414 lines
11 KiB
C
414 lines
11 KiB
C
/* Test for string function add boundaries of usable memory.
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Copyright (C) 1996,1997,1999-2002,2003,2007 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#define _GNU_SOURCE 1
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/* Make sure we don't test the optimized inline functions if we want to
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test the real implementation. */
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#undef __USE_STRING_INLINES
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <sys/param.h>
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#ifndef CHAR
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# define L(c) c
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# define CHAR char
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# define MEMSET memset
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# define STRLEN strlen
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# define STRNLEN strnlen
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# define STRCHR strchr
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# define STRRCHR strrchr
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# define STRCPY strcpy
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# define STRNCPY strncpy
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# define MEMCMP memcmp
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# define STPCPY stpcpy
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# define STPNCPY stpncpy
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# define MEMCPY memcpy
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# define MEMPCPY mempcpy
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#endif
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#define STRINGIFY(s) STRINGIFY2 (s)
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#define STRINGIFY2(s) #s
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static int
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do_test (void)
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{
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int size = sysconf (_SC_PAGESIZE);
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int nchars = size / sizeof (CHAR);
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CHAR *adr;
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CHAR *dest;
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int result = 0;
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adr = (CHAR *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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dest = (CHAR *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, -1, 0);
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if (adr == MAP_FAILED || dest == MAP_FAILED)
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{
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if (errno == ENOSYS)
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puts ("No test, mmap not available.");
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else
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{
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printf ("mmap failed: %m");
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result = 1;
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}
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}
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else
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{
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int inner, middle, outer;
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mprotect (adr, size, PROT_NONE);
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mprotect (adr + 2 * nchars, size, PROT_NONE);
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adr += nchars;
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mprotect (dest, size, PROT_NONE);
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mprotect (dest + 2 * nchars, size, PROT_NONE);
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dest += nchars;
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MEMSET (adr, L('T'), nchars);
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/* strlen/wcslen test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner)
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{
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adr[inner] = L('\0');
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if (STRLEN (&adr[outer]) != (size_t) (inner - outer))
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{
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printf ("%s flunked for outer = %d, inner = %d\n",
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STRINGIFY (STRLEN), outer, inner);
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result = 1;
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}
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adr[inner] = L('T');
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}
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}
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/* strnlen/wcsnlen test */
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for (outer = nchars; outer >= MAX (0, nchars - 128); --outer)
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{
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for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner)
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{
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adr[inner] = L('\0');
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if (STRNLEN (&adr[outer], inner - outer + 1)
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!= (size_t) (inner - outer))
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{
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printf ("%s flunked for outer = %d, inner = %d\n",
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STRINGIFY (STRNLEN), outer, inner);
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result = 1;
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}
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adr[inner] = L('T');
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}
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}
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for (outer = nchars; outer >= MAX (0, nchars - 128); --outer)
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{
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for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner)
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{
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if (STRNLEN (&adr[outer], inner - outer + 1)
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!= (size_t) (inner - outer + 1))
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{
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printf ("%s flunked bounded for outer = %d, inner = %d\n",
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STRINGIFY (STRNLEN), outer, inner);
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result = 1;
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}
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}
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}
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/* strchr/wcschr test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle)
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{
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for (inner = middle; inner < nchars; ++inner)
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{
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adr[middle] = L('V');
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adr[inner] = L('\0');
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CHAR *cp = STRCHR (&adr[outer], L('V'));
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if ((inner == middle && cp != NULL)
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|| (inner != middle
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&& (cp - &adr[outer]) != middle - outer))
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{
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printf ("%s flunked for outer = %d, middle = %d, "
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"inner = %d\n",
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STRINGIFY (STRCHR), outer, middle, inner);
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result = 1;
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}
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adr[inner] = L('T');
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adr[middle] = L('T');
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}
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}
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}
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/* Special test. */
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adr[nchars - 1] = L('\0');
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if (STRCHR (&adr[nchars - 1], L('\n')) != NULL)
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{
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printf ("%s flunked test of empty string at end of page\n",
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STRINGIFY (STRCHR));
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result = 1;
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}
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/* strrchr/wcsrchr test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle)
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{
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for (inner = middle; inner < nchars; ++inner)
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{
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adr[middle] = L('V');
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adr[inner] = L('\0');
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CHAR *cp = STRRCHR (&adr[outer], L('V'));
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if ((inner == middle && cp != NULL)
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|| (inner != middle
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&& (cp - &adr[outer]) != middle - outer))
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{
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printf ("%s flunked for outer = %d, middle = %d, "
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"inner = %d\n",
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STRINGIFY (STRRCHR), outer, middle, inner);
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result = 1;
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}
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adr[inner] = L('T');
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adr[middle] = L('T');
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}
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}
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}
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/* This function only exists for single-byte characters. */
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#ifndef WCSTEST
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/* rawmemchr test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle)
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{
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adr[middle] = L('V');
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CHAR *cp = rawmemchr (&adr[outer], L('V'));
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if (cp - &adr[outer] != middle - outer)
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{
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printf ("%s flunked for outer = %d, middle = %d\n",
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STRINGIFY (rawmemchr), outer, middle);
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result = 1;
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}
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adr[middle] = L('T');
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}
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}
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#endif
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/* strcpy/wcscpy test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner)
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{
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adr[inner] = L('\0');
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if (STRCPY (dest, &adr[outer]) != dest
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|| STRLEN (dest) != (size_t) (inner - outer))
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{
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printf ("%s flunked for outer = %d, inner = %d\n",
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STRINGIFY (STRCPY), outer, inner);
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result = 1;
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}
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adr[inner] = L('T');
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}
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}
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/* strncpy tests */
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adr[nchars - 1] = L('T');
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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size_t len;
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for (len = 0; len < nchars - outer; ++len)
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{
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if (STRNCPY (dest, &adr[outer], len) != dest
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|| MEMCMP (dest, &adr[outer], len) != 0)
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{
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printf ("outer %s flunked for outer = %d, len = %Zd\n",
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STRINGIFY (STRNCPY), outer, len);
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result = 1;
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}
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}
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}
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adr[nchars - 1] = L('\0');
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner)
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{
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size_t len;
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adr[inner] = L('\0');
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for (len = 0; len < nchars - outer + 64; ++len)
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{
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if (STRNCPY (dest, &adr[outer], len) != dest
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|| MEMCMP (dest, &adr[outer],
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MIN (inner - outer, len)) != 0
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|| (inner - outer < len
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&& STRLEN (dest) != (inner - outer)))
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{
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printf ("%s flunked for outer = %d, inner = %d, "
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"len = %Zd\n",
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STRINGIFY (STRNCPY), outer, inner, len);
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result = 1;
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}
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if (STRNCPY (dest + 1, &adr[outer], len) != dest + 1
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|| MEMCMP (dest + 1, &adr[outer],
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MIN (inner - outer, len)) != 0
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|| (inner - outer < len
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&& STRLEN (dest + 1) != (inner - outer)))
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{
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printf ("%s+1 flunked for outer = %d, inner = %d, "
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"len = %Zd\n",
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STRINGIFY (STRNCPY), outer, inner, len);
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result = 1;
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}
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}
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adr[inner] = L('T');
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}
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}
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/* stpcpy/wcpcpy test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (inner = MAX (outer, nchars - 64); inner < nchars; ++inner)
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{
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adr[inner] = L('\0');
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if ((STPCPY (dest, &adr[outer]) - dest) != inner - outer)
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{
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printf ("%s flunked for outer = %d, inner = %d\n",
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STRINGIFY (STPCPY), outer, inner);
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result = 1;
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}
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adr[inner] = L('T');
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}
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}
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/* stpncpy/wcpncpy test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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{
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for (middle = MAX (outer, nchars - 64); middle < nchars; ++middle)
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{
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adr[middle] = L('\0');
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for (inner = 0; inner < nchars - outer; ++ inner)
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{
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if ((STPNCPY (dest, &adr[outer], inner) - dest)
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!= MIN (inner, middle - outer))
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{
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printf ("%s flunked for outer = %d, middle = %d, "
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"inner = %d\n",
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STRINGIFY (STPNCPY), outer, middle, inner);
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result = 1;
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}
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}
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adr[middle] = L('T');
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}
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}
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/* memcpy/wmemcpy test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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for (inner = 0; inner < nchars - outer; ++inner)
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if (MEMCPY (dest, &adr[outer], inner) != dest)
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{
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printf ("%s flunked for outer = %d, inner = %d\n",
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STRINGIFY (MEMCPY), outer, inner);
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result = 1;
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}
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/* mempcpy/wmempcpy test */
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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for (inner = 0; inner < nchars - outer; ++inner)
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if (MEMPCPY (dest, &adr[outer], inner) != dest + inner)
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{
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printf ("%s flunked for outer = %d, inner = %d\n",
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STRINGIFY (MEMPCPY), outer, inner);
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result = 1;
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}
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/* This function only exists for single-byte characters. */
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#ifndef WCSTEST
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/* memccpy test */
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memset (adr, '\0', nchars);
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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for (inner = 0; inner < nchars - outer; ++inner)
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if (memccpy (dest, &adr[outer], L('\1'), inner) != NULL)
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{
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printf ("memccpy flunked full copy for outer = %d, inner = %d\n",
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outer, inner);
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result = 1;
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}
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for (outer = nchars - 1; outer >= MAX (0, nchars - 128); --outer)
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for (middle = 0; middle < nchars - outer; ++middle)
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{
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memset (dest, L('\2'), middle + 1);
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for (inner = 0; inner < middle; ++inner)
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{
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adr[outer + inner] = L('\1');
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if (memccpy (dest, &adr[outer], '\1', middle + 128)
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!= dest + inner + 1)
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{
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printf ("\
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memccpy flunked partial copy for outer = %d, middle = %d, inner = %d\n",
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outer, middle, inner);
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result = 1;
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}
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else if (dest[inner + 1] != L('\2'))
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{
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printf ("\
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memccpy copied too much for outer = %d, middle = %d, inner = %d\n",
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outer, middle, inner);
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result = 1;
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}
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adr[outer + inner] = L('\0');
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}
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}
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#endif
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}
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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