1 /* Copyright (C) 2004-2015 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
31 #include <sys/select.h>
32 #include <sys/socket.h>
36 #define obstack_chunk_alloc malloc
37 #define obstack_chunk_free free
40 static void do_prepare (void);
41 static int do_test (void);
42 #define PREPARE(argc, argv) do_prepare ()
43 #define TEST_FUNCTION do_test ()
44 #include "../test-skeleton.c"
49 int temp_fd = create_temp_file ("tst-chk1.", &temp_filename);
52 printf ("cannot create temporary file: %m\n");
56 const char *strs = "abcdefgh\nABCDEFGHI\nabcdefghij\nABCDEFGHIJ";
57 if ((size_t) write (temp_fd, strs, strlen (strs)) != strlen (strs))
59 puts ("could not write test strings into file");
60 unlink (temp_filename);
65 volatile int chk_fail_ok;
75 longjmp (chk_fail_buf, 1);
86 const char *str1 = "JIHGFEDCBA";
87 const char *str2 = "F";
88 const char *str3 = "%s%n%s%n";
89 const char *str4 = "Hello, ";
90 const char *str5 = "World!\n";
91 const wchar_t *wstr1 = L"JIHGFEDCBA";
92 const wchar_t *wstr2 = L"F";
93 const wchar_t *wstr3 = L"%s%n%s%n";
94 const wchar_t *wstr4 = L"Hello, ";
95 const wchar_t *wstr5 = L"World!\n";
101 do { printf ("Failure on line %d\n", __LINE__); ret = 1; } while (0)
102 #define CHK_FAIL_START \
104 if (! setjmp (chk_fail_buf)) \
106 #define CHK_FAIL_END \
110 #if __USE_FORTIFY_LEVEL >= 2 && (!defined __cplusplus || defined __va_arg_pack)
111 # define CHK_FAIL2_START CHK_FAIL_START
112 # define CHK_FAIL2_END CHK_FAIL_END
114 # define CHK_FAIL2_START
115 # define CHK_FAIL2_END
121 set_fortify_handler (handler);
123 struct A { char buf1[9]; char buf2[1]; } a;
124 struct wA { wchar_t buf1[9]; wchar_t buf2[1]; } wa;
126 printf ("Test checking routines at fortify level %d\n",
127 #ifdef __USE_FORTIFY_LEVEL
128 (int) __USE_FORTIFY_LEVEL
134 #if defined __USE_FORTIFY_LEVEL && !defined __fortify_function
135 printf ("Test skipped");
140 /* These ops can be done without runtime checking of object size. */
141 memcpy (buf, "abcdefghij", 10);
142 memmove (buf + 1, buf, 9);
143 if (memcmp (buf, "aabcdefghi", 10))
146 if (mempcpy (buf + 5, "abcde", 5) != buf + 10
147 || memcmp (buf, "aabcdabcde", 10))
150 memset (buf + 8, 'j', 2);
151 if (memcmp (buf, "aabcdabcjj", 10))
154 strcpy (buf + 4, "EDCBA");
155 if (memcmp (buf, "aabcEDCBA", 10))
158 if (stpcpy (buf + 8, "F") != buf + 9 || memcmp (buf, "aabcEDCBF", 10))
161 strncpy (buf + 6, "X", 4);
162 if (memcmp (buf, "aabcEDX\0\0", 10))
165 if (sprintf (buf + 7, "%s", "67") != 2 || memcmp (buf, "aabcEDX67", 10))
168 if (snprintf (buf + 7, 3, "%s", "987654") != 6
169 || memcmp (buf, "aabcEDX98", 10))
172 /* These ops need runtime checking, but shouldn't __chk_fail. */
173 memcpy (buf, "abcdefghij", l0 + 10);
174 memmove (buf + 1, buf, l0 + 9);
175 if (memcmp (buf, "aabcdefghi", 10))
178 if (mempcpy (buf + 5, "abcde", l0 + 5) != buf + 10
179 || memcmp (buf, "aabcdabcde", 10))
182 memset (buf + 8, 'j', l0 + 2);
183 if (memcmp (buf, "aabcdabcjj", 10))
186 strcpy (buf + 4, str1 + 5);
187 if (memcmp (buf, "aabcEDCBA", 10))
190 if (stpcpy (buf + 8, str2) != buf + 9 || memcmp (buf, "aabcEDCBF", 10))
193 strncpy (buf + 6, "X", l0 + 4);
194 if (memcmp (buf, "aabcEDX\0\0", 10))
197 if (stpncpy (buf + 5, "cd", l0 + 5) != buf + 7
198 || memcmp (buf, "aabcEcd\0\0", 10))
201 if (sprintf (buf + 7, "%d", num1) != 2 || memcmp (buf, "aabcEcd67", 10))
204 if (snprintf (buf + 7, 3, "%d", num2) != 6 || memcmp (buf, "aabcEcd98", 10))
209 if (memcmp (buf, "aabcEcd9A", 10))
213 strncat (buf, "ZYXWV", l0 + 2);
214 if (memcmp (buf, "aabcEcdZY", 10))
217 memcpy (a.buf1, "abcdefghij", l0 + 10);
218 memmove (a.buf1 + 1, a.buf1, l0 + 9);
219 if (memcmp (a.buf1, "aabcdefghi", 10))
222 if (mempcpy (a.buf1 + 5, "abcde", l0 + 5) != a.buf1 + 10
223 || memcmp (a.buf1, "aabcdabcde", 10))
226 memset (a.buf1 + 8, 'j', l0 + 2);
227 if (memcmp (a.buf1, "aabcdabcjj", 10))
230 #if __USE_FORTIFY_LEVEL < 2
231 /* The following tests are supposed to crash with -D_FORTIFY_SOURCE=2
232 and sufficient GCC support, as the string operations overflow
233 from a.buf1 into a.buf2. */
234 strcpy (a.buf1 + 4, str1 + 5);
235 if (memcmp (a.buf1, "aabcEDCBA", 10))
238 if (stpcpy (a.buf1 + 8, str2) != a.buf1 + 9
239 || memcmp (a.buf1, "aabcEDCBF", 10))
242 strncpy (a.buf1 + 6, "X", l0 + 4);
243 if (memcmp (a.buf1, "aabcEDX\0\0", 10))
246 if (sprintf (a.buf1 + 7, "%d", num1) != 2
247 || memcmp (a.buf1, "aabcEDX67", 10))
250 if (snprintf (a.buf1 + 7, 3, "%d", num2) != 6
251 || memcmp (a.buf1, "aabcEDX98", 10))
254 a.buf1[l0 + 8] = '\0';
255 strcat (a.buf1, "A");
256 if (memcmp (a.buf1, "aabcEDX9A", 10))
259 a.buf1[l0 + 7] = '\0';
260 strncat (a.buf1, "ZYXWV", l0 + 2);
261 if (memcmp (a.buf1, "aabcEDXZY", 10))
266 #if __USE_FORTIFY_LEVEL >= 1
267 /* Now check if all buffer overflows are caught at runtime.
268 N.B. All tests involving a length parameter need to be done
269 twice: once with the length a compile-time constant, once without. */
272 memcpy (buf + 1, "abcdefghij", 10);
276 memcpy (buf + 1, "abcdefghij", l0 + 10);
280 memmove (buf + 2, buf + 1, 9);
284 memmove (buf + 2, buf + 1, l0 + 9);
288 p = (char *) mempcpy (buf + 6, "abcde", 5);
292 p = (char *) mempcpy (buf + 6, "abcde", l0 + 5);
296 memset (buf + 9, 'j', 2);
300 memset (buf + 9, 'j', l0 + 2);
304 strcpy (buf + 5, str1 + 5);
308 p = stpcpy (buf + 9, str2);
312 strncpy (buf + 7, "X", 4);
316 strncpy (buf + 7, "X", l0 + 4);
320 stpncpy (buf + 6, "cd", 5);
324 stpncpy (buf + 6, "cd", l0 + 5);
327 # if !defined __cplusplus || defined __va_arg_pack
329 sprintf (buf + 8, "%d", num1);
333 snprintf (buf + 8, 3, "%d", num2);
337 snprintf (buf + 8, l0 + 3, "%d", num2);
341 swprintf (wbuf + 8, 3, L"%d", num1);
345 swprintf (wbuf + 8, l0 + 3, L"%d", num1);
349 memcpy (buf, str1 + 2, 9);
354 memcpy (buf, str1 + 3, 8);
356 strncat (buf, "ZYXWV", 3);
359 memcpy (buf, str1 + 3, 8);
361 strncat (buf, "ZYXWV", l0 + 3);
365 memcpy (a.buf1 + 1, "abcdefghij", 10);
369 memcpy (a.buf1 + 1, "abcdefghij", l0 + 10);
373 memmove (a.buf1 + 2, a.buf1 + 1, 9);
377 memmove (a.buf1 + 2, a.buf1 + 1, l0 + 9);
381 p = (char *) mempcpy (a.buf1 + 6, "abcde", 5);
385 p = (char *) mempcpy (a.buf1 + 6, "abcde", l0 + 5);
389 memset (a.buf1 + 9, 'j', 2);
393 memset (a.buf1 + 9, 'j', l0 + 2);
396 # if __USE_FORTIFY_LEVEL >= 2
403 strcpy (a.buf1 + (O + 4), str1 + 5);
407 p = stpcpy (a.buf1 + (O + 8), str2);
411 strncpy (a.buf1 + (O + 6), "X", 4);
415 strncpy (a.buf1 + (O + 6), "X", l0 + 4);
418 # if !defined __cplusplus || defined __va_arg_pack
420 sprintf (a.buf1 + (O + 7), "%d", num1);
424 snprintf (a.buf1 + (O + 7), 3, "%d", num2);
428 snprintf (a.buf1 + (O + 7), l0 + 3, "%d", num2);
432 memcpy (a.buf1, str1 + (3 - O), 8 + O);
434 strcat (a.buf1, "AB");
437 memcpy (a.buf1, str1 + (4 - O), 7 + O);
439 strncat (a.buf1, "ZYXWV", l0 + 3);
444 /* These ops can be done without runtime checking of object size. */
445 wmemcpy (wbuf, L"abcdefghij", 10);
446 wmemmove (wbuf + 1, wbuf, 9);
447 if (wmemcmp (wbuf, L"aabcdefghi", 10))
450 if (wmempcpy (wbuf + 5, L"abcde", 5) != wbuf + 10
451 || wmemcmp (wbuf, L"aabcdabcde", 10))
454 wmemset (wbuf + 8, L'j', 2);
455 if (wmemcmp (wbuf, L"aabcdabcjj", 10))
458 wcscpy (wbuf + 4, L"EDCBA");
459 if (wmemcmp (wbuf, L"aabcEDCBA", 10))
462 if (wcpcpy (wbuf + 8, L"F") != wbuf + 9 || wmemcmp (wbuf, L"aabcEDCBF", 10))
465 wcsncpy (wbuf + 6, L"X", 4);
466 if (wmemcmp (wbuf, L"aabcEDX\0\0", 10))
469 if (swprintf (wbuf + 7, 3, L"%ls", L"987654") >= 0
470 || wmemcmp (wbuf, L"aabcEDX98", 10))
473 if (swprintf (wbuf + 7, 3, L"64") != 2
474 || wmemcmp (wbuf, L"aabcEDX64", 10))
477 /* These ops need runtime checking, but shouldn't __chk_fail. */
478 wmemcpy (wbuf, L"abcdefghij", l0 + 10);
479 wmemmove (wbuf + 1, wbuf, l0 + 9);
480 if (wmemcmp (wbuf, L"aabcdefghi", 10))
483 if (wmempcpy (wbuf + 5, L"abcde", l0 + 5) != wbuf + 10
484 || wmemcmp (wbuf, L"aabcdabcde", 10))
487 wmemset (wbuf + 8, L'j', l0 + 2);
488 if (wmemcmp (wbuf, L"aabcdabcjj", 10))
491 wcscpy (wbuf + 4, wstr1 + 5);
492 if (wmemcmp (wbuf, L"aabcEDCBA", 10))
495 if (wcpcpy (wbuf + 8, wstr2) != wbuf + 9 || wmemcmp (wbuf, L"aabcEDCBF", 10))
498 wcsncpy (wbuf + 6, L"X", l0 + 4);
499 if (wmemcmp (wbuf, L"aabcEDX\0\0", 10))
502 if (wcpncpy (wbuf + 5, L"cd", l0 + 5) != wbuf + 7
503 || wmemcmp (wbuf, L"aabcEcd\0\0", 10))
506 if (swprintf (wbuf + 7, 3, L"%d", num2) >= 0
507 || wmemcmp (wbuf, L"aabcEcd98", 10))
510 wbuf[l0 + 8] = L'\0';
512 if (wmemcmp (wbuf, L"aabcEcd9A", 10))
515 wbuf[l0 + 7] = L'\0';
516 wcsncat (wbuf, L"ZYXWV", l0 + 2);
517 if (wmemcmp (wbuf, L"aabcEcdZY", 10))
520 wmemcpy (wa.buf1, L"abcdefghij", l0 + 10);
521 wmemmove (wa.buf1 + 1, wa.buf1, l0 + 9);
522 if (wmemcmp (wa.buf1, L"aabcdefghi", 10))
525 if (wmempcpy (wa.buf1 + 5, L"abcde", l0 + 5) != wa.buf1 + 10
526 || wmemcmp (wa.buf1, L"aabcdabcde", 10))
529 wmemset (wa.buf1 + 8, L'j', l0 + 2);
530 if (wmemcmp (wa.buf1, L"aabcdabcjj", 10))
533 #if __USE_FORTIFY_LEVEL < 2
534 /* The following tests are supposed to crash with -D_FORTIFY_SOURCE=2
535 and sufficient GCC support, as the string operations overflow
536 from a.buf1 into a.buf2. */
537 wcscpy (wa.buf1 + 4, wstr1 + 5);
538 if (wmemcmp (wa.buf1, L"aabcEDCBA", 10))
541 if (wcpcpy (wa.buf1 + 8, wstr2) != wa.buf1 + 9
542 || wmemcmp (wa.buf1, L"aabcEDCBF", 10))
545 wcsncpy (wa.buf1 + 6, L"X", l0 + 4);
546 if (wmemcmp (wa.buf1, L"aabcEDX\0\0", 10))
549 if (swprintf (wa.buf1 + 7, 3, L"%d", num2) >= 0
550 || wmemcmp (wa.buf1, L"aabcEDX98", 10))
553 wa.buf1[l0 + 8] = L'\0';
554 wcscat (wa.buf1, L"A");
555 if (wmemcmp (wa.buf1, L"aabcEDX9A", 10))
558 wa.buf1[l0 + 7] = L'\0';
559 wcsncat (wa.buf1, L"ZYXWV", l0 + 2);
560 if (wmemcmp (wa.buf1, L"aabcEDXZY", 10))
565 #if __USE_FORTIFY_LEVEL >= 1
566 /* Now check if all buffer overflows are caught at runtime.
567 N.B. All tests involving a length parameter need to be done
568 twice: once with the length a compile-time constant, once without. */
571 wmemcpy (wbuf + 1, L"abcdefghij", 10);
575 wmemcpy (wbuf + 1, L"abcdefghij", l0 + 10);
579 wmemcpy (wbuf + 9, L"abcdefghij", 10);
583 wmemcpy (wbuf + 9, L"abcdefghij", l0 + 10);
587 wmemmove (wbuf + 2, wbuf + 1, 9);
591 wmemmove (wbuf + 2, wbuf + 1, l0 + 9);
595 wp = wmempcpy (wbuf + 6, L"abcde", 5);
599 wp = wmempcpy (wbuf + 6, L"abcde", l0 + 5);
603 wmemset (wbuf + 9, L'j', 2);
607 wmemset (wbuf + 9, L'j', l0 + 2);
611 wcscpy (wbuf + 5, wstr1 + 5);
615 wp = wcpcpy (wbuf + 9, wstr2);
619 wcsncpy (wbuf + 7, L"X", 4);
623 wcsncpy (wbuf + 7, L"X", l0 + 4);
627 wcsncpy (wbuf + 9, L"XABCDEFGH", 8);
631 wcpncpy (wbuf + 9, L"XABCDEFGH", 8);
635 wcpncpy (wbuf + 6, L"cd", 5);
639 wcpncpy (wbuf + 6, L"cd", l0 + 5);
642 wmemcpy (wbuf, wstr1 + 2, 9);
644 wcscat (wbuf, L"AB");
647 wmemcpy (wbuf, wstr1 + 3, 8);
649 wcsncat (wbuf, L"ZYXWV", l0 + 3);
653 wmemcpy (wa.buf1 + 1, L"abcdefghij", 10);
657 wmemcpy (wa.buf1 + 1, L"abcdefghij", l0 + 10);
661 wmemmove (wa.buf1 + 2, wa.buf1 + 1, 9);
665 wmemmove (wa.buf1 + 2, wa.buf1 + 1, l0 + 9);
669 wp = wmempcpy (wa.buf1 + 6, L"abcde", 5);
673 wp = wmempcpy (wa.buf1 + 6, L"abcde", l0 + 5);
677 wmemset (wa.buf1 + 9, L'j', 2);
681 wmemset (wa.buf1 + 9, L'j', l0 + 2);
684 #if __USE_FORTIFY_LEVEL >= 2
691 wcscpy (wa.buf1 + (O + 4), wstr1 + 5);
695 wp = wcpcpy (wa.buf1 + (O + 8), wstr2);
699 wcsncpy (wa.buf1 + (O + 6), L"X", 4);
703 wcsncpy (wa.buf1 + (O + 6), L"X", l0 + 4);
706 wmemcpy (wa.buf1, wstr1 + (3 - O), 8 + O);
708 wcscat (wa.buf1, L"AB");
711 wmemcpy (wa.buf1, wstr1 + (4 - O), 7 + O);
713 wcsncat (wa.buf1, L"ZYXWV", l0 + 3);
718 /* Now checks for %n protection. */
720 /* Constant literals passed directly are always ok
721 (even with warnings about possible bugs from GCC). */
723 if (sprintf (buf, "%s%n%s%n", str2, &n1, str2, &n2) != 2
724 || n1 != 1 || n2 != 2)
727 /* In this case the format string is not known at compile time,
728 but resides in read-only memory, so is ok. */
729 if (snprintf (buf, 4, str3, str2, &n1, str2, &n2) != 2
730 || n1 != 1 || n2 != 2)
733 strcpy (buf2 + 2, "%n%s%n");
734 /* When the format string is writable and contains %n,
735 with -D_FORTIFY_SOURCE=2 it causes __chk_fail. */
737 if (sprintf (buf, buf2, str2, &n1, str2, &n1) != 2)
742 if (snprintf (buf, 3, buf2, str2, &n1, str2, &n1) != 2)
746 /* But if there is no %n, even writable format string
749 if (sprintf (buf, buf2 + 4, str2) != 1)
752 /* Constant literals passed directly are always ok
753 (even with warnings about possible bugs from GCC). */
754 if (printf ("%s%n%s%n", str4, &n1, str5, &n2) != 14
755 || n1 != 7 || n2 != 14)
758 /* In this case the format string is not known at compile time,
759 but resides in read-only memory, so is ok. */
760 if (printf (str3, str4, &n1, str5, &n2) != 14
761 || n1 != 7 || n2 != 14)
764 strcpy (buf2 + 2, "%n%s%n");
765 /* When the format string is writable and contains %n,
766 with -D_FORTIFY_SOURCE=2 it causes __chk_fail. */
768 if (printf (buf2, str4, &n1, str5, &n1) != 14)
772 /* But if there is no %n, even writable format string
775 if (printf (buf2 + 4, str5) != 7)
780 /* Constant literals passed directly are always ok
781 (even with warnings about possible bugs from GCC). */
782 if (fprintf (fp, "%s%n%s%n", str4, &n1, str5, &n2) != 14
783 || n1 != 7 || n2 != 14)
786 /* In this case the format string is not known at compile time,
787 but resides in read-only memory, so is ok. */
788 if (fprintf (fp, str3, str4, &n1, str5, &n2) != 14
789 || n1 != 7 || n2 != 14)
792 strcpy (buf2 + 2, "%n%s%n");
793 /* When the format string is writable and contains %n,
794 with -D_FORTIFY_SOURCE=2 it causes __chk_fail. */
796 if (fprintf (fp, buf2, str4, &n1, str5, &n1) != 14)
800 /* But if there is no %n, even writable format string
803 if (fprintf (fp, buf2 + 4, str5) != 7)
807 strcpy (buf2 + 2, "%n%s%n");
808 /* When the format string is writable and contains %n,
809 with -D_FORTIFY_SOURCE=2 it causes __chk_fail. */
811 if (asprintf (&my_ptr, buf2, str4, &n1, str5, &n1) != 14)
820 if (obstack_printf (&obs, buf2, str4, &n1, str5, &n1) != 14)
823 obstack_free (&obs, NULL);
826 if (asprintf (&my_ptr, "%s%n%s%n", str4, &n1, str5, &n1) != 14)
832 if (obstack_printf (&obs, "%s%n%s%n", str4, &n1, str5, &n1) != 14)
834 obstack_free (&obs, NULL);
836 if (freopen (temp_filename, "r", stdin) == NULL)
838 puts ("could not open temporary file");
842 if (gets (buf) != buf || memcmp (buf, "abcdefgh", 9))
844 if (gets (buf) != buf || memcmp (buf, "ABCDEFGHI", 10))
847 #if __USE_FORTIFY_LEVEL >= 1
849 if (gets (buf) != buf)
856 if (fgets (buf, sizeof (buf), stdin) != buf
857 || memcmp (buf, "abcdefgh\n", 10))
859 if (fgets (buf, sizeof (buf), stdin) != buf || memcmp (buf, "ABCDEFGHI", 10))
864 if (fgets (buf, l0 + sizeof (buf), stdin) != buf
865 || memcmp (buf, "abcdefgh\n", 10))
868 #if __USE_FORTIFY_LEVEL >= 1
870 if (fgets (buf, sizeof (buf) + 1, stdin) != buf)
875 if (fgets (buf, l0 + sizeof (buf) + 1, stdin) != buf)
882 if (fgets_unlocked (buf, sizeof (buf), stdin) != buf
883 || memcmp (buf, "abcdefgh\n", 10))
885 if (fgets_unlocked (buf, sizeof (buf), stdin) != buf
886 || memcmp (buf, "ABCDEFGHI", 10))
891 if (fgets_unlocked (buf, l0 + sizeof (buf), stdin) != buf
892 || memcmp (buf, "abcdefgh\n", 10))
895 #if __USE_FORTIFY_LEVEL >= 1
897 if (fgets_unlocked (buf, sizeof (buf) + 1, stdin) != buf)
902 if (fgets_unlocked (buf, l0 + sizeof (buf) + 1, stdin) != buf)
909 if (fread (buf, 1, sizeof (buf), stdin) != sizeof (buf)
910 || memcmp (buf, "abcdefgh\nA", 10))
912 if (fread (buf, sizeof (buf), 1, stdin) != 1
913 || memcmp (buf, "BCDEFGHI\na", 10))
918 if (fread (buf, l0 + 1, sizeof (buf), stdin) != sizeof (buf)
919 || memcmp (buf, "abcdefgh\nA", 10))
921 if (fread (buf, sizeof (buf), l0 + 1, stdin) != 1
922 || memcmp (buf, "BCDEFGHI\na", 10))
925 #if __USE_FORTIFY_LEVEL >= 1
927 if (fread (buf, 1, sizeof (buf) + 1, stdin) != sizeof (buf) + 1)
932 if (fread (buf, sizeof (buf) + 1, l0 + 1, stdin) != 1)
939 if (fread_unlocked (buf, 1, sizeof (buf), stdin) != sizeof (buf)
940 || memcmp (buf, "abcdefgh\nA", 10))
942 if (fread_unlocked (buf, sizeof (buf), 1, stdin) != 1
943 || memcmp (buf, "BCDEFGHI\na", 10))
948 if (fread_unlocked (buf, 1, 4, stdin) != 4
949 || memcmp (buf, "abcdFGHI\na", 10))
951 if (fread_unlocked (buf, 4, 1, stdin) != 1
952 || memcmp (buf, "efghFGHI\na", 10))
957 if (fread_unlocked (buf, l0 + 1, sizeof (buf), stdin) != sizeof (buf)
958 || memcmp (buf, "abcdefgh\nA", 10))
960 if (fread_unlocked (buf, sizeof (buf), l0 + 1, stdin) != 1
961 || memcmp (buf, "BCDEFGHI\na", 10))
964 #if __USE_FORTIFY_LEVEL >= 1
966 if (fread_unlocked (buf, 1, sizeof (buf) + 1, stdin) != sizeof (buf) + 1)
971 if (fread_unlocked (buf, sizeof (buf) + 1, l0 + 1, stdin) != 1)
976 lseek (fileno (stdin), 0, SEEK_SET);
978 if (read (fileno (stdin), buf, sizeof (buf) - 1) != sizeof (buf) - 1
979 || memcmp (buf, "abcdefgh\n", 9))
981 if (read (fileno (stdin), buf, sizeof (buf) - 1) != sizeof (buf) - 1
982 || memcmp (buf, "ABCDEFGHI", 9))
985 lseek (fileno (stdin), 0, SEEK_SET);
987 if (read (fileno (stdin), buf, l0 + sizeof (buf) - 1) != sizeof (buf) - 1
988 || memcmp (buf, "abcdefgh\n", 9))
991 #if __USE_FORTIFY_LEVEL >= 1
993 if (read (fileno (stdin), buf, sizeof (buf) + 1) != sizeof (buf) + 1)
998 if (read (fileno (stdin), buf, l0 + sizeof (buf) + 1) != sizeof (buf) + 1)
1003 if (pread (fileno (stdin), buf, sizeof (buf) - 1, sizeof (buf) - 2)
1005 || memcmp (buf, "\nABCDEFGH", 9))
1007 if (pread (fileno (stdin), buf, sizeof (buf) - 1, 0) != sizeof (buf) - 1
1008 || memcmp (buf, "abcdefgh\n", 9))
1010 if (pread (fileno (stdin), buf, l0 + sizeof (buf) - 1, sizeof (buf) - 3)
1012 || memcmp (buf, "h\nABCDEFG", 9))
1015 #if __USE_FORTIFY_LEVEL >= 1
1017 if (pread (fileno (stdin), buf, sizeof (buf) + 1, 2 * sizeof (buf))
1018 != sizeof (buf) + 1)
1023 if (pread (fileno (stdin), buf, l0 + sizeof (buf) + 1, 2 * sizeof (buf))
1024 != sizeof (buf) + 1)
1029 if (pread64 (fileno (stdin), buf, sizeof (buf) - 1, sizeof (buf) - 2)
1031 || memcmp (buf, "\nABCDEFGH", 9))
1033 if (pread64 (fileno (stdin), buf, sizeof (buf) - 1, 0) != sizeof (buf) - 1
1034 || memcmp (buf, "abcdefgh\n", 9))
1036 if (pread64 (fileno (stdin), buf, l0 + sizeof (buf) - 1, sizeof (buf) - 3)
1038 || memcmp (buf, "h\nABCDEFG", 9))
1041 #if __USE_FORTIFY_LEVEL >= 1
1043 if (pread64 (fileno (stdin), buf, sizeof (buf) + 1, 2 * sizeof (buf))
1044 != sizeof (buf) + 1)
1049 if (pread64 (fileno (stdin), buf, l0 + sizeof (buf) + 1, 2 * sizeof (buf))
1050 != sizeof (buf) + 1)
1055 if (freopen (temp_filename, "r", stdin) == NULL)
1057 puts ("could not open temporary file");
1061 if (fseek (stdin, 9 + 10 + 11, SEEK_SET))
1063 puts ("could not seek in test file");
1067 #if __USE_FORTIFY_LEVEL >= 1
1069 if (gets (buf) != buf)
1074 /* Check whether missing N$ formats are detected. */
1076 printf ("%3$d\n", 1, 2, 3, 4);
1080 fprintf (stdout, "%3$d\n", 1, 2, 3, 4);
1084 sprintf (buf, "%3$d\n", 1, 2, 3, 4);
1088 snprintf (buf, sizeof (buf), "%3$d\n", 1, 2, 3, 4);
1092 if (socketpair (PF_UNIX, SOCK_STREAM, 0, sp))
1096 const char *sendstr = "abcdefgh\nABCDEFGH\n0123456789\n";
1097 if ((size_t) send (sp[0], sendstr, strlen (sendstr), 0)
1098 != strlen (sendstr))
1102 if (recv (sp[1], recvbuf, sizeof recvbuf, MSG_PEEK)
1104 || memcmp (recvbuf, sendstr, sizeof recvbuf) != 0)
1107 if (recv (sp[1], recvbuf + 6, l0 + sizeof recvbuf - 7, MSG_PEEK)
1108 != sizeof recvbuf - 7
1109 || memcmp (recvbuf + 6, sendstr, sizeof recvbuf - 7) != 0)
1112 #if __USE_FORTIFY_LEVEL >= 1
1114 if (recv (sp[1], recvbuf + 1, sizeof recvbuf, MSG_PEEK)
1120 if (recv (sp[1], recvbuf + 4, l0 + sizeof recvbuf - 3, MSG_PEEK)
1121 != sizeof recvbuf - 3)
1127 struct sockaddr_un sa_un;
1129 sl = sizeof (sa_un);
1130 if (recvfrom (sp[1], recvbuf, sizeof recvbuf, MSG_PEEK,
1131 (struct sockaddr *) &sa_un, &sl)
1133 || memcmp (recvbuf, sendstr, sizeof recvbuf) != 0)
1136 sl = sizeof (sa_un);
1137 if (recvfrom (sp[1], recvbuf + 6, l0 + sizeof recvbuf - 7, MSG_PEEK,
1138 (struct sockaddr *) &sa_un, &sl) != sizeof recvbuf - 7
1139 || memcmp (recvbuf + 6, sendstr, sizeof recvbuf - 7) != 0)
1142 #if __USE_FORTIFY_LEVEL >= 1
1144 sl = sizeof (sa_un);
1145 if (recvfrom (sp[1], recvbuf + 1, sizeof recvbuf, MSG_PEEK,
1146 (struct sockaddr *) &sa_un, &sl) != sizeof recvbuf)
1151 sl = sizeof (sa_un);
1152 if (recvfrom (sp[1], recvbuf + 4, l0 + sizeof recvbuf - 3, MSG_PEEK,
1153 (struct sockaddr *) &sa_un, &sl) != sizeof recvbuf - 3)
1162 char fname[] = "/tmp/tst-chk1-dir-XXXXXX\0foo";
1163 char *enddir = strchr (fname, '\0');
1164 if (mkdtemp (fname) == NULL)
1166 printf ("mkdtemp failed: %m\n");
1170 if (symlink ("bar", fname) != 0)
1173 char readlinkbuf[4];
1174 if (readlink (fname, readlinkbuf, 4) != 3
1175 || memcmp (readlinkbuf, "bar", 3) != 0)
1177 if (readlink (fname, readlinkbuf + 1, l0 + 3) != 3
1178 || memcmp (readlinkbuf, "bbar", 4) != 0)
1181 #if __USE_FORTIFY_LEVEL >= 1
1183 if (readlink (fname, readlinkbuf + 2, l0 + 3) != 3)
1188 if (readlink (fname, readlinkbuf + 3, 4) != 3)
1193 int tmpfd = open ("/tmp", O_RDONLY | O_DIRECTORY);
1197 if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf, 4) != 3
1198 || memcmp (readlinkbuf, "bar", 3) != 0)
1200 if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf + 1,
1202 || memcmp (readlinkbuf, "bbar", 4) != 0)
1205 #if __USE_FORTIFY_LEVEL >= 1
1207 if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf + 2,
1213 if (readlinkat (tmpfd, fname + sizeof ("/tmp/") - 1, readlinkbuf + 3,
1221 char *cwd1 = getcwd (NULL, 0);
1225 char *cwd2 = getcwd (NULL, 250);
1231 if (strcmp (cwd1, cwd2) != 0)
1238 char *cwd3 = getcwd (NULL, 0);
1241 if (strcmp (fname, cwd3) != 0)
1242 printf ("getcwd after chdir is '%s' != '%s',"
1243 "get{c,}wd tests skipped\n", cwd3, fname);
1246 char getcwdbuf[sizeof fname - 3];
1248 char *cwd4 = getcwd (getcwdbuf, sizeof getcwdbuf);
1249 if (cwd4 != getcwdbuf
1250 || strcmp (getcwdbuf, fname) != 0)
1253 cwd4 = getcwd (getcwdbuf + 1, l0 + sizeof getcwdbuf - 1);
1254 if (cwd4 != getcwdbuf + 1
1255 || getcwdbuf[0] != fname[0]
1256 || strcmp (getcwdbuf + 1, fname) != 0)
1259 #if __USE_FORTIFY_LEVEL >= 1
1261 if (getcwd (getcwdbuf + 2, l0 + sizeof getcwdbuf)
1267 if (getcwd (getcwdbuf + 2, sizeof getcwdbuf)
1273 if (getwd (getcwdbuf) != getcwdbuf
1274 || strcmp (getcwdbuf, fname) != 0)
1277 if (getwd (getcwdbuf + 1) != getcwdbuf + 1
1278 || strcmp (getcwdbuf + 1, fname) != 0)
1281 #if __USE_FORTIFY_LEVEL >= 1
1283 if (getwd (getcwdbuf + 2) != getcwdbuf + 2)
1289 if (chdir (cwd1) != 0)
1297 if (unlink (fname) != 0)
1301 if (rmdir (fname) != 0)
1306 char largebuf[PATH_MAX];
1307 char *realres = realpath (".", largebuf);
1308 if (realres != largebuf)
1311 # if __USE_FORTIFY_LEVEL >= 1
1314 realres = realpath (".", realbuf);
1315 if (realres != realbuf)
1321 if (setlocale (LC_ALL, "de_DE.UTF-8") != NULL)
1323 assert (MB_CUR_MAX <= 10);
1325 /* First a simple test. */
1327 if (wctomb (enough, L'A') != 1)
1330 #if __USE_FORTIFY_LEVEL >= 1
1331 /* We know the wchar_t encoding is ISO 10646. So pick a
1332 character which has a multibyte representation which does not
1336 if (wctomb (smallbuf, L'\x100') != 2)
1342 memset (&s, '\0', sizeof (s));
1343 if (wcrtomb (enough, L'D', &s) != 1 || enough[0] != 'D')
1346 #if __USE_FORTIFY_LEVEL >= 1
1347 /* We know the wchar_t encoding is ISO 10646. So pick a
1348 character which has a multibyte representation which does not
1352 if (wcrtomb (smallbuf, L'\x100', &s) != 2)
1357 wchar_t wenough[10];
1358 memset (&s, '\0', sizeof (s));
1359 const char *cp = "A";
1360 if (mbsrtowcs (wenough, &cp, 10, &s) != 1
1361 || wcscmp (wenough, L"A") != 0)
1365 if (mbsrtowcs (wenough, &cp, l0 + 10, &s) != 2
1366 || wcscmp (wenough, L"BC") != 0)
1369 #if __USE_FORTIFY_LEVEL >= 1
1371 wchar_t wsmallbuf[2];
1373 mbsrtowcs (wsmallbuf, &cp, 10, &s);
1378 if (mbstowcs (wenough, cp, 10) != 1
1379 || wcscmp (wenough, L"A") != 0)
1383 if (mbstowcs (wenough, cp, l0 + 10) != 3
1384 || wcscmp (wenough, L"DEF") != 0)
1387 #if __USE_FORTIFY_LEVEL >= 1
1389 wchar_t wsmallbuf[2];
1391 mbstowcs (wsmallbuf, cp, 10);
1395 memset (&s, '\0', sizeof (s));
1397 wcscpy (wenough, L"DEF");
1398 if (mbsnrtowcs (wenough, &cp, 1, 10, &s) != 1
1399 || wcscmp (wenough, L"AEF") != 0)
1403 if (mbsnrtowcs (wenough, &cp, 1, l0 + 10, &s) != 1
1404 || wcscmp (wenough, L"IEF") != 0)
1407 #if __USE_FORTIFY_LEVEL >= 1
1409 wchar_t wsmallbuf[2];
1411 mbsnrtowcs (wsmallbuf, &cp, 3, 10, &s);
1415 memset (&s, '\0', sizeof (s));
1416 const wchar_t *wcp = L"A";
1417 if (wcsrtombs (enough, &wcp, 10, &s) != 1
1418 || strcmp (enough, "A") != 0)
1422 if (wcsrtombs (enough, &wcp, l0 + 10, &s) != 2
1423 || strcmp (enough, "BC") != 0)
1426 #if __USE_FORTIFY_LEVEL >= 1
1430 wcsrtombs (smallbuf, &wcp, 10, &s);
1434 memset (enough, 'Z', sizeof (enough));
1436 if (wcstombs (enough, wcp, 10) != 2
1437 || strcmp (enough, "EF") != 0)
1441 if (wcstombs (enough, wcp, l0 + 10) != 1
1442 || strcmp (enough, "G") != 0)
1445 #if __USE_FORTIFY_LEVEL >= 1
1449 wcstombs (smallbuf, wcp, 10);
1453 memset (&s, '\0', sizeof (s));
1455 if (wcsnrtombs (enough, &wcp, 1, 10, &s) != 1
1456 || strcmp (enough, "A") != 0)
1460 if (wcsnrtombs (enough, &wcp, 1, l0 + 10, &s) != 1
1461 || strcmp (enough, "B") != 0)
1464 #if __USE_FORTIFY_LEVEL >= 1
1468 wcsnrtombs (smallbuf, &wcp, 3, 10, &s);
1474 puts ("cannot set locale");
1478 int fd = posix_openpt (O_RDWR);
1482 if (ptsname_r (fd, enough, sizeof (enough)) != 0)
1485 #if __USE_FORTIFY_LEVEL >= 1
1488 if (ptsname_r (fd, smallbuf, sizeof (smallbuf) + 1) == 0)
1496 confstr (_CS_GNU_LIBC_VERSION, largebuf, sizeof (largebuf));
1497 # if __USE_FORTIFY_LEVEL >= 1
1500 confstr (_CS_GNU_LIBC_VERSION, smallbuf, sizeof (largebuf));
1506 int ngr = getgroups (5, grpslarge);
1507 asm volatile ("" : : "r" (ngr));
1508 #if __USE_FORTIFY_LEVEL >= 1
1511 ngr = getgroups (5, (gid_t *) smallbuf);
1512 asm volatile ("" : : "r" (ngr));
1516 fd = open (_PATH_TTY, O_RDONLY);
1520 if (ttyname_r (fd, enough, sizeof (enough)) != 0)
1523 #if __USE_FORTIFY_LEVEL >= 1
1526 if (ttyname_r (fd, smallbuf, sizeof (smallbuf) + 1) == 0)
1533 char hostnamelarge[1000];
1534 gethostname (hostnamelarge, sizeof (hostnamelarge));
1535 #if __USE_FORTIFY_LEVEL >= 1
1538 gethostname (smallbuf, sizeof (hostnamelarge));
1542 char loginlarge[1000];
1543 getlogin_r (loginlarge, sizeof (hostnamelarge));
1544 #if __USE_FORTIFY_LEVEL >= 1
1547 getlogin_r (smallbuf, sizeof (loginlarge));
1551 char domainnamelarge[1000];
1552 int res = getdomainname (domainnamelarge, sizeof (domainnamelarge));
1553 asm volatile ("" : : "r" (res));
1554 #if __USE_FORTIFY_LEVEL >= 1
1557 res = getdomainname (smallbuf, sizeof (domainnamelarge));
1558 asm volatile ("" : : "r" (res));
1565 FD_SET (FD_SETSIZE - 1, &s);
1566 #if __USE_FORTIFY_LEVEL >= 1
1568 FD_SET (FD_SETSIZE, &s);
1572 FD_SET (l0 + FD_SETSIZE, &s);
1576 FD_CLR (FD_SETSIZE - 1, &s);
1577 #if __USE_FORTIFY_LEVEL >= 1
1579 FD_CLR (FD_SETSIZE, &s);
1583 FD_SET (l0 + FD_SETSIZE, &s);
1587 FD_ISSET (FD_SETSIZE - 1, &s);
1588 #if __USE_FORTIFY_LEVEL >= 1
1590 FD_ISSET (FD_SETSIZE, &s);
1594 FD_ISSET (l0 + FD_SETSIZE, &s);
1598 struct pollfd fds[1];
1599 fds[0].fd = STDOUT_FILENO;
1600 fds[0].events = POLLOUT;
1602 #if __USE_FORTIFY_LEVEL >= 1
1608 poll (fds, l0 + 2, 0);
1611 ppoll (fds, 1, NULL, NULL);
1612 #if __USE_FORTIFY_LEVEL >= 1
1614 ppoll (fds, 2, NULL, NULL);
1618 ppoll (fds, l0 + 2, NULL, NULL);