1 /* Test for string function add boundaries of usable memory.
2 Copyright (C) 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
23 /* Make sure we don't test the optimized inline functions if we want to
24 test the real implementation. */
25 #undef __USE_STRING_INLINES
32 #include <sys/param.h>
35 #define MAX(a, b) ((a) > (b) ? (a) : (b))
39 main (int argc, char *argv[])
41 int size = sysconf (_SC_PAGESIZE);
45 adr = (char *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
46 MAP_PRIVATE | MAP_ANON, -1, 0);
47 dest = (char *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
48 MAP_PRIVATE | MAP_ANON, -1, 0);
49 if (adr == MAP_FAILED || dest == MAP_FAILED)
52 puts ("No test, mmap not available.");
55 printf ("mmap failed: %m");
61 int inner, middle, outer;
63 mprotect(adr, size, PROT_NONE);
64 mprotect(adr + 2 * size, size, PROT_NONE);
67 mprotect(dest, size, PROT_NONE);
68 mprotect(dest + 2 * size, size, PROT_NONE);
71 memset (adr, 'T', size);
74 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
76 for (inner = MAX (outer, size - 64); inner < size; ++inner)
80 if (strlen (&adr[outer]) != (size_t) (inner - outer))
82 printf ("strlen flunked for outer = %d, inner = %d\n",
92 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
94 for (middle = MAX (outer, size - 64); middle < size; ++middle)
96 for (inner = middle; inner < size; ++inner)
102 cp = strchr (&adr[outer], 'V');
104 if ((inner == middle && cp != NULL)
106 && (cp - &adr[outer]) != middle - outer))
108 printf ("strchr flunked for outer = %d, middle = %d, "
109 "inner = %d\n", outer, middle, inner);
120 adr[size - 1] = '\0';
121 if (strchr (&adr[size - 1], '\n') != NULL)
123 puts ("strchr flunked for test of empty string at end of page");
128 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
130 for (middle = MAX (outer, size - 64); middle < size; ++middle)
132 for (inner = middle; inner < size; ++inner)
138 cp = strrchr (&adr[outer], 'V');
140 if ((inner == middle && cp != NULL)
142 && (cp - &adr[outer]) != middle - outer))
144 printf ("strrchr flunked for outer = %d, middle = %d, "
145 "inner = %d\n", outer, middle, inner);
156 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
158 for (middle = MAX (outer, size - 64); middle < size; ++middle)
163 cp = rawmemchr (&adr[outer], 'V');
165 if (cp - &adr[outer] != middle - outer)
167 printf ("rawmemchr flunked for outer = %d, middle = %d\n",
177 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
179 for (inner = MAX (outer, size - 64); inner < size; ++inner)
183 if (strcpy (dest, &adr[outer]) != dest
184 || strlen (dest) != (size_t) (inner - outer))
186 printf ("strcpy flunked for outer = %d, inner = %d\n",
196 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
198 for (inner = MAX (outer, size - 64); inner < size; ++inner)
204 for (len = 0; len < size - outer + 64; ++len)
206 if (strncpy (dest, &adr[outer], len) != dest
207 || memcmp (dest, &adr[outer],
208 MIN (inner - outer, len)) != 0
209 || (inner - outer < len
210 && strlen (dest) != (inner - outer)))
212 printf ("strncpy flunked for outer = %d, inner = %d, len = %Zd\n",
223 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
225 for (inner = MAX (outer, size - 64); inner < size; ++inner)
229 if ((stpcpy (dest, &adr[outer]) - dest) != inner - outer)
231 printf ("stpcpy flunked for outer = %d, inner = %d\n",
241 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
243 for (middle = MAX (outer, size - 64); middle < size; ++middle)
247 for (inner = 0; inner < size - outer; ++ inner)
249 if ((stpncpy (dest, &adr[outer], inner) - dest)
250 != MIN (inner, middle - outer))
252 printf ("stpncpy flunked for outer = %d, middle = %d, "
253 "inner = %d\n", outer, middle, inner);
263 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
264 for (inner = 0; inner < size - outer; ++inner)
265 if (memcpy (dest, &adr[outer], inner) != dest)
267 printf ("memcpy flunked for outer = %d, inner = %d\n",
273 for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
274 for (inner = 0; inner < size - outer; ++inner)
275 if (mempcpy (dest, &adr[outer], inner) != dest + inner)
277 printf ("mempcpy flunked for outer = %d, inner = %d\n",