1 /* 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.
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., 51 Franklin Street, Fifth Floor, Boston, MA
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
33 #include <sys/param.h>
36 #define MAX(a, b) ((a) > (b) ? (a) : (b))
40 main (int argc
, char *argv
[])
42 int size
= sysconf (_SC_PAGESIZE
);
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
)
53 puts ("No test, mmap not available.");
56 printf ("mmap failed: %m");
62 int inner
, middle
, outer
;
64 mprotect(adr
, size
, PROT_NONE
);
65 mprotect(adr
+ 2 * size
, size
, PROT_NONE
);
68 mprotect(dest
, size
, PROT_NONE
);
69 mprotect(dest
+ 2 * size
, size
, PROT_NONE
);
72 memset (adr
, 'T', size
);
75 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
77 for (inner
= MAX (outer
, size
- 64); inner
< size
; ++inner
)
81 if (strlen (&adr
[outer
]) != (size_t) (inner
- outer
))
83 printf ("strlen flunked for outer = %d, inner = %d\n",
93 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
95 for (middle
= MAX (outer
, size
- 64); middle
< size
; ++middle
)
97 for (inner
= middle
; inner
< size
; ++inner
)
103 cp
= strchr (&adr
[outer
], 'V');
105 if ((inner
== middle
&& cp
!= NULL
)
107 && (cp
- &adr
[outer
]) != middle
- outer
))
109 printf ("strchr flunked for outer = %d, middle = %d, "
110 "inner = %d\n", outer
, middle
, inner
);
121 adr
[size
- 1] = '\0';
122 if (strchr (&adr
[size
- 1], '\n') != NULL
)
124 puts ("strchr flunked for test of empty string at end of page");
129 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
131 for (middle
= MAX (outer
, size
- 64); middle
< size
; ++middle
)
133 for (inner
= middle
; inner
< size
; ++inner
)
139 cp
= strrchr (&adr
[outer
], 'V');
141 if ((inner
== middle
&& cp
!= NULL
)
143 && (cp
- &adr
[outer
]) != middle
- outer
))
145 printf ("strrchr flunked for outer = %d, middle = %d, "
146 "inner = %d\n", outer
, middle
, inner
);
158 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
160 for (middle
= MAX (outer
, size
- 64); middle
< size
; ++middle
)
165 cp
= (char *) rawmemchr (&adr
[outer
], 'V');
167 if (cp
- &adr
[outer
] != middle
- outer
)
169 printf ("rawmemchr flunked for outer = %d, middle = %d\n",
180 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
182 for (inner
= MAX (outer
, size
- 64); inner
< size
; ++inner
)
186 if (strcpy (dest
, &adr
[outer
]) != dest
187 || strlen (dest
) != (size_t) (inner
- outer
))
189 printf ("strcpy flunked for outer = %d, inner = %d\n",
200 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
204 for (len
= 0; len
< size
- outer
; ++len
)
206 if (strncpy (dest
, &adr
[outer
], len
) != dest
207 || memcmp (dest
, &adr
[outer
], len
) != 0)
209 printf ("outer strncpy flunked for outer = %d, len = %Zd\n",
217 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
219 for (inner
= MAX (outer
, size
- 64); inner
< size
; ++inner
)
225 for (len
= 0; len
< size
- outer
+ 64; ++len
)
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
)))
233 printf ("strncpy flunked for outer = %d, inner = %d, len = %Zd\n",
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
)))
243 printf ("strncpy+1 flunked for outer = %d, inner = %d, len = %Zd\n",
255 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
257 for (inner
= MAX (outer
, size
- 64); inner
< size
; ++inner
)
261 if ((stpcpy (dest
, &adr
[outer
]) - dest
) != inner
- outer
)
263 printf ("stpcpy flunked for outer = %d, inner = %d\n",
273 for (outer
= size
- 1; outer
>= MAX (0, size
- 128); --outer
)
275 for (middle
= MAX (outer
, size
- 64); middle
< size
; ++middle
)
279 for (inner
= 0; inner
< size
- outer
; ++ inner
)
281 if ((stpncpy (dest
, &adr
[outer
], inner
) - dest
)
282 != MIN (inner
, middle
- outer
))
284 printf ("stpncpy flunked for outer = %d, middle = %d, "
285 "inner = %d\n", outer
, middle
, inner
);
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
)
300 printf ("memcpy flunked for outer = %d, inner = %d\n",
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
)
311 printf ("mempcpy flunked for outer = %d, inner = %d\n",