149 | #endif |
| 2150 | |
| 2151 | return tied_handle_method2("SEEK", SP, io, mg, offset_sv, |
| 2152 | newSViv(whence)); |
| 2153 | } |
| 2154 | } |
| 2155 | |
| 2156 | if (PL_op->op_type == OP_SEEK) |
| 2157 | PUSHs(boolSV(do_seek(gv, offset, whence))); |
| 2158 | else { |
| 2159 | const Off_t sought = do_sysseek(gv, offset, whence); |
| 2160 | if (sought < 0) |
| 2161 | PUSHs(&PL_sv_undef); |
| 2162 | else { |
| 2163 | SV* const sv = sought ? |
| 2164 | #if LSEEKSIZE > IVSIZE |
| 2165 | newSVnv((NV)sought) |
| 2166 | #else |
| 2167 | newSViv(sought) |
| 2168 | #endif |
| 2169 | : newSVpvn(zero_but_true, ZBTLEN); |
| 2170 | mPUSHs(sv); |
| 2171 | } |
| 2172 | } |
| 2173 | RETURN; |
| 2174 | } |
| 2175 | |
| 2176 | PP(pp_truncate) |
| 2177 | { |
| 2178 | dVAR; |
| 2179 | dSP; |
| 2180 | /* There seems to be no consensus on the length type of truncate() |
| 2181 | * and ftruncate(), both off_t and size_t have supporters. In |
| 2182 | * general one would think that when using large files, off_t is |
| 2183 | * at least as wide as size_t, so using an off_t should be okay. */ |
| 2184 | /* XXX Configure probe for the length type of *truncate() needed XXX */ |
| 2185 | Off_t len; |
| 2186 | |
| 2187 | #if Off_t_size > IVSIZE |
| 2188 | len = (Off_t)POPn; |
| 2189 | #else |
| 2190 | len = (Off_t)POPi; |
| 2191 | #endif |
| 2192 | /* Checking for length < 0 is problematic as the type might or |
| 2193 | * might not be signed: if it is not, clever compilers will moan. */ |
| 2194 | /* XXX Configure probe for the signedness of the length type of *truncate() needed? XXX */ |
| 2195 | SETERRNO(0,0); |
| 2196 | { |
| 2197 | int result = 1; |
| 2198 | GV *tmpgv; |
| 2199 | IO *io; |
| 2200 | |
| 2201 | if (PL_op->op_flags & OPf_SPECIAL) { |
| 2202 | tmpgv = gv_fetchsv(POPs, 0, SVt_PVIO); |
| 2203 | |
| 2204 | do_ftruncate_gv: |
| 2205 | if (!GvIO(tmpgv)) |
| 2206 | result = 0; |
| 2207 | else { |
| 2208 | PerlIO *fp; |
| 2209 | io = GvIOp(tmpgv); |
| 2210 | do_ftruncate_io: |
| 2211 | TAINT_PROPER("truncate"); |
| 2212 | if (!(fp = IoIFP(io))) { |
| 2213 | result = 0; |
| 2214 | } |
| 2215 | else { |
| 2216 | PerlIO_flush(fp); |
| 2217 | #ifdef HAS_TRUNCATE |
| 2218 | if (ftruncate(PerlIO_fileno(fp), len) < 0) |
| 2219 | #else |
| 2220 | if (my_chsize(PerlIO_fileno(fp), len) < 0) |
| 2221 | #endif |
| 2222 | result = 0; |
| 2223 | } |
| 2224 | } |
| 2225 | } |
| 2226 | else { |
| 2227 | SV * const sv = POPs; |
| 2228 | const char *name; |
| 2229 | |
| 2230 | if (isGV_with_GP(sv)) { |
| 2231 | tmpgv = MUTABLE_GV(sv); /* *main::FRED for example */ |
| 2232 | goto do_ftruncate_gv; |
| 2233 | } |
| 2234 | else if (SvROK(sv) && isGV_with_GP(SvRV(sv))) { |
| 2235 | tmpgv = MUTABLE_GV(SvRV(sv)); /* \*main::FRED for example */ |
| 2236 | goto do_ftruncate_gv; |
| 2237 | } |
| 2238 | else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) { |
| 2239 | io = MUTABLE_IO(SvRV(sv)); /* *main::FRED{IO} for example */ |
| 2240 | goto do_ftruncate_io; |
| 2241 | } |
| 2242 | |
| 2243 | name = SvPV_nolen_const(sv); |
| 2244 | TAINT_PROPER("truncate"); |
| 2245 | #ifdef HAS_TRUNCATE |
| 2246 | if (truncate(name, len) < 0) |
| 2247 | result = 0; |
| 2248 | #else |
| 2249 | { |
| 2250 | const int tmpfd = PerlLIO_open(name, O_RDWR); |
| 2251 | |
| 2252 | if (tmpfd < 0) |
| 2253 | result = 0; |
| 2254 | else { |
| 2255 | if (my_chsize(tmpfd, len) < 0) |
| 2256 | result = 0; |
| 2257 | PerlLIO_close(tmpfd); |
| 2258 | } |
| 2259 | } |
| 2260 | #endif |
| 2261 | } |
| 2262 | |
| 2263 | if (result) |
| 2264 | RETPUSHYES; |
| 2265 | if (!errno) |
| 2266 | SETERRNO(EBADF,RMS_IFI); |
| 2267 | RETPUSHUNDEF; |
| 2268 | } |
| 2269 | } |
| 2270 | |
| 2271 | PP(pp_ioctl) |
| 2272 | { |
| 2273 | dVAR; dSP; dTARGET; |
| 2274 | SV * const argsv = POPs; |
| 2275 | const unsigned int func = POPu; |
| 2276 | const int optype = PL_op->op_type; |
| 2277 | GV * const gv = MUTABLE_GV(POPs); |
| 2278 | IO * const io = gv ? GvIOn(gv) : NULL; |
| 2279 | char *s; |
| 2280 | IV retval; |
| 2281 | |
| 2282 | if (!io || !argsv || !IoIFP(io)) { |
| 2283 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 2284 | report_evil_fh(gv, io, PL_op->op_type); |
| 2285 | SETERRNO(EBADF,RMS_IFI); /* well, sort of... */ |
| 2286 | RETPUSHUNDEF; |
| 2287 | } |
| 2288 | |
| 2289 | if (SvPOK(argsv) || !SvNIOK(argsv)) { |
| 2290 | STRLEN len; |
| 2291 | STRLEN need; |
| 2292 | s = SvPV_force(argsv, len); |
| 2293 | need = IOCPARM_LEN(func); |
| 2294 | if (len < need) { |
| 2295 | s = Sv_Grow(argsv, need + 1); |
| 2296 | SvCUR_set(argsv, need); |
| 2297 | } |
| 2298 | |
| 2299 | s[SvCUR(argsv)] = 17; /* a little sanity check here */ |
| 2300 | } |
| 2301 | else { |
| 2302 | retval = SvIV(argsv); |
| 2303 | s = INT2PTR(char*,retval); /* ouch */ |
| 2304 | } |
| 2305 | |
| 2306 | TAINT_PROPER(PL_op_desc[optype]); |
| 2307 | |
| 2308 | if (optype == OP_IOCTL) |
| 2309 | #ifdef HAS_IOCTL |
| 2310 | retval = PerlLIO_ioctl(PerlIO_fileno(IoIFP(io)), func, s); |
| 2311 | #else |
| 2312 | DIE(aTHX_ "ioctl is not implemented"); |
| 2313 | #endif |
| 2314 | else |
| 2315 | #ifndef HAS_FCNTL |
| 2316 | DIE(aTHX_ "fcntl is not implemented"); |
| 2317 | #else |
| 2318 | #if defined(OS2) && defined(__EMX__) |
| 2319 | retval = fcntl(PerlIO_fileno(IoIFP(io)), func, (int)s); |
| 2320 | #else |
| 2321 | retval = fcntl(PerlIO_fileno(IoIFP(io)), func, s); |
| 2322 | #endif |
| 2323 | #endif |
| 2324 | |
| 2325 | #if defined(HAS_IOCTL) || defined(HAS_FCNTL) |
| 2326 | if (SvPOK(argsv)) { |
| 2327 | if (s[SvCUR(argsv)] != 17) |
| 2328 | DIE(aTHX_ "Possible memory corruption: %s overflowed 3rd argument", |
| 2329 | OP_NAME(PL_op)); |
| 2330 | s[SvCUR(argsv)] = 0; /* put our null back */ |
| 2331 | SvSETMAGIC(argsv); /* Assume it has changed */ |
| 2332 | } |
| 2333 | |
| 2334 | if (retval == -1) |
| 2335 | RETPUSHUNDEF; |
| 2336 | if (retval != 0) { |
| 2337 | PUSHi(retval); |
| 2338 | } |
| 2339 | else { |
| 2340 | PUSHp(zero_but_true, ZBTLEN); |
| 2341 | } |
| 2342 | #endif |
| 2343 | RETURN; |
| 2344 | } |
| 2345 | |
| 2346 | PP(pp_flock) |
| 2347 | { |
| 2348 | #ifdef FLOCK |
| 2349 | dVAR; dSP; dTARGET; |
| 2350 | I32 value; |
| 2351 | IO *io = NULL; |
| 2352 | PerlIO *fp; |
| 2353 | const int argtype = POPi; |
| 2354 | GV * const gv = (MAXARG == 0) ? PL_last_in_gv : MUTABLE_GV(POPs); |
| 2355 | |
| 2356 | if (gv && (io = GvIO(gv))) |
| 2357 | fp = IoIFP(io); |
| 2358 | else { |
| 2359 | fp = NULL; |
| 2360 | io = NULL; |
| 2361 | } |
| 2362 | /* XXX Looks to me like io is always NULL at this point */ |
| 2363 | if (fp) { |
| 2364 | (void)PerlIO_flush(fp); |
| 2365 | value = (I32)(PerlLIO_flock(PerlIO_fileno(fp), argtype) >= 0); |
| 2366 | } |
| 2367 | else { |
| 2368 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 2369 | report_evil_fh(gv, io, PL_op->op_type); |
| 2370 | value = 0; |
| 2371 | SETERRNO(EBADF,RMS_IFI); |
| 2372 | } |
| 2373 | PUSHi(value); |
| 2374 | RETURN; |
| 2375 | #else |
| 2376 | DIE(aTHX_ PL_no_func, "flock()"); |
| 2377 | #endif |
| 2378 | } |
| 2379 | |
| 2380 | /* Sockets. */ |
| 2381 | |
| 2382 | PP(pp_socket) |
| 2383 | { |
| 2384 | #ifdef HAS_SOCKET |
| 2385 | dVAR; dSP; |
| 2386 | const int protocol = POPi; |
| 2387 | const int type = POPi; |
| 2388 | const int domain = POPi; |
| 2389 | GV * const gv = MUTABLE_GV(POPs); |
| 2390 | register IO * const io = gv ? GvIOn(gv) : NULL; |
| 2391 | int fd; |
| 2392 | |
| 2393 | if (!gv || !io) { |
| 2394 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 2395 | report_evil_fh(gv, io, PL_op->op_type); |
| 2396 | if (io && IoIFP(io)) |
| 2397 | do_close(gv, FALSE); |
| 2398 | SETERRNO(EBADF,LIB_INVARG); |
| 2399 | RETPUSHUNDEF; |
| 2400 | } |
| 2401 | |
| 2402 | if (IoIFP(io)) |
| 2403 | do_close(gv, FALSE); |
| 2404 | |
| 2405 | TAINT_PROPER("socket"); |
| 2406 | fd = PerlSock_socket(domain, type, protocol); |
| 2407 | if (fd < 0) |
| 2408 | RETPUSHUNDEF; |
| 2409 | IoIFP(io) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); /* stdio gets confused about sockets */ |
| 2410 | IoOFP(io) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE); |
| 2411 | IoTYPE(io) = IoTYPE_SOCKET; |
| 2412 | if (!IoIFP(io) || !IoOFP(io)) { |
| 2413 | if (IoIFP(io)) PerlIO_close(IoIFP(io)); |
| 2414 | if (IoOFP(io)) PerlIO_close(IoOFP(io)); |
| 2415 | if (!IoIFP(io) && !IoOFP(io)) PerlLIO_close(fd); |
| 2416 | RETPUSHUNDEF; |
| 2417 | } |
| 2418 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
| 2419 | fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */ |
| 2420 | #endif |
| 2421 | |
| 2422 | #ifdef EPOC |
| 2423 | setbuf( IoIFP(io), NULL); /* EPOC gets confused about sockets */ |
| 2424 | #endif |
| 2425 | |
| 2426 | RETPUSHYES; |
| 2427 | #else |
| 2428 | DIE(aTHX_ PL_no_sock_func, "socket"); |
| 2429 | #endif |
| 2430 | } |
| 2431 | |
| 2432 | PP(pp_sockpair) |
| 2433 | { |
| 2434 | #if defined (HAS_SOCKETPAIR) || (defined (HAS_SOCKET) && defined(SOCK_DGRAM) && defined(AF_INET) && defined(PF_INET)) |
| 2435 | dVAR; dSP; |
| 2436 | const int protocol = POPi; |
| 2437 | const int type = POPi; |
| 2438 | const int domain = POPi; |
| 2439 | GV * const gv2 = MUTABLE_GV(POPs); |
| 2440 | GV * const gv1 = MUTABLE_GV(POPs); |
| 2441 | register IO * const io1 = gv1 ? GvIOn(gv1) : NULL; |
| 2442 | register IO * const io2 = gv2 ? GvIOn(gv2) : NULL; |
| 2443 | int fd[2]; |
| 2444 | |
| 2445 | if (!gv1 || !gv2 || !io1 || !io2) { |
| 2446 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) { |
| 2447 | if (!gv1 || !io1) |
| 2448 | report_evil_fh(gv1, io1, PL_op->op_type); |
| 2449 | if (!gv2 || !io2) |
| 2450 | report_evil_fh(gv1, io2, PL_op->op_type); |
| 2451 | } |
| 2452 | if (io1 && IoIFP(io1)) |
| 2453 | do_close(gv1, FALSE); |
| 2454 | if (io2 && IoIFP(io2)) |
| 2455 | do_close(gv2, FALSE); |
| 2456 | RETPUSHUNDEF; |
| 2457 | } |
| 2458 | |
| 2459 | if (IoIFP(io1)) |
| 2460 | do_close(gv1, FALSE); |
| 2461 | if (IoIFP(io2)) |
| 2462 | do_close(gv2, FALSE); |
| 2463 | |
| 2464 | TAINT_PROPER("socketpair"); |
| 2465 | if (PerlSock_socketpair(domain, type, protocol, fd) < 0) |
| 2466 | RETPUSHUNDEF; |
| 2467 | IoIFP(io1) = PerlIO_fdopen(fd[0], "r"SOCKET_OPEN_MODE); |
| 2468 | IoOFP(io1) = PerlIO_fdopen(fd[0], "w"SOCKET_OPEN_MODE); |
| 2469 | IoTYPE(io1) = IoTYPE_SOCKET; |
| 2470 | IoIFP(io2) = PerlIO_fdopen(fd[1], "r"SOCKET_OPEN_MODE); |
| 2471 | IoOFP(io2) = PerlIO_fdopen(fd[1], "w"SOCKET_OPEN_MODE); |
| 2472 | IoTYPE(io2) = IoTYPE_SOCKET; |
| 2473 | if (!IoIFP(io1) || !IoOFP(io1) || !IoIFP(io2) || !IoOFP(io2)) { |
| 2474 | if (IoIFP(io1)) PerlIO_close(IoIFP(io1)); |
| 2475 | if (IoOFP(io1)) PerlIO_close(IoOFP(io1)); |
| 2476 | if (!IoIFP(io1) && !IoOFP(io1)) PerlLIO_close(fd[0]); |
| 2477 | if (IoIFP(io2)) PerlIO_close(IoIFP(io2)); |
| 2478 | if (IoOFP(io2)) PerlIO_close(IoOFP(io2)); |
| 2479 | if (!IoIFP(io2) && !IoOFP(io2)) PerlLIO_close(fd[1]); |
| 2480 | RETPUSHUNDEF; |
| 2481 | } |
| 2482 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
| 2483 | fcntl(fd[0],F_SETFD,fd[0] > PL_maxsysfd); /* ensure close-on-exec */ |
| 2484 | fcntl(fd[1],F_SETFD,fd[1] > PL_maxsysfd); /* ensure close-on-exec */ |
| 2485 | #endif |
| 2486 | |
| 2487 | RETPUSHYES; |
| 2488 | #else |
| 2489 | DIE(aTHX_ PL_no_sock_func, "socketpair"); |
| 2490 | #endif |
| 2491 | } |
| 2492 | |
| 2493 | PP(pp_bind) |
| 2494 | { |
| 2495 | #ifdef HAS_SOCKET |
| 2496 | dVAR; dSP; |
| 2497 | SV * const addrsv = POPs; |
| 2498 | /* OK, so on what platform does bind modify addr? */ |
| 2499 | const char *addr; |
| 2500 | GV * const gv = MUTABLE_GV(POPs); |
| 2501 | register IO * const io = GvIOn(gv); |
| 2502 | STRLEN len; |
| 2503 | |
| 2504 | if (!io || !IoIFP(io)) |
| 2505 | goto nuts; |
| 2506 | |
| 2507 | addr = SvPV_const(addrsv, len); |
| 2508 | TAINT_PROPER("bind"); |
| 2509 | if (PerlSock_bind(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0) |
| 2510 | RETPUSHYES; |
| 2511 | else |
| 2512 | RETPUSHUNDEF; |
| 2513 | |
| 2514 | nuts: |
| 2515 | if (ckWARN(WARN_CLOSED)) |
| 2516 | report_evil_fh(gv, io, PL_op->op_type); |
| 2517 | SETERRNO(EBADF,SS_IVCHAN); |
| 2518 | RETPUSHUNDEF; |
| 2519 | #else |
| 2520 | DIE(aTHX_ PL_no_sock_func, "bind"); |
| 2521 | #endif |
| 2522 | } |
| 2523 | |
| 2524 | PP(pp_connect) |
| 2525 | { |
| 2526 | #ifdef HAS_SOCKET |
| 2527 | dVAR; dSP; |
| 2528 | SV * const addrsv = POPs; |
| 2529 | GV * const gv = MUTABLE_GV(POPs); |
| 2530 | register IO * const io = GvIOn(gv); |
| 2531 | const char *addr; |
| 2532 | STRLEN len; |
| 2533 | |
| 2534 | if (!io || !IoIFP(io)) |
| 2535 | goto nuts; |
| 2536 | |
| 2537 | addr = SvPV_const(addrsv, len); |
| 2538 | TAINT_PROPER("connect"); |
| 2539 | if (PerlSock_connect(PerlIO_fileno(IoIFP(io)), (struct sockaddr *)addr, len) >= 0) |
| 2540 | RETPUSHYES; |
| 2541 | else |
| 2542 | RETPUSHUNDEF; |
| 2543 | |
| 2544 | nuts: |
| 2545 | if (ckWARN(WARN_CLOSED)) |
| 2546 | report_evil_fh(gv, io, PL_op->op_type); |
| 2547 | SETERRNO(EBADF,SS_IVCHAN); |
| 2548 | RETPUSHUNDEF; |
| 2549 | #else |
| 2550 | DIE(aTHX_ PL_no_sock_func, "connect"); |
| 2551 | #endif |
| 2552 | } |
| 2553 | |
| 2554 | PP(pp_listen) |
| 2555 | { |
| 2556 | #ifdef HAS_SOCKET |
| 2557 | dVAR; dSP; |
| 2558 | const int backlog = POPi; |
| 2559 | GV * const gv = MUTABLE_GV(POPs); |
| 2560 | register IO * const io = gv ? GvIOn(gv) : NULL; |
| 2561 | |
| 2562 | if (!gv || !io || !IoIFP(io)) |
| 2563 | goto nuts; |
| 2564 | |
| 2565 | if (PerlSock_listen(PerlIO_fileno(IoIFP(io)), backlog) >= 0) |
| 2566 | RETPUSHYES; |
| 2567 | else |
| 2568 | RETPUSHUNDEF; |
| 2569 | |
| 2570 | nuts: |
| 2571 | if (ckWARN(WARN_CLOSED)) |
| 2572 | report_evil_fh(gv, io, PL_op->op_type); |
| 2573 | SETERRNO(EBADF,SS_IVCHAN); |
| 2574 | RETPUSHUNDEF; |
| 2575 | #else |
| 2576 | DIE(aTHX_ PL_no_sock_func, "listen"); |
| 2577 | #endif |
| 2578 | } |
| 2579 | |
| 2580 | PP(pp_accept) |
| 2581 | { |
| 2582 | #ifdef HAS_SOCKET |
| 2583 | dVAR; dSP; dTARGET; |
| 2584 | register IO *nstio; |
| 2585 | register IO *gstio; |
| 2586 | char namebuf[MAXPATHLEN]; |
| 2587 | #if (defined(VMS_DO_SOCKETS) && defined(DECCRTL_SOCKETS)) || defined(MPE) || defined(__QNXNTO__) |
| 2588 | Sock_size_t len = sizeof (struct sockaddr_in); |
| 2589 | #else |
| 2590 | Sock_size_t len = sizeof namebuf; |
| 2591 | #endif |
| 2592 | GV * const ggv = MUTABLE_GV(POPs); |
| 2593 | GV * const ngv = MUTABLE_GV(POPs); |
| 2594 | int fd; |
| 2595 | |
| 2596 | if (!ngv) |
| 2597 | goto badexit; |
| 2598 | if (!ggv) |
| 2599 | goto nuts; |
| 2600 | |
| 2601 | gstio = GvIO(ggv); |
| 2602 | if (!gstio || !IoIFP(gstio)) |
| 2603 | goto nuts; |
| 2604 | |
| 2605 | nstio = GvIOn(ngv); |
| 2606 | fd = PerlSock_accept(PerlIO_fileno(IoIFP(gstio)), (struct sockaddr *) namebuf, &len); |
| 2607 | #if defined(OEMVS) |
| 2608 | if (len == 0) { |
| 2609 | /* Some platforms indicate zero length when an AF_UNIX client is |
| 2610 | * not bound. Simulate a non-zero-length sockaddr structure in |
| 2611 | * this case. */ |
| 2612 | namebuf[0] = 0; /* sun_len */ |
| 2613 | namebuf[1] = AF_UNIX; /* sun_family */ |
| 2614 | len = 2; |
| 2615 | } |
| 2616 | #endif |
| 2617 | |
| 2618 | if (fd < 0) |
| 2619 | goto badexit; |
| 2620 | if (IoIFP(nstio)) |
| 2621 | do_close(ngv, FALSE); |
| 2622 | IoIFP(nstio) = PerlIO_fdopen(fd, "r"SOCKET_OPEN_MODE); |
| 2623 | IoOFP(nstio) = PerlIO_fdopen(fd, "w"SOCKET_OPEN_MODE); |
| 2624 | IoTYPE(nstio) = IoTYPE_SOCKET; |
| 2625 | if (!IoIFP(nstio) || !IoOFP(nstio)) { |
| 2626 | if (IoIFP(nstio)) PerlIO_close(IoIFP(nstio)); |
| 2627 | if (IoOFP(nstio)) PerlIO_close(IoOFP(nstio)); |
| 2628 | if (!IoIFP(nstio) && !IoOFP(nstio)) PerlLIO_close(fd); |
| 2629 | goto badexit; |
| 2630 | } |
| 2631 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
| 2632 | fcntl(fd, F_SETFD, fd > PL_maxsysfd); /* ensure close-on-exec */ |
| 2633 | #endif |
| 2634 | |
| 2635 | #ifdef EPOC |
| 2636 | len = sizeof (struct sockaddr_in); /* EPOC somehow truncates info */ |
| 2637 | setbuf( IoIFP(nstio), NULL); /* EPOC gets confused about sockets */ |
| 2638 | #endif |
| 2639 | #ifdef __SCO_VERSION__ |
| 2640 | len = sizeof (struct sockaddr_in); /* OpenUNIX 8 somehow truncates info */ |
| 2641 | #endif |
| 2642 | |
| 2643 | PUSHp(namebuf, len); |
| 2644 | RETURN; |
| 2645 | |
| 2646 | nuts: |
| 2647 | if (ckWARN(WARN_CLOSED)) |
| 2648 | report_evil_fh(ggv, ggv ? GvIO(ggv) : 0, PL_op->op_type); |
| 2649 | SETERRNO(EBADF,SS_IVCHAN); |
| 2650 | |
| 2651 | badexit: |
| 2652 | RETPUSHUNDEF; |
| 2653 | |
| 2654 | #else |
| 2655 | DIE(aTHX_ PL_no_sock_func, "accept"); |
| 2656 | #endif |
| 2657 | } |
| 2658 | |
| 2659 | PP(pp_shutdown) |
| 2660 | { |
| 2661 | #ifdef HAS_SOCKET |
| 2662 | dVAR; dSP; dTARGET; |
| 2663 | const int how = POPi; |
| 2664 | GV * const gv = MUTABLE_GV(POPs); |
| 2665 | register IO * const io = GvIOn(gv); |
| 2666 | |
| 2667 | if (!io || !IoIFP(io)) |
| 2668 | goto nuts; |
| 2669 | |
| 2670 | PUSHi( PerlSock_shutdown(PerlIO_fileno(IoIFP(io)), how) >= 0 ); |
| 2671 | RETURN; |
| 2672 | |
| 2673 | nuts: |
| 2674 | if (ckWARN(WARN_CLOSED)) |
| 2675 | report_evil_fh(gv, io, PL_op->op_type); |
| 2676 | SETERRNO(EBADF,SS_IVCHAN); |
| 2677 | RETPUSHUNDEF; |
| 2678 | #else |
| 2679 | DIE(aTHX_ PL_no_sock_func, "shutdown"); |
| 2680 | #endif |
| 2681 | } |
| 2682 | |
| 2683 | PP(pp_ssockopt) |
| 2684 | { |
| 2685 | #ifdef HAS_SOCKET |
| 2686 | dVAR; dSP; |
| 2687 | const int optype = PL_op->op_type; |
| 2688 | SV * const sv = (optype == OP_GSOCKOPT) ? sv_2mortal(newSV(257)) : POPs; |
| 2689 | const unsigned int optname = (unsigned int) POPi; |
| 2690 | const unsigned int lvl = (unsigned int) POPi; |
| 2691 | GV * const gv = MUTABLE_GV(POPs); |
| 2692 | register IO * const io = GvIOn(gv); |
| 2693 | int fd; |
| 2694 | Sock_size_t len; |
| 2695 | |
| 2696 | if (!io || !IoIFP(io)) |
| 2697 | goto nuts; |
| 2698 | |
| 2699 | fd = PerlIO_fileno(IoIFP(io)); |
| 2700 | switch (optype) { |
| 2701 | case OP_GSOCKOPT: |
| 2702 | SvGROW(sv, 257); |
| 2703 | (void)SvPOK_only(sv); |
| 2704 | SvCUR_set(sv,256); |
| 2705 | *SvEND(sv) ='\0'; |
| 2706 | len = SvCUR(sv); |
| 2707 | if (PerlSock_getsockopt(fd, lvl, optname, SvPVX(sv), &len) < 0) |
| 2708 | goto nuts2; |
| 2709 | SvCUR_set(sv, len); |
| 2710 | *SvEND(sv) ='\0'; |
| 2711 | PUSHs(sv); |
| 2712 | break; |
| 2713 | case OP_SSOCKOPT: { |
| 2714 | #if defined(__SYMBIAN32__) |
| 2715 | # define SETSOCKOPT_OPTION_VALUE_T void * |
| 2716 | #else |
| 2717 | # define SETSOCKOPT_OPTION_VALUE_T const char * |
| 2718 | #endif |
| 2719 | /* XXX TODO: We need to have a proper type (a Configure probe, |
| 2720 | * etc.) for what the C headers think of the third argument of |
| 2721 | * setsockopt(), the option_value read-only buffer: is it |
| 2722 | * a "char *", or a "void *", const or not. Some compilers |
| 2723 | * don't take kindly to e.g. assuming that "char *" implicitly |
| 2724 | * promotes to a "void *", or to explicitly promoting/demoting |
| 2725 | * consts to non/vice versa. The "const void *" is the SUS |
| 2726 | * definition, but that does not fly everywhere for the above |
| 2727 | * reasons. */ |
| 2728 | SETSOCKOPT_OPTION_VALUE_T buf; |
| 2729 | int aint; |
| 2730 | if (SvPOKp(sv)) { |
| 2731 | STRLEN l; |
| 2732 | buf = (SETSOCKOPT_OPTION_VALUE_T) SvPV_const(sv, l); |
| 2733 | len = l; |
| 2734 | } |
| 2735 | else { |
| 2736 | aint = (int)SvIV(sv); |
| 2737 | buf = (SETSOCKOPT_OPTION_VALUE_T) &aint; |
| 2738 | len = sizeof(int); |
| 2739 | } |
| 2740 | if (PerlSock_setsockopt(fd, lvl, optname, buf, len) < 0) |
| 2741 | goto nuts2; |
| 2742 | PUSHs(&PL_sv_yes); |
| 2743 | } |
| 2744 | break; |
| 2745 | } |
| 2746 | RETURN; |
| 2747 | |
| 2748 | nuts: |
| 2749 | if (ckWARN(WARN_CLOSED)) |
| 2750 | report_evil_fh(gv, io, optype); |
| 2751 | SETERRNO(EBADF,SS_IVCHAN); |
| 2752 | nuts2: |
| 2753 | RETPUSHUNDEF; |
| 2754 | |
| 2755 | #else |
| 2756 | DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]); |
| 2757 | #endif |
| 2758 | } |
| 2759 | |
| 2760 | PP(pp_getpeername) |
| 2761 | { |
| 2762 | #ifdef HAS_SOCKET |
| 2763 | dVAR; dSP; |
| 2764 | const int optype = PL_op->op_type; |
| 2765 | GV * const gv = MUTABLE_GV(POPs); |
| 2766 | register IO * const io = GvIOn(gv); |
| 2767 | Sock_size_t len; |
| 2768 | SV *sv; |
| 2769 | int fd; |
| 2770 | |
| 2771 | if (!io || !IoIFP(io)) |
| 2772 | goto nuts; |
| 2773 | |
| 2774 | sv = sv_2mortal(newSV(257)); |
| 2775 | (void)SvPOK_only(sv); |
| 2776 | len = 256; |
| 2777 | SvCUR_set(sv, len); |
| 2778 | *SvEND(sv) ='\0'; |
| 2779 | fd = PerlIO_fileno(IoIFP(io)); |
| 2780 | switch (optype) { |
| 2781 | case OP_GETSOCKNAME: |
| 2782 | if (PerlSock_getsockname(fd, (struct sockaddr *)SvPVX(sv), &len) < 0) |
| 2783 | goto nuts2; |
| 2784 | break; |
| 2785 | case OP_GETPEERNAME: |
| 2786 | if (PerlSock_getpeername(fd, (struct sockaddr *)SvPVX(sv), &len) < 0) |
| 2787 | goto nuts2; |
| 2788 | #if defined(VMS_DO_SOCKETS) && defined (DECCRTL_SOCKETS) |
| 2789 | { |
| 2790 | 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"; |
| 2791 | /* If the call succeeded, make sure we don't have a zeroed port/addr */ |
| 2792 | if (((struct sockaddr *)SvPVX_const(sv))->sa_family == AF_INET && |
| 2793 | !memcmp(SvPVX_const(sv) + sizeof(u_short), nowhere, |
| 2794 | sizeof(u_short) + sizeof(struct in_addr))) { |
| 2795 | goto nuts2; |
| 2796 | } |
| 2797 | } |
| 2798 | #endif |
| 2799 | break; |
| 2800 | } |
| 2801 | #ifdef BOGUS_GETNAME_RETURN |
| 2802 | /* Interactive Unix, getpeername() and getsockname() |
| 2803 | does not return valid namelen */ |
| 2804 | if (len == BOGUS_GETNAME_RETURN) |
| 2805 | len = sizeof(struct sockaddr); |
| 2806 | #endif |
| 2807 | SvCUR_set(sv, len); |
| 2808 | *SvEND(sv) ='\0'; |
| 2809 | PUSHs(sv); |
| 2810 | RETURN; |
| 2811 | |
| 2812 | nuts: |
| 2813 | if (ckWARN(WARN_CLOSED)) |
| 2814 | report_evil_fh(gv, io, optype); |
| 2815 | SETERRNO(EBADF,SS_IVCHAN); |
| 2816 | nuts2: |
| 2817 | RETPUSHUNDEF; |
| 2818 | |
| 2819 | #else |
| 2820 | DIE(aTHX_ PL_no_sock_func, PL_op_desc[PL_op->op_type]); |
| 2821 | #endif |
| 2822 | } |
| 2823 | |
| 2824 | /* Stat calls. */ |
| 2825 | |
| 2826 | PP(pp_stat) |
| 2827 | { |
| 2828 | dVAR; |
| 2829 | dSP; |
| 2830 | GV *gv = NULL; |
| 2831 | IO *io; |
| 2832 | I32 gimme; |
| 2833 | I32 max = 13; |
| 2834 | |
| 2835 | if (PL_op->op_flags & OPf_REF) { |
| 2836 | gv = cGVOP_gv; |
| 2837 | if (PL_op->op_type == OP_LSTAT) { |
| 2838 | if (gv != PL_defgv) { |
| 2839 | do_fstat_warning_check: |
| 2840 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), |
| 2841 | "lstat() on filehandle %s", gv ? GvENAME(gv) : ""); |
| 2842 | } else if (PL_laststype != OP_LSTAT) |
| 2843 | Perl_croak(aTHX_ "The stat preceding lstat() wasn't an lstat"); |
| 2844 | } |
| 2845 | |
| 2846 | do_fstat: |
| 2847 | if (gv != PL_defgv) { |
| 2848 | PL_laststype = OP_STAT; |
| 2849 | PL_statgv = gv; |
| 2850 | sv_setpvs(PL_statname, ""); |
| 2851 | if(gv) { |
| 2852 | io = GvIO(gv); |
| 2853 | do_fstat_have_io: |
| 2854 | if (io) { |
| 2855 | if (IoIFP(io)) { |
| 2856 | PL_laststatval = |
| 2857 | PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache); |
| 2858 | } else if (IoDIRP(io)) { |
| 2859 | PL_laststatval = |
| 2860 | PerlLIO_fstat(my_dirfd(IoDIRP(io)), &PL_statcache); |
| 2861 | } else { |
| 2862 | PL_laststatval = -1; |
| 2863 | } |
| 2864 | } |
| 2865 | } |
| 2866 | } |
| 2867 | |
| 2868 | if (PL_laststatval < 0) { |
| 2869 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 2870 | report_evil_fh(gv, GvIO(gv), PL_op->op_type); |
| 2871 | max = 0; |
| 2872 | } |
| 2873 | } |
| 2874 | else { |
| 2875 | SV* const sv = POPs; |
| 2876 | if (isGV_with_GP(sv)) { |
| 2877 | gv = MUTABLE_GV(sv); |
| 2878 | goto do_fstat; |
| 2879 | } else if(SvROK(sv) && isGV_with_GP(SvRV(sv))) { |
| 2880 | gv = MUTABLE_GV(SvRV(sv)); |
| 2881 | if (PL_op->op_type == OP_LSTAT) |
| 2882 | goto do_fstat_warning_check; |
| 2883 | goto do_fstat; |
| 2884 | } else if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVIO) { |
| 2885 | io = MUTABLE_IO(SvRV(sv)); |
| 2886 | if (PL_op->op_type == OP_LSTAT) |
| 2887 | goto do_fstat_warning_check; |
| 2888 | goto do_fstat_have_io; |
| 2889 | } |
| 2890 | |
| 2891 | sv_setpv(PL_statname, SvPV_nolen_const(sv)); |
| 2892 | PL_statgv = NULL; |
| 2893 | PL_laststype = PL_op->op_type; |
| 2894 | if (PL_op->op_type == OP_LSTAT) |
| 2895 | PL_laststatval = PerlLIO_lstat(SvPV_nolen_const(PL_statname), &PL_statcache); |
| 2896 | else |
| 2897 | PL_laststatval = PerlLIO_stat(SvPV_nolen_const(PL_statname), &PL_statcache); |
| 2898 | if (PL_laststatval < 0) { |
| 2899 | if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), '\n')) |
| 2900 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "stat"); |
| 2901 | max = 0; |
| 2902 | } |
| 2903 | } |
| 2904 | |
| 2905 | gimme = GIMME_V; |
| 2906 | if (gimme != G_ARRAY) { |
| 2907 | if (gimme != G_VOID) |
| 2908 | XPUSHs(boolSV(max)); |
| 2909 | RETURN; |
| 2910 | } |
| 2911 | if (max) { |
| 2912 | EXTEND(SP, max); |
| 2913 | EXTEND_MORTAL(max); |
| 2914 | mPUSHi(PL_statcache.st_dev); |
| 2915 | mPUSHi(PL_statcache.st_ino); |
| 2916 | mPUSHu(PL_statcache.st_mode); |
| 2917 | mPUSHu(PL_statcache.st_nlink); |
| 2918 | #if Uid_t_size > IVSIZE |
| 2919 | mPUSHn(PL_statcache.st_uid); |
| 2920 | #else |
| 2921 | # if Uid_t_sign <= 0 |
| 2922 | mPUSHi(PL_statcache.st_uid); |
| 2923 | # else |
| 2924 | mPUSHu(PL_statcache.st_uid); |
| 2925 | # endif |
| 2926 | #endif |
| 2927 | #if Gid_t_size > IVSIZE |
| 2928 | mPUSHn(PL_statcache.st_gid); |
| 2929 | #else |
| 2930 | # if Gid_t_sign <= 0 |
| 2931 | mPUSHi(PL_statcache.st_gid); |
| 2932 | # else |
| 2933 | mPUSHu(PL_statcache.st_gid); |
| 2934 | # endif |
| 2935 | #endif |
| 2936 | #ifdef USE_STAT_RDEV |
| 2937 | mPUSHi(PL_statcache.st_rdev); |
| 2938 | #else |
| 2939 | PUSHs(newSVpvs_flags("", SVs_TEMP)); |
| 2940 | #endif |
| 2941 | #if Off_t_size > IVSIZE |
| 2942 | mPUSHn(PL_statcache.st_size); |
| 2943 | #else |
| 2944 | mPUSHi(PL_statcache.st_size); |
| 2945 | #endif |
| 2946 | #ifdef BIG_TIME |
| 2947 | mPUSHn(PL_statcache.st_atime); |
| 2948 | mPUSHn(PL_statcache.st_mtime); |
| 2949 | mPUSHn(PL_statcache.st_ctime); |
| 2950 | #else |
| 2951 | mPUSHi(PL_statcache.st_atime); |
| 2952 | mPUSHi(PL_statcache.st_mtime); |
| 2953 | mPUSHi(PL_statcache.st_ctime); |
| 2954 | #endif |
| 2955 | #ifdef USE_STAT_BLOCKS |
| 2956 | mPUSHu(PL_statcache.st_blksize); |
| 2957 | mPUSHu(PL_statcache.st_blocks); |
| 2958 | #else |
| 2959 | PUSHs(newSVpvs_flags("", SVs_TEMP)); |
| 2960 | PUSHs(newSVpvs_flags("", SVs_TEMP)); |
| 2961 | #endif |
| 2962 | } |
| 2963 | RETURN; |
| 2964 | } |
| 2965 | |
| 2966 | #define tryAMAGICftest_MG(chr) STMT_START { \ |
| 2967 | if ( (SvFLAGS(TOPs) & (SVf_ROK|SVs_GMG)) \ |
| 2968 | && S_try_amagic_ftest(aTHX_ chr)) \ |
| 2969 | return NORMAL; \ |
| 2970 | } STMT_END |
| 2971 | |
| 2972 | STATIC bool |
| 2973 | S_try_amagic_ftest(pTHX_ char chr) { |
| 2974 | dVAR; |
| 2975 | dSP; |
| 2976 | SV* const arg = TOPs; |
| 2977 | |
| 2978 | assert(chr != '?'); |
| 2979 | SvGETMAGIC(arg); |
| 2980 | |
| 2981 | if ((PL_op->op_flags & OPf_KIDS) |
| 2982 | && SvAMAGIC(TOPs)) |
| 2983 | { |
| 2984 | const char tmpchr = chr; |
| 2985 | const OP *next; |
| 2986 | SV * const tmpsv = amagic_call(arg, |
| 2987 | newSVpvn_flags(&tmpchr, 1, SVs_TEMP), |
| 2988 | ftest_amg, AMGf_unary); |
| 2989 | |
| 2990 | if (!tmpsv) |
| 2991 | return FALSE; |
| 2992 | |
| 2993 | SPAGAIN; |
| 2994 | |
| 2995 | next = PL_op->op_next; |
| 2996 | if (next->op_type >= OP_FTRREAD && |
| 2997 | next->op_type <= OP_FTBINARY && |
| 2998 | next->op_private & OPpFT_STACKED |
| 2999 | ) { |
| 3000 | if (SvTRUE(tmpsv)) |
| 3001 | /* leave the object alone */ |
| 3002 | return TRUE; |
| 3003 | } |
| 3004 | |
| 3005 | SETs(tmpsv); |
| 3006 | PUTBACK; |
| 3007 | return TRUE; |
| 3008 | } |
| 3009 | return FALSE; |
| 3010 | } |
| 3011 | |
| 3012 | |
| 3013 | /* This macro is used by the stacked filetest operators : |
| 3014 | * if the previous filetest failed, short-circuit and pass its value. |
| 3015 | * Else, discard it from the stack and continue. --rgs |
| 3016 | */ |
| 3017 | #define STACKED_FTEST_CHECK if (PL_op->op_private & OPpFT_STACKED) { \ |
| 3018 | if (!SvTRUE(TOPs)) { RETURN; } \ |
| 3019 | else { (void)POPs; PUTBACK; } \ |
| 3020 | } |
| 3021 | |
| 3022 | PP(pp_ftrread) |
| 3023 | { |
| 3024 | dVAR; |
| 3025 | I32 result; |
| 3026 | /* Not const, because things tweak this below. Not bool, because there's |
| 3027 | no guarantee that OPp_FT_ACCESS is <= CHAR_MAX */ |
| 3028 | #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS) |
| 3029 | I32 use_access = PL_op->op_private & OPpFT_ACCESS; |
| 3030 | /* Giving some sort of initial value silences compilers. */ |
| 3031 | # ifdef R_OK |
| 3032 | int access_mode = R_OK; |
| 3033 | # else |
| 3034 | int access_mode = 0; |
| 3035 | # endif |
| 3036 | #else |
| 3037 | /* access_mode is never used, but leaving use_access in makes the |
| 3038 | conditional compiling below much clearer. */ |
| 3039 | I32 use_access = 0; |
| 3040 | #endif |
| 3041 | int stat_mode = S_IRUSR; |
| 3042 | |
| 3043 | bool effective = FALSE; |
| 3044 | char opchar = '?'; |
| 3045 | dSP; |
| 3046 | |
| 3047 | switch (PL_op->op_type) { |
| 3048 | case OP_FTRREAD: opchar = 'R'; break; |
| 3049 | case OP_FTRWRITE: opchar = 'W'; break; |
| 3050 | case OP_FTREXEC: opchar = 'X'; break; |
| 3051 | case OP_FTEREAD: opchar = 'r'; break; |
| 3052 | case OP_FTEWRITE: opchar = 'w'; break; |
| 3053 | case OP_FTEEXEC: opchar = 'x'; break; |
| 3054 | } |
| 3055 | tryAMAGICftest_MG(opchar); |
| 3056 | |
| 3057 | STACKED_FTEST_CHECK; |
| 3058 | |
| 3059 | switch (PL_op->op_type) { |
| 3060 | case OP_FTRREAD: |
| 3061 | #if !(defined(HAS_ACCESS) && defined(R_OK)) |
| 3062 | use_access = 0; |
| 3063 | #endif |
| 3064 | break; |
| 3065 | |
| 3066 | case OP_FTRWRITE: |
| 3067 | #if defined(HAS_ACCESS) && defined(W_OK) |
| 3068 | access_mode = W_OK; |
| 3069 | #else |
| 3070 | use_access = 0; |
| 3071 | #endif |
| 3072 | stat_mode = S_IWUSR; |
| 3073 | break; |
| 3074 | |
| 3075 | case OP_FTREXEC: |
| 3076 | #if defined(HAS_ACCESS) && defined(X_OK) |
| 3077 | access_mode = X_OK; |
| 3078 | #else |
| 3079 | use_access = 0; |
| 3080 | #endif |
| 3081 | stat_mode = S_IXUSR; |
| 3082 | break; |
| 3083 | |
| 3084 | case OP_FTEWRITE: |
| 3085 | #ifdef PERL_EFF_ACCESS |
| 3086 | access_mode = W_OK; |
| 3087 | #endif |
| 3088 | stat_mode = S_IWUSR; |
| 3089 | /* fall through */ |
| 3090 | |
| 3091 | case OP_FTEREAD: |
| 3092 | #ifndef PERL_EFF_ACCESS |
| 3093 | use_access = 0; |
| 3094 | #endif |
| 3095 | effective = TRUE; |
| 3096 | break; |
| 3097 | |
| 3098 | case OP_FTEEXEC: |
| 3099 | #ifdef PERL_EFF_ACCESS |
| 3100 | access_mode = X_OK; |
| 3101 | #else |
| 3102 | use_access = 0; |
| 3103 | #endif |
| 3104 | stat_mode = S_IXUSR; |
| 3105 | effective = TRUE; |
| 3106 | break; |
| 3107 | } |
| 3108 | |
| 3109 | if (use_access) { |
| 3110 | #if defined(HAS_ACCESS) || defined (PERL_EFF_ACCESS) |
| 3111 | const char *name = POPpx; |
| 3112 | if (effective) { |
| 3113 | # ifdef PERL_EFF_ACCESS |
| 3114 | result = PERL_EFF_ACCESS(name, access_mode); |
| 3115 | # else |
| 3116 | DIE(aTHX_ "panic: attempt to call PERL_EFF_ACCESS in %s", |
| 3117 | OP_NAME(PL_op)); |
| 3118 | # endif |
| 3119 | } |
| 3120 | else { |
| 3121 | # ifdef HAS_ACCESS |
| 3122 | result = access(name, access_mode); |
| 3123 | # else |
| 3124 | DIE(aTHX_ "panic: attempt to call access() in %s", OP_NAME(PL_op)); |
| 3125 | # endif |
| 3126 | } |
| 3127 | if (result == 0) |
| 3128 | RETPUSHYES; |
| 3129 | if (result < 0) |
| 3130 | RETPUSHUNDEF; |
| 3131 | RETPUSHNO; |
| 3132 | #endif |
| 3133 | } |
| 3134 | |
| 3135 | result = my_stat_flags(0); |
| 3136 | SPAGAIN; |
| 3137 | if (result < 0) |
| 3138 | RETPUSHUNDEF; |
| 3139 | if (cando(stat_mode, effective, &PL_statcache)) |
| 3140 | RETPUSHYES; |
| 3141 | RETPUSHNO; |
| 3142 | } |
| 3143 | |
| 3144 | PP(pp_ftis) |
| 3145 | { |
| 3146 | dVAR; |
| 3147 | I32 result; |
| 3148 | const int op_type = PL_op->op_type; |
| 3149 | char opchar = '?'; |
| 3150 | dSP; |
| 3151 | |
| 3152 | switch (op_type) { |
| 3153 | case OP_FTIS: opchar = 'e'; break; |
| 3154 | case OP_FTSIZE: opchar = 's'; break; |
| 3155 | case OP_FTMTIME: opchar = 'M'; break; |
| 3156 | case OP_FTCTIME: opchar = 'C'; break; |
| 3157 | case OP_FTATIME: opchar = 'A'; break; |
| 3158 | } |
| 3159 | tryAMAGICftest_MG(opchar); |
| 3160 | |
| 3161 | STACKED_FTEST_CHECK; |
| 3162 | |
| 3163 | result = my_stat_flags(0); |
| 3164 | SPAGAIN; |
| 3165 | if (result < 0) |
| 3166 | RETPUSHUNDEF; |
| 3167 | if (op_type == OP_FTIS) |
| 3168 | RETPUSHYES; |
| 3169 | { |
| 3170 | /* You can't dTARGET inside OP_FTIS, because you'll get |
| 3171 | "panic: pad_sv po" - the op is not flagged to have a target. */ |
| 3172 | dTARGET; |
| 3173 | switch (op_type) { |
| 3174 | case OP_FTSIZE: |
| 3175 | #if Off_t_size > IVSIZE |
| 3176 | PUSHn(PL_statcache.st_size); |
| 3177 | #else |
| 3178 | PUSHi(PL_statcache.st_size); |
| 3179 | #endif |
| 3180 | break; |
| 3181 | case OP_FTMTIME: |
| 3182 | PUSHn( (((NV)PL_basetime - PL_statcache.st_mtime)) / 86400.0 ); |
| 3183 | break; |
| 3184 | case OP_FTATIME: |
| 3185 | PUSHn( (((NV)PL_basetime - PL_statcache.st_atime)) / 86400.0 ); |
| 3186 | break; |
| 3187 | case OP_FTCTIME: |
| 3188 | PUSHn( (((NV)PL_basetime - PL_statcache.st_ctime)) / 86400.0 ); |
| 3189 | break; |
| 3190 | } |
| 3191 | } |
| 3192 | RETURN; |
| 3193 | } |
| 3194 | |
| 3195 | PP(pp_ftrowned) |
| 3196 | { |
| 3197 | dVAR; |
| 3198 | I32 result; |
| 3199 | char opchar = '?'; |
| 3200 | dSP; |
| 3201 | |
| 3202 | switch (PL_op->op_type) { |
| 3203 | case OP_FTROWNED: opchar = 'O'; break; |
| 3204 | case OP_FTEOWNED: opchar = 'o'; break; |
| 3205 | case OP_FTZERO: opchar = 'z'; break; |
| 3206 | case OP_FTSOCK: opchar = 'S'; break; |
| 3207 | case OP_FTCHR: opchar = 'c'; break; |
| 3208 | case OP_FTBLK: opchar = 'b'; break; |
| 3209 | case OP_FTFILE: opchar = 'f'; break; |
| 3210 | case OP_FTDIR: opchar = 'd'; break; |
| 3211 | case OP_FTPIPE: opchar = 'p'; break; |
| 3212 | case OP_FTSUID: opchar = 'u'; break; |
| 3213 | case OP_FTSGID: opchar = 'g'; break; |
| 3214 | case OP_FTSVTX: opchar = 'k'; break; |
| 3215 | } |
| 3216 | tryAMAGICftest_MG(opchar); |
| 3217 | |
| 3218 | STACKED_FTEST_CHECK; |
| 3219 | |
| 3220 | /* I believe that all these three are likely to be defined on most every |
| 3221 | system these days. */ |
| 3222 | #ifndef S_ISUID |
| 3223 | if(PL_op->op_type == OP_FTSUID) { |
| 3224 | if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0) |
| 3225 | (void) POPs; |
| 3226 | RETPUSHNO; |
| 3227 | } |
| 3228 | #endif |
| 3229 | #ifndef S_ISGID |
| 3230 | if(PL_op->op_type == OP_FTSGID) { |
| 3231 | if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0) |
| 3232 | (void) POPs; |
| 3233 | RETPUSHNO; |
| 3234 | } |
| 3235 | #endif |
| 3236 | #ifndef S_ISVTX |
| 3237 | if(PL_op->op_type == OP_FTSVTX) { |
| 3238 | if ((PL_op->op_flags & OPf_REF) == 0 && (PL_op->op_private & OPpFT_STACKED) == 0) |
| 3239 | (void) POPs; |
| 3240 | RETPUSHNO; |
| 3241 | } |
| 3242 | #endif |
| 3243 | |
| 3244 | result = my_stat_flags(0); |
| 3245 | SPAGAIN; |
| 3246 | if (result < 0) |
| 3247 | RETPUSHUNDEF; |
| 3248 | switch (PL_op->op_type) { |
| 3249 | case OP_FTROWNED: |
| 3250 | if (PL_statcache.st_uid == PL_uid) |
| 3251 | RETPUSHYES; |
| 3252 | break; |
| 3253 | case OP_FTEOWNED: |
| 3254 | if (PL_statcache.st_uid == PL_euid) |
| 3255 | RETPUSHYES; |
| 3256 | break; |
| 3257 | case OP_FTZERO: |
| 3258 | if (PL_statcache.st_size == 0) |
| 3259 | RETPUSHYES; |
| 3260 | break; |
| 3261 | case OP_FTSOCK: |
| 3262 | if (S_ISSOCK(PL_statcache.st_mode)) |
| 3263 | RETPUSHYES; |
| 3264 | break; |
| 3265 | case OP_FTCHR: |
| 3266 | if (S_ISCHR(PL_statcache.st_mode)) |
| 3267 | RETPUSHYES; |
| 3268 | break; |
| 3269 | case OP_FTBLK: |
| 3270 | if (S_ISBLK(PL_statcache.st_mode)) |
| 3271 | RETPUSHYES; |
| 3272 | break; |
| 3273 | case OP_FTFILE: |
| 3274 | if (S_ISREG(PL_statcache.st_mode)) |
| 3275 | RETPUSHYES; |
| 3276 | break; |
| 3277 | case OP_FTDIR: |
| 3278 | if (S_ISDIR(PL_statcache.st_mode)) |
| 3279 | RETPUSHYES; |
| 3280 | break; |
| 3281 | case OP_FTPIPE: |
| 3282 | if (S_ISFIFO(PL_statcache.st_mode)) |
| 3283 | RETPUSHYES; |
| 3284 | break; |
| 3285 | #ifdef S_ISUID |
| 3286 | case OP_FTSUID: |
| 3287 | if (PL_statcache.st_mode & S_ISUID) |
| 3288 | RETPUSHYES; |
| 3289 | break; |
| 3290 | #endif |
| 3291 | #ifdef S_ISGID |
| 3292 | case OP_FTSGID: |
| 3293 | if (PL_statcache.st_mode & S_ISGID) |
| 3294 | RETPUSHYES; |
| 3295 | break; |
| 3296 | #endif |
| 3297 | #ifdef S_ISVTX |
| 3298 | case OP_FTSVTX: |
| 3299 | if (PL_statcache.st_mode & S_ISVTX) |
| 3300 | RETPUSHYES; |
| 3301 | break; |
| 3302 | #endif |
| 3303 | } |
| 3304 | RETPUSHNO; |
| 3305 | } |
| 3306 | |
| 3307 | PP(pp_ftlink) |
| 3308 | { |
| 3309 | dVAR; |
| 3310 | dSP; |
| 3311 | I32 result; |
| 3312 | |
| 3313 | tryAMAGICftest_MG('l'); |
| 3314 | result = my_lstat_flags(0); |
| 3315 | SPAGAIN; |
| 3316 | |
| 3317 | if (result < 0) |
| 3318 | RETPUSHUNDEF; |
| 3319 | if (S_ISLNK(PL_statcache.st_mode)) |
| 3320 | RETPUSHYES; |
| 3321 | RETPUSHNO; |
| 3322 | } |
| 3323 | |
| 3324 | PP(pp_fttty) |
| 3325 | { |
| 3326 | dVAR; |
| 3327 | dSP; |
| 3328 | int fd; |
| 3329 | GV *gv; |
| 3330 | SV *tmpsv = NULL; |
| 3331 | char *name = NULL; |
| 3332 | STRLEN namelen; |
| 3333 | |
| 3334 | tryAMAGICftest_MG('t'); |
| 3335 | |
| 3336 | STACKED_FTEST_CHECK; |
| 3337 | |
| 3338 | if (PL_op->op_flags & OPf_REF) |
| 3339 | gv = cGVOP_gv; |
| 3340 | else if (isGV_with_GP(TOPs)) |
| 3341 | gv = MUTABLE_GV(POPs); |
| 3342 | else if (SvROK(TOPs) && isGV(SvRV(TOPs))) |
| 3343 | gv = MUTABLE_GV(SvRV(POPs)); |
| 3344 | else { |
| 3345 | tmpsv = POPs; |
| 3346 | name = SvPV_nomg(tmpsv, namelen); |
| 3347 | gv = gv_fetchpvn_flags(name, namelen, SvUTF8(tmpsv), SVt_PVIO); |
| 3348 | } |
| 3349 | |
| 3350 | if (GvIO(gv) && IoIFP(GvIOp(gv))) |
| 3351 | fd = PerlIO_fileno(IoIFP(GvIOp(gv))); |
| 3352 | else if (tmpsv && SvOK(tmpsv)) { |
| 3353 | if (isDIGIT(*name)) |
| 3354 | fd = atoi(name); |
| 3355 | else |
| 3356 | RETPUSHUNDEF; |
| 3357 | } |
| 3358 | else |
| 3359 | RETPUSHUNDEF; |
| 3360 | if (PerlLIO_isatty(fd)) |
| 3361 | RETPUSHYES; |
| 3362 | RETPUSHNO; |
| 3363 | } |
| 3364 | |
| 3365 | #if defined(atarist) /* this will work with atariST. Configure will |
| 3366 | make guesses for other systems. */ |
| 3367 | # define FILE_base(f) ((f)->_base) |
| 3368 | # define FILE_ptr(f) ((f)->_ptr) |
| 3369 | # define FILE_cnt(f) ((f)->_cnt) |
| 3370 | # define FILE_bufsiz(f) ((f)->_cnt + ((f)->_ptr - (f)->_base)) |
| 3371 | #endif |
| 3372 | |
| 3373 | PP(pp_fttext) |
| 3374 | { |
| 3375 | dVAR; |
| 3376 | dSP; |
| 3377 | I32 i; |
| 3378 | I32 len; |
| 3379 | I32 odd = 0; |
| 3380 | STDCHAR tbuf[512]; |
| 3381 | register STDCHAR *s; |
| 3382 | register IO *io; |
| 3383 | register SV *sv; |
| 3384 | GV *gv; |
| 3385 | PerlIO *fp; |
| 3386 | |
| 3387 | tryAMAGICftest_MG(PL_op->op_type == OP_FTTEXT ? 'T' : 'B'); |
| 3388 | |
| 3389 | STACKED_FTEST_CHECK; |
| 3390 | |
| 3391 | if (PL_op->op_flags & OPf_REF) |
| 3392 | gv = cGVOP_gv; |
| 3393 | else if (isGV_with_GP(TOPs)) |
| 3394 | gv = MUTABLE_GV(POPs); |
| 3395 | else if (SvROK(TOPs) && isGV(SvRV(TOPs))) |
| 3396 | gv = MUTABLE_GV(SvRV(POPs)); |
| 3397 | else |
| 3398 | gv = NULL; |
| 3399 | |
| 3400 | if (gv) { |
| 3401 | EXTEND(SP, 1); |
| 3402 | if (gv == PL_defgv) { |
| 3403 | if (PL_statgv) |
| 3404 | io = GvIO(PL_statgv); |
| 3405 | else { |
| 3406 | sv = PL_statname; |
| 3407 | goto really_filename; |
| 3408 | } |
| 3409 | } |
| 3410 | else { |
| 3411 | PL_statgv = gv; |
| 3412 | PL_laststatval = -1; |
| 3413 | sv_setpvs(PL_statname, ""); |
| 3414 | io = GvIO(PL_statgv); |
| 3415 | } |
| 3416 | if (io && IoIFP(io)) { |
| 3417 | if (! PerlIO_has_base(IoIFP(io))) |
| 3418 | DIE(aTHX_ "-T and -B not implemented on filehandles"); |
| 3419 | PL_laststatval = PerlLIO_fstat(PerlIO_fileno(IoIFP(io)), &PL_statcache); |
| 3420 | if (PL_laststatval < 0) |
| 3421 | RETPUSHUNDEF; |
| 3422 | if (S_ISDIR(PL_statcache.st_mode)) { /* handle NFS glitch */ |
| 3423 | if (PL_op->op_type == OP_FTTEXT) |
| 3424 | RETPUSHNO; |
| 3425 | else |
| 3426 | RETPUSHYES; |
| 3427 | } |
| 3428 | if (PerlIO_get_cnt(IoIFP(io)) <= 0) { |
| 3429 | i = PerlIO_getc(IoIFP(io)); |
| 3430 | if (i != EOF) |
| 3431 | (void)PerlIO_ungetc(IoIFP(io),i); |
| 3432 | } |
| 3433 | if (PerlIO_get_cnt(IoIFP(io)) <= 0) /* null file is anything */ |
| 3434 | RETPUSHYES; |
| 3435 | len = PerlIO_get_bufsiz(IoIFP(io)); |
| 3436 | s = (STDCHAR *) PerlIO_get_base(IoIFP(io)); |
| 3437 | /* sfio can have large buffers - limit to 512 */ |
| 3438 | if (len > 512) |
| 3439 | len = 512; |
| 3440 | } |
| 3441 | else { |
| 3442 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) { |
| 3443 | gv = cGVOP_gv; |
| 3444 | report_evil_fh(gv, GvIO(gv), PL_op->op_type); |
| 3445 | } |
| 3446 | SETERRNO(EBADF,RMS_IFI); |
| 3447 | RETPUSHUNDEF; |
| 3448 | } |
| 3449 | } |
| 3450 | else { |
| 3451 | sv = POPs; |
| 3452 | really_filename: |
| 3453 | PL_statgv = NULL; |
| 3454 | PL_laststype = OP_STAT; |
| 3455 | sv_setpv(PL_statname, SvPV_nomg_const_nolen(sv)); |
| 3456 | if (!(fp = PerlIO_open(SvPVX_const(PL_statname), "r"))) { |
| 3457 | if (ckWARN(WARN_NEWLINE) && strchr(SvPV_nolen_const(PL_statname), |
| 3458 | '\n')) |
| 3459 | Perl_warner(aTHX_ packWARN(WARN_NEWLINE), PL_warn_nl, "open"); |
| 3460 | RETPUSHUNDEF; |
| 3461 | } |
| 3462 | PL_laststatval = PerlLIO_fstat(PerlIO_fileno(fp), &PL_statcache); |
| 3463 | if (PL_laststatval < 0) { |
| 3464 | (void)PerlIO_close(fp); |
| 3465 | RETPUSHUNDEF; |
| 3466 | } |
| 3467 | PerlIO_binmode(aTHX_ fp, '<', O_BINARY, NULL); |
| 3468 | len = PerlIO_read(fp, tbuf, sizeof(tbuf)); |
| 3469 | (void)PerlIO_close(fp); |
| 3470 | if (len <= 0) { |
| 3471 | if (S_ISDIR(PL_statcache.st_mode) && PL_op->op_type == OP_FTTEXT) |
| 3472 | RETPUSHNO; /* special case NFS directories */ |
| 3473 | RETPUSHYES; /* null file is anything */ |
| 3474 | } |
| 3475 | s = tbuf; |
| 3476 | } |
| 3477 | |
| 3478 | /* now scan s to look for textiness */ |
| 3479 | /* XXX ASCII dependent code */ |
| 3480 | |
| 3481 | #if defined(DOSISH) || defined(USEMYBINMODE) |
| 3482 | /* ignore trailing ^Z on short files */ |
| 3483 | if (len && len < (I32)sizeof(tbuf) && tbuf[len-1] == 26) |
| 3484 | --len; |
| 3485 | #endif |
| 3486 | |
| 3487 | for (i = 0; i < len; i++, s++) { |
| 3488 | if (!*s) { /* null never allowed in text */ |
| 3489 | odd += len; |
| 3490 | break; |
| 3491 | } |
| 3492 | #ifdef EBCDIC |
| 3493 | else if (!(isPRINT(*s) || isSPACE(*s))) |
| 3494 | odd++; |
| 3495 | #else |
| 3496 | else if (*s & 128) { |
| 3497 | #ifdef USE_LOCALE |
| 3498 | if (IN_LOCALE_RUNTIME && isALPHA_LC(*s)) |
| 3499 | continue; |
| 3500 | #endif |
| 3501 | /* utf8 characters don't count as odd */ |
| 3502 | if (UTF8_IS_START(*s)) { |
| 3503 | int ulen = UTF8SKIP(s); |
| 3504 | if (ulen < len - i) { |
| 3505 | int j; |
| 3506 | for (j = 1; j < ulen; j++) { |
| 3507 | if (!UTF8_IS_CONTINUATION(s[j])) |
| 3508 | goto not_utf8; |
| 3509 | } |
| 3510 | --ulen; /* loop does extra increment */ |
| 3511 | s += ulen; |
| 3512 | i += ulen; |
| 3513 | continue; |
| 3514 | } |
| 3515 | } |
| 3516 | not_utf8: |
| 3517 | odd++; |
| 3518 | } |
| 3519 | else if (*s < 32 && |
| 3520 | *s != '\n' && *s != '\r' && *s != '\b' && |
| 3521 | *s != '\t' && *s != '\f' && *s != 27) |
| 3522 | odd++; |
| 3523 | #endif |
| 3524 | } |
| 3525 | |
| 3526 | if ((odd * 3 > len) == (PL_op->op_type == OP_FTTEXT)) /* allow 1/3 odd */ |
| 3527 | RETPUSHNO; |
| 3528 | else |
| 3529 | RETPUSHYES; |
| 3530 | } |
| 3531 | |
| 3532 | /* File calls. */ |
| 3533 | |
| 3534 | PP(pp_chdir) |
| 3535 | { |
| 3536 | dVAR; dSP; dTARGET; |
| 3537 | const char *tmps = NULL; |
| 3538 | GV *gv = NULL; |
| 3539 | |
| 3540 | if( MAXARG == 1 ) { |
| 3541 | SV * const sv = POPs; |
| 3542 | if (PL_op->op_flags & OPf_SPECIAL) { |
| 3543 | gv = gv_fetchsv(sv, 0, SVt_PVIO); |
| 3544 | } |
| 3545 | else if (isGV_with_GP(sv)) { |
| 3546 | gv = MUTABLE_GV(sv); |
| 3547 | } |
| 3548 | else if (SvROK(sv) && isGV_with_GP(SvRV(sv))) { |
| 3549 | gv = MUTABLE_GV(SvRV(sv)); |
| 3550 | } |
| 3551 | else { |
| 3552 | tmps = SvPV_nolen_const(sv); |
| 3553 | } |
| 3554 | } |
| 3555 | |
| 3556 | if( !gv && (!tmps || !*tmps) ) { |
| 3557 | HV * const table = GvHVn(PL_envgv); |
| 3558 | SV **svp; |
| 3559 | |
| 3560 | if ( (svp = hv_fetchs(table, "HOME", FALSE)) |
| 3561 | || (svp = hv_fetchs(table, "LOGDIR", FALSE)) |
| 3562 | #ifdef VMS |
| 3563 | || (svp = hv_fetchs(table, "SYS$LOGIN", FALSE)) |
| 3564 | #endif |
| 3565 | ) |
| 3566 | { |
| 3567 | if( MAXARG == 1 ) |
| 3568 | deprecate("chdir('') or chdir(undef) as chdir()"); |
| 3569 | tmps = SvPV_nolen_const(*svp); |
| 3570 | } |
| 3571 | else { |
| 3572 | PUSHi(0); |
| 3573 | TAINT_PROPER("chdir"); |
| 3574 | RETURN; |
| 3575 | } |
| 3576 | } |
| 3577 | |
| 3578 | TAINT_PROPER("chdir"); |
| 3579 | if (gv) { |
| 3580 | #ifdef HAS_FCHDIR |
| 3581 | IO* const io = GvIO(gv); |
| 3582 | if (io) { |
| 3583 | if (IoDIRP(io)) { |
| 3584 | PUSHi(fchdir(my_dirfd(IoDIRP(io))) >= 0); |
| 3585 | } else if (IoIFP(io)) { |
| 3586 | PUSHi(fchdir(PerlIO_fileno(IoIFP(io))) >= 0); |
| 3587 | } |
| 3588 | else { |
| 3589 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 3590 | report_evil_fh(gv, io, PL_op->op_type); |
| 3591 | SETERRNO(EBADF, RMS_IFI); |
| 3592 | PUSHi(0); |
| 3593 | } |
| 3594 | } |
| 3595 | else { |
| 3596 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
| 3597 | report_evil_fh(gv, io, PL_op->op_type); |
| 3598 | SETERRNO(EBADF,RMS_IFI); |
| 3599 | PUSHi(0); |
| 3600 | } |
| 3601 | #else |
| 3602 | DIE(aTHX_ PL_no_func, "fchdir"); |
| 3603 | #endif |
| 3604 | } |
| 3605 | else |
| 3606 | PUSHi( PerlDir_chdir(tmps) >= 0 ); |
| 3607 | #ifdef VMS |
| 3608 | /* Clear the DEFAULT element of ENV so we'll get the new value |
| 3609 | * in the future. */ |
| 3610 | hv_delete(GvHVn(PL_envgv),"DEFAULT",7,G_DISCARD); |
| 3611 | #endif |
| 3612 | RETURN; |
| 3613 | } |
| 3614 | |
| 3615 | PP(pp_chown) |
| 3616 | { |
| 3617 | dVAR; dSP; dMARK; dTARGET; |
| 3618 | const I32 value = (I32)apply(PL_op->op_type, MARK, SP); |
| 3619 | |
| 3620 | SP = MARK; |
| 3621 | XPUSHi(value); |
| 3622 | RETURN; |
| 3623 | } |
| 3624 | |
| 3625 | PP(pp_chroot) |
| 3626 | { |
| 3627 | #ifdef HAS_CHROOT |
| 3628 | dVAR; dSP; dTARGET; |
| 3629 | char * const tmps = POPpx; |
| 3630 | TAINT_PROPER("chroot"); |
| 3631 | PUSHi( chroot(tmps) >= 0 ); |
| 3632 | RETURN; |
| 3633 | #else |
| 3634 | DIE(aTHX_ PL_no_func, "chroot"); |
| 3635 | #endif |
| 3636 | } |
| 3637 | |
| 3638 | PP(pp_rename) |
| 3639 | { |
| 3640 | dVAR; dSP; dTARGET; |
| 3641 | int anum; |
| 3642 | const char * const tmps2 = POPpconstx; |
| 3643 | const char * const tmps = SvPV_nolen_const(TOPs); |
| 3644 | TAINT_PROPER("rename"); |
| 3645 | #ifdef HAS_RENAME |
| 3646 | anum = PerlLIO_rename(tmps, tmps2); |
| 3647 | #else |
| 3648 | if (!(anum = PerlLIO_stat(tmps, &PL_statbuf))) { |
| 3649 | if (same_dirent(tmps2, tmps)) /* can always rename to same name */ |
| 3650 | anum = 1; |
| 3651 | else { |
| 3652 | if (PL_euid || PerlLIO_stat(tmps2, &PL_statbuf) < 0 || !S_ISDIR(PL_statbuf.st_mode)) |
| 3653 | (void)UNLINK(tmps2); |
| 3654 | if (!(anum = link(tmps, tmps2))) |
| 3655 | anum = UNLINK(tmps); |
| 3656 | } |
| 3657 | } |
| 3658 | #endif |
| 3659 | SETi( anum >= 0 ); |
| 3660 | RETURN; |
| 3661 | } |
| 3662 | |
| 3663 | #if defined(HAS_LINK) || defined(HAS_SYMLINK) |
| 3664 | PP(pp_link) |
| 3665 | { |
| 3666 | dVAR; dSP; dTARGET; |
| 3667 | const int op_type = PL_op->op_type; |
| 3668 | int result; |
| 3669 | |
| 3670 | # ifndef HAS_LINK |
| 3671 | if (op_type == OP_LINK) |
| 3672 | DIE(aTHX_ PL_no_func, "link"); |
| 3673 | # endif |
| 3674 | # ifndef HAS_SYMLINK |
| 3675 | if (op_type == OP_SYMLINK) |
| 3676 | DIE(aTHX_ PL_no_func, "symlink"); |
| 3677 | # endif |
| 3678 | |
| 3679 | { |
| 3680 | const char * const tmps2 = POPpconstx; |
| 3681 | const char * const tmps = SvPV_nolen_const(TOPs); |
| 3682 | TAINT_PROPER(PL_op_desc[op_type]); |
| 3683 | result = |
| 3684 | # if defined(HAS_LINK) |
| 3685 | # if defined(HAS_SYMLINK) |
| 3686 | /* Both present - need to choose which. */ |
| 3687 | (op_type == OP_LINK) ? |
| 3688 | PerlLIO_link(tmps, tmps2) : symlink(tmps, tmps2); |
| 3689 | # else |
| 3690 | /* Only have link, so calls to pp_symlink will have DIE()d above. */ |
| 3691 | PerlLIO_link(tmps, tmps2); |
| 3692 | # endif |
| 3693 | # else |
| 3694 | # if defined(HAS_SYMLINK) |
| 3695 | /* Only have symlink, so calls to pp_link will have DIE()d above. */ |
| 3696 | symlink(tmps, tmps2); |
| 3697 | # endif |
| 3698 | # endif |
| 3699 | } |
| 3700 | |
| 3701 | SETi( result >= 0 ); |
| 3702 | RETURN; |
| 3703 | } |
| 3704 | #else |
| 3705 | PP(pp_link) |
| 3706 | { |
| 3707 | /* Have neither. */ |
| 3708 | DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]); |
| 3709 | } |
| 3710 | #endif |
| 3711 | |
| 3712 | PP(pp_readlink) |
| 3713 | { |
| 3714 | dVAR; |
| 3715 | dSP; |
| 3716 | #ifdef HAS_SYMLINK |
| 3717 | dTARGET; |
| 3718 | const char *tmps; |
| 3719 | char buf[MAXPATHLEN]; |
| 3720 | int len; |
| 3721 | |
| 3722 | #ifndef INCOMPLETE_TAINTS |
| 3723 | TAINT; |
| 3724 | #endif |
| 3725 | tmps = POPpconstx; |
| 3726 | len = readlink(tmps, buf, sizeof(buf) - 1); |
| 3727 | if (len < 0) |
| 3728 | RETPUSHUNDEF; |
| 3729 | PUSHp(buf, len); |
| 3730 | RETURN; |
| 3731 | #else |
| 3732 | EXTEND(SP, 1); |
| 3733 | RETSETUNDEF; /* just pretend it's a normal file */ |
| 3734 | #endif |
| 3735 | } |
| 3736 | |
| 3737 | #if !defined(HAS_MKDIR) || !defined(HAS_RMDIR) |
| 3738 | STATIC int |
| 3739 | S_dooneliner(pTHX_ const char *cmd, const char *filename) |
| 3740 | { |
| 3741 | char * const save_filename = filename; |
| 3742 | char *cmdline; |
| 3743 | char *s; |
| 3744 | PerlIO *myfp; |
| 3745 | int anum = 1; |
| 3746 | Size_t size = strlen(cmd) + (strlen(filename) * 2) + 10; |
| 3747 | |
| 3748 | PERL_ARGS_ASSERT_DOONELINER; |
| 3749 | |
| 3750 | Newx(cmdline, size, char); |
| 3751 | my_strlcpy(cmdline, cmd, size); |
| 3752 | my_strlcat(cmdline, " ", size); |
| 3753 | for (s = cmdline + strlen(cmdline); *filename; ) { |
| 3754 | *s++ = '\\'; |
| 3755 | *s++ = *filename++; |
| 3756 | } |
| 3757 | if (s - cmdline < size) |
| 3758 | my_strlcpy(s, " 2>&1", size - (s - cmdline)); |
| 3759 | myfp = PerlProc_popen(cmdline, "r"); |
| 3760 | Safefree(cmdline); |
| 3761 | |
| 3762 | if (myfp) { |
| 3763 | SV * const tmpsv = sv_newmortal(); |
| 3764 | /* Need to save/restore 'PL_rs' ?? */ |
| 3765 | s = sv_gets(tmpsv, myfp, 0); |
| 3766 | (void)PerlProc_pclose(myfp); |
| 3767 | if (s != NULL) { |
| 3768 | int e; |
| 3769 | for (e = 1; |
| 3770 | #ifdef HAS_SYS_ERRLIST |
| 3771 | e <= sys_nerr |
| 3772 | #endif |
| 3773 | ; e++) |
| 3774 | { |
| 3775 | /* you don't see this */ |
| 3776 | const char * const errmsg = |
| 3777 | #ifdef HAS_SYS_ERRLIST |
| 3778 | sys_errlist[e] |
| 3779 | #else |
| 3780 | strerror(e) |
| 3781 | #endif |
| 3782 | ; |
| 3783 | if (!errmsg) |
| 3784 | break; |
| 3785 | if (instr(s, errmsg)) { |
| 3786 | SETERRNO(e,0); |
| 3787 | return 0; |
| 3788 | } |
| 3789 | } |
| 3790 | SETERRNO(0,0); |
| 3791 | #ifndef EACCES |
| 3792 | #define EACCES EPERM |
| 3793 | #endif |
| 3794 | if (instr(s, "cannot make")) |
| 3795 | SETERRNO(EEXIST,RMS_FEX); |
| 3796 | else if (instr(s, "existing file")) |
| 3797 | SETERRNO(EEXIST,RMS_FEX); |
| 3798 | else if (instr(s, "ile exists")) |
| 3799 | SETERRNO(EEXIST,RMS_FEX); |
| 3800 | else if (instr(s, "non-exist")) |
| 3801 | SETERRNO(ENOENT,RMS_FNF); |
| 3802 | else if (instr(s, "does not exist")) |
| 3803 | SETERRNO(ENOENT,RMS_FNF); |
| 3804 | else if (instr(s, "not empty")) |
| 3805 | SETERRNO(EBUSY,SS_DEVOFFLINE); |
| 3806 | else if (instr(s, "cannot access")) |
| 3807 | SETERRNO(EACCES,RMS_PRV); |
| 3808 | else |
| 3809 | SETERRNO(EPERM,RMS_PRV); |
| 3810 | return 0; |
| 3811 | } |
| 3812 | else { /* some mkdirs return no failure indication */ |
| 3813 | anum = (PerlLIO_stat(save_filename, &PL_statbuf) >= 0); |
| 3814 | if (PL_op->op_type == OP_RMDIR) |
| 3815 | anum = !anum; |
| 3816 | if (anum) |
| 3817 | SETERRNO(0,0); |
| 3818 | else |
| 3819 | SETERRNO(EACCES,RMS_PRV); /* a guess */ |
| 3820 | } |
| 3821 | return anum; |
| 3822 | } |
| 3823 | else |
| 3824 | return 0; |
| 3825 | } |
| 3826 | #endif |
| 3827 | |
| 3828 | /* This macro removes trailing slashes from a directory name. |
| 3829 | * Different operating and file systems take differently to |
| 3830 | * trailing slashes. According to POSIX 1003.1 1996 Edition |
| 3831 | * any number of trailing slashes should be allowed. |
| 3832 | * Thusly we snip them away so that even non-conforming |
| 3833 | * systems are happy. |
| 3834 | * We should probably do this "filtering" for all |
| 3835 | * the functions that expect (potentially) directory names: |
| 3836 | * -d, chdir(), chmod(), chown(), chroot(), fcntl()?, |
| 3837 | * (mkdir()), opendir(), rename(), rmdir(), stat(). --jhi */ |
| 3838 | |
| 3839 | #define TRIMSLASHES(tmps,len,copy) (tmps) = SvPV_const(TOPs, (len)); \ |
| 3840 | if ((len) > 1 && (tmps)[(len)-1] == '/') { \ |
| 3841 | do { \ |
| 3842 | (len)--; \ |
| 3843 | } while ((len) > 1 && (tmps)[(len)-1] == '/'); \ |
| 3844 | (tmps) = savepvn((tmps), (len)); \ |
| 3845 | (copy) = TRUE; \ |
| 3846 | } |
| 3847 | |
| 3848 | PP(pp_mkdir) |
| 3849 | { |
| 3850 | dVAR; dSP; dTARGET; |
| 3851 | STRLEN len; |
| 3852 | const char *tmps; |
| 3853 | bool copy = FALSE; |
| 3854 | const int mode = (MAXARG > 1) ? POPi : 0777; |
| 3855 | |
| 3856 | TRIMSLASHES(tmps,len,copy); |
| 3857 | |
| 3858 | TAINT_PROPER("mkdir"); |
| 3859 | #ifdef HAS_MKDIR |
| 3860 | SETi( PerlDir_mkdir(tmps, mode) >= 0 ); |
| 3861 | #else |
| 3862 | { |
| 3863 | int oldumask; |
| 3864 | SETi( dooneliner("mkdir", tmps) ); |
| 3865 | oldumask = PerlLIO_umask(0); |
| 3866 | PerlLIO_umask(oldumask); |
| 3867 | PerlLIO_chmod(tmps, (mode & ~oldumask) & 0777); |
| 3868 | } |
| 3869 | #endif |
| 3870 | if (copy) |
| 3871 | Safefree(tmps); |
| 3872 | RETURN; |
| 3873 | } |
| 3874 | |
| 3875 | PP(pp_rmdir) |
| 3876 | { |
| 3877 | dVAR; dSP; dTARGET; |
| 3878 | STRLEN len; |
| 3879 | const char *tmps; |
| 3880 | bool copy = FALSE; |
| 3881 | |
| 3882 | TRIMSLASHES(tmps,len,copy); |
| 3883 | TAINT_PROPER("rmdir"); |
| 3884 | #ifdef HAS_RMDIR |
| 3885 | SETi( PerlDir_rmdir(tmps) >= 0 ); |
| 3886 | #else |
| 3887 | SETi( dooneliner("rmdir", tmps) ); |
| 3888 | #endif |
| 3889 | if (copy) |
| 3890 | Safefree(tmps); |
| 3891 | RETURN; |
| 3892 | } |
| 3893 | |
| 3894 | /* Directory calls. */ |
| 3895 | |
| 3896 | PP(pp_open_dir) |
| 3897 | { |
| 3898 | #if defined(Direntry_t) && defined(HAS_READDIR) |
| 3899 | dVAR; dSP; |
| 3900 | const char * const dirname = POPpconstx; |
| 3901 | GV * const gv = MUTABLE_GV(POPs); |
| 3902 | register IO * const io = GvIOn(gv); |
| 3903 | |
| 3904 | if (!io) |
| 3905 | goto nope; |
| 3906 | |
| 3907 | if ((IoIFP(io) || IoOFP(io))) |
| 3908 | Perl_ck_warner_d(aTHX_ packWARN2(WARN_IO, WARN_DEPRECATED), |
| 3909 | "Opening filehandle %s also as a directory", |
| 3910 | GvENAME(gv)); |
| 3911 | if (IoDIRP(io)) |
| 3912 | PerlDir_close(IoDIRP(io)); |
| 3913 | if (!(IoDIRP(io) = PerlDir_open(dirname))) |
| 3914 | goto nope; |
| 3915 | |
| 3916 | RETPUSHYES; |
| 3917 | nope: |
| 3918 | if (!errno) |
| 3919 | SETERRNO(EBADF,RMS_DIR); |
| 3920 | RETPUSHUNDEF; |
| 3921 | #else |
| 3922 | DIE(aTHX_ PL_no_dir_func, "opendir"); |
| 3923 | #endif |
| 3924 | } |
| 3925 | |
| 3926 | PP(pp_readdir) |
| 3927 | { |
| 3928 | #if !defined(Direntry_t) || !defined(HAS_READDIR) |
| 3929 | DIE(aTHX_ PL_no_dir_func, "readdir"); |
| 3930 | #else |
| 3931 | #if !defined(I_DIRENT) && !defined(VMS) |
| 3932 | Direntry_t *readdir (DIR *); |
| 3933 | #endif |
| 3934 | dVAR; |
| 3935 | dSP; |
| 3936 | |
| 3937 | SV *sv; |
| 3938 | const I32 gimme = GIMME; |
| 3939 | GV * const gv = MUTABLE_GV(POPs); |
| 3940 | register const Direntry_t *dp; |
| 3941 | register IO * const io = GvIOn(gv); |
| 3942 | |
| 3943 | if (!io || !IoDIRP(io)) { |
| 3944 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), |
| 3945 | "readdir() attempted on invalid dirhandle %s", GvENAME(gv)); |
| 3946 | goto nope; |
| 3947 | } |
| 3948 | |
| 3949 | do { |
| 3950 | dp = (Direntry_t *)PerlDir_read(IoDIRP(io)); |
| 3951 | if (!dp) |
| 3952 | break; |
| 3953 | #ifdef DIRNAMLEN |
| 3954 | sv = newSVpvn(dp->d_name, dp->d_namlen); |
| 3955 | #else |
| 3956 | sv = newSVpv(dp->d_name, 0); |
| 3957 | #endif |
| 3958 | #ifndef INCOMPLETE_TAINTS |
| 3959 | if (!(IoFLAGS(io) & IOf_UNTAINT)) |
| 3960 | SvTAINTED_on(sv); |
| 3961 | #endif |
| 3962 | mXPUSHs(sv); |
| 3963 | } while (gimme == G_ARRAY); |
| 3964 | |
| 3965 | if (!dp && gimme != G_ARRAY) |
| 3966 | goto nope; |
| 3967 | |
| 3968 | RETURN; |
| 3969 | |
| 3970 | nope: |
| 3971 | if (!errno) |
| 3972 | SETERRNO(EBADF,RMS_ISI); |
| 3973 | if (GIMME == G_ARRAY) |
| 3974 | RETURN; |
| 3975 | else |
| 3976 | RETPUSHUNDEF; |
| 3977 | #endif |
| 3978 | } |
| 3979 | |
| 3980 | PP(pp_telldir) |
| 3981 | { |
| 3982 | #if defined(HAS_TELLDIR) || defined(telldir) |
| 3983 | dVAR; dSP; dTARGET; |
| 3984 | /* XXX does _anyone_ need this? --AD 2/20/1998 */ |
| 3985 | /* XXX netbsd still seemed to. |
| 3986 | XXX HAS_TELLDIR_PROTO is new style, NEED_TELLDIR_PROTO is old style. |
| 3987 | --JHI 1999-Feb-02 */ |
| 3988 | # if !defined(HAS_TELLDIR_PROTO) || defined(NEED_TELLDIR_PROTO) |
| 3989 | long telldir (DIR *); |
| 3990 | # endif |
| 3991 | GV * const gv = MUTABLE_GV(POPs); |
| 3992 | register IO * const io = GvIOn(gv); |
| 3993 | |
| 3994 | if (!io || !IoDIRP(io)) { |
| 3995 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), |
| 3996 | "telldir() attempted on invalid dirhandle %s", GvENAME(gv)); |
| 3997 | goto nope; |
| 3998 | } |
| 3999 | |
| 4000 | PUSHi( PerlDir_tell(IoDIRP(io)) ); |
| 4001 | RETURN; |
| 4002 | nope: |
| 4003 | if (!errno) |
| 4004 | SETERRNO(EBADF,RMS_ISI); |
| 4005 | RETPUSHUNDEF; |
| 4006 | #else |
| 4007 | DIE(aTHX_ PL_no_dir_func, "telldir"); |
| 4008 | #endif |
| 4009 | } |
| 4010 | |
| 4011 | PP(pp_seekdir) |
| 4012 | { |
| 4013 | #if defined(HAS_SEEKDIR) || defined(seekdir) |
| 4014 | dVAR; dSP; |
| 4015 | const long along = POPl; |
| 4016 | GV * const gv = MUTABLE_GV(POPs); |
| 4017 | register IO * const io = GvIOn(gv); |
| 4018 | |
| 4019 | if (!io || !IoDIRP(io)) { |
| 4020 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), |
| 4021 | "seekdir() attempted on invalid dirhandle %s", GvENAME(gv)); |
| 4022 | goto nope; |
| 4023 | } |
| 4024 | (void)PerlDir_seek(IoDIRP(io), along); |
| 4025 | |
| 4026 | RETPUSHYES; |
| 4027 | nope: |
| 4028 | if (!errno) |
| 4029 | SETERRNO(EBADF,RMS_ISI); |
| 4030 | RETPUSHUNDEF; |
| 4031 | #else |
| 4032 | DIE(aTHX_ PL_no_dir_func, "seekdir"); |
| 4033 | #endif |
| 4034 | } |
| 4035 | |
| 4036 | PP(pp_rewinddir) |
| 4037 | { |
| 4038 | #if defined(HAS_REWINDDIR) || defined(rewinddir) |
| 4039 | dVAR; dSP; |
| 4040 | GV * const gv = MUTABLE_GV(POPs); |
| 4041 | register IO * const io = GvIOn(gv); |
| 4042 | |
| 4043 | if (!io || !IoDIRP(io)) { |
| 4044 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), |
| 4045 | "rewinddir() attempted on invalid dirhandle %s", GvENAME(gv)); |
| 4046 | goto nope; |
| 4047 | } |
| 4048 | (void)PerlDir_rewind(IoDIRP(io)); |
| 4049 | RETPUSHYES; |
| 4050 | nope: |
| 4051 | if (!errno) |
| 4052 | SETERRNO(EBADF,RMS_ISI); |
| 4053 | RETPUSHUNDEF; |
| 4054 | #else |
| 4055 | DIE(aTHX_ PL_no_dir_func, "rewinddir"); |
| 4056 | #endif |
| 4057 | } |
| 4058 | |
| 4059 | PP(pp_closedir) |
| 4060 | { |
| 4061 | #if defined(Direntry_t) && defined(HAS_READDIR) |
| 4062 | dVAR; dSP; |
| 4063 | GV * const gv = MUTABLE_GV(POPs); |
| 4064 | register IO * const io = GvIOn(gv); |
| 4065 | |
| 4066 | if (!io || !IoDIRP(io)) { |
| 4067 | Perl_ck_warner(aTHX_ packWARN(WARN_IO), |
| 4068 | "closedir() attempted on invalid dirhandle %s", GvENAME(gv)); |
| 4069 | goto nope; |
| 4070 | } |
| 4071 | #ifdef VOID_CLOSEDIR |
| 4072 | PerlDir_close(IoDIRP(io)); |
| 4073 | #else |
| 4074 | if (PerlDir_close(IoDIRP(io)) < 0) { |
| 4075 | IoDIRP(io) = 0; /* Don't try to close again--coredumps on SysV */ |
| 4076 | goto nope; |
| 4077 | } |
| 4078 | #endif |
| 4079 | IoDIRP(io) = 0; |
| 4080 | |
| 4081 | RETPUSHYES; |
| 4082 | nope: |
| 4083 | if (!errno) |
| 4084 | SETERRNO(EBADF,RMS_IFI); |
| 4085 | RETPUSHUNDEF; |
| 4086 | #else |
| 4087 | DIE(aTHX_ PL_no_dir_func, "closedir"); |
| 4088 | #endif |
| 4089 | } |
| 4090 | |
| 4091 | /* Process control. */ |
| 4092 | |
| 4093 | PP(pp_fork) |
| 4094 | { |
| 4095 | #ifdef HAS_FORK |
| 4096 | dVAR; dSP; dTARGET; |
| 4097 | Pid_t childpid; |
| 4098 | |
| 4099 | EXTEND(SP, 1); |
| 4100 | PERL_FLUSHALL_FOR_CHILD; |
| 4101 | childpid = PerlProc_fork(); |
| 4102 | if (childpid < 0) |
| 4103 | RETSETUNDEF; |
| 4104 | if (!childpid) { |
| 4105 | GV * const tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV); |
| 4106 | if (tmpgv) { |
| 4107 | SvREADONLY_off(GvSV(tmpgv)); |
| 4108 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
| 4109 | SvREADONLY_on(GvSV(tmpgv)); |
| 4110 | } |
| 4111 | #ifdef THREADS_HAVE_PIDS |
| 4112 | PL_ppid = (IV)getppid(); |
| 4113 | #endif |
| 4114 | #ifdef PERL_USES_PL_PIDSTATUS |
| 4115 | hv_clear(PL_pidstatus); /* no kids, so don't wait for 'em */ |
| 4116 | #endif |
| 4117 | } |
| 4118 | PUSHi(childpid); |
| 4119 | RETURN; |
| 4120 | #else |
| 4121 | # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS) |
| 4122 | dSP; dTARGET; |
| 4123 | Pid_t childpid; |
| 4124 | |
| 4125 | EXTEND(SP, 1); |
| 4126 | PERL_FLUSHALL_FOR_CHILD; |
| 4127 | childpid = PerlProc_fork(); |
| 4128 | if (childpid == -1) |
| 4129 | RETSETUNDEF; |
| 4130 | PUSHi(childpid); |
| 4131 | RETURN; |
| 4132 | # else |
| 4133 | DIE(aTHX_ PL_no_func, "fork"); |
| 4134 | # endif |
| 4135 | #endif |
| 4136 | } |
| 4137 | |
| 4138 | PP(pp_wait) |
| 4139 | { |
| 4140 | #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__) |
| 4141 | dVAR; dSP; dTARGET; |
| 4142 | Pid_t childpid; |
| 4143 | int argflags; |
| 4144 | |
| 4145 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
| 4146 | childpid = wait4pid(-1, &argflags, 0); |
| 4147 | else { |
| 4148 | while ((childpid = wait4pid(-1, &argflags, 0)) == -1 && |
| 4149 | errno == EINTR) { |
| 4150 | PERL_ASYNC_CHECK(); |
| 4151 | } |
| 4152 | } |
| 4153 | # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS) |
| 4154 | /* 0 and -1 are both error returns (the former applies to WNOHANG case) */ |
| 4155 | STATUS_NATIVE_CHILD_SET((childpid && childpid != -1) ? argflags : -1); |
| 4156 | # else |
| 4157 | STATUS_NATIVE_CHILD_SET((childpid > 0) ? argflags : -1); |
| 4158 | # endif |
| 4159 | XPUSHi(childpid); |
| 4160 | RETURN; |
| 4161 | #else |
| 4162 | DIE(aTHX_ PL_no_func, "wait"); |
| 4163 | #endif |
| 4164 | } |
| 4165 | |
| 4166 | PP(pp_waitpid) |
| 4167 | { |
| 4168 | #if (!defined(DOSISH) || defined(OS2) || defined(WIN32)) && !defined(__LIBCATAMOUNT__) |
| 4169 | dVAR; dSP; dTARGET; |
| 4170 | const int optype = POPi; |
| 4171 | const Pid_t pid = TOPi; |
| 4172 | Pid_t result; |
| 4173 | int argflags; |
| 4174 | |
| 4175 | if (PL_signals & PERL_SIGNALS_UNSAFE_FLAG) |
| 4176 | result = wait4pid(pid, &argflags, optype); |
| 4177 | else { |
| 4178 | while ((result = wait4pid(pid, &argflags, optype)) == -1 && |
| 4179 | errno == EINTR) { |
| 4180 | PERL_ASYNC_CHECK(); |
| 4181 | } |
| 4182 | } |
| 4183 | # if defined(USE_ITHREADS) && defined(PERL_IMPLICIT_SYS) |
| 4184 | /* 0 and -1 are both error returns (the former applies to WNOHANG case) */ |
| 4185 | STATUS_NATIVE_CHILD_SET((result && result != -1) ? argflags : -1); |
| 4186 | # else |
| 4187 | STATUS_NATIVE_CHILD_SET((result > 0) ? argflags : -1); |
| 4188 | # endif |
| 4189 | SETi(result); |
| 4190 | RETURN; |
| 4191 | #else |
| 4192 | DIE(aTHX_ PL_no_func, "waitpid"); |
| 4193 | #endif |
| 4194 | } |
| 4195 | |
| 4196 | PP(pp_system) |
| 4197 | { |
| 4198 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 4199 | #if defined(__LIBCATAMOUNT__) |
| 4200 | PL_statusvalue = -1; |
| 4201 | SP = ORIGMARK; |
| 4202 | XPUSHi(-1); |
| 4203 | #else |
| 4204 | I32 value; |
| 4205 | int result; |
| 4206 | |
| 4207 | if (PL_tainting) { |
| 4208 | TAINT_ENV(); |
| 4209 | while (++MARK <= SP) { |
| 4210 | (void)SvPV_nolen_const(*MARK); /* stringify for taint check */ |
| 4211 | if (PL_tainted) |
| 4212 | break; |
| 4213 | } |
| 4214 | MARK = ORIGMARK; |
| 4215 | TAINT_PROPER("system"); |
| 4216 | } |
| 4217 | PERL_FLUSHALL_FOR_CHILD; |
| 4218 | #if (defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(OS2) || defined(PERL_MICRO) |
| 4219 | { |
| 4220 | Pid_t childpid; |
| 4221 | int pp[2]; |
| 4222 | I32 did_pipes = 0; |
| 4223 | |
| 4224 | if (PerlProc_pipe(pp) >= 0) |
| 4225 | did_pipes = 1; |
| 4226 | while ((childpid = PerlProc_fork()) == -1) { |
| 4227 | if (errno != EAGAIN) { |
| 4228 | value = -1; |
| 4229 | SP = ORIGMARK; |
| 4230 | XPUSHi(value); |
| 4231 | if (did_pipes) { |
| 4232 | PerlLIO_close(pp[0]); |
| 4233 | PerlLIO_close(pp[1]); |
| 4234 | } |
| 4235 | RETURN; |
| 4236 | } |
| 4237 | sleep(5); |
| 4238 | } |
| 4239 | if (childpid > 0) { |
| 4240 | Sigsave_t ihand,qhand; /* place to save signals during system() */ |
| 4241 | int status; |
| 4242 | |
| 4243 | if (did_pipes) |
| 4244 | PerlLIO_close(pp[1]); |
| 4245 | #ifndef PERL_MICRO |
| 4246 | rsignal_save(SIGINT, (Sighandler_t) SIG_IGN, &ihand); |
| 4247 | rsignal_save(SIGQUIT, (Sighandler_t) SIG_IGN, &qhand); |
| 4248 | #endif |
| 4249 | do { |
| 4250 | result = wait4pid(childpid, &status, 0); |
| 4251 | } while (result == -1 && errno == EINTR); |
| 4252 | #ifndef PERL_MICRO |
| 4253 | (void)rsignal_restore(SIGINT, &ihand); |
| 4254 | (void)rsignal_restore(SIGQUIT, &qhand); |
| 4255 | #endif |
| 4256 | STATUS_NATIVE_CHILD_SET(result == -1 ? -1 : status); |
| 4257 | do_execfree(); /* free any memory child malloced on fork */ |
| 4258 | SP = ORIGMARK; |
| 4259 | if (did_pipes) { |
| 4260 | int errkid; |
| 4261 | unsigned n = 0; |
| 4262 | SSize_t n1; |
| 4263 | |
| 4264 | while (n < sizeof(int)) { |
| 4265 | n1 = PerlLIO_read(pp[0], |
| 4266 | (void*)(((char*)&errkid)+n), |
| 4267 | (sizeof(int)) - n); |
| 4268 | if (n1 <= 0) |
| 4269 | break; |
| 4270 | n += n1; |
| 4271 | } |
| 4272 | PerlLIO_close(pp[0]); |
| 4273 | if (n) { /* Error */ |
| 4274 | if (n != sizeof(int)) |
| 4275 | DIE(aTHX_ "panic: kid popen errno read"); |
| 4276 | errno = errkid; /* Propagate errno from kid */ |
| 4277 | STATUS_NATIVE_CHILD_SET(-1); |
| 4278 | } |
| 4279 | } |
| 4280 | XPUSHi(STATUS_CURRENT); |
| 4281 | RETURN; |
| 4282 | } |
| 4283 | if (did_pipes) { |
| 4284 | PerlLIO_close(pp[0]); |
| 4285 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
| 4286 | fcntl(pp[1], F_SETFD, FD_CLOEXEC); |
| 4287 | #endif |
| 4288 | } |
| 4289 | if (PL_op->op_flags & OPf_STACKED) { |
| 4290 | SV * const really = *++MARK; |
| 4291 | value = (I32)do_aexec5(really, MARK, SP, pp[1], did_pipes); |
| 4292 | } |
| 4293 | else if (SP - MARK != 1) |
| 4294 | value = (I32)do_aexec5(NULL, MARK, SP, pp[1], did_pipes); |
| 4295 | else { |
| 4296 | value = (I32)do_exec3(SvPVx_nolen(sv_mortalcopy(*SP)), pp[1], did_pipes); |
| 4297 | } |
| 4298 | PerlProc__exit(-1); |
| 4299 | } |
| 4300 | #else /* ! FORK or VMS or OS/2 */ |
| 4301 | PL_statusvalue = 0; |
| 4302 | result = 0; |
| 4303 | if (PL_op->op_flags & OPf_STACKED) { |
| 4304 | SV * const really = *++MARK; |
| 4305 | # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS) |
| 4306 | value = (I32)do_aspawn(really, MARK, SP); |
| 4307 | # else |
| 4308 | value = (I32)do_aspawn(really, (void **)MARK, (void **)SP); |
| 4309 | # endif |
| 4310 | } |
| 4311 | else if (SP - MARK != 1) { |
| 4312 | # if defined(WIN32) || defined(OS2) || defined(__SYMBIAN32__) || defined(__VMS) |
| 4313 | value = (I32)do_aspawn(NULL, MARK, SP); |
| 4314 | # else |
| 4315 | value = (I32)do_aspawn(NULL, (void **)MARK, (void **)SP); |
| 4316 | # endif |
| 4317 | } |
| 4318 | else { |
| 4319 | value = (I32)do_spawn(SvPVx_nolen(sv_mortalcopy(*SP))); |
| 4320 | } |
| 4321 | if (PL_statusvalue == -1) /* hint that value must be returned as is */ |
| 4322 | result = 1; |
| 4323 | STATUS_NATIVE_CHILD_SET(value); |
| 4324 | do_execfree(); |
| 4325 | SP = ORIGMARK; |
| 4326 | XPUSHi(result ? value : STATUS_CURRENT); |
| 4327 | #endif /* !FORK or VMS or OS/2 */ |
| 4328 | #endif |
| 4329 | RETURN; |
| 4330 | } |
| 4331 | |
| 4332 | PP(pp_exec) |
| 4333 | { |
| 4334 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 4335 | I32 value; |
| 4336 | |
| 4337 | if (PL_tainting) { |
| 4338 | TAINT_ENV(); |
| 4339 | while (++MARK <= SP) { |
| 4340 | (void)SvPV_nolen_const(*MARK); /* stringify for taint check */ |
| 4341 | if (PL_tainted) |
| 4342 | break; |
| 4343 | } |
| 4344 | MARK = ORIGMARK; |
| 4345 | TAINT_PROPER("exec"); |
| 4346 | } |
| 4347 | PERL_FLUSHALL_FOR_CHILD; |
| 4348 | if (PL_op->op_flags & OPf_STACKED) { |
| 4349 | SV * const really = *++MARK; |
| 4350 | value = (I32)do_aexec(really, MARK, SP); |
| 4351 | } |
| 4352 | else if (SP - MARK != 1) |
| 4353 | #ifdef VMS |
| 4354 | value = (I32)vms_do_aexec(NULL, MARK, SP); |
| 4355 | #else |
| 4356 | # ifdef __OPEN_VM |
| 4357 | { |
| 4358 | (void ) do_aspawn(NULL, MARK, SP); |
| 4359 | value = 0; |
| 4360 | } |
| 4361 | # else |
| 4362 | value = (I32)do_aexec(NULL, MARK, SP); |
| 4363 | # endif |
| 4364 | #endif |
| 4365 | else { |
| 4366 | #ifdef VMS |
| 4367 | value = (I32)vms_do_exec(SvPVx_nolen(sv_mortalcopy(*SP))); |
| 4368 | #else |
| 4369 | # ifdef __OPEN_VM |
| 4370 | (void) do_spawn(SvPVx_nolen(sv_mortalcopy(*SP))); |
| 4371 | value = 0; |
| 4372 | # else |
| 4373 | value = (I32)do_exec(SvPVx_nolen(sv_mortalcopy(*SP))); |
| 4374 | # endif |
| 4375 | #endif |
| 4376 | } |
| 4377 | |
| 4378 | SP = ORIGMARK; |
| 4379 | XPUSHi(value); |
| 4380 | RETURN; |
| 4381 | } |
| 4382 | |
| 4383 | PP(pp_getppid) |
| 4384 | { |
| 4385 | #ifdef HAS_GETPPID |
| 4386 | dVAR; dSP; dTARGET; |
| 4387 | # ifdef THREADS_HAVE_PIDS |
| 4388 | if (PL_ppid != 1 && getppid() == 1) |
| 4389 | /* maybe the parent process has died. Refresh ppid cache */ |
| 4390 | PL_ppid = 1; |
| 4391 | XPUSHi( PL_ppid ); |
| 4392 | # else |
| 4393 | XPUSHi( getppid() ); |
| 4394 | # endif |
| 4395 | RETURN; |
| 4396 | #else |
| 4397 | DIE(aTHX_ PL_no_func, "getppid"); |
| 4398 | #endif |
| 4399 | } |
| 4400 | |
| 4401 | PP(pp_getpgrp) |
| 4402 | { |
| 4403 | #ifdef HAS_GETPGRP |
| 4404 | dVAR; dSP; dTARGET; |
| 4405 | Pid_t pgrp; |
| 4406 | const Pid_t pid = (MAXARG < 1) ? 0 : SvIVx(POPs); |
| 4407 | |
| 4408 | #ifdef BSD_GETPGRP |
| 4409 | pgrp = (I32)BSD_GETPGRP(pid); |
| 4410 | #else |
| 4411 | if (pid != 0 && pid != PerlProc_getpid()) |
| 4412 | DIE(aTHX_ "POSIX getpgrp can't take an argument"); |
| 4413 | pgrp = getpgrp(); |
| 4414 | #endif |
| 4415 | XPUSHi(pgrp); |
| 4416 | RETURN; |
| 4417 | #else |
| 4418 | DIE(aTHX_ PL_no_func, "getpgrp()"); |
| 4419 | #endif |
| 4420 | } |
| 4421 | |
| 4422 | PP(pp_setpgrp) |
| 4423 | { |
| 4424 | #ifdef HAS_SETPGRP |
| 4425 | dVAR; dSP; dTARGET; |
| 4426 | Pid_t pgrp; |
| 4427 | Pid_t pid; |
| 4428 | if (MAXARG < 2) { |
| 4429 | pgrp = 0; |
| 4430 | pid = 0; |
| 4431 | XPUSHi(-1); |
| 4432 | } |
| 4433 | else { |
| 4434 | pgrp = POPi; |
| 4435 | pid = TOPi; |
| 4436 | } |
| 4437 | |
| 4438 | TAINT_PROPER("setpgrp"); |
| 4439 | #ifdef BSD_SETPGRP |
| 4440 | SETi( BSD_SETPGRP(pid, pgrp) >= 0 ); |
| 4441 | #else |
| 4442 | if ((pgrp != 0 && pgrp != PerlProc_getpid()) |
| 4443 | || (pid != 0 && pid != PerlProc_getpid())) |
| 4444 | { |
| 4445 | DIE(aTHX_ "setpgrp can't take arguments"); |
| 4446 | } |
| 4447 | SETi( setpgrp() >= 0 ); |
| 4448 | #endif /* USE_BSDPGRP */ |
| 4449 | RETURN; |
| 4450 | #else |
| 4451 | DIE(aTHX_ PL_no_func, "setpgrp()"); |
| 4452 | #endif |
| 4453 | } |
| 4454 | |
| 4455 | #ifdef __GLIBC__ |
| 4456 | # define PRIORITY_WHICH_T(which) (__priority_which_t)which |
| 4457 | #else |
| 4458 | # define PRIORITY_WHICH_T(which) which |
| 4459 | #endif |
| 4460 | |
| 4461 | PP(pp_getpriority) |
| 4462 | { |
| 4463 | #ifdef HAS_GETPRIORITY |
| 4464 | dVAR; dSP; dTARGET; |
| 4465 | const int who = POPi; |
| 4466 | const int which = TOPi; |
| 4467 | SETi( getpriority(PRIORITY_WHICH_T(which), who) ); |
| 4468 | RETURN; |
| 4469 | #else |
| 4470 | DIE(aTHX_ PL_no_func, "getpriority()"); |
| 4471 | #endif |
| 4472 | } |
| 4473 | |
| 4474 | PP(pp_setpriority) |
| 4475 | { |
| 4476 | #ifdef HAS_SETPRIORITY |
| 4477 | dVAR; dSP; dTARGET; |
| 4478 | const int niceval = POPi; |
| 4479 | const int who = POPi; |
| 4480 | const int which = TOPi; |
| 4481 | TAINT_PROPER("setpriority"); |
| 4482 | SETi( setpriority(PRIORITY_WHICH_T(which), who, niceval) >= 0 ); |
| 4483 | RETURN; |
| 4484 | #else |
| 4485 | DIE(aTHX_ PL_no_func, "setpriority()"); |
| 4486 | #endif |
| 4487 | } |
| 4488 | |
| 4489 | #undef PRIORITY_WHICH_T |
| 4490 | |
| 4491 | /* Time calls. */ |
| 4492 | |
| 4493 | PP(pp_time) |
| 4494 | { |
| 4495 | dVAR; dSP; dTARGET; |
| 4496 | #ifdef BIG_TIME |
| 4497 | XPUSHn( time(NULL) ); |
| 4498 | #else |
| 4499 | XPUSHi( time(NULL) ); |
| 4500 | #endif |
| 4501 | RETURN; |
| 4502 | } |
| 4503 | |
| 4504 | PP(pp_tms) |
| 4505 | { |
| 4506 | #ifdef HAS_TIMES |
| 4507 | dVAR; |
| 4508 | dSP; |
| 4509 | EXTEND(SP, 4); |
| 4510 | #ifndef VMS |
| 4511 | (void)PerlProc_times(&PL_timesbuf); |
| 4512 | #else |
| 4513 | (void)PerlProc_times((tbuffer_t *)&PL_timesbuf); /* time.h uses different name for */ |
| 4514 | /* struct tms, though same data */ |
| 4515 | /* is returned. */ |
| 4516 | #endif |
| 4517 | |
| 4518 | mPUSHn(((NV)PL_timesbuf.tms_utime)/(NV)PL_clocktick); |
| 4519 | if (GIMME == G_ARRAY) { |
| 4520 | mPUSHn(((NV)PL_timesbuf.tms_stime)/(NV)PL_clocktick); |
| 4521 | mPUSHn(((NV)PL_timesbuf.tms_cutime)/(NV)PL_clocktick); |
| 4522 | mPUSHn(((NV)PL_timesbuf.tms_cstime)/(NV)PL_clocktick); |
| 4523 | } |
| 4524 | RETURN; |
| 4525 | #else |
| 4526 | # ifdef PERL_MICRO |
| 4527 | dSP; |
| 4528 | mPUSHn(0.0); |
| 4529 | EXTEND(SP, 4); |
| 4530 | if (GIMME == G_ARRAY) { |
| 4531 | mPUSHn(0.0); |
| 4532 | mPUSHn(0.0); |
| 4533 | mPUSHn(0.0); |
| 4534 | } |
| 4535 | RETURN; |
| 4536 | # else |
| 4537 | DIE(aTHX_ "times not implemented"); |
| 4538 | # endif |
| 4539 | #endif /* HAS_TIMES */ |
| 4540 | } |
| 4541 | |
| 4542 | /* The 32 bit int year limits the times we can represent to these |
| 4543 | boundaries with a few days wiggle room to account for time zone |
| 4544 | offsets |
| 4545 | */ |
| 4546 | /* Sat Jan 3 00:00:00 -2147481748 */ |
| 4547 | #define TIME_LOWER_BOUND -67768100567755200.0 |
| 4548 | /* Sun Dec 29 12:00:00 2147483647 */ |
| 4549 | #define TIME_UPPER_BOUND 67767976233316800.0 |
| 4550 | |
| 4551 | PP(pp_gmtime) |
| 4552 | { |
| 4553 | dVAR; |
| 4554 | dSP; |
| 4555 | Time64_T when; |
| 4556 | struct TM tmbuf; |
| 4557 | struct TM *err; |
| 4558 | const char *opname = PL_op->op_type == OP_LOCALTIME ? "localtime" : "gmtime"; |
| 4559 | static const char * const dayname[] = |
| 4560 | {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}; |
| 4561 | static const char * const monname[] = |
| 4562 | {"Jan", "Feb", "Mar", "Apr", "May", "Jun", |
| 4563 | "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; |
| 4564 | |
| 4565 | if (MAXARG < 1) { |
| 4566 | time_t now; |
| 4567 | (void)time(&now); |
| 4568 | when = (Time64_T)now; |
| 4569 | } |
| 4570 | else { |
| 4571 | NV input = Perl_floor(POPn); |
| 4572 | when = (Time64_T)input; |
| 4573 | if (when != input) { |
| 4574 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), |
| 4575 | "%s(%.0" NVff ") too large", opname, input); |
| 4576 | } |
| 4577 | } |
| 4578 | |
| 4579 | if ( TIME_LOWER_BOUND > when ) { |
| 4580 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), |
| 4581 | "%s(%.0" NVff ") too small", opname, when); |
| 4582 | err = NULL; |
| 4583 | } |
| 4584 | else if( when > TIME_UPPER_BOUND ) { |
| 4585 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), |
| 4586 | "%s(%.0" NVff ") too large", opname, when); |
| 4587 | err = NULL; |
| 4588 | } |
| 4589 | else { |
| 4590 | if (PL_op->op_type == OP_LOCALTIME) |
| 4591 | err = S_localtime64_r(&when, &tmbuf); |
| 4592 | else |
| 4593 | err = S_gmtime64_r(&when, &tmbuf); |
| 4594 | } |
| 4595 | |
| 4596 | if (err == NULL) { |
| 4597 | /* XXX %lld broken for quads */ |
| 4598 | Perl_ck_warner(aTHX_ packWARN(WARN_OVERFLOW), |
| 4599 | "%s(%.0" NVff ") failed", opname, when); |
| 4600 | } |
| 4601 | |
| 4602 | if (GIMME != G_ARRAY) { /* scalar context */ |
| 4603 | SV *tsv; |
| 4604 | /* XXX newSVpvf()'s %lld type is broken, so cheat with a double */ |
| 4605 | double year = (double)tmbuf.tm_year + 1900; |
| 4606 | |
| 4607 | EXTEND(SP, 1); |
| 4608 | EXTEND_MORTAL(1); |
| 4609 | if (err == NULL) |
| 4610 | RETPUSHUNDEF; |
| 4611 | |
| 4612 | tsv = Perl_newSVpvf(aTHX_ "%s %s %2d %02d:%02d:%02d %.0f", |
| 4613 | dayname[tmbuf.tm_wday], |
| 4614 | monname[tmbuf.tm_mon], |
| 4615 | tmbuf.tm_mday, |
| 4616 | tmbuf.tm_hour, |
| 4617 | tmbuf.tm_min, |
| 4618 | tmbuf.tm_sec, |
| 4619 | year); |
| 4620 | mPUSHs(tsv); |
| 4621 | } |
| 4622 | else { /* list context */ |
| 4623 | if ( err == NULL ) |
| 4624 | RETURN; |
| 4625 | |
| 4626 | EXTEND(SP, 9); |
| 4627 | EXTEND_MORTAL(9); |
| 4628 | mPUSHi(tmbuf.tm_sec); |
| 4629 | mPUSHi(tmbuf.tm_min); |
| 4630 | mPUSHi(tmbuf.tm_hour); |
| 4631 | mPUSHi(tmbuf.tm_mday); |
| 4632 | mPUSHi(tmbuf.tm_mon); |
| 4633 | mPUSHn(tmbuf.tm_year); |
| 4634 | mPUSHi(tmbuf.tm_wday); |
| 4635 | mPUSHi(tmbuf.tm_yday); |
| 4636 | mPUSHi(tmbuf.tm_isdst); |
| 4637 | } |
| 4638 | RETURN; |
| 4639 | } |
| 4640 | |
| 4641 | PP(pp_alarm) |
| 4642 | { |
| 4643 | #ifdef HAS_ALARM |
| 4644 | dVAR; dSP; dTARGET; |
| 4645 | int anum; |
| 4646 | anum = POPi; |
| 4647 | anum = alarm((unsigned int)anum); |
| 4648 | if (anum < 0) |
| 4649 | RETPUSHUNDEF; |
| 4650 | PUSHi(anum); |
| 4651 | RETURN; |
| 4652 | #else |
| 4653 | DIE(aTHX_ PL_no_func, "alarm"); |
| 4654 | #endif |
| 4655 | } |
| 4656 | |
| 4657 | PP(pp_sleep) |
| 4658 | { |
| 4659 | dVAR; dSP; dTARGET; |
| 4660 | I32 duration; |
| 4661 | Time_t lasttime; |
| 4662 | Time_t when; |
| 4663 | |
| 4664 | (void)time(&lasttime); |
| 4665 | if (MAXARG < 1) |
| 4666 | PerlProc_pause(); |
| 4667 | else { |
| 4668 | duration = POPi; |
| 4669 | PerlProc_sleep((unsigned int)duration); |
| 4670 | } |
| 4671 | (void)time(&when); |
| 4672 | XPUSHi(when - lasttime); |
| 4673 | RETURN; |
| 4674 | } |
| 4675 | |
| 4676 | /* Shared memory. */ |
| 4677 | /* Merged with some message passing. */ |
| 4678 | |
| 4679 | PP(pp_shmwrite) |
| 4680 | { |
| 4681 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
| 4682 | dVAR; dSP; dMARK; dTARGET; |
| 4683 | const int op_type = PL_op->op_type; |
| 4684 | I32 value; |
| 4685 | |
| 4686 | switch (op_type) { |
| 4687 | case OP_MSGSND: |
| 4688 | value = (I32)(do_msgsnd(MARK, SP) >= 0); |
| 4689 | break; |
| 4690 | case OP_MSGRCV: |
| 4691 | value = (I32)(do_msgrcv(MARK, SP) >= 0); |
| 4692 | break; |
| 4693 | case OP_SEMOP: |
| 4694 | value = (I32)(do_semop(MARK, SP) >= 0); |
| 4695 | break; |
| 4696 | default: |
| 4697 | value = (I32)(do_shmio(op_type, MARK, SP) >= 0); |
| 4698 | break; |
| 4699 | } |
| 4700 | |
| 4701 | SP = MARK; |
| 4702 | PUSHi(value); |
| 4703 | RETURN; |
| 4704 | #else |
| 4705 | return pp_semget(); |
| 4706 | #endif |
| 4707 | } |
| 4708 | |
| 4709 | /* Semaphores. */ |
| 4710 | |
| 4711 | PP(pp_semget) |
| 4712 | { |
| 4713 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
| 4714 | dVAR; dSP; dMARK; dTARGET; |
| 4715 | const int anum = do_ipcget(PL_op->op_type, MARK, SP); |
| 4716 | SP = MARK; |
| 4717 | if (anum == -1) |
| 4718 | RETPUSHUNDEF; |
| 4719 | PUSHi(anum); |
| 4720 | RETURN; |
| 4721 | #else |
| 4722 | DIE(aTHX_ "System V IPC is not implemented on this machine"); |
| 4723 | #endif |
| 4724 | } |
| 4725 | |
| 4726 | PP(pp_semctl) |
| 4727 | { |
| 4728 | #if defined(HAS_MSG) || defined(HAS_SEM) || defined(HAS_SHM) |
| 4729 | dVAR; dSP; dMARK; dTARGET; |
| 4730 | const int anum = do_ipcctl(PL_op->op_type, MARK, SP); |
| 4731 | SP = MARK; |
| 4732 | if (anum == -1) |
| 4733 | RETSETUNDEF; |
| 4734 | if (anum != 0) { |
| 4735 | PUSHi(anum); |
| 4736 | } |
| 4737 | else { |
| 4738 | PUSHp(zero_but_true, ZBTLEN); |
| 4739 | } |
| 4740 | RETURN; |
| 4741 | #else |
| 4742 | return pp_semget(); |
| 4743 | #endif |
| 4744 | } |
| 4745 | |
| 4746 | /* I can't const this further without getting warnings about the types of |
| 4747 | various arrays passed in from structures. */ |
| 4748 | static SV * |
| 4749 | S_space_join_names_mortal(pTHX_ char *const *array) |
| 4750 | { |
| 4751 | SV *target; |
| 4752 | |
| 4753 | PERL_ARGS_ASSERT_SPACE_JOIN_NAMES_MORTAL; |
| 4754 | |
| 4755 | if (array && *array) { |
| 4756 | target = newSVpvs_flags("", SVs_TEMP); |
| 4757 | while (1) { |
| 4758 | sv_catpv(target, *array); |
| 4759 | if (!*++array) |
| 4760 | break; |
| 4761 | sv_catpvs(target, " "); |
| 4762 | } |
| 4763 | } else { |
| 4764 | target = sv_mortalcopy(&PL_sv_no); |
| 4765 | } |
| 4766 | return target; |
| 4767 | } |
| 4768 | |
| 4769 | /* Get system info. */ |
| 4770 | |
| 4771 | PP(pp_ghostent) |
| 4772 | { |
| 4773 | #if defined(HAS_GETHOSTBYNAME) || defined(HAS_GETHOSTBYADDR) || defined(HAS_GETHOSTENT) |
| 4774 | dVAR; dSP; |
| 4775 | I32 which = PL_op->op_type; |
| 4776 | register char **elem; |
| 4777 | register SV *sv; |
| 4778 | #ifndef HAS_GETHOST_PROTOS /* XXX Do we need individual probes? */ |
| 4779 | struct hostent *gethostbyaddr(Netdb_host_t, Netdb_hlen_t, int); |
| 4780 | struct hostent *gethostbyname(Netdb_name_t); |
| 4781 | struct hostent *gethostent(void); |
| 4782 | #endif |
| 4783 | struct hostent *hent = NULL; |
| 4784 | unsigned long len; |
| 4785 | |
| 4786 | EXTEND(SP, 10); |
| 4787 | if (which == OP_GHBYNAME) { |
| 4788 | #ifdef HAS_GETHOSTBYNAME |
| 4789 | const char* const name = POPpbytex; |
| 4790 | hent = PerlSock_gethostbyname(name); |
| 4791 | #else |
| 4792 | DIE(aTHX_ PL_no_sock_func, "gethostbyname"); |
| 4793 | #endif |
| 4794 | } |
| 4795 | else if (which == OP_GHBYADDR) { |
| 4796 | #ifdef HAS_GETHOSTBYADDR |
| 4797 | const int addrtype = POPi; |
| 4798 | SV * const addrsv = POPs; |
| 4799 | STRLEN addrlen; |
| 4800 | const char *addr = (char *)SvPVbyte(addrsv, addrlen); |
| 4801 | |
| 4802 | hent = PerlSock_gethostbyaddr(addr, (Netdb_hlen_t) addrlen, addrtype); |
| 4803 | #else |
| 4804 | DIE(aTHX_ PL_no_sock_func, "gethostbyaddr"); |
| 4805 | #endif |
| 4806 | } |
| 4807 | else |
| 4808 | #ifdef HAS_GETHOSTENT |
| 4809 | hent = PerlSock_gethostent(); |
| 4810 | #else |
| 4811 | DIE(aTHX_ PL_no_sock_func, "gethostent"); |
| 4812 | #endif |
| 4813 | |
| 4814 | #ifdef HOST_NOT_FOUND |
| 4815 | if (!hent) { |
| 4816 | #ifdef USE_REENTRANT_API |
| 4817 | # ifdef USE_GETHOSTENT_ERRNO |
| 4818 | h_errno = PL_reentrant_buffer->_gethostent_errno; |
| 4819 | # endif |
| 4820 | #endif |
| 4821 | STATUS_UNIX_SET(h_errno); |
| 4822 | } |
| 4823 | #endif |
| 4824 | |
| 4825 | if (GIMME != G_ARRAY) { |
| 4826 | PUSHs(sv = sv_newmortal()); |
| 4827 | if (hent) { |
| 4828 | if (which == OP_GHBYNAME) { |
| 4829 | if (hent->h_addr) |
| 4830 | sv_setpvn(sv, hent->h_addr, hent->h_length); |
| 4831 | } |
| 4832 | else |
| 4833 | sv_setpv(sv, (char*)hent->h_name); |
| 4834 | } |
| 4835 | RETURN; |
| 4836 | } |
| 4837 | |
| 4838 | if (hent) { |
| 4839 | mPUSHs(newSVpv((char*)hent->h_name, 0)); |
| 4840 | PUSHs(space_join_names_mortal(hent->h_aliases)); |
| 4841 | mPUSHi(hent->h_addrtype); |
| 4842 | len = hent->h_length; |
| 4843 | mPUSHi(len); |
| 4844 | #ifdef h_addr |
| 4845 | for (elem = hent->h_addr_list; elem && *elem; elem++) { |
| 4846 | mXPUSHp(*elem, len); |
| 4847 | } |
| 4848 | #else |
| 4849 | if (hent->h_addr) |
| 4850 | mPUSHp(hent->h_addr, len); |
| 4851 | else |
| 4852 | PUSHs(sv_mortalcopy(&PL_sv_no)); |
| 4853 | #endif /* h_addr */ |
| 4854 | } |
| 4855 | RETURN; |
| 4856 | #else |
| 4857 | DIE(aTHX_ PL_no_sock_func, "gethostent"); |
| 4858 | #endif |
| 4859 | } |
| 4860 | |
| 4861 | PP(pp_gnetent) |
| 4862 | { |
| 4863 | #if defined(HAS_GETNETBYNAME) || defined(HAS_GETNETBYADDR) || defined(HAS_GETNETENT) |
| 4864 | dVAR; dSP; |
| 4865 | I32 which = PL_op->op_type; |
| 4866 | register SV *sv; |
| 4867 | #ifndef HAS_GETNET_PROTOS /* XXX Do we need individual probes? */ |
| 4868 | struct netent *getnetbyaddr(Netdb_net_t, int); |
| 4869 | struct netent *getnetbyname(Netdb_name_t); |
| 4870 | struct netent *getnetent(void); |
| 4871 | #endif |
| 4872 | struct netent *nent; |
| 4873 | |
| 4874 | if (which == OP_GNBYNAME){ |
| 4875 | #ifdef HAS_GETNETBYNAME |
| 4876 | const char * const name = POPpbytex; |
| 4877 | nent = PerlSock_getnetbyname(name); |
| 4878 | #else |
| 4879 | DIE(aTHX_ PL_no_sock_func, "getnetbyname"); |
| 4880 | #endif |
| 4881 | } |
| 4882 | else if (which == OP_GNBYADDR) { |
| 4883 | #ifdef HAS_GETNETBYADDR |
| 4884 | const int addrtype = POPi; |
| 4885 | const Netdb_net_t addr = (Netdb_net_t) (U32)POPu; |
| 4886 | nent = PerlSock_getnetbyaddr(addr, addrtype); |
| 4887 | #else |
| 4888 | DIE(aTHX_ PL_no_sock_func, "getnetbyaddr"); |
| 4889 | #endif |
| 4890 | } |
| 4891 | else |
| 4892 | #ifdef HAS_GETNETENT |
| 4893 | nent = PerlSock_getnetent(); |
| 4894 | #else |
| 4895 | DIE(aTHX_ PL_no_sock_func, "getnetent"); |
| 4896 | #endif |
| 4897 | |
| 4898 | #ifdef HOST_NOT_FOUND |
| 4899 | if (!nent) { |
| 4900 | #ifdef USE_REENTRANT_API |
| 4901 | # ifdef USE_GETNETENT_ERRNO |
| 4902 | h_errno = PL_reentrant_buffer->_getnetent_errno; |
| 4903 | # endif |
| 4904 | #endif |
| 4905 | STATUS_UNIX_SET(h_errno); |
| 4906 | } |
| 4907 | #endif |
| 4908 | |
| 4909 | EXTEND(SP, 4); |
| 4910 | if (GIMME != G_ARRAY) { |
| 4911 | PUSHs(sv = sv_newmortal()); |
| 4912 | if (nent) { |
| 4913 | if (which == OP_GNBYNAME) |
| 4914 | sv_setiv(sv, (IV)nent->n_net); |
| 4915 | else |
| 4916 | sv_setpv(sv, nent->n_name); |
| 4917 | } |
| 4918 | RETURN; |
| 4919 | } |
| 4920 | |
| 4921 | if (nent) { |
| 4922 | mPUSHs(newSVpv(nent->n_name, 0)); |
| 4923 | PUSHs(space_join_names_mortal(nent->n_aliases)); |
| 4924 | mPUSHi(nent->n_addrtype); |
| 4925 | mPUSHi(nent->n_net); |
| 4926 | } |
| 4927 | |
| 4928 | RETURN; |
| 4929 | #else |
| 4930 | DIE(aTHX_ PL_no_sock_func, "getnetent"); |
| 4931 | #endif |
| 4932 | } |
| 4933 | |
| 4934 | PP(pp_gprotoent) |
| 4935 | { |
| 4936 | #if defined(HAS_GETPROTOBYNAME) || defined(HAS_GETPROTOBYNUMBER) || defined(HAS_GETPROTOENT) |
| 4937 | dVAR; dSP; |
| 4938 | I32 which = PL_op->op_type; |
| 4939 | register SV *sv; |
| 4940 | #ifndef HAS_GETPROTO_PROTOS /* XXX Do we need individual probes? */ |
| 4941 | struct protoent *getprotobyname(Netdb_name_t); |
| 4942 | struct protoent *getprotobynumber(int); |
| 4943 | struct protoent *getprotoent(void); |
| 4944 | #endif |
| 4945 | struct protoent *pent; |
| 4946 | |
| 4947 | if (which == OP_GPBYNAME) { |
| 4948 | #ifdef HAS_GETPROTOBYNAME |
| 4949 | const char* const name = POPpbytex; |
| 4950 | pent = PerlSock_getprotobyname(name); |
| 4951 | #else |
| 4952 | DIE(aTHX_ PL_no_sock_func, "getprotobyname"); |
| 4953 | #endif |
| 4954 | } |
| 4955 | else if (which == OP_GPBYNUMBER) { |
| 4956 | #ifdef HAS_GETPROTOBYNUMBER |
| 4957 | const int number = POPi; |
| 4958 | pent = PerlSock_getprotobynumber(number); |
| 4959 | #else |
| 4960 | DIE(aTHX_ PL_no_sock_func, "getprotobynumber"); |
| 4961 | #endif |
| 4962 | } |
| 4963 | else |
| 4964 | #ifdef HAS_GETPROTOENT |
| 4965 | pent = PerlSock_getprotoent(); |
| 4966 | #else |
| 4967 | DIE(aTHX_ PL_no_sock_func, "getprotoent"); |
| 4968 | #endif |
| 4969 | |
| 4970 | EXTEND(SP, 3); |
| 4971 | if (GIMME != G_ARRAY) { |
| 4972 | PUSHs(sv = sv_newmortal()); |
| 4973 | if (pent) { |
| 4974 | if (which == OP_GPBYNAME) |
| 4975 | sv_setiv(sv, (IV)pent->p_proto); |
| 4976 | else |
| 4977 | sv_setpv(sv, pent->p_name); |
| 4978 | } |
| 4979 | RETURN; |
| 4980 | } |
| 4981 | |
| 4982 | if (pent) { |
| 4983 | mPUSHs(newSVpv(pent->p_name, 0)); |
| 4984 | PUSHs(space_join_names_mortal(pent->p_aliases)); |
| 4985 | mPUSHi(pent->p_proto); |
| 4986 | } |
| 4987 | |
| 4988 | RETURN; |
| 4989 | #else |
| 4990 | DIE(aTHX_ PL_no_sock_func, "getprotoent"); |
| 4991 | #endif |
| 4992 | } |
| 4993 | |
| 4994 | PP(pp_gservent) |
| 4995 | { |
| 4996 | #if defined(HAS_GETSERVBYNAME) || defined(HAS_GETSERVBYPORT) || defined(HAS_GETSERVENT) |
| 4997 | dVAR; dSP; |
| 4998 | I32 which = PL_op->op_type; |
| 4999 | register SV *sv; |
| 5000 | #ifndef HAS_GETSERV_PROTOS /* XXX Do we need individual probes? */ |
| 5001 | struct servent *getservbyname(Netdb_name_t, Netdb_name_t); |
| 5002 | struct servent *getservbyport(int, Netdb_name_t); |
| 5003 | struct servent *getservent(void); |
| 5004 | #endif |
| 5005 | struct servent *sent; |
| 5006 | |
| 5007 | if (which == OP_GSBYNAME) { |
| 5008 | #ifdef HAS_GETSERVBYNAME |
| 5009 | const char * const proto = POPpbytex; |
| 5010 | const char * const name = POPpbytex; |
| 5011 | sent = PerlSock_getservbyname(name, (proto && !*proto) ? NULL : proto); |
| 5012 | #else |
| 5013 | DIE(aTHX_ PL_no_sock_func, "getservbyname"); |
| 5014 | #endif |
| 5015 | } |
| 5016 | else if (which == OP_GSBYPORT) { |
| 5017 | #ifdef HAS_GETSERVBYPORT |
| 5018 | const char * const proto = POPpbytex; |
| 5019 | unsigned short port = (unsigned short)POPu; |
| 5020 | #ifdef HAS_HTONS |
| 5021 | port = PerlSock_htons(port); |
| 5022 | #endif |
| 5023 | sent = PerlSock_getservbyport(port, (proto && !*proto) ? NULL : proto); |
| 5024 | #else |
| 5025 | DIE(aTHX_ PL_no_sock_func, "getservbyport"); |
| 5026 | #endif |
| 5027 | } |
| 5028 | else |
| 5029 | #ifdef HAS_GETSERVENT |
| 5030 | sent = PerlSock_getservent(); |
| 5031 | #else |
| 5032 | DIE(aTHX_ PL_no_sock_func, "getservent"); |
| 5033 | #endif |
| 5034 | |
| 5035 | EXTEND(SP, 4); |
| 5036 | if (GIMME != G_ARRAY) { |
| 5037 | PUSHs(sv = sv_newmortal()); |
| 5038 | if (sent) { |
| 5039 | if (which == OP_GSBYNAME) { |
| 5040 | #ifdef HAS_NTOHS |
| 5041 | sv_setiv(sv, (IV)PerlSock_ntohs(sent->s_port)); |
| 5042 | #else |
| 5043 | sv_setiv(sv, (IV)(sent->s_port)); |
| 5044 | #endif |
| 5045 | } |
| 5046 | else |
| 5047 | sv_setpv(sv, sent->s_name); |
| 5048 | } |
| 5049 | RETURN; |
| 5050 | } |
| 5051 | |
| 5052 | if (sent) { |
| 5053 | mPUSHs(newSVpv(sent->s_name, 0)); |
| 5054 | PUSHs(space_join_names_mortal(sent->s_aliases)); |
| 5055 | #ifdef HAS_NTOHS |
| 5056 | mPUSHi(PerlSock_ntohs(sent->s_port)); |
| 5057 | #else |
| 5058 | mPUSHi(sent->s_port); |
| 5059 | #endif |
| 5060 | mPUSHs(newSVpv(sent->s_proto, 0)); |
| 5061 | } |
| 5062 | |
| 5063 | RETURN; |
| 5064 | #else |
| 5065 | DIE(aTHX_ PL_no_sock_func, "getservent"); |
| 5066 | #endif |
| 5067 | } |
| 5068 | |
| 5069 | PP(pp_shostent) |
| 5070 | { |
| 5071 | #ifdef HAS_SETHOSTENT |
| 5072 | dVAR; dSP; |
| 5073 | PerlSock_sethostent(TOPi); |
| 5074 | RETSETYES; |
| 5075 | #else |
| 5076 | DIE(aTHX_ PL_no_sock_func, "sethostent"); |
| 5077 | #endif |
| 5078 | } |
| 5079 | |
| 5080 | PP(pp_snetent) |
| 5081 | { |
| 5082 | #ifdef HAS_SETNETENT |
| 5083 | dVAR; dSP; |
| 5084 | (void)PerlSock_setnetent(TOPi); |
| 5085 | RETSETYES; |
| 5086 | #else |
| 5087 | DIE(aTHX_ PL_no_sock_func, "setnetent"); |
| 5088 | #endif |
| 5089 | } |
| 5090 | |
| 5091 | PP(pp_sprotoent) |
| 5092 | { |
| 5093 | #ifdef HAS_SETPROTOENT |
| 5094 | dVAR; dSP; |
| 5095 | (void)PerlSock_setprotoent(TOPi); |
| 5096 | RETSETYES; |
| 5097 | #else |
| 5098 | DIE(aTHX_ PL_no_sock_func, "setprotoent"); |
| 5099 | #endif |
| 5100 | } |
| 5101 | |
| 5102 | PP(pp_sservent) |
| 5103 | { |
| 5104 | #ifdef HAS_SETSERVENT |
| 5105 | dVAR; dSP; |
| 5106 | (void)PerlSock_setservent(TOPi); |
| 5107 | RETSETYES; |
| 5108 | #else |
| 5109 | DIE(aTHX_ PL_no_sock_func, "setservent"); |
| 5110 | #endif |
| 5111 | } |
| 5112 | |
| 5113 | PP(pp_ehostent) |
| 5114 | { |
| 5115 | #ifdef HAS_ENDHOSTENT |
| 5116 | dVAR; dSP; |
| 5117 | PerlSock_endhostent(); |
| 5118 | EXTEND(SP,1); |
| 5119 | RETPUSHYES; |
| 5120 | #else |
| 5121 | DIE(aTHX_ PL_no_sock_func, "endhostent"); |
| 5122 | #endif |
| 5123 | } |
| 5124 | |
| 5125 | PP(pp_enetent) |
| 5126 | { |
| 5127 | #ifdef HAS_ENDNETENT |
| 5128 | dVAR; dSP; |
| 5129 | PerlSock_endnetent(); |
| 5130 | EXTEND(SP,1); |
| 5131 | RETPUSHYES; |
| 5132 | #else |
| 5133 | DIE(aTHX_ PL_no_sock_func, "endnetent"); |
| 5134 | #endif |
| 5135 | } |
| 5136 | |
| 5137 | PP(pp_eprotoent) |
| 5138 | { |
| 5139 | #ifdef HAS_ENDPROTOENT |
| 5140 | dVAR; dSP; |
| 5141 | PerlSock_endprotoent(); |
| 5142 | EXTEND(SP,1); |
| 5143 | RETPUSHYES; |
| 5144 | #else |
| 5145 | DIE(aTHX_ PL_no_sock_func, "endprotoent"); |
| 5146 | #endif |
| 5147 | } |
| 5148 | |
| 5149 | PP(pp_eservent) |
| 5150 | { |
| 5151 | #ifdef HAS_ENDSERVENT |
| 5152 | dVAR; dSP; |
| 5153 | PerlSock_endservent(); |
| 5154 | EXTEND(SP,1); |
| 5155 | RETPUSHYES; |
| 5156 | #else |
| 5157 | DIE(aTHX_ PL_no_sock_func, "endservent"); |
| 5158 | #endif |
| 5159 | } |
| 5160 | |
| 5161 | PP(pp_gpwent) |
| 5162 | { |
| 5163 | #ifdef HAS_PASSWD |
| 5164 | dVAR; dSP; |
| 5165 | I32 which = PL_op->op_type; |
| 5166 | register SV *sv; |
| 5167 | struct passwd *pwent = NULL; |
| 5168 | /* |
| 5169 | * We currently support only the SysV getsp* shadow password interface. |
| 5170 | * The interface is declared in <shadow.h> and often one needs to link |
| 5171 | * with -lsecurity or some such. |
| 5172 | * This interface is used at least by Solaris, HP-UX, IRIX, and Linux. |
| 5173 | * (and SCO?) |
| 5174 | * |
| 5175 | * AIX getpwnam() is clever enough to return the encrypted password |
| 5176 | * only if the caller (euid?) is root. |
| 5177 | * |
| 5178 | * There are at least three other shadow password APIs. Many platforms |
| 5179 | * seem to contain more than one interface for accessing the shadow |
| 5180 | * password databases, possibly for compatibility reasons. |
| 5181 | * The getsp*() is by far he simplest one, the other two interfaces |
| 5182 | * are much more complicated, but also very similar to each other. |
| 5183 | * |
| 5184 | * <sys/types.h> |
| 5185 | * <sys/security.h> |
| 5186 | * <prot.h> |
| 5187 | * struct pr_passwd *getprpw*(); |
| 5188 | * The password is in |
| 5189 | * char getprpw*(...).ufld.fd_encrypt[] |
| 5190 | * Mention HAS_GETPRPWNAM here so that Configure probes for it. |
| 5191 | * |
| 5192 | * <sys/types.h> |
| 5193 | * <sys/security.h> |
| 5194 | * <prot.h> |
| 5195 | * struct es_passwd *getespw*(); |
| 5196 | * The password is in |
| 5197 | * char *(getespw*(...).ufld.fd_encrypt) |
| 5198 | * Mention HAS_GETESPWNAM here so that Configure probes for it. |
| 5199 | * |
| 5200 | * <userpw.h> (AIX) |
| 5201 | * struct userpw *getuserpw(); |
| 5202 | * The password is in |
| 5203 | * char *(getuserpw(...)).spw_upw_passwd |
| 5204 | * (but the de facto standard getpwnam() should work okay) |
| 5205 | * |
| 5206 | * Mention I_PROT here so that Configure probes for it. |
| 5207 | * |
| 5208 | * In HP-UX for getprpw*() the manual page claims that one should include |
| 5209 | * <hpsecurity.h> instead of <sys/security.h>, but that is not needed |
| 5210 | * if one includes <shadow.h> as that includes <hpsecurity.h>, |
| 5211 | * and pp_sys.c already includes <shadow.h> if there is such. |
| 5212 | * |
| 5213 | * Note that <sys/security.h> is already probed for, but currently |
| 5214 | * it is only included in special cases. |
| 5215 | * |
| 5216 | * In Digital UNIX/Tru64 if using the getespw*() (which seems to be |
| 5217 | * be preferred interface, even though also the getprpw*() interface |
| 5218 | * is available) one needs to link with -lsecurity -ldb -laud -lm. |
| 5219 | * One also needs to call set_auth_parameters() in main() before |
| 5220 | * doing anything else, whether one is using getespw*() or getprpw*(). |
| 5221 | * |
| 5222 | * Note that accessing the shadow databases can be magnitudes |
| 5223 | * slower than accessing the standard databases. |
| 5224 | * |
| 5225 | * --jhi |
| 5226 | */ |
| 5227 | |
| 5228 | # if defined(__CYGWIN__) && defined(USE_REENTRANT_API) |
| 5229 | /* Cygwin 1.5.3-1 has buggy getpwnam_r() and getpwuid_r(): |
| 5230 | * the pw_comment is left uninitialized. */ |
| 5231 | PL_reentrant_buffer->_pwent_struct.pw_comment = NULL; |
| 5232 | # endif |
| 5233 | |
| 5234 | switch (which) { |
| 5235 | case OP_GPWNAM: |
| 5236 | { |
| 5237 | const char* const name = POPpbytex; |
| 5238 | pwent = getpwnam(name); |
| 5239 | } |
| 5240 | break; |
| 5241 | case OP_GPWUID: |
| 5242 | { |
| 5243 | Uid_t uid = POPi; |
| 5244 | pwent = getpwuid(uid); |
| 5245 | } |
| 5246 | break; |
| 5247 | case OP_GPWENT: |
| 5248 | # ifdef HAS_GETPWENT |
| 5249 | pwent = getpwent(); |
| 5250 | #ifdef POSIX_BC /* In some cases pw_passwd has invalid addresses */ |
| 5251 | if (pwent) pwent = getpwnam(pwent->pw_name); |
| 5252 | #endif |
| 5253 | # else |
| 5254 | DIE(aTHX_ PL_no_func, "getpwent"); |
| 5255 | # endif |
| 5256 | break; |
| 5257 | } |
| 5258 | |
| 5259 | EXTEND(SP, 10); |
| 5260 | if (GIMME != G_ARRAY) { |
| 5261 | PUSHs(sv = sv_newmortal()); |
| 5262 | if (pwent) { |
| 5263 | if (which == OP_GPWNAM) |
| 5264 | # if Uid_t_sign <= 0 |
| 5265 | sv_setiv(sv, (IV)pwent->pw_uid); |
| 5266 | # else |
| 5267 | sv_setuv(sv, (UV)pwent->pw_uid); |
| 5268 | # endif |
| 5269 | else |
| 5270 | sv_setpv(sv, pwent->pw_name); |
| 5271 | } |
| 5272 | RETURN; |
| 5273 | } |
| 5274 | |
| 5275 | if (pwent) { |
| 5276 | mPUSHs(newSVpv(pwent->pw_name, 0)); |
| 5277 | |
| 5278 | sv = newSViv(0); |
| 5279 | mPUSHs(sv); |
| 5280 | /* If we have getspnam(), we try to dig up the shadow |
| 5281 | * password. If we are underprivileged, the shadow |
| 5282 | * interface will set the errno to EACCES or similar, |
| 5283 | * and return a null pointer. If this happens, we will |
| 5284 | * use the dummy password (usually "*" or "x") from the |
| 5285 | * standard password database. |
| 5286 | * |
| 5287 | * In theory we could skip the shadow call completely |
| 5288 | * if euid != 0 but in practice we cannot know which |
| 5289 | * security measures are guarding the shadow databases |
| 5290 | * on a random platform. |
| 5291 | * |
| 5292 | * Resist the urge to use additional shadow interfaces. |
| 5293 | * Divert the urge to writing an extension instead. |
| 5294 | * |
| 5295 | * --jhi */ |
| 5296 | /* Some AIX setups falsely(?) detect some getspnam(), which |
| 5297 | * has a different API than the Solaris/IRIX one. */ |
| 5298 | # if defined(HAS_GETSPNAM) && !defined(_AIX) |
| 5299 | { |
| 5300 | dSAVE_ERRNO; |
| 5301 | const struct spwd * const spwent = getspnam(pwent->pw_name); |
| 5302 | /* Save and restore errno so that |
| 5303 | * underprivileged attempts seem |
| 5304 | * to have never made the unsccessful |
| 5305 | * attempt to retrieve the shadow password. */ |
| 5306 | RESTORE_ERRNO; |
| 5307 | if (spwent && spwent->sp_pwdp) |
| 5308 | sv_setpv(sv, spwent->sp_pwdp); |
| 5309 | } |
| 5310 | # endif |
| 5311 | # ifdef PWPASSWD |
| 5312 | if (!SvPOK(sv)) /* Use the standard password, then. */ |
| 5313 | sv_setpv(sv, pwent->pw_passwd); |
| 5314 | # endif |
| 5315 | |
| 5316 | # ifndef INCOMPLETE_TAINTS |
| 5317 | /* passwd is tainted because user himself can diddle with it. |
| 5318 | * admittedly not much and in a very limited way, but nevertheless. */ |
| 5319 | SvTAINTED_on(sv); |
| 5320 | # endif |
| 5321 | |
| 5322 | # if Uid_t_sign <= 0 |
| 5323 | mPUSHi(pwent->pw_uid); |
| 5324 | # else |
| 5325 | mPUSHu(pwent->pw_uid); |
| 5326 | # endif |
| 5327 | |
| 5328 | # if Uid_t_sign <= 0 |
| 5329 | mPUSHi(pwent->pw_gid); |
| 5330 | # else |
| 5331 | mPUSHu(pwent->pw_gid); |
| 5332 | # endif |
| 5333 | /* pw_change, pw_quota, and pw_age are mutually exclusive-- |
| 5334 | * because of the poor interface of the Perl getpw*(), |
| 5335 | * not because there's some standard/convention saying so. |
| 5336 | * A better interface would have been to return a hash, |
| 5337 | * but we are accursed by our history, alas. --jhi. */ |
| 5338 | # ifdef PWCHANGE |
| 5339 | mPUSHi(pwent->pw_change); |
| 5340 | # else |
| 5341 | # ifdef PWQUOTA |
| 5342 | mPUSHi(pwent->pw_quota); |
| 5343 | # else |
| 5344 | # ifdef PWAGE |
| 5345 | mPUSHs(newSVpv(pwent->pw_age, 0)); |
| 5346 | # else |
| 5347 | /* I think that you can never get this compiled, but just in case. */ |
| 5348 | PUSHs(sv_mortalcopy(&PL_sv_no)); |
| 5349 | # endif |
| 5350 | # endif |
| 5351 | # endif |
| 5352 | |
| 5353 | /* pw_class and pw_comment are mutually exclusive--. |
| 5354 | * see the above note for pw_change, pw_quota, and pw_age. */ |
| 5355 | # ifdef PWCLASS |
| 5356 | mPUSHs(newSVpv(pwent->pw_class, 0)); |
| 5357 | # else |
| 5358 | # ifdef PWCOMMENT |
| 5359 | mPUSHs(newSVpv(pwent->pw_comment, 0)); |
| 5360 | # else |
| 5361 | /* I think that you can never get this compiled, but just in case. */ |
| 5362 | PUSHs(sv_mortalcopy(&PL_sv_no)); |
| 5363 | # endif |
| 5364 | # endif |
| 5365 | |
| 5366 | # ifdef PWGECOS |
| 5367 | PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_gecos, 0))); |
| 5368 | # else |
| 5369 | PUSHs(sv = sv_mortalcopy(&PL_sv_no)); |
| 5370 | # endif |
| 5371 | # ifndef INCOMPLETE_TAINTS |
| 5372 | /* pw_gecos is tainted because user himself can diddle with it. */ |
| 5373 | SvTAINTED_on(sv); |
| 5374 | # endif |
| 5375 | |
| 5376 | mPUSHs(newSVpv(pwent->pw_dir, 0)); |
| 5377 | |
| 5378 | PUSHs(sv = sv_2mortal(newSVpv(pwent->pw_shell, 0))); |
| 5379 | # ifndef INCOMPLETE_TAINTS |
| 5380 | /* pw_shell is tainted because user himself can diddle with it. */ |
| 5381 | SvTAINTED_on(sv); |
| 5382 | # endif |
| 5383 | |
| 5384 | # ifdef PWEXPIRE |
| 5385 | mPUSHi(pwent->pw_expire); |
| 5386 | # endif |
| 5387 | } |
| 5388 | RETURN; |
| 5389 | #else |
| 5390 | DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]); |
| 5391 | #endif |
| 5392 | } |
| 5393 | |
| 5394 | PP(pp_spwent) |
| 5395 | { |
| 5396 | #if defined(HAS_PASSWD) && defined(HAS_SETPWENT) |
| 5397 | dVAR; dSP; |
| 5398 | setpwent(); |
| 5399 | RETPUSHYES; |
| 5400 | #else |
| 5401 | DIE(aTHX_ PL_no_func, "setpwent"); |
| 5402 | #endif |
| 5403 | } |
| 5404 | |
| 5405 | PP(pp_epwent) |
| 5406 | { |
| 5407 | #if defined(HAS_PASSWD) && defined(HAS_ENDPWENT) |
| 5408 | dVAR; dSP; |
| 5409 | endpwent(); |
| 5410 | RETPUSHYES; |
| 5411 | #else |
| 5412 | DIE(aTHX_ PL_no_func, "endpwent"); |
| 5413 | #endif |
| 5414 | } |
| 5415 | |
| 5416 | PP(pp_ggrent) |
| 5417 | { |
| 5418 | #ifdef HAS_GROUP |
| 5419 | dVAR; dSP; |
| 5420 | const I32 which = PL_op->op_type; |
| 5421 | const struct group *grent; |
| 5422 | |
| 5423 | if (which == OP_GGRNAM) { |
| 5424 | const char* const name = POPpbytex; |
| 5425 | grent = (const struct group *)getgrnam(name); |
| 5426 | } |
| 5427 | else if (which == OP_GGRGID) { |
| 5428 | const Gid_t gid = POPi; |
| 5429 | grent = (const struct group *)getgrgid(gid); |
| 5430 | } |
| 5431 | else |
| 5432 | #ifdef HAS_GETGRENT |
| 5433 | grent = (struct group *)getgrent(); |
| 5434 | #else |
| 5435 | DIE(aTHX_ PL_no_func, "getgrent"); |
| 5436 | #endif |
| 5437 | |
| 5438 | EXTEND(SP, 4); |
| 5439 | if (GIMME != G_ARRAY) { |
| 5440 | SV * const sv = sv_newmortal(); |
| 5441 | |
| 5442 | PUSHs(sv); |
| 5443 | if (grent) { |
| 5444 | if (which == OP_GGRNAM) |
| 5445 | #if Gid_t_sign <= 0 |
| 5446 | sv_setiv(sv, (IV)grent->gr_gid); |
| 5447 | #else |
| 5448 | sv_setuv(sv, (UV)grent->gr_gid); |
| 5449 | #endif |
| 5450 | else |
| 5451 | sv_setpv(sv, grent->gr_name); |
| 5452 | } |
| 5453 | RETURN; |
| 5454 | } |
| 5455 | |
| 5456 | if (grent) { |
| 5457 | mPUSHs(newSVpv(grent->gr_name, 0)); |
| 5458 | |
| 5459 | #ifdef GRPASSWD |
| 5460 | mPUSHs(newSVpv(grent->gr_passwd, 0)); |
| 5461 | #else |
| 5462 | PUSHs(sv_mortalcopy(&PL_sv_no)); |
| 5463 | #endif |
| 5464 | |
| 5465 | #if Gid_t_sign <= 0 |
| 5466 | mPUSHi(grent->gr_gid); |
| 5467 | #else |
| 5468 | mPUSHu(grent->gr_gid); |
| 5469 | #endif |
| 5470 | |
| 5471 | #if !(defined(_CRAYMPP) && defined(USE_REENTRANT_API)) |
| 5472 | /* In UNICOS/mk (_CRAYMPP) the multithreading |
| 5473 | * versions (getgrnam_r, getgrgid_r) |
| 5474 | * seem to return an illegal pointer |
| 5475 | * as the group members list, gr_mem. |
| 5476 | * getgrent() doesn't even have a _r version |
| 5477 | * but the gr_mem is poisonous anyway. |
| 5478 | * So yes, you cannot get the list of group |
| 5479 | * members if building multithreaded in UNICOS/mk. */ |
| 5480 | PUSHs(space_join_names_mortal(grent->gr_mem)); |
| 5481 | #endif |
| 5482 | } |
| 5483 | |
| 5484 | RETURN; |
| 5485 | #else |
| 5486 | DIE(aTHX_ PL_no_func, PL_op_desc[PL_op->op_type]); |
| 5487 | #endif |
| 5488 | } |
| 5489 | |
| 5490 | PP(pp_sgrent) |
| 5491 | { |
| 5492 | #if defined(HAS_GROUP) && defined(HAS_SETGRENT) |
| 5493 | dVAR; dSP; |
| 5494 | setgrent(); |
| 5495 | RETPUSHYES; |
| 5496 | #else |
| 5497 | DIE(aTHX_ PL_no_func, "setgrent"); |
| 5498 | #endif |
| 5499 | } |
| 5500 | |
| 5501 | PP(pp_egrent) |
| 5502 | { |
| 5503 | #if defined(HAS_GROUP) && defined(HAS_ENDGRENT) |
| 5504 | dVAR; dSP; |
| 5505 | endgrent(); |
| 5506 | RETPUSHYES; |
| 5507 | #else |
| 5508 | DIE(aTHX_ PL_no_func, "endgrent"); |
| 5509 | #endif |
| 5510 | } |
| 5511 | |
| 5512 | PP(pp_getlogin) |
| 5513 | { |
| 5514 | #ifdef HAS_GETLOGIN |
| 5515 | dVAR; dSP; dTARGET; |
| 5516 | char *tmps; |
| 5517 | EXTEND(SP, 1); |
| 5518 | if (!(tmps = PerlProc_getlogin())) |
| 5519 | RETPUSHUNDEF; |
| 5520 | sv_setpv_mg(TARG, tmps); |
| 5521 | PUSHs(TARG); |
| 5522 | RETURN; |
| 5523 | #else |
| 5524 | DIE(aTHX_ PL_no_func, "getlogin"); |
| 5525 | #endif |
| 5526 | } |
| 5527 | |
| 5528 | /* Miscellaneous. */ |
| 5529 | |
| 5530 | PP(pp_syscall) |
| 5531 | { |
| 5532 | #ifdef HAS_SYSCALL |
| 5533 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
| 5534 | register I32 items = SP - MARK; |
| 5535 | unsigned long a[20]; |
| 5536 | register I32 i = 0; |
| 5537 | I32 retval = -1; |
| 5538 | |
| 5539 | if (PL_tainting) { |
| 5540 | while (++MARK <= SP) { |
| 5541 | if (SvTAINTED(*MARK)) { |
| 5542 | TAINT; |
| 5543 | break; |
| 5544 | } |
| 5545 | } |
| 5546 | MARK = ORIGMARK; |
| 5547 | TAINT_PROPER("syscall"); |
| 5548 | } |
| 5549 | |
| 5550 | /* This probably won't work on machines where sizeof(long) != sizeof(int) |
| 5551 | * or where sizeof(long) != sizeof(char*). But such machines will |
| 5552 | * not likely have syscall implemented either, so who cares? |
| 5553 | */ |
| 5554 | while (++MARK <= SP) { |
| 5555 | if (SvNIOK(*MARK) || !i) |
| 5556 | a[i++] = SvIV(*MARK); |
| 5557 | else if (*MARK == &PL_sv_undef) |
| 5558 | a[i++] = 0; |
| 5559 | else |
| 5560 | a[i++] = (unsigned long)SvPV_force_nolen(*MARK); |
| 5561 | if (i > 15) |
| 5562 | break; |
| 5563 | } |
| 5564 | switch (items) { |
| 5565 | default: |
| 5566 | DIE(aTHX_ "Too many args to syscall"); |
| 5567 | case 0: |
| 5568 | DIE(aTHX_ "Too few args to syscall"); |
| 5569 | case 1: |
| 5570 | retval = syscall(a[0]); |
| 5571 | break; |
| 5572 | case 2: |
| 5573 | retval = syscall(a[0],a[1]); |
| 5574 | break; |
| 5575 | case 3: |
| 5576 | retval = syscall(a[0],a[1],a[2]); |
| 5577 | break; |
| 5578 | case 4: |
| 5579 | retval = syscall(a[0],a[1],a[2],a[3]); |
| 5580 | break; |
| 5581 | case 5: |
| 5582 | retval = syscall(a[0],a[1],a[2],a[3],a[4]); |
| 5583 | break; |
| 5584 | case 6: |
| 5585 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5]); |
| 5586 | break; |
| 5587 | case 7: |
| 5588 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6]); |
| 5589 | break; |
| 5590 | case 8: |
| 5591 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]); |
| 5592 | break; |
| 5593 | #ifdef atarist |
| 5594 | case 9: |
| 5595 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]); |
| 5596 | break; |
| 5597 | case 10: |
| 5598 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]); |
| 5599 | break; |
| 5600 | case 11: |
| 5601 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], |
| 5602 | a[10]); |
| 5603 | break; |
| 5604 | case 12: |
| 5605 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], |
| 5606 | a[10],a[11]); |
| 5607 | break; |
| 5608 | case 13: |
| 5609 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], |
| 5610 | a[10],a[11],a[12]); |
| 5611 | break; |
| 5612 | case 14: |
| 5613 | retval = syscall(a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9], |
| 5614 | a[10],a[11],a[12],a[13]); |
| 5615 | break; |
| 5616 | #endif /* atarist */ |
| 5617 | } |
| 5618 | SP = ORIGMARK; |
| 5619 | PUSHi(retval); |
| 5620 | RETURN; |
| 5621 | #else |
| 5622 | DIE(aTHX_ PL_no_func, "syscall"); |
| 5623 | #endif |
| 5624 | } |
| 5625 | |
| 5626 | #ifdef FCNTL_EMULATE_FLOCK |
| 5627 | |
| 5628 | /* XXX Emulate flock() with fcntl(). |
| 5629 | What's really needed is a good file locking module. |
| 5630 | */ |
| 5631 | |
| 5632 | static int |
| 5633 | fcntl_emulate_flock(int fd, int operation) |
| 5634 | { |
| 5635 | int res; |
| 5636 | struct flock flock; |
| 5637 | |
| 5638 | switch (operation & ~LOCK_NB) { |
| 5639 | case LOCK_SH: |
| 5640 | flock.l_type = F_RDLCK; |
| 5641 | break; |
| 5642 | case LOCK_EX: |
| 5643 | flock.l_type = F_WRLCK; |
| 5644 | break; |
| 5645 | case LOCK_UN: |
| 5646 | flock.l_type = F_UNLCK; |
| 5647 | break; |
| 5648 | default: |
| 5649 | errno = EINVAL; |
| 5650 | return -1; |
| 5651 | } |
| 5652 | flock.l_whence = SEEK_SET; |
| 5653 | flock.l_start = flock.l_len = (Off_t)0; |
| 5654 | |
| 5655 | res = fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &flock); |
| 5656 | if (res == -1 && ((errno == EAGAIN) || (errno == EACCES))) |
| 5657 | errno = EWOULDBLOCK; |
| 5658 | return res; |
| 5659 | } |
| 5660 | |
| 5661 | #endif /* FCNTL_EMULATE_FLOCK */ |
| 5662 | |
| 5663 | #ifdef LOCKF_EMULATE_FLOCK |
| 5664 | |
| 5665 | /* XXX Emulate flock() with lockf(). This is just to increase |
| 5666 | portability of scripts. The calls are not completely |
| 5667 | interchangeable. What's really needed is a good file |
| 5668 | locking module. |
| 5669 | */ |
| 5670 | |
| 5671 | /* The lockf() constants might have been defined in <unistd.h>. |
| 5672 | Unfortunately, <unistd.h> causes troubles on some mixed |
| 5673 | (BSD/POSIX) systems, such as SunOS 4.1.3. |
| 5674 | |
| 5675 | Further, the lockf() constants aren't POSIX, so they might not be |
| 5676 | visible if we're compiling with _POSIX_SOURCE defined. Thus, we'll |
| 5677 | just stick in the SVID values and be done with it. Sigh. |
| 5678 | */ |
| 5679 | |
| 5680 | # ifndef F_ULOCK |
| 5681 | # define F_ULOCK 0 /* Unlock a previously locked region */ |
| 5682 | # endif |
| 5683 | # ifndef F_LOCK |
| 5684 | # define F_LOCK 1 /* Lock a region for exclusive use */ |
| 5685 | # endif |
| 5686 | # ifndef F_TLOCK |
| 5687 | # define F_TLOCK 2 /* Test and lock a region for exclusive use */ |
| 5688 | # endif |
| 5689 | # ifndef F_TEST |
| 5690 | # define F_TEST 3 /* Test a region for other processes locks */ |
| 5691 | # endif |
| 5692 | |
| 5693 | static int |
| 5694 | lockf_emulate_flock(int fd, int operation) |
| 5695 | { |
| 5696 | int i; |
| 5697 | Off_t pos; |
| 5698 | dSAVE_ERRNO; |
| 5699 | |
| 5700 | /* flock locks entire file so for lockf we need to do the same */ |
| 5701 | pos = PerlLIO_lseek(fd, (Off_t)0, SEEK_CUR); /* get pos to restore later */ |
| 5702 | if (pos > 0) /* is seekable and needs to be repositioned */ |
| 5703 | if (PerlLIO_lseek(fd, (Off_t)0, SEEK_SET) < 0) |
| 5704 | pos = -1; /* seek failed, so don't seek back afterwards */ |
| 5705 | RESTORE_ERRNO; |
| 5706 | |
| 5707 | switch (operation) { |
| 5708 | |
| 5709 | /* LOCK_SH - get a shared lock */ |
| 5710 | case LOCK_SH: |
| 5711 | /* LOCK_EX - get an exclusive lock */ |
| 5712 | case LOCK_EX: |
| 5713 | i = lockf (fd, F_LOCK, 0); |
| 5714 | break; |
| 5715 | |
| 5716 | /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */ |
| 5717 | case LOCK_SH|LOCK_NB: |
| 5718 | /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */ |
| 5719 | case LOCK_EX|LOCK_NB: |
| 5720 | i = lockf (fd, F_TLOCK, 0); |
| 5721 | if (i == -1) |
| 5722 | if ((errno == EAGAIN) || (errno == EACCES)) |
| 5723 | errno = EWOULDBLOCK; |
| 5724 | break; |
| 5725 | |
| 5726 | /* LOCK_UN - unlock (non-blocking is a no-op) */ |
| 5727 | case LOCK_UN: |
| 5728 | case LOCK_UN|LOCK_NB: |
| 5729 | i = lockf (fd, F_ULOCK, 0); |
| 5730 | break; |
| 5731 | |
| 5732 | /* Default - can't decipher operation */ |
| 5733 | default: |
| 5734 | i = -1; |
| 5735 | errno = EINVAL; |
| 5736 | break; |
| 5737 | } |
| 5738 | |
| 5739 | if (pos > 0) /* need to restore position of the handle */ |
| 5740 | PerlLIO_lseek(fd, pos, SEEK_SET); /* ignore error here */ |
| 5741 | |
| 5742 | return (i); |
| 5743 | } |
| 5744 | |
| 5745 | #endif /* LOCKF_EMULATE_FLOCK */ |
| 5746 | |
| 5747 | /* |
| 5748 | * Local variables: |
| 5749 | * c-indentation-style: bsd |
| 5750 | * c-basic-offset: 4 |
| 5751 | * indent-tabs-mode: t |
| 5752 | * End: |
| 5753 | * |
| 5754 | * ex: set ts=8 sts=4 sw=4 noet: |
| 5755 | */ |