1#!./perl -w 2 3BEGIN { 4 chdir 't' if -d 't'; 5 require './test.pl'; require './charset_tools.pl'; 6 set_up_inc(qw '../lib ../cpan/Math-BigInt/lib'); 7} 8 9plan tests => 14722; 10 11use strict; 12use warnings qw(FATAL all); 13use Config; 14 15my $Perl = which_perl(); 16my @valid_errors = (qr/^Invalid type '\w'/); 17 18my $ByteOrder = 'unknown'; 19my $maybe_not_avail = '(?:hto[bl]e|[bl]etoh)'; 20if ($Config{byteorder} =~ /^1234(?:5678)?$/) { 21 $ByteOrder = 'little'; 22 $maybe_not_avail = '(?:htobe|betoh)'; 23} 24elsif ($Config{byteorder} =~ /^(?:8765)?4321$/) { 25 $ByteOrder = 'big'; 26 $maybe_not_avail = '(?:htole|letoh)'; 27} 28else { 29 push @valid_errors, qr/^Can't (?:un)?pack (?:big|little)-endian .*? on this platform/; 30} 31 32for my $size ( 16, 32, 64 ) { 33 if (defined $Config{"u${size}size"} and ($Config{"u${size}size"}||0) != ($size >> 3)) { 34 push @valid_errors, qr/^Perl_my_$maybe_not_avail$size\(\) not available/; 35 } 36} 37 38my $IsTwosComplement = pack('i', -1) eq "\xFF" x $Config{intsize}; 39print "# \$IsTwosComplement = $IsTwosComplement\n"; 40 41sub is_valid_error 42{ 43 my $err = shift; 44 45 for my $e (@valid_errors) { 46 $err =~ $e and return 1; 47 } 48 49 return 0; 50} 51 52sub encode_list { 53 my @result = map {_qq($_)} @_; 54 if (@result == 1) { 55 return @result; 56 } 57 return '(' . join (', ', @result) . ')'; 58} 59 60 61sub list_eq ($$) { 62 my ($l, $r) = @_; 63 return 0 unless @$l == @$r; 64 for my $i (0..$#$l) { 65 if (defined $l->[$i]) { 66 return 0 unless defined ($r->[$i]) && $l->[$i] eq $r->[$i]; 67 } else { 68 return 0 if defined $r->[$i] 69 } 70 } 71 return 1; 72} 73 74############################################################################## 75# 76# Here starteth the tests 77# 78 79{ 80 my $format = "c2 x5 C C x s d i l a6"; 81 # Need the expression in here to force ary[5] to be numeric. This avoids 82 # test2 failing because ary2 goes str->numeric->str and ary doesn't. 83 my @ary = (1,-100,127,128,32767,987.654321098 / 100.0,12345,123456, 84 "abcdef"); 85 my $foo = pack($format,@ary); 86 my @ary2 = unpack($format,$foo); 87 88 is($#ary, $#ary2); 89 90 my $out1=join(':',@ary); 91 my $out2=join(':',@ary2); 92 # Using long double NVs may introduce greater accuracy than wanted. 93 $out1 =~ s/:9\.87654321097999\d*:/:9.87654321098:/; 94 $out2 =~ s/:9\.87654321097999\d*:/:9.87654321098:/; 95 is($out1, $out2); 96 97 like($foo, qr/def/); 98} 99# How about counting bits? 100 101{ 102 my $x; 103 is( ($x = unpack("%32B*", "\001\002\004\010\020\040\100\200\377")), 16 ); 104 105 is( ($x = unpack("%32b69", "\001\002\004\010\020\040\100\200\017")), 12 ); 106 107 is( ($x = unpack("%32B69", "\001\002\004\010\020\040\100\200\017")), 9 ); 108} 109 110{ 111 my $sum = 129; # ASCII 112 $sum = 103 if $::IS_EBCDIC; 113 114 my $x; 115 is( ($x = unpack("%32B*", "Now is the time for all good blurfl")), $sum ); 116 117 my $foo; 118 open(BIN, $Perl) || die "Can't open $Perl: $!\n"; 119 binmode BIN; 120 sysread BIN, $foo, 8192; 121 close BIN; 122 123 $sum = unpack("%32b*", $foo); 124 my $longway = unpack("b*", $foo); 125 is( $sum, $longway =~ tr/1/1/ ); 126} 127 128{ 129 my $x; 130 is( ($x = unpack("I",pack("I", 0xFFFFFFFF))), 0xFFFFFFFF ); 131} 132 133{ 134 note("check 'w'"); 135 my @x = (5,130,256,560,32000,3097152,268435455,1073741844, 2**33, 136 '4503599627365785','23728385234614992549757750638446'); 137 my $x = pack('w*', @x); 138 my $y = pack 'H*', '0581028200843081fa0081bd8440ffffff7f8480808014A0808'. 139 '0800087ffffffffffdb19caefe8e1eeeea0c2e1e3e8ede1ee6e'; 140 141 is($x, $y); 142 143 my @y = unpack('w*', $y); 144 my $a; 145 while ($a = pop @x) { 146 my $b = pop @y; 147 is($a, $b); 148 } 149 150 @y = unpack('w2', $x); 151 152 is(scalar(@y), 2); 153 is($y[1], 130); 154 155 SKIP: { 156 skip "no Scalar::Util (Math::BigInt prerequisite) on miniperl", 10, if is_miniperl(); 157 $x = pack('w*', 5000000000); $y = ''; 158 eval q{ 159 use Math::BigInt; 160 $y = pack('w*', Math::BigInt::->new(5000000000)); 161 }; 162 is($x, $y, 'pack'); 163 164 $x = pack 'w', ~0; 165 $y = pack 'w', (~0).''; 166 is($x, $y); 167 is(unpack ('w',$x), ~0); 168 is(unpack ('w',$y), ~0); 169 170 $x = pack 'w', ~0 - 1; 171 $y = pack 'w', (~0) - 2; 172 173 if (~0 - 1 == (~0) - 2) { 174 is($x, $y, "NV arithmetic"); 175 } else { 176 isnt($x, $y, "IV/NV arithmetic"); 177 } 178 cmp_ok(unpack ('w',$x), '==', ~0 - 1); 179 cmp_ok(unpack ('w',$y), '==', ~0 - 2); 180 181 # These should spot that pack 'w' is using NV, not double, on platforms 182 # where IVs are smaller than doubles, and harmlessly pass elsewhere. 183 # (tests for change 16861) 184 my $x0 = 2**54+3; 185 my $y0 = 2**54-2; 186 187 $x = pack 'w', $x0; 188 $y = pack 'w', $y0; 189 190 if ($x0 == $y0) { 191 is($x, $y, "NV arithmetic"); 192 } else { 193 isnt($x, $y, "IV/NV arithmetic"); 194 } 195 cmp_ok(unpack ('w',$x), '==', $x0); 196 cmp_ok(unpack ('w',$y), '==', $y0); 197 } 198} 199 200 201{ 202 print "# test exceptions\n"; 203 my $x; 204 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff}; 205 like($@, qr/^Unterminated compressed integer/); 206 207 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff}; 208 like($@, qr/^Unterminated compressed integer/); 209 210 eval { $x = unpack 'w', pack 'C*', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 211 like($@, qr/^Unterminated compressed integer/); 212 213 eval { $x = pack 'w', -1 }; 214 like ($@, qr/^Cannot compress negative numbers/); 215 216 eval { $x = pack 'w', '1'x(1 + length ~0) . 'e0' }; 217 like ($@, qr/^Can only compress unsigned integers/); 218 219 # Check that the warning behaviour on the modifiers !, < and > is as we 220 # expect it for this perl. 221 my $can_endian = 'sSiIlLqQjJfFdDpP'; 222 my $can_shriek = 'sSiIlLnNvV'; 223 # h and H can't do either, so act as sanity checks in blead 224 foreach my $base (split '', 'hHsSiIlLqQjJfFdDpPnNvV') { 225 foreach my $mod ('', '<', '>', '!', '<!', '>!', '!<', '!>') { 226 SKIP: { 227 # Avoid void context warnings. 228 my $a = eval {pack "$base$mod"}; 229 skip "pack can't $base", 1 if $@ =~ /^Invalid type '\w'/; 230 # Which error you get when 2 would be possible seems to be emergent 231 # behaviour of pack's format parser. 232 233 my $fails_shriek = $mod =~ /!/ && index ($can_shriek, $base) == -1; 234 my $fails_endian = $mod =~ /[<>]/ && index ($can_endian, $base) == -1; 235 my $shriek_first = $mod =~ /^!/; 236 237 if ($fails_shriek and $fails_endian) { 238 if ($shriek_first) { 239 undef $fails_endian; 240 } 241 } 242 243 if ($fails_endian) { 244 like ($@, qr/^'[<>]' allowed only after types/, 245 "pack can't $base$mod"); 246 } elsif ($fails_shriek) { 247 like ($@, qr/^'!' allowed only after types/, 248 "pack can't $base$mod"); 249 } else { 250 is ($@, '', "pack can $base$mod"); 251 } 252 } 253 } 254 } 255 256 for my $mod (qw( ! < > )) { 257 eval { $x = pack "a$mod", 42 }; 258 like ($@, qr/^'$mod' allowed only after types \S+ in pack/); 259 260 eval { $x = unpack "a$mod", 'x'x8 }; 261 like ($@, qr/^'$mod' allowed only after types \S+ in unpack/); 262 } 263 264 for my $mod (qw( <> >< !<> !>< <!> >!< <>! ><! )) { 265 eval { $x = pack "sI${mod}s", 42, 47, 11 }; 266 like ($@, qr/^Can't use both '<' and '>' after type 'I' in pack/); 267 268 eval { $x = unpack "sI${mod}s", 'x'x16 }; 269 like ($@, qr/^Can't use both '<' and '>' after type 'I' in unpack/); 270 } 271 272 SKIP: { 273 # Is this a stupid thing to do on VMS, VOS and other unusual platforms? 274 275 skip("-- the IEEE infinity model is unavailable in this configuration.", 1) 276 if (($^O eq 'VMS') && !defined($Config{useieee}) || !$Config{d_double_has_inf}); 277 278 skip("-- $^O has serious fp indigestion on w-packed infinities", 1) 279 if $^O =~ /^svr4/ && -f "/etc/issue" && -f "/etc/.relid"; # NCR MP-RAS 280 281 my $inf = eval '2**1000000'; 282 283 skip("Couldn't generate infinity - got error '$@'", 1) 284 unless defined $inf and $inf == $inf / 2 and $inf + 1 == $inf; 285 286 local our $TODO; 287 $TODO = "VOS needs a fix for posix-1022 to pass this test." 288 if ($^O eq 'vos'); 289 290 eval { $x = pack 'w', $inf }; 291 like ($@, qr/^Cannot compress Inf/, "Cannot compress infinity"); 292 } 293 294 SKIP: { 295 296 skip("-- the full range of an IEEE double may not be available in this configuration.", 3) 297 if (($^O eq 'VMS') && !defined($Config{useieee}) || !$Config{d_double_style_ieee}); 298 299 # This should be about the biggest thing possible on an IEEE double 300 my $big = eval '2**1023'; 301 302 skip("Couldn't generate 2**1023 - got error '$@'", 3) 303 unless defined $big and $big != $big / 2; 304 305 eval { $x = pack 'w', $big }; 306 is ($@, '', "Should be able to pack 'w', $big # 2**1023"); 307 308 my $y = eval {unpack 'w', $x}; 309 is ($@, '', 310 "Should be able to unpack 'w' the result of pack 'w', $big # 2**1023"); 311 312 # I'm getting about 1e-16 on FreeBSD 313 my $quotient = int (100 * ($y - $big) / $big); 314 ok($quotient < 2 && $quotient > -2, 315 "Round trip pack, unpack 'w' of $big is within 1% ($quotient%)"); 316 } 317 318} 319 320print "# test the 'p' template\n"; 321 322# literals 323is(unpack("p",pack("p","foo")), "foo"); 324SKIP: { 325 is(unpack("p<",pack("p<","foo")), "foo"); 326 is(unpack("p>",pack("p>","foo")), "foo"); 327} 328# scalars 329is(unpack("p",pack("p",239)), 239); 330is(unpack("p<",pack("p<",239)), 239); 331is(unpack("p>",pack("p>",239)), 239); 332 333# temps 334sub foo { my $a = "a"; return $a . $a++ . $a++ } 335{ 336 use warnings qw(NONFATAL all);; 337 my $warning; 338 local $SIG{__WARN__} = sub { 339 $warning = $_[0]; 340 }; 341 my $junk = pack("p", &foo); 342 343 like($warning, qr/temporary val/); 344} 345 346# undef should give null pointer 347like(pack("p", undef), qr/^\0+$/); 348like(pack("p<", undef), qr/^\0+$/); 349like(pack("p>", undef), qr/^\0+$/); 350 351# Check for optimizer bug (e.g. Digital Unix GEM cc with -O4 on DU V4.0B gives 352# 4294967295 instead of -1) 353# see #ifdef __osf__ in pp.c pp_unpack 354is((unpack("i",pack("i",-1))), -1); 355 356print "# test the pack lengths of s S i I l L n N v V + modifiers\n"; 357 358my @lengths = ( 359 qw(s 2 S 2 i -4 I -4 l 4 L 4 n 2 N 4 v 2 V 4 n! 2 N! 4 v! 2 V! 4), 360 's!' => $Config{shortsize}, 'S!' => $Config{shortsize}, 361 'i!' => $Config{intsize}, 'I!' => $Config{intsize}, 362 'l!' => $Config{longsize}, 'L!' => $Config{longsize}, 363); 364 365while (my ($base, $expect) = splice @lengths, 0, 2) { 366 my @formats = ($base); 367 $base =~ /^[nv]/i or push @formats, "$base>", "$base<"; 368 for my $format (@formats) { 369 my $len = length(pack($format, 0)); 370 if ($expect > 0) { 371 is($expect, $len, "format '$format'"); 372 } else { 373 $expect = -$expect; 374 ok ($len >= $expect, "format '$format'") || 375 print "# format '$format' has length $len, expected >= $expect\n"; 376 } 377 } 378} 379 380 381print "# test unpack-pack lengths\n"; 382 383my @templates = qw(c C W i I s S l L n N v V f d q Q); 384 385foreach my $base (@templates) { 386 my @tmpl = ($base); 387 $base =~ /^[cwnv]/i or push @tmpl, "$base>", "$base<"; 388 foreach my $t (@tmpl) { 389 SKIP: { 390 my @t = eval { unpack("$t*", pack("$t*", 12, 34)) }; 391 392 skip "cannot pack '$t' on this perl", 4 393 if is_valid_error($@); 394 395 is( $@, '', "Template $t works"); 396 is(scalar @t, 2); 397 398 is($t[0], 12); 399 is($t[1], 34); 400 } 401 } 402} 403 404{ 405 # uuencode/decode 406 407 # Note that first uuencoding known 'text' data and then checking the 408 # binary values of the uuencoded version would not be portable between 409 # character sets. Uuencoding is meant for encoding binary data, not 410 # text data. 411 412 my $in = pack 'C*', 0 .. 255; 413 414 # just to be anal, we do some random tr/`/ / 415 my $uu = <<'EOUU'; 416M` $"`P0%!@<("0H+# T.#Q`1$A,4%187&!D:&QP='A\@(2(C)"4F)R@I*BLL 417M+2XO,#$R,S0U-C<X.3H[/#T^/T!!0D-$149'2$E*2TQ-3D]045)35%565UA9 418M6EM<75Y?8&%B8V1E9F=H:6IK;&UN;W!Q<G-T=79W>'EZ>WQ]?G^`@8*#A(6& 419MAXB)BHN,C8Z/D)&2DY25EI>8F9J;G)V>GZ"AHJ.DI::GJ*FJJZRMKJ^PL;*S 420MM+6VM[BYNKN\O;Z_P,'"P\3%QL?(R<K+S,W.S]#1TM/4U=;7V-G:V]S=WM_@ 421?X>+CY.7FY^CIZNOL[>[O\/'R\_3U]O?X^?K[_/W^_P ` 422EOUU 423 424 $_ = $uu; 425 tr/ /`/; 426 427 is(pack('u', $in), $_); 428 429 is(unpack('u', $uu), $in); 430 431 $in = "\x1f\x8b\x08\x08\x58\xdc\xc4\x35\x02\x03\x4a\x41\x50\x55\x00\xf3\x2a\x2d\x2e\x51\x48\xcc\xcb\x2f\xc9\x48\x2d\x52\x08\x48\x2d\xca\x51\x28\x2d\x4d\xce\x4f\x49\x2d\xe2\x02\x00\x64\x66\x60\x5c\x1a\x00\x00\x00"; 432 $uu = <<'EOUU'; 433M'XL("%C<Q#4"`TI!4%4`\RHM+E%(S,LOR4@M4@A(+<I1*"U-SD])+>("`&1F 434&8%P:```` 435EOUU 436 437 is(unpack('u', $uu), $in); 438 439# This is identical to the above except that backquotes have been 440# changed to spaces 441 442 $uu = <<'EOUU'; 443M'XL("%C<Q#4" TI!4%4 \RHM+E%(S,LOR4@M4@A(+<I1*"U-SD])+>(" &1F 444&8%P: 445EOUU 446 447 # ' # Grr 448 is(unpack('u', $uu), $in); 449 450} 451 452# test the ascii template types (A, a, Z) 453 454foreach ( 455['p', 'A*', "foo\0bar\0 ", "foo\0bar\0 "], 456['p', 'A11', "foo\0bar\0 ", "foo\0bar\0 "], 457['u', 'A*', "foo\0bar \0", "foo\0bar"], 458['u', 'A8', "foo\0bar \0", "foo\0bar"], 459['p', 'a*', "foo\0bar\0 ", "foo\0bar\0 "], 460['p', 'a11', "foo\0bar\0 ", "foo\0bar\0 \0\0"], 461['u', 'a*', "foo\0bar \0", "foo\0bar \0"], 462['u', 'a8', "foo\0bar \0", "foo\0bar "], 463['p', 'Z*', "foo\0bar\0 ", "foo\0bar\0 \0"], 464['p', 'Z11', "foo\0bar\0 ", "foo\0bar\0 \0\0"], 465['p', 'Z3', "foo", "fo\0"], 466['u', 'Z*', "foo\0bar \0", "foo"], 467['u', 'Z8', "foo\0bar \0", "foo"], 468) 469{ 470 my ($what, $template, $in, $out) = @$_; 471 my $got = $what eq 'u' ? (unpack $template, $in) : (pack $template, $in); 472 unless (is($got, $out)) { 473 my $un = $what eq 'u' ? 'un' : ''; 474 print "# ${un}pack ('$template', "._qq($in).') gave '._qq($out). 475 ' not '._qq($got)."\n"; 476 } 477} 478 479print "# packing native shorts/ints/longs\n"; 480 481is(length(pack("s!", 0)), $Config{shortsize}); 482is(length(pack("i!", 0)), $Config{intsize}); 483is(length(pack("l!", 0)), $Config{longsize}); 484ok(length(pack("s!", 0)) <= length(pack("i!", 0))); 485ok(length(pack("i!", 0)) <= length(pack("l!", 0))); 486is(length(pack("i!", 0)), length(pack("i", 0))); 487 488sub numbers { 489 my $base = shift; 490 my @formats = ($base); 491 $base =~ /^[silqjfdp]/i and push @formats, "$base>", "$base<"; 492 for my $format (@formats) { 493 numbers_with_total ($format, undef, @_); 494 } 495} 496 497sub numbers_with_total { 498 my $format = shift; 499 my $total = shift; 500 if (!defined $total) { 501 foreach (@_) { 502 $total += $_; 503 } 504 } 505 print "# numbers test for $format\n"; 506 foreach (@_) { 507 SKIP: { 508 my $out = eval {unpack($format, pack($format, $_))}; 509 skip "cannot pack '$format' on this perl", 2 510 if is_valid_error($@); 511 512 is($@, '', "no error"); 513 is($out, $_, "unpack pack $format $_"); 514 } 515 } 516 517 my $skip_if_longer_than = ~0; # "Infinity" 518 if (~0 - 1 == ~0) { 519 # If we're running with -DNO_PERLPRESERVE_IVUV and NVs don't preserve all 520 # UVs (in which case ~0 is NV, ~0-1 will be the same NV) then we can't 521 # correctly in perl calculate UV totals for long checksums, as pp_unpack 522 # is using UV maths, and we've only got NVs. 523 $skip_if_longer_than = $Config{nv_preserves_uv_bits}; 524 } 525 526 foreach ('', 1, 2, 3, 15, 16, 17, 31, 32, 33, 53, 54, 63, 64, 65) { 527 SKIP: { 528 my $sum = eval {unpack "%$_$format*", pack "$format*", @_}; 529 skip "cannot pack '$format' on this perl", 3 530 if is_valid_error($@); 531 532 is($@, '', "no error"); 533 ok(defined $sum, "sum bits $_, format $format defined"); 534 535 my $len = $_; # Copy, so that we can reassign '' 536 $len = 16 unless length $len; 537 538 SKIP: { 539 skip "cannot test checksums over $skip_if_longer_than bits", 1 540 if $len > $skip_if_longer_than; 541 542 # Our problem with testing this portably is that the checksum code in 543 # pp_unpack is able to cast signed to unsigned, and do modulo 2**n 544 # arithmetic in unsigned ints, which perl has no operators to do. 545 # (use integer; does signed ints, which won't wrap on UTS, which is just 546 # fine with ANSI, but not with most people's assumptions. 547 # This is why we need to supply the totals for 'Q' as there's no way in 548 # perl to calculate them, short of unpack '%0Q' (is that documented?) 549 # ** returns NVs; make sure it's IV. 550 my $max = 1 + 2 * (int (2 ** ($len-1))-1); # The max possible checksum 551 my $max_p1 = $max + 1; 552 my ($max_is_integer, $max_p1_is_integer); 553 $max_p1_is_integer = 1 unless $max_p1 + 1 == $max_p1; 554 $max_is_integer = 1 if $max - 1 < ~0; 555 556 my $calc_sum; 557 if (ref $total) { 558 $calc_sum = &$total($len); 559 } else { 560 $calc_sum = $total; 561 # Shift into range by some multiple of the total 562 my $mult = $max_p1 ? int ($total / $max_p1) : undef; 563 # Need this to make sure that -1 + (~0+1) is ~0 (ie still integer) 564 $calc_sum = $total - $mult; 565 $calc_sum -= $mult * $max; 566 if ($calc_sum < 0) { 567 $calc_sum += 1; 568 $calc_sum += $max; 569 } 570 } 571 if ($calc_sum == $calc_sum - 1 && $calc_sum == $max_p1) { 572 # we're into floating point (either by getting out of the range of 573 # UV arithmetic, or because we're doing a floating point checksum) 574 # and our calculation of the checksum has become rounded up to 575 # max_checksum + 1 576 $calc_sum = 0; 577 } 578 579 if ($calc_sum == $sum) { # HAS to be ==, not eq (so no is()). 580 pass ("unpack '%$_$format' gave $sum"); 581 } else { 582 my $delta = 1.000001; 583 if ($format =~ tr /dDfF// 584 && ($calc_sum <= $sum * $delta && $calc_sum >= $sum / $delta)) { 585 pass ("unpack '%$_$format' gave $sum, expected $calc_sum"); 586 } else { 587 my $text = ref $total ? &$total($len) : $total; 588 fail; 589 print "# For list (" . join (", ", @_) . ") (total $text)" 590 . " packed with $format unpack '%$_$format' gave $sum," 591 . " expected $calc_sum\n"; 592 } 593 } 594 } 595 } 596 } 597} 598 599numbers ('c', -128, -1, 0, 1, 127); 600numbers ('C', 0, 1, 127, 128, 255); 601numbers ('W', 0, 1, 127, 128, 255, 256, 0x7ff, 0x800, 0xfffd); 602numbers ('s', -32768, -1, 0, 1, 32767); 603numbers ('S', 0, 1, 32767, 32768, 65535); 604numbers ('i', -2147483648, -1, 0, 1, 2147483647); 605numbers ('I', 0, 1, 2147483647, 2147483648, 4294967295); 606numbers ('l', -2147483648, -1, 0, 1, 2147483647); 607numbers ('L', 0, 1, 2147483647, 2147483648, 4294967295); 608numbers ('s!', -32768, -1, 0, 1, 32767); 609numbers ('S!', 0, 1, 32767, 32768, 65535); 610numbers ('i!', -2147483648, -1, 0, 1, 2147483647); 611numbers ('I!', 0, 1, 2147483647, 2147483648, 4294967295); 612numbers ('l!', -2147483648, -1, 0, 1, 2147483647); 613numbers ('L!', 0, 1, 2147483647, 2147483648, 4294967295); 614numbers ('n', 0, 1, 32767, 32768, 65535); 615numbers ('v', 0, 1, 32767, 32768, 65535); 616numbers ('N', 0, 1, 2147483647, 2147483648, 4294967295); 617numbers ('V', 0, 1, 2147483647, 2147483648, 4294967295); 618numbers ('n!', -32768, -1, 0, 1, 32767); 619numbers ('v!', -32768, -1, 0, 1, 32767); 620numbers ('N!', -2147483648, -1, 0, 1, 2147483647); 621numbers ('V!', -2147483648, -1, 0, 1, 2147483647); 622# All these should have exact binary representations: 623numbers ('f', -1, 0, 0.5, 42, 2**34); 624numbers ('d', -(2**34), -1, 0, 1, 2**34); 625## These don't, but 'd' is NV. XXX wrong, it's double 626#numbers ('d', -1, 0, 1, 1-exp(-1), -exp(1)); 627 628numbers_with_total ('q', -1, 629 -9223372036854775808, -1, 0, 1,9223372036854775807); 630# This total is icky, but the true total is 2**65-1, and need a way to generate 631# the expected checksum on any system including those where NVs can preserve 632# 65 bits. (long double is 128 bits on sparc, so they certainly can) 633# or where rounding is down not up on binary conversion (crays) 634numbers_with_total ('Q', sub { 635 my $len = shift; 636 $len = 65 if $len > 65; # unmasked total is 2**65-1 here 637 my $total = 1 + 2 * (int (2**($len - 1)) - 1); 638 return 0 if $total == $total - 1; # Overflowed integers 639 return $total; # NVs still accurate to nearest integer 640 }, 641 0, 1,9223372036854775807, 9223372036854775808, 642 18446744073709551615); 643 644print "# pack nvNV byteorders\n"; 645 646is(pack("n", 0xdead), "\xde\xad"); 647is(pack("v", 0xdead), "\xad\xde"); 648is(pack("N", 0xdeadbeef), "\xde\xad\xbe\xef"); 649is(pack("V", 0xdeadbeef), "\xef\xbe\xad\xde"); 650 651is(pack("n!", 0xdead), "\xde\xad"); 652is(pack("v!", 0xdead), "\xad\xde"); 653is(pack("N!", 0xdeadbeef), "\xde\xad\xbe\xef"); 654is(pack("V!", 0xdeadbeef), "\xef\xbe\xad\xde"); 655 656print "# test big-/little-endian conversion\n"; 657 658sub byteorder 659{ 660 my $format = shift; 661 print "# byteorder test for $format\n"; 662 for my $value (@_) { 663 SKIP: { 664 my($nat,$be,$le) = eval { map { pack $format.$_, $value } '', '>', '<' }; 665 skip "cannot pack '$format' on this perl", 5 666 if is_valid_error($@); 667 668 { 669 use warnings qw(NONFATAL utf8); 670 print "# [$value][$nat][$be][$le][$@]\n"; 671 } 672 673 SKIP: { 674 skip "cannot compare native byteorder with big-/little-endian", 1 675 if $ByteOrder eq 'unknown'; 676 677 is($nat, $ByteOrder eq 'big' ? $be : $le); 678 } 679 is($be, reverse($le)); 680 my @x = eval { unpack "$format$format>$format<", $nat.$be.$le }; 681 682 print "# [$value][", join('][', @x), "][$@]\n"; 683 684 is($@, ''); 685 is($x[0], $x[1]); 686 is($x[0], $x[2]); 687 } 688 } 689} 690 691byteorder('s', -32768, -1, 0, 1, 32767); 692byteorder('S', 0, 1, 32767, 32768, 65535); 693byteorder('i', -2147483648, -1, 0, 1, 2147483647); 694byteorder('I', 0, 1, 2147483647, 2147483648, 4294967295); 695byteorder('l', -2147483648, -1, 0, 1, 2147483647); 696byteorder('L', 0, 1, 2147483647, 2147483648, 4294967295); 697byteorder('j', -2147483648, -1, 0, 1, 2147483647); 698byteorder('J', 0, 1, 2147483647, 2147483648, 4294967295); 699byteorder('s!', -32768, -1, 0, 1, 32767); 700byteorder('S!', 0, 1, 32767, 32768, 65535); 701byteorder('i!', -2147483648, -1, 0, 1, 2147483647); 702byteorder('I!', 0, 1, 2147483647, 2147483648, 4294967295); 703byteorder('l!', -2147483648, -1, 0, 1, 2147483647); 704byteorder('L!', 0, 1, 2147483647, 2147483648, 4294967295); 705byteorder('q', -9223372036854775808, -1, 0, 1, 9223372036854775807); 706byteorder('Q', 0, 1, 9223372036854775807, 9223372036854775808, 18446744073709551615); 707byteorder('f', -1, 0, 0.5, 42, 2**34); 708byteorder('F', -1, 0, 0.5, 42, 2**34); 709byteorder('d', -(2**34), -1, 0, 1, 2**34); 710byteorder('D', -(2**34), -1, 0, 1, 2**34); 711 712print "# test negative numbers\n"; 713 714SKIP: { 715 skip "platform is not using two's complement for negative integers", 120 716 unless $IsTwosComplement; 717 718 for my $format (qw(s i l j s! i! l! q)) { 719 SKIP: { 720 my($nat,$be,$le) = eval { map { pack $format.$_, -1 } '', '>', '<' }; 721 skip "cannot pack '$format' on this perl", 15 722 if is_valid_error($@); 723 724 my $len = length $nat; 725 is($_, "\xFF"x$len) for $nat, $be, $le; 726 727 my(@val,@ref); 728 if ($len >= 8) { 729 @val = (-2, -81985529216486896, -9223372036854775808); 730 @ref = ("\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFE", 731 "\xFE\xDC\xBA\x98\x76\x54\x32\x10", 732 "\x80\x00\x00\x00\x00\x00\x00\x00"); 733 } 734 elsif ($len >= 4) { 735 @val = (-2, -19088744, -2147483648); 736 @ref = ("\xFF\xFF\xFF\xFE", 737 "\xFE\xDC\xBA\x98", 738 "\x80\x00\x00\x00"); 739 } 740 else { 741 @val = (-2, -292, -32768); 742 @ref = ("\xFF\xFE", 743 "\xFE\xDC", 744 "\x80\x00"); 745 } 746 for my $x (@ref) { 747 if ($len > length $x) { 748 $x = $x . "\xFF" x ($len - length $x); 749 } 750 } 751 752 for my $i (0 .. $#val) { 753 my($nat,$be,$le) = eval { map { pack $format.$_, $val[$i] } '', '>', '<' }; 754 is($@, ''); 755 756 SKIP: { 757 skip "cannot compare native byteorder with big-/little-endian", 1 758 if $ByteOrder eq 'unknown'; 759 760 is($nat, $ByteOrder eq 'big' ? $be : $le); 761 } 762 763 is($be, $ref[$i]); 764 is($be, reverse($le)); 765 } 766 } 767 } 768} 769 770{ 771 # / 772 773 my ($x, $y, $z, @a); 774 eval { ($x) = unpack '/a*','hello' }; 775 like($@, qr!'/' must follow a numeric type!); 776 undef $x; 777 eval { $x = unpack '/a*','hello' }; 778 like($@, qr!'/' must follow a numeric type!); 779 780 # [perl #60204] Unhelpful error message from unpack 781 eval { @a = unpack 'v/a*','h' }; 782 is($@, ''); 783 is(scalar @a, 0); 784 eval { $x = unpack 'v/a*','h' }; 785 is($@, ''); 786 is($x, undef); 787 788 undef $x; 789 eval { ($z,$x,$y) = unpack 'a3/A C/a* C/Z', "003ok \003yes\004z\000abc" }; 790 is($@, ''); 791 is($z, 'ok'); 792 is($x, 'yes'); 793 is($y, 'z'); 794 undef $z; 795 eval { $z = unpack 'a3/A C/a* C/Z', "003ok \003yes\004z\000abc" }; 796 is($@, ''); 797 is($z, 'ok'); 798 799 800 undef $x; 801 eval { ($x) = pack '/a*','hello' }; 802 like($@, qr!Invalid type '/'!); 803 undef $x; 804 eval { $x = pack '/a*','hello' }; 805 like($@, qr!Invalid type '/'!); 806 807 $z = pack 'n/a* N/Z* w/A*','string','hi there ','etc'; 808 my $expect = "\000\006string\0\0\0\012hi there \000\003etc"; 809 is($z, $expect); 810 811 undef $x; 812 $expect = 'hello world'; 813 eval { ($x) = unpack ("w/a", chr (11) . "hello world!")}; 814 is($x, $expect); 815 is($@, ''); 816 817 undef $x; 818 # Doing this in scalar context used to fail. 819 eval { $x = unpack ("w/a", chr (11) . "hello world!")}; 820 is($@, ''); 821 is($x, $expect); 822 823 foreach ( 824 ['a/a*/a*', '212ab345678901234567','ab3456789012'], 825 ['a/a*/a*', '3012ab345678901234567', 'ab3456789012'], 826 ['a/a*/b*', '212ab', $::IS_EBCDIC ? '100000010100' : '100001100100'], 827 ) 828 { 829 my ($pat, $in, $expect) = @$_; 830 undef $x; 831 eval { ($x) = unpack $pat, $in }; 832 is($@, ''); 833 is($x, $expect) || 834 printf "# list unpack ('$pat', '$in') gave %s, expected '$expect'\n", 835 encode_list ($x); 836 837 undef $x; 838 eval { $x = unpack $pat, $in }; 839 is($@, ''); 840 is($x, $expect) || 841 printf "# scalar unpack ('$pat', '$in') gave %s, expected '$expect'\n", 842 encode_list ($x); 843 } 844 845 # / with # 846 847 my $pattern = <<'EOU'; 848 a3/A # Count in ASCII 849 C/a* # Count in a C char 850 C/Z # Count in a C char but skip after \0 851EOU 852 853 $x = $y = $z =undef; 854 eval { ($z,$x,$y) = unpack $pattern, "003ok \003yes\004z\000abc" }; 855 is($@, ''); 856 is($z, 'ok'); 857 is($x, 'yes'); 858 is($y, 'z'); 859 undef $x; 860 eval { $z = unpack $pattern, "003ok \003yes\004z\000abc" }; 861 is($@, ''); 862 is($z, 'ok'); 863 864 $pattern = <<'EOP'; 865 n/a* # Count as network short 866 w/A* # Count a BER integer 867EOP 868 $expect = "\000\006string\003etc"; 869 $z = pack $pattern,'string','etc'; 870 is($z, $expect); 871} 872 873 874{ 875 is("1.20.300.4000", sprintf "%vd", pack("U*",1,20,300,4000)); 876 is("1.20.300.4000", sprintf "%vd", pack(" U*",1,20,300,4000)); 877} 878isnt(v1.20.300.4000, sprintf "%vd", pack("C0U*",1,20,300,4000)); 879 880my $rslt = join " ", map { ord } split "", byte_utf8a_to_utf8n("\xc7\xa2"); 881# The ASCII UTF-8 of U+1E2 is "\xc7\xa2" 882is(join(" ", unpack("U0 C*", chr(0x1e2))), $rslt); 883 884# does pack U create Unicode? 885is(ord(pack('U', 300)), 300); 886 887# does unpack U deref Unicode? 888is((unpack('U', chr(300)))[0], 300); 889 890# is unpack U the reverse of pack U for Unicode string? 891is("@{[unpack('U*', pack('U*', 100, 200, 300))]}", "100 200 300"); 892 893# is unpack U the reverse of pack U for byte string? 894is("@{[unpack('U*', pack('U*', 100, 200))]}", "100 200"); 895 896{ 897 # does pack U0C create Unicode? 898 my $cp202 = chr(202); 899 utf8::upgrade $cp202; 900 my @bytes202; 901 { # This is portable across character sets 902 use bytes; 903 @bytes202 = map { ord } split "", $cp202; 904 } 905 906 # This test requires the first number to be invariant; 64 is invariant on 907 # ASCII and EBCDIC. 908 is("@{[pack('U0C*', 64, @bytes202)]}", v64.v202); 909 910 # does pack C0U create characters? 911 # The U* is expecting Unicode, so convert to that. 912 is("@{[pack('C0U*', map { $_ } 64, 202)]}", 913 pack("C*", 64, @bytes202)); 914 915 # does unpack U0U on byte data fail? 916 fresh_perl_like('my $bad = pack("U0C", 202); my @null = unpack("U0U", $bad);', 917 qr/^Malformed UTF-8 character: /, 918 {}, 919 "pack doesn't return malformed UTF-8"); 920} 921 922{ 923 my $p = pack 'i*', -2147483648, ~0, 0, 1, 2147483647; 924 my (@a); 925 # bug - % had to be at the start of the pattern, no leading whitespace or 926 # comments. %i! didn't work at all. 927 foreach my $pat ('%32i*', ' %32i*', "# Muhahahaha\n%32i*", '%32i* ', 928 '%32i!*', ' %32i!*', "\n#\n#\n\r \t\f%32i!*", '%32i!*#') { 929 @a = unpack $pat, $p; 930 is($a[0], 0xFFFFFFFF) || print "# $pat\n"; 931 @a = scalar unpack $pat, $p; 932 is($a[0], 0xFFFFFFFF) || print "# $pat\n"; 933 } 934 935 936 $p = pack 'I*', 42, 12; 937 # Multiline patterns in scalar context failed. 938 foreach my $pat ('I', <<EOPOEMSNIPPET, 'I#I', 'I # I', 'I # !!!') { 939# On the Ning Nang Nong 940# Where the Cows go Bong! 941# And the Monkeys all say Boo! 942I 943EOPOEMSNIPPET 944 @a = unpack $pat, $p; 945 is(scalar @a, 1); 946 is($a[0], 42); 947 @a = scalar unpack $pat, $p; 948 is(scalar @a, 1); 949 is($a[0], 42); 950 } 951 952 # shorts (of all flavours) didn't calculate checksums > 32 bits with floating 953 # point, so a pathologically long pattern would wrap at 32 bits. 954 my $pat = "\xff\xff"x65538; # Start with it long, to save any copying. 955 foreach (4,3,2,1,0) { 956 my $len = 65534 + $_; 957 is(unpack ("%33n$len", $pat), 65535 * $len); 958 } 959} 960 961 962# pack x X @ 963foreach ( 964 ['x', "N", "\0"], 965 ['x4', "N", "\0"x4], 966 ['xX', "N", ""], 967 ['xXa*', "Nick", "Nick"], 968 ['a5Xa5', "cameL", "llama", "camellama"], 969 ['@4', 'N', "\0"x4], 970 ['a*@8a*', 'Camel', 'Dromedary', "Camel\0\0\0Dromedary"], 971 ['a*@4a', 'Perl rules', '!', 'Perl!'], 972) 973{ 974 my ($template, @in) = @$_; 975 my $out = pop @in; 976 my $got = eval {pack $template, @in}; 977 is($@, ''); 978 is($out, $got) || 979 printf "# pack ('$template', %s) gave %s expected %s\n", 980 encode_list (@in), encode_list ($got), encode_list ($out); 981} 982 983# unpack x X @ 984foreach ( 985 ['x', "N"], 986 ['xX', "N"], 987 ['xXa*', "Nick", "Nick"], 988 ['a5Xa5', "camellama", "camel", "llama"], 989 ['@3', "ice"], 990 ['@2a2', "water", "te"], 991 ['a*@1a3', "steam", "steam", "tea"], 992) 993{ 994 my ($template, $in, @out) = @$_; 995 my @got = eval {unpack $template, $in}; 996 is($@, ''); 997 ok (list_eq (\@got, \@out)) || 998 printf "# list unpack ('$template', %s) gave %s expected %s\n", 999 _qq($in), encode_list (@got), encode_list (@out); 1000 1001 my $got = eval {unpack $template, $in}; 1002 is($@, ''); 1003 @out ? is( $got, $out[0] ) # 1 or more items; should get first 1004 : ok( !defined $got ) # 0 items; should get undef 1005 or printf "# scalar unpack ('$template', %s) gave %s expected %s\n", 1006 _qq($in), encode_list ($got), encode_list ($out[0]); 1007} 1008 1009{ 1010 my $t = 'Z*Z*'; 1011 my ($u, $v) = qw(foo xyzzy); 1012 my $p = pack($t, $u, $v); 1013 my @u = unpack($t, $p); 1014 is(scalar @u, 2); 1015 is($u[0], $u); 1016 is($u[1], $v); 1017} 1018 1019{ 1020 is((unpack("w/a*", "\x02abc"))[0], "ab"); 1021 1022 # "w/a*" should be seen as one unit 1023 1024 is(scalar unpack("w/a*", "\x02abc"), "ab"); 1025} 1026 1027print "# group modifiers\n"; 1028 1029for my $t (qw{ (s<)< (sl>s)> (s(l(sl)<l)s)< }) { 1030 print "# testing pattern '$t'\n"; 1031 eval { ($_) = unpack($t, 'x'x18); }; 1032 is($@, ''); 1033 eval { $_ = pack($t, (0)x6); }; 1034 is($@, ''); 1035} 1036 1037for my $t (qw{ (s<)> (sl>s)< (s(l(sl)<l)s)> }) { 1038 print "# testing pattern '$t'\n"; 1039 eval { ($_) = unpack($t, 'x'x18); }; 1040 like($@, qr/Can't use '[<>]' in a group with different byte-order in unpack/); 1041 eval { $_ = pack($t, (0)x6); }; 1042 like($@, qr/Can't use '[<>]' in a group with different byte-order in pack/); 1043} 1044 1045is(pack('L<L>', (0x12345678)x2), 1046 pack('(((L1)1)<)(((L)1)1)>1', (0x12345678)x2)); 1047 1048{ 1049 sub compress_template { 1050 my $t = shift; 1051 for my $mod (qw( < > )) { 1052 $t =~ s/((?:(?:[SILQJFDP]!?$mod|[^SILQJFDP\W]!?)(?:\d+|\*|\[(?:[^]]+)\])?\/?){2,})/ 1053 my $x = $1; $x =~ s!$mod!!g ? "($x)$mod" : $x /ieg; 1054 } 1055 return $t; 1056 } 1057 1058 my %templates = ( 1059 's<' => [-42], 1060 's<c2x![S]S<' => [-42, -11, 12, 4711], 1061 '(i<j<[s]l<)3' => [-11, -22, -33, 1000000, 1100, 2201, 3302, 1062 -1000000, 32767, -32768, 1, -123456789 ], 1063 '(I!<4(J<2L<)3)5' => [1 .. 65], 1064 'q<Q<' => [-50000000005, 60000000006], 1065 'f<F<d<' => [3.14159, 111.11, 2222.22], 1066 'D<cCD<' => [1e42, -128, 255, 1e-42], 1067 'n/a*' => ['/usr/bin/perl'], 1068 'C/a*S</A*L</Z*I</a*' => [qw(Just another Perl hacker)], 1069 ); 1070 1071 for my $tle (sort keys %templates) { 1072 my @d = @{$templates{$tle}}; 1073 my $tbe = $tle; 1074 $tbe =~ y/</>/; 1075 for my $t ($tbe, $tle) { 1076 my $c = compress_template($t); 1077 print "# '$t' -> '$c'\n"; 1078 SKIP: { 1079 my $p1 = eval { pack $t, @d }; 1080 skip "cannot pack '$t' on this perl", 5 if is_valid_error($@); 1081 my $p2 = eval { pack $c, @d }; 1082 is($@, ''); 1083 is($p1, $p2); 1084 s!(/[aAZ])\*!$1!g for $t, $c; 1085 my @u1 = eval { unpack $t, $p1 }; 1086 is($@, ''); 1087 my @u2 = eval { unpack $c, $p2 }; 1088 is($@, ''); 1089 is(join('!', @u1), join('!', @u2)); 1090 } 1091 } 1092 } 1093} 1094 1095{ 1096 # from Wolfgang Laun: fix in change #13163 1097 1098 my $s = 'ABC' x 10; 1099 my $t = '*'; 1100 my $x = ord($t); 1101 my $buf = pack( 'Z*/A* C', $s, $x ); 1102 my $y; 1103 1104 my $h = $buf; 1105 $h =~ s/[^[:print:]]/./g; 1106 ( $s, $y ) = unpack( "Z*/A* C", $buf ); 1107 is($h, "30.ABCABCABCABCABCABCABCABCABCABC$t"); 1108 is(length $buf, 34); 1109 is($s, "ABCABCABCABCABCABCABCABCABCABC"); 1110 is($y, $x); 1111} 1112 1113{ 1114 # from Wolfgang Laun: fix in change #13288 1115 1116 eval { my $t=unpack("P*", "abc") }; 1117 like($@, qr/'P' must have an explicit size/); 1118} 1119 1120{ # Grouping constructs 1121 my (@a, @b); 1122 @a = unpack '(SL)', pack 'SLSLSL', 67..90; 1123 is("@a", "67 68"); 1124 @a = unpack '(SL)3', pack 'SLSLSL', 67..90; 1125 @b = (67..72); 1126 is("@a", "@b"); 1127 @a = unpack '(SL)3', pack 'SLSLSLSL', 67..90; 1128 is("@a", "@b"); 1129 @a = unpack '(SL)[3]', pack 'SLSLSLSL', 67..90; 1130 is("@a", "@b"); 1131 @a = unpack '(SL)[2] SL', pack 'SLSLSLSL', 67..90; 1132 is("@a", "@b"); 1133 @a = unpack 'A/(SL)', pack 'ASLSLSLSL', 3, 67..90; 1134 is("@a", "@b"); 1135 @a = unpack 'A/(SL)SL', pack 'ASLSLSLSL', 2, 67..90; 1136 is("@a", "@b"); 1137 @a = unpack '(SL)*', pack 'SLSLSLSL', 67..90; 1138 @b = (67..74); 1139 is("@a", "@b"); 1140 @a = unpack '(SL)*SL', pack 'SLSLSLSL', 67..90; 1141 is("@a", "@b"); 1142 eval { @a = unpack '(*SL)', '' }; 1143 like($@, qr/\(\)-group starts with a count/); 1144 eval { @a = unpack '(3SL)', '' }; 1145 like($@, qr/\(\)-group starts with a count/); 1146 eval { @a = unpack '([3]SL)', '' }; 1147 like($@, qr/\(\)-group starts with a count/); 1148 eval { @a = pack '(*SL)' }; 1149 like($@, qr/\(\)-group starts with a count/); 1150 @a = unpack '(SL)3 SL', pack '(SL)4', 67..74; 1151 is("@a", "@b"); 1152 @a = unpack '(SL)3 SL', pack '(SL)[4]', 67..74; 1153 is("@a", "@b"); 1154 @a = unpack '(SL)3 SL', pack '(SL)*', 67..74; 1155 is("@a", "@b"); 1156} 1157 1158{ # more on grouping (W.Laun) 1159 # @ absolute within ()-group 1160 my $badc = pack( '(a)*', unpack( '(@1a @0a @2)*', 'abcd' ) ); 1161 is( $badc, 'badc' ); 1162 my @b = ( 1, 2, 3 ); 1163 my $buf = pack( '(@1c)((@2C)@3c)', @b ); 1164 is( $buf, "\0\1\0\0\2\3" ); 1165 my @a = unpack( '(@1c)((@2c)@3c)', $buf ); 1166 is( "@a", "@b" ); 1167 1168 # various unpack count/code scenarios 1169 my @Env = ( a => 'AAA', b => 'BBB' ); 1170 my $env = pack( 'S(S/A*S/A*)*', @Env/2, @Env ); 1171 1172 # unpack full length - ok 1173 my @pup = unpack( 'S/(S/A* S/A*)', $env ); 1174 is( "@pup", "@Env" ); 1175 1176 # warn when count/code goes beyond end of string 1177 # \0002 \0001 a \0003 AAA \0001 b \0003 BBB 1178 # 2 4 5 7 10 1213 1179 eval { @pup = unpack( 'S/(S/A* S/A*)', substr( $env, 0, 13 ) ) }; 1180 like( $@, qr{length/code after end of string} ); 1181 1182 # postfix repeat count 1183 $env = pack( '(S/A* S/A*)' . @Env/2, @Env ); 1184 1185 # warn when count/code goes beyond end of string 1186 # \0001 a \0003 AAA \0001 b \0003 BBB 1187 # 2 3c 5 8 10 11 13 16 1188 eval { @pup = unpack( '(S/A* S/A*)' . @Env/2, substr( $env, 0, 11 ) ) }; 1189 like( $@, qr{length/code after end of string} ); 1190 1191 # catch stack overflow/segfault 1192 eval { $_ = pack( ('(' x 105) . 'A' . (')' x 105) ); }; 1193 like( $@, qr{Too deeply nested \(\)-groups} ); 1194} 1195 1196{ # syntax checks (W.Laun) 1197 use warnings qw(NONFATAL all);; 1198 my @warning; 1199 local $SIG{__WARN__} = sub { 1200 push( @warning, $_[0] ); 1201 }; 1202 eval { my $s = pack( 'Ax![4c]A', 1..5 ); }; 1203 like( $@, qr{Malformed integer in \[\]} ); 1204 1205 eval { my $buf = pack( '(c/*a*)', 'AAA', 'BB' ); }; 1206 like( $@, qr{'/' does not take a repeat count} ); 1207 1208 eval { my @inf = unpack( 'c/1a', "\x03AAA\x02BB" ); }; 1209 like( $@, qr{'/' does not take a repeat count} ); 1210 1211 eval { my @inf = unpack( 'c/*a', "\x03AAA\x02BB" ); }; 1212 like( $@, qr{'/' does not take a repeat count} ); 1213 1214 # white space where possible 1215 my @Env = ( a => 'AAA', b => 'BBB' ); 1216 my $env = pack( ' S ( S / A* S / A* )* ', @Env/2, @Env ); 1217 my @pup = unpack( ' S / ( S / A* S / A* ) ', $env ); 1218 is( "@pup", "@Env" ); 1219 1220 # white space in 4 wrong places 1221 for my $temp ( 'A ![4]', 'A [4]', 'A *', 'A 4' ){ 1222 eval { my $s = pack( $temp, 'B' ); }; 1223 like( $@, qr{Invalid type } ); 1224 } 1225 1226 # warning for commas 1227 @warning = (); 1228 my $x = pack( 'I,A', 4, 'X' ); 1229 like( $warning[0], qr{Invalid type ','} ); 1230 is($x, pack( 'IA', 4, 'X' ), "Comma was ignored in pack string"); 1231 1232 # comma warning only once 1233 @warning = (); 1234 $x = pack( 'C(C,C)C,C', 65..71 ); 1235 cmp_ok( scalar(@warning), '==', 1 ); 1236 is(join(",", unpack 'C(C,,,C),C,,C', $x), join(",", 65..69), 1237 "Comma was ignored in unpack string"); 1238 1239 # forbidden code in [] 1240 eval { my $x = pack( 'A[@4]', 'XXXX' ); }; 1241 like( $@, qr{Within \[\]-length '\@' not allowed} ); 1242 1243 # @ repeat default 1 1244 my $s = pack( 'AA@A', 'A', 'B', 'C' ); 1245 my @c = unpack( 'AA@A', $s ); 1246 is( $s, 'AC' ); 1247 is( "@c", "A C C" ); 1248 1249 # no unpack code after / 1250 eval { my @a = unpack( "C/", "\3" ); }; 1251 like( $@, qr{Code missing after '/'} ); 1252 1253 # modifier warnings 1254 @warning = (); 1255 $x = pack "I>>s!!", 47, 11; 1256 ($x) = unpack "I<<l!>!>", 'x'x20; 1257 is(scalar @warning, 5); 1258 like($warning[0], qr/Duplicate modifier '>' after 'I' in pack/); 1259 like($warning[1], qr/Duplicate modifier '!' after 's' in pack/); 1260 like($warning[2], qr/Duplicate modifier '<' after 'I' in unpack/); 1261 like($warning[3], qr/Duplicate modifier '!' after 'l' in unpack/); 1262 like($warning[4], qr/Duplicate modifier '>' after 'l' in unpack/); 1263} 1264 1265{ # Repeat count [SUBEXPR] 1266 my @codes = qw( x A Z a c C W B b H h s v n S i I l V N L p P f F d 1267 s! S! i! I! l! L! j J); 1268 my $G; 1269 if (eval { pack 'q', 1 } ) { 1270 push @codes, qw(q Q); 1271 } else { 1272 push @codes, qw(s S); # Keep the count the same 1273 } 1274 if (eval { pack 'D', 1 } ) { 1275 push @codes, 'D'; 1276 } else { 1277 push @codes, 'd'; # Keep the count the same 1278 } 1279 1280 push @codes, map { /^[silqjfdp]/i ? ("$_<", "$_>") : () } @codes; 1281 1282 my %val; 1283 @val{@codes} = map { / [Xx] (?{ undef }) 1284 | [AZa] (?{ 'something' }) 1285 | C (?{ 214 }) 1286 | W (?{ 8188 }) 1287 | c (?{ 114 }) 1288 | [Bb] (?{ '101' }) 1289 | [Hh] (?{ 'b8' }) 1290 | [svnSiIlVNLqQjJ] (?{ 10111 }) 1291 | [FfDd] (?{ 1.36514538e37 }) 1292 | [pP] (?{ "try this buffer" }) 1293 /x; $^R } @codes; 1294 my @end = (0x12345678, 0x23456781, 0x35465768, 0x15263748); 1295 my $end = "N4"; 1296 1297 for my $type (@codes) { 1298 my @list = $val{$type}; 1299 @list = () unless defined $list[0]; 1300 for my $count ('', '3', '[11]') { 1301 my $c = 1; 1302 $c = $1 if $count =~ /(\d+)/; 1303 my @list1 = @list; 1304 @list1 = (@list1) x $c unless $type =~ /[XxAaZBbHhP]/; 1305 for my $groupend ('', ')2', ')[8]') { 1306 my $groupbegin = ($groupend ? '(' : ''); 1307 $c = 1; 1308 $c = $1 if $groupend =~ /(\d+)/; 1309 my @list2 = (@list1) x $c; 1310 1311 SKIP: { 1312 my $junk1 = "$groupbegin $type$count $groupend"; 1313 # print "# junk1=$junk1\n"; 1314 my $p = eval { pack $junk1, @list2 }; 1315 skip "cannot pack '$type' on this perl", 12 1316 if is_valid_error($@); 1317 die "pack $junk1 failed: $@" if $@; 1318 1319 my $half = int( (length $p)/2 ); 1320 for my $move ('', "X$half", "X!$half", 'x1', 'x!8', "x$half") { 1321 my $junk = "$junk1 $move"; 1322 # print "# junk='$junk', list=(@list2)\n"; 1323 $p = pack "$junk $end", @list2, @end; 1324 my @l = unpack "x[$junk] $end", $p; 1325 is(scalar @l, scalar @end); 1326 is("@l", "@end", "skipping x[$junk]"); 1327 } 1328 } 1329 } 1330 } 1331 } 1332} 1333 1334# / is recognized after spaces in scalar context 1335# XXXX no spaces are allowed in pack... In pack only before the slash... 1336is(scalar unpack('A /A Z20', pack 'A/A* Z20', 'bcde', 'xxxxx'), 'bcde'); 1337is(scalar unpack('A /A /A Z20', '3004bcde'), 'bcde'); 1338 1339{ # X! and x! 1340 my $t = 'C[3] x!8 C[2]'; 1341 my @a = (0x73..0x77); 1342 my $p = pack($t, @a); 1343 is($p, "\x73\x74\x75\0\0\0\0\0\x76\x77"); 1344 my @b = unpack $t, $p; 1345 is(scalar @b, scalar @a); 1346 is("@b", "@a", 'x!8'); 1347 $t = 'x[5] C[6] X!8 C[2]'; 1348 @a = (0x73..0x7a); 1349 $p = pack($t, @a); 1350 is($p, "\0\0\0\0\0\x73\x74\x75\x79\x7a"); 1351 @b = unpack $t, $p; 1352 @a = (0x73..0x75, 0x79, 0x7a, 0x79, 0x7a); 1353 is(scalar @b, scalar @a); 1354 is("@b", "@a"); 1355} 1356 1357{ # struct {char c1; double d; char cc[2];} 1358 my $t = 'C x![d] d C[2]'; 1359 my @a = (173, 1.283476517e-45, 42, 215); 1360 my $p = pack $t, @a; 1361 ok( length $p); 1362 my @b = unpack "$t X[$t] $t", $p; # Extract, step back, extract again 1363 is(scalar @b, 2 * scalar @a); 1364 $b = "@b"; 1365 $b =~ s/(?:17000+|16999+)\d+(e-0?45) /17$1 /gi; # stringification is gamble 1366 is($b, "@a @a"); 1367 1368 use warnings qw(NONFATAL all);; 1369 my $warning; 1370 local $SIG{__WARN__} = sub { 1371 $warning = $_[0]; 1372 }; 1373 @b = unpack "x[C] x[$t] X[$t] X[C] $t", "$p\0"; 1374 1375 is($warning, undef); 1376 is(scalar @b, scalar @a); 1377 $b = "@b"; 1378 $b =~ s/(?:17000+|16999+)\d+(e-0?45) /17$1 /gi; # stringification is gamble 1379 is($b, "@a"); 1380} 1381 1382is(length(pack("j", 0)), $Config{ivsize}); 1383is(length(pack("J", 0)), $Config{uvsize}); 1384is(length(pack("F", 0)), $Config{nvsize}); 1385 1386numbers ('j', -2147483648, -1, 0, 1, 2147483647); 1387numbers ('J', 0, 1, 2147483647, 2147483648, 4294967295); 1388numbers ('F', -(2**34), -1, 0, 1, 2**34); 1389SKIP: { 1390 my $t = eval { unpack("D*", pack("D", 12.34)) }; 1391 1392 skip "Long doubles not in use", 166 if $@ =~ /Invalid type/; 1393 1394 is(length(pack("D", 0)), $Config{longdblsize}); 1395 numbers ('D', -(2**34), -1, 0, 1, 2**34); 1396} 1397 1398# Maybe this knowledge needs to be "global" for all of pack.t 1399# Or a "can checksum" which would effectively be all the number types" 1400my %cant_checksum = map {$_=> 1} qw(A Z u w); 1401# not a b B h H 1402foreach my $template (qw(A Z c C s S i I l L n N v V q Q j J f d F D u U w)) { 1403 SKIP: { 1404 my $packed = eval {pack "${template}4", 1, 4, 9, 16}; 1405 if ($@) { 1406 die unless $@ =~ /Invalid type '$template'/; 1407 skip ("$template not supported on this perl", 1408 $cant_checksum{$template} ? 4 : 8); 1409 } 1410 my @unpack4 = unpack "${template}4", $packed; 1411 my @unpack = unpack "${template}*", $packed; 1412 my @unpack1 = unpack "${template}", $packed; 1413 my @unpack1s = scalar unpack "${template}", $packed; 1414 my @unpack4s = scalar unpack "${template}4", $packed; 1415 my @unpacks = scalar unpack "${template}*", $packed; 1416 1417 my @tests = ( ["${template}4 vs ${template}*", \@unpack4, \@unpack], 1418 ["scalar ${template} ${template}", \@unpack1s, \@unpack1], 1419 ["scalar ${template}4 vs ${template}", \@unpack4s, \@unpack1], 1420 ["scalar ${template}* vs ${template}", \@unpacks, \@unpack1], 1421 ); 1422 1423 unless ($cant_checksum{$template}) { 1424 my @unpack4_c = unpack "\%${template}4", $packed; 1425 my @unpack_c = unpack "\%${template}*", $packed; 1426 my @unpack1_c = unpack "\%${template}", $packed; 1427 my @unpack1s_c = scalar unpack "\%${template}", $packed; 1428 my @unpack4s_c = scalar unpack "\%${template}4", $packed; 1429 my @unpacks_c = scalar unpack "\%${template}*", $packed; 1430 1431 push @tests, 1432 ( ["% ${template}4 vs ${template}*", \@unpack4_c, \@unpack_c], 1433 ["% scalar ${template} ${template}", \@unpack1s_c, \@unpack1_c], 1434 ["% scalar ${template}4 vs ${template}*", \@unpack4s_c, \@unpack_c], 1435 ["% scalar ${template}* vs ${template}*", \@unpacks_c, \@unpack_c], 1436 ); 1437 } 1438 foreach my $test (@tests) { 1439 ok (list_eq ($test->[1], $test->[2]), $test->[0]) || 1440 printf "# unpack gave %s expected %s\n", 1441 encode_list (@{$test->[1]}), encode_list (@{$test->[2]}); 1442 } 1443 } 1444} 1445 1446ok(pack('u2', 'AA'), "[perl #8026]"); # used to hang and eat RAM in perl 5.7.2 1447 1448$_ = pack('c', 65); # 'A' would not be EBCDIC-friendly 1449is(unpack('c'), 65, "one-arg unpack (change #18751)"); # defaulting to $_ 1450 1451{ 1452 my $a = "X\x0901234567\n" x 100; # \t would not be EBCDIC TAB 1453 my @a = unpack("(a1 c/a)*", $a); 1454 is(scalar @a, 200, "[perl #15288]"); 1455 is($a[-1], "01234567\n", "[perl #15288]"); 1456 is($a[-2], "X", "[perl #15288]"); 1457} 1458 1459{ 1460 use warnings qw(NONFATAL all);; 1461 my $warning; 1462 local $SIG{__WARN__} = sub { 1463 $warning = $_[0]; 1464 }; 1465 1466 # This test is looking for the encoding of the bit pattern "\x66\x6f\x6f", 1467 # which is ASCII "foo" 1468 my $out = pack("u99", native_to_uni("foo") x 99); 1469 like($warning, qr/Field too wide in 'u' format in pack at /, 1470 "Warn about too wide uuencode"); 1471 is($out, ("_" . "9F]O" x 21 . "\n") x 4 . "M" . "9F]O" x 15 . "\n", 1472 "Use max width in case of too wide uuencode"); 1473} 1474 1475# checksums 1476{ 1477 # verify that unpack advances correctly wrt a checksum 1478 my (@x) = unpack("b10a", "abcd"); 1479 my (@y) = unpack("%b10a", "abcd"); 1480 is($x[1], $y[1], "checksum advance ok"); 1481 1482 SKIP: { 1483 skip("-- non-IEEE float", 1) if !$Config{d_double_style_ieee}; 1484 # verify that the checksum is not overflowed with C0 1485 is(unpack("C0%128U", "abcd"), unpack("U0%128U", "abcd"), "checksum not overflowed"); 1486 } 1487} 1488 1489my $U_1FFC_bytes = byte_utf8a_to_utf8n("\341\277\274"); 1490{ 1491 # U0 and C0 must be scoped 1492 my (@x) = unpack("a(U0)U", "b$U_1FFC_bytes"); 1493 is($x[0], 'b', 'before scope'); 1494 is($x[1], 8188, 'after scope'); 1495 1496 is(pack("a(U0)U", "b", 8188), "b$U_1FFC_bytes"); 1497} 1498 1499{ 1500 # counted length prefixes shouldn't change C0/U0 mode 1501 # (note the length is actually 0 in this test, as the C/ is replaced by C0 1502 # due to the \0 in the string) 1503 is(join(',', unpack("aC/UU", "b\0$U_1FFC_bytes")), 'b,8188'); 1504 is(join(',', unpack("aC/CU", "b\0$U_1FFC_bytes")), 'b,8188'); 1505 1506 # The U expects Unicode, so convert from native 1507 my $first_byte = ord substr($U_1FFC_bytes, 0, 1); 1508 1509 is(join(',', unpack("aU0C/UU", "b\0$U_1FFC_bytes")), "b,$first_byte"); 1510 is(join(',', unpack("aU0C/CU", "b\0$U_1FFC_bytes")), "b,$first_byte"); 1511} 1512 1513{ 1514 # "Z0" (bug #34062) 1515 my (@x) = unpack("C*", pack("CZ0", 1, "b")); 1516 is(join(',', @x), '1', 'pack Z0 doesn\'t destroy the character before'); 1517} 1518 1519{ 1520 # Encoding neutrality 1521 # String we will pull apart and rebuild in several ways: 1522 my $down = "\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff\x05\x06"; 1523 my $up = $down; 1524 utf8::upgrade($up); 1525 1526 my %expect = 1527 # [expected result, 1528 # how many chars it should progress, 1529 # (optional) expected result of pack] 1530 (a5 => ["\xf8\xf9\xfa\xfb\xfc", 5], 1531 A5 => ["\xf8\xf9\xfa\xfb\xfc", 5], 1532 Z5 => ["\xf8\xf9\xfa\xfb\xfc", 5, "\xf8\xf9\xfa\xfb\x00\xfd"], 1533 b21 => ["000111111001111101011", 3, "\xf8\xf9\x1a\xfb"], 1534 B21 => ["111110001111100111111", 3, "\xf8\xf9\xf8\xfb"], 1535 H5 => ["f8f9f", 3, "\xf8\xf9\xf0\xfb"], 1536 h5 => ["8f9fa", 3, "\xf8\xf9\x0a\xfb"], 1537 "s<" => [-1544, 2], 1538 "s>" => [-1799, 2], 1539 "S<" => [0xf9f8, 2], 1540 "S>" => [0xf8f9, 2], 1541 "l<" => [-67438088, 4], 1542 "l>" => [-117835013, 4], 1543 "L>" => [0xf8f9fafb, 4], 1544 "L<" => [0xfbfaf9f8, 4], 1545 n => [0xf8f9, 2], 1546 N => [0xf8f9fafb, 4], 1547 v => [63992, 2], 1548 V => [0xfbfaf9f8, 4], 1549 c => [-8, 1], 1550 U0U => [0xf8, 1], 1551 w => ["8715569050387726213", 9], 1552 q => ["-283686952306184", 8], 1553 Q => ["18446460386757245432", 8], 1554 ); 1555 1556 for my $string ($down, $up) { 1557 for my $format (sort {lc($a) cmp lc($b) || $a cmp $b } keys %expect) { 1558 SKIP: { 1559 my $expect = $expect{$format}; 1560 # unpack upgraded and downgraded string 1561 my @result = eval { unpack("$format C0 W", $string) }; 1562 skip "cannot pack/unpack '$format C0 W' on this perl", 5 if 1563 $@ && is_valid_error($@); 1564 is(@result, 2, "Two results from unpack $format C0 W"); 1565 1566 # pack to downgraded 1567 my $new = pack("$format C0 W", @result); 1568 is(length($new), $expect->[1]+1, 1569 "pack $format C0 W should give $expect->[1]+1 chars"); 1570 is($new, $expect->[2] || substr($string, 0, length $new), 1571 "pack $format C0 W returns expected value"); 1572 1573 # pack to upgraded 1574 $new = pack("a0 $format C0 W", chr(256), @result); 1575 is(length($new), $expect->[1]+1, 1576 "pack a0 $format C0 W should give $expect->[1]+1 chars"); 1577 is($new, $expect->[2] || substr($string, 0, length $new), 1578 "pack a0 $format C0 W returns expected value"); 1579 } 1580 } 1581 } 1582} 1583 1584{ 1585 # Encoding neutrality, numbers 1586 my $val = -2.68; 1587 for my $format (qw(s S i I l L j J f d F D q Q 1588 s! S! i! I! l! L! n! N! v! V!)) { 1589 SKIP: { 1590 my $down = eval { pack($format, $val) }; 1591 skip "cannot pack/unpack $format on this perl", 9 if 1592 $@ && is_valid_error($@); 1593 ok(!utf8::is_utf8($down), "Simple $format pack doesn't get upgraded"); 1594 my $up = pack("a0 $format", chr(256), $val); 1595 ok(utf8::is_utf8($up), "a0 $format with high char leads to upgrade"); 1596 is($down, $up, "$format generated strings are equal though"); 1597 my @down_expanded = unpack("$format W", $down . chr(0xce)); 1598 is(@down_expanded, 2, "Expand to two values"); 1599 is($down_expanded[1], 0xce, 1600 "unpack $format left us at the expected position"); 1601 my @up_expanded = unpack("$format W", $up . chr(0xce)); 1602 is(@up_expanded, 2, "Expand to two values"); 1603 is($up_expanded[1], 0xce, 1604 "unpack $format left us at the expected position"); 1605 is($down_expanded[0], $up_expanded[0], "$format unpack was neutral"); 1606 is(pack($format, $down_expanded[0]), $down, "Pack $format undoes unpack $format"); 1607 } 1608 } 1609} 1610 1611{ 1612 # C *is* neutral 1613 my $down = "\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff\x05\x06"; 1614 my $up = $down; 1615 utf8::upgrade($up); 1616 my @down = unpack("C*", $down); 1617 my @expect_down = (0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x05, 0x06); 1618 is("@down", "@expect_down", "byte expand"); 1619 is(pack("C*", @down), $down, "byte join"); 1620 1621 my @up = unpack("C*", $up); 1622 my @expect_up = (0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x05, 0x06); 1623 is("@up", "@expect_up", "UTF-8 expand"); 1624 is(pack("U0C0C*", @up), $up, "UTF-8 join"); 1625} 1626 1627{ 1628 # Harder cases for the neutrality test 1629 1630 # u format 1631 my $down = "\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff\x05\x06"; 1632 my $up = $down; 1633 utf8::upgrade($up); 1634 is(pack("u", $down), pack("u", $up), "u pack is neutral"); 1635 is(unpack("u", pack("u", $down)), $down, "u unpack to downgraded works"); 1636 is(unpack("U0C0u", pack("u", $down)), $up, "u unpack to upgraded works"); 1637 1638 # p/P format 1639 # This actually only tests something if the address contains a byte >= 0x80 1640 my $str = "abc\xa5\x00\xfede"; 1641 $down = pack("p", $str); 1642 is(pack("P", $str), $down); 1643 is(pack("U0C0p", $str), $down); 1644 is(pack("U0C0P", $str), $down); 1645 is(unpack("p", $down), "abc\xa5", "unpack p downgraded"); 1646 $up = $down; 1647 utf8::upgrade($up); 1648 is(unpack("p", $up), "abc\xa5", "unpack p upgraded"); 1649 1650 is(unpack("P7", $down), "abc\xa5\x00\xfed", "unpack P downgraded"); 1651 is(unpack("P7", $up), "abc\xa5\x00\xfed", "unpack P upgraded"); 1652 1653 # x, X and @ 1654 $down = "\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff\x05\x06"; 1655 $up = $down; 1656 utf8::upgrade($up); 1657 1658 is(unpack('@4W', $down), 0xfc, "\@positioning on downgraded string"); 1659 is(unpack('@4W', $up), 0xfc, "\@positioning on upgraded string"); 1660 1661 is(unpack('@4x2W', $down), 0xfe, "x moving on downgraded string"); 1662 is(unpack('@4x2W', $up), 0xfe, "x moving on upgraded string"); 1663 is(unpack('@4x!4W', $down), 0xfc, "x! moving on downgraded string"); 1664 is(unpack('@4x!4W', $up), 0xfc, "x! moving on upgraded string"); 1665 is(unpack('@5x!4W', $down), 0x05, "x! moving on downgraded string"); 1666 is(unpack('@5x!4W', $up), 0x05, "x! moving on upgraded string"); 1667 1668 is(unpack('@4X2W', $down), 0xfa, "X moving on downgraded string"); 1669 is(unpack('@4X2W', $up), 0xfa, "X moving on upgraded string"); 1670 is(unpack('@4X!4W', $down), 0xfc, "X! moving on downgraded string"); 1671 is(unpack('@4X!4W', $up), 0xfc, "X! moving on upgraded string"); 1672 is(unpack('@5X!4W', $down), 0xfc, "X! moving on downgraded string"); 1673 is(unpack('@5X!4W', $up), 0xfc, "X! moving on upgraded string"); 1674 is(unpack('@5X!8W', $down), 0xf8, "X! moving on downgraded string"); 1675 is(unpack('@5X!8W', $up), 0xf8, "X! moving on upgraded string"); 1676 1677 is(pack("W2x", 0xfa, 0xe3), "\xfa\xe3\x00", "x on downgraded string"); 1678 is(pack("W2x!4", 0xfa, 0xe3), "\xfa\xe3\x00\x00", 1679 "x! on downgraded string"); 1680 is(pack("W2x!2", 0xfa, 0xe3), "\xfa\xe3", "x! on downgraded string"); 1681 is(pack("U0C0W2x", 0xfa, 0xe3), "\xfa\xe3\x00", "x on upgraded string"); 1682 is(pack("U0C0W2x!4", 0xfa, 0xe3), "\xfa\xe3\x00\x00", 1683 "x! on upgraded string"); 1684 is(pack("U0C0W2x!2", 0xfa, 0xe3), "\xfa\xe3", "x! on upgraded string"); 1685 is(pack("W2X", 0xfa, 0xe3), "\xfa", "X on downgraded string"); 1686 is(pack("U0C0W2X", 0xfa, 0xe3), "\xfa", "X on upgraded string"); 1687 is(pack("W2X!2", 0xfa, 0xe3), "\xfa\xe3", "X! on downgraded string"); 1688 is(pack("U0C0W2X!2", 0xfa, 0xe3), "\xfa\xe3", "X! on upgraded string"); 1689 is(pack("W3X!2", 0xfa, 0xe3, 0xa6), "\xfa\xe3", "X! on downgraded string"); 1690 is(pack("U0C0W3X!2", 0xfa, 0xe3, 0xa6), "\xfa\xe3", 1691 "X! on upgraded string"); 1692 1693 # backward eating through a ( moves the group starting point backwards 1694 is(pack("a*(Xa)", "abc", "q"), "abq", 1695 "eating before strbeg moves it back"); 1696 is(pack("a*(Xa)", "ab" . chr(512), "q"), "abq", 1697 "eating before strbeg moves it back"); 1698 1699 # Check marked_upgrade 1700 is(pack('W(W(Wa@3W)@6W)@9W', 0xa1, 0xa2, 0xa3, "a", 0xa4, 0xa5, 0xa6), 1701 "\xa1\xa2\xa3a\x00\xa4\x00\xa5\x00\xa6"); 1702 $up = "a"; 1703 utf8::upgrade($up); 1704 is(pack('W(W(Wa@3W)@6W)@9W', 0xa1, 0xa2, 0xa3, $up, 0xa4, 0xa5, 0xa6), 1705 "\xa1\xa2\xa3a\x00\xa4\x00\xa5\x00\xa6", "marked upgrade caused by a"); 1706 is(pack('W(W(WW@3W)@6W)@9W', 0xa1, 0xa2, 0xa3, 256, 0xa4, 0xa5, 0xa6), 1707 "\xa1\xa2\xa3\x{100}\x00\xa4\x00\xa5\x00\xa6", 1708 "marked upgrade caused by W"); 1709 is(pack('W(W(WU0aC0@3W)@6W)@9W', 0xa1, 0xa2, 0xa3, "a", 0xa4, 0xa5, 0xa6), 1710 "\xa1\xa2\xa3a\x00\xa4\x00\xa5\x00\xa6", "marked upgrade caused by U0"); 1711 1712 # a, A and Z 1713 $down = "\xa4\xa6\xa7"; 1714 $up = $down; 1715 utf8::upgrade($up); 1716 utf8::upgrade(my $high = "\xfeb"); 1717 1718 for my $format ("a0", "A0", "Z0", "U0a0C0", "U0A0C0", "U0Z0C0") { 1719 is(pack("a* $format a*", "ab", $down, "cd"), "abcd", 1720 "$format format on plain string"); 1721 is(pack("a* $format a*", "ab", $up, "cd"), "abcd", 1722 "$format format on upgraded string"); 1723 is(pack("a* $format a*", $high, $down, "cd"), "\xfebcd", 1724 "$format format on plain string"); 1725 is(pack("a* $format a*", $high, $up, "cd"), "\xfebcd", 1726 "$format format on upgraded string"); 1727 my @down = unpack("a1 $format a*", "\xfeb"); 1728 is("@down", "\xfe b", "unpack $format"); 1729 my @up = unpack("a1 $format a*", $high); 1730 is("@up", "\xfe b", "unpack $format"); 1731 } 1732 is(pack("a1", $high), "\xfe"); 1733 is(pack("A1", $high), "\xfe"); 1734 is(pack("Z1", $high), "\x00"); 1735 is(pack("a2", $high), "\xfeb"); 1736 is(pack("A2", $high), "\xfeb"); 1737 is(pack("Z2", $high), "\xfe\x00"); 1738 is(pack("a5", $high), "\xfeb\x00\x00\x00"); 1739 is(pack("A5", $high), "\xfeb "); 1740 is(pack("Z5", $high), "\xfeb\x00\x00\x00"); 1741 is(pack("a*", $high), "\xfeb"); 1742 is(pack("A*", $high), "\xfeb"); 1743 is(pack("Z*", $high), "\xfeb\x00"); 1744 1745 utf8::upgrade($high = byte_utf8a_to_utf8n("\xc3\xbe") . "b"); 1746 is(pack("U0a2", $high), uni_to_native("\xfe")); 1747 is(pack("U0A2", $high), uni_to_native("\xfe")); 1748 is(pack("U0Z1", $high), uni_to_native("\x00")); 1749 is(pack("U0a3", $high), uni_to_native("\xfe") . "b"); 1750 is(pack("U0A3", $high), uni_to_native("\xfe") . "b"); 1751 is(pack("U0Z3", $high), uni_to_native("\xfe\x00")); 1752 is(pack("U0a6", $high), uni_to_native("\xfe") . "b" . uni_to_native("\x00\x00\x00")); 1753 is(pack("U0A6", $high), uni_to_native("\xfe") . "b "); 1754 is(pack("U0Z6", $high), uni_to_native("\xfe") . "b" . uni_to_native("\x00\x00\x00")); 1755 is(pack("U0a*", $high), uni_to_native("\xfe") . "b"); 1756 is(pack("U0A*", $high), uni_to_native("\xfe") . "b"); 1757 is(pack("U0Z*", $high), uni_to_native("\xfe") . "b" . uni_to_native("\x00")); 1758} 1759{ 1760 # pack / 1761 my @array = 1..14; 1762 my @out = unpack("N/S", pack("N/S", @array) . "abcd"); 1763 is("@out", "@array", "pack N/S works"); 1764 @out = unpack("N/S*", pack("N/S*", @array) . "abcd"); 1765 is("@out", "@array", "pack N/S* works"); 1766 @out = unpack("N/S*", pack("N/S14", @array) . "abcd"); 1767 is("@out", "@array", "pack N/S14 works"); 1768 @out = unpack("N/S*", pack("N/S15", @array) . "abcd"); 1769 is("@out", "@array", "pack N/S15 works"); 1770 @out = unpack("N/S*", pack("N/S13", @array) . "abcd"); 1771 is("@out", "@array[0..12]", "pack N/S13 works"); 1772 @out = unpack("N/S*", pack("N/S0", @array) . "abcd"); 1773 is("@out", "", "pack N/S0 works"); 1774 is(pack("Z*/a0", "abc"), "0\0", "pack Z*/a0 makes a short string"); 1775 is(pack("Z*/Z0", "abc"), "0\0", "pack Z*/Z0 makes a short string"); 1776 is(pack("Z*/a3", "abc"), "3\0abc", "pack Z*/a3 makes a full string"); 1777 is(pack("Z*/Z3", "abc"), "3\0ab\0", "pack Z*/Z3 makes a short string"); 1778 is(pack("Z*/a5", "abc"), "5\0abc\0\0", "pack Z*/a5 makes a long string"); 1779 is(pack("Z*/Z5", "abc"), "5\0abc\0\0", "pack Z*/Z5 makes a long string"); 1780 is(pack("Z*/Z"), "1\0\0", "pack Z*/Z makes an extended string"); 1781 is(pack("Z*/Z", ""), "1\0\0", "pack Z*/Z makes an extended string"); 1782 is(pack("Z*/a", ""), "0\0", "pack Z*/a makes an extended string"); 1783} 1784{ 1785 # unpack("A*", $unicode) strips general unicode spaces 1786 is(unpack("A*", "ab \n" . uni_to_native("\xa0") . " \0"), "ab \n" . uni_to_native("\xa0"), 1787 'normal A* strip leaves \xa0'); 1788 is(unpack("U0C0A*", "ab \n" . uni_to_native("\xa0") . " \0"), "ab \n" . uni_to_native("\xa0"), 1789 'normal A* strip leaves \xa0 even if it got upgraded for technical reasons'); 1790 is(unpack("A*", pack("a*(U0U)a*", "ab \n", utf8::unicode_to_native(0xa0), " \0")), "ab", 1791 'upgraded strings A* removes \xa0'); 1792 is(unpack("A*", pack("a*(U0UU)a*", "ab \n", utf8::unicode_to_native(0xa0), 0x1680, " \0")), "ab", 1793 'upgraded strings A* removes all unicode whitespace'); 1794 is(unpack("A5", pack("a*(U0U)a*", "ab \n", 0x1680, "def", "ab")), "ab", 1795 'upgraded strings A5 removes all unicode whitespace'); 1796 is(unpack("A*", pack("U", 0x1680)), "", 1797 'upgraded strings A* with nothing left'); 1798} 1799{ 1800 # Testing unpack . and .! 1801 is(unpack(".", "ABCD"), 0, "offset at start of string is 0"); 1802 is(unpack(".", ""), 0, "offset at start of empty string is 0"); 1803 is(unpack("x3.", "ABCDEF"), 3, "simple offset works"); 1804 is(unpack("x3.", "ABC"), 3, "simple offset at end of string works"); 1805 is(unpack("x3.0", "ABC"), 0, "self offset is 0"); 1806 is(unpack("x3(x2.)", "ABCDEF"), 2, "offset is relative to inner group"); 1807 is(unpack("x3(X2.)", "ABCDEF"), -2, 1808 "negative offset relative to inner group"); 1809 is(unpack("x3(X2.2)", "ABCDEF"), 1, "offset is relative to inner group"); 1810 is(unpack("x3(x2.0)", "ABCDEF"), 0, "self offset in group is still 0"); 1811 is(unpack("x3(x2.2)", "ABCDEF"), 5, "offset counts groups"); 1812 is(unpack("x3(x2.*)", "ABCDEF"), 5, "star offset is relative to start"); 1813 1814 my $high = chr(8188) x 6; 1815 is(unpack("x3(x2.)", $high), 2, "utf8 offset is relative to inner group"); 1816 is(unpack("x3(X2.)", $high), -2, 1817 "utf8 negative offset relative to inner group"); 1818 is(unpack("x3(X2.2)", $high), 1, "utf8 offset counts groups"); 1819 is(unpack("x3(x2.0)", $high), 0, "utf8 self offset in group is still 0"); 1820 is(unpack("x3(x2.2)", $high), 5, "utf8 offset counts groups"); 1821 is(unpack("x3(x2.*)", $high), 5, "utf8 star offset is relative to start"); 1822 1823 is(unpack("U0x3(x2.)", $high), 2, 1824 "U0 mode utf8 offset is relative to inner group"); 1825 is(unpack("U0x3(X2.)", $high), -2, 1826 "U0 mode utf8 negative offset relative to inner group"); 1827 is(unpack("U0x3(X2.2)", $high), 1, 1828 "U0 mode utf8 offset counts groups"); 1829 is(unpack("U0x3(x2.0)", $high), 0, 1830 "U0 mode utf8 self offset in group is still 0"); 1831 is(unpack("U0x3(x2.2)", $high), 5, 1832 "U0 mode utf8 offset counts groups"); 1833 is(unpack("U0x3(x2.*)", $high), 5, 1834 "U0 mode utf8 star offset is relative to start"); 1835 1836 is(unpack("x3(x2.!)", $high), 2*3, 1837 "utf8 offset is relative to inner group"); 1838 is(unpack("x3(X2.!)", $high), -2*3, 1839 "utf8 negative offset relative to inner group"); 1840 is(unpack("x3(X2.!2)", $high), 1*3, 1841 "utf8 offset counts groups"); 1842 is(unpack("x3(x2.!0)", $high), 0, 1843 "utf8 self offset in group is still 0"); 1844 is(unpack("x3(x2.!2)", $high), 5*3, 1845 "utf8 offset counts groups"); 1846 is(unpack("x3(x2.!*)", $high), 5*3, 1847 "utf8 star offset is relative to start"); 1848 1849 is(unpack("U0x3(x2.!)", $high), 2, 1850 "U0 mode utf8 offset is relative to inner group"); 1851 is(unpack("U0x3(X2.!)", $high), -2, 1852 "U0 mode utf8 negative offset relative to inner group"); 1853 is(unpack("U0x3(X2.!2)", $high), 1, 1854 "U0 mode utf8 offset counts groups"); 1855 is(unpack("U0x3(x2.!0)", $high), 0, 1856 "U0 mode utf8 self offset in group is still 0"); 1857 is(unpack("U0x3(x2.!2)", $high), 5, 1858 "U0 mode utf8 offset counts groups"); 1859 is(unpack("U0x3(x2.!*)", $high), 5, 1860 "U0 mode utf8 star offset is relative to start"); 1861} 1862{ 1863 # Testing pack . and .! 1864 is(pack("(a)5 .", 1..5, 3), "123", ". relative to string start, shorten"); 1865 eval { () = pack("(a)5 .", 1..5, -3) }; 1866 like($@, qr{'\.' outside of string in pack}, "Proper error message"); 1867 is(pack("(a)5 .", 1..5, 8), "12345\x00\x00\x00", 1868 ". relative to string start, extend"); 1869 is(pack("(a)5 .", 1..5, 5), "12345", ". relative to string start, keep"); 1870 1871 is(pack("(a)5 .0", 1..5, -3), "12", 1872 ". relative to string current, shorten"); 1873 is(pack("(a)5 .0", 1..5, 2), "12345\x00\x00", 1874 ". relative to string current, extend"); 1875 is(pack("(a)5 .0", 1..5, 0), "12345", 1876 ". relative to string current, keep"); 1877 1878 is(pack("(a)5 (.)", 1..5, -3), "12", 1879 ". relative to group, shorten"); 1880 is(pack("(a)5 (.)", 1..5, 2), "12345\x00\x00", 1881 ". relative to group, extend"); 1882 is(pack("(a)5 (.)", 1..5, 0), "12345", 1883 ". relative to group, keep"); 1884 1885 is(pack("(a)3 ((a)2 .)", 1..5, -2), "1", 1886 ". relative to group, shorten"); 1887 is(pack("(a)3 ((a)2 .)", 1..5, 2), "12345", 1888 ". relative to group, keep"); 1889 is(pack("(a)3 ((a)2 .)", 1..5, 4), "12345\x00\x00", 1890 ". relative to group, extend"); 1891 1892 is(pack("(a)3 ((a)2 .2)", 1..5, 2), "12", 1893 ". relative to counted group, shorten"); 1894 is(pack("(a)3 ((a)2 .2)", 1..5, 7), "12345\x00\x00", 1895 ". relative to counted group, extend"); 1896 is(pack("(a)3 ((a)2 .2)", 1..5, 5), "12345", 1897 ". relative to counted group, keep"); 1898 1899 is(pack("(a)3 ((a)2 .*)", 1..5, 2), "12", 1900 ". relative to start, shorten"); 1901 is(pack("(a)3 ((a)2 .*)", 1..5, 7), "12345\x00\x00", 1902 ". relative to start, extend"); 1903 is(pack("(a)3 ((a)2 .*)", 1..5, 5), "12345", 1904 ". relative to start, keep"); 1905 1906 is(pack('(a)5 (. @2 a)', 1..5, -3, "a"), "12\x00\x00a", 1907 ". based shrink properly updates group starts"); 1908 1909 is(pack("(W)3 ((W)2 .)", 0x301..0x305, -2), "\x{301}", 1910 "utf8 . relative to group, shorten"); 1911 is(pack("(W)3 ((W)2 .)", 0x301..0x305, 2), 1912 "\x{301}\x{302}\x{303}\x{304}\x{305}", 1913 "utf8 . relative to group, keep"); 1914 is(pack("(W)3 ((W)2 .)", 0x301..0x305, 4), 1915 "\x{301}\x{302}\x{303}\x{304}\x{305}\x00\x00", 1916 "utf8 . relative to group, extend"); 1917 1918 is(pack("(W)3 ((W)2 .!)", 0x301..0x305, -2), "\x{301}\x{302}", 1919 "utf8 . relative to group, shorten"); 1920 is(pack("(W)3 ((W)2 .!)", 0x301..0x305, 4), 1921 "\x{301}\x{302}\x{303}\x{304}\x{305}", 1922 "utf8 . relative to group, keep"); 1923 is(pack("(W)3 ((W)2 .!)", 0x301..0x305, 6), 1924 "\x{301}\x{302}\x{303}\x{304}\x{305}\x00\x00", 1925 "utf8 . relative to group, extend"); 1926 1927 is(pack('(W)5 (. @2 a)', 0x301..0x305, -3, "a"), 1928 "\x{301}\x{302}\x00\x00a", 1929 "utf8 . based shrink properly updates group starts"); 1930} 1931{ 1932 # Testing @! 1933 is(pack('a* @3', "abcde"), "abc", 'Test basic @'); 1934 is(pack('a* @!3', "abcde"), "abc", 'Test basic @!'); 1935 is(pack('a* @2', "\x{301}\x{302}\x{303}\x{304}\x{305}"), "\x{301}\x{302}", 1936 'Test basic utf8 @'); 1937 is(pack('a* @!2', "\x{301}\x{302}\x{303}\x{304}\x{305}"), "\x{301}", 1938 'Test basic utf8 @!'); 1939 1940 is(unpack('@4 a*', "abcde"), "e", 'Test basic @'); 1941 is(unpack('@!4 a*', "abcde"), "e", 'Test basic @!'); 1942 is(unpack('@4 a*', "\x{301}\x{302}\x{303}\x{304}\x{305}"), "\x{305}", 1943 'Test basic utf8 @'); 1944 is(unpack('@!4 a*', "\x{301}\x{302}\x{303}\x{304}\x{305}"), 1945 "\x{303}\x{304}\x{305}", 'Test basic utf8 @!'); 1946} 1947{ 1948 #50256 1949 # This test is for the bit pattern "\x61\x62", which is ASCII "ab" 1950 my ($v) = split //, unpack ('(B)*', native_to_uni('ab')); 1951 is($v, 0); # Doesn't SEGV :-) 1952} 1953{ 1954 #73814 1955 my $x = runperl( prog => 'print split( /,/, unpack(q(%2H*), q(hello world))), qq(\n)' ); 1956 is($x, "0\n", "split /a/, unpack('%2H*'...) didn't crash"); 1957 1958 my $y = runperl( prog => 'print split( /,/, unpack(q(%32u*), q(#,3,Q)), qq(\n)), qq(\n)' ); 1959 is($y, "0\n", "split /a/, unpack('%32u*'...) didn't crash"); 1960} 1961 1962#90160 1963is(eval { () = unpack "C0 U*", ""; "ok" }, "ok", 1964 'medial U* on empty string'); 1965 1966package o { 1967 use overload 1968 '""' => sub { ++$o::str; "42" }, 1969 '0+' => sub { ++$o::num; 42 }; 1970} 1971is pack("c", bless [], "o"), chr(42), 'overloading called'; 1972is $o::str, undef, 'pack "c" does not call string overloading'; 1973is $o::num, 1, 'pack "c" does call num overloading'; 1974 1975#[perl #123874]: argument underflow leads to corrupt length 1976eval q{ pack "pi/x" }; 1977ok(1, "argument underflow did not crash"); 1978 1979{ 1980 # [perl #126325] pack [hH] with a unicode string 1981 # the hex encoders would read past the end of the string, using 1982 # invalid source bytes 1983 my $twenty_nuls = "\0" x 20; 1984 # This is the case that failed 1985 is(pack("WH40", 0x100, ""), "\x{100}$twenty_nuls", 1986 "check pack H zero fills (utf8 target)"); 1987 my $up_nul = "\0"; 1988 1989 utf8::upgrade($up_nul); 1990 # check the other combinations too 1991 is(pack("WH40", 0x100, $up_nul), "\x{100}$twenty_nuls", 1992 "check pack H zero fills (utf8 target/source)"); 1993 is(pack("H40", ""), $twenty_nuls, 1994 "check pack H zero fills (utf8 none)"); 1995 is(pack("H40", $up_nul), $twenty_nuls, 1996 "check pack H zero fills (utf8 source)"); 1997} 1998 1999SKIP: 2000{ 2001 # [perl #129149] the code below would write one past the end of the output 2002 # buffer, only detected by ASAN, not by valgrind 2003 skip "ASCII-centric test",1 if $::IS_EBCDIC; 2004 $Config{ivsize} >= 8 2005 or skip "[perl #129149] need 64-bit for this test", 1; 2006 fresh_perl_is(<<'EOS', "ok\n", { stderr => 1 }, "pack W overflow"); 2007print pack("ucW", "0000", 0, 140737488355327) eq "\$,#`P,```\n\0\x{7fffffffffff}" 2008 ? "ok\n" : "not ok\n"; 2009EOS 2010} 2011 2012SKIP: 2013{ 2014 # [perl #131844] pointer addition overflow 2015 $Config{ptrsize} == 4 2016 or skip "[perl #131844] need 32-bit build for this test", 4; 2017 # prevent ASAN just crashing on the allocation failure 2018 local $ENV{ASAN_OPTIONS} = $ENV{ASAN_OPTIONS}; 2019 $ENV{ASAN_OPTIONS} .= ",allocator_may_return_null=1"; 2020 fresh_perl_like('pack "f999999999"', qr/Out of memory during pack/, { stderr => 1 }, 2021 "pointer addition overflow"); 2022 2023 # integer (STRLEN) overflow from addition of glen to current length 2024 fresh_perl_like('pack "c10f1073741823"', qr/Out of memory during pack/, { stderr => 1 }, 2025 "integer overflow calculating allocation (addition)"); 2026 2027 fresh_perl_like('pack "W10f536870913", 256', qr/Out of memory during pack/, { stderr => 1 }, 2028 "integer overflow calculating allocation (utf8)"); 2029 2030 fresh_perl_like('pack "c10f1073741824"', qr/Out of memory during pack/, { stderr => 1 }, 2031 "integer overflow calculating allocation (multiply)"); 2032} 2033 2034{ 2035 # [perl #132655] heap-buffer-overflow READ of size 11 2036 # only expect failure under ASAN (and maybe valgrind) 2037 fresh_perl_is('0.0 + unpack("u", "ab")', "", { stderr => 1 }, 2038 "ensure unpack u of invalid data nul terminates result"); 2039} 2040 2041{ 2042 # [GH #16319] SEGV caused by recursion 2043 my $x = eval { pack "[" x 1_000_000 }; 2044 like("$@", qr{No group ending character \Q']'\E found in template}, 2045 "many opening brackets should not smash the stack"); 2046 2047 $x = eval { pack "[(][)]" }; 2048 like("$@", qr{Mismatched brackets in template}, 2049 "should match brackets correctly even without recursion"); 2050} 2051