diff options
Diffstat (limited to 'REORG.TODO/string/stratcliff.c')
| -rw-r--r-- | REORG.TODO/string/stratcliff.c | 561 |
1 files changed, 561 insertions, 0 deletions
diff --git a/REORG.TODO/string/stratcliff.c b/REORG.TODO/string/stratcliff.c new file mode 100644 index 0000000000..e28b0c5058 --- /dev/null +++ b/REORG.TODO/string/stratcliff.c @@ -0,0 +1,561 @@ +/* Test for string function add boundaries of usable memory. + Copyright (C) 1996-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#define _GNU_SOURCE 1 + +/* Make sure we don't test the optimized inline functions if we want to + test the real implementation. */ +#undef __USE_STRING_INLINES + +#include <errno.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/param.h> + +#ifndef CHAR +# define L(c) c +# define CHAR char +# define MEMSET memset +# define STRLEN strlen +# define STRNLEN strnlen +# define STRCHR strchr +# define STRRCHR strrchr +# define STRCPY strcpy +# define STRNCPY strncpy +# define MEMCMP memcmp +# define STPCPY stpcpy +# define STPNCPY stpncpy +# define MEMCPY memcpy +# define MEMPCPY mempcpy +# define MEMCHR memchr +# define STRCMP strcmp +# define STRNCMP strncmp +#endif + + +#define STRINGIFY(s) STRINGIFY2 (s) +#define STRINGIFY2(s) #s + + +int +do_test (void) +{ + int size = sysconf (_SC_PAGESIZE); + int nchars = size / sizeof (CHAR); + CHAR *adr; + CHAR *dest; + int result = 0; + + adr = (CHAR *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0); + dest = (CHAR *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANON, -1, 0); + if (adr == MAP_FAILED || dest == MAP_FAILED) + { + if (errno == ENOSYS) + puts ("No test, mmap not available."); + else + { + printf ("mmap failed: %m"); + result = 1; + } + } + else + { + int inner, middle, outer; + + mprotect (adr, size, PROT_NONE); + mprotect (adr + 2 * nchars, size, PROT_NONE); + adr += nchars; + + mprotect (dest, size, PROT_NONE); + mprotect (dest + 2 * nchars, size, PROT_NONE); + dest += nchars; + + MEMSET (adr, L('T'), nchars); + + /* strlen/wcslen test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner) + { + adr[inner] = L('\0'); + + if (STRLEN (&adr[outer]) != (size_t) (inner - outer)) + { + printf ("%s flunked for outer = %d, inner = %d\n", + STRINGIFY (STRLEN), outer, inner); + result = 1; + } + + adr[inner] = L('T'); + } + } + + /* strnlen/wcsnlen test */ + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + { + for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner) + { + adr[inner] = L('\0'); + + if (STRNLEN (&adr[outer], inner - outer + 1) + != (size_t) (inner - outer)) + { + printf ("%s flunked for outer = %d, inner = %d\n", + STRINGIFY (STRNLEN), outer, inner); + result = 1; + } + + adr[inner] = L('T'); + } + } + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + { + for (inner = MAX (outer, nchars - 64); inner <= nchars; ++inner) + { + if (STRNLEN (&adr[outer], inner - outer) + != (size_t) (inner - outer)) + { + printf ("%s flunked bounded for outer = %d, inner = %d\n", + STRINGIFY (STRNLEN), outer, inner); + result = 1; + } + } + } + + /* strchr/wcschr test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle) + { + for (inner = middle; inner < nchars; ++inner) + { + adr[middle] = L('V'); + adr[inner] = L('\0'); + + CHAR *cp = STRCHR (&adr[outer], L('V')); + + if ((inner == middle && cp != NULL) + || (inner != middle + && (cp - &adr[outer]) != middle - outer)) + { + printf ("%s flunked for outer = %d, middle = %d, " + "inner = %d\n", + STRINGIFY (STRCHR), outer, middle, inner); + result = 1; + } + + adr[inner] = L('T'); + adr[middle] = L('T'); + } + } + } + + /* Special test. */ + adr[nchars - 1] = L('\0'); + if (STRCHR (&adr[nchars - 1], L('\n')) != NULL) + { + printf ("%s flunked test of empty string at end of page\n", + STRINGIFY (STRCHR)); + result = 1; + } + + /* strrchr/wcsrchr test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle) + { + for (inner = middle; inner < nchars; ++inner) + { + adr[middle] = L('V'); + adr[inner] = L('\0'); + + CHAR *cp = STRRCHR (&adr[outer], L('V')); + + if ((inner == middle && cp != NULL) + || (inner != middle + && (cp - &adr[outer]) != middle - outer)) + { + printf ("%s flunked for outer = %d, middle = %d, " + "inner = %d\n", + STRINGIFY (STRRCHR), outer, middle, inner); + result = 1; + } + + adr[inner] = L('T'); + adr[middle] = L('T'); + } + } + } + + /* memchr test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle) + { + adr[middle] = L('V'); + + CHAR *cp = MEMCHR (&adr[outer], L('V'), 3 * size); + + if (cp - &adr[outer] != middle - outer) + { + printf ("%s flunked for outer = %d, middle = %d\n", + STRINGIFY (MEMCHR), outer, middle); + result = 1; + } + + adr[middle] = L('T'); + } + } + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + { + CHAR *cp = MEMCHR (&adr[outer], L('V'), nchars - outer); + + if (cp != NULL) + { + printf ("%s flunked for outer = %d\n", + STRINGIFY (MEMCHR), outer); + result = 1; + } + } + + /* These functions only exist for single-byte characters. */ +#ifndef WCSTEST + /* rawmemchr test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle) + { + adr[middle] = L('V'); + + CHAR *cp = rawmemchr (&adr[outer], L('V')); + + if (cp - &adr[outer] != middle - outer) + { + printf ("%s flunked for outer = %d, middle = %d\n", + STRINGIFY (rawmemchr), outer, middle); + result = 1; + } + + adr[middle] = L('T'); + } + } + + /* memrchr test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle) + { + adr[middle] = L('V'); + + CHAR *cp = memrchr (&adr[outer], L('V'), nchars - outer); + + if (cp - &adr[outer] != middle - outer) + { + printf ("%s flunked for outer = %d, middle = %d\n", + STRINGIFY (memrchr), outer, middle); + result = 1; + } + + adr[middle] = L('T'); + } + } + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + { + CHAR *cp = memrchr (&adr[outer], L('V'), nchars - outer); + + if (cp != NULL) + { + printf ("%s flunked for outer = %d\n", + STRINGIFY (memrchr), outer); + result = 1; + } + } +#endif + + /* strcpy/wcscpy test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner) + { + adr[inner] = L('\0'); + + if (STRCPY (dest, &adr[outer]) != dest + || STRLEN (dest) != (size_t) (inner - outer)) + { + printf ("%s flunked for outer = %d, inner = %d\n", + STRINGIFY (STRCPY), outer, inner); + result = 1; + } + + adr[inner] = L('T'); + } + } + + /* strcmp/wcscmp tests */ + for (outer = 1; outer < 32; ++outer) + for (middle = 0; middle < 16; ++middle) + { + MEMSET (adr + middle, L('T'), 256); + adr[256] = L('\0'); + MEMSET (dest + nchars - outer, L('T'), outer - 1); + dest[nchars - 1] = L('\0'); + + if (STRCMP (adr + middle, dest + nchars - outer) <= 0) + { + printf ("%s 1 flunked for outer = %d, middle = %d\n", + STRINGIFY (STRCMP), outer, middle); + result = 1; + } + + if (STRCMP (dest + nchars - outer, adr + middle) >= 0) + { + printf ("%s 2 flunked for outer = %d, middle = %d\n", + STRINGIFY (STRCMP), outer, middle); + result = 1; + } + } + + /* strncmp/wcsncmp tests */ + for (outer = 1; outer < 32; ++outer) + for (middle = 0; middle < 16; ++middle) + { + MEMSET (adr + middle, L('T'), 256); + adr[256] = L('\0'); + MEMSET (dest + nchars - outer, L('T'), outer - 1); + dest[nchars - 1] = L('U'); + + for (inner = 0; inner < outer; ++inner) + { + if (STRNCMP (adr + middle, dest + nchars - outer, inner) != 0) + { + printf ("%s 1 flunked for outer = %d, middle = %d, " + "inner = %d\n", + STRINGIFY (STRNCMP), outer, middle, inner); + result = 1; + } + + if (STRNCMP (dest + nchars - outer, adr + middle, inner) != 0) + { + printf ("%s 2 flunked for outer = %d, middle = %d, " + "inner = %d\n", + STRINGIFY (STRNCMP), outer, middle, inner); + result = 1; + } + } + + if (STRNCMP (adr + middle, dest + nchars - outer, outer) >= 0) + { + printf ("%s 1 flunked for outer = %d, middle = %d, full\n", + STRINGIFY (STRNCMP), outer, middle); + result = 1; + } + + if (STRNCMP (dest + nchars - outer, adr + middle, outer) <= 0) + { + printf ("%s 2 flunked for outer = %d, middle = %d, full\n", + STRINGIFY (STRNCMP), outer, middle); + result = 1; + } + } + + /* strncpy/wcsncpy tests */ + adr[nchars - 1] = L('T'); + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + { + size_t len; + + for (len = 0; len < nchars - outer; ++len) + { + if (STRNCPY (dest, &adr[outer], len) != dest + || MEMCMP (dest, &adr[outer], len) != 0) + { + printf ("outer %s flunked for outer = %d, len = %Zd\n", + STRINGIFY (STRNCPY), outer, len); + result = 1; + } + } + } + adr[nchars - 1] = L('\0'); + + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner) + { + size_t len; + + adr[inner] = L('\0'); + + for (len = 0; len < nchars - outer + 64; ++len) + { + if (STRNCPY (dest, &adr[outer], len) != dest + || MEMCMP (dest, &adr[outer], + MIN (inner - outer, len)) != 0 + || (inner - outer < len + && STRLEN (dest) != (inner - outer))) + { + printf ("%s flunked for outer = %d, inner = %d, " + "len = %Zd\n", + STRINGIFY (STRNCPY), outer, inner, len); + result = 1; + } + if (STRNCPY (dest + 1, &adr[outer], len) != dest + 1 + || MEMCMP (dest + 1, &adr[outer], + MIN (inner - outer, len)) != 0 + || (inner - outer < len + && STRLEN (dest + 1) != (inner - outer))) + { + printf ("%s+1 flunked for outer = %d, inner = %d, " + "len = %Zd\n", + STRINGIFY (STRNCPY), outer, inner, len); + result = 1; + } + } + + adr[inner] = L('T'); + } + } + + /* stpcpy/wcpcpy test */ + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner) + { + adr[inner] = L('\0'); + + if ((STPCPY (dest, &adr[outer]) - dest) != inner - outer) + { + printf ("%s flunked for outer = %d, inner = %d\n", + STRINGIFY (STPCPY), outer, inner); + result = 1; + } + + adr[inner] = L('T'); + } + } + + /* stpncpy/wcpncpy test */ + adr[nchars - 1] = L('T'); + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + { + size_t len; + + for (len = 0; len < nchars - outer; ++len) + { + if (STPNCPY (dest, &adr[outer], len) != dest + len + || MEMCMP (dest, &adr[outer], len) != 0) + { + printf ("outer %s flunked for outer = %d, len = %Zd\n", + STRINGIFY (STPNCPY), outer, len); + result = 1; + } + } + } + adr[nchars - 1] = L('\0'); + + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + { + for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle) + { + adr[middle] = L('\0'); + + for (inner = 0; inner < nchars - outer; ++ inner) + { + if ((STPNCPY (dest, &adr[outer], inner) - dest) + != MIN (inner, middle - outer)) + { + printf ("%s flunked for outer = %d, middle = %d, " + "inner = %d\n", + STRINGIFY (STPNCPY), outer, middle, inner); + result = 1; + } + } + + adr[middle] = L('T'); + } + } + + /* memcpy/wmemcpy test */ + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + for (inner = 0; inner < nchars - outer; ++inner) + if (MEMCPY (dest, &adr[outer], inner) != dest) + { + printf ("%s flunked for outer = %d, inner = %d\n", + STRINGIFY (MEMCPY), outer, inner); + result = 1; + } + + /* mempcpy/wmempcpy test */ + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + for (inner = 0; inner < nchars - outer; ++inner) + if (MEMPCPY (dest, &adr[outer], inner) != dest + inner) + { + printf ("%s flunked for outer = %d, inner = %d\n", + STRINGIFY (MEMPCPY), outer, inner); + result = 1; + } + + /* This function only exists for single-byte characters. */ +#ifndef WCSTEST + /* memccpy test */ + memset (adr, '\0', nchars); + for (outer = nchars; outer >= MAX (0, nchars - 128); --outer) + for (inner = 0; inner < nchars - outer; ++inner) + if (memccpy (dest, &adr[outer], L('\1'), inner) != NULL) + { + printf ("memccpy flunked full copy for outer = %d, inner = %d\n", + outer, inner); + result = 1; + } + for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer) + for (middle = 0; middle < nchars - outer; ++middle) + { + memset (dest, L('\2'), middle + 1); + for (inner = 0; inner < middle; ++inner) + { + adr[outer + inner] = L('\1'); + + if (memccpy (dest, &adr[outer], '\1', middle + 128) + != dest + inner + 1) + { + printf ("\ +memccpy flunked partial copy for outer = %d, middle = %d, inner = %d\n", + outer, middle, inner); + result = 1; + } + else if (dest[inner + 1] != L('\2')) + { + printf ("\ +memccpy copied too much for outer = %d, middle = %d, inner = %d\n", + outer, middle, inner); + result = 1; + } + adr[outer + inner] = L('\0'); + } + } +#endif + } + + return result; +} + +#include <support/test-driver.c> |