summaryrefslogtreecommitdiff
path: root/test/string/stratcliff.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/string/stratcliff.c')
-rw-r--r--test/string/stratcliff.c349
1 files changed, 349 insertions, 0 deletions
diff --git a/test/string/stratcliff.c b/test/string/stratcliff.c
new file mode 100644
index 000000000..6377c6ed7
--- /dev/null
+++ b/test/string/stratcliff.c
@@ -0,0 +1,349 @@
+/* Test for string function add boundaries of usable memory.
+ Copyright (C) 1996,1997,1999-2002,2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#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 MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+int
+main (int argc, char *argv[])
+{
+ int size = sysconf (_SC_PAGESIZE);
+ char *adr, *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 * size, size, PROT_NONE);
+ adr += size;
+
+ mprotect(dest, size, PROT_NONE);
+ mprotect(dest + 2 * size, size, PROT_NONE);
+ dest += size;
+
+ memset (adr, 'T', size);
+
+ /* strlen test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (inner = MAX (outer, size - 64); inner < size; ++inner)
+ {
+ adr[inner] = '\0';
+
+ if (strlen (&adr[outer]) != (size_t) (inner - outer))
+ {
+ printf ("strlen flunked for outer = %d, inner = %d\n",
+ outer, inner);
+ result = 1;
+ }
+
+ adr[inner] = 'T';
+ }
+ }
+
+ /* strchr test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (middle = MAX (outer, size - 64); middle < size; ++middle)
+ {
+ for (inner = middle; inner < size; ++inner)
+ {
+ char *cp;
+ adr[middle] = 'V';
+ adr[inner] = '\0';
+
+ cp = strchr (&adr[outer], 'V');
+
+ if ((inner == middle && cp != NULL)
+ || (inner != middle
+ && (cp - &adr[outer]) != middle - outer))
+ {
+ printf ("strchr flunked for outer = %d, middle = %d, "
+ "inner = %d\n", outer, middle, inner);
+ result = 1;
+ }
+
+ adr[inner] = 'T';
+ adr[middle] = 'T';
+ }
+ }
+ }
+
+ /* Special test. */
+ adr[size - 1] = '\0';
+ if (strchr (&adr[size - 1], '\n') != NULL)
+ {
+ puts ("strchr flunked for test of empty string at end of page");
+ result = 1;
+ }
+
+ /* strrchr test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (middle = MAX (outer, size - 64); middle < size; ++middle)
+ {
+ for (inner = middle; inner < size; ++inner)
+ {
+ char *cp;
+ adr[middle] = 'V';
+ adr[inner] = '\0';
+
+ cp = strrchr (&adr[outer], 'V');
+
+ if ((inner == middle && cp != NULL)
+ || (inner != middle
+ && (cp - &adr[outer]) != middle - outer))
+ {
+ printf ("strrchr flunked for outer = %d, middle = %d, "
+ "inner = %d\n", outer, middle, inner);
+ result = 1;
+ }
+
+ adr[inner] = 'T';
+ adr[middle] = 'T';
+ }
+ }
+ }
+
+ /* rawmemchr test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (middle = MAX (outer, size - 64); middle < size; ++middle)
+ {
+ char *cp;
+ adr[middle] = 'V';
+
+ cp = rawmemchr (&adr[outer], 'V');
+
+ if (cp - &adr[outer] != middle - outer)
+ {
+ printf ("rawmemchr flunked for outer = %d, middle = %d\n",
+ outer, middle);
+ result = 1;
+ }
+
+ adr[middle] = 'T';
+ }
+ }
+
+ /* strcpy test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (inner = MAX (outer, size - 64); inner < size; ++inner)
+ {
+ adr[inner] = '\0';
+
+ if (strcpy (dest, &adr[outer]) != dest
+ || strlen (dest) != (size_t) (inner - outer))
+ {
+ printf ("strcpy flunked for outer = %d, inner = %d\n",
+ outer, inner);
+ result = 1;
+ }
+
+ adr[inner] = 'T';
+ }
+ }
+
+ /* strncpy tests */
+ adr[size-1] = 'T';
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ size_t len;
+
+ for (len = 0; len < size - outer; ++len)
+ {
+ if (strncpy (dest, &adr[outer], len) != dest
+ || memcmp (dest, &adr[outer], len) != 0)
+ {
+ printf ("outer strncpy flunked for outer = %d, len = %Zd\n",
+ outer, len);
+ result = 1;
+ }
+ }
+ }
+ adr[size-1] = '\0';
+
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (inner = MAX (outer, size - 64); inner < size; ++inner)
+ {
+ size_t len;
+
+ adr[inner] = '\0';
+
+ for (len = 0; len < size - 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 ("strncpy flunked for outer = %d, inner = %d, len = %Zd\n",
+ 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 ("strncpy+1 flunked for outer = %d, inner = %d, len = %Zd\n",
+ outer, inner, len);
+ result = 1;
+ }
+ }
+
+ adr[inner] = 'T';
+ }
+ }
+
+ /* stpcpy test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (inner = MAX (outer, size - 64); inner < size; ++inner)
+ {
+ adr[inner] = '\0';
+
+ if ((stpcpy (dest, &adr[outer]) - dest) != inner - outer)
+ {
+ printf ("stpcpy flunked for outer = %d, inner = %d\n",
+ outer, inner);
+ result = 1;
+ }
+
+ adr[inner] = 'T';
+ }
+ }
+
+ /* stpncpy test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ {
+ for (middle = MAX (outer, size - 64); middle < size; ++middle)
+ {
+ adr[middle] = '\0';
+
+ for (inner = 0; inner < size - outer; ++ inner)
+ {
+ if ((stpncpy (dest, &adr[outer], inner) - dest)
+ != MIN (inner, middle - outer))
+ {
+ printf ("stpncpy flunked for outer = %d, middle = %d, "
+ "inner = %d\n", outer, middle, inner);
+ result = 1;
+ }
+ }
+
+ adr[middle] = 'T';
+ }
+ }
+
+ /* memcpy test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ for (inner = 0; inner < size - outer; ++inner)
+ if (memcpy (dest, &adr[outer], inner) != dest)
+ {
+ printf ("memcpy flunked for outer = %d, inner = %d\n",
+ outer, inner);
+ result = 1;
+ }
+
+ /* mempcpy test */
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ for (inner = 0; inner < size - outer; ++inner)
+ if (mempcpy (dest, &adr[outer], inner) != dest + inner)
+ {
+ printf ("mempcpy flunked for outer = %d, inner = %d\n",
+ outer, inner);
+ result = 1;
+ }
+
+ /* memccpy test */
+ memset (adr, '\0', size);
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ for (inner = 0; inner < size - outer; ++inner)
+ if (memccpy (dest, &adr[outer], '\1', inner) != NULL)
+ {
+ printf ("memccpy flunked full copy for outer = %d, inner = %d\n",
+ outer, inner);
+ result = 1;
+ }
+ for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
+ for (middle = 0; middle < size - outer; ++middle)
+ {
+ memset (dest, '\2', middle + 1);
+ for (inner = 0; inner < middle; ++inner)
+ {
+ adr[outer + inner] = '\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] != '\2')
+ {
+ printf ("\
+memccpy copied too much for outer = %d, middle = %d, inner = %d\n",
+ outer, middle, inner);
+ result = 1;
+ }
+ adr[outer + inner] = '\0';
+ }
+ }
+ }
+
+ return result;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 11:13:25 +0000