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Some more strncpy checks.

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This commit is contained in:
Ulrich Drepper 2002-09-10 00:25:47 +00:00
parent 64ca3f329b
commit 2836ec9022
1 changed files with 30 additions and 2 deletions
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32
string/stratcliff.c
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@ -1,5 +1,5 @@
/* Test for string function add boundaries of usable memory.
Copyright (C) 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
Copyright (C) 1996,1997,1999,2000,2001,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@ -192,7 +192,25 @@ main (int argc, char *argv[])
}
}
/* strncpy test */
/* 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)
@ -213,6 +231,16 @@ main (int argc, char *argv[])
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';