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30891f35fa
We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
619 lines
15 KiB
C
619 lines
15 KiB
C
/* Test for string function add boundaries of usable memory.
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Copyright (C) 1996-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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, see
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<https://www.gnu.org/licenses/>. */
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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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# define MEMCHR memchr
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# define STRCMP strcmp
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# define STRNCMP strncmp
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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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int
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do_test (void)
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{
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size_t size = sysconf (_SC_PAGESIZE);
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size_t 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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size_t inner, middle, outer, nchars64, max128;
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if (nchars > 64)
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nchars64 = nchars - 64;
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else
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nchars64 = 0;
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if (nchars > 128)
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max128 = nchars - 128;
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else
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max128 = 0;
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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 >= max128; --outer)
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{
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for (inner = MAX (outer, nchars64); 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 = %zu, inner = %zu\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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if (outer == 0)
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break;
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}
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/* strnlen/wcsnlen test */
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for (outer = nchars; outer >= max128; --outer)
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{
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for (inner = MAX (outer, nchars64); 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 = %zu, inner = %zu\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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if (outer == 0)
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break;
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}
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for (outer = nchars; outer >= max128; --outer)
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{
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for (inner = MAX (outer, nchars64); inner <= nchars; ++inner)
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{
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if (STRNLEN (&adr[outer], inner - outer)
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!= (size_t) (inner - outer))
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{
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printf ("%s flunked bounded for outer = %zu, inner = %zu\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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if (outer == 0)
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break;
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}
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/* strchr/wcschr test */
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for (outer = nchars - 1; outer >= max128; --outer)
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{
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for (middle = MAX (outer, nchars64); 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 = %zu, middle = %zu, "
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"inner = %zu\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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if (outer == 0)
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break;
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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 >= max128; --outer)
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{
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for (middle = MAX (outer, nchars64); 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 = %zu, middle = %zu, "
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"inner = %zu\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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if (outer == 0)
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break;
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}
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/* memchr test */
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for (outer = nchars - 1; outer >= max128; --outer)
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{
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for (middle = MAX (outer, nchars64); middle < nchars; ++middle)
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{
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adr[middle] = L('V');
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CHAR *cp = MEMCHR (&adr[outer], L('V'), 3 * size);
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if (cp - &adr[outer] != middle - outer)
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{
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printf ("%s flunked for outer = %zu, middle = %zu\n",
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STRINGIFY (MEMCHR), 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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if (outer == 0)
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break;
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}
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for (outer = nchars; outer >= max128; --outer)
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{
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CHAR *cp = MEMCHR (&adr[outer], L('V'), nchars - outer);
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if (cp != NULL)
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{
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printf ("%s flunked for outer = %zu\n",
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STRINGIFY (MEMCHR), outer);
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result = 1;
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}
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if (outer == 0)
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break;
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}
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/* These functions only exist 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 >= max128; --outer)
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{
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for (middle = MAX (outer, nchars64); 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 = %zu, middle = %zu\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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if (outer == 0)
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break;
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}
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/* memrchr test */
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for (outer = nchars - 1; outer >= max128; --outer)
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{
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for (middle = MAX (outer, nchars64); middle < nchars; ++middle)
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{
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adr[middle] = L('V');
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CHAR *cp = memrchr (&adr[outer], L('V'), nchars - outer);
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if (cp - &adr[outer] != middle - outer)
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{
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printf ("%s flunked for outer = %zu, middle = %zu\n",
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STRINGIFY (memrchr), 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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if (outer == 0)
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break;
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}
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for (outer = nchars; outer >= max128; --outer)
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{
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CHAR *cp = memrchr (&adr[outer], L('V'), nchars - outer);
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if (cp != NULL)
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{
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printf ("%s flunked for outer = %zu\n",
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STRINGIFY (memrchr), outer);
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result = 1;
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}
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if (outer == 0)
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break;
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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 >= max128; --outer)
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{
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for (inner = MAX (outer, nchars64); 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 = %zu, inner = %zu\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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if (outer == 0)
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break;
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}
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/* strcmp/wcscmp tests */
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for (outer = 1; outer < 32; ++outer)
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for (middle = 0; middle < 16; ++middle)
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{
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MEMSET (adr + middle, L('T'), 256);
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adr[256] = L('\0');
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MEMSET (dest + nchars - outer, L('T'), outer - 1);
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dest[nchars - 1] = L('\0');
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if (STRCMP (adr + middle, dest + nchars - outer) <= 0)
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{
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printf ("%s 1 flunked for outer = %zu, middle = %zu\n",
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STRINGIFY (STRCMP), outer, middle);
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result = 1;
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}
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if (STRCMP (dest + nchars - outer, adr + middle) >= 0)
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{
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printf ("%s 2 flunked for outer = %zu, middle = %zu\n",
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STRINGIFY (STRCMP), outer, middle);
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result = 1;
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}
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}
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/* strncmp/wcsncmp tests */
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for (outer = 1; outer < 32; ++outer)
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for (middle = 0; middle < 16; ++middle)
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{
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MEMSET (adr + middle, L('T'), 256);
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adr[256] = L('\0');
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MEMSET (dest + nchars - outer, L('T'), outer - 1);
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dest[nchars - 1] = L('U');
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for (inner = 0; inner < outer; ++inner)
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{
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if (STRNCMP (adr + middle, dest + nchars - outer, inner) != 0)
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{
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printf ("%s 1 flunked for outer = %zu, middle = %zu, "
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"inner = %zu\n",
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STRINGIFY (STRNCMP), outer, middle, inner);
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result = 1;
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}
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if (STRNCMP (dest + nchars - outer, adr + middle, inner) != 0)
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{
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printf ("%s 2 flunked for outer = %zu, middle = %zu, "
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"inner = %zu\n",
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STRINGIFY (STRNCMP), outer, middle, inner);
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result = 1;
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}
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}
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if (STRNCMP (adr + middle, dest + nchars - outer, outer) >= 0)
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{
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printf ("%s 1 flunked for outer = %zu, middle = %zu, full\n",
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STRINGIFY (STRNCMP), outer, middle);
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result = 1;
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}
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if (STRNCMP (dest + nchars - outer, adr + middle, outer) <= 0)
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{
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printf ("%s 2 flunked for outer = %zu, middle = %zu, full\n",
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STRINGIFY (STRNCMP), outer, middle);
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result = 1;
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}
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}
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/* strncpy/wcsncpy tests */
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adr[nchars - 1] = L('T');
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for (outer = nchars; outer >= max128; --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 = %zu, len = %zu\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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if (outer == 0)
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break;
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}
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adr[nchars - 1] = L('\0');
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for (outer = nchars - 1; outer >= max128; --outer)
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{
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for (inner = MAX (outer, nchars64); 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 = %zu, inner = %zu, "
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"len = %zu\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 = %zu, inner = %zu, "
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|
"len = %zu\n",
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STRINGIFY (STRNCPY), outer, inner, len);
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result = 1;
|
|
}
|
|
}
|
|
|
|
adr[inner] = L('T');
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
|
|
/* stpcpy/wcpcpy test */
|
|
for (outer = nchars - 1; outer >= max128; --outer)
|
|
{
|
|
for (inner = MAX (outer, nchars64); inner < nchars; ++inner)
|
|
{
|
|
adr[inner] = L('\0');
|
|
|
|
if ((STPCPY (dest, &adr[outer]) - dest) != inner - outer)
|
|
{
|
|
printf ("%s flunked for outer = %zu, inner = %zu\n",
|
|
STRINGIFY (STPCPY), outer, inner);
|
|
result = 1;
|
|
}
|
|
|
|
adr[inner] = L('T');
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
|
|
/* stpncpy/wcpncpy test */
|
|
adr[nchars - 1] = L('T');
|
|
for (outer = nchars; outer >= max128; --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 = %zu, len = %zu\n",
|
|
STRINGIFY (STPNCPY), outer, len);
|
|
result = 1;
|
|
}
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
adr[nchars - 1] = L('\0');
|
|
|
|
for (outer = nchars - 1; outer >= max128; --outer)
|
|
{
|
|
for (middle = MAX (outer, nchars64); 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 = %zu, middle = %zu, "
|
|
"inner = %zu\n",
|
|
STRINGIFY (STPNCPY), outer, middle, inner);
|
|
result = 1;
|
|
}
|
|
}
|
|
|
|
adr[middle] = L('T');
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
|
|
/* memcpy/wmemcpy test */
|
|
for (outer = nchars; outer >= max128; --outer)
|
|
{
|
|
for (inner = 0; inner < nchars - outer; ++inner)
|
|
if (MEMCPY (dest, &adr[outer], inner) != dest)
|
|
{
|
|
printf ("%s flunked for outer = %zu, inner = %zu\n",
|
|
STRINGIFY (MEMCPY), outer, inner);
|
|
result = 1;
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
|
|
/* mempcpy/wmempcpy test */
|
|
for (outer = nchars; outer >= max128; --outer)
|
|
{
|
|
for (inner = 0; inner < nchars - outer; ++inner)
|
|
if (MEMPCPY (dest, &adr[outer], inner) != dest + inner)
|
|
{
|
|
printf ("%s flunked for outer = %zu, inner = %zu\n",
|
|
STRINGIFY (MEMPCPY), outer, inner);
|
|
result = 1;
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
|
|
/* This function only exists for single-byte characters. */
|
|
#ifndef WCSTEST
|
|
/* memccpy test */
|
|
memset (adr, '\0', nchars);
|
|
for (outer = nchars; outer >= max128; --outer)
|
|
{
|
|
for (inner = 0; inner < nchars - outer; ++inner)
|
|
if (memccpy (dest, &adr[outer], L('\1'), inner) != NULL)
|
|
{
|
|
printf ("memccpy flunked full copy for outer = %zu, inner = %zu\n",
|
|
outer, inner);
|
|
result = 1;
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
for (outer = nchars - 1; outer >= max128; --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 = %zu, middle = %zu, inner = %zu\n",
|
|
outer, middle, inner);
|
|
result = 1;
|
|
}
|
|
else if (dest[inner + 1] != L('\2'))
|
|
{
|
|
printf ("\
|
|
memccpy copied too much for outer = %zu, middle = %zu, inner = %zu\n",
|
|
outer, middle, inner);
|
|
result = 1;
|
|
}
|
|
adr[outer + inner] = L('\0');
|
|
}
|
|
}
|
|
if (outer == 0)
|
|
break;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|