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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [libmudflap/] [testsuite/] [libmudflap.c/] [pass-stratcliff.c] - Blame information for rev 855

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Line No. Rev Author Line
1 275 jeremybenn 
/* Test for string function add boundaries of usable memory.
2 
   Copyright (C) 1996,1997,1999,2000,2001,2002 Free Software Foundation, Inc.
3 
   This file is part of the GNU C Library.
4 
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
5 
 
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.
10 
 
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.
15 
 
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., 51 Franklin Street, Fifth Floor, Boston, MA
19 
   02110-1301 USA.  */
20 
 
21 
#define _GNU_SOURCE 1
22 
#define __USE_GNU
23 
 
24 
/* Make sure we don't test the optimized inline functions if we want to
25 
   test the real implementation.  */
26 
#undef __USE_STRING_INLINES
27 
 
28 
#include <errno.h>
29 
#include <stdio.h>
30 
#include <string.h>
31 
#include <unistd.h>
32 
#include <sys/mman.h>
33 
#include <sys/param.h>
34 
 
35 
#ifndef MAX
36 
#define MAX(a, b) ((a) > (b) ? (a) : (b))
37 
#endif
38 
 
39 
int
40 
main (int argc, char *argv[])
41 
{
42 
  int size = sysconf (_SC_PAGESIZE);
43 
  char *adr, *dest;
44 
  int result = 0;
45 
 
46 
  adr = (char *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
47 
                       MAP_PRIVATE | MAP_ANON, -1, 0);
48 
  dest = (char *) mmap (NULL, 3 * size, PROT_READ | PROT_WRITE,
49 
                        MAP_PRIVATE | MAP_ANON, -1, 0);
50 
  if (adr == MAP_FAILED || dest == MAP_FAILED)
51 
    {
52 
      if (errno == ENOSYS)
53 
        puts ("No test, mmap not available.");
54 
      else
55 
        {
56 
          printf ("mmap failed: %m");
57 
          result = 1;
58 
        }
59 
    }
60 
  else
61 
    {
62 
      int inner, middle, outer;
63 
 
64 
      mprotect(adr, size, PROT_NONE);
65 
      mprotect(adr + 2 * size, size, PROT_NONE);
66 
      adr += size;
67 
 
68 
      mprotect(dest, size, PROT_NONE);
69 
      mprotect(dest + 2 * size, size, PROT_NONE);
70 
      dest += size;
71 
 
72 
      memset (adr, 'T', size);
73 
 
74 
      /* strlen test */
75 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
76 
        {
77 
          for (inner = MAX (outer, size - 64); inner < size; ++inner)
78 
            {
79 
              adr[inner] = '\0';
80 
 
81 
              if (strlen (&adr[outer]) != (size_t) (inner - outer))
82 
                {
83 
                  printf ("strlen flunked for outer = %d, inner = %d\n",
84 
                          outer, inner);
85 
                  result = 1;
86 
                }
87 
 
88 
              adr[inner] = 'T';
89 
            }
90 
        }
91 
 
92 
      /* strchr test */
93 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
94 
        {
95 
          for (middle = MAX (outer, size - 64); middle < size; ++middle)
96 
            {
97 
              for (inner = middle; inner < size; ++inner)
98 
                {
99 
                  char *cp;
100 
                  adr[middle] = 'V';
101 
                  adr[inner] = '\0';
102 
 
103 
                  cp = strchr (&adr[outer], 'V');
104 
 
105 
                  if ((inner == middle && cp != NULL)
106 
                      || (inner != middle
107 
                          && (cp - &adr[outer]) != middle - outer))
108 
                    {
109 
                      printf ("strchr flunked for outer = %d, middle = %d, "
110 
                              "inner = %d\n", outer, middle, inner);
111 
                      result = 1;
112 
                    }
113 
 
114 
                  adr[inner] = 'T';
115 
                  adr[middle] = 'T';
116 
                }
117 
            }
118 
        }
119 
 
120 
      /* Special test.  */
121 
      adr[size - 1] = '\0';
122 
      if (strchr (&adr[size - 1], '\n') != NULL)
123 
        {
124 
          puts ("strchr flunked for test of empty string at end of page");
125 
          result = 1;
126 
        }
127 
 
128 
      /* strrchr test */
129 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
130 
        {
131 
          for (middle = MAX (outer, size - 64); middle < size; ++middle)
132 
            {
133 
              for (inner = middle; inner < size; ++inner)
134 
                {
135 
                  char *cp;
136 
                  adr[middle] = 'V';
137 
                  adr[inner] = '\0';
138 
 
139 
                  cp = strrchr (&adr[outer], 'V');
140 
 
141 
                  if ((inner == middle && cp != NULL)
142 
                      || (inner != middle
143 
                          && (cp - &adr[outer]) != middle - outer))
144 
                    {
145 
                      printf ("strrchr flunked for outer = %d, middle = %d, "
146 
                              "inner = %d\n", outer, middle, inner);
147 
                      result = 1;
148 
                    }
149 
 
150 
                  adr[inner] = 'T';
151 
                  adr[middle] = 'T';
152 
                }
153 
            }
154 
        }
155 
 
156 
#ifndef __FreeBSD__
157 
      /* rawmemchr test */
158 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
159 
        {
160 
          for (middle = MAX (outer, size - 64); middle < size; ++middle)
161 
            {
162 
              char *cp;
163 
              adr[middle] = 'V';
164 
 
165 
              cp = (char *) rawmemchr (&adr[outer], 'V');
166 
 
167 
              if (cp - &adr[outer] != middle - outer)
168 
                {
169 
                  printf ("rawmemchr flunked for outer = %d, middle = %d\n",
170 
                          outer, middle);
171 
                  result = 1;
172 
                }
173 
 
174 
              adr[middle] = 'T';
175 
            }
176 
        }
177 
#endif
178 
 
179 
      /* strcpy test */
180 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
181 
        {
182 
          for (inner = MAX (outer, size - 64); inner < size; ++inner)
183 
            {
184 
              adr[inner] = '\0';
185 
 
186 
              if (strcpy (dest, &adr[outer]) != dest
187 
                  || strlen (dest) != (size_t) (inner - outer))
188 
                {
189 
                  printf ("strcpy flunked for outer = %d, inner = %d\n",
190 
                          outer, inner);
191 
                  result = 1;
192 
                }
193 
 
194 
              adr[inner] = 'T';
195 
            }
196 
        }
197 
 
198 
      /* strncpy tests */
199 
      adr[size-1] = 'T';
200 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
201 
        {
202 
          size_t len;
203 
 
204 
          for (len = 0; len < size - outer; ++len)
205 
            {
206 
              if (strncpy (dest, &adr[outer], len) != dest
207 
                  || memcmp (dest, &adr[outer], len) != 0)
208 
                {
209 
                  printf ("outer strncpy flunked for outer = %d, len = %Zd\n",
210 
                          outer, len);
211 
                  result = 1;
212 
                }
213 
            }
214 
        }
215 
      adr[size-1] = '\0';
216 
 
217 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
218 
        {
219 
          for (inner = MAX (outer, size - 64); inner < size; ++inner)
220 
            {
221 
              size_t len;
222 
 
223 
              adr[inner] = '\0';
224 
 
225 
              for (len = 0; len < size - outer + 64; ++len)
226 
                {
227 
                  if (strncpy (dest, &adr[outer], len) != dest
228 
                      || memcmp (dest, &adr[outer],
229 
                                 MIN (inner - outer, len)) != 0
230 
                      || (inner - outer < len
231 
                          && strlen (dest) != (inner - outer)))
232 
                    {
233 
                      printf ("strncpy flunked for outer = %d, inner = %d, len = %Zd\n",
234 
                              outer, inner, len);
235 
                      result = 1;
236 
                    }
237 
                  if (strncpy (dest + 1, &adr[outer], len) != dest + 1
238 
                      || memcmp (dest + 1, &adr[outer],
239 
                                 MIN (inner - outer, len)) != 0
240 
                      || (inner - outer < len
241 
                          && strlen (dest + 1) != (inner - outer)))
242 
                    {
243 
                      printf ("strncpy+1 flunked for outer = %d, inner = %d, len = %Zd\n",
244 
                              outer, inner, len);
245 
                      result = 1;
246 
                    }
247 
                }
248 
 
249 
              adr[inner] = 'T';
250 
            }
251 
        }
252 
 
253 
#ifndef __FreeBSD__
254 
      /* stpcpy test */
255 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
256 
        {
257 
          for (inner = MAX (outer, size - 64); inner < size; ++inner)
258 
            {
259 
              adr[inner] = '\0';
260 
 
261 
              if ((stpcpy (dest, &adr[outer]) - dest) != inner - outer)
262 
                {
263 
                  printf ("stpcpy flunked for outer = %d, inner = %d\n",
264 
                          outer, inner);
265 
                  result = 1;
266 
                }
267 
 
268 
              adr[inner] = 'T';
269 
            }
270 
        }
271 
 
272 
      /* stpncpy test */
273 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
274 
        {
275 
          for (middle = MAX (outer, size - 64); middle < size; ++middle)
276 
            {
277 
              adr[middle] = '\0';
278 
 
279 
              for (inner = 0; inner < size - outer; ++ inner)
280 
                {
281 
                  if ((stpncpy (dest, &adr[outer], inner) - dest)
282 
                      != MIN (inner, middle - outer))
283 
                    {
284 
                      printf ("stpncpy flunked for outer = %d, middle = %d, "
285 
                              "inner = %d\n", outer, middle, inner);
286 
                      result = 1;
287 
                    }
288 
                }
289 
 
290 
              adr[middle] = 'T';
291 
            }
292 
        }
293 
#endif
294 
 
295 
      /* memcpy test */
296 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
297 
        for (inner = 0; inner < size - outer; ++inner)
298 
          if (memcpy (dest, &adr[outer], inner) !=  dest)
299 
            {
300 
              printf ("memcpy flunked for outer = %d, inner = %d\n",
301 
                      outer, inner);
302 
              result = 1;
303 
            }
304 
 
305 
#ifndef __FreeBSD__
306 
      /* mempcpy test */
307 
      for (outer = size - 1; outer >= MAX (0, size - 128); --outer)
308 
        for (inner = 0; inner < size - outer; ++inner)
309 
          if (mempcpy (dest, &adr[outer], inner) !=  dest + inner)
310 
            {
311 
              printf ("mempcpy flunked for outer = %d, inner = %d\n",
312 
                      outer, inner);
313 
              result = 1;
314 
            }
315 
#endif
316 
    }
317 
 
318 
  return result;
319 
}

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